Experimental Study on Seismic Behavior of Full Encased Steel-Concrete Composite Columns
Experimental Study on Seismic Behavior of Full Encased Steel-Concrete Composite Columns
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DOI：
10.1061/(asce)st.1943-541x.0000951
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发表时间：
2014-06
期刊：
影响因子：
--
通讯作者：
C. Chen;Cuikun Wang;Hui Sun
中科院分区：
文献类型：
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作者：
C. Chen;Cuikun Wang;Hui Sun
摘要随着我国高层建筑的迅速发展，钢-混凝土组合结构以其优良的抗震性能得到了广泛的应用。目前，我国300 m以上的高层建筑均为钢-混凝土组合结构，并按我国规范进行设计。在钢-混凝土组合柱的施工过程中，遇到了两个主要问题：（1）最小弯矩比的确定;（2）钢-混凝土组合柱的嵌固深度比，这两个问题在我国规范中有严格的限制。针对这些问题，进行了26根钢-混凝土组合柱的低周反复荷载试验。通过对试件的破坏形态、滞回曲线、骨架曲线、耗能能力和延性的分析，探讨了轴压比、延性比、型钢截面形状和型钢埋深比对钢-混凝土组合构件抗震性能的影响。根据...
AbstractWith the rapid development of high-rise buildings in China, the steel-concrete composite structure is widely used because of its excellent seismic performance. So far, all of the high-rise buildings that rise more than 300 m in China are of a steel-concrete composite structure, which are designed based on Chinese codes. During the construction process, two main problems are encountered, as follows: (1) minimum stirrup ratio, and (2) embedded depth ratio for steel-concrete composite columns, which are strictly limited by Chinese codes. To solve those problems, 26 steel-concrete composite columns were tested under low cyclic reversed loading to simulate an earthquake load. By analyzing the failure patterns, hysteresis loops, skeleton curves, energy-dissipation capacity, and ductility of such specimens, the influence of the axial compression ratio, stirrup ratio, steel section shape, and steel embedded depth ratio on the seismic behavior of steel-concrete composite members are discussed. In accordanc...