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CAESAR II can analyze piping systems of virtually any size or complexity, whether you are designing a new system or troubleshooting an existing one. View the features of CAESAR II and the latest enhancements, organized by version:

Version 5.20
Version 5.10
Version 5.00
Version 4.50
Version 4.40
Version 4.30
Version 4.20
Version 4.10
Version 4.00
Version 3.24
Version 3.23
Version 3.22
Version 3.21
Version 3.20
Version 3.19
Version 3.18
Version 3.17
Version 3.16
Version 3.15
Version 3.1
Version 3.0
Version 2.2B
Version 2.1C
Version 2.0A
Version 1.1S
Initial Capabilities (12/84)

CAESAR II Initial Capabilities (12/84)
  • Input data spreadsheets featuring data duplication to the next pipe element
  • Vessel local flexibility calculations
  • Multiple load case spring hanger design
  • Algebraic load case combinations
  • Nonlinear restraints with gaps, friction, two-node, and skewed options
  • Zero or finite length expansion joints with "tension only" tiebars
  • Built-in database of pipe materials and properties
  • B31 code compliance reports
  • Static and dynamic capabilities, including animated mode shape plots
  • Extensive input/output graphics
  • Pressure effects on bends, including consideration of circular or slightly oval cross-sections

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CAESAR II Version 1.1S Features (2/86)
  • Help Windows
  • AutoCAD interface
  • HP plotter interface
  • Batch execution opinion
  • Accounting system
  • File handler
  • Spooled input listings
  • Uniform load in Gs
  • Liberal code stress allowable
  • Cursor pad and function key implementation in input spreadsheets
  • Plot menu single keystroke access
  • Stainless steel pipe schedules
  • Direct input of specific gravity
  • Bourdon pressure options
  • Hanger control spreadsheet updates

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CAESAR II Version 2.0A Features (10/86)
  • AISC structural steel database: More than 800 different structural steel cross-sections.
  • Keyword/batch structural steel preprocesser: Same quality CAESAR II graphics with structural steel volume plots, interactive error checking, extensive interactive help, and fully compatible with CAESAR II piping models.
  • High-resolution graphics: EGA support for monochrome and 640x350, 16 color mode. Tecmar Graphics Master support for monochrome and 640x200, 16 color mode. Hercules support for monochrome 720x348 mode.
  • Graphics: Addition of "PAN" and "RANGE" options, improved zooming, stresses and displaced shapes in color, hidden lines removed from volume plots, and pipe and structure plotted together.
  • 3D-graph: Option to plot stresses for all nodes for all load cases on the same plot.
  • Simultaneous use of two screens: One monochrome and the other graphics.
  • WRC 107 stress calculations
  • Units: English and SI standard options, or user may define his own set of unit constants and labels. Output may be generated in multiple unit sets, and input files may be converted from one unit set to another.
  • Wind load calculations: According to ANSI A58.1-1982, or user may input his own velocity or pressure versus elevation tables.
  • Pipe/structure "include" option: Piping input from one file may be included in another with a given node and rotational offset.
  • Quick natural frequency range calculations: Computes the number of natural frequencies in any user-given range in the amount of time needed to do a single static solution.
  • High-resolution hardcopy printer plots
  • Setup file directives: Users may set the following CAESAR II execution parameters:
    • a.) Graphics hardware configurations
    • b.) Colors for more than 27 different plotted items
    • c.) B3.1 reduced intersection options
    • d.) Plot/Geometry connection through CNODES options
    • e.) Corroded cross section stress calculation options
    • f.) Minimum and maximum allowed bend angle options
    • g.) Occasional load factors
    • h.) Loop closure tolerance

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CAESAR II Version 2.1C Features (6/87)
  • Uniform and independent support shock spectrum capability.
  • Force spectrum dynamic analysis of fluid waterhammer.
  • Force spectrum dynamic analysis of relief loads.
  • Force spectrum dynamic analysis of wind gust loads.
  • Fluid mechanics analysis of gas or liquid open vent relief system. Includes vent stack sizing, thrust, and pressure rise computations.
  • NRC Dynamics benchmarks for: NUREG/CR-1677, BNL-NUREG-51267, Vol.I, 1980; and NUREG/CR-1677, BNL-NUREG-51267, Vol.ii, 1985.
  • Dynamic "friction" modeling based on static load case results.
  • Eleven (11) pre-defined shock spectra including all Reg. Guide 1.60 spectra and the El Centro North-South component spectra.
  • Improved Harmonic Analysis including the effect of "phased" loading relationships. (Allows modeling of eccentrically loaded rotating equipment.)
  • Improved dynamic output processor, includes user-defined headings and user comments.
  • Animated static and dynamic solutions with structural members and hidden line volume plots.
  • Improved EIGENSOLVER many times faster than earlier algorithms, with automatic out-of-core solution mode.
  • Updated static analysis load case processor.
  • New friction algorithm with interactive control during solution of nonlinear restraints.
  • Improved output file handling of various solution methods.
  • Ability to abort any function at any time during a session using the <ESC> key.
  • New keydisk, memory protection scheme.
  • Hardware/software QA capability for analysis verification.

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CAESAR II Version 2.2B Features (9/88)
  • Large rotation supports: Allows large rotation supports to be handled properly, by computing the support forces in all three global directions. Rod and Chain hanger supports can be modeled now.
  • Nonlinear out-of-core solver: This new solver increases the range of problems CAESAR II can solve by allowing nonlinear solutions to be performed on the hard disk. This capability is necessary when a job is too large to be solved in memory.
  • Friction report: Friction is a non-conservative force, and CAESAR II treats it as such. The restraint reports will now show restraint loads due to friction for each load case.
  • New external interface hooks: A new interface module will allow smooth interface to data conversion modules between CAESAR II and other programs, such as AutoCAD. A new AutoCAD DXF interface is provided, and two third-party vendors have completed interfaces from their AutoCAD ISO packages to CAESAR II.
  • ASCII editor: Due to an overwhelming need and subsequent lack of easy-to-use system editors, a standalone ASCII editor is provided. This editor will enable users to easily modify files such as AUTOEXE.BAT, CONFIG.SYS, and SETUP.CII.
  • 2D XY engineering plotting program: A standalone plotting program is provided to allow users to plot engineering data, such as CAESAR II spectrum files. This program will plot any "real" data arranged in columns.
  • Valve & flange database: The addition of a valve & flange database enables the user to define/select the specific rigid element to be inserted into the piping system. The database is constructed to allow user additions and/or modifications.
  • Dynamic restart: The most time-consuming part of a dynamic analysis is the Eigensolution. This feature allows a job to be restarted and use a previous Eigensolution.
  • WRC updates: The latest edition (1979) of the WRC107 bulletin has been incorporated.
  • Input title page: An optional title page has been added to the input module of the program. Users can now define a title page of up to 19 lines, which will be stored with the input.
  • Expansion joint rating program: This standalone program allows the user to compute the compression of each expansion joint corrugation and the compression of the joint as a whole. These values can then be compared to manufacturer’s recommendations for joint acceptance.

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CAESAR II Version 3.0 Features (4/90)
  • VGA graphics support (on input)
  • Interactive (immediate) rotation of the input graphics image
  • Updated graphics user interface
  • Optional WRC 329 implementation of new stress intensification factors for intersections
  • Optional ASME Class 1 flexibility calculations for reduced intersections
  • Optional WRC 329 fixed to B31.1 and B31.3 piping code equations
  • Piping codes: B31.4, B31.8, ASME Sect III Class NC and ND, CAN Z184 and Z183, Swedish Power Methods 1 and 2, BS806.
  • Updated SIF library to include welded joints and Bonney Forge fittings
  • New scrolling help screens
  • Editing list features, including rotate/duplicate of total or partial models
  • Updated WRC 107 table limit check
  • AISC member check
  • Wind load calculations on structural members
  • Additional stress equation control via the SETUP file
  • Numerical sensitivity checks in both the incore and out-of-core solvers
  • Automatic expansion joint modeler using manufacturers database
  • Additional restraint types including bottomed-out spring hangers and bi-linear soil springs

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CAESAR II Version 3.1 Features (11/90)
  • GRAPHICS UPDATES
    • 1) Instantaneous center-of-rotation calculation
    • 2) Element Highlight
    • 3) Element Range

  • ROTATING EQUIPMENT REPORT UPDATES
    • 1) API 610 7th Edition Addition
    • 2) SI/User Units
    • 3) HEI Additions

  • WRC 107 UPDATES
    • 1) Simplified input
    • 2) WRC 297 stress calculations

  • MISCELLANEOUS MODIFICATIONS
    • 1) Screen data presentation changes
    • 2) Direct control jumping between executables
    • 3) Increased number of allowed program designed hangers
    • 4) Additional spring hanger design options

  • Database updates include additional spring hanger tables
  • Soil Modeler for Buried Pipe

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CAESAR II Version 3.15 Features (9/91)
  • The installation program uses the file compression routines from PKWARE. This significantly reduces the number of diskettes distributed and the time needed to install the CAESAR II package.
  • Flange leakage and stress calculations - Elastic models of the annular plate, gasket, and bolts predict the relative degrees of gasket deformation leading to a leaking joint. Stress calculations in accordance with ASME Sect. VIII Div. 1 are also provided for comparison.
  • WRC 297 local stress calculations - This bulletin supplements WRC 107, and in addition computes stresses in the nozzle as well as the vessel.
  • Stress Intensification Factor Scratchpad. The new module shows the effects of the various code options available in CAESAR II, and illustrates the relationship between the various interpretations. WRC 329 SIF options are included. SIFs for stanchions on elbows are also computed.
  • A pen-plotting program (PENPLT) plots up to 2500 element models (LARGE Includes) on the screen or on an HPGL compatible hardware device.
  • The static output processor has been updated to support VGA graphics and to provide screen dumps to HP Laser Jet Series II compatible printers.
  • Updated SYSCHK program now checks that SHARE is loaded when necessary. Missing coprocessor is also immediately reported.
  • Updated PLTS now allows users to save labels, scaling information, and file names during plotting sessions.
  • Updated ROT (rotating equipment program) provides additional code interpretations for the HEI bulletin.
  • The BIGPRT (large job printing program) has been expanded to handle even larger jobs and to provide a "local" element report.
  • As of Version 3.15, CAESAR II will utilize the ESL devices to authorize access to the program. The ESLs are more stable than the previously used keydisk and provide additional client information to the program. Additional information on the ESLs can be found in the update pages for the User’s Manual.
  • Please note, the first access of Version 3.15 will cause the ESL activation code to prompt for the keydisks (both unlimited and limited). Both keydisks must be available to properly activate the ESL.
  • A printer setup program (PRSET) is provided to adjust the number of lines per logical page for dot matrix printers. Users with page lengths longer than 11 inches will find this program very useful.

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CAESAR II Version 3.16 Features (12/91)
  • The internal file maintenance utility has been completely rewritten. The new file handler provides the same capabilities as the previous file handler, but with faster response times. Additionally, the new file handler is compatible with disk partitions larger than 32 Mbytes, and manipulates the data files created by Versions 3.xx of CAESAR II.
  • A configuration program has been added to CAESAR II to allow users to modify the SETUP.CII file from spreadsheets. The configuration program also includes the standard COADE help interface to facilitate setting the directives.
  • The structural programs (C2S and AISC) have been revised to access either the 1977 AISC data base or the 1989 AISC data base. Additionally, the AISC program has been updated to perform the unity checks (code compliance) using the 1989 code, which includes the methodology for checking single angles.
  • The equipment module (ROT) has been enhanced to handle vertical inline pumps for API-610, 7th Edition.
  • The Stoomwezen 1989 (Dutch) piping code has been added.
  • Three additional spring hanger tables have been added (Basic Engineering, Capitol Pipe Supports, Piping Services Company).
  • The editors found in the structural preprocessor, the ASCII file editor, and the piping preprocessor title page have been modified to allow the insertion and deletion of single characters. Appropriate screen instructions are provided where necessary.
  • An "automatic loop closure" command has been added to the piping preprocessor.
  • A "jacketed pipe" example has been included in the documentation. The input file for this example is included in the EXAMPLES set on the distribution diskettes.
  • Updated modulii of elasticity for default CAESAR II materials based on 1990 code revisions.

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CAESAR II Version 3.17 Features (3/92)
  • Support of the DOS environment is now available in CAESAR II. This allows users to run the software from various subdirectories on the hard disk, other than the installation directory.
  • Facilities have been provided to enable the user to modify the default colors used throughout the CAESAR II program. Four predefined sets of text colors are provided as well as the ability to modify whichever set is currently selected.
  • The utilities menu has been expanded to include all of the secondary CAESAR II processors.
  • Help has been added for the input graphics, the Pen Plot graphics, and the WRC 107 program.
  • A new on-line error processor has been incorporated. This enables the software to provide the user with an explanation of the cause of many of the fatal error messages, as opposed to the display of only the error number.
  • The file handler has been modified to allow the manual entry of a new job name.
  • The input piping preprocessor now includes a material number (21) for "User Defined" materials.
  • The static and dynamic output menus have been modified to allow the user to return directly to input, or in the case of the dynamics output, to invoke the animation module directly.
  • Graphics for flange selection and output have been added to the ASME flange modules.
  • Input and output file sequencing are checked to aid in Quality Assurance, ensuring the current input file produced the current output file. Input echo reports are also possible from the static output processor.

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CAESAR II Version 3.18 Features (9/92)
  • CODES AND DATABASES
    • The Canadian codes Z183 and Z184 have been revised according to the 1990/1992 publications.
    • The Italian spring hanger manufacturer INOFLEX has been added.
    • The "Database" option of the configuration program now allows the user to set the desired valve and flange data base. Additionally, a database excluding flanges (NOFLANGE) is included.
    • The material database used for the Flange Stress/Leakage module has been updated. The new database includes all changes from the ASME Sect VIII, Division 1, A91 Addenda, the materials are listed in code order, and the number of materials has increased from 450 to 1100.
    • The structural modules (C2S and AISC) have been updated to work with the German structural steel library, which is also included.
  • INTERFACES ADDED
    • A new neutral file interface is provided which allows a two-way transfer of data between the CAESAR II input file and an ASCII text file.
    • An interface is provided between Stoner’s LIQT program and the dynamic modules of CAESAR II. This interface enables dynamic pipe forces from a time domain analysis to be used in the generation of a force spectrum.
  • MISCELLANEOUS CHANGES
    • The static stress summary report has been modified so the maximum code stress percent is reported, not the maximum code stress.
    • A "miscellaneous" option has been added to the configuration program. This option allows various options, including the specification of either the ANSI, JIS, or DIN piping specifications.
    • Other options available from the "miscellaneous" menu are:
      • This option can be used to disable the display of the initial entry screen and the final exit screen.
      • Yes/No Prompts (On/Off) - This option can be used to disable the yes/no/are_you_sure prompts.
      • Output Reports by Load Case (Yes/No) - By default, CAESAR II produces static output reports by load case. This option can be used to generate the same reports by subject.
      • Displacement Report Node Sort (Yes/No) - This option can be used to disable the nodal sorting of the static displacement report.
    • The file handler has been modified to enable directory and disk drive selection and logging. The initial display of the file names can also be controlled by the user. This allows the user to set the sort order as well as the single/multi-column display presentation.
    • A file verification routine has been added to check the installation of CAESAR II. This will aid in detecting program corruption due to hard disk defects and viruses.
    • A new report has been added to the static output menu. This will enable users to obtain a "local force/moment" report for the elements in the system.
    • A 32-bit version of the dynamic summation module is provided for large dynamic analysis. Note, this module requires at least a 386 processor.
    • The animation module has been modified to provide hardcopy output of the mode shapes.

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CAESAR II Version 3.19 Features (3/93)
  • Batch stream processor: A new processor has been included which will allow multiple jobs (up to 12) to be run in series, without user intervention. The jobs can be static analysis, dynamic analysis, or both.
  • Expansion joint database: The Pathway Bellows expansion joint database has been updated. The new database includes two additional pressure classes and diameters out to 144 inches. A new expansion joint database from RM Engineered Products has been added for this release.
  • Input echo: The input echo processor has been modified so the input echo precedes the output data. Additionally, the intermediate data generated by the error checker now appears in this listing.
  • B31G: The B31G criteria for the remaining strength of corroded pipelines has been incorporated. This module includes the original B31G criteria as well as several of the modified methods discussed in the Battelle project.
  • Output processor: A new report has been added to the output processor which generates a Restraint Summary report. This summary details all the loads for all selected load cases for each restraint in the model.
  • Thermal bowing: The effects of thermal bowing on horizontal pipes can be analyzed. By specifying the thermal gradient between the bottom and the top of the pipe, CAESAR II will compute the loads induced and include them with the thermal loads.
  • 32-bit modules: All of the dynamic modules have been moved from the 16-bit mode to the 32-bit mode. Additionally, the animation program now supports EGA and VGA display modes.
  • Title page template: A user-configurable ASCII text file can now be used as a title page template.
  • Interface updates: The CAESAR II data matrix interface and the Autoplant interface have both been updated to use the currently active units file. The ComputerVision interface has been updated to handle "tube" type piping.
  • Expansion joint rating: The expansion joint rating module, ERATE, has been moved into the "Miscellaneous Module," facilitating input via the standard spreadsheets.
  • Refractory lining: The computation modules of CAESAR II have been modified to accept a negative value of insulation thickness. If a negative thickness is encountered, the program will assume the insulation is refractory lining (inside the pipe).
  • Minimum required thickness: The piping error checker now makes the "minimum required thickness" computation according to B31.1, 104.1. This information is reported for each pipe in the listing of intermediate data (See third item above).
  • Spring hanger tables: The E. Myatt & Co. spring hanger table has been added.
  • ESL updates: All of the code used to access the ESLs has been updated to allow access to the 50 and 66 Mhz CPUs.
  • Missing mass: The dynamics modules can consider missing mass effects in the spectrum solutions.
  • Seismic anchor movements: The dynamics modules will allow the specification of seismic anchor movements for independent support motion analysis.
  • RCC-M: The French piping code RCC-M, Section C has been incorporated.
  • Languages: The input and dynamic output supports English, French, and Spanish language headings. Language dependent files can be activated with the appropriate command line switch on the INSTALL directive. For example, INSTALL /S will install any Spanish-specific files.
  • PCX files: All of the graphics modules have been modified to allow the images to be saved to disk files in PCX format. This will enable these images to be brought into word processing and desktop publishing systems.

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CAESAR II Version 3.20 Features (10/93)
  • A completely new set of documentation accompanies this release. This documentation consists of: a User’s Guide, an Applications Guide, and a Technical Reference Guide.
  • The static in-core and out-of-core solvers have been converted to run in 32-bit protect mode utilizing extended memory. Solution times for large jobs have been cut by an order of magnitude.
  • The static output processor has been converted to run in 32-bit protect mode utilizing extended memory.
  • Both the static and dynamic output processors now have the capability to generate ASCII disk files on any drive or directory (using the COADE file manager) on the computer. Additionally, a table of contents summarizing the output is generated for printer and disk devices.
  • The dynamic output processor now includes titles and page numbers (similar to statics), and provides input echo (both system and dynamic) abilities.
  • Modal time history analysis has been added. This includes output report review and animated response review.
  • Standard spectrum analysis now include modal components for displacements. Additionally displacement information is now available for static-dynamic combinations.
  • The Included Mass Report has been clarified and modified to include the active mass in each of the global directions. The percent of the force included/added is now based on a vector sum rather than an absolute sum.
  • The ZPA used in the missing force correction can now be controlled via the configuration file. The user can specify that the ZPA be based on the last extracted mode or the last spectrum value.
  • The static load case array space has been increased by a factor of five, allowing more flexibility in static load case setup.
  • API-650 nozzle flexibilities, according to the ninth edition, July 1993.
  • Checks for allowable loads on Fired Heater Tubes according to API-560 have been added.
  • As an option, users can consider the effects of pressure stiffening on straight pipes.
  • Three additional spring hanger tables: Sinopec (China), BHEL (India), and Flexider (Italy).
  • The Australian structural steel shape database has been added.
  • The ASME material data base has been updated to reflect the 1992 Code addendum.
  • The printer testing routines have been completely rewritten. Additionally, output can be directed to any LPT port.
  • The ability to configure the printer, either dot matrix or laser jet. This is implemented via a text file containing the printer formatting codes, which the user is free to modify.
  • Password protection for input data files, to prevent modification of completed projects.
  • All of the screens in the piping preprocessor (except for the main spreadsheet) are now supported in Spanish and French.
  • Input/Output file time/date sequencing checks have been added to the dynamics modules.
  • The "break" command in the piping input processor has been modified to accept input in feet-inch units instead of only feet. This should allow compound entries in any units system.

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CAESAR II Version 3.21 Changes & Enhancements (7/94)
  • Most of the CAESAR II executable modules have been converted from Microsoft 16 bit FORTRAN to WATCOM 32 bit FORTRAN. This has reduced the low DOS RAM requirements of the program from 577k to 475k.
  • The modules converted to 32-bit operation for Version 3.21 are summarized in the following table:
  • Static Stress Computation Module (1)
  • Piping, Buried & Structural Steel Input Modules (3)
  • Piping Error Checker (1)
  • Load Case & Dynamic Input Module (1)
  • All CAD interfaces (8)
  • Neutral File interfaces (2)
  • The software now supports an ESL from a new vendor. This provides CAESAR II with full networking abilities. The program first checks for a local ESL (from either vendor), then for a network ESL.
  • Toward the support for network operations, the data files which are not job specific are now assumed to be located in a SYSTEM subdirectory underneath the CAESAR II installation directory. These data files include: the input listing formatting files (*.INP), the accounting data files, the printer formatting file, the file handler template file, and the various header files.
  • The common factor among all of these files is that they are specific to a company installation, not a particular data directory. Up until Version 3.21, these data files were manipulated by the program (or sometimes directly by the user) in the installation directory. However, many network installations "write protect" their installation directories, making modifications to these files impossible. We have therefore placed these files in a SYSTEM subdirectory to which users should be given complete access.
  • Note that CAESAR II Version 3.21 will be capable of running on a local machine (with either vendor’s local ESL) or on a network (with the network ESL). The changes made to the software enable the same version to be run under these various configurations.
  • An additional spring hanger manufacturer has been added, Carpenter & Paterson, UK.
  • The UBC (Uniform Building Code) earthquake spectra have been added.
  • The B31.5 piping code has been added.
  • The piping code addenda have been reviewed and any necessary changes made to the software. The addenda include revisions for: ASCE #7, B31.1, B31.8, ASME NC, and ASME ND.
  • The SIF scratch-pad from the Miscellaneous processor (Option C of the Main Menu) has been incorporated into the piping preprocessor. This processor includes all of the supported piping codes (not just B31.1 and B31.3 as before) and all of the fittings. Additionally, any changes made to the scratch-pad data can optionally be transferred directly to the main CAESAR II data spreadsheets.
  • Additional changes to the input piping preprocessor include:
    • Problem size is now dependent on the amount of free extended memory - the old limit of 400 elements is now upwards of 8,000 elements
    • Graphics menus automatically turned off for hardcopies
    • Optional node number display for supports, anchors, hangers, and nozzles
    • Function key map shown on main spreadsheet
    • Auxiliary input spreadsheets support help
  • The accounting system has been completely rewritten. This provides a more streamlined interface. Additionally, accounting statistics are now recorded from the stress computation modules (previous versions only recorded the actual matrix decomposition times).
  • The API-617 and NEMA-SM23 reports have been overhauled so the code compliance when using non-English units systems is consistent.
  • The new Flange Rigidity factor from ASME Section VIII has been added.
  • A new loader (C2.EXE) has replaced the original one (C2.COM). This new loader performs initial startup checks, with diagnostic reporting if necessary, and enables error processing from the Main Menu.
  • The configuration program has been modified to track changes. Users attempting to [Esc] out after making changes are warned that the changes will not be saved.
  • A "graphics viewer" has been added to the file manager. This enables rapid model plotting directly from the file manager of the Main Menu.
  • Additional directives are available to disable the generation of the Table of Contents page, and disable the display of the spreadsheet function key mapping.

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CAESAR II Version 3.22 Changes & Enhancements (4/95)
  • The Harmonic solver has been updated to provide "damping." Harmonic analysis can now include or exclude damping as the user deems necessary.
  • The following codes have been reviewed (and any necessary changes made) for compliance to the latest editions: B31.1, B31.3, B31.4, B31.5, B31.8, NC, ND, and BS-806.
  • The following additional piping codes have been added: RCCM-D, CODETI, TBK 5-6.
  • Center of Gravity calculations have been added, with results displayed in the error checker.
  • A Bill of Materials report has been added.
  • Yield criterion stresses can be computed as either Von Mises or as 3D Maximum Shear Stress intensity.
  • Hoop Stress can be computed based on Outer Diameter, Inner Diameter, Mean Diameter, or Lame’s equation.
  • The spring hanger design spreadsheet has been modified to default to a 25 percent load variation. In addition, the actual hanger load variation now appears in the hanger output reports.
  • A new command (WIND) has been added to the structural steel preprocessor. This allows selective wind loading on an element by element basis.
  • A new key-combination (Alt-D) is available in the input processor to compute the distance between two nodes.
  • User-specified coordinates for up to 30 nodes are saved in the input file.
  • The input title page has been expanded from 19 to 60 lines.
  • Automatic node numbering abilities have been added to the spreadsheets of the main piping input module
  • Expansion Joint databases from IWK (Germany) are provided.
  • Expansion Joint database from Senior Flexonics is provided.
  • MISC converted to 32-bit operations. This module provides the SIF, Flange, WRC297, B31G, and expansion joint rating computations.
  • ROT converted to 32-bit operations. This module provides the equipment calculations for NEMA, API, and HEI. General revisions made for more consistent input screens and help messages.
  • A new report option (in static output) is available to review the "miscellaneous" computations made by the error checker. This report includes: SIFs and flexibility factors, pipe properties, nozzle flexibility data, wind data, CG data, and the bill of materials report.
  • The Intergraph Interface has been improved. The interface now transfers the temperature/pressure pairs. Additionally, if a material mapping file is present, material data can be set correctly by CAESAR II.
  • The CADPIPE Interface has been updated in accordance with CADPIPE Version 4.0.
  • The Restraint Summary in the static output processor has been modified to include the translational displacements of the restrained nodes.
  • The output processors (static and dynamic) have been modified to allow users to change the name of the disk output file if desired. Additionally, modifications have been made so that only a single output device can be enabled.
  • All "language" files have been translated into German. Use "INSTALL /G" to acquire the German files.
  • A new control [F8] at the output menu level allows switching jobs without returning to the Main Menu.

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CAESAR II Version 3.23 Changes & Enhancements (3/96)
  • Mouse support has been added to most modules.
  • The German piping code, FBDR, has been added.
  • Major improvements to FRP (fiber reinforced plastic) stress calculations. This includes the BS 7159 code and guidelines set forth by FRP manufacturers.
  • A bi-directional link to CADWorx/PIPE (COADE’s Piping CAD system) has been added.
  • The WRC107 module has been redesigned to incorporate multiple load cases and perform the ASME Division 2 Stress Intensity Summation, all in one step.
  • An interface to Sunrise System’s PIPENET program has been developed.
  • The South African structural steel tables have been added.
  • Two new spring hanger manufacturer’s tables have been added; Comet (UK) and Hydra (Germany).
  • Two new commands have been added to the structural preprocessor; UNIT and GLOAD.
  • The CADPIPE interface has been updated to comply with the new release (Version 4.1) of CADPIPE.
  • Additional modifications have been made to the Intergraph interface
  • The low DOS RAM requirement has been reduced to 420 Kbytes.
  • The equipment module has been updated to reflect the 1995 edition of API-617.
  • The B31.3 piping code has been updated per the 1995 addendum.

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CAESAR II Changes & Enhancements - Version 3.24 (3/97)

1)

Multiple (3) displacement/force/uniform load vectors have been added. Note that these load cases, called D1/D2/D3 and F1/F2/F3, may be toggled on the input plot by continuing to press F3 and F5 (displacements cycle through D1, D2, D3, and then off). The naming of these load cases has also required the renaming of the CAESAR II load combination terms – D1, F1, S1, etc. must now be called DS1, FR1, and ST1. Note that all hanger loads and cold spring forces (from materials 18 and 19) are still lumped into load case F1, for consistency with previous versions of CAESAR II.

2)

A material data base for piping properties and allowable stresses for many of the piping codes supported by CAESAR II has been implemented. This is invoked by pressing [ALT-M] on the main CAESAR II input spreadsheet (also at the list option and on the WRC 297 nozzle flexibility spreadsheet). After bringing up the list of materials, a material name can be typed in; matching records are then displayed for selection. Allowable stresses are updated automatically whenever temperatures, materials, and/or piping codes change.


Database management is provided from the Utilities option of the main menu. Users may edit COADE provided materials or add their own. Material parameters may be provided for code 0 (represents generic values for any non-specified code) or for specific codes. It is recommended (due to future implementation plans) that metals be assigned identification numbers between 100 and 699, while FRP materials receive numbers between 700 and 999. Note that selection of FRP materials from the material database will not currently activate the orthotropic material model in CAESAR II. This must still be done through the use of material 20 (see item 6 concerning this below).

3)

8 character job names are now supported (input files are identified by extension ._A, output files by extension ._P, ._S, etc.). Existing files are automatically recognized and converted to their new format. (See related item 16 below.)

4)

Modifications have been made to allow multiple users working from the same network data directory via the environment variable COADE_USER. This environment variable should be set to a unique 3 character combination (i.e., the user’s initials) for each user working in the common directory. Implementation can be done by adding to the user’s AUTOEXEC.BAT file a line such as:


SET COADE_USER=TVL

5)

CAESAR II’s Valve and Flange database now incorporates data files from CADWorx/Pipe. This change provides four advantages:


a) Component weights and lengths are more accurate, as well as traceable to specific catalogs, standards, etc.


b) Weights and lengths are provided for more components than were previously available in the CRANE or GENERIC databases.


c) Since CADWorx/Pipe data files are text files, users may easily edit or add components.


d) If the user also has CADWorx/Pipe on their machine, the two programs will share the same data files and project specs, enhancing the performance of the bi-directional interface. Gaskets are included for flanged items, so a better fit is provided between the CADWorx/Pipe and CAESAR II models.

6)

The user may now set default values for FRP (material 20) parameters via the configuration/setup. These default parameters may be read automatically from manufacturers data files by toggling through the list of available files, and then pressing [ALT-U] (for Update) on the selected vendor file. Vendor files are recognized by their .FRP extensions; since these are text files, users may create them easily themselves, or vendors may distribute them to their customers.

7)

The UKOOA (United Kingdom Offshore Operators Association) piping code for FRP piping has been added.

8)

The Z183 and Z184 piping codes have been replaced with the Z662 code, which has been expanded to consider calculation of stresses in "restrained" piping.

9)

The ASCE #7 wind code has been updated to the 1995 edition.

10)

The API-610 code in the equipment module has been updated to the 8th edition.

11)

ASME Section VIII Division 2 stress indices and WRC-107 SIF (kn, kb) values have been incorporated into the WRC-107 module.

12)

The "Relief Load Synthesis" dynamics module now supports metric (or custom) units.

13)

A number of configuration file default values have been revised in order to improve calculation results or program performance:


Changed

From

To


BEND_LENGTH_ATTACHMENT=

5.0

1.0


BEND_AXIAL_SHAPE =

NO

YES


FRICT_STIFF =

50000

1.0E6


FRICT_NORM_FORCE_VAR =

25

15


FRICT_ANGLE_VAR =

30

15


VALVE_&_FLANGE =

GENERIC

CADWORX


Four new directives added to the configuration file.




SYSTEM_DIRECTORY_NAME =

user defined, defaults to SYSTEM (note user may now maintain multiple system directories for different projects)



UNITS_FILE_NAME =

user selected from list (note current units are now set through the configuration/setup, not through the units option of the main menu)



BS_7159_PRESSURE_STIFFENING=

Design strain or Actual Pressure



FRP_PROPERTY_DATA_FILE=

user selected from list


14)

The configuration file can also be password protected in the Installation Directory. This prevents modification of all Computation and Stress Control directives. Subsequent use of the configuration module prevents modification of these directives, unless the password is known. Colors, printer settings, etc. may still be changed by users without the password.

15)

CAESAR II has been modified to accept an optional job name (including full drive and path data) as an argument; the program switches to the appropriate drive and directory, opens the specified job, and goes into input (bypassing the main menu). This allows the definition of ._A files as CAESAR II input files (under Windows 95) and subsequent double clicking on the file name in a Windows/95 explorer window to start the input processor on the picked job file. This also allows CAESAR II to be spawned from other programs, right into a job.

16)

Modifications to CAD interfaces: Intergraph and CADPIPE.

17)

All necessary routines have been checked (and modified where appropriate) to address the "Year 2000" issue.

18)

A Korean structural steel shape library has been added.

19)

A new spring hanger table has been added (SARATHI).

20)

BS-5500 nozzle flexibilities have been incorporated to complement the WRC-297 and API-650 nozzle connections.

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CAESAR II Changes & Enhancements - Version 4.00 (12/97)
  • Windows conversion. The entire program was converted from a DOS based application to a native Windows (95/NT) application.
  • Simultaneous review of graphics and input spreadsheet.
  • Addition of rendering and wireframe graphics in plot modes.
  • Added the ability to extract piping loads from solution files in the WRC and Equipment modules.

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CAESAR II Changes & Enhancements - Version 4.10 (2/99)
  • Expanded the temperature, pressure, displacement, and force load sets to allow up to 9 distinct vectors.
  • Finalization of TD/12 piping code.
  • Updated the CODETI, NC, ND, B31.1, and B31.3 piping codes to latest addenda.
  • Added Fatigue Analysis capabilities, including Cumulative Damage.
  • Added "results filters" to limit the output reports to specific areas of interest.

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CAESAR II Changes & Enhancements - Version 4.20 (2/00)
  • New Input Graphics - uses a true 3D library, enabling graphic element selection.
  • Element input or redirection via local coordinate (cosines) system.
  • Completely revised material data base, including Code updates.
  • Optional static output in ODBC compliant data base for static restraints is available
  • Hydrodynamic loading for offshore applications. This includes the Airy, Stokes 5th, and Stream Function wave theories, as well as Linear and Power Law current profiles.
  • Wind analysis expanded to handle up to 4 wind load cases.
  • New piping codes: B31.4 Chapter IX, B31.8 Chapter VIII, and DNV (ASD).
  • A wave scratchpad - see the recommended theory graphically, or plot the particle data for the specified wave.
  • Hydra expansion joint databases.
  • A new/revised expansion joint database is available as a result of the merger of Senior Flexonics and Pathway Bellows.
  • A new hanger table (Myricks) is available.
  • Updated piping codes: B31.1, B31.3, B31.4, ASME NC, ASME ND.
  • Automatic Dynamic DLF Plotting.
  • PCF Interface.

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CAESAR II Changes & Enhancements - Version 4.30 (3/01)
  • Enhanced Input Graphics - color coding for diameters, thicknesses, temperatures, pressures; a transparency option, user session settings saved on a per job basis, graphics + LIST available at the same time.
  • An Undo/Redo facility has been incorporated into the piping input module.
  • An optional "Z Axis Up" feature is available.
  • The Static Load Case Editor has been enhanced to allow user-specified combination types (Algebraic, Scalar, SRSS, SignedMax, SignedMin, Max, Min, Absolute), as well as user-specified names, output type (Displacement, Force, Stress), as well as output status (Keep, Discard).
  • A new Code Compliance report has been added.
  • An ODBC Wizard has been added to address the need to send specific data to external databases. Output can be directed to MS Access, a flat text file, or an XML file.
  • The 3D graphics capabilities have been incorporated into the Structural, Animation, and WRC107 modules.
  • Animated Tutorials have been incorporated into the Documentation section.
  • Updated piping codes.
  • All text output can be (optionally) directed to MS Word.

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CAESAR II Changes & Enhancements - Version 4.40 (5/02)
  • Revised piping codes: B31.3, B31.4, B31.5, B31.8, ASME NC, ASME ND
  • The B31.11 piping code has been added.
  • An alpha-numeric node label option has been added to the piping input module.
  • Expanded Static Load case options: (1) added load components H, CS, HP, and WW (hanger loads, cold spring, hydro pressure, and weight filled with water, respectively), (2) added HYDRO stress type, (3) added option to set snubber and hanger status on a load case basis, (4) provided ability to scale friction factor on a load case basis.
  • Added automatic generation of a hydrotest load case (WW+HP, HYD stress type, and spring hangers locked), triggered by the presence of a non-zero HP.
  • A large number of updates have been made to the 3D input graphics, as well as partial implementation in the static output processor (including the "Element Viewer").
  • Updated the spring hanger design algorithm to provide the option to iterate the "Operating for Hanger Travel" load case to include the stiffness of the selected hanger.
  • Added new configuration options for ambient temperature, default friction coefficient (if non-zero, automatically applied to new translational restraints), liberal stress allowable, stress stiffening, and Bourdon settings, as well as B31.3 handling of B16.9 welding tee & sweepolet SIFs.
  • Spring Hanger manufacturers have been added, Pipe Supports USA and Quality Pipe Supports.
  • Added the ability to define the flexibility factor on bends.
  • Included piping and structural files now support long file names, may be located in any directory path, and the number of included structural files has been expanded from 10 to 20.
  • Results of the Hanger Design Cases are now optionally viewable in the Static Output Processor (set status to "KEEP" in the Load Case Options).
  • Added the ability to filter static Restraint reports by CNODE status.
  • Added a new "warning report" to the static output.
  • A "dirty flag" has been added to the piping input preprocessor and the configuration modules. Attempting to exit these processors without saving changes produces a warning message.
  • Differences between material data in the input file and in the material database (including missing "user materials") are now detected, offering the user the opportunity to use the original data.
  • Reviewed/updated the "minimum wall" computation for all piping codes for straight pipe.
  • A field for specifying "Marine Growth Density" has been added to the Wind/Wave dialog.
  • Updated API-661 to 4th Edition.
  • Added the ability to save static load case data without running the job.

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CAESAR II Changes & Enhancements - Version 4.50 (11/03)
  • Revised piping codes: B31.1, B31.4, ASME NC, ASME ND, IGE/TD/12, API-610.
  • Revised material database for B31.1 A2001 changes.
  • Reducer element added.
  • Dynamic HTML help for piping, structural input and configuration modules.
  • Major graphics improvements including:
    • A walk-through option is available.
    • The static output processor can now produce colored stress plots of the piping system.
    • A graphical find (zoom to) option has been added.
    • Instant use of graphics, even before drawing is completed.
    • Resizable restraint/hanger symbols.
  • "Spectrum Wizard" in dynamics to automatically build spectra for UBC, ASCE, IBC, and ASME spectra.
  • Automatic acquisition of website software updates.
  • The structural steel interface has been redesigned for easier operation.
  • Modified to allow multiple instances of CAESAR II to run.
  • Additional FRP data files included.
  • The static output processor remembers all user settings (filters, labels, and report size).
  • Combined WRC-107/297 module for local stress calculations.
  • "Load Case Template" implemented for recommending static load cases.

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CAESAR II Changes & Enhancements - Version 5.00 (10/05)

  • The following new piping codes have been added: EN-13480, GPTC/192, Z662 Ch 11.
  • The following piping codes have been revised due to “code” changes: B31.1, B31.3, B31.5, B31.8, B31.11, ASME NC, ASME ND, CODETI, TBK 5-6.
  • Additional codes and standards updated: API-610.
  • Added Ameron Bondstrand, and Conely FRP pipe specification files.
  • Added Binder (Australia) and PiHASA (Spain) spring hanger tables.
  • Added structural steel data bases from India and Japan.
  • The ability to perform dynamic analysis optionally using a consistent mass matrix. This obviates the need to re-mesh the model for better mass distribution.
  • The ability to perform an analysis using the “hot” material elastic modulus.
  • The static output processor has been enhanced to provide users with the ability to create custom, reusable reports.
  • The piping input processor has been revised to provide a combined view showing both the graphics and the spreadsheet. The new piping input processor has integrated the Piping Error Checker, and access to the configuration module has been provided. For debugging and problem solving, relevant sections of the spreadsheet can be torn off and placed on the graphics pane, allowing the spreadsheet to be hidden for larger graphics display. Additionally, sections of the model can be graphically selected and then modified.

            

  • Updated Intergraph and PCF interfaces.
  • An “Isogen” export facility has been added, allowing the creation of Isogen “stress isometrics.”

            

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CAESAR II Changes & Enhancements - Version 5.10 (9/07)

  • Added in-line flange rating evaluation per B16.5 and NC-3658.
  • Graphics Improvements:
    • Graphics rendering speed has been improved by 20 percent to 50 percent, depending on the job.
    • Added additional controls to view corrosion and densities.
    • Added the ability to import an Autocad (CADWorx) model directly into the piping input, to provide visualization of supporting steel, vessels and other equipment.

              

  • Static Output Processor Improvements:
    • Report generation times reduced by 70 percent or better.
    • Presentation in “tabbed” window to allow viewing multiple reports, and immediate switching between reports.
    • Individual items can be selected from the “Miscellaneous Report.”
    • Reports can be zoomed and individually directed to an output device via a “context menu.”
    • Custom report templates can be imported and exported.
  • Static Load Case Editor enhancements:
    • In-Line Flange Evaluation has been added, at the load case level.
    • Added the ability to alter the “occasional load multiplier” on a “per load case basis.”
    • Added the ability to “import” static load data from different jobs.
    • Added the ability to copy wind and wave vectors.
  • Added user control over whether or not insulation should be considered in hydro test cases.
  • The following new piping codes have been added: PD-8010 Part 1 and Part 2.
  • The following piping codes have been revised due to “code” changes: B31.1, B31.3, B31.4, Z662, EN-13480
  • Added support for B31.3 Section 319.2.3(c), allowing axial stress to be included in the Expansion Code Stress.
  • API-661 revised to 6th Edition.
  • Wind and Seismic load calculations revised to ASCE #7 2005.
  • Added a number of European materials to the material database.
  • Updated stainless steel pipe specification data per B36.19M.
  • Updated DIN pipe size specification to comply with EN-10220 (seamless) instead of DIN-2458 (welded).
  • Chinese structural steel and expansion joint databases have been added.
  • Added spring hanger data from Gradior Power, (Czech Republic).
  • Updated the flange material database per ASME Sect VIII Div 1, 2007 Edition.
  • Updated the Inoflex Spring Hanger data.

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    CAESAR II Changes & Enhancements - Version 5.20 (4/09)

    • The ISO-14692 Code has been added for FRP systems.
    • A “Loop Optimization Wizard” has been incorporated to assist in expansion loop design.

    • The “Buried Pipe Modeler” now supports the “American LifeLines Alliance” as a second soil stiffness method.
    • The Mexican Seismic Code has been added to the Dynamic Input module for the automatic generation of response spectra.
    • A “static seismic wizard” has been added to assist in computng “G factors” for ASCE, NBC, and CFE.
    • Additional wind codes (10) have been added to the Static Load setup.
    • The permitted number of static load cases has been increased from 99 to 999.
    • The valve/flange insertion routine has been modified to “cut back” the straight pipe length if necessary.
    • A number of “drop lists” have been added to the Piping Input Spreadsheet to assist with input specification.  These “drop lists” appear on the “bend radius” and “insulation density” fields.
    • Spring Hanger Table definition has been streamlined through the addition of three checkboxes for: cold load design, extended range springs, and centered hot load.
    • Flange Symbols are now drawn on the piping elements if flange ratings have been requested.
    • The following piping codes have been revised due to “code changes”:  B31.1, B31.8, GPTC/Z380, ASME NC, ASME ND.
    • “User writeable” subdirectories have been moved from below \caesarii to the %allusersprofile” area.
    • Automatic e-mail generation (for Technical Support issues) has been added.
    • The “File Open” dialog has been improved to permit the “roll-back” to earlier revisions of the (piping) input.
    • A new export option is available for “Static Output” data – export to MS Excel.  This is raw data only to improve export speed.



     
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