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（中船第九設(shè)計(jì)研究院工程有限公司， 上海 200063）

［摘要］以某大懸挑桁架結(jié)構(gòu)為分析實(shí)例，采用動(dòng)力彈塑性時(shí)程分析方法對(duì)大懸挑結(jié)構(gòu)進(jìn)行消能減震設(shè)計(jì)，對(duì)減震效果及布置方案進(jìn)行探討。結(jié)果表明：對(duì)于大懸挑結(jié)構(gòu)，通過布置黏滯阻尼器可以有效地減少結(jié)構(gòu)在地震作用下的豎向位移、豎向加速度和桿件內(nèi)力；黏滯阻尼器布置于懸挑結(jié)構(gòu)端部位置的減震效果優(yōu)于其布置在懸挑結(jié)構(gòu)根部；不同的阻尼器布置方案對(duì)減震效果、建筑功能及原結(jié)構(gòu)剛度產(chǎn)生不同的影響，設(shè)計(jì)中需綜合考慮。

［關(guān)鍵詞］大懸挑結(jié)構(gòu)；黏滯阻尼器；減震效果；減震方案

中圖分類號(hào)：TU312+.1文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2021)08-0032-05

Research on seismic energy dissipation design of a large suspension truss structure

LI Qingwu, NI Jiangong, QU Ge, JIANG Li, XIAO Binghui

(China Shipbuilding NDRI Engineering Co., Ltd., Shanghai 200063， China)

Abstract:A large suspension truss structure was used as an analysis example, and the dynamic elastic-plastic time analysis method was used to design the large suspension structure for seismic energy dissipation design, and the damping effect and layout plan were discussed. The results show that for large suspension structures, the vertical displacement, vertical acceleration and internal force of the members under seismic action can be effectively reduced by laying out viscous dampers; the damping effect of the viscous dampers arranged at the end position of the suspension structure is better than that at the root of the suspension structure; different layout schemes of dampers have different effects on damping effect, building function and original structural stiffness, which need to be comprehensively considered in the design.

Keywords:large suspension structure;viscous damper;damping effect;damping scheme

作者簡(jiǎn)介：李慶武，碩士，工程師，Email：leeqingwu@gmail.com；

通信作者：蔣瓅，碩士，工程師，Email：Jiangli@ndri.sh.cn。