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RECENT RESEARCH ON STEEL-CONCRETE COMPOSITE SHELL ROOFS

机译:钢-混凝土复合壳屋面的最新研究

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摘要

Steel-concrete composite shell roofs (Comshell roofs) are formed by pouring concrete on a thin stiffened steel base shell which serves as both the permanent formwork and the tensile steel reinforcement. The thin steel base shell, constructed by bolting together open-topped modular units consisting of a base plate with surrounding edge plates, is a steel shell with thin stiffeners in both directions. The new system retains all the benefits of thin concrete shells, but eliminates the need for temporary formwork and minimises the required falsework. Intensive research is currently being conducted by the authors on the behaviour and design of these composite shell roofs. This paper provides a description of this new structural system and a summary of current research on the various possible failure modes of this system.
机译:钢-混凝土复合壳屋面(Comshell roofs)是通过将混凝土浇铸在薄的加劲的钢制基础壳体上而形成的,该壳体既用作永久模板又用作抗拉钢筋。钢制薄壳是通过将顶板式模块化单元螺栓连接在一起而构成的,该模块化单元由带有周围边缘板的底板组成,是一个在两个方向上都具有薄型加劲肋的钢壳。新系统保留了薄混凝土外壳的所有优点,但消除了临时模板的需要,并最大程度地减少了所需的活件。作者目前正在对这些复合壳屋顶的性能和设计进行深入研究。本文对这种新的结构系统进行了描述,并对当前对该系统各种可能的失效模式进行的研究进行了总结。

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