Table Of ContentSTAAD.Pro 2007
A E M
MERICAN XAMPLES ANUAL
DAA037790-1/0001
A Bentley Solutions Center
www.reiworld.com
www.bentley.com/staad
STAAD.Pro 2007 is a suite of proprietary computer programs of Research
Engineers, a Bentley Solutions Center. Although every effort has been made to
ensure the correctness of these programs, REI will not accept responsibility for any
mistake, error or misrepresentation in or as a result of the usage of these programs.
Copyright attribution: ©2008, Bentley Systems, Incorporated. All rights reserved.
Trademark attribution: STAAD.Pro, STAAD.foundation, Section Wizard,
STAAD.Offshore and QSE are either registered or unregistered trademarks or service
marks of Bentley Systems, Incorporated or one of its direct or indirect wholly-owned
subsidiaries. Other brands and product names are trademarks of their respective
owners.
RELEASE 2007, Build 02
Published September, 2007
About STAAD.Pro
STAAD.Pro is a general purpose structural analysis and design program with
applications primarily in the building industry - commercial buildings, bridges and
highway structures, industrial structures, chemical plant structures, dams, retaining
walls, turbine foundations, culverts and other embedded structures, etc. The program
hence consists of the following facilities to enable this task.
1. Graphical model generation utilities as well as text editor based commands for
creating the mathematical model. Beam and column members are represented
using lines. Walls, slabs and panel type entities are represented using triangular
and quadrilateral finite elements. Solid blocks are represented using brick
elements. These utilities allow the user to create the geometry, assign properties,
orient cross sections as desired, assign materials like steel, concrete, timber,
aluminum, specify supports, apply loads explicitly as well as have the program
generate loads, design parameters etc.
2. Analysis engines for performing linear elastic and pdelta analysis, finite element
analysis, frequency extraction, and dynamic response (spectrum, time history,
steady state, etc.).
3. Design engines for code checking and optimization of steel, aluminum and timber
members. Reinforcement calculations for concrete beams, columns, slabs and
shear walls. Design of shear and moment connections for steel members.
4. Result viewing, result verification and report generation tools for examining
displacement diagrams, bending moment and shear force diagrams, beam, plate
and solid stress contours, etc.
5. Peripheral tools for activities like import and export of data from and to other
widely accepted formats, links with other popular softwares for niche areas like
reinforced and prestressed concrete slab design, footing design, steel connection
design, etc.
6. A library of exposed functions called OpenSTAAD which allows users to access
STAAD.Pro’s internal functions and routines as well as its graphical commands to
tap into STAAD’s database and link input and output data to third-party software
written using languages like C, C++, VB, VBA, FORTRAN, Java, Delphi, etc.
Thus, OpenSTAAD allows users to link in-house or third-party applications with
STAAD.Pro.
About the STAAD.Pro Documentation
The documentation for STAAD.Pro consists of a set of manuals as described below.
These manuals are normally provided only in the electronic format, with perhaps some
exceptions such as the Getting Started Manual which may be supplied as a printed
book to first time and new-version buyers.
All the manuals can be accessed from the Help facilities of STAAD.Pro. Users who
wish to obtain a printed copy of the books may contact Research Engineers. REI also
supplies the manuals in the PDF format at no cost for those who wish to print them on
their own. See the back cover of this book for addresses and phone numbers.
Getting Started and Tutorials : This manual contains information on the contents of
the STAAD.Pro package, computer system requirements, installation process, copy
protection issues and a description on how to run the programs in the package.
Tutorials that provide detailed and step-by-step explanation on using the programs are
also provided.
Examples Manual
This book offers examples of various problems that can be solved using the STAAD
engine. The examples represent various structural analyses and design problems
commonly encountered by structural engineers.
Graphical Environment
This document contains a detailed description of the Graphical User Interface (GUI) of
STAAD.Pro. The topics covered include model generation, structural analysis and
design, result verification, and report generation.
Technical Reference Manual
This manual deals with the theory behind the engineering calculations made by the
STAAD engine. It also includes an explanation of the commands available in the
STAAD command file.
International Design Codes
This document contains information on the various Concrete, Steel, and Aluminum
design codes, of several countries, that are implemented in STAAD.
The documentation for the STAAD.Pro Extension component(s) is available
separately.
i
Introduction
The tutorials in the Getting Started Manual mention 2 methods of
creating the STAAD input data.
a. Using the facilities of the Graphical User Interface (GUI)
modelling mode
b. Using the editor which comes built into the STAAD program
Method (a) is explained in great detail in the various tutorials of
that manual.
The emphasis in this Examples manual is on creating the data
using method (b). A number of examples, representing a wide
variety of structural engineering problems, are presented. All the
input needed is explained line by line to facilitate the
understanding of the STAAD command language. These examples
also illustrate how the various commands in the program are to be
used together.
Although a user can prepare the input through the STAAD GUI, it
is quite useful to understand the language of the input for the
following reasons:
1) STAAD is a large and comprehensive structural engineering
software. Knowledge of the STAAD language can be very
useful in utilizing the large number of facilities available in
the program.
The Graphical User Interface can be used to generate the input
file for even the most complex of structures. However, the user
can easily make changes to the input data if he/she has a good
understanding of the command language and syntax of the
input.
ii
2) The input file represents the user's thought about what he/she
wants to analyze or design. With the knowledge of the STAAD
command language, the user or any other person can verify the
accuracy of the work.
The commands used in the input file are explained in Section 5 of
the STAAD Technical Reference Manual. Users are urged to refer
to that manual for a better understanding of the language.
The procedure for creating the file using the built-in editor is
explained further below in this section. Alternatively, any standard
text editor such as Notepad or WordPad may also be used to create
the command file. However, the STAAD.Pro command file editor
offers the advantage of syntax checking as we type the commands.
The STAAD.Pro keywords, numeric data, comments, etc. are
displayed in distinct colors in the STAAD.Pro editor. A typical editor
screen is shown below to illustrate its general appearance.
iii
To access the built-in editor, first start the program and follow the
steps explained in Sections 1.3 and 1.4 of the Getting Started manual.
You will then encounter the dialog box shown in the following
figure. In this dialog box, choose Open STAAD Editor.
iv
At this point, the editor screen will open as shown below.
Delete all the command lines displayed in the editor window and
type the lines shown in bold in the various examples in this book
(You don’t have to delete the lines if you know which to keep and
where to fill in the rest of the commands). The commands may be
typed in upper or lower case letters.
For your convenience, the data for all the examples presented in
this manual are supplied to you along with the program CD. You
will find them in the folder location
X:\spro2007\staad\examp\us
where
"X:" is the drive, and "spro2007" is the name of the installation
folder if you happened to go with the default during installation.
The example files are named in accordance with the order they
appear in this manual, namely, examp01.std for example 1,
examp08.std for example 8, and so on.
v
The second part of this book contains a set of verification
problems which compares the analytical results from the program
with standard publications on the subject. They too are installed
along with the examples.
To view their contents in the editor, open the file you are
interested in. Then, click on the STAAD editor icon, or, go to the
Edit menu, and choose Edit Input Command File, as shown below.
vi
A new window will open up with the data listed as shown here:
To exit the Editor, select the File | Exit menu option of the editor
window (not the File | Exit menu of the main window behind the
editor window).
