Analysis on composite and ordinary rectangular steel concrete-filled column
of the axial pressure mechanical performance
Author information+
(1 College of Water Conservancy＆Architectural Engineering,Shihezi University, Xinjiang Shihezi，Xinjiang 832003 China；
2 China Water Resources and Hydropower Engineering Corporation, Beijing 100761, China)
For double rectangular steel tube, it has easy connection and large carrying capacity, but there are few studies for the
large aspect ratio of the rectangular cross-section. In order to study the difference of axial compressive performance of rectangular
concrete-filled steel tube column and double rectangular concrete-filled steel tube column with a large aspect ratio (1.7 times) ,
we did the test of axial compression strength of them and researched the similarities and differences of their damage
characteristics, stress condition, bearing capacity and ductility. The results show that core round steel changes internal force
distribution of ordinary rectangular concrete-filled steel tube column. For the rectangular concrete-filled steel tube column, corner
is damaged in the beginning, then long side of the rectangular section is drum damage, but for composite rectangular steel tubes
concrete-filled, the convex drum damage is happened on short edge of rectangular section on the top. The bearing capacity and
ductility of composite are 12.5% and 4.9% larger than the ordinary steel tube respectively indicating that composite rectangular
concrete-filled column has a better seismic behavior than ordinary rectangular concrete-filled column.
LIU Li , HE Mingsheng , TANG Jianping, .
Analysis on composite and ordinary rectangular steel concrete-filled column
of the axial pressure mechanical performance. Journal of Shihezi University. 2016, 34(4): 506-511 https://doi.org/10.13880/j.cnki.65-1174/n.2016.04.020
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