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(1 中機(jī)中聯(lián)工程有限公司, 重慶 400039; 2 重慶大學(xué)土木工程學(xué)院, 重慶 400045)

摘要: 重慶兩江協(xié)同規(guī)劃展示中心采用鋼框架+支撐結(jié)構(gòu)形式,頂部通過(guò)大跨度桁架組合形成兩江交匯的寓意,跨度達(dá)到 39m,最大懸挑長(zhǎng)度達(dá)到 12. 4m. 建筑處在山地斜坡上,屬于復(fù)雜的山地鋼結(jié)構(gòu)建筑. 根據(jù)建筑場(chǎng)地及結(jié)構(gòu)的不規(guī)則性以及超限情況,對(duì)復(fù)雜山地結(jié)構(gòu)基礎(chǔ)及主體結(jié)構(gòu)進(jìn)行設(shè)計(jì);基于三維分析軟件建立三維有限元模型,對(duì)整體結(jié)構(gòu)進(jìn)行地震作用下的分析,對(duì)結(jié)構(gòu)整體及局部穩(wěn)定、穿層柱、桁架支撐鋼框柱、鋼桁架連廊、抗連續(xù)倒塌、施工順序要求等關(guān)鍵項(xiàng)進(jìn)行詳細(xì)分析并采取加強(qiáng)措施. 結(jié)果表明:通過(guò)上述設(shè)計(jì)、分析與施工保障及加強(qiáng)措施,可以保證整個(gè)復(fù)雜山地鋼結(jié)構(gòu)的安全可靠.

關(guān)鍵詞: 重慶兩江協(xié)同規(guī)劃展示中心; 山地鋼結(jié)構(gòu); 大跨長(zhǎng)懸挑; 抗震性能設(shè)計(jì); 穩(wěn)定性分析; 連續(xù)倒塌

中圖分類(lèi)號(hào):TU393. 3 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):1002?848X(2022)08?0008?08

DOI:10. 19701 / j.jzjg.20211449

Design and analysis of complex steel structure on slopes of Chongqing Liang JiangCoordinated Planning Exhibition Center

TAN Qian1,2, LUO Xiaofeng1, XU Xiangpeng1, CHEN Yingyi1, ZHANG Xingjie1, WEI Fujia1

(1 CMCU Engineering Co., Ltd., Chongqing 400039, China;2 School of Civil Engineering, Chongqing University, Chongqing 400045, China)

Abstract: Chongqing Liang Jiang Coordinated Planning Exhibition Center adopts the steel frame and support structure form.And its top has the intersection of two rivers implication which through combining with two large?span truss. The span oflarge?span truss reaches 39m and the maximum cantilever length reaches 12. 4m. The building locate at the mountain slope,which belongs to the complex steel structure building on slopes. According to the irregularity of the building site andstructure and the over?limit degree, the foundation and main structure of complex structure on slopes was designed. Basedon the 3D analysis software, a 3D finite element model was established to analyze the overall structure under earthquakeaction. The key items such as overall and local stability of the structure, through?layer columns, truss?supported steel framecolumns, steel truss corridors, continuous collapse resistance, and construction sequence requirements were analyzed indetail and strengthened. The results show that the safety and reliability of the whole complex steel structure on slopes can beguaranteed through the above design, analysis,construction guarantee and strengthening measures.

Keywords:Chongqing Liang Jiang Coordinated Planning Exhibition Center; steel structure on slopes; large?span and longcantilever; seismic performance design; stability analysis; progressive collapse

∗重慶市博士后科學(xué)基金項(xiàng)目(cstc2019jcyj?bshX0070),重慶市勘察設(shè)計(jì)行業(yè)創(chuàng)新研究與能力建設(shè)項(xiàng)目(勘設(shè)創(chuàng)研 2019?12),重慶市九龍坡區(qū)科技計(jì)劃項(xiàng)目(2020?02?007?Y).

第一作者:譚潛,博士,工程師,主要從事地震動(dòng)、結(jié)構(gòu)抗震與振動(dòng)控制的研究,Email:tanqianzl@ sina.cn.

[引用本文] 譚潛,羅小峰,徐翔鵬,等. 重慶兩江協(xié)同規(guī)劃展示中心復(fù)雜山地鋼結(jié)構(gòu)設(shè)計(jì)分析 [ J]. 建筑結(jié)構(gòu),2022,52(8):8?15,7. TAN Qian, LUO Xiaofeng, XU Xiangpeng, et al. Design and analysis of complex steel structure onslopes of Chongqing Liang Jiang Coordinated Planning Exhibition Center[J]. Building Structure,2022,52(8):8?15,7.