Concrete-filled double skin steel tubular (CFDST) columns subjected to long-term sustained loading
Concrete-filled double skin steel tubular (CFDST) columns subjected to long-term sustained loading
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DOI：
10.1016/j.tws.2011.08.001
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发表时间：
2011-12-01
影响因子：
6.4
通讯作者：
Liao, Fei-Yu
中科院分区：
文献类型：
--
作者：
Han, Lin-Hai;Li, Yong-Jin;Liao, Fei-Yu
进行了长期持续荷载作用下的双壁钢管混凝土柱的一系列试验。试验过程包括两个阶段，即长期服役试验和极限强度试验。建立了钢管混凝土柱在长期持续荷载作用下的数值分析模型。用这些模型计算的结果与试验结果基本吻合。此外，还对CFDST柱的长期性能进行了详细的分析。最后，提出了钢管混凝土柱在长期持续荷载作用下极限强度的简化计算公式。(C)2011爱思唯尔有限公司。保留所有权利。
This paper carried out a series of tests on concrete-filled double skin steel tubes (CFDST) columns under long-term sustained loading condition. The test process included two stages, i.e. long-term service test and ultimate strength test. Numerical models on analysis of the CFDST column under long-term sustained loading were presented. A comparison of results calculated using these models showed generally good agreement with the test results. Additionally, a detailed analysis was performed to analyse the long-term behaviour of CFDST columns. Finally, simplified formula for calculating the ultimate strength of CFDST columns subjected to long-term sustained loading was proposed. (C) 2011 Elsevier Ltd. All rights reserved.