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(1 上海建筑設(shè)計(jì)研究院有限公司, 上海 200041;2 上海建筑空間結(jié)構(gòu)工程技術(shù)研究中心, 上海 200041)
摘要: 以上海世博溫室熱帶雨林館(P3)為工程背景,結(jié)合溫室建筑對結(jié)構(gòu)通透性的需求,首先對平板型屋蓋結(jié)構(gòu)體系的設(shè)計(jì)難點(diǎn)進(jìn)行分析,對結(jié)構(gòu)體系方案進(jìn)行比選及計(jì)算分析研究. 采用小模量非線性有限元方法并結(jié)合邊界條件對屋蓋結(jié)構(gòu)進(jìn)行找形分析,構(gòu)建張弦網(wǎng)格結(jié)構(gòu)體系,進(jìn)一步對比分析了張弦網(wǎng)格結(jié)構(gòu)體系和蜂窩型空間網(wǎng)架結(jié)構(gòu)的特點(diǎn),分析結(jié)構(gòu)體系的豎向和水平向抗力系統(tǒng). 結(jié)果表明兩種結(jié)構(gòu)體系均能滿足結(jié)構(gòu)剛度、穩(wěn)定性及受力要求,都可有效解決多邊形鋁合金平板型結(jié)構(gòu)面外剛度不足的難題,且對屋蓋結(jié)構(gòu)復(fù)雜邊界的適應(yīng)性好. 結(jié)合項(xiàng)目建筑效果、加工和施工難度等綜合考慮,本項(xiàng)目最終實(shí)施方案為張弦鋁合金網(wǎng)格結(jié)構(gòu)體系,可推廣應(yīng)用于自由曲線邊界屋蓋建筑中.
關(guān)鍵詞: 張弦鋁合金網(wǎng)格結(jié)構(gòu); 多邊形鋁合金網(wǎng)格; 蜂窩型空間網(wǎng)架; 密柱筒; 結(jié)構(gòu)體系
中圖分類號:TU395,TU393. 3 文獻(xiàn)標(biāo)志碼:A 文章編號:1002-848X(2023)01-0016-07
DOI:10. 19701 / j. jzjg. SHY2318
Research and engineering application of string aluminum alloy grid structure systemfor Shanghai World Expo Greenhouse
LI Ruixiong1,2, JIA Shuizhong1,2, LI Yaming1,2
(1 Shanghai Institute of Architectural Design & Research Co. , Ltd. , Shanghai 200041, China;2 Shanghai Engineering Research Center of Spatial Structures, Shanghai 200041, China)
Abstract: Based on the project background of the Tropical Rainforest Pavilion (P3) of Shanghai World Expo Greenhouseand the requirement of greenhouse buildings for structural permeability, firstly,the design difficulties of flat roof structuresystem were analyzed. The structural system schemes were compared, selected, calculated, analyzed and studied. Thesmall modulus nonlinear finite element method combined with boundary conditions was used to conduct shape findinganalysis on the roof structure, and the string grid structure system was constructed. The characteristics of the string gridstructure system and the honeycomb space frame were further compared and analyzed. The vertical and horizontal resistancesystems of the structural system were analyzed. The results show that the two structural systems can meet the structuralstiffness, stability and stress requirements, both can effectively solve the problem of insufficient out of plane stiffness ofpolygonal aluminum alloy plate structure, and have good adaptability to the complex boundary of roof structure. Consideringthe architectural effect, processing and construction difficulty of the project, the final implementation scheme of the projectis the string aluminum alloy grid structure system, which can be popularized and applied to the roof building with free curveboundary.
Keywords:string aluminum alloy grid structure; polygonal aluminum alloy mesh; honeycomb space frame; dense cylinder;structural system
∗上海市 2021 年度“科技創(chuàng)新行動計(jì)劃”社會發(fā)展科技攻關(guān)項(xiàng)目(21DZ1203003),華建集團(tuán)課題(18-1 類-0066-結(jié)、19-1 類-0190-結(jié)、21-3 類-0411-結(jié)).
作者簡介:李瑞雄,博士,高級工程師,主要從事大跨空間結(jié)構(gòu)設(shè)計(jì)研究工作,Email: lirx@ isaarchitecture. com.
[引用本文]李瑞雄,賈水鐘,李亞明. 上海世博溫室張弦鋁合金網(wǎng)格結(jié)構(gòu)體系研究與工程應(yīng)用[ J]. 建筑結(jié)構(gòu),2023,53(1):16-22. LI Ruixiong,JIA Shuizhong,LI Yaming. Research and engineering application of string aluminumalloy grid structure system for Shanghai World Expo Greenhouse [J]. Building Structure,2023,53(1):16-22.
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