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弦支混凝土集成屋盖结构是在张拉整体及弦支结构的基础上提出的一种新型的预应力钢-混凝土复合屋面结构,该结构具有跨度大、施工安装方便、工业化程度高等优点,但它在通过增加预制钢筋混凝土板厚度来提高结构刚度的同时,也会导致结构本身自重的增大。钢丝网架混凝土夹芯板是一种新型轻质建筑板材,该板材具有重量轻、刚度大、承载能力强等优点。在弦支混凝土板基础上提出弦支钢丝网架混凝土夹芯板的概念,通过有限元软件对其基本特性进行研究,主要包括拉索预应力设计、结构自振特性以及钢丝网架混凝土夹芯板的裂缝控制。
The chord-supported concrete integrated roof structure is a new type of prestressed steel-concrete composite roof structure proposed on the basis of tensioning the whole chord support structure. The structure has the advantages of large span, convenient installation and installation and high degree of industrialization. However, It increases the rigidity of the structure by increasing the thickness of the precast reinforced concrete slab and at the same time it increases the weight of the structure itself. Steel mesh concrete sandwich panel is a new type of lightweight construction board, which has the advantages of light weight, high rigidity and strong carrying capacity. Based on the chord slab, the concept of chord steel mesh concrete sandwich panel is put forward. The basic characteristics of the concrete sandwich panel are studied by means of finite element software, including the design of cable prestressing, the natural vibration of structure and the concrete sandwich of steel truss Crack control of the board.