Seismic resistance capacity of high-rise buildings subjected to long-period ground motions: E-defense shaking table test
Seismic resistance capacity of high-rise buildings subjected to long-period ground motions: E-defense shaking table test
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DOI：
10.1061/(asce)st.1943-541x.0000161
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发表时间：
2010-06
期刊：
影响因子：
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通讯作者：
Yu‐Lin Chung;T. Nagae;T. Hitaka;M. Nakashima
中科院分区：
文献类型：
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作者：
Yu‐Lin Chung;T. Nagae;T. Hitaka;M. Nakashima
对一高层建筑结构进行了长周期地震作用下的大型振动台试验。针对一栋21层、总高度为80 m的原型建筑，提出了保持结构构件原始尺寸的试验方法。试验试件由一个四层、两跨、单跨的钢框架和三个放置在框架顶部的替代层组成。由混凝土板和橡胶支座组成的替代层被布置成代表原型的上部楼层。通过初步的振动试验，验证了试件和原型在低阶模态固有周期和相应振型方面的等效性。当受到长周期地震动时，试件的累积延性是日本抗震设计中预期延性的四倍以上，而最大层间位移几乎与设计中考虑的层间位移相同。一个循环数在…
A series of large-scale shaking table tests is conducted for a high-rise building structure subjected to long-period ground motions. A test method is developed to preserve the original dimensions of structural members of a prototype building that has 21 stories with a total height of 80 m. The test specimen consists of a four-story, two-span by one-bay steel moment frame and three substitute layers placed on top of the moment frame. The substitute layers, which consist of concrete slabs and rubber bearings, are arranged to represent the upper stories of the prototype. From preliminary vibration tests, equivalence between the test specimen and the prototype is verified in terms of the lower mode natural periods and corresponding mode shapes. The test specimen when subjected to long-period ground motions exhibits cumulative ductilities more than four times those expected in Japanese seismic design, while the maximum story drifts remain nearly the same as those considered in the design. A number of cyclic in...