桥梁护栏提升改造的设计与应用

Design and Application of Guardrail Lifting Reconstruction of an Active Bridge

现役桥梁加固改造中,护栏的安全性是重中之重。文中针对旧护栏结构的缺陷和不足,以厦门市某一现状旧桥的金属梁柱式护栏改造为例,采用常见的植筋工艺,结合规范和计算分析,给出了详细的设计思路,并围绕施工过程中遇到的问题提出了有针对性的技术措施,为完善现役桥梁防护设施、提升桥梁通行防护能力提供参考。

In the reinforcement and reconstruction of existing bridges, the safety of guardrails is the top priority. In view of the defects and deficiencies of the old guardrail structure, taking the transformation of the metal beam column guardrail of an existing old bridge in Xiamen as an example, the paper uses the common planting reinforcement technology, combined with the specifications and calculation analysis, gives a detailed design idea, and puts forward targeted engineering technical measures around the problems encountered in the construction process,which provides a reference for improving the existing bridge protection facilities and improving the bridge traffic protection capacity.