【作者】 李红梅；

【导师】 魏建国； 夏亨熹； 刘芸波；

【作者基本信息】 河北农业大学 ， 水利水电工程， 2001， 硕士

【摘要】 基础隔震技术是在建筑结构基底设置隔震层，来控制地震波能量向上部结构传播，以达到减小结构地震反应的目的。在各类减震措施中，基础隔震技术以其行之有效、简单方便、经济实用等优势，得到了工程界的认可与欢迎，为了使隔震技术广泛应用于我国，有必要对其进行深入的理论分析与研究。本文针对基础摩擦滑移这一隔震形式进行讨论，建立了隔震体系的层间剪切模型，并利用Newmark法编制了基础摩擦滑移隔震结构地震反应分析程序。利用该程序，对中低层和高层隔震建筑地震反应进行了分析，并比较固定基础建筑和基底隔震建筑在地震荷载作用下的反应特性，分析其隔震效果。结果表明：基础摩擦滑移隔震技术具有明显的减震效果，它大大降低了地震作用下结构的峰值反应，有效地消耗了地震能量。此外，本文还对隔震层隔震参数（刚度、摩擦系数、阻尼）的改变对隔震结构隔震效果的影响进行了分析，为隔震参数的选取提出了一些参考性建议。更多还原

【Abstract】 The technology of base isolation by constructing isolation layer at building base is used to isolate seismic energy so that it can抰 spread upward therefore , seismic response of structure is cut down . In all kinds of seismic isolation measures , base isolation technology is accepted and popular in the field of engineering , because of the feature simplify , facility , effective and economy . For base isolation technology is used widely in China, it is necessary to analyze and study the theory deeply. In this paper, base sliding isolation technology is discussed mainly, and according to interbedded shear model seismic response analysis program of structure with base sliding isolation is compiled by using Newmark抯 method . With this program , seismic response of middle and high isolated structures is analyzed and compared with that of fixed base structures . Analysis results indicate that base isolation technology has obviously seismic isolating effect, and decreases maximum response of structure sharply when earthquake occurs , and isolates seismic energy effectively . Moreover , the author analyzes how change of isolating parameters (stiffness , friction coefficient , damping) influences the isolating effect of isolated structure , and presents some referential suggestion about selecting isolating parameters.更多还原