一、概述当前,世界各国的桥梁设计都趋向于尽可能少地设置桥面伸缩缝,这不仅是由于伸缩缝容易损坏和维修费用昂贵,更重要的是伸缩缝对美观和行车安全非常不利。如汽车持续撞击路面会发出令人厌烦的噪声等,是人们所抱怨的问题。在美国,有一次一辆 I. Overview At present, the bridge design in all countries of the world tends to set the bridge expansion joints as little as possible. This is not only because the expansion joints are easily damaged and the maintenance is expensive, but more importantly, the expansion joint is very detrimental to beauty and driving safety. It is a problem that people complain about as cars constantly annoying annoying noise bumping into the road. In the United States, there is one at a time