staad pro indroduction

21
Introduction to Analysis Using STAAD Pro Hemant Gor ([email protected])

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Page 1: Staad Pro Indroduction

Introduction to Analysis Using STAAD Pro

Hemant Gor ([email protected])

Page 2: Staad Pro Indroduction

Agenda Analysis Options

Analysis type 2D,3D,Truss and Floor ( Grillage) Modelling

The Modelling Process involves providing Input Modelling using AutoCAD

Importing DXF (Drawing Exchange Format File into STAAD)

Loading, Supports, Constraint and Properties Postprocessing

Understanding the Output of Analysis

Page 3: Staad Pro Indroduction

Analysis Options In STAAD Pro Following four Structural forms

can be analysed based on Degrees of Freedom (DOF) of Each Joint Space ( Each Joint having 6 DOFs,

Full 3D analysis) Plane (It is In-Plane Analysis, each

joint having 3 DOFs, two displacements and one rotation

Floor (It is Out-of-plane Analysis, Each joint having 3 DOFs, One Displacement and One Rotation

Truss ( Members can take only Axial Forces i.e. Compression or Tension)

Page 4: Staad Pro Indroduction

Generating Input file STAAD Pro Provides

two options for generating Input Structure Graphical User

Interface (GUI) The Text File ( having

file Extension STD) 2D Grid to Add

Member using SNAP Option

Page 5: Staad Pro Indroduction

STAAD Pro Overview Modelling

Geometry General Analysis Design

Post Processing Joint Displacements / Support Reactions Member Forces Element Forces Mode Shapes / Deflected Shapes

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Geometry Add / Edit Joint Co-

Ordinate Add Beam Using SNAP

Options JOInt COOrdinates

1 0 0 0;2 10 0 0;n x y z;

MEMber INCidencesm i_node j_node1 1 2;

Page 7: Staad Pro Indroduction

Geometry Copy / Paste Option for

JOINTS/MEMBERS ( Click on Reference Point, Similar to AUTOCAD reference Pt.)

Translational Repeat Circular Repeat

Page 8: Staad Pro Indroduction

General Assigning Property

Steel Sections Prismatic Sections Local Axis Orientation ( Beat Angle)

Specification Load & Definitions Material

Young’s Modulus, Poisson’s Ratio, Density, Coefficient of Thermal Expansion

Page 9: Staad Pro Indroduction

General - Property

Member 3 is having Joint 5 as START Joint and Joint 6 as END Joint

For Beams Local Y is along Global Y

Rectangular Section Beam Local Axis

Blue - Local X Red - Local Y Green – Local Z

Cross Section Dimensions

YD Dimension along Local Y Axis

ZD Dimension along Local Z Axis

YD

ZD

Local Z

Page 10: Staad Pro Indroduction

General - Spec

Specification Node (Constraints)

Master Slave ( Master Node and Slave Nodes)

Rigid ( All Six DOFs are Same)

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Spec - Beam

Specification Beam

Moment Release Tension/Compression

only Member Offset Truss

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Support – Restraint to Joints Boundary

Condition to Joints Pinned Fixed

Page 13: Staad Pro Indroduction

Support – Fixed But Roller Support

Node_ID FIXED BUT FX FZ MX MY MZ

Spring Supports For Pile Foundations Node_ID FIXED BUT KFY ??? FX FZ MX MY MZ

Page 14: Staad Pro Indroduction

Loads & Definitions Primary Load Cases

First Define Load Case

Load Application Self Weight Joint Loads Member Loads Element Loads Earthquake Loads

Page 15: Staad Pro Indroduction

Primary Load Case – Joint Loads Application of Forces and

Moments in Three Global Directions at Joint

CommandJOINT LOAD1 FX 10 FY 20 FZ 30 MX 40 MY 50 MZ

60

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Joint /Member /Area /Floor Loads

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Primary Load Case – Member Load Uniformly Distributed Force ( Uniform Force) Uniformly Distributed Moment (Uniform Moment) Linear Varying Load Triangular Load

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Member Load – Concentrated Force

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Load Combination

Load Factors

Primary Load Cases

Load Combination No

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Perform Analysis

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Commands