基于性能的不规则框架结构减震优化设计  

OPTIMIZED DESIGN OF VIBRATION ABSORPTION OF IRREGULAR FRAME STRUCTURE BASED ON PERFORMANCE

作　　者：叶创坤 杨晓东[1,2] 陶忠 孙任武[1,2] YE Chuang-kun;YANG Xiao-dong;TAO Zhong;SUN Ren-wu(College of Architecture and Engineering,Kunming University of Science and Technology,650500,Kunming,China;Yunnan Earthquake Engineering Technology Research Center,650500,Kunming,China)

机构地区：[1]昆明理工大学建筑工程学院,昆明650500 [2]云南省抗震工程技术研究中心,昆明650500

出　　处：《建筑技术》2023年第20期2443-2448,共6页Architecture Technology

摘　　要：以L形不规则框架结构为例,提出基于性能布置粘滞阻尼器进行消能减震设计。绘制了减震性能曲线,对不规则框架结构楼层平面不同位置所需粘滞阻尼器的参数进行优化分配,并对其减震效果进行分析。结果表明:基于性能的减震设计经过优化布置后,减震效果较未优化布置增强了3%左右,在设防地震和罕遇地震作用下,结构层间位移角、层间剪力均可得到有效降低且被控制在预期目标值内。Taking a L-shaped irregular frame structure as example,a viscous damper based on performance was proposed to carry out energy dissipation and shock absorption design.The shock absorption performance curve was drawn,the parameters of the viscous damper required at different positions of the floor plane of the irregular structure were optimally assigned,and the shock absorption effect was analyzed.The results show that the performance-based damping design is optimized and the damping effect is enhanced by about 3%compared with the unoptimized arrangement,and the displacement angle and interlayer shear force of the structure can be effectively reduced under the action of fortified earthquakes and rare earthquakes,and can be controlled within the expected target value.

关 键 词：不规则框架结构 粘滞阻尼器 减震性能曲线 优化布置 时程分析 

分 类 号：TU375[建筑科学—结构工程]