Analytical study on behavior of External Shear Wall and Internal Shear Wall as lateral load resisting systems for retrofitting a ten storey building frame

Author(s): S.V. Venkatesh, H. Sharada Bai an, S.P. Divya
Paper category: Conference
Book title: Concrete Repair, Rehabilitation and Retrofitting III (ICCRRR)
Editor(s): M.G. Alexander, H.-D. Beushausen, F. Dehn, P. Moyo
Print ISBN: 978-0-415-89952-9
Publisher: Taylor & Francis Group
Pages: 462- 463
Total Pages: 2
Language: English

Abstract: 
Earthquakes are natural phenomena under which disasters are mainly caused by damage to or collapse of buildings and other man-made structures. Many existing buildings lack the seismic strength and detailing requirements as per standard codes of practice. An existing structure may need upgrading or retrofitting if the structure was initially not designed and constructed to resist an earthquake i.e. designed only for gravity loads. The present study consists of a comprehensive three-dimensional elastic analysis using Response Spectrum Method (RSM) of a ten storied building structure wherein External Shear Walls and Internal Shear Walls are considered as Lateral Load Resisting Systems (LLRS) as possible measures of retrofitting of structures. The behavior of the building in which LLRS are employed is compared with moment resisting Bare frame (without any LLRS). The building located in zone V (Most sever) of seismic zones of India, is subjected to seismic loads, non-seismic loads and their combinations to arrive at the critical deformations and forces in the structure. The following 3D frame models are considered for analysis.

1. Basic Single bay—three bays Moment Resisting Frame.
2. Frame as in (1) with External Shear Wall.
3. Frame as in (1) with Internal Shear Wall.

The study reveals that both External Shear Walls and Internal Shear Walls effectively reduce the lateral deformation due to earthquake loading but latter are more effective as LLRS. However External Shear Walls can be employed when it is difficult to disturb the interior of the building during retrofitting.

Online publication: 2014
Publication Type: abstract_only
Public price (Euros): 0.00