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首页> 外文会议>Conference on Behaviour of Steel Structures in Seismic Areas; Jun 9-12, 2003; Naples, Italy >Seismic behaviour of two instrumented high-rise steel frame buildings
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Seismic behaviour of two instrumented high-rise steel frame buildings

机译：两种仪器化高层钢框架建筑的抗震性能

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摘要

The purpose of this paper is to present the results of a study of the seismic behaviour of two well-instrumented, tall steel frame buildings in Los Angeles, California. These buildings are within a few blocks of each other and have been subjected to ground motions from several earthquakes, among which the most significant are those from the 1994 Northridge earthquake. Though the buildings share many characteristics, each has a different structural lateral force resisting system. While one building relies on a perimeter tube system the other building relies on a spine structure with outrigger moment frames. Spectral analyses were used to determine that each building underwent a similar ground motion; hence, a meaningful comparison of building responses was made. Since the response of each building was mainly linear elastic it was possible to identify its linear dynamic characteristics by means of modal identification. The results of this study showed that although the buildings were subjected to the same level of ground shaking their different structural systems resulted in remarkably different building response. The differences and similarities of these responses are presented and discussed in this paper.
机译：本文的目的是介绍对加利福尼亚洛杉矶两座结构良好的高层钢框架建筑的抗震性能的研究结果。这些建筑物彼此之间只有几个街区，并且经受了几次地震的地震动，其中最重要的是1994年Northridge地震的那些。尽管建筑物具有许多特征，但每个建筑物都有不同的结构抗侧向力系统。一栋建筑物依靠外围管道系统，而另一栋建筑物则依靠带有悬臂梁框架的脊柱结构。光谱分析被用来确定每座建筑物都经历了类似的地面运动。因此，对建筑响应进行了有意义的比较。由于每个建筑物的响应主要是线性弹性，因此可以通过模态识别来确定其线性动态特性。这项研究的结果表明，尽管建筑物受到相同程度的地面震动，但它们不同的结构系统却导致建筑物的响应明显不同。本文介绍并讨论了这些响应的区别和相似之处。

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