- 摘 要
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（1 上海建筑設(shè)計研究院有限公司, 上海 200041；2 SBP施萊希工程設(shè)計咨詢有限公司, 上海 200031）
［摘要］蘇州奧體中心體育場鋼屋蓋結(jié)構(gòu)為馬鞍形輪輻式單層索網(wǎng)結(jié)構(gòu)，跨度260m。對雙層索網(wǎng)和單層索網(wǎng)進(jìn)行了選型對比，對索網(wǎng)進(jìn)行了找形分析。為了考慮柔性屋面結(jié)構(gòu)與風(fēng)荷載之間的耦合作用，進(jìn)行了氣彈性模型風(fēng)洞試驗研究。柱腳銷軸和鑄鋼采用了高強(qiáng)材料，減小了構(gòu)件尺寸，達(dá)到美觀效果。對部分V形柱邊界條件進(jìn)行釋放，弱化了結(jié)構(gòu)剛度，減小了基礎(chǔ)沉降差異對鋼屋蓋結(jié)構(gòu)受力的影響。對結(jié)構(gòu)進(jìn)行了考慮幾何非線性和材料非線性的整體穩(wěn)定分析。進(jìn)行了柱腳節(jié)點(diǎn)的創(chuàng)新設(shè)計，并對其完成了有限元分析和節(jié)點(diǎn)試驗。進(jìn)行了柔性屋面大變形對附屬結(jié)構(gòu)影響研究，設(shè)置了鋼屋蓋健康監(jiān)測系統(tǒng)。上述計算分析、試驗和監(jiān)測系統(tǒng)保證了結(jié)構(gòu)的受力安全，可供類似工程設(shè)計提供參考。
［關(guān)鍵詞］蘇州奧體中心； 大跨度鋼結(jié)構(gòu)； 索網(wǎng)結(jié)構(gòu)； 氣彈性模型風(fēng)洞試驗； 穩(wěn)定分析； 大變形； 健康監(jiān)測
中圖分類號：TU318文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2019)23-0001-06
Structural design on steel roof of stadium of Suzhou Olympics Sports Center
Xu Xiaoming1, Zhang Shichang1, Gao Feng1, Chen Wei2
(1 Institute of Shanghai Architectural Design and Research Co., Ltd., Shanghai 200041, China;2 Schlaich Bergerman Partner, Shanghai 200031, China)
Abstract:The steel roof structure of Suzhou Olympic Sports Center Stadium is saddle spoke-shaped single-layer cable net structure with the span of 260m. The structural systems of double layer cable net and single layer cable net were compared, and form finding analysis was conducted on the cable net. In order to consider the coupling effect between the flexible roof structure and wind load, the aeroelastic model wind tunnel test was carried out. High strength materials were used for the pin shaft of column base and cast steel to reduce the size of components and achieve beautiful effects. Some of the boundary conditions of V-shaped columns were released, which weakened the structural rigidity and reduced the influence of foundation settlement difference on the stress of steel roof structure. The global stability of the structure was analyzed considering geometrical nonlinearity and material nonlinearity. The design of the column base joint was innovated, and the finite element analysis and joint test were completed. The influence of large deformation of flexible roof on accessory structure was studied, and the health monitoring system of steel roof was set up. The above calculation, analysis, test and monitoring system ensured the structural stress safety, which could provide reference for similar engineering designs.
Keywords:Suzhou Olympics Sports Center; large-span steel structure; cable net structure; aeroelastic model wind tunnel test; stability analysis; large deformation; health monitoring
*華建集團(tuán)科研項目（14-1類-0044-結(jié)），上海建筑設(shè)計研究院有限公司科研項目（院-13-1類-0052-結(jié)）。
作者簡介：徐曉明，碩士，教授級高級工程師，Email:xuxm2@isaarchitecture.com。
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