新型交错层隔离结构在三维长周期地震下的地震响应分析

IF 1.7 4区 工程技术 Q3 ENGINEERING, CIVIL
Dewen Liu, Yanping Zheng, Min Lei, Jibing Zhao
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引用次数: 0

摘要

新型交错层隔震结构(NSSIS)是由底层隔震结构和中层隔震结构发展而来的一种新型结构。本文建立了交错层隔震结构的有限元模型,并分析了交错层隔震结构在三维长周期地震波下的动力响应。由于在三维长周期地震波下,隔震支座的拉应力和压应力都超过了极限值,因此引入了三维隔震支座,并与传统的水平隔震支座进行了比较。结果表明,NSSIS 在长周期地震波下的地震响应大于普通地震波。结构在三维地震波下的地震响应大于在一维(1D)和二维(2D)地震波下的地震响应。设置三维隔震支座后,结构的地震响应减小,结构的减震性能提高,隔震支座的压应力和拉应力满足要求。这为研究三维长周期地震波下的 NSSIS 提供了参考。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Seismic Response Analysis of a New Staggered Story Isolated Structure Under Three-Dimensional Long-Period Earthquakes

Seismic Response Analysis of a New Staggered Story Isolated Structure Under Three-Dimensional Long-Period Earthquakes

The new staggered story isolated structure (NSSIS) is a new structure developed from the base isolated structure and mid-story isolated structure. In this paper, a finite element model of an NSSIS was established and the dynamic response of the NSSIS under three-dimensional (3D) long-period earthquake waves was analyzed. As the tensile and compressive stress of the isolated bearings exceeded the limit value under the 3D long-period earthquake waves, the 3D isolated bearings were introduced and compared with the traditional horizontal isolated bearings. The results show that the earthquake response of the NSSIS under long-period earthquake waves were larger than ordinary earthquake wave. The earthquake response of structure under 3D earthquake waves was larger than that under one-dimensional (1D) and two-dimensional (2D) earthquake waves. After setting 3D isolated bearings, the earthquake response of the structure was reduced, the shock absorption performance of the structure was improved, the compressive and tensile stress of isolated bearings met the requirements. It can provide a reference for the study of the NSSIS under 3D long-period earthquake waves.

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来源期刊
CiteScore
3.30
自引率
11.80%
发文量
203
期刊介绍: The aim of the Iranian Journal of Science and Technology is to foster the growth of scientific research among Iranian engineers and scientists and to provide a medium by means of which the fruits of these researches may be brought to the attention of the world’s civil Engineering communities. This transaction focuses on all aspects of Civil Engineering and will accept the original research contributions (previously unpublished) from all areas of established engineering disciplines. The papers may be theoretical, experimental or both. The journal publishes original papers within the broad field of civil engineering which include, but are not limited to, the following: -Structural engineering- Earthquake engineering- Concrete engineering- Construction management- Steel structures- Engineering mechanics- Water resources engineering- Hydraulic engineering- Hydraulic structures- Environmental engineering- Soil mechanics- Foundation engineering- Geotechnical engineering- Transportation engineering- Surveying and geomatics.
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