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首页> 外文会议>Third International Conference on Advances in Steel Structures Vol.2, Dec 9-11, 2002, Hong Kong, China >EXPERIMENT ON A MODEL STEEL BASE SHELL OF THE COMSHELL ROOF SYSTEM
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EXPERIMENT ON A MODEL STEEL BASE SHELL OF THE COMSHELL ROOF SYSTEM

机译：车顶系统模型钢基础壳的实验

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摘要

The popularity of thin concrete shell roofs has gradually declined over the past few decades, despite their many advantages. The main reason for this decline has been the costly and labour-intensive process of constructing and removing the necessary formwork and falsework. To overcome this difficulty, a new shell roof system, referred to herein as the Comshell system, has recently been proposed. A Comshell roof is constructed from a steel base shell formed by bolting together a large number of standard size modular units and cast in-situ concrete. The steel base shell serves as both the permanent formwork and the tensile reinforcement. A main design issue of Comshell roofs is the buckling strength of the bolted steel base shell during the construction stage under wet concrete loading. Due to the many bolted connections, the behaviour of these bolted base shells is complicated, so experiments are required to gain structural insight and the necessary test data for subsequent verification of numerical models. This paper is concerned with the experimental behaviour of these base shells at model scale, presenting both the experimental set-up and the results of the first experiment.
机译：尽管薄混凝土屋顶有许多优点，但在过去的几十年中，其普及率已逐渐下降。数量下降的主要原因是建造和删除必要的模板和脚手架的成本高昂且劳动强度大的过程。为了克服这个困难，最近已经提出了一种新的壳体屋顶系统，在此称为Comshell系统。 Comshell屋顶由钢制底壳构成，该底壳是通过将大量标准尺寸的模块化单元螺栓连接在一起并现场浇铸混凝土而形成的。钢制基础壳既用作永久模板又用作抗拉钢筋。 Comshell屋面的主要设计问题是在湿混凝土荷载下施工阶段螺栓连接的钢制基础壳体的屈曲强度。由于存在许多螺栓连接，因此这些螺栓基壳的行为很复杂，因此需要进行实验以获取结构信息和必要的测试数据，以用于后续的数值模型验证。本文关注这些基础壳在模型规模上的实验行为，同时介绍实验设置和第一个实验的结果。

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