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作 者:胡梦涵 贾振雷 韩强[3] 杜修力[3] 惠斌 HU Meng-han;JIA Zhen-lei;HAN Qiang;DU Xiu-li;HUI Bin(School of Civil and Transportation Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044,China;Department of Civil Engineering,Tsinghua University,Beijing 100084,China;State Key Laboratory of Bridge Safety and Resilience,Beijing University of Technology,Beijing 100124,China;Beijing General Municipal Engineering Design&Research Institute Co.Ltd.,Beijing 100082,China)
机构地区:[1]北京建筑大学土木与交通工程学院,北京100044 [2]清华大学土木工程系,北京100084 [3]北京工业大学桥梁工程安全与韧性全国重点实验室,北京100124 [4]北京市市政工程设计研究总院有限公司,北京100082
出 处:《中国公路学报》2025年第2期147-163,共17页China Journal of Highway and Transport
基 金:国家自然科学基金项目(52208454,52338010)。
摘 要:预制拼装桥面板以施工速度快,低碳环保,对既有交通和周围环境干扰小等优势逐渐成为桥梁工程领域的研究热点之一。预制拼装桥面板的施工速度、整体性和耐久性主要取决于接缝形式、构造与材料等。湿接缝以其现场浇筑量小,施工容差大,整体性能好等优势逐渐成为预制拼装桥面板普遍采用的接缝形式。对预制拼装桥面板湿接缝的研究进行了较为系统的梳理和总结。首先介绍了常见湿接缝的类型和性能,并阐述了基于高性能材料湿接缝的构造形式和力学性能,重点探讨了预埋钢筋湿接缝和预应力湿接缝的抗弯、抗剪和抗拉承载力预测模型与计算方法;在此基础上,通过实际工程应用与实践阐明了预制拼装桥面板湿接缝的工程应用价值;指出了预制拼装桥面板湿接缝的发展趋势和进一步需要开展的研究工作。结果表明:基于高性能材料,研发性能优越、构造简单、施工便捷且兼顾经济性的湿接缝连接构造仍然是前提,创新性的湿接缝在弯矩、剪力和疲劳等作用下的工作机制、失效机理和力学性能预测模型及计算公式等是基础,预制拼装桥面板湿接缝面向工程的实用设计方法等是关键。Prefabricated bridge deck panels(PBDPs)are easily constructed,are associated with lower pollution levels,and cause minimum disruptions in existing traffic and the surrounding environment.Owing to these advantages,they are gradually becoming the research focus of bridge engineering.Configurations and materials of joints have significant effects on the speed of construction,integrity,and durability of PBDPs.Wet joints,with their small amounts of grout,high tolerance for construction errors,and superior mechanical properties,have gradually become commonly used joint types for PBDPs.Herein,previously published research studies on wet joints for PBDPs are systematically summarized.The configurations and performance of common wet joints are introduced first.The designs and behaviors of wet joints with high-performance materials are then clarified.The prediction models for the capacity of bar connections and post-tensioned connections subjected to bending moments,shear,and tension are discussed.The practical engineering values of the wet joints are demonstrated based on engineering practices.Finally,the development trends and future research directions of wet joints for PBDPs are pointed out.Based on high-performance materials,the novel configurations of the wet joints associated with superior performance,simple and convenient construction approaches,and economic efficiency,constitute the premise of future studies.Working mechanisms,failure modes,and performance prediction models of novel wet joints subjected to bending moment,shear,and fatigue loading are the basis for future works.In addition,a practical engineering-oriented design method of wet joints for PBDPs is the focus to be investigated.This paper can provide a broad view and technical support for the application of PBDPs.
关 键 词:桥梁工程 预制拼装桥面板湿接缝 综述 高性能土木工程材料 力学性能 分析模型
分 类 号:U443.3[建筑科学—桥梁与隧道工程]
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