|Table of Contents|

Calculation and Analysis of Shear Capacity of Connection with Stiffening Rings Between RC Beam and CCFST Column(PDF)

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

Issue:
2011年02期
Page:
106-113
Research Field:
Publishing date:
2011-06-20

Info

Title:
Calculation and Analysis of Shear Capacity of Connection with Stiffening Rings Between RC Beam and CCFST Column
Author(s):
JIN Huai-yin;  XUE Wei-chen;  ZHOU De-yuan
School of Civil Engineering, Tongji University, Shanghai 200092, China
Keywords:
circular concrete-filled steel tubular column;  reinforced concrete beam;  stiffening ring;  shear capacity;  finite element analysis
PACS:
TU392.4
DOI:
-
Abstract:
The shear mechanism of panel zone of connection between reinforced concrete(RC)beam and circular concrete-filled steel tubular(CCFST)column was analyzed. The nonlinear finite element analysis models considering factors, such as material, geometrical and contact non-linearities were established by using the business software of ABAQUS. Then, parametric analyses were carried out to investigate the main influences of axial compression ratio, material strength of steel tube and concrete in the panel zone, thickness of steel tube, rib stiffeners and stiffening rings and so forth on shear capacity of the connection. The calculation formula of shear capacity of connection between RC beam and CCFST column was put forward. The study results show that the shear capacity of the connection is mainly contributed by the concrete, the steel tube and the rib stiffeners in the panel zone, and the relative contribution of the concrete and the steel tube is about 95%. The shear capacity of the connection approximately increases by 10% when axial compression ratio increases from 0 to 0.26. The calculation results by the formulae are in good agreement with the results by the finite element analysis.

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Last Update: 2011-06-20