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235650

Part I: Modified Buckling Factor for Columns in Braced and Unbraced Frames with Composite Girders

Article

Last updated: 22 Jan 2023

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Tags

Civil Engineering

Abstract

In the current paper, the influence of composite girders on modified buckling factor values was studied in braced and unbraced frames in which the composite girders' far ends were represented as fixed and rigid. Moreover, the derived formulation is based on the modified stiffness parameter and pursues the same assumptions as in the standard effective length factor (K-factor). Furthermore, the slope-deflection method was used to obtain the modified buckling factor formulae for composite girders in braced and unbraced frames. After that, the relationship between the critical buckling factor and beam length has been demonstrated for practical purposes. In addition, the composite girders' effects on effective length parameters are illuminated using illustrative examples that utilize the various girders' far-end conditions. Eventually, we can draw the conclusion that the modified stiffness factor for composite girders must be considered in the calculations of K-factor for braced and unbraced frames in order to achieve an accurate and economical design

DOI

10.21608/bfemu.2022.235650

Keywords

Stability functions, unbraced frames, The alignment charts, composite frames, braced frames, Composite girders, 15% cracked analysis, stiffness coefficients, and sagging moment

Authors

First Name

S.

Last Name

A. Eltawil

MiddleName

-

Affiliation

Msc at Structural Engineering department, Faculty of Engineering, Mansoura University, Egypt.

Email

saraeltawil1@yahoo.com

City

-

Orcid

-

First Name

S.

Last Name

M. Abdrabou

MiddleName

-

Affiliation

Professor of Structural Engineering department, Faculty of Engineering, Mansoura University, Egypt

Email

abdrabou@mans.edu.eg

City

-

Orcid

-

First Name

N.

Last Name

S. Mahmoud

MiddleName

-

Affiliation

Professor of Structural Engineering department, Faculty of Engineering, Mansoura University, Egypt.

Email

nsm_eco@yahoo.com

City

-

Orcid

-

Volume

47

Article Issue

2

Related Issue

32041

Issue Date

2022-04-01

Receive Date

2021-12-11

Publish Date

2022-04-01

Page Start

11

Page End

22

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 47_Issue 2_Pages 11-22.pdf

PDF . 1.5MB

Link

https://bfemu.journals.ekb.eg/article_235650.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=235650

Order

13

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

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

MainTitle

-

Details

Type

Article

Created At

22 Jan 2023