ManageChatDiscover
114273

DYNAMIC NON-LINEAR BEHAVIOUR OF CABLE STAYED BRIDGES UNDER SEISMIC LOADINGS

Article

Last updated: 04 Jan 2025

OverviewSimilar Items

Subjects

-

Tags

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

Abstract

The cable stayed bridges represent key points in transport networks and their seismic behaviour need to be fully understood. This type of bridge, however is light and flexiable and has a low level of inherent damping. Consequenly, thery are susceptible to ambient excitation from seismic loads. Since the geometric and dynamic properities of the bridges as well as the characteristics of the excitations are complex, it is necessary to fully understand the mechanism of the interaction among the structural componenets with reasonable bridge shapes. This paper discuss the dynamic response of a cable stayed bridge under seismic loadings. All possible sources of nonlinearity, such cable sag, axial-force-bending moment interaction in bridge towers and girders and change of geometery of the whole bridge due to large displacement are based on the utilization of the tangent stiffness matrix of the bridge at the dead-load deformed state which is obtained from the geometry of the bridge under gravity load conditions ,iterative procedure is utilized to capture the non-linear seismic response and different step by step integration schemes are used for the integration of motion equations. In this study, three spans cable-stayed bridge with different cable systems has been analyzed by three dimensional nonlinearity finite element method. The three dimensional bridge model is prepared on SAP 2000 ver.14 software and time history analyses were performed to assess the conditions of the bridge structure under a postulated design earthquake of 0.5g. The results are demonstrated to fully understand the mechanism of the deck-stay interaction with the appropriate shapes of a cable stayed bridges.

DOI

10.21608/jesaun.2014.114273

Keywords

Deck, Pylon, Stay System, Dynamic analysis, Nonlinear Analysis, Finite Element Analysis, SAP 2000, time history, frequency, Acceleration, Earthquake

Authors

First Name

Fayez K.

Last Name

Abdel Seed

MiddleName

-

Affiliation

Staff in Civil Engineering Department, Faculty of Engineering, Assiut University.

Email

-

City

-

Orcid

-

First Name

Hamdy H.

Last Name

Ahmed

MiddleName

-

Affiliation

Staff in Civil Engineering Department, Faculty of Engineering, Assiut University

Email

-

City

-

Orcid

-

First Name

Shehata E.

Last Name

Abdel Raheem

MiddleName

-

Affiliation

Staff in Civil Engineering Department, Faculty of Engineering, Assiut University

Email

-

City

-

Orcid

-

First Name

Yasser

Last Name

Abdel Shafy

MiddleName

-

Affiliation

Petroleum Projects and Technical Consultations Company PETROJET

Email

-

City

-

Orcid

-

Volume

42

Article Issue

No 1

Related Issue

16628

Issue Date

2014-01-01

Receive Date

2013-06-27

Publish Date

2014-01-01

Page Start

18

Page End

49

Print ISSN

1687-0530

Online ISSN

2356-8550

Article File

JESAUN_Volume 42_Issue No 1_Pages 18-49.pdf

PDF . 1.4MB

Link

https://jesaun.journals.ekb.eg/article_114273.html

Detail API

https://jesaun.journals.ekb.eg/service?article_code=114273

Order

2

Type

Research Paper

Type Code

1,438

Publication Type

Journal

Publication Title

JES. Journal of Engineering Sciences

Publication Link

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

MainTitle

DYNAMIC NON-LINEAR BEHAVIOUR OF CABLE STAYED BRIDGES UNDER SEISMIC LOADINGS

Details

Type

Article

Created At

23 Jan 2023