非结构可更换构件提升桥梁震后可恢复性的研究进展

Research on Improving Post Earthquake Resilience of Bridges Using Nonstructural Replaceable Components

为利用非结构可更换抗震构件降低地震灾害对桥梁主体结构的损伤,以快速恢复震后桥梁正常使用。文中从桥梁抗震设计思想的转变出发,梳理震后可恢复功能结构中非结构可更换构件体系的研究进展;围绕非结构可更换构件体系在桥梁工程中的研究与应用,阐述国内外非结构可更换构件的类别、抗震性能、构件恢复途径及其现有可恢复评估方法的主要特征。为未来对非结构可更换构件的材料、构造形式进行挖掘开发,对桥梁震后可恢复结构的可恢复性评估的方法与标准等方面研究提供了新思路。

The replaceability of non structural seismic elements is utilized to reduce the damage to the main structure of a bridge from earthquakes,thus restoring its normal use quickly.Starting with the transformation of the ideas of bridge seismic design,this paper reviews the research progress of the non structural replaceable component systems in post earthquake resilient functional structures.Based on the existing research on and applications of non structural replaceable member systems in bridge engineering,the paper describes the categories and seismic performance of non structural replaceable members,member recovery paths and the main features of existing recoverable assessment methods.This study provides new ideas for further research on the development of materials and construction forms of non structural replaceable elements,and methods and criteria for assessing the recoverability of the recoverable structures after earthquakes.