预制保温密肋复合壳体墙受力性能研究

Study on the Mechanical Behavior of the Precast Multi-ribbed Composite Shell Wall

针对传统的密肋复合墙体需要在孔洞区域填充砌块、不利于装配式结构高效施工的问题,提出了一种新型保温密肋复合壳体墙。这种新型墙体在孔洞区域中间填充保温苯板,两侧浇筑一定厚度的混凝土,与肋柱、肋梁和外框架形成整体。结合相关规范和材料力学理论,计算了密肋复合壳体墙的轴心受压承载力和受剪承载力,以及墙体在水平荷载作用下的侧向刚度。计算结果表明,密肋复合壳体墙的承载力和刚度均大于密肋复合墙,具有推广和应用价值。

This paper proposed an innovative multi-ribbed composite shell wall to solve the problems of traditional multi-ribbed composite wall that the concrete blocks have to fill into the holes, which is unfavorable for the high efficiency of construction. The configuration of the new wall is that the benzene broad is filled into the holes with a certain thickness of concrete poured on both sides. The shell areas, rib columns and rib beams integrate into a system to bear the load. Based on the related code and the theory of material mechanics, the axial compressive capacity and shear capacity of composite shell wails are calculated. The lateral stiffness of the composite shell walls is also derived. The results show that the bearing capacity and the stiffness of the shell walls are greater than the traditional multi-ribbed composite walls, which will have large potential of application and promotion.