STAAD.foundationUSER’S MANUALa Bentley Solutions is a proprietary computer program of Research Engineers,International (REI), a Bentley Solutions center.The program and this document have been prepared in accord with establishedindustry engineering principles and guidelines. While believed to be accurate, theinformation contained herein should never be utilized for any specific engineeringapplication without professional observance and authentication for accuracy,suitability and applicability by a competent and licensed engineer, architect or otherprofessional. Bentley Systems disclaims any liability arising from the unauthorizedand/or improper use of any information contained in this document, or as a result ofthe usage of the program.RELEASE 4.0CopyrightResearch Engineers, InternationalA Bentley Solutions Center.Published January 2009

About is a program from Research Engineers International, for theanalysis and design of various types of foundations, such as individual footings,mats, pile caps, combined footing, strip footing, octagonal footing. Plantfoundations such as vertical vessel foundation and heat exchanger foundation havebeen introduced to serve specific needs of plant industry.

Table of User’s ManualSection RequirementsInstallationRunning STAAD.foundationSection BasisIntroduction to Finite Element AnalysisElement Load SpecificationTheoretical BasisElement Local Coordinate SystemOutput of Element ForcesSign Convention of Element Program TheorySection Requirements, Installation and Start-upQuick TourIntroductionStarting a New ProjectEntering Support CoordinatesDefining the LoadsUsing Jobs to Specify Design ConstraintsEntering Design ParametersPerforming an Isolated Footing DesignImporting Structural Geometry and Analysis Results from STAAD.ProCreating a New Job for a Mat FoundationSetting Up the Grid and Defining the Mat BoundaryCreating a MeshSpecifying Slab ThicknessDefining Soil PropertiesAnalyzing the SlabSlab DesignPile Cap ExampleEntering Pile DataEntering Pile Cap Design ParametersPerforming Pile Cap Design and Viewing ResultsExporting Drawings to CADCreating Strip Footing JobStrip Footing design parametersCreating Octagonal Footing Job1-11-21-41-51 - 102-12-22-62-72 - 112 - 122 - 142 - 193-13-23-33-93 - 113 - 193 - 233 - 243 - 293 - 333 - 353 - 383 - 433 - 443 - 453 - 563 - 703 - 723 - 783 - 803 - 843 - 883 - 913 - 95

3.24 Entering Octagonal footing design parameters3.22 Conclusion3 - 973 - 98Section Graphical Screen OrganizationThe Navigator ControlGlobal Data4.4.1 The Project Info Page4.4.1.1 General Info4.4.1.2 Review History4.4.2 The Foundation Plan Page4.4.2.1 Grid Setup4.4.2.2 Column Positions4.4.2.3 Column Dimensions4.4.3 The Loads and Factors Page4.4.3.1 Create New Load Case4.4.3.2 Add a Column Reaction Load4.4.3.3 Add a Point Load (for Mat only) Add a Quadrilateral Load (for Mat only) Add a Circular Pressure Load (for Mat only) Add a Line Load (for Mat only) Add a Uniform Load (member load) Add a Concentrated Load (member load) Add a Trapezoidal Load (member load) Load Assignment Methods4.4.3.11 Load Combination4.4.3.12 Remove Load Case4.4.3.13 Safety Factor4.5 Job Setup4.5.1 Create a New Job4.5.2 Edit Current Job4.6 Local Data4.6.1 Isolated Footing4.6.1.1 Concrete and Rebar4.6.1.2 Cover and Soil4.6.1.3 Footing Geometry4.6.1.3 Design4.6.2 Pile Cap4.6.2.1 Pile Layout (Predefined) Pile Layout (Parametric) Design Parameters4.6.2.4 Design4. Layout Drawing4. Detail Drawing4.6.3 Mat Foundation4.6.3.1 Default analysis properties4.6.3.2 Physical Beam Table4-24-34-64-84 - 104 - 114 - 134 - 154 - 164 - 284 - 294 - 304 - 314 - 334 - 344 - 354 - 384 - 404 - 424 - 434 - 444 - 454 - 474 - 504 - 514 - 524 - 534 - 574 - 584 - 594 - 604 - 624 - 654 - 684 - 714 - 724 - 794 - 844 - 874 - 904 - 914 - 924 - 944 - 97 Pile Layout4. Pile Position Table4. Recangular Pile Arrangement Wizard (Parametric) Circular Pile Arrangement Wizard (Parametric) Mesh generation4. Adding Mesh Region4. Using Polyline4. Add a reectangular region4. Add a circular region4. Regular Polygon4. Meshing Setup4.6.4 Analysis properties4.6.5 Mat slab design dption4.6.5.1 Analyze4.6.5.2 Displacement4.6.5.3 Disp(Displacement) summery4.6.5.4 (Support)Reaction(s) (Support)Reaction Summery4.6.5.6 Contact Area4.6.5.7 Plate Stresses4.6.5.8 Plate Stresses Summery4.6.5.9 Pile Reaction4.6.5.10 Output View Options4.6.6 Slab Design4.6.6.1 Moment Envelope Generation4.6.6.2 Design Parameters4.6.6.3 Reinforcing zones4.6.6.4 Section Design Along a Line4.6.6.5 Calculation Sheet4.7 Combined Footing4.7.1 Creating Combined footing Job4.7.2 Creating the Combined Footing4.7.3 Defining the Design Parameters4.7.3.1 Concrete and Rebar4.7.3.2 Cover and Soil4.7.3.3 Footing Geometry4.7.3.4 Design4.8 Octagonal Footing4.8.1 Creating Octagonal footing Job4.8.2 Defining the Design Parameters4.8.2.1 Design Parameters4.8.2.2 Footing Geometry4.8.2.3 Design4.9 The Menu Commands4.9.1 File Menu4.9.2 Edit Menu4.9.3 View Menu4.9.4 Tools Menu4.10 The Toolbars4 - 984 - 994 - 1004 - 1024 - 1044 - 1054 - 1064 - 1074 - 1094 - 1114 - 1134 - 1184 - 1244 - 1254 - 1284 - 1314 - 1324 - 1334 - 1344 - 1354 - 1364 - 1374 - 1384 - 1444 - 1454 – 1494 - 1524 - 1574 - 1624 - 1634 - 1644 - 1664 - 1694 - 1704 - 1724 - 1744 - 1784 - 1804 - 1814 - 1834 - 1844 - 1874 - 1894 - 1884 - 1894 - 1994 - 2004 - 2034 - 209 - 2104 - 2144 - 2174 - 2234 - 2264 - 2274 - 2284 - 2294 - 2354 - 2404 - 2434 - 2454 - 2474 - 2494 - 2534 - 255Plant Foundation5-1Introduction5.1.1 Creating a New Plant Setup JobVertical Vessel Foundation5.2.1 Geometry Page5.2.2 Primary Load Page5.2.3 Time Period Page5.2.4 Wind Load Generation Page5.2.5 Seismic Load Generation Page5.2.6 Load Combination Page5.2.7 Design Parameter Page5.2.8 Foundation Type Page5.2.9 Finish and DesignHeat Exchanger Foundation5.3.1 Exchanger Geometry Page5.3.2 Footing Geometry Page5.3.3 Primary Load Page5.3.4 Wind Load Generation Page5.3.5 Seismic Load Generation Page5.3.6 Load Combination Page5.3.7 Design Parameter Page5.3.8 Finish and DesignSection Toolbar4.10.1.1 File Toolbar4.10.1.2 Print Toolbar4.10.1.3 Import Toolbar4.10.1.4 Save Picture Toolbar4.10.1.5 Change Job Toolbar4.10.1.6 Change Current Load Case Toolbar4.10.1.7 Tools Toolbar4.10.1.8 Loading Toolbar4.10.1.9 View option Toolbar4.10.1.10 Scale Setup Toolbar4.10.1.11 Unit Setup ToolbarHelp ToolbarRotate ToolbarZoom ToolbarSelect ToolbarIndian Verification ProblemsIndian Verification Problem 1Indian Verification Problem 2Indian Verification Problem 3Indian Verification Problem 4Indian Verification Problem 55-25-35-55-65-85-95 - 125 - 155 - 195 - 215 - 235 - 245 - 255 - 265 - 295 - 325 - 345 - 385 - 425 - 445 - 476-16-26-76 - 126 - 166 - 21

1-11System Requirements, Installation and Start-upSectionThis section includes discussion on the following topics: IntroductionHardware RequirementsInstallationRunning STAAD.foundation1 – User’s Manual1-2Section 1 – System Requirements, Installation and Start-up1.1IntroductionThank you for your purchase of is an exhaustive analysis, design, and draftingsolution for a variety of foundations that include general foundationtypes such as isolated, combined footings, mat foundations, pilecaps and slab on grade and plant foundation such as vertical vesselfoundation and heat exchanger foundation. A part of theSTAAD.Pro family of products, is a costsaving downstream application that enables engineers to analyzeand design a foundation. can automaticallyabsorb the geometry, loads and reactions from a STAAD.Pro modeland accurately design isolated, pile cap, strip footing, true matfoundations and even perform pile arrangements for a pile not only analyzes and designs a myriad offoundation configurations, but will also produce production qualityreports and detailed 3D rendering of your foundation structures.With full OpenGL graphics, engineers can clearly see the displacedshape, stress distribution, reinforcement layout and force diagramsof their supporting structure. All models use physical objectsincluding physical beams, physical slabs, automatic meshing, loaddistributions, and support generation. designsthe physical slabs rather than individual elements.For mat foundation designs, utilizes a truefinite element design using the individual element stresses ratherthan using column strips. can be used in astand-alone mode or can be used in conjunction with STAAD.Prowhere the support reactions from the main model and associatedload cases are automatically brought in.Because provides a total solution for yourfoundation needs, a built-in project management system enablesline and span of control, revision records and multi-jobfunctionalities. This helps you reduce cost in assembling thetechnical and managerial information for your foundation. Fullstep-by-step calculations are also provided in XML form (where

Section 1 – System Requirements, Installation and Start-uppossible) to verify each and every output provided by the program.These verification checks can be easily shared with your clients forapproval.We hope you enjoy your experience with Ifyou have any questions or problems with the program, please visitour product page at oremail us at [email protected] – User’s Manual1-4Section 1 – System Requirements, Installation and Start-up1.2Hardware RequirementsThe following requirements are suggested minimums. Systems withincreased capacity provide enhanced performance. PC with Intel-Pentium / AMD processor.Graphics card and monitor with 1024x768 resolution, 256color display (16-bit high color recommended).128 MB RAM or higher.Windows 98/ NT 4.0 or higher operating system. Windows2000/XP Preferred. Running it on Windows 95 systems isnot recommended, as performance may be degraded.Sufficient free space on the hard disk to hold the programand data files. The disk space requirement will varydepending on the modules you are installing. A typicalminimum is 500MB free space.Note: Additional RAM, disk space, and video memory willenhance the performance of The user musthave a basic familiarity with Microsoft Windows systems inorder to use the software.

Section 1 – System Requirements, Installation and Start-up1.3InstallationTo install 4.0, ensure you have logged in your machinewith an account that has administrative privileges. If you are unable to log inwith a suitable account, then contact your network administrator to login andperform the installation.It is to be noted that, before installing 4.0, you must install“Bentley IEG License Service, Version 2.0.7” using the MSI package“BentleyIEGLicenseService.2.0.7.msi”. This MSI package is available at theBentley SELECT download site as the pre-requisite for STAAD.foundationand can be downloaded from the same location as If youcan locate any updated version (later than 2.0.7) of this component, you mayuse that package instead of “BentleyIEGLicenseService.2.0.7.msi”.Locate 4.0 installation image on local or network drive anddouble click on the installation startup MSI package (STAAD.foundation4.msi) or double click on the installation startup program (Setup.exe)available within the Install subfolder of the installation image.While installing, please follow all of the installationinteraction dialogs and enter necessary information. Following dialogs willappear in sequence.Follow the instructions on the subsequent dialog boxes. The following stepsare for assistance on the more significant dialogs. Those that are notillustrated here are self explanatory.1-5 – User’s Manual1-6Section 1 – System Requirements, Installation and Start-upThe first screen is a welcome screen. Click on Next button to continueinstallation.

Section 1 – System Requirements, Installation and Start-upNext screen is the license agreement. By default the option is set to “I do notaccept the terms in the license agreement” and Next button is grayed. Select“I accept the terms in the license agreement” option to continue with theinstallation.Next screen allows user to choose destination folder. By default thedestination folder is set as “C:\ 4”. Click on “Change” buttonto change the folder location.1-7 – User’s Manual1-8Section 1 – System Requirements, Installation and Start-upWhen asked for SELECT Server name and site activation key, please enterthe information if you have those. For Standalone workstation set servername to LocalHost and activation key to 1. For Bentley hosted or deployed(local) SELECT installations discussed later in this guide, you will need to usethe proper server name and activation key. In case of Bentley hosted serverboth server name and activation key is provided by Bentley. For deployed(local) SELECT server installations activation key is provided by Bentley andserver name is the name of your local SELECT server. You may also chooseto configure these information later.A trial license is installed with software, which allows you to for a period of up to 15 days. In case you did not enter these