以带肋楼板为质量块形式的TMD设计方法研究
发布时间：2018-12-26 18:05
【摘要】：为了不额外增大结构自重,同时又能将TMD原理很好的应用于高层建筑结构地震反应控制,提出以带肋楼板的恒载和活荷载换算为子结构的质量、设置在主梁(包括次梁)和带肋楼板之间的橡胶隔震垫的抗侧刚度和阻尼代替子结构的弹簧和阻尼器的一种TMD体系。考虑该TMD的高层建筑为研究对象,建立振动微分方程,利用自编程序进行地震反应弹塑性时程分析,讨论该体系的合理性和可行性。基于定点理论的思想对TMD的设计方法进行研究。在多种地震动作用下,分别计算原结构与消能减震结构的地震反应,并对比两者的耗能情况。考虑TMD设置位置对消能结构地震反应的影响,分析该TMD在实际工程中实施的可行性和方案,最终提出简单有效的TMD设计方法-定点理论修正法。基于该方法并运用算例模型进行计算分析,结构运用该方法后具有较好的消能减震效果,故定点理论修正法是合理可靠的。
[Abstract]:In order not to increase the weight of the structure, and at the same time to apply the TMD principle to the seismic response control of high-rise building structure, it is proposed that the dead load and live load of the ribbed floor slab can be converted as the mass of the substructure. A TMD system in which the lateral stiffness and damping of the rubber isolation pad between the main beam (including the secondary beam) and the ribbed floor slab replace the substructure of the spring and damper. Considering the high-rise building of TMD as the research object, the vibration differential equation is established, and the elastoplastic time-history analysis of seismic response is carried out by using self-compiled program, and the rationality and feasibility of the system are discussed. Based on the idea of fixed point theory, the design method of TMD is studied. The seismic responses of the original structure and the energy dissipation structure are calculated under the action of various ground motions, and the energy dissipation of the original structure and the energy dissipation structure are compared. Considering the influence of the location of TMD on the seismic response of energy dissipation structure, the feasibility and scheme of implementing the TMD in practical engineering are analyzed. Finally, a simple and effective TMD design method-fixed point theory correction method is put forward. Based on the method and the example model, the structure has a better effect of energy dissipation and vibration absorption after using this method, so the fixed point theory correction method is reasonable and reliable.
【作者单位】： 江苏科技大学土木工程与建筑学院;上海二十冶建设有限公司;
【分类号】：TU973.31
本文编号：2392491
[Abstract]:In order not to increase the weight of the structure, and at the same time to apply the TMD principle to the seismic response control of high-rise building structure, it is proposed that the dead load and live load of the ribbed floor slab can be converted as the mass of the substructure. A TMD system in which the lateral stiffness and damping of the rubber isolation pad between the main beam (including the secondary beam) and the ribbed floor slab replace the substructure of the spring and damper. Considering the high-rise building of TMD as the research object, the vibration differential equation is established, and the elastoplastic time-history analysis of seismic response is carried out by using self-compiled program, and the rationality and feasibility of the system are discussed. Based on the idea of fixed point theory, the design method of TMD is studied. The seismic responses of the original structure and the energy dissipation structure are calculated under the action of various ground motions, and the energy dissipation of the original structure and the energy dissipation structure are compared. Considering the influence of the location of TMD on the seismic response of energy dissipation structure, the feasibility and scheme of implementing the TMD in practical engineering are analyzed. Finally, a simple and effective TMD design method-fixed point theory correction method is put forward. Based on the method and the example model, the structure has a better effect of energy dissipation and vibration absorption after using this method, so the fixed point theory correction method is reasonable and reliable.
【作者单位】： 江苏科技大学土木工程与建筑学院;上海二十冶建设有限公司;
【分类号】：TU973.31
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