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343718

NON-LINEAR EFFECT ON FLEXURAL STIFFNESS OF REINFORCED CONCRETE RECTANGULAR SECTIONS

Article

Last updated: 25 Dec 2024

Subjects

-

Tags

Structural Engineering

Abstract

The load-deformation characteristics of flexural members are very important in designing reinforced concrete structures. In most cases the dimensions of structural elements are governed by the allowable deflections to comply with the serviceability limit state provisions. Flexural rigidity represents a governing factor in the member deflection calculation. Due to cracking and the non-linear behavior of concrete, the flexural rigidity changes during loading history. Most current Codes recommend using the concept of equivalent moment of inertia and concrete elastic modulus for calculating immediate deflections. The aims of this research are: investigating the load-deformation characteristics taking into account the non-linear behavior of concrete; and introducing a simple method for estimating the flexural rigidity of reinforced concrete rectangular sections. A parametric study is carried out on groups of rectangular reinforced concrete sections for checking its flexural rigidity. Using regression analysis on the results of parametric study, empirical formula for estimating flexural rigidity is obtained. Also, a mathematical approach and design-aids charts are prepared for evaluating the flexural rigidity. Comparison of the results obtained using the proposed techniques with the nonlinear analysis results shows good agreement.

DOI

10.21608/ijaebs.2024.266205.1091

Keywords

moment-curvature, ductile failure, non-linear behavior, mathematical approach

Authors

First Name

Aiman

Last Name

Mohamed

MiddleName

Ezzat

Affiliation

Civil Eng. Dept. Modern Academy for Engineering and Technology

Email

aiman_ez@yahoo.com

City

-

Orcid

-

Volume

5

Article Issue

1

Related Issue

46989

Issue Date

2024-02-01

Receive Date

2024-01-28

Publish Date

2024-02-01

Page Start

22

Page End

38

Print ISSN

2682-2938

Online ISSN

2682-2946

Link

https://ijaebs.journals.ekb.eg/article_343718.html

Detail API

https://ijaebs.journals.ekb.eg/service?article_code=343718

Order

343,718

Type

Original Article

Type Code

1,136

Publication Type

Journal

Publication Title

International Journal of Advanced Engineering and Business Sciences

Publication Link

https://ijaebs.journals.ekb.eg/

MainTitle

NON-LINEAR EFFECT ON FLEXURAL STIFFNESS OF REINFORCED CONCRETE RECTANGULAR SECTIONS

Details

Type

Article

Created At

25 Dec 2024