|Table of Contents|

Analysis of In-plane Stability Performance of Large Span Steel Structure Curved Box-girders(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2012年03期
Page:
12-17
Research Field:
Publishing date:

Info

Title:
Analysis of In-plane Stability Performance of Large Span Steel Structure Curved Box-girders
Author(s):
WANG Yuan-qing1; 2;  LIU Li-yuan1; 2; 3;  DING Da-yi4; 5;  SHI Yong-jiu1; 2;  WAN Hai-ying5
1. Key Laboratory of Civil Engineering Safety and Durability of Ministry of Education, Tsinghua University, Beijing 100084, China; 2. Department of Civil Engineering, Tsinghua University, Beijing 100084, China; 3. Beijing Institute of Architecture Des
Keywords:
curved box-girder;  arc axis;  initial geometric imperfection;  in-plane stability performance;  finite element analysis
PACS:
TU391
DOI:
-
Abstract:
In order to study the in-plane stability performance of the arc axis both ends hinged curved box-girders, numerical method theory was carried out using finite element software ABAQUS. Two- dimensional curved girder models were established to simulate the in-plane stability of curved box- girders. Influences of different central angles, different slenderness ratio, and different initial geometric imperfections on the in-plane stability performances of the curved box-girder were considered. The differences and laws of the numerical solution and classic theoretical solution of the elastic buckling factor were gained. Effects on the stability factor and regularization slenderness ratio of the initial geometric imperfections were given, and the form of axial load-moment curve was calculated as well. The design formulae for calculating the in-plane stability of arc axis curved box-girders can provide theoretical basis and suggestions for the future design.

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Last Update: 2012-09-20