標題: Axial compressive behavior of square composite columns confined by multiple spirals
作者: Liang, Ching-Yu
Chen, Cheng-Chih
Weng, Cheng-Chiang
Yin, Samuel Yen-Liang
Wang, Jui-Chen
土木工程學系
Department of Civil Engineering
關鍵字: Composite column;Multiple spirals;Confinement;Axial load-carrying capacity
公開日期: 1-十二月-2014
摘要: This study elucidates experimentally and analytically the axial compressive load-carrying capacity and behavior of square composite steel and concrete columns confined by multiple interlocking spirals. The variables of the specimens included type of the lateral reinforcement (rectilinear hoops and multiple spirals), spacing of the lateral reinforcement, and shape of the structural steel section (cruciform and box-shaped). Specimens were tested under monotonically increased axial load. The test results demonstrated that the composite columns with multiple spirals achieved great axial load-carrying capacity and deformability because of the excellent concrete confinement attributed to the multiple interlocking spirals and the structural steel section. Smaller spacing of the spirals and larger area of the highly confined concrete in the composite columns resulted in the better strength and ductility of the columns. An analytical model was proposed to calculate the load-displacement relations of the specimens, and the model predicted well the behavior of the specimens. The effectiveness of the multiple interlocking spirals in the square composite columns was evident via this study. (C) 2014 Elsevier Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/j.jcsr.2014.09.006
http://hdl.handle.net/11536/123873
ISSN: 0143-974X
DOI: 10.1016/j.jcsr.2014.09.006
期刊: JOURNAL OF CONSTRUCTIONAL STEEL RESEARCH
Volume: 103
起始頁: 230
結束頁: 240
顯示於類別:期刊論文


文件中的檔案:

  1. 000345489200020.pdf