Push-Off Tests On Full-Depth Precast Concrete Bridge Deck Panel To Steel Girder Connection
Push-Off Tests On Full-Depth Precast Concrete Bridge Deck Panel To Steel Girder Connection
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DOI：
10.32920/ryerson.14651532
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发表时间：
2021-06
期刊：
影响因子：
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通讯作者：
Bahman Marvi
中科院分区：
文献类型：
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作者：
Bahman Marvi
在桥梁施工中使用预制构件和系统作为改善桥梁施工的一种方式，最近已成为桥梁管辖区非常关注和感兴趣的主题。通过大规模生产材料，重复使用模板，通过将施工工作集中在制造设施而不是桥梁现场来减少现场施工时间和劳动力，可以获得显著的经济效益。目前传统的桥梁修复/更换系统在大多数情况下是非常耗时和昂贵的。与工作区安全和交通公路有关的问题，因为对商业和工业活动有重大的经济影响。因此，预制桥梁技术被视为解决许多问题的潜在方案。预制元件和系统可以快速组装，可以减少设计工作，减少对现场附近环境的影响，并最大限度地减少延误和车道关闭时间以及对旅行公众的不便，节省时间和纳税人的钱。该项目研究了全深度预制桥面板，没有覆盖层连接到钢梁使用集总抗剪连接器8面板钢梁连接不同的抗剪连接器配置安装和测试完全崩溃，以检查其结构性能，裂缝模式和极限承载能力。根据实验结果，提出了实际应用的建议。
The use of prefabricated elements and systems in bridge construction has recently been the subject of much attention and interest amongst bridge jurisdictions as a way of improving bridge construction. Through mass production of the materials, the repeated use of forms, reduction of on-site construction time and labour by concentrating the construction effort in a fabrication facility rather than at the bridge site, significant economic benefits can replacement. The current traditional bridge rehabilitation/replacement system in most situation is very time consuming and costly. Issues related to work zone safety and traffic highways because of the significant economic impact on commercial and industrial activities. As a result, prefabricated bridge technology is seen as a potential solution to many if these issues. Prefabricated elements and systems can be quickly assembled and could reduce design efforts, reduce the impact on the environment in the vicinity of the site, and minimize the delays and lane closure time and inconvenience to the traveling public, saving time and tax payers' money. This project investigates the full-depth precast bridge deck panels with no overlays connected to the steel girders using lumped shear connectors Eight panel-steel girder connections of different shear connector configurations were erected and tested to complete collapse to examine their structural behaviour, crack pattern and ultimate load carrying capacity. Based on the experimental findings, recommendations for practical applications were drawn.