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A Study on effect of Connecting Beams in a Twin Tower Structure

A Study on effect of Connecting Beams in a Twin Tower Structure The objective of this study is to ensure the convincing use and perfect positioning of connecting beams in between twin tower structure subjected to lateral loads. For this, a three dimensional analysis was performed for the twin towers considered without associating connecting beams and in-contrast introducing connecting beams between the two towers at different floor levels. Accordingly, eight alternatives were investigated including the one without connecting beams subjected to wind and earthquake. The wind analysis including P-Δ effect with a basic wind speed of 50 m/sec and earthquake analysis in Zone II were performed for both static and dynamic conditions. The structure considered for investigation is consisting of four residential units in each floor, with dimensions 20 m × 40 m × 54 m. The study reveals that the ‘lateral sway’ at the top of structure against wind is within the permissible limit only in case of all floors joined with connecting beams. Similarly, the ‘storey drift’ is also satisfied as per the code requirements against earthquake. Hence, it is recommended that all the tall structures proposed should be investigated for both wind and earthquake. The isolated towers can be joined with connecting beams as appropriate in order to satisfy the serviceability criteria, i.e. lateral sway and storey drift of the current codes of practice. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of The Institution of Engineers (India): Series A Springer Journals

A Study on effect of Connecting Beams in a Twin Tower Structure

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Publisher
Springer Journals
Copyright
Copyright © The Institution of Engineers (India) 2020
ISSN
2250-2149
eISSN
2250-2157
DOI
10.1007/s40030-020-00482-0
Publisher site
See Article on Publisher Site

Abstract

The objective of this study is to ensure the convincing use and perfect positioning of connecting beams in between twin tower structure subjected to lateral loads. For this, a three dimensional analysis was performed for the twin towers considered without associating connecting beams and in-contrast introducing connecting beams between the two towers at different floor levels. Accordingly, eight alternatives were investigated including the one without connecting beams subjected to wind and earthquake. The wind analysis including P-Δ effect with a basic wind speed of 50 m/sec and earthquake analysis in Zone II were performed for both static and dynamic conditions. The structure considered for investigation is consisting of four residential units in each floor, with dimensions 20 m × 40 m × 54 m. The study reveals that the ‘lateral sway’ at the top of structure against wind is within the permissible limit only in case of all floors joined with connecting beams. Similarly, the ‘storey drift’ is also satisfied as per the code requirements against earthquake. Hence, it is recommended that all the tall structures proposed should be investigated for both wind and earthquake. The isolated towers can be joined with connecting beams as appropriate in order to satisfy the serviceability criteria, i.e. lateral sway and storey drift of the current codes of practice.

Journal

Journal of The Institution of Engineers (India): Series ASpringer Journals

Published: Dec 26, 2020

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