底层柱顶隔震框架结构设计方法

摘要

目前的建筑结构隔震设计方法主要针对的是基础隔震体系。以《建筑抗震设计规范》（GB50011－2010）第十二章隔震设计条款以及条文说明为依据，并以底层柱顶隔震模型结构的振动台试验结果和数值分析为参考，基于成熟的有限元分析软件，提出了实用的钢筋混凝土底层柱顶隔震框架结构设计方法和建议。考虑到地震的随机性建筑结构所处地区超烈度发生的概率高，确保底层结构的地震安全性，提出了底层结构应满足超设防烈度的必要性。建议实际隔震工程设计，考察隔震上部结构减震效果的同时，应重点对底层结构的动力响应和受力进行详细分析及加强抗震设计。%Currently isolation design method of architectural structure is primarily aimed at base isolation system .Based on chapter XII isolation design terms and provisions described of GB50011-2010 Code for Seismic Design of Buildings , further ,making the shaking table test results and numerical analysis of the first-story column top isolation structure model as a reference and based on proven finite element analysis software ,the functional design methods and recommendations of first-story column top isolation reinforced concrete framework structure was proposed .Considering the randomness of the earthquake ,the probability of architectural structure occurring ultra-high intensity was high ,and to ensure the seis-mic safety of underlying structure ,the necessity of underlying structure meeting the ultra-design intensity was proposed . The suggestions are in the actual isolation engineering design the damping effect of upper isolation structure should be in-vestigated ,at the same time the emphasis should be on the detailed analysis of underlying structure dynamic response and force and strengthening seismic design .