- INTRODUCTION TO STAAD.Pro
- HISTORY OF STAAD.Pro
- TYPES OF STRUCTURE
- STAAD WINDOW
- TOOLS USED
- VARIOUS TYPES OF CURSORS
- PAGE CONTROL IN VARIOUS MODES
- MODEL GENERATION
- ASSIGNING PROPERTY
- ASSIGNING LOADS
- A STRUCTURE can be defined as an assemblage of elements. STAAD is capable of analyzing and designing structures consisting of both frame, and Finite elements. Almost any type of structure can be analyzed by STAAD.
Frame elements – Beam elements – 2 nodes
Finite elements – 1.) Plate – 3 or 4 nodes
2.) Solid – 4 to 8 nodes
- In case of STAAD
Node becomes Joint it has a number and xyz coordinates
Beam becomes Member it has a number and nodes at its ends
Plate becomes Element it has a number and node at its corners
TYPES OF STRUCTURE
- A TRUSS structure consists of truss members which can have only axial member forces and no bending in the members
- A PLANE structure is bound by a global X-Y coordinate system with loads in the same plane
- A SPACE structure, which is a three dimensional framed structure with loads applied in any plane, is the most general.
- A FLOOR structure is a two or three dimensional structure having no horizontal (global X or Z) movement of the structure [FX, FZ & MY are restrained at every joint]. The floor framing (in global X-Z plane) of a building is an ideal example of a FLOOR structure. Columns can also be modelled with the floor in a FLOOR structure as long as the structure has no horizontal loading. If there is any horizontal load, it must be analyzed as a SPACE structure.
VARIOUS TYPES OF CURSORS
it is a digram just to show how the whole process of design and analysis works
MODEL GENERATION(creation of a beam if say basic)
- There are basically 3 methods of generating a model
1.Snap node method
3.Copy paste method
- Out of these three methods most commonly used is copy paste method
- By using these three methods a structure of any geometry can be created
- STAAD.Pro also contains a command wizard which is its library of structures such as frames , trusses are present which can be merged with the STAAD.Pro model
Assigning a property means to provide dimensions such as width, thickness etc to beams columns slabs etc
- Any structure is subjected to basically these types of loads-
- Dead load
- Live Load
- Dead load includes the self weight of the structure while live load consists of superimposed load.
- In addition to a structure is also subjected to wind and seismic or earthquake forces
- While designing a structure subjected to wind and earthquake forces we also have to provide definitions along with various load cases
- After creating various load cases we have to assign them to the structure . For this we have to first select that part of the structure on which load has to be assigned and then assign it to that part
- In case of structures subjected to wind and earthquake forces wind and seismic definitions need to be provided.
- After providing these definitions only the load cases should be entered.
- After all the above stated steps a structure has to be analyzed.
- Analysis of a structure means to find out the reactions and displacements and deflections at various nodes of a structure.
- After analysis we are able to see shear moment and deflection for each member.
After performing analysis another window which contains a report of analysis gets opened . This window shows the warnings and errors which might have occurred.
- In the post processing mode we are able to see the reactions, displacements, deflections, shear force and bending moments for various members