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（1 北京大學工學院 100871； 2 鐵道第三勘察設計院 天津 300251）
［提要］ 以某火車站無站臺柱雨蓬改造工程為例，通過風洞模擬實驗對雨蓬結構的平均風荷載規(guī)律進行了研究。討論了在無周圍建筑物影響和典型風向角下，各雨蓬單元的平均風壓分布特點，特別對各雨蓬單元之間的風荷載相互干擾現(xiàn)象和機理進行了探討和分析。結果表明，由于雨蓬單元間的相互干擾，各單元平均風荷載有很大的差別。有關結果可以為類似工程的平均風荷載設計提供指導和參考。
［關鍵詞］ 無站臺柱雨蓬 平均風荷載 相互干擾 風洞實驗
Research of Wind Loading on Nonplatformprop Canopy of a Railway Station/Chen Xuerei1, Yang Letian1, Zhou Xiaogang2, Gu Zhifu1(1 Peking University, Beijing 100871,China; 2 The 3rd Railway Survey & Design Institute, Tianjin 300251,China)
Abstract:Wind tunnel simulations of wind loading on nonplatformprop canopy of a railway station were conducted. The timemean averaged wind pressures on the canopy elements under the typical wind directions with no surroundings  are taken into account. The interaction of the wind loads on different canopy elements is invested by analyzing the results of averaged wind pressures by experiment methods. It indicates that the interaction between the platform canopies will bring a great difference wind load to the platform canopies. Because of the intercommunity of all the station, it is worth for similar projects.
Keywords:nonprop platform canopy; wind loading; interference; wind tunnel experiment