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A Preliminary Reduced Three Dimensional Model of Regular Diagrid Tall Buildings for Fast Seismic Analysis.

Article

Last updated: 04 Jan 2025

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Subjects

-

Tags

Civil Engineering

Abstract

This paper introduces a reduced 3D diagrid model to save both time and computer memory for modeling and seismic analysis. The analysis of different models of steel diagrid tall buildings with variable heights and inclinations of diagrid is performed applying a finite element program SAP2000. Three clusters of diagrid buildings with different aspect ratios (height-to-width) and reliable optimum inclination angles are examined. The cross sections for diagrid elements are designed using stiffness -based design method which is more reliable for diagrid buildings. The 3D finite element model as a real structure and the proposed reduced seismic model that reducing finite element model up to twenty percent by canceling a specified number of floors with restrictions in modeling are employed. Equivalent lateral Force, dynamic response spectrum, and linear time history analyses are considered. A comparison of obtained results in terms of lateral displacement at top of the building, first mode period of vibration and base shear are presented. The conclusions reveal that the proposed reduced 3D model is convince for preliminary modeling and analysis of regular diagrid buildings in existence of seismic loads.

DOI

10.21608/bfemu.2021.152515

Keywords

Diagrid system, Reduced model, Equivalent lateral force, Dynamic response spectrum, Linear time history

Authors

First Name

Mohamed Naguib

Last Name

Abou El-Saad

MiddleName

Mohamed

Affiliation

Civil Engineering Department, Faculty of Engineering, Mansoura University, Mansoura, Egypt

Email

naguib_2017@mans.edu.eg

City

Mansoura

Orcid

0000-0003-0165-2249

First Name

Ahmed

Last Name

Ghaleb

MiddleName

Amin

Affiliation

Civil Engineering Department, Faculty of Engineering, Mansoura University, Mansoura, Egypt

Email

ag_edc@yahoo.com

City

Mansoura

Orcid

-

First Name

Sameh

Last Name

Mahmoud

MiddleName

Lotfy

Affiliation

Civil Engineering Department, Faculty of Engineering, Mansoura University, Mansoura, Egypt

Email

same7.lotfy@gmail.com

City

Mansoura

Orcid

-

First Name

Ahmed

Last Name

Yousef

MiddleName

Mahmoud

Affiliation

Civil Engineering Department, Faculty of Engineering, Mansoura University, Mansoura, Egypt

Email

ahmyousef@mans.edu.eg

City

Mansoura

Orcid

0000-0001-9658-647X

Volume

46

Article Issue

1

Related Issue

20965

Issue Date

2021-03-01

Receive Date

2020-08-25

Publish Date

2021-02-28

Page Start

27

Page End

39

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 46_Issue 1_Pages 27-39.pdf

PDF . 2.4MB

Link

https://bfemu.journals.ekb.eg/article_152515.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=152515

Order

16

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

https://bfemu.journals.ekb.eg/

MainTitle

A Preliminary Reduced Three Dimensional Model of Regular Diagrid Tall Buildings for Fast Seismic Analysis.

Details

Type

Article

Created At

22 Jan 2023