|Table of Contents|

Nonlinear Finite Element Analysis of Steel-concrete Composite Beam to Concrete-filled Steel Tubular Column Joints(PDF)

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

Issue:
2009年04期
Page:
73-79
Research Field:
Publishing date:
2009-12-20

Info

Title:
Nonlinear Finite Element Analysis of Steel-concrete Composite Beam to Concrete-filled Steel Tubular Column Joints
Author(s):
SHI Qi-yin1;  LU Ming1;  LI Ai-qun2;  QIN Wei-hong2
1. Department of Civil Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China; 2. Key Laboratory of Concrete and Prestressed Concrete Structure of Ministry of Education, Southeast University, Nanjing 210096, Jiangsu, China
Keywords:
steel-concrete composite beam;  concrete-filled steel tubular column;  joint;  nonlinear finite element analysis;  hysteretic behavior;  constitutive relation
PACS:
TU398
DOI:
-
Abstract:
The cyclic constitutive relation of steel was proposed, which is a simplified Varma's model. Nonlinear 3-D finite element models(FEM)of two kinds of joints, namely steel bars headed through the pipe joint and steel bars welded with the upper strengthened ring joint, under the cyclic loading by using finite element software ANSYS were established. The nonlinear analysis of the above two kinds of concrete-filled steel tubular column to steel-concrete composite beam joints was conducted. The results show that the hysteretic curves and skeleton curves from FEM under low-cycle reversed loading agree well with those of the cyclic loading tests. If the material constitutive relation, calculation model and failure criterion can be selected suitably, the FEM can accurately predict the overall seismic behavior and the inelastic performance of these two kinds of joints, and can be used to conduct the nonlinear parameter analysis of the joints hysteretic behavior.

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Last Update: 2009-12-20