- 摘 要
-
（1 華東建筑設(shè)計研究院有限公司， 上海 200041； 2 同濟(jì)大學(xué)建筑工程系， 上海 200092）
［摘要］在框架-核心筒結(jié)構(gòu)體系的基礎(chǔ)上，提出了一種新型結(jié)構(gòu)體系“框架-阻尼框筒結(jié)構(gòu)體系”。對某200m高、采用框架-阻尼框筒結(jié)構(gòu)體系的超高層建筑進(jìn)行了多遇地震下的設(shè)計，通過周期和層間位移角對比，得出鋼板阻尼墻在多遇地震下可以提供所需剛度。進(jìn)一步對該結(jié)構(gòu)進(jìn)行罕遇地震下的彈塑性時程分析，通過對基底剪力下降程度、頂部位移對比、層間位移角、框架損傷、鋼板阻尼墻耗能和有害層間變形進(jìn)行分析，表明鋼板阻尼墻在罕遇地震下能夠充分耗能，降低結(jié)構(gòu)響應(yīng)，保護(hù)框架構(gòu)件。最后，研究了鋼板阻尼墻屈服位移對結(jié)構(gòu)層間變形和鋼板阻尼墻耗能占比的影響。初步論證了框架-阻尼框筒結(jié)構(gòu)體系可應(yīng)用于200m左右的超高層建筑中，合理設(shè)計下具有優(yōu)異的抗震性能，為超高層建筑的結(jié)構(gòu)體系選擇提供了一種新的方案。
［關(guān)鍵詞］框架-阻尼框筒結(jié)構(gòu)； 鋼板阻尼墻； 超高層建筑； 彈塑性時程分析； 抗震性能
中圖分類號：TU375文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2020)18-0044-06
Study on the application of frame-damping-framed-tube structure in super high-rise buildings
XU Ziran1,2, CUI Jiachun1
（1 East China Architectural Design & Research Institute Co., Ltd., Shanghai 200041, China;2 Department of Building Engineering, Tongji University, Shanghai 200092, China）
Abstract:Based on the frame\|core tube structure system, a new structure system, “frame-damping-framed-tube structural system” was proposed. A 200m high-rise building with frame-damping-framed-tube structural system was designed under frequently occurred earthquake. By comparing the period and the story drift, it was concluded that the steel plate damping wall can satisfy the required stiffness under frequently occurred earthquake. Furtherly the elastoplastic time history analysis of the structure was carried out under rarely occurred earthquake. Based on the analysis of the degree of base shear decline, vertex displacement comparison, story drift, frame damage, energy dissipation of steel plate damping wall and harmful story deformation, it was showed that the steel plate damping wall can adequately dissipate energy, reduce structural response and protect frame structure. Finally, the effect of yield displacement of steel plate damping wall on story drift and ratio of energy dissipation of steel plate damping wall was studied. It was preliminarily demonstrated that the frame-damping-framed-tube structural system could be applied to super high-rise buildings around 200m, which has excellent seismic performance under reasonable design, providing a new scheme for selecting the structural system of super high-rise buildings.
Keywords:frame-damping-framed-tube structure; steel plate damping wall; super high-rise building; elastoplastic time history analysis; seismic performance
*國家重點研發(fā)計劃專項項目資助(2017YFC0703401)。
作者簡介：徐自然，博士研究生，工程師，Email：ziran_xu@arcplus.com.cn； 通信作者：崔家春，博士，正高級工程師，Email：jiachun_cui@arcplus.com.cn。
