|Table of Contents|

Calculation of Axial Bearing Capacity of Rectangular Concrete-filled Steel Tube Short Column Based on Twin Shear Unified Strength Theory(PDF)

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

Issue:
2011年03期
Page:
88-92
Research Field:
Publishing date:
2011-09-20

Info

Title:
Calculation of Axial Bearing Capacity of Rectangular Concrete-filled Steel Tube Short Column Based on Twin Shear Unified Strength Theory
Author(s):
WANG Juan;  ZHAO Jun-hai;  WU Sai;  LIU Zhao
School of Civil Engineering, Chang'an University, Xi'an 710061, Shaanxi, China
Keywords:
restraining effect;  twin shear unified strength theory;  rectangular concrete-filled steel tube;  short column;  axial bearing capacity
PACS:
TU398.9
DOI:
-
Abstract:
Considering the difference between restriction effect on core-concrete provided by broad faces and that provided by narrow faces of the rectangular steel tube appropriately, the lateral pressure of rectangular steel tube towards core-concrete was equivalent to the uniform lateral pressure towards it. Based on the twin shear unified strength theory, the force of core-concrete in the rectangular steel tube was analyzed. The simple and practical calculation formula of the axial bearing capacity of rectangular concrete-filled steel tube short column was proposed, meanwhile, the influencing factors on the bearing capacity were analyzed. The calculation results in the paper were compared with the experiment results and the calculation results in relevant documents, coinciding well with each other. The result shows that the formula deduced in the paper has good applicability and the solution has an important practical value.

References:

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Last Update: 2011-09-20