Optimization of pre-Tensioning cable forces in highly redundant cable-stayed bridges

Banafsheh Asgari, Siti Aminah Osman, Azlan Bin Adnan

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Cable-stayed bridges have been developing rapidly in the last decade and have become one of the most popular types of long-span bridges. One of the important issues in the design and analysis of cable-stayed bridges is determining the pre-Tensioning cable forces that optimize the structural performance of the bridge. Appropriate pre-Tensioning cable forces improve the damaging effect of unbalanced loading due to the deck dead load. Because the cable-stayed structure is a highly undetermined system, there is no unique solution for directly calculating the initial cable forces. Numerous studies have been conducted on the specification of cable pre-Tensioning forces for cable-stayed bridges. However, most of the proposed methods are limited in their ability to optimize the structural performance. This paper presents an effective multi-constraint optimization strategy for cable-stayed bridges based on the application of an inverse problem through unit load method (ULM). The proposed method results in less stresses in the bridge members, more stability and a shorter simulation time than the existing approaches. The finite element (FE) model of the Tatara Bridge in Japan is considered in this study. The results show that the proposed method successfully restricts the pylon displacement and establishes a uniform deck moment distribution in the simulated cable-stayed bridge; thus, it might be a useful tool for designing other long-span cable-stayed bridges.

Original languageEnglish
Article number1540005
JournalInternational Journal of Structural Stability and Dynamics
Volume15
Issue number1
DOIs
Publication statusPublished - 16 Jan 2015

Fingerprint

Cable-stayed Bridge
Cable stayed bridges
Cable
Cables
Optimization
Optimise
Inverse problems
Japan
Unique Solution
Finite Element Model
Inverse Problem
Specification
Moment
Specifications
Unit

Keywords

  • cable pre-Tensioning forces
  • Cable-stayed bridge
  • finite element model
  • optimization

ASJC Scopus subject areas

  • Mechanical Engineering
  • Civil and Structural Engineering
  • Aerospace Engineering
  • Ocean Engineering
  • Building and Construction
  • Applied Mathematics

Cite this

Optimization of pre-Tensioning cable forces in highly redundant cable-stayed bridges. / Asgari, Banafsheh; Osman, Siti Aminah; Bin Adnan, Azlan.

In: International Journal of Structural Stability and Dynamics, Vol. 15, No. 1, 1540005, 16.01.2015.

Research output: Contribution to journalArticle

@article{8952dcbedfd947a7a3718cd583a85af4,
title = "Optimization of pre-Tensioning cable forces in highly redundant cable-stayed bridges",
abstract = "Cable-stayed bridges have been developing rapidly in the last decade and have become one of the most popular types of long-span bridges. One of the important issues in the design and analysis of cable-stayed bridges is determining the pre-Tensioning cable forces that optimize the structural performance of the bridge. Appropriate pre-Tensioning cable forces improve the damaging effect of unbalanced loading due to the deck dead load. Because the cable-stayed structure is a highly undetermined system, there is no unique solution for directly calculating the initial cable forces. Numerous studies have been conducted on the specification of cable pre-Tensioning forces for cable-stayed bridges. However, most of the proposed methods are limited in their ability to optimize the structural performance. This paper presents an effective multi-constraint optimization strategy for cable-stayed bridges based on the application of an inverse problem through unit load method (ULM). The proposed method results in less stresses in the bridge members, more stability and a shorter simulation time than the existing approaches. The finite element (FE) model of the Tatara Bridge in Japan is considered in this study. The results show that the proposed method successfully restricts the pylon displacement and establishes a uniform deck moment distribution in the simulated cable-stayed bridge; thus, it might be a useful tool for designing other long-span cable-stayed bridges.",
keywords = "cable pre-Tensioning forces, Cable-stayed bridge, finite element model, optimization",
author = "Banafsheh Asgari and Osman, {Siti Aminah} and {Bin Adnan}, Azlan",
year = "2015",
month = "1",
day = "16",
doi = "10.1142/S0219455415400052",
language = "English",
volume = "15",
journal = "International Journal of Computational Engineering Science",
issn = "0219-4554",
publisher = "World Scientific Publishing Co. Pte Ltd",
number = "1",

}

TY - JOUR

T1 - Optimization of pre-Tensioning cable forces in highly redundant cable-stayed bridges

AU - Asgari, Banafsheh

AU - Osman, Siti Aminah

AU - Bin Adnan, Azlan

PY - 2015/1/16

Y1 - 2015/1/16

N2 - Cable-stayed bridges have been developing rapidly in the last decade and have become one of the most popular types of long-span bridges. One of the important issues in the design and analysis of cable-stayed bridges is determining the pre-Tensioning cable forces that optimize the structural performance of the bridge. Appropriate pre-Tensioning cable forces improve the damaging effect of unbalanced loading due to the deck dead load. Because the cable-stayed structure is a highly undetermined system, there is no unique solution for directly calculating the initial cable forces. Numerous studies have been conducted on the specification of cable pre-Tensioning forces for cable-stayed bridges. However, most of the proposed methods are limited in their ability to optimize the structural performance. This paper presents an effective multi-constraint optimization strategy for cable-stayed bridges based on the application of an inverse problem through unit load method (ULM). The proposed method results in less stresses in the bridge members, more stability and a shorter simulation time than the existing approaches. The finite element (FE) model of the Tatara Bridge in Japan is considered in this study. The results show that the proposed method successfully restricts the pylon displacement and establishes a uniform deck moment distribution in the simulated cable-stayed bridge; thus, it might be a useful tool for designing other long-span cable-stayed bridges.

AB - Cable-stayed bridges have been developing rapidly in the last decade and have become one of the most popular types of long-span bridges. One of the important issues in the design and analysis of cable-stayed bridges is determining the pre-Tensioning cable forces that optimize the structural performance of the bridge. Appropriate pre-Tensioning cable forces improve the damaging effect of unbalanced loading due to the deck dead load. Because the cable-stayed structure is a highly undetermined system, there is no unique solution for directly calculating the initial cable forces. Numerous studies have been conducted on the specification of cable pre-Tensioning forces for cable-stayed bridges. However, most of the proposed methods are limited in their ability to optimize the structural performance. This paper presents an effective multi-constraint optimization strategy for cable-stayed bridges based on the application of an inverse problem through unit load method (ULM). The proposed method results in less stresses in the bridge members, more stability and a shorter simulation time than the existing approaches. The finite element (FE) model of the Tatara Bridge in Japan is considered in this study. The results show that the proposed method successfully restricts the pylon displacement and establishes a uniform deck moment distribution in the simulated cable-stayed bridge; thus, it might be a useful tool for designing other long-span cable-stayed bridges.

KW - cable pre-Tensioning forces

KW - Cable-stayed bridge

KW - finite element model

KW - optimization

UR - http://www.scopus.com/inward/record.url?scp=84929504833&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84929504833&partnerID=8YFLogxK

U2 - 10.1142/S0219455415400052

DO - 10.1142/S0219455415400052

M3 - Article

AN - SCOPUS:84929504833

VL - 15

JO - International Journal of Computational Engineering Science

JF - International Journal of Computational Engineering Science

SN - 0219-4554

IS - 1

M1 - 1540005

ER -