某钢筋混凝土系杆拱桥加固设计理念述要

Strengthening Design Ideologies of a Through Tied Arch Bridge

梅江桥经荷载检测评定为危桥,禁止人车通行使用,后经方案评审及相关专家研究论证,为保留其特有的历史文化价值,决定采用加固措施重塑其优美外形,恢复其使用功能。本文主要介绍采用植筋、加大截面、预应力钢铰线、预应力吊杆、碳纤维、钢桁架等成熟的加固方式对梅江桥进行合理有效的加固设计方案,并结合计算分析其加固效果。

Mei Jiang Bridge was evaluated as dangerous bridge through test so people and vehicle were forbid to pass.After through project review and research demonstration of related experts,in order to retain its unique historical and cultural values,it was decided to adopt reinforcement measures to rebuild its beautiful shape and restore its using function.This paper discusses how to adopt mature reinforcement methods such as bonded rebar,section enlargement,prestressed steel strand,prestressed hanger,carbon fiber and steel truss etc.to carry out reasonable and effective reinforcement design for this bridge,its reinforcing effect is analyzed combined with calculation.