论文部分内容阅读
一、概述橡胶支座是目前较完善的桥梁支座,具有构造简单,加工制造方便,滑动摩擦系数低,转动灵活,重量轻,安装或更换简便,节省钢材,造价低,建筑高度低,料源充足,适用范围广等优点,所以橡胶支座特别是板式橡胶支座,得到了迅速广泛的运用。国际铁路联盟对橡胶支座进行了多年的研究,于1969年颁布了“铁路桥梁橡胶支座使用规范”,对使用橡胶支座的范围、类型、支座设计、安装养护和检杏都作了详尽的规定,为电站施工栈桥选用橡胶支座提供了可靠的依据。我国于1965年在公路桥梁上开始应用橡胶支座,1969年用于铁路桥梁。十余年在中小型跨度的公路和铁桥上的运行实践证明,无论是钢筋混凝土结构、钢结构;还是梁式、斜拉式、连续式桥跨,使用这类新型橡胶支座,性能可靠,效果良好。
I. Overview Rubber bearing is the most complete bridge bearing, with the advantages of simple structure, convenient processing and manufacturing, low sliding friction coefficient, flexible rotation, light weight, easy installation or replacement, steel saving, low cost, low building height, Sufficient source, the advantages of a wide range of applications, so rubber bearings, especially plate rubber bearings, has been widely used quickly. The International Union of Railways has studied rubber bearings for many years. In 1969, the “Code for the Use of Rubber Bridges for Railway Bridges” was promulgated. Both the scope and type of rubber bearings used, the design of bearings, the installation of maintenance and apricots were all made Detailed rules provide a reliable basis for the selection of rubber bearings for the power station construction trestle. China started to apply rubber bearings on highway bridges in 1965 and used railway bridges in 1969. More than ten years of operation on small and medium-span highways and iron bridges have proved that the performance of this type of new rubber bearings is reliable, no matter whether it is reinforced concrete structure or steel structure, or beam type, oblique pull type and continuous bridge span , Good effect.