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以传统的钢筋混凝土屋面板为基础,结合弦支结构(如张弦梁结构),提出了一种新型的预应力钢-混凝土复合屋面结构,即弦支混凝土集成屋盖结构。在对弦支混凝土集成屋盖结构进行较为系统的研究分析后,给出了详细构成及实现方法,提出了预应力设计方法,还给出了其中的预制钢筋混凝土板宜采用的形式和设计方法;弦支混凝土集成屋盖结构的自振频率分布相对较为密集,基频相对较小;在动力作用下的变形以上下振动为主,较少出现扭转等复杂变形。
Based on the traditional reinforced concrete roofing panel, a new type of prestressed steel-concrete composite roof structure is proposed, which is the integrated roof structure of the chordal concrete. After systematically studying and analyzing the roof structure of the chord concrete, the detailed structure and the method of its realization are given. The prestressing design method is presented, and the forms and design methods of precast reinforced concrete The natural frequency distribution of chord-supported concrete roof structure is relatively dense and the fundamental frequency is relatively small. The deformation under the action of motive force is mainly vibration up and down, with less torsional deformation.