- 摘 要
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張向東
（中鐵建設(shè)集團有限公司，北京 100131）[摘要] 針對某高層住宅樓進(jìn)行了安裝鉛剪切阻尼器的耗能減振設(shè)計研究，對設(shè)計前期的準(zhǔn)備到減震設(shè)計方法、設(shè)計步驟、分析結(jié)果及施工圖的繪制及施工注意事項全過程進(jìn)行了詳細(xì)的論述及分析。結(jié)果表明利用鉛剪切阻尼器能夠取得較好的減震效果，在8度多遇地震情況下，減震率達(dá)到40%以上，增加結(jié)構(gòu)阻尼比5.75%；在8度罕遇地震情況下層間位移達(dá)到了規(guī)范限值。耗能減振設(shè)計使基于7度設(shè)防的建筑物基本達(dá)到了8度設(shè)防要求，大大增強了結(jié)構(gòu)的安全儲備。
[關(guān)鍵詞] 消能減震；鉛剪切阻尼器；高層住宅；附加阻尼比
中圖分類號：TU3 11.3 文獻(xiàn)標(biāo)識碼：A 文章編號：1002-848X(2011) Sl-0147-05Application of lead shear dampers in a high-rise residential
Zhang Xiangdong
(China Railway Construction Group Co., Ltd., Beijing 100131, China)Abstract: Energy dissipation design principles was discussed against a high-rise residential building installing of lead shear dampers. The prelinunary preparation of design, reduction design method, design procedure, analysis results and construction drawings and construction notes were discussed and analyzed in detail. Results show that the use of lead shear damper can achieve better damping effect. Under 8 degree in the case of multi-earthquake, the damping rate can reach 40% or more, and increase the structural damping ratio of 5.75%. Under 8 degrees in the case of rare earthquake, story displacements can reach a specification linut. The fortification of buildings based on 7 degrees is strengthened t0 8 degrees fortification of basic requirements, and the safety margin of the structure is enhanced greatly.
Keywords: energy dissipation; lead shear damper; lugh-rise building; additional damping ratio
