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新型悬挂减振体系三个问题的概念分析

onceptual analysis of three problems on the new type suspended vibration-evadable system

中文摘要英文摘要

本文针对新型悬挂减振体系的三个问题进行了概念分析;研究了P-Δ效应下核筒侧移与箱基础倾斜的静力耦合关系,根据静力分析,考虑耦合的主结构侧向位移比不考虑耦合的可能会大得多,而倾覆力矩却没有明显增加。本文还分析悬挂次结构刚体的摆动问题,表明刚体动力分析方法比质点动力分析方法更加接近于真实;且若要使得悬挂减振体系的主、次结构的动力响应都达到优化要求,则地震波的衰减系数既不能太大,也不能太小。根据现行规范,分别得到了正六边形核筒悬挂建筑主结构在不同抗震设防烈度时的名义高宽比限值。

onceptual analysis of three problems on the new type suspended vibration-evadable system is brought forward in this paper. The static coupling relationship between the lateral displacement of the core tube and inclination of the box basement under the P-Δ effect is analyzed, which indicates that the lateral displacement considering the coupling relationship will be much more than that without while the overturning moment almost keeping the same value. The rigid-body swaying function of the secondary structures is constructed and solved analytically, which indicating that a secondary structure is considered as rigid body is more rational than that is considered as a lumped mass, and when the attenuation coefficient of the earthquake wave is moderate, the dynamic responses of the major and secondary structures of the suspended structure will be optimal. Based on the current Chinese Code, the nominal height-to-width ratios of the hexagonal core-tube suspended building structure under different seismic fortification intensities are listed.

吕志涛、钱洋、张继文、陈杰、涂永明

建筑结构

结构工程结构性能概念分析悬挂减振体系

structural engineeringstructural performanceconceptual analysissuspended vibration-evadable system

吕志涛,钱洋,张继文,陈杰,涂永明.新型悬挂减振体系三个问题的概念分析[EB/OL].(2007-09-27)[2025-08-22].http://www.paper.edu.cn/releasepaper/content/200709-569.点此复制

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