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

Ans.

Aim:-

To design and analysis of G+3 hostel building in ETABS and Foundation in CSI SAFE

Introduction :-

• The procedure and anaylsis and design of given building will depend on the type of building, its complexity, the number of stories etc.
• First architectural drawings of the building are studied, structurl systems is finalised sizes of structural members are decided and brought to the knowledge of the concerned architect.
• The procedure for structural design will involve some steps which will depend on the type of building and also its complexity and time availabel fr structural desgn.
• Following data is need before designing the structural design:-

1.  A set of architectural drawings
2.  Soil investigation report
3.  Location of place or city in order to decide wind and sesimic load condition
4.  Data for lifts, water tank on top of the building and roof loadong ad its features.

Procedure :-

• Open ETABS software
• Click on file option and select new model

• Use built-in setting as shown below

• After setting model, template tab will open, click on grid only and press OK
• Do all grid setting as shown below

• Add stories upto 3 stories as shown below

• now, plan view are visible on etabs screen, as shown beow
• Now, open view in 3D view

• Open define properties and select material

• After selecting material properties, new tab will appear, add new material

• Now, add maertial type as concrete and grade as M25
• Check materila property data

• Add material bar as rebar and grade as HYSD grade 500
• Chcek material property as shown below

• Add material bar as rebar and grade as HYSD grade 415
• Check material property as shown below

• Material assign is shown below

• Select section properties and click frame section

• After selection of frame, new tab will open in that add new property as shown below

• After slecting add new property, new tab will appear
• In that tab selct rectangular shape tye as concrete

• Next the frame section property data will be visible, in tht add beam size B450X650 
• select mdify /show reabr option as shown below
• After selecting the modify/show rebar option, new tab will appear, in that we select the design type as design only
• Select longitudnal bar as HYSD450 and confinemnet bar as HYSD415 grade

• Add column size as 450X650

• Again add column 650X450

• Select slab section properties

• Slab properties will be visible, in that modify/show property option

• After selecting the modify/show property option, new tab will appear
• In that we need to put slab name as Slab125, 125 is the thickness of slab
• grade of concrete as M25
• Click Ok

• Now we will take slab thickess seperately for staircase of 200mm 

• Assign slab poperties

• Add column using quick draw option

• Add beam using quick draw option

• Add slab using quick draw floor/wall option

• Now go to base plan, and select al base joints
• Select restrained joint option, as shown below

• Fix joint and click on apply, then click close button as shown below

• Select load apattern from define option

• Now, add dead load, live load,brick load,and earthquake load

• Selct eqx and click on modify lateral load, new tab will appear
• In that select X direction as per IS-800-2002, sesmic zone factor for Guwahati, Assam is taken as 0.36, as mentioned below
• Slect site type as III
• Click OK
• Similarly, do this for all sesimic load such as eqx+, eqx-, eqy+, eqy- and eqy