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(1 成都市建筑設(shè)計(jì)研究院， 成都 610031； 2 成都興城建設(shè)管理有限公司， 成都 610041)

［摘要］成都某項(xiàng)目為超B級(jí)高度的復(fù)雜高層建筑，存在扭轉(zhuǎn)不規(guī)則、樓板局部不連續(xù)、穿層柱、斜柱、核心筒剪力墻收進(jìn)的抗震不利情況。設(shè)計(jì)中采用了基于性能的抗震設(shè)計(jì)方法，根據(jù)結(jié)構(gòu)重要性提出了高于性能D、低于性能C的抗震性能目標(biāo)，對(duì)結(jié)構(gòu)進(jìn)行了小震彈性分析及彈性時(shí)程分析、中震及大震的等效彈性分析和彈塑性分析。分析結(jié)果表明，結(jié)構(gòu)整體和各構(gòu)件的抗震性能均能達(dá)到設(shè)計(jì)的預(yù)期目標(biāo)。對(duì)于核心筒收進(jìn)位置的豎向構(gòu)件，通過計(jì)算分析及構(gòu)造措施加強(qiáng)，可以確保結(jié)構(gòu)構(gòu)件滿足設(shè)定的抗震性能目標(biāo)。

［關(guān)鍵詞］超高層建筑；扭轉(zhuǎn)不規(guī)則；樓板局部不連續(xù)；穿層柱；斜柱；核心筒剪力墻收進(jìn)；基于性能的抗震設(shè)計(jì)

中圖分類號(hào)：TU318文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2021)07-0098-07

Structural design of a super B-level complex high-rise tower in Chengdu

WU Shuangwen1, YIN Xiaona2

(1 Chengdu Architectural Design & Research Institute, Chengdu 610031, China；2 Chengdu Xingcheng Construction Management Co., Ltd., Chengdu 610041, China)

Abstract:A project in Chengdu is a complex high-rise building with super B-level height. There are unfavorable seismic conditions such as irregular torsion, partial discontinuity of floor slabs, cross-story columns, inclined columns and core tube shear walls setback. The performance-based seismic design method was adopted in the design. According to the importance of the structure, the target of seismic performance higher than performance D and lower than performance C was proposed. The structure was analyzed for small earthquake elasticity and elastic time history analysis, moderate and large earthquakes equivalent elastic analysis and elastoplastic analysis. The analysis results show that the seismic performance of the structure as a whole and each component can reach the expected goal of the design. For the vertical components in the setback position of the core tube, calculation analysis and structural measures are strengthened to ensure that the structural components meet the set seismic performance targets.

Keywords:super high-rise building;irregular torsion;partial discontinuity of floor slab;cross-story column;inclined column;core tube shear wall setback;performance-based seismic design

作者簡(jiǎn)介：吳雙文，碩士，高級(jí)工程師，Email:287104623@qq.com；通信作者：尹曉娜，碩士，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email:1033836359@qq.com。