高烈度区高层框架剪力墙结构隔震设计分析  

Design and Analysis of Seismic Isolation of High-rise Frame Shear Wall Structure in High Intensity Area

作　　者：王念恋 WANG Nianlian(Guizhou Transportation Planning Survey&Design Academe Co.,Ltd.)

机构地区：[1]贵州省交通规划勘察设计研究院股份有限公司

出　　处：《广东建材》2025年第4期87-90,共4页Guangdong Building Materials

摘　　要：为提升高层建筑结构的抗震性能,本文以某高层建筑工程为例,提出高层框架剪力墙结构基础隔震设计方案,并对设置隔震结构后结构抗震效果进行评价。结果表明,当阻尼比超过0.15时,提升阻尼比对水平向减震系数影响不显著;当结构自振周期超过3.5s时,延长结构自振周期仍可降低结构水平向减震系数。随着楼层的增加,隔震模型与铰接模型条件下楼层剪力均不断降低;底部铰接模型条件下楼层剪力大于底部隔震模型下楼层剪力,故底部结构模型设计方案为隔震模型。采用优化后隔震支座布置方案后罕遇地震作用下X向扭转偏心率比调整前罕遇设防地震作用X向扭转偏心率降低了41.5%。故设置隔震结构可以有效提升高烈度区高层框架剪力墙结构的抗震效果。In order to improve the seismic performance of high-rise building structures,this paper takes a highrise building project in an example,puts forward the seismic isolation design scheme of high-rise shear wall structure foundation,and evaluates the seismic effect of the structure after installing the seismic isolation structure.The results show that when the damping ratio exceeds 0.15,the damping ratio has no significant effect on the horizontal damping coefficient.When the natural vibration period of the structure exceeds 3.5s,extending the natural vibration period of the structure can still reduce the horizontal damping coefficient of the structure.With the increase of the floor,the shear force of the floor decreases continuously under the seismic isolation model and the hinged model.The floor shear force under the bottom hinge model is greater than that under the bottom isolation model,so the design scheme of the bottom structure model is the isolation model.The X-direction torsional eccentricity under rare earthquakes is reduced by 41.5% compared with that under rare fortification earthquakes.Therefore,the installation of seismic isolation structure can effectively improve the seismic effect of high-rise frame shear wall structure in high intensity area.

关 键 词：高层建筑 框架剪力墙结构 隔震设计 隔震效果 

分 类 号：TU3[建筑科学—结构工程]