|Table of Contents|

Designing Computation and Comparative Analysis on Strengthening Schemes of Sight Bridge's Steel Box Girder(PDF)

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

Issue:
2009年02期
Page:
68-74
Research Field:
Publishing date:
2009-06-20

Info

Title:
Designing Computation and Comparative Analysis on Strengthening Schemes of Sight Bridge's Steel Box Girder
Author(s):
YAO Nan1;  ZHANG Tian-shen2;  WANG Yuan-qing1;  SHI Yong-jiu1
1. Key Laboratory of Structural Engineering and Vibration of Ministry of Education, Tsinghua University, Beijing 100084, China; 2. Detecting Center of Structure Engineering, Tsinghua University, Beijing 100084, China
Keywords:
steel box girder bridge;  strengthening;  dynamic characteristic;  load;  static analysis;  modal analysis
PACS:
U445.7
DOI:
-
Abstract:
Three strengthening schemes were presented according to the inspecting and appraisal results of some sight bridge. The models of the upper structure of the bridge and three strengthening schemes were presented by using large finite element software ANSYS.Then, the finite element models of upper structure of the bridges and three strengthening schemes, which were updated by the data of static loading test, were built. The static analyses and modal analyses were executed by the models and influences of three strengthening schemes and the corresponding parameters on the deflection, maximum equivalent stress in support region, the ultimate bearing capacity and the dynamic characteristics of the bridges. The results show that it's reasonable to synthesize strengthening scheme 1 and strengthening scheme 3.

References:

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Last Update: 2009-06-20