Mechanical Behavior of Cross-shaped Partially Encased Composite Columns under Axial Compression

Journal: Journal of Building Technology DOI: 10.32629/jbt.v4i1.657

Xin Liu1, Yuanping Li2

1. School of Mechanics and Construction Engineering, Jinan University
2. a.School of Mechanics and Construction Engineering, Jinan University b.MOE Key Lab of Disaster Forecast and Control in Engineering, Jinan University

Abstract

The mechanical properties of two cross-shaped PEC columns were investigated by an axial compression experiment. The experimental results showed that when the cross-shaped PEC columns were destroyed, the concrete was crushed and the flanges were locally buckled. Based on the experimental parameters, the ABAQUS software was used for finite element simulation, and the results of the finite element analysis agree well with the test results. To prevent concrete cracking and flange local buckling in the cross-shaped PEC column, a transverse link connection method was presented. The finite element simulation demonstrates that this method improves the ultimate carrying capacity and ductility of the columns. The effects of link spacing, link diameter, flange width-to-thickness ratio, and limb width ratio are also investigated.

Keywords

Cross-shaped PEC column; experimentation; finite element analysis; axial compression

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