节段预制拼装桥梁耐久性设计要点研究

Research on Key Points of Durability Design of Precast Segment Assembling Bridge

节段预制拼装桥梁由于其施工便捷性目前在桥梁建设中应用广泛,由于其自身的特殊性,在耐久性方面要给予足够的重视,特别是对节段拼缝的处理和预应力体系的耐久性设计。在充分研究节段预制拼装桥梁的特点的前提下,分析这类桥梁的设计经验,针对其耐久性设计提出关键性控制技术,对这类桥梁的设计和施工提供参考。

Due to it's construction convenience,precastsegment assembling bridge are widely used in bridge construction at present.And we should pay enough attention to durability becauseofit's particularity,especially to the treatment of segment-assembled joints and durability design of prestressed systems.On the premise of fully studying the characteristics of segment prefabricated bridge,this paper analyzes the design experience of this kind of bridge,and put forward to the key control technology for it's durability design,to provide reference for the design and construction of this kind of bridge.