摘要
目的探讨和完善更合理的隔震设计体系,提出中震基本弹性为设防目标,对隔震层非线性参数等效迭代处理的性能化直接设计方法.方法通过对实际工程分别采用基于性能的直接设计法和传统减震系数法进行设计和分析,对比了隔震结构采用不同数值积分方法的差异,研究了不同设计方法的内力响应以及性能化直接设计方法在引入不同性能折减系数时的经济性优势.结果隔震结构采用非线性快速积分法(FNA)与直接积分法的内力响应差异在10%以内;不同的性能调整系数C取值对楼板配筋影响不大,但会造成梁柱构件的差异,C值取0. 5时梁和柱含钢量小于减震系数法; C值取0. 7时梁的含钢量小于减震系数法,但框架柱则大于减震系数法.结论隔震结构性能化直接设计方法不仅可以大幅度降低上部结构的楼层响应,而且可以通过不同的性能调整分项系数达到不同的性能设计目标.
It aims to investigate and perfect isolation design method,performance-based design method of isolated structure under fortification intensity earthquake and equivalent parameter iterative method are proposed.By designing and analyzing the actual engineering using proposed method and traditional divisional design method respectively,the differences of numerical integration method and economic advantages with different reduction coefficients are compared.Research shows:The internal force response difference of isolated structure between nonlinear fast integral method(FNA)and direct integral method is within10%;the value of performance adjustment coefficient C has little effect on floor reinforcement,but will cause great differences of performance for beam and column.When the C value is0.5,steel content of beams or columns calculated by performance-based design method is less than that calculated by divisional design method,when the C value is0.7,steel content of beams are less than divisional design method,but frame column are greater than others.The performance-based direct design method can not only reduce the response of superstructure,but also achieve different performance goals though adjusting partial coefficients.
作者
滕晓飞
谭平
王晓哲
黄襄云
TENG Xiaofei;TAN Ping;WANG Xiaozhe;HUANG Xiangyun(Key Laboratory of Earthquake Resistance Earthquake Mitigation and Structural Safety Minstry of Education,Guangzhou University,Guangzhou,China,510405;Hongrongyuan Estate Group Co.Ltd,Shenzhen,China,518000)
出处
《沈阳建筑大学学报（自然科学版）》
CAS
CSCD
北大核心
2018年第6期1061-1068,共8页
Journal of Shenyang Jianzhu University：Natural Science
基金
国家自然科学基金项目(51478129)
广州市属高校"羊城学者"首席科学家培养项目(1201541630)
关键词
隔震结构
层间剪力
层间位移
直接积分法
非线性快速积分法
isolation structure
storey shear
storey displacement
direct integration method
nonlinear fast integration method
