公路桥梁连梁装置研究进展

Research progress of the unseating prevention devices for highway bridge

基于落梁震害给人们带来的惨痛教训,世界各国学者对落梁防止装置展开深入研究,以提高桥梁结构的抗震能力。连梁装置是一种防止落梁震害的有效措施。本文首先对连梁装置特点和使用范围进行了概述,并介绍了常用的连梁装置类型。然后介绍了目前常用的连梁装置设计方法,并对连梁装置设计方法的研究进展进行总结。针对目前连梁装置研究的现状,进一步研究连梁装置的设计思想和方法,对连梁装置的后续研究及工程应用起到推动作用。

Based on the painful lessons that people suffered from falling beam damage,scholars from all over the world have conducted in-depth studies on falling beam prevention devices to improve the seismic performance of bridge structures. Unseating prevention devices is an effective measure to prevent the bridge beams falling down from the earthquake damage. Firstly,the characteristics and application range of the unseating prevention devices are summarized,and the common types of unseating prevention device are introduced. Then the commonly used design method of unseating prevention devices are presented,and the research progress of the design method of unseating prevention devices are summarized. In view of the current status of research on unseating prevention devices,the design ideas and methods of unseating prevention devices are further studied,which plays a role in the follow-up research and engineering application of unseating prevention devices.