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131347

PERFORMANCE BASED SEISMIC ASSESSMENT OF BUILDINGS WITH CURVED SHEAR WALLS

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Last updated: 04 Jan 2025

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Abstract

  Nowadays, use of curvilinear architecture in tall buildings design is becoming increasingly important, so as structural engineers, we need to study these curved configurations from a structural point of view. This paper summarizes the results of a performance-based assessment of buildings with curved shear walls. The assessment was carried out using nonlinear static pushover analysis of Four (G+10 Typ.) concrete buildings which were divided into two categories. Each category included two buildings. The main parameter was the shape of the shear wall in plan and all the other parameters as the reinforcement ratio, the concrete volume, and position of shear walls were the same. A comparison was made between different plans with straight and curved shear walls. First, a modal analysis was carried out to determine the building's dynamic characteristics. Then an ASCE7-16-based [1] equivalent static procedure was performed to approach a fair design data based on ACI318-14 Code [2] and to determine the design base shear required by the ASCE7-16 [1]. After that the four buildings were subjected to a monotonic pushover loading in triangular vertical pattern using software PERFORM 3D [3]. The response modification factor, R, was then calculated based on the displacement ductility and the overstrength of the different buildings. The results of the analysis have shown that buildings with curved shear walls have larger response modification factor and are more energy dissipating than buildings with straight shear walls.

DOI

10.21608/erj.2019.131347

Keywords

shear walls, response spectrum, Pushover analysis, response modification factor, Ductility, Overstrength

Authors

First Name

Medhat

Last Name

M. Elmorsy

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Affiliation

Structural Engineering Department, Mansoura University, El-Mansoura, Egypt

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First Name

Ahmed

Last Name

A. Ghaleb

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Affiliation

Associate Prof Structural Engineering Department, Mansoura University, El-Mansoura, Egypt

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First Name

Mohamed

Last Name

E. El-Zoughiby

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-

Affiliation

Associate Prof. Structural Engineering Department, Mansoura University, El-Mansoura, Egypt

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Volume

164

Article Issue

0

Related Issue

18567

Issue Date

2019-12-01

Receive Date

2020-12-21

Publish Date

2019-12-01

Page Start

178

Page End

192

Print ISSN

1110-5615

Article File

ERJ_Volume 164_Issue 0_Pages 178-192.pdf

PDF . 725.2kB

Link

https://erj.journals.ekb.eg/article_131347.html

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https://erj.journals.ekb.eg/service?article_code=131347

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Original Article

Type Code

998

Publication Type

Journal

Publication Title

Engineering Research Journal

Publication Link

https://erj.journals.ekb.eg/

MainTitle

PERFORMANCE BASED SEISMIC ASSESSMENT OF BUILDINGS WITH CURVED SHEAR WALLS

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Article

Created At

22 Jan 2023