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Easy way to learn staad pro
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Workshop On Structural Analysis And
Design Using Staad.Pro
Civil Engineering Department National Institute of Technology, Warangal (AP)
March 2013
BySHASHIKANT GADAG
Contents• Introduction to STAAD Pro • Terminology and Notations• Getting to Know the STAAD.Pro GUI• Introduction to Modelling• Material Properties and Section Properties• Supports,Loads and Load Combinations• Analysis and Post-processing• Modelling Complex Geometries• RC Building Analysis• Analysis for Seismic Loads
What STAAD Pro means???STructural
Analysis
A
D
ProPro
nd
esign
gram/ fessionals
About STAAD Pro.• World’s leading Structural Analysis and Design Software.• Based on FEM & FEA• FEM- Finite Element Method• FEA- Finite Element Analysis
What is an Analysis????
Calculation of the Response of Structures to Actions
Why to Perform an Analysis????
To Calculate1.Stress Distributions2.Natural Frequencies3.Displacements4.Critical Buckling Loads etc…
Terminology and Notations
• Coordinate Systems Global Coordinate System Local Coordinate system• Units• Types of Structures Space structure(3D) Plane Structure(2D) Floor Structure(2D or 3D) Truss Structure(2D or 3D)
• Types of Members(1D) and Elements(2D & 3D) Truss Members Frame Members Plates and Shells Solids• Material Properties Young’s Modulus Poisson’s Ratio Density Damping Ratio• Stiffness Method
Conti…
• Typical Load Calculations
The Dead Load calculations are based on densities of materials and are assumed to be:
Material Unit Weights (kN/m3)
Brick Work 20
Plain Concrete 24
Reinforced Concrete 25
Earth 16-18
Mortar, Plaster 20
Steel 78.5
Water 10
Live loads are taken from IS:875 part-2 and are taken as 2 kN/m2 for floors of residential buildings,3 kN/m2 for floors of commercial buildings,1.5 kN/m2 for horizontal roofs with access, 0.75 kN/m2 for roofs with no access.
Getting to Know the STAAD.Pro -GUI
• Main Menu• Toolbars• Mode bar
Main Menu
• File
• Edit
• View
• Tools
• Select
• Geometry
•Commands
• Analyze
• Mode
• Windows
• Help
Structure Toolbar
Toolbars
Structure Tools Toolbar
Rotate Toolbar
View Toolbar
Geometry Toolbar
Generate Toolbar
Results Toolbar
Selection Toolbar
Mode Toolbar
Labels Toolbar
Steel Design Toolbar
File Toolbar
Print Toolbar
Mode Bar
Introduction to Modeling
Following are the steps involved in Modeling and Analysis:
• Create a new structure
• Customize the gridlines for creating nodes and beams
• Add nodes and beams
• Define material properties
• Define section properties and assign to members
Conti…
•Define supports and assign to nodes
• Define loads and assign to nodes and/or
members
• Define type of analysis
• Choose post analysis print commands
• Analyze the structure
• Study the results
Material Properties & Section Properties
Mode: Modeling General Materials• Define and Assign Material Properties
• Define and Assign Section Properties
Mode: Modeling General Property
Toolbar: Structure Tools
Property Page
Property Section Database
Supports, Loads and Load Combinations
Mode: Modeling
• Define and Assign Supports
General Support
Toolbar: Structure Tools Property Page
Type of Supports Restraints Releases
FIXED FX,FY,FZ,MX,MY,MZ ---
PINNED FX,FY,FZ MX,MY,MZ
ROLLERS RESTING ON HORIZONTAL PLANE
FY,FZ FX,MX,MY,MZ
• Loads and Load Combinations Mode: Modeling General Load
Load PageToolbar: Structure Tools
Conti…
Analysis and Post-processing
• Choose Analysis Type
• Choose Post Analysis Print Command
• Analyze the Structure
Mode: Modeling Analysis/Print Analysis
Mode: Modeling Analysis/Print Post-Print
Main Menu: Analyze Run Analysis (Shortcut Ctrl+F5)
Modeling Complex Geometries
• Structure Wizard
• Select Model Type- Different types are available• Double click on the model required• Define Parameters/Select Parameters dialog box• Go to File(Main Menu) – Merge Model with Staad pro Model
Conti…• Translational Repeat
Mode: Main Menu Geometry
Translational Repeat
• RC Building Analysis• Analysis for Seismic Loads
Thank you!