弹性混凝土拼缝在桥梁拼宽中的应用

Application of Elastic Concrete Joint in Bridge Widening

摘要:

随着经济的高速发展，物流需求越来越高，道路的通行能力受限日益显著。在道路扩容过程中，为降低建设费用，对桥梁普遍采用拼宽的结构形式。为避免新老桥结构的相互影响，保证桥面连续的同时，兼顾安全、美观、行车舒适，可采用弹性混凝土拼缝。该拼缝形式相较于传统拼宽方式应用范围较小，结合实际项目情况，从结构设计、材料选用、施工、验收、造价等方面进行具体分析，为类似工程建设提供参考。

Abstract:

With the rapid development of economy, the demand of logistics is higher and higher, and the traffic capacity of road is more and more limited. In order to reduce the construction cost during the expansion of the road, the structure form of widening is generally adopted for the bridges. To avoid the interaction between the new and old bridge structures, ensure the continuity of the bridge deck, and take into account the safety, beauty and driving comfort, the elastic concrete joint can be used. Compared with the traditional widening method, the application range of this widening method is smaller. Combined with the actual project situation, the structural design, material selection, construction, check, acceptance, cost and the other aspects are analyzed in detail, which provides the reference for the construction of similar projects.