Study on compression behavior of cross-shaped column in the ultra-low-energy prefabricated modular wall building
Xiang Zhang,Wentao Qiao,Zhi Yang,Yahui Zhang,Bing Yan
Abstract
This research focuses on assessing the compression behavior of the cross-shaped column in the ultra-low energy prefabricated modular wall building system. Tests were conducted on nine groups of specimens under compression loading, with a focus on three variables: eccentricity, column length and steel thickness. It was found that the composite columns exhibited strong vertical bearing and deformation abilities. Each specimen demonstrated bending failure traits. The primary reasons for the specimens' failure were the concrete being crushed, the steel buckling and the stiffener plates experiencing bending failure. Lateral constraints were provided by the stiffener plates, which also boosted the specimen's integrity. Through examining the test outcomes, it is evident that eccentricity significantly influences the peak bearing capacity, decreasing with increased eccentricity. Steel and concrete operated in harmony during the compression phase. The plane cross-section assumption is met by the middle section of the column.
Xiang Zhang — 1)School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang, China 2)School of Civil Engineering, Tianjin University, Tianjin, China
Wentao Qiao — School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang, China
Zhi Yang — School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang, China
Yahui Zhang — China Construction Sixth Engineering Division Corp. Ltd., Tianjin, China
Bing Yan — School of Civil Engineering, Shijiazhuang Tiedao University, Shijiazhuang, China
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