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(湖南省建筑設(shè)計(jì)院集團(tuán)股份有限公司, 長(zhǎng)沙 410012)

摘要: 長(zhǎng)沙某大型綜合性辦公樓,高 56. 8m,主體采用鋼筋混凝土框架-剪力墻結(jié)構(gòu),因同時(shí)存在扭轉(zhuǎn)不規(guī)則、樓板不連續(xù)、豎向構(gòu)件間斷以及局部夾層、穿層柱等多項(xiàng)不規(guī)則,為超限高層結(jié)構(gòu)。 其中因建筑功能需求存在 33. 6m 大跨轉(zhuǎn)換鋼桁架,是本工程設(shè)計(jì)的重點(diǎn)與難點(diǎn)。 基于項(xiàng)目特點(diǎn)及不規(guī)則項(xiàng),制定了相應(yīng)的抗震性能化設(shè)計(jì)目標(biāo)與加強(qiáng)措施,并對(duì)結(jié)構(gòu)總體抗震性能以及大跨轉(zhuǎn)換鋼桁架的大震性能、關(guān)鍵節(jié)點(diǎn)、振動(dòng)舒適度做了專項(xiàng)分析。 結(jié)果表明,結(jié)構(gòu)抗震性能滿足預(yù)設(shè)的性能目標(biāo)要求,同時(shí)大跨轉(zhuǎn)換鋼桁架各項(xiàng)性能均表現(xiàn)良好。

關(guān)鍵詞: 超限高層結(jié)構(gòu); 轉(zhuǎn)換鋼桁架; 關(guān)鍵節(jié)點(diǎn); 抗震性能; 舒適度

中圖分類號(hào):TU398+. 2 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):1002-848X(2022)22-0016-07

DOI:10. 19701 / j. jzjg. ZJ220053

Design of a large-span transfer out-of-code high-rise structure in Changsha

GONG Lingli, YANG Bo, LI Peng, LIU Jianwen

(Hunan Architectural Design Institute Group Co. , Ltd. , Changsha 410012, China)

Abstract: A large-scale comprehensive office building in Changsha is 56. 8m high, which adopts reinforced concrete frameshear wall structure. It is an out-of-code high-rise structure because of the existence of torsion irregularity, floordiscontinuity, vertical member discontinuity, local interlayer, through floor column and many other irregularities. Amongthem, 33. 6m long-span transfer steel truss is the focus and difficulty of the project design due to the functional requirementsof the building. Based on the project characteristics and irregularities, the corresponding seismic performance-based designobjectives and strengthening measures were formulated, and the overall seismic performance of the structure and the largeseismic performance, key nodes, and vibration comfort of the large-span transfer steel truss were specially analyzed. Theresults show that the seismic performance of the structure meets the preset performance target requirements, and theperformance of the long-span transfer steel truss is good.

Keywords:out-of-code high-rise structure; transfer steel truss; key node; seismic performance; comfort

∗湖南省建筑設(shè)計(jì)院集團(tuán)股份有限公司課題:湖南省建筑抗震標(biāo)準(zhǔn)及實(shí)施情況調(diào)研(KY0200-0000-2019-0016)。

第一作者:龔靈力,博士,高級(jí)工程師,主要從事復(fù)雜結(jié)構(gòu)設(shè)計(jì)及結(jié)構(gòu)參數(shù)化方面研究,Email:8761266@ qq. com。

[引用本文] 龔靈力,陽(yáng)波,李鵬,等. 長(zhǎng)沙某大跨轉(zhuǎn)換超限高層結(jié)構(gòu)設(shè)計(jì)[ J]. 建筑結(jié)構(gòu),2022,52(22):16-22,107.GONG Lingli,YANG Bo,LI Peng,et al. Design of a large-span transfer out-of-code high-rise structure in Changsha[ J].Building Structure,2022,52(22):16-22,107.