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预制节段拼装混凝土桥墩利用预应力筋连接墩身节段,质量易控制,施工工期短,现场环境影响小,可实现绿色环保的建设理念,是桥梁工程未来发展方向之一。该文对预制节段拼装桥墩减震耗能构造的概要和研究进行了综述,介绍了纤维混凝土、纵向耗能钢筋以及套筒约束混凝土等常规耗能构造与设计方法,同时,阐述了一系列创新性减震耗能理念,介绍了两种预制节段拼装桥墩减震耗能构造的构思,分析比较了其优缺点,对未来研究方向进行了展望。
The prefabricated segment assembled concrete piers are connected with piers by prestressed tendons, the quality is easy to control, the construction period is short, the environmental impact on site is small and the construction concept of green environmental protection can be realized, which is one of the future development directions of the bridge project. In this paper, the summary and research on seismic energy dissipation structure of prefabricated segment piers are reviewed. The conventional energy dissipation structures and design methods such as fiber reinforced concrete, longitudinal energy-consuming reinforcing steel and sleeve confined concrete are introduced. At the same time, a series of The concept of shock absorption and energy dissipation is introduced. The concept of shock absorption and dissipation structure of two kinds of prefabricated segment piers is introduced. The advantages and disadvantages are analyzed and compared, and the future research directions are prospected.