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The IUP Journal of Structural Engineering

G+40 Tube in Tube RC Frame Structure in Different Seismic Zones: A Comparative Analysis

Article Details

Pub. Date	: Oct, 2021
Product Name	: The IUP Journal of Structural Engineering
Product Type	: Article
Product Code	: IJSE31021
Author Name	: Shubham S Mutagekar* and V D Gundakalle
Availability	: YES
Subject/Domain	: Science and Technology
Download Format	: PDF Format
No. of Pages	: 11

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Abstract

Tall structures have amazed the modern world from early stages. Tall buildings have been a great attraction for humans since the beginning of civilization, as evidenced by the pyramids of Giza, Egypt; the Mayan temples of Tikal, Guatemala; and the Qutub Minar of Delhi, India. Nowadays, there is a need for multi-storied buildings as the cities are getting overcrowded. In tall buildings, the lateral loads which act on the building resist the wind loads and earthquake loads by providing braced framing system. Bracing is widely used in tall structures; these are also called lateral load reducing system. Based upon the previous research, a G+40 RC tube in tube structure is analyzed along with a bracing system using the revised earthquake code IS: 1893 Part 1 (2016). The results like base shear, storey displacement and storey drift are analyzed and compared, and it has been observed that tube in tube structure without diagonal bracing system gave the best results in both X and Z directions for base shear, whereas the displacement slightly reduced after providing diagonal bracing for tube in tube structure in both X and Z directions for various zones.

Description

In the past few years, tubular structures have become a common feature in tall buildings. Tube structures are particularly suitable for all tall buildings. In tall buildings, lateral loads like seismic load and wind load play a predominant role. The concept of tall structures comes to mind due to increasing worldwide population. Due to advancement in civil technology, the concept of tubular structure is successful nowadays. Various types of tube structures were studied by several authors in the past, and the studies concentrated on tube structures with different bracing systems using X-bracing system.