Week 2 Challenge

AIM :

1.1 How will you assign Circular section to column?

Introduction :

• Column are the vertical member in the Structure that can be of varying size in dimensions
• The circular section of column are provided at the upper floor of the building for the better load carrying and access purpose

Procedure :

• Create the model in the staad pro that can be a column
• Go to properties in that Define parameters
• Assign the circular shape of the column
• The radius of the circular is given

1.2 : How will you assign Unit system to a .std model file?

ANS :

• To Assign unit system in the staad pro
• Go to file menu and then settings
• open the structural settings
• Change the dimensions as the required units

1.3: What are the parameters to be specified while using “Bay Frame” option?

ANS :

• To create the parameter of the design by Bay frame
• By clicking on the Structural wizard option
• Click on the frame model option
• click on the Bay frame option
• Enter the parameters like the length , breadth , height and the bay frame along the length , breadth and height

1.4: Name few codal standards incorporated in STAAD Pro software.

ANS:

• In Staad pro the Codal standards are incorporated for the Steel , Concrete , Aluminum.
• For the Steel the codal provision are IS 800 , IS 800 : 2007 , IS 800:2007 WSD , IS 801
• For the concrete the Codal provision are the IS 456 and IS 13920 for the Seismic Design

1.5: How will you specify the design compressive strength for a RCC section?

ANS :

• Go to the Design option
• Click on the define parameter
• In the design Parameter the FYLD Compressive strength of RCC section is Given as 25000 KNm

2:1: State the “Input” steps involved in RCC design.

ANS:

Steps Involved in RCC design are

1. Geometry : The Node location and the node spacing are given
2. Properties : Specify the Sectional properties of the section
3. materials : Specify the properties of the material
4. Specifications : The specifications are given
5. Support : The end support are to be given
6. Loading : Need to provide the loading pattern and the loading combination
7. Analysis : Need to Analysis the modal and all the Input Specification are Given
8. Design : Finally the Design are to be done

2:2: Explain the difference between Fixed and Enforced support condition in STAADPro

ANS :

• In STAAD, support displacement loads cannot be applied to such models when the FIXED type of support is specified.
• For the ENFORCED BUT type, there is no provision to specify a spring constant.
• The only choices, which are built into the program, are - zero stiffness

3:1.Explain the steps involved in analysis of a model using STAAD Pro sequentially.

ANS:

The steps involved in analysis of a model are

• Before Analysis the model the load pattern and the load combination are to be provided to the model
• Then go to Analysis option
• Define Command
• Select the data for the analysis of the model by perform analysis , P delta analysis ,Nonlinear analysis
• It depends upon the support conditions

3.2. Explain the two ways in which a structural framework/model can be created in STAAD Pro software.

ANS:

The two ways to model the a structural framework is

1. Creating model by Node by Node in grid table
2. Creating model by Bay frame by

3.3. Elaborate the different support conditions in STAAD Pro.

ANS :

• Fixed Support
• Pinned Support
• Enforced Support
• Enforced But
• Multiliner Springs
• Tension/Compression only springs
• Foundation

3.4. How will you extract the stress distribution for a staircase slab?

ANS:

• The Design of Staircase slab is done by Node placement
• The creation of plate is used in staircase
• BY using Generate mesh
• The stress distribution for the staircase slab is done by viewing color in the slab of the design

3.5. Explain the different ways to view SFD & BMD in STAAD Pro.

ANS :

• After completion of the Design the staad pro will automatically provide the BMD & SFD
• By Entering to the Post processing process click on ok
• By clicking the beam results Deflection command
• Reaction click the beam deflection

Practical

1. Analyze the following structural elements and validate the results
2. Simply Supported Beam
3. A Simply supported beam with two point loads symmetrically placed
4. Span L = 20m
5. Load P = 50kN each
6. Both P located at 5m from each support

B.Fixed Beam

1. Span L = 16m
2. Uniformly Distributed Load w=9kN/m

ANSWER:

AIM:

• To draw a 20m length of simply supported beam with two pint loads symmetrically placed and load p = 50 kN each,both P placed at 5m from each support.
• And a 16m length of fixed beam with uniformly distributed load w = 9 kN/m

Procedure:

1. Simply Supported Beam.

• Open the staad pro software
• Define the units as per below image

• Add beams as per below image

• A graph seen in the window as per below image

• Then draw 20m length line with node
• And the concrete material with 0.23 x 0.23 thickness as per below image

• Then add the supports :- simply support to each node

• then add Load P = 50kN each
• Both P located at 5m from each support

• Then select the loads & defination
• Add load case details

• Then run the analysis.
• There is no error in the file see attached the below image.

• See the load case displacement

1. Fixed Beam.

• Draw the 16m length beam
• Define the the support as fixed

• Then add the concrete material with 0.23 x 0.23 thickness as per below image

• Then assign the loads

• Then run the analysis.
• There is no error in the file see attached the below image.

• See the load case displacement

• See the load case 2

• See the Reactions

RESULTS:

• Simply Supported Beam and Fixed Beam are drawn successfully