Experimental study and design recommendations on seismic behavior of spatial steel frame concrete frame structures

被引:0
|
作者
Tang, Xingrong [1 ]
He, Baolin [1 ]
机构
[1] Key Laboratory of Structure Engineering of Jiangsu Province, Suzhou University of Science and Technology, Suzhou 215011, China
关键词
Welding - Steel structures - Seismic response - Structural frames - Stiffness - Light weight concrete - Reinforced concrete - Concrete buildings - Steel construction - Seismic design;
D O I
暂无
中图分类号
学科分类号
摘要
The load-bearing lightweight steel structure can be built by welding the transverse and inclined lace bars on longitudinal chords, forming a kind of spatial steel frame. The concrete structure with spatial steel frame is gained by substituting spatial welding steel frame for binding steel skeleton in reinforced concrete structure. In order to study the seismic behavior of spatial steel frame concrete frame, including its bearing capacity, deformation capability, ductility as well as failure mechanism, the comparison of the tests of 2 spatial steel frame concrete frames and 1 reinforced concrete frame subjected to the low cyclic reversed load were carried out. The results of the tests showed that the initial stiffness of the spatial steel frame concrete frame is almost the same as that of the reinforced concrete frame. The stiffness degradation of the spatial steel frame concrete frame is slower than that of the reinforced concrete frame after yielding of the specimen. Under the same reinforcement ratio, the ductility of the spatial steel frame concrete frame is better than that of the reinforced concrete frame. Based on the tests and analysis, the restoring force models and design recommendations of such structure are presented.
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页码:45 / 52
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