Thin-Walled CFST Columns for Enhancing Seismic Collapse Performance of High-Rise Steel Frames
Thin-Walled CFST Columns for Enhancing Seismic Collapse Performance of High-Rise Steel Frames
复制标题
增强高层钢框架抗震倒塌性能的薄壁钢管混凝土柱
DOI：
10.3390/app7010053
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发表时间：
2017-01
影响因子：
2.7
通讯作者：
Lin XC
中科院分区：
文献类型：
--
作者：
Bai Yongtao;Wang Jiantao;Liu Yashuang;Lin Xuchuan;Lin XC
本文数值研究了使用不同宽度和厚度构件的高层钢抗弯框架（SMRF）在连续地震作用下的倒塌能力。研究发现，地震的长周期分量与由层数控制的高层建筑的第一模态周期有明显的相关性。较高的建筑物往往会产生更严重的部件损坏，从而扩大较低楼层的最大楼层漂移角。当塑性变形广泛发展时，梁、柱构件的宽厚比明显影响倒塌能力。残余与最大层位移角之比对各种建筑模型的倒塌能力非常敏感。建议采用薄壁钢管混凝土 (CFST) 柱作为一种有效的替代方案，以增强具有脆弱倒塌性能的高层 SMRF 的整体刚度和变形能力。在等效抗弯刚度的情况下，薄壁构件的钢管混凝土-磁流变结构建筑表现出更高的避免倒塌的能力，更大的倒塌裕度表明，钢管混凝土-磁流变结构是地震多发地区高层建筑的合理系统。
This paper numerically studied the collapse capacity of high-rise steel moment-resisting frames (SMRFs) using various width-to-thickness members subjected to successive earthquakes. It was found that the long-period component of earthquakes obviously correlates with the first-mode period of high-rises controlled by the total number of stories. A higher building tends to produce more significant component deterioration to enlarge the maximum story drift angle at lower stories. The width-to-thickness ratio of beam and column components overtly affects the collapse capacity when the plastic deformation extensively develops. The ratio of residual to maximum story drift angle is significantly sensitive to the collapse capacity of various building models. A thin-walled concrete filled steel tubular (CFST) column is proposed as one efficient alternative to enhance the overall stiffness and deformation capacity of the high-rise SMRFs with fragile collapse performance. With the equivalent flexural stiffness, CFST-MRF buildings with thin-walled members demonstrate higher capacity to avoid collapse, and the greater collapse margin indicates that CFST-MRFs are a reasonable system for high-rises in seismic prone regions.
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影响因子：
6.4
作者：
R. Montuori;V. Piluso
通讯作者：
R. Montuori;V. Piluso
影响因子：
4.1
作者：
Lin-Hai Han;Wei Li;Y. Yang
通讯作者：
Lin-Hai Han;Wei Li;Y. Yang
DOI：
10.3130/aijs.70.181_3
发表时间：
2005
期刊：
Journal of Structural and Construction Engineering (transactions of Aij)
影响因子：
--
作者：
A. Kawano;H. Nejime;M. Tokuda
通讯作者：
A. Kawano;H. Nejime;M. Tokuda
DOI：
10.3130/aijs.61.51_2
发表时间：
1996
期刊：
Journal of Structural and Construction Engineering (transactions of Aij)
影响因子：
--
作者：
K. Uetani;H. Tagawa
通讯作者：
K. Uetani;H. Tagawa
圆形和方形钢管混凝土梁柱局部屈曲行为数值模拟
影响因子：
1.5
作者：
Bai Yongtao;Bai Yongtao;Lin Xuchuan;Mou Ben;Mou B
通讯作者：
Mou B