摘要
偏心率是隔震结构的隔震层设计的非常重要的控制参数,本文提出了通过优化隔震支座参数来控制隔震层偏心率的方法。根据支座面压以及隔震层的屈重比限值,初步选择支座规格并进行归并后分组,从中选取一组支座其刚度作为优化参数,以隔震层偏心率小于3%为优化目标,利用Matlab软件编程求解未知刚度,得到支座在满足隔震层偏心率要求下的最优刚度。以昆明新国际机场航站楼的隔震支座布置方案为例,对该方法进行了验证,结果表明,该方法明显提高了支座布置的精度和效率。此方法为实际工程提供了一定价值的参考。
During the design of isolation layer in base-isolation structure,the eccentricity is one of important control parameters,this paper studies how to control the eccentricity of isolation layer by appropriately arranging bearing.According to bearing press and ratio of shear to weight in isolation layer,firstly choosing isolation bearing,then merging and grouping.Choosing the stiffness of one group bearing for optimal parameters,taking the eccentricity of the isolation layer less than 3% for goal,using Matlab program to solve the unknown stiffness,and get the optimal stiffness when the eccentricity of the isolation layer satisfies the requirement.This paper takes one bearing design of Kunming new international airport by using new method for example,the results show that efficiency and precision are improved in the arrangement method,and valuable reference is provided for practical engineering.
出处
《四川建筑科学研究》
北大核心
2011年第3期135-138,共4页
Sichuan Building Science
基金
国家自然科学基金重大研究计划(90815017)
关键词
基础隔震
支座布置
偏心率
base isolation
bearing arrangement
eccentricity
作者简介
吴晓飞（1985-），男，江苏丹阳人，硕士研究生，研究方向：结构抗震。E—mall：wuxiaofel@sina．com
