Challenge

Week 2 Challenge

BBhavani Palle21 Jan 2024

1Q.

1. Assiging Circular Section to Column :

Create the model in the STAAD Pro
Draw the Nodes
Join this nodes by using Add beam option
Now Go to Properties
Select Define parameters as circular
Assign the Circular shape of the column

2. We have two ways in which we can assign the Unit system to a.std model file, they are:

At the initial stage.
In the middle of the project.

At initial stage itself we can assign the Units by clicking on the option Units system,
we can choose the units system as Metric and English and then can create a model

And the second way by which we can change the units system is while working on a model. So in order to change the unit system while working just go to the option File and then there will be an option called settings just click on that option then there will be an option to change the Units
Above are the two ways by which we can change the Units to a .std model file

3. The different parameters that to be specified while using "Bay Frame" options are listed below :

Length of the frame
Width of the frame
Height of the frame
Number of bays along length
Number of bays along width
Number of bays along height

4. The few codal standards incorporated in STAAD Pro software are listed below :

Euro Codes
American Codes
ACI Codes
IS codes
BS Codes
ASCE Codes
CAN/CSA Codes

5. To specify the design compressive strength for a RCC section ,below are the steps involved in designing the compressive strength of a RCC section :

First of all go to the Design panel.
After clicking the option design there will be a dialogue box named as the Steel Design-Whole Structure and in that dialogue box there will be another option called Define Parameters just click on that option
After that there will be another dialogue box named as the Design Parameters in that dialogue box there will be various options at the left side of the dialogue box from there only choose the option FC from the given options and FC is the compressive strength of a RCC section
Now specify the compressive strength here based on the grade of the concrete that we adopted for the project
And this is how we can specify the design compressive strength for a RCC section

2Q.

1. There are 8 "Input" steps that are involved in the design that are listed below :

GEOMETRY :
The geometry panel mainly deals with the initial part of the modelling in the STAAD Pro software. In the geometry panel we can draw the entire building using the geometry panel
The whole building is drawn within the geometry input as per the Architectural layout that we have received

PROPERTIES :
The Properties panel we assigned the various properties to the model like beams, columns, plates etc using this property panel

MATERIALS :
As the name suggest, we assigned different materials to the model using the material panel

SPECIFICATIONS :
In the specification panel we assigned the designations that to be followed while analysing

SUPPORTS :
In this panel we assign the base supports and the boundary conditions
All the things that are related to the loadings that we are going to assign in the model are done in this loading panel

ANALYSIS :
In the analysis panel, the computational analysis is executed
After doing the above steps we need to analyse the building for the safety of the building and this analysation of the building is to be done in the analyse panel

DESIGN :
The final step in modelling in STAAD Pro software is the Design
So after doing the analysis, the building sections are designed and the detailed reinforcement design according to the designing that we have done so far is extracted through design input

2.The difference between the fixed and Enforced support condition in STAAD Pro is discussed below :

FIXED SUPPORT CONDITION ENFORCED SUPPORT CONDITION

Fixed support are restrained in all six degrees of freedom. Enforced support are also restrained in all six degrees of freedom.
It does not contain spring constant It contains spring constant
When enforced force are defined, the software considers these as springs of high stiffness to oppose the fixed support.
It is only essential to define enforce support only when we are working for the models with plates or solids

Q.3

1.The steps that are involved in the analysis of the model using the STAAD Pro sequentially are discussed below :

So once the modelling have been completed and all the loads and the loads combinations have been assigned to the model, then comes the analysis part that is carried out in a sequential manner as discussed in the steps below
So the first thing that we need to do in order to do the analysis of the building, just go to the Analysis panel, and there will be an option define commands just click on that option
After that there will be another dialogue box named analysis/print command in that dialogue box, that dialogue box contains various options
And then select the method that is based on our project
And then click on the load list and make sure all the loads and load combinations are selected to
And then click on the option Add and close the dialogue box
Then run the analysis by clicking on the run analysis options

2. The two ways in which a structural framework/model can be created in STAAD Pro software are :

Node by Node method
Structure wizard method

NODE-BY-NODE:
So the first way to model a building by adopting node-by-node method
In this method we assign the nodes as per the architectural drawings that are placed manually by placing the co-ordinates
We can assign the nodes to our building by using the geometry panel
And these nodes can be transitionally repeated based on the building dimensions and the levels

STRUCTURE WIZARD:
So the second method is structure wizard method to model a building.
This method is an automated method as compared to the node-by-node method
We can create truss, frame and other structures just by using this method

3. The different support conditions in STAAD Pro are listed below :

Fixed Support Condition
Pinned Support Condition
Enforced Support Condition
Enforced But Support Condition
Multilinear Support Condition
Tension/Compression only springs
Foundation Support Condition

FIXED SUPPORT CONDITION :
Fixed support are restrained in all six degree of freedom ie FX,FY,FZ,MX,MY and MZ.

PINNED SUPPORT CONDITION :
Pinned support are restrained against translation i.e FX,FY and FZ but can rotate freely i.e MX,MY and MZ.

ENFORCED SUPPORT CONDITION :
Enforced support are also restrained in all six degrees of freedom but It contains spring constant.

4.The stress distribution for a staircase slab can be distracted by using the below procedure :

First of all create the nodes of a staircase using the geometry panel option
After creating the nodes assign the plate element as the Slab property. And then define load cases and calculate the area load that is acting on the staircase slab
After this apply the load cases and the load combinations to the plate element as the area load.
And then create a mess on the plate element
And after creating the mesh on the plate element go for the analysis of the model successfully, go to the Post-Processing mode option which can be present on the left side of the screen
After clicking on the option post-processing mode, click on the plate result option
After clicking the option there will be a drop-down list, in that list there will be another option called stress distribution result just click on that option
Under the option stress type choose the appropriate stress type accordingly
And then click on OK option
After clicking on the OK button, the STAAD Pro software will show the stress distribution result
And we can see the distribution result in the form of different colour zones which shows the maximum and the minimum stress values
Different colours shows the different results of minimum and the maximum stress distribution among the staircase
So this is how we can extract the stress-distribution for a staircase slab.

5.The different ways to view the SFD and BMD in STAAD Pro software has been discussed below :

In order to view the SFD and BMD in the software, first create the model using the nodes method in the geometry panel
After creating the nodes, go to the Properties panel and assign the properties to the model
And after that give the specification to the model according to the architectural layout
Assign the support conditions, after assigning the support condition to the model do the analysis
After completing the analysis successfully, now go to the post-processing mode
Then there will be another dialogue box, in that dialogue box there will be an option called beam result just click on that option
After clicking the option a tool pallete will appear on the screen
Here we can see different values such as Shear force or the Bending moments
So in order to see the shear force diagram, click on the Fy option and if we want to see the bending moment diagram then click on the option Mz
So this is the procedure by which we can see the Shear force and Bending moment diagram easily

PRACTICAL :

1.To analyse the simply supported beam and to validate the results.

PROCEDURE :

Open STAAD PRO Software

Go to geometry add nodes of beam of length 20m. And to draw the beam of 20m use the node-by-node option.
After creating the nodes now draw the beams

Go to property tab and define rectangular beam
After define click to add

Assign the material go to the material panel and then there will be another dialogue box in that dialogue box choose the desired material and assign it to the beam

Go to Support tab and create fixed support and add it.Then assign it

And now assign the point load of 50 KN and both the loads are located at the 5m from each support

Now the loads of 50 KN have been assigned at both the ends

After assigning the loads we will be doing the analysis, in order to run the analysis set the analysis method and run the analysis

The analysis has been done :

After doing the analysis go to the post-processing mode and select the load cases and check the SFD & BMD diagrams

2. AIM :

To analyse the Fixed beam and to validate the results.

PROCEDURE :

First of all draw the beam of length 16m.
And to draw the beam of 16m use the node-by-node option.
After creating the nodes now draw the beam

After creating the beam of 16m length now add the properties to the slab.
Add a rectangular section to the beam

Now click on the Add option and select the added section and choose option assign to the view and then click on the option Assign

Now after assigning the property, now we will be assigning the material as Concrete.

In order to assign the material go to the material panel and then there will be another dialogue box in that dialogue box choose the desired material and assign it to the beam

After assigning the material, now we have to assign the support conditions to the beam, its both ends are fixed