引言在以往传统的桥梁设计中,都设有伸缩缝、辊轴支座和其他结构释放装置等,以防止桥梁因温度变化引起的热胀冷缩造成结构损坏。但这些伸缩缝往往增加桥梁的初期投资,且使用几年以后就得进行彻底维修,否则就不能再正常发挥其功能。因此,无伸缩缝的整体式桥台桥梁(图1)在本质上乃是一种初期投资较低和维修费用较小的设计方案。在以 Introduction In the traditional bridge design in the past, there are expansion joints, roller bearings and other structures to release devices, in order to prevent the bridge due to temperature changes caused by thermal expansion and contraction caused structural damage. However, these expansion joints tend to increase the initial investment of the bridge and, after several years of use, have to be thoroughly repaired or the function can no longer function properly. As a result, a monolithic bridge abutment without expansion joints (Figure 1) is essentially a design with lower initial investment and less maintenance costs. In