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Proposing and finite element analysis of a new composite profiled sheet deck
Structures ( IF 3.9 ) Pub Date : 2020-05-28 , DOI: 10.1016/j.istruc.2020.05.016
Abdollah Moslemi , Bahram Navayi Neya , Mohammad Reza Davoodi , Mehdi Dehestani

Composite decks made of steel profiled sheets are extensively noted by researchers and industries due to their desirable economic and mechanical advantages. The major drawback of this type of decks is having a notable amount of concrete in the tension zone which implies a notable dead load to the structure. The main purpose of this study is to enhance the efficacy of these decks by introducing new configurations and employing FRP sheets. Thus, an accurate finite element (FE) model is developed and verified to analyze the new concepts proposed in Abaqus software. To enhance the accuracy of the FE model, the steel-concrete surface interaction is modeled as a cohesive behavior. Three different configurations are proposed as new deck sections with several parametric analyses to introduce a section with enhanced performance. Due to some difficulties in the manufacturing process some geometries with steel profiles, a configuration is proposed with FRP sheets to use both their flexibility in the manufacturing and mechanical desirable properties. Among several types of polymers, Glass fabrics are chosen due to their mechanical and economical properties. All new sections demonstrate a better load-deflection response or lower weight when compared with the main traditional steel profiled sheeting deck.



中文翻译:

新型复合异型板的提议与有限元分析

由钢型材制成的复合甲板由于其理想的经济和机械优势而受到研究人员和工业界的广泛关注。这种类型的甲板的主要缺点是在张紧区中有大量的混凝土,这暗示了该结构的显着的静载荷。这项研究的主要目的是通过引入新的配置并采用FRP板材来增强这些甲板的功效。因此,开发并验证了精确的有限元(FE)模型,以分析Abaqus软件中提出的新概念。为了提高有限元模型的准确性,将钢-混凝土表面相互作用建模为内聚行为。提出了三种不同的配置作为带有一些参数分析的新甲板部分,以引入性能增强的部分。由于制造过程中的一些困难,一些具有钢外形的几何形状,提出了一种具有FRP片材的构造,以使用其在制造中的灵活性和机械所需的性能。在几种类型的聚合物中,由于其机械和经济性能而选择玻璃纤维织物。与主要的传统钢制异型材盖板相比,所有新部分均表现出更好的载荷-挠度响应或更低的重量。

更新日期:2020-05-28
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