Week 2 Challenge
1. 1. How will you assign Circular section to column?
A) Go to properties in that select define property select circle and give the radius for the member and assign the defined circle to the member created
2. How will you assign Unit system to a .std model file?
A)
While creating a model go to unit system and assign the units Go to geometry in that's elect input units and assign the units go to view menu in that select display options in that select structure units
3. What are the parameters to be specified while using “Bay Frame” option?
A) Go to the geometry tab in that select structure wizard in that select frame model in that select bay frame
Give the parameters like length,height,width,No.of bays along length,No.of bays along width
4. Name few codal standards incorporated in STAAD Pro software.
A) Euro code,ACl ,IS code
5. How will you specify the design compressive strength for a RCC section?
A) IN design select materials as concrete and select the code and then go to define parameters and select FC then specify the value
2. 1. State the “Input” steps involved in RCC design.
A)
Steps involved in Rcc design are
Geometry
properties
Materials
Specification
Support
Loading and Load combinations
Analysis
Design
2. Explain the difference between Fixed and Enforced support condition in STAADPro.
When the fixed type of support is specified , for those degrees of freedom which are to be treated as fully restrained,STAAD
assumes the displacements to be known quantites whose value is zero. Hence,these degrees of freedom are not considered
for the stiffness matrix and their value is not calculated
When the enforced type of support is specified , for those degrees of freedom which are to be treated as restrained,STAAD
assign a spring with a spring stiffness-translational stiff spring for translational restrained and rotational stiff springs for
rotational restraints . Those degrees freedom which are free to displace are assigned springs of zero stiffness.Hence for all the 6 degree of freedom at such supports,the displaement are calculated.The one which have a stiff spring with end up
having a negligible displacement and those with zero stiffness springs will have a displacement based on the structure geometry, properties and loading.
3. 1. Explain the steps involved in analysis of a model using STAAD Pro sequentially.
A) Read or study drawing (plan/Elevation/Section)
Input Geometry
Input properties
Input specifications/COnstants/Supports
Run analysis type
Specify analysis type
Input design standards
Input load and load combinations
Verify results
Design
Represent design as document and drawing
2. Explain the two ways in which a structural framework/model can be created in STAAD Pro software.
A) Node by node method
Grid method
Structural wizard method
3. Elaborate the different support conditions in STAAD Pro.
A)
- Fixed support
- Pinned support
- Fixed but support
- Enforced support
- Enforced but support
- Multilinear spring support
- Foundation support
- Inclined support
- Tension/Compression Only springs support
4. How will you extract the stress distribution for a staircase slab?
A) Create the staircase by using the nodes in the geometry panel
After creating the nodes assign the plate elements as the slab property after that define load case and calculate the area load acting on the staircase and apply load cases load combinations to the staircase slab and then create a mesh on the plate element
After that run the analysis and go to post processing mode and click on plate result option in that select stress distribution
result and chose the stress type accordingly and that stress distribution result is displayed
Maximum and minimum stress values are displaced
5. Explain the different ways to view SFD & BMD in STAAD Pro.
A) After completing the design and running the analysis software will provide the BMD and SFD
After the analysis is click on post processing mode and click ok go to deflection command and click the beam result in reaction command and click the beam deflection
Practical
1. Analyze the following structural elements and validate the results
A. Simply Supported Beam
a. A Simply supported beam with two point loads symmetrically placed
b. Span L = 20m
c. Load P = 50kN each
d. Both P located at 5m from each support
A) Open the new STAAD.Pro file
Create the nodes in geometry tab as per the question
Go to geometry tab select add beam and draw the beam by usinf beam cursor
Go to properties tab and select define and give the rectangular dimensions for the beam
Select the created beam and assign the rectangular property to the beam
Go to material tab give the materialas concrete
As per the question load P is located at 5 m from each support Go to geometry tab and nodes at 5m and 15m
Go to support tab and create a enforced but supportand click on add and add the support to the beam using cursor
Go to loading add the load cases
Assign the loads fto the beam using use cursor to assign
Go to analysis tab and select analysis command and do perform analysis
Run the analysis
B.Fixed Beam
a. Span L = 16m
b. Uniformly Distributed Load w=9kN/m
A) Open the new STAAD.Pro file
Create the nodes in geometry tab as per the question
Go to geometry tab select add beam and draw the beam by usinf beam cursor
Go to properties tab and select define and give the rectangular dimensions for the beam
select the created beam and assign the rectangle property to the beam
Go to material tab give the materials concrete
Go to support tab and create a fixed support and click on add and add the support to the beam using cursor
Go to loading tab add the load cases
Assign the loads to the beam using Assign to select beam
Go to analysis tab and select analysis command and do perform analysis
Run the analysis