Shopping complex in New Delhi

Institute for Steel Development & Growth – India

Building use

Other

Country/Region

India

Overview

Beams and colums are all composite members. Carpet area is increased due to reduced cross-sectional area of column members.

Basic information (construction date, number of stories, gross floor area, adopted design code, engineer(s), Contractor(s), etc.)

Construction date: 2006-2009
Number of stories: 3
Gross floor area: 12,600m2
Adopted design code: Bureau of Indian Standards Code IS: 800, IS:11384, IS:456
Engineer(s): Hitesh Kumar and Shiladitya Chanda
Contractor(s): Hindustan Steelworks Construction Limited

Issue and/or innovation

Provision of fully steel encased concrete columns provided a concrete look to the building as it went well with the overall architectural look of the building.

Reason for composite solution

For faster construction and aesthetic look.

Specific solution/technical details

The building has been modeled as a 3-D frame with rigid joints between the elements of the frame. The floor slabs have not been included in the 3-D model. The frame of the building was analyzed with Steel-Concrete Composite option keeping the other structural elements with RCC or steel as required achieving an optimum solution. The building has been conceived with common basement (about 84 meters x 36 meters in plan) and two separate super structures (about 30 meters x 36 meters in plan) identical and symmetrical to each other. One structurally separate corridor is provided in between these structural units as per architectural drawings.
The entire frame was analyzed using a modern software package. The frame was analyzed for different combination of worst possible loads on the structures. The ground floor and the basement floors are meant for car parking only. From 1st to 3rd floor, the planning of the building is more or less same. The ground floor is 3.9 meters high and all other floors are 3.5 meters high. The total height of the building is about 14.96 meters above ground and 6.6 meters below ground. For cladding, brick filler walls been considered.

Impact or effectiveness

Free spaces could be achieved resulting in better carpet area in the shopping floors as well as better maneuvering space for the basement car parks. Lesser depth of steel beams allowed better head-room for provision of false ceilings in the shopping floors as well as better head rooms in the basement for cars.

References / Technical Papers Content

Teaching Resources for Structural Steel Design (Volume – 1 and 2) published jointly by Indian Institute of Technology, Madras Anna University, Chennai Structural Engineering Research Center, Madras Institute for Steel Development & Growth, Kolkata