Composite dowels as shear connectors for composite beams - Background to the design concept for static loading
Composite dowels as shear connectors for composite beams - Background to the design concept for static loading
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DOI：
10.1016/j.jcsr.2018.04.013
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发表时间：
2018-08-01
影响因子：
4.1
通讯作者：
Feldmann, Markus
中科院分区：
文献类型：
--
作者：
Kopp, Maik;Wolters, Kevin;Feldmann, Markus
在钢-混凝土组合梁中，组合销被称为强力剪力连接件。越来越多地被应用于实践中，特别是用于预制组合桥梁。与有头螺柱相比，它们提供了更高的强度。即使在高强度混凝土中，它们也显示出良好的变形能力。此外，在无上翼缘的型钢中的应用非常简单。然而，缺少具有经济回旋曲线和拼图形状的复合材料销钉的标准导致了应用中的犹豫，这通常是由于批准过程中的延迟。因此，由FOSTA（钢结构应用研究协会）资助完成的德国研究项目P804的目的是解决有关这些创新剪力连接件的未决问题，并为任何设计办公室或建筑公司准备通用技术批准[1]。自2013年5月起，在技术批准中规定了回旋和拼图形状的复合材料销钉。本文介绍了推导出的极限状态技术规则、结构设计原则和生产施工指导的背景资料，并提供了进一步的背景资料。(C)2018爱思唯尔有限公司版权所有
Composite dowels are known as powerful shear connectors in steel-concrete-composite girders. More and more they are used in practice, especially for prefabricated composite bridges. Compared to headed studs they provide an increased strength. They also show a good deformation capacity even in high strength concrete. Furthermore, the application in steel sections without upper flange is very simple. Nevertheless, missing standards for composite dowels with the economic clothoidal and puzzle shape have led to hesitations in application which is often due to delays in the approval process. Hence, the aim of the finished German research project P804 funded by FOSTA - Research Association for Steel Application was to solve open questions concerning these innovative shear connectors and to prepare a general technical approval [1] available for any design office or construction company. Since May 2013 the composite dowels with clothoidal and puzzle shape are regulated in the technical approval. This paper presents the background information to the derived technical rules for ultimate limit state, structural design principles and instructions for production and construction and provides further background information. (C) 2018 Elsevier Ltd. All rights reserved.