|Table of Contents|

Shear Behavior of Multi-ribbed Composite Shear Walls with RPC Filled Steel Tubular Columns(PDF)

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

Issue:
2020年05期
Page:
142-150
Research Field:
Publishing date:

Info

Title:
Shear Behavior of Multi-ribbed Composite Shear Walls with RPC Filled Steel Tubular Columns
Author(s):
ZHU Qian;  JIANG Yong-jie;  YUE Xu-peng;  ZHAO Jun-hai
School of Civil Engineering, Chang’an University, Xi’an 710061, Shaanxi, China
Keywords:
unified strength theory;  RPC filled steel tubular column;  multi-ribbed composite shear wall;  shear capacity;  numerical simulation
PACS:
TU398.2
DOI:
10.19815/j.jace.2020.05015
Abstract:
In order to study the shear behavior of a new type of multi-ribbed composite shear walls with reactive powder concrete(RPC)filled steel tubular columns, the shear bearing capacity formulas for such composite walls were established based on both the unified strength theory and the calculation model of oblique compression strut. The intermediate principal stress, tensile-compressive strength difference and shear strength between the fringe frame and equivalent elastic plate were taken into account. Moreover, ABAQUS software was used to conduct horizontal monotonic loading on the composite shear walls with consideration of different RPC strengths, axial compression ratios and steel tubular yield strengths. The numerical simulation results and theoretical calculation results of shear capacity were compared and analyzed. The results show that the numerical simulation results are in better agreement with the theoretical calculated values, which verifies the accuracy of the theoretical method and the reliability of finite element model. Meanwhile, the shear capacity significantly improves with the increase of rib RPC strength. By increasing the axial compression ratio, the shear capacity increases first and then decreases, and ductility performance becomes worse. The shear capacity slightly enhances with increasing the yield strength of frame-column steel tube, however it can improve the ductility of the composite wall. The proposed shear bearing capacity formulas provide a theoretical foundation for the development of this new composite wall.

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Last Update: 2020-10-15