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桥梁伸缩缝指的是为满足桥面变形的要求,通常在两梁端之间、梁端与桥台之间或桥梁的铰接位置上设置伸缩缝。要求伸缩缝在平行、垂直于桥梁轴线的两个方向,均能自由伸缩,牢固可靠,车辆行驶过时应平顺、无突跳与噪声;要能防止雨水和垃圾泥土渗入阻塞;安装、检查、养护、消除污物都要简易方便。在设置伸缩缝处,栏杆与桥面铺装都要断开。笔者结合施工实践,浅探如何严格抓好桥梁伸缩缝质量控制,提升道路桥梁的运用效率。
Bridge expansion joints refers to meet the requirements of deformation of the bridge deck, usually between the two ends of the beam, beam ends and bridge abutments or bridge hinge position set expansion joints. Requires expansion joints in parallel, perpendicular to the axis of the bridge in both directions, are free to telescopic, solid and reliable, the vehicle should be smooth and time-out, no sudden jump and noise; to prevent the infiltration of rain and garbage dirt blocking; installation, inspection, maintenance Elimination of dirt should be easy and convenient. In setting the expansion joints, railings and deck pavement should be disconnected. The author combined with the construction practice, to explore how to strictly control the quality of the bridge expansion joints, improve the efficiency of the use of road and bridge.