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239050

Using bracing systems to improve the seismic performance of moment resisting frame

Article

Last updated: 23 Jan 2023

Subjects

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Tags

Civil Engineering: structural, Geotechnical, reinforced concrete and s…nd sanitary engineering, Hydraulic, Railway, construction Management.

Abstract

Bracing systems [BS] have been widely adopted as the primary lateral load resisting system in medium and high-rise buildings due to their inherent substantial lateral stiffness and load resistance, and it is considered the most effective method for fusing existing RC structures. Therefore, the seismic response of steel braced frames [SBF] with bracing members connected to the columns had been explored for a moment-resisting frame [MRF]. And different configurations of BS had been investigated to study their effects on lateral load resistance and get the optimized bracing configurations. Moreover, the study doesn't take into consideration only the BS over the height of the building, but it also reduces the length of the bracing element by adding many bracing panels over the height of stories which can lead to an increase in the resistance of seismic loading. The bracing panels can be an effective technique in dealing with the architects' constraints. Therefore, smaller brace components can be chosen for studying to avoid the architect's constraints and create different configurations while still meeting code criteria for brace strength and overall slenderness. The earthquake behavior of the retrofitted structure was analyzed by distributing the SB of various types (X, V inverted) over the height of the RC frame. The results demonstrate that the smaller brace components for X & V inverted bracing can contribute to reducing the lateral displacement and maximum story drift.

DOI

10.21608/jesaun.2022.122549.1119

Keywords

Bracing models, response spectrum, Retrofitting, MRF

Authors

First Name

Yasser A

Last Name

Gamal

MiddleName

-

Affiliation

Lecturer, Dept. of Civil. Eng., El Minia High Technology Institute, Minia, Egypt

Email

yasser.gamal2310@gmail.com

City

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Orcid

-

Volume

50

Article Issue

4

Related Issue

35221

Issue Date

2022-07-01

Receive Date

2022-02-18

Publish Date

2022-07-01

Page Start

205

Page End

226

Print ISSN

1687-0530

Online ISSN

2356-8550

Link

https://jesaun.journals.ekb.eg/article_239050.html

Detail API

https://jesaun.journals.ekb.eg/service?article_code=239050

Order

4

Type

Review Paper

Type Code

1,441

Publication Type

Journal

Publication Title

JES. Journal of Engineering Sciences

Publication Link

https://jesaun.journals.ekb.eg/

MainTitle

-

Details

Type

Article

Created At

23 Jan 2023