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本文针对中小位移量伸缩缝构造进行设计研究,提出了一种常温固化型桥梁伸缩缝。经过对伸缩量△=20cm,△=40cm的多座桥梁的实验应用表明,这是一种适用于中小位移量桥梁中性能良好的伸缩缝,施工简便。其桥缝具体结构为,在两侧拍击区采用钢纤维混凝土增强,缝内用高分子聚合物与一定比例的水泥及掺合物拌和均匀,经一段时间与桥面加固铺装层固化成具有较高弹性和一定强度的整体式桥梁伸缩缝。其效果良好,供应用参考。
In this paper, small and medium displacement expansion joint structure design and research, proposed a room temperature curing bridge expansion joints. After the expansion of the amount of △ = 20cm, △ = 40cm experimental application of a number of bridges show that this is a suitable small and medium displacement bridges in the good performance of expansion joints, the construction is simple. The specific structure of the bridge cracks in the slap on both sides of the area with steel fiber reinforced concrete, the seam polymer with a certain percentage of cement and admixture mixing evenly, after a period of time and bridge deck reinforcement layer curing Integral bridge expansion joint with higher elasticity and certain strength. The effect is good, for reference.