- 摘 要
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（中船第九設計研究院工程有限公司， 上海 200063）
［摘要］軟鋼阻尼器作為優(yōu)異的消能減震元件，在現(xiàn)代結(jié)構(gòu)的抗震設計中，具有越來越廣泛的應用。基于軟鋼阻尼器的應用和研究現(xiàn)狀，根據(jù)等值線性分析方法，探討軟鋼阻尼器的工程設計方法，并將該方法應用于某商業(yè)廣場項目塔樓結(jié)構(gòu)的減震設計分析。該塔樓高度為118.9m，框架核心筒結(jié)構(gòu)，臨近地鐵，在結(jié)構(gòu)設計分析中，需在保證結(jié)構(gòu)具有足夠的承載力和良好的經(jīng)濟性能的前提下，對構(gòu)件截面進行優(yōu)化，使結(jié)構(gòu)自重減輕，減少結(jié)構(gòu)沉降對地鐵隧道產(chǎn)生的不利影響。通過布置軟鋼阻尼器并對結(jié)構(gòu)抗震性能進行對比分析，研究結(jié)果表明：布置阻尼器的結(jié)構(gòu)，構(gòu)件截面得到明顯優(yōu)化，結(jié)構(gòu)總重降低，滿足設計要求，結(jié)構(gòu)的承載力性能與未布置軟鋼阻尼，未進行構(gòu)件截面優(yōu)化的結(jié)構(gòu)保持在相同水準，同時，阻尼器的布置使得結(jié)構(gòu)軟鋼阻尼器可延遲主體結(jié)構(gòu)進入彈塑性階段，提高結(jié)構(gòu)在罕遇地震下的抗震性能。
［關(guān)鍵詞］軟鋼阻尼器； 工程設計方法； 高層建筑； 抗震性能分析； 耗能機理研究
中圖分類號： TU375 文獻標識碼： A文章編號： 1002-848X(2016)S1-0408-04
Design method and engineering application of the mild steel damper
Hu Kai, Li Qingwu, Qu Ge, Yang Yimeng, Hu Dan
（China Shipbulding NDRI Engineering Co., Ltd., Shanghai 200063, China）
Abstract: The mild steel dampers are used more and more widely as excellent energy dissipation elements in the seismic design of modern structures. Based on the application and research status of the mild steel dampers, the engineering design method of the mild steel damper was acquired according to the equivalent linear analysis method. This method was applied in the design of a commercial plaza tower structure which is a 118.9m high frame-core tube structure. The structure is close to the subway tunnel. In the structure design, the section optimization should be taken to reduce the disadvantage to the subway tunnel on the premise of good structural and economic performance. In this structure, the mild steel dampers were used. The comparative analysis of the results showed that the structural member section have been significantly optimized and the total weight of the structure was reduced to meet the design requirements. The optimized structural performance was in the same level with the structure without damper and larger-section members. Meanwhile, the arrangement of mild steel damping could make the structure delayed into the elastic-plastic stage, improve the seismic performance of the structure under the rare earthquake.
Keywords: mild steel damper； engineering design method； high-rise building； anti-seismic performance analysis；mechanism research
作者簡介：胡凱，工學碩士，工程師， Email:whocannet@163.com。
