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    張  濤¹，  馬  瑾²
    （1 鐵道部經(jīng)濟規(guī)劃研究院，北京100844；2 鐵道第三勘察設(shè)計院，天津300251）

[摘要] 結(jié)合工程實例，研究了扁平貝殼狀骨架支承膜屋面與圍護材料選擇、荷載取值、結(jié)構(gòu)及基礎(chǔ)設(shè)計。提出了結(jié)合不同季節(jié)、不同部位的日照分析、熱工性能和排水能力，選取膜結(jié)構(gòu)屋面建筑積水（冰）、積雪等荷載，合理調(diào)整膜結(jié)構(gòu)的網(wǎng)格尺寸與截面類型、構(gòu)件尺度，加強結(jié)構(gòu)的節(jié)點剛度與底部結(jié)構(gòu)剛度，以保證結(jié)構(gòu)的安全性及施工的便捷性。
[關(guān)鍵詞] 骨架膜；結(jié)構(gòu)設(shè)計
中圖分類號：TU318    文獻標(biāo)識碼：A  文章編號：1002-848X(2011) S2-0064-05

    Design of conchoidal membrane framework
    Zhang Tao¹, Ma Jin²
    (1 Econmic and Pilarung Institute of the Mirustry of Railways, Beijing 100844, China; 2 The Third Railway Survey & Design Institute, Tianjin 300251, China)

Abstract: Combining the project, the research on the conchoidal membrane framework roof, the surrounding material choice, the value of load, and the design of framework and foundation was studied. The sunshine analysis in different season and at different position, the pyrology capability and drain capability were taken into account when selecting load of seeper (ice), snow on roof, adjusting the size of grid, section type and component scale suitably, strengthening the rigidity of nodes and bottom structure to ensure the security of the structure and the convenience of construction.
Keywords: membrane framework; structure design