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(南京長江都市建筑設(shè)計(jì)股份有限公司， 南京 210006)

［摘要］結(jié)合某平面布置偏心、豎向剛度突變的超限高層框架-抗震墻結(jié)構(gòu)，研究了不同結(jié)構(gòu)構(gòu)件布置方案對(duì)結(jié)構(gòu)抗扭轉(zhuǎn)性能的影響，并對(duì)優(yōu)選方案進(jìn)行了設(shè)防烈度地震及罕遇地震下的性能化分析，同時(shí)對(duì)結(jié)構(gòu)進(jìn)行了施工模擬分析。方案優(yōu)化研究表明，通過在結(jié)構(gòu)四角設(shè)置抗震墻能夠有效降低由于結(jié)構(gòu)布置偏心產(chǎn)生的扭轉(zhuǎn)效應(yīng)；彈塑性分析結(jié)果表明，在地震作用下，結(jié)構(gòu)豎向構(gòu)件能夠滿足中震彈性、不屈服以及大震不屈服的抗震性能目標(biāo)。施工模擬分析表明，核心筒與柱的豎向變形趨勢相同，沿高度呈魚腹式變化趨勢，收縮徐變引起的豎向變形在結(jié)構(gòu)施工中須充分考慮。對(duì)于超限高層框架\|抗震墻結(jié)構(gòu)，當(dāng)采用正確的分析路線、合理的結(jié)構(gòu)布置和適當(dāng)?shù)募夹g(shù)措施時(shí)，其抗震性能可以滿足規(guī)范要求。

［關(guān)鍵詞］超限高層建筑； 框架\|抗震墻； 性能設(shè)計(jì)； 優(yōu)化分析

中圖分類號(hào)：TU311-3文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2019)10-0001-05

Optimization design and performance analysis of an out-of-code high-rise frame-shear wall structural scheme

Jiang Han， Zhao Xuefei

(Nanjing Yangtze River Urban Architectural Design Co., Ltd., Nanjing 210006， China)

Abstract:The influence of different structural component layout schemes on torsional performance of the structure was studied based on a high-rise frame-shear wall structure with eccentric layout and abrupt vertical stiffness. The performance analysis of the optimized scheme under fortification intensity earthquakes and rare earthquakes was carried out. At the same time, the construction simulation analysis of the structure was carried out. The scheme optimization study shows that the torsional effect caused by eccentricity can be effectively reduced by installing shearwalls in the four corners of the structure. Elastic-plastic analysis results show that under earthquake action, the vertical members of the structure can meet the seismic performance objectives of elasticity under  medium earthquake, non-yielding under medium earthquake and non-yielding under rare earthquake. The construction simulation analysis shows that the vertical deformation trends of the corewall and the column are the same, and the change trend along the height is fish belly. The vertical deformation caused by shrinkage and creep should be fully considered in the construction of the structure. For the out-of-code high-rise frame-shear wall structure, when the correct analysis route, reasonable structure layout and appropriate technical measures are adopted, its seismic performance can meet the requirements of the code.

Keywords:out-of-code high-rise building; frame-shear wall; performance design; optimization analysis