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顧志福 李 燕 張文宏 李 輝
（北京大學(xué)力學(xué)與工程科學(xué)系 北京 100871）[提要] 以杭州網(wǎng)球館兩種不同形狀的膜頂結(jié)構(gòu)為例，通過風(fēng)洞模擬試驗說明膜頂形狀的改變對其風(fēng)荷載的敏感性及其影響。說明了在進行初步設(shè)計階段對這類輕型結(jié)構(gòu)進行風(fēng)洞模擬試驗的必要性。詳細分析了這類結(jié)構(gòu)屋頂?shù)谋砻骘L(fēng)壓分布隨風(fēng)向角變化的規(guī)律。
[關(guān)鍵詞] 膜結(jié)構(gòu) 風(fēng)壓分布 風(fēng)洞模擬 敏感性Wind-tunnel simulations of wind loading on membrane structure roof of Hangzhou Tennis Stadium were carried out with two different shapes.The results show that the wind loads are important and sensitive with the shape change. It is believed that the wind tunnel simulations are necessary for the early stage of design. The detailed patterns of wind loading on the roofs with various wind directions are given and analyzed.
Keywords: membrane structure; wind-pressure distributions; wind-tunnel simulation
