Project 1

Question-1. Design a multi-storey Residential Building located in Bangalore using STAAD Pro Connect Edition. The specification must be as follows:

Building floors	G + 6 + R
Plan dimension	B = 25m , L = 16m
Storey Height	h = 3.5m
Soil	Hard soil
Use	Residential Purpose
Safe Bearing Capacity	180 kN/m2
Maximum slab thickness	150mm

Assume suitable sections for structural elements. Follow IS456, IS1893 and IS 875

1. Prepare a Design Basis Report for the project
2. Create structural model using STAAD Pro Connect Edition
3. Prepare DL, LL, WL and EQL load calculations as per IS 875 standards
4. Design slab element using MS – Excel
5. Design beam and column element using STAAD RCDC. Attach the design calculation report.
6. Design Foundations using STAAD Foundation.
7. Prepare bar bending schedule for beam and column using STAAD RCDC
8. Attach necessary sketches and drawings wherever required.
9. All stipulations, assumptions and design parameter must adhere to Indian Standards.

Answer:

AIM: Aim to the question is to design a multi story- Residenstial building which is located in baanguluru using the STAAD Pro Software.

INTRODUCTION & OBJECTIVE:

GIVEN DATA: Building Ploors G+6+R

• Plan Dimension: B = 25m
• l = 16m
• Story Heigth h= 3.5
• Soil : Hard Soil.
• Use: Residential Purpose:
• Safe Bearing Capacity 180kn/sq.m
• Maximum Slab Thisckness: 150mm
• Assume the size of the beams: 0.3x0.45m
• Assume the Size of the column 0.7x0.7m

LOAD CALCULATION:

Load Calculation:

• Daed Load IS 875 Part -1
• Dead Load on Floor:

Dead weight due to slab = 0.15 X 25

=3.75 KN/sq.m

= Partitions : 1.5 KN/sq.m

= Floor finish : 2.5 KN/sq.m

= Miscellaneous : 1 KN/sq.m

=Total Floor Load = 8.75 KN/sq.m.

Dead Load on Roof (IS 875 Part-l):

• Dead Load on roof slab = 3.75 KN/sq.m.
• Insulation and Water proofing = 0.5 KN/sq.m.
• MEP Services = 0.5 KN/sq.m.
• Miscellaneous = 0.5 KN/sq.m.

Total Roof Load = 5.25 KN/sq.m

Live Load (IS 875 Part ll):

• For Residential Building Live Load = 3 KN/sq.m.
• For Roof Lie Load = 1.5 KN/sq.m.

Wind Load Calculation (IS 875 Part-lll):

(l) Design Wind Speed :

We know that:

Vz = VbXk1Xk2Xk3Xk4,

where:

Vb = Basic Wind Speed (m/sec).

k1 = Risk Co-efficient (IS 875 Part-lll:2015 Table 1).

k2 = Terrain Roughness and height factor.

k3 = Topography factor (IS 875 Part-lll:2015 Clause 6.3.3).

k4 = Importance factor for cyclic region.

So,

Vb = 33 m/s (Bangaluru) IS 875 Part-lll.

k1 = 1.

k2 = 1.15 For height 30m (Category-l).

k3 = 1

k4 =1

Therefore :

Vz = Vb x k1 X k2 X k3 X k4

Vz = 33 X 1 X 1.15 X 1 X 1.

Vz = 37.95 m/s.

(ll) Wind Pressure (Pz):

Pz = 0.6 X Vz ^2.

Pz = 0.6 X (37.95)^2.

Pz = 864.121 N.

Pz = 0.864KN

PROCEDURE:

STEP-1

According to given data first we have to design a model frame

So in order to model the building frame first we need to open the STAAD Pro software Create a new file and then open file after that will be an option called structure wizard just click on that option in order to create the model frame just as shon in the below given screenshoot.

STEP-2

now click Defoultstp-Stwizard in the dialog box there will be an option called Model type in that select Frame models and in that select the Bay frame option and change the desired units justt as shown in the below given image.

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STEP-3

Select the Parameters fill all details

STEP-4

Now We can see the Model Frame is Created.

STEP-5

Now We can Assign the Material. and the Section Properties

STEP-6

And then Assign it to the View Just As Shown in the below given image:

STEP-7

Now Add the Beam & column by add Properties.

STEP-8

Now Assign the column and Beam to the Model.

STEP-9

After Assigning the clumn and Beam We Add supports to the model.

For that we have to go to the elevation view select all the nodes of hte base level and then assign the Fixed support after addign it to the support pannel.

STEP-10

Now We check the model with 3d Rendering view:

STEP-11

Now We assign the load Applications

• Dead Load
• Live Load
• Wind Load
• Seismic Load.

STEP-12

Now Assign the load to the Selected beams just as shown in the below given image:

STEP-13

After this defining and assigning the superimposed roof load in order to add the roof load repeat the same procedure and add the roof just shown in the below given image.

STEP-14

Assign it to the selected beams just as shown in image.

STEP-15

Now we will adding the seismic Load to the frame.

go to seismic definition option. with the IS Code 1893: 2016.

Add self weight

Member Weight:

STEP-16

After that we will defining the wind load in order to define assign the wind load go to the load case detail.

STEP-17

And Now All loads We have applied here successfully to the building and now add the analysis command and run the analysis

After doing the analysis of the model, we will designing the Beams first using the advance Concrete Designier (RCDC)

STEP-18

So in order to design the Beams using the RCDC got of the Designing tab there will be an option called RCDC juct click om that option and Then there will be a new window of RCDC Opens in that window fill out the necessary information and Click on the Create New Project Option Just as Shown in the Below given Image:

STEP-19

After Clicking create New Project to analyse all the structural elements after analysing the elements there will be

RESULT: I Completed the design of a multi story- Residenstial building which is located in baanguluru using the STAAD Pro Software.