整体式桥梁的设计理念和实践关键问题

Key issue of application and design concept of integral bridges

分析了整体式桥梁的结构特点和技术优势,指出其构造的型式主要体现在桥台设计承载型式上。归纳了整体式桥梁的设计理念和要点,与普通桥梁的区别主要体现在桥台、桩柱、引道板的设计上面,并分析了设计注意要点。最后,讨论了整体式桥梁的应用实践问题,重点对其桥梁跨长、应用型式如弯桥和斜桥、基础条件等方面的应用范围进行了分析。相关总结和经验可为整体式桥梁的设计实践提供参考。

The structural features and technique advantages of integral bridges are analyzed,which highlights the difference of structural types depend on the design of bridge abutment. The main design concepts and essentials of integral bridges are summarized,and their differences with common bridges are the design of abutment,pier,and approaching slab,and further their design essentials are concluded. Finally,the application issues of integral bridges are discussed with special concerns focused on bridge span length,application type such as curved bridge and skew bridge,and foundation conditions. The experience and conclusions in the paper could further provide reference for the design of integral bridges.