冷弯薄壁型钢-轻混凝土复合墙体受力性能研究综述
Review of Study on Mechanical Performance of Cold-Formed Thin-Walled Steel-Lightweight Concrete Composite Walls
随着可持续发展理念的不断推广与建筑工业化水平的不断提高,冷弯薄壁型钢结构体系被广泛应用于建筑结构当中。墙体是结构体系的重要组成部分,对结构抵抗外荷载起着至关重要的作用。传统冷弯薄壁型钢-覆面板复合墙体主要适用于低层建筑结构体系,然而在多高层建筑结构中,复合墙体需要具有更高的承载力和满足更多元化的功能需求。本文首先总结了目前已有冷弯薄壁型钢复合墙体的主要形式及其受压和受剪性能的相关研究。之后总结了国内外相关规范中关于混凝土复合墙体的设计方法,用一个算例对比了不同设计方法的差异,指出了目前冷弯薄壁型钢-轻混凝土复合墙体存在的主要问题,并对其未来的研究趋势进行了展望,可为我国发展多高层冷弯薄壁型钢结构体系提供参考。
With the continuous promotion of the concept of sustainable development and the increasing level of industrialization in construction,the cold-formed thin-walled steel(CFS) structural system has been widely applied in building structures. As a crucial component of building structures,walls play a pivotal role in resisting external loads. Traditional CFS-panel composite walls are mainly suitable for low-rise building structures. However,the composite walls need to have higher bearing capacity and more diversified functions to be suitable for multi-story and high-rise building structures. This paper summarizes the current main forms of CFS composite walls and related research on their compressive and shear mechanical performance. The design methods of concrete composite walls in relevant domestic and foreign specifications are summarized,and a design example is presented to compare these design methods. The main problems and research trends of current CFS-lightweight concrete composite walls are noted,which are useful for the development of multi-story and high-rise CFS structural systems in China.
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