Project 2_Design & Analysis of a Hostel building at Guwahati, Assam

AIM:
⦁ To design and analysis of G+3 hostel building in ETABS and Foundation in CSI SAFE.

PROCEDURE:
⦁ In order to design and analyse the hostel building first thing that we have to do is to open the ETABS software.
⦁ After opening the ETABS software there will be an option called New model click on that option.
⦁ After clicking that option there will be a dialouge box named as Model Initialization and in that dialouge box fill the necessary data regarding the codes that we are going to use to design the given hostel building just as shown in the below given image.

⦁ New model has been opened,so after opening the model now we have to edit the story data and the grid data accordingly.
⦁ After that there will be another dialouge box named as New Model Quick Templates,in that dialouge box there will be another option called Custom Grid Spacing check on that option after that there is another option called Edit Grid Data

⦁ And now there will be another dialouge box named as the Grid System Data,in that dialouge box provide the grids in both the direction according to the give architectural plan.
⦁ After adding the grids now we will be adding the stories as this building is G+5 building now add the stories there is a dialouge box named as the New Model Quick Templates,in that dialouge box there will be another option called Custom Story Data check on that option after that there is another option called Edit Story Data.
⦁ After this there will be another dialouge box named as the Story data,in that dialouge box edit the number of stories and the stories height and other relevant data.

⦁ After this now we will be defining the Materials and the Section Properties.
⦁ So in order to assign the materials we first need to go to the Define menu then there will be another option called Material Properties click on that option.
⦁ After clicking on that option there will be a dialouge box named as the Define materials in that dialouge box there will be an option called Add new material.
⦁ After that there will be another dialouge box named as the Add New Material Property in that dialouge box fill the all appropriate data in that dialouge box.
⦁ After that there will be another dialouge box named as the Material Property Data in that dialouge box fill the appropriate data that we need in designing purpose.
⦁ In that dialouge box name the material as M25 and all the other data

⦁ After that there will be another dialouge box named as the Material Property Data in that dialouge box fill the appropriate data that we need in designing purpose.
⦁ In that dialouge box name the material as M25 and all the other data

⦁ After that define the material property for HYSD500.

⦁ Now that all the materials have been added in the list now we have to define the section properties.
⦁ So in order to define the section properties just go to the Define tab there will be a drop-down list and in that list there will be an option called Section properties click on that option after that there will be another drop-down list in that list there will be another option called Frame Sections just click on that option.
⦁ After this there will be a new dialouge box named as the Frame Properties,in that dialouge box there is an option called Add New Property.
⦁ Define the section property for beam and column.

⦁ Now we will be adding the slab, and to add the slab first do to the Define menu then there will be a drop-down list in that list there will be an option called Section Properties.
⦁ After this there will be another dialouge box named as the Slab Properties,in that dialouge box there is an option called Add New Property.

⦁ And for the staircase we will be providing slab of 175mm thickness,and to add the slab for the staircase we will have to add the new property.

⦁ After adding the section properties now we will be drawing slab,columns and the beams in the given plan by using quick draw tool which is provided in the software.

⦁ And now we will be assigning the load patterns:

⦁ In order to assign the loads we need to go to the Assign menubar in that there will be a drop-down list in that list there will be an option called Shell Loads.
⦁ Then there will be a new dialouge box named as the Shell Load Assignment-Uniform,in that dialouge box Fill the all relevant data.
⦁ Now seelect the floors and add the Live loads to the structure.
⦁ Here we will be providing 2 KN/sq.m as a live load for the rooms and the dormitories of the hostel building according to the IS 875 part 2 for the residential buiding.
⦁ As per the IS code for the hostel building:

⦁ In order to define the mass source the first thing that we need to do is that go to the Define option and there will be a drop-down list.
⦁ After that there will be another dialouge box named as Mass Source and in that dialouge box there is an option called Add New Mass Source.

⦁ After assigning the mass source we will be assiging the Modal case.
⦁ And in order to do that first go to the Define menu then there will be drop-down list in that list there is an option called Load Cases.
⦁ Then there will be another dialouge box named as Load Cases in that dialolouge box there will be an option called Add New Cases.
⦁ Then there will be another dialouge box named as the Load Case Data,in that dialouge box fill the data just as shown in the below given image:

⦁ And now we will be defining the Diaphragm.
⦁ Firstly select all the floors and then assign Diaphragm.
⦁ So in order to assign the diaphragm,we first need to go to the option Assign then there will be a drop-down list in that list there is an option called Shell click on that option then there will be another list in that list there will be an option called Diaphragm.

⦁ And now we will be assigning the Response Spectrum.
⦁ In order to assign the response spectrum just go to the option Define and then there will be a drop-down list in that list there will be an option called Function just click on that after clicking on that option there will be another list in that list there will be an option called Response Spectrum.

⦁ After this there will be another dialouge box named as Define Response Spectrum Functions,in that dialouge box there will be an option called Add New Function and Choose Function Type To Add as IS 1893:2016.

⦁ And now we have to define the Load Cases, in order to define the load cases first go to the define option then there will be a drop-down list in that list there will be an option called Load cases.
⦁ Then there will be another dialouge box named as Load Cases in that dialolouge box there will be an option called Add New Cases.

⦁ And now we will be defining the load combinations.
⦁ And in order to define the load combination just go to the define tab there will be a drop-down list in that list there will be an option called Load combinations.
⦁ And then there will be a new dialouge box named as Load Combinations in that dialouge box there will be an option called Add Default Design Combos.

⦁ And now we will be checking the models if there are any warnings,if there are then correct the warnings and if not and go ahead with the planning.

⦁ Due to overstressed in beam we have changed the sizes of beams from B250x300 to B350x400.

LONGITUDINAL REINF:

⦁ SHEAR REINF:

SAFE SOFTWARE:

⦁ First we need to export the file from the ETABS software.
⦁ So in order to export the file from the ETABS software,first go to the option File then there will be an option called Export click on that then there will be another list in that list there will be another option called Story as SAFE V12.f2k File.

⦁ GIVEN DATA:
⦁ Column Size : 450 mm X 600mm and 600mmX450mm.
⦁ Soil Type : III.
⦁ Length of the piles : 10m.
⦁ Pile Diameter : 500 mm diameter.
⦁ Load Carrying Capacity of Pile: 280 KN.
⦁ Pile Cap - Slab type _ Matt of 50 mm thickness.
⦁ Column Cap - Slap type - Stiff of 500 mm thickness.
⦁ Pile length : 16 mm
⦁ Soil Bearing Capacity : 150 KN/sq.m.
⦁ So the first step is to define the materials and the section property.
⦁ After that there will be another dialouge box named as the Define Materials.
⦁ define the material properties

⦁ And now we will be adding the section properties.
⦁ So in order to add the section properties first we need to go to the define bar then there will be a drop-down list in that list there is an option called Section Properties click on that option from the list after that there will be another list named as the Slab Section.
⦁ So now we will be first adding the Pile Cap. So after clicking the option Slab Section then there will be another dialouge box named as the slab properties in that dialouge box there will be another option called Add New Property.

⦁ And now we will be adding the section properties.
⦁ So in order to add the section properties first we need to go to the define bar then there will be a drop-down list in that list there is an option called Section Properties click on that option from the list after that there will be another list named as the Slab Section.
⦁ So now we will be first adding the Pile Cap. So after clicking the option Slab Section then there will be another dialouge box named as the slab properties in that dialouge box there will be another option called Add New Property.

⦁ After that select the Quick areas around the point,then there will be a dialouge box and in that dialouge box give the shape of the object as Rectangle slab and give the properties of Pile slab.
⦁ Here we will be using three sizes of footing i.e 2.5X2.5m,6.5X4.5m and 6.5X6.5m.
⦁ Place all the columns using the above procedure in order to create different sizes of footing.
⦁ Now draw the slab using the quick tool and after creating the slab for the footing.

⦁ Run the analysis.

CHECK FOR PUNCHING SHEAR:

⦁ According to the IS code the punching value should not cross unit value,so in our case the punching shear value is less than the unit value.Hence OK.

RESULT:
⦁ G+3 Hostel building design is designed and analyse in ETABS.
⦁ The foundation is designed and analyse in SAFE.