Steel and Composite Structures

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Experimental investigation on shear capacity of partially prefabricated steel reinforced concrete columns

  • Yang, Yong (School of Civil Engineering, Xi'an University of Architecture & Technology) ;
  • Chen, Yang (School of Civil Engineering, Xi'an University of Architecture & Technology) ;
  • Zhang, Jintao (School of Civil Engineering, Xi'an University of Architecture & Technology) ;
  • Xue, Yicong (School of Civil Engineering, Xi'an University of Architecture & Technology) ;
  • Liu, Ruyue (School of Civil Engineering, Xi'an University of Architecture & Technology) ;
  • Yu, Yunlong (School of Civil Engineering, Xi'an University of Architecture & Technology)
  • Received : 2017.11.08
  • Accepted : 2018.04.23
  • Published : 2018.07.10
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Abstract

This paper experimentally and analytically elucidates the shear behavior and shear bearing capacity of partially prefabricated steel reinforced concrete (PPSRC) columns and hollow partially prefabricated steel reinforced concrete (HPSRC) columns. Seven specimens including five PPSRC column specimens and two HPSRC column specimens were tested under static monotonic loading. In the test, the influences of shear span aspect ratio and difference of cast-in-place concrete strength on the shear behavior of PPSRC and HPSRC columns were investigated. Based on the test results, the failure pattern, the load-displacement behavior and the shear capacity were focused and analyzed. The test results demonstrated that all the column specimens failed in shear failure mode with high bearing capacity and good deformability. Smaller shear span aspect ratio and higher strength of inner concrete resulted in higher shear bearing capacity, with more ductile and better deformability. Furthermore, calculation formula for predicting the ultimate shear capacity of the PPSRC and HPSRC columns were proposed on the basis of the experimental results.

Keywords

Acknowledgement

Supported by : National Natural Science Foundation of China, Xi'an University of Architecture and Technology

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