桥梁伸缩缝开口宽度的分析

Analysis of Opening Width of Bridge Expansion Joint

公路桥梁伸缩装置,在桥梁结构中直接承受车轮荷载的反复冲击,又由于使用环境恶劣,所以要求质量高。影响伸缩装置因素很多,其中确定一个合理的开口宽度是确保伸缩装置安全使用的一个重要因素。文章探讨伸缩装置开口宽度(伸缩量)的计算方法,以便合理确定桥梁伸缩缝的宽度,便于设计和施工时能正确的选择伸缩装置。

It is the expansion installation that undertakes directly the repeated impact from vehicle wheels in bridge deck and the hard working conditions have posed a high requirement for the quality of the expansion joint. One of the most important factors that will ensure safe usage of the expansion installation is to get a reasonable fix on the opening width of the expansion joint. The article will focus on the fixdng ways of the opening width of the expansion joint and it will help the correct choice of the expansion installation in the design and construction of bridge deck.