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Abstract

In recent years,with the continuous expansion of highway bridge construction in China,there has been a growing public demand to enhance road safety and the protective capabilities of highway bridges.To meet the engineering application requirements of various bridge forms and bridge guardrails,diverse connection structures between bridge guardrails and bridge decks have been studied both domestically and internationally.However,in current engineering practice,the selection of these connection forms remains challenging,lacking clear reference criteria.Using the analytic hierarchy process and supported by experimental data,this paper comprehensively analyzed the advantages and disadvantages of these connection forms by considering factors such as guardrail protection effectiveness,load-bearing reliability,construction convenience,and ease of post-collision repair.The results show that for precast concrete guardrails,embedded grouting connections and embedded steel plate connections exhibit superior overall performance;for metal beam-and-post guardrails,the traditional tapping plate connection remains the optimal choice,while other novel connections may be suitable for special protection needs or specific scenarios.These findings provide a reliable reference for further improving the design of connections between bridge guardrails and decks.

Publication Date

8-15-2025

DOI

10.14048/j.issn.1671-2579.2025.04.014

First Page

112

Last Page

121

Submission Date

August 2025

Reference

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