|Table of Contents|

Effect of Stiffness of Shear Studs on Structural Behavior of Curved Steel-concrete Composite Box Girder Bridges(PDF)

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

Issue:
2008年02期
Page:
96-100
Research Field:
Publishing date:
2008-06-20

Info

Title:
Effect of Stiffness of Shear Studs on Structural Behavior of Curved Steel-concrete Composite Box Girder Bridges
Author(s):
LEI Zi-xue1;  YAN Xing-wei1;  GAO Lin2
1. School of Architectural Engineering, Chang'an University, Xi'an 710061, Shaanxi, China; 2. Jilin Provincial High Class Highway Construction Bureau, Changchun 130021, Jilin, China
Keywords:
steel-concrete composite box girder bridge;  shear stud;  push-out test;  slip;  simulation analysis
PACS:
TU318
DOI:
-
Abstract:
The simulation analysis was carried out for shear stud push-out test by using ANSYS software. The load and slip curve that was quite close to that of real tests was obtained. Hence, it could be used directly in real bridges analysis. In SAP2000 software, spring elements were adopted to simulate the shear studs with shear stiffness obtained in the simulation analysis, and a 3-D model for a real bridge structure was built and analyzed. The structural responses under some loads were obtained to compare the effect of slip between the concrete deck and steel box on the structural behavior of the bridge. The results indicate that the stiffness of shear studs has relatively strong influence on the longitudinal stress of concrete deck, but has slight influence on the longitudinal stresses of the bottoms of steel box girders, defections and transverse displacement of bridges; the distribution of the internal forces of shear studs of a curved steel-concrete composite box girder bridge is very complicated, far from being calculated by analytical formulae or simplified methods. Therefore, the finite element analysis method or other rigorous methods are needed for the analysis of curved steel-concrete composite box girder bridges.

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Last Update: 2008-06-20