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author:

Li Jian-hui (Li Jian-hui.) [1] | Feng Dong-ming (Feng Dong-ming.) [2] | Li Ai-qun (Li Ai-qun.) [3] | Yuan Hui-hui (Yuan Hui-hui.) [4] (Scholars:袁辉辉)

Indexed by:

EI Scopus SCIE CSCD

Abstract:

A systematic and generic procedure for the determination of the reasonable finished state of self-anchored suspension bridges is proposed, the realization of which is mainly through adjustment of the hanger tensions. The initial hanger tensions are first obtained through an iterative analysis by combining the girder-tower-only finite element (FE) model with the analytical program for shape finding of the spatial cable system. These initial hanger tensions, together with the corresponding cable coordinates and internal forces, are then included into the FE model of the total bridge system, the nonlinear analysis of which involves the optimization technique. Calculations are repeated until the optimization algorithm converges to the most optimal hanger tensions (i.e. the desired reasonable finished bridge state). The "temperature rigid arm" is introduced to offset the unavoidable initial deformations of the girder and tower, which are due to the huge axial forces originated from the main cable. Moreover, by changing the stiffness coefficient K in the girder-tower-only FE model, the stiffness proportion of the main girder, the tower or the cable subsystem in the whole structural system could be adjusted according to the design intentions. The effectiveness of the proposed method is examined and demonstrated by one simple tutorial example and one self-anchored suspension bridge.

Keyword:

finite element nonlinear relation optimization algorithm reasonable finished bridge state self-anchored suspension bridge

Community:

  • [ 1 ] [Li Jian-hui]Nanjing Forestry Univ, Coll Civil Engn, Nanjing 210037, Jiangsu, Peoples R China
  • [ 2 ] [Feng Dong-ming]Columbia Univ, Dept Civil Engn & Engn Mech, New York, NY 10027 USA
  • [ 3 ] [Li Ai-qun]Southeast Univ, Coll Civil Engn, Nanjing 210096, Jiangsu, Peoples R China
  • [ 4 ] [Yuan Hui-hui]Fuzhou Univ, Coll Civil Engn, Fuzhou 350116, Peoples R China

Reprint 's Address:

  • [Feng Dong-ming]Columbia Univ, Dept Civil Engn & Engn Mech, New York, NY 10027 USA

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Source :

JOURNAL OF CENTRAL SOUTH UNIVERSITY

ISSN: 2095-2899

CN: 43-1516/TB

Year: 2016

Issue: 1

Volume: 23

Page: 209-219

0 . 6 0 1

JCR@2016

3 . 7 0 0

JCR@2023

ESI Discipline: MATERIALS SCIENCE;

ESI HC Threshold:324

JCR Journal Grade:3

CAS Journal Grade:4

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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