橡胶支座是由多层薄钢板与多层橡胶片硫化粘合而成一种普通橡胶支座产品,这种产品具有足够的竖向刚度,能够将支座上部构造的反力可靠的传递给墩台,支座具有良好的弹性,以应对桥梁的梁端的转动；又有较大的剪切变形能力，以满足上部构造的水平位移。
Rubber bearing is composed of multilayer thin plate and multilayer sheet rubber vulcanization adhesion and a common rubber bearing products, this product has enough vertical stiffness, can force reliable transfer to the pier upper bearing structure, bearing has good flexibility, to rotate the coping bridge of Liang Duan and a larger shear the deformation ability, to meet the horizontal displacement of superstructure.
该产品目前执行的标准为以下三个：
The current standards for the product are below three:
公路行业标准：JT/T4-2004 公路桥梁板式橡胶支座
Highway industry standard: JT/T4-2004 highway bridge plate rubber bearing
铁路行业标准：TB/T 1893-2006 铁路桥梁板式橡胶支座
Standard of railway industry: TB/T 1893-2006 plate rubber bearing for railway bridge
：GB 20668.4-2007 橡胶支座
National standard: GB 20668.4-2007 rubber bearing
普通橡胶支座
Common rubber bearings
具有构造简单、安装方便、节省钢材、价格低廉、养护简便、易于更换等特点。
The utility model has the advantages of simple structure, convenient installation, steel saving, low price, simple maintenance and easy replacement.
在板式支座表面粘复一层1.5mm-3mm厚的聚四氟乙烯板,就能制作成聚四氟乙烯滑板式橡胶支座它除了竖向钢度与弹性变形,能承受垂直荷载及适应梁端转动外,因聚四氟乙烯板的低摩擦系数,可使梁端在四氟板表面自由滑动,水平位移不受限制,特别适宜中、小荷载,大位移量的桥梁使用。
After the Teflon plate 1.5mm-3mm thick layer on the plate bearing surface, can be made of PTFE sliding plate rubber support in addition to its vertical stiffness and elastic deformation under vertical load and can adapt to the rotation of the outer end of the beam, due to the low friction coefficient of PTFE plate, the Liang Duan in the PTFE surface free sliding level the displacement is not restricted, especially suitable for medium and small load, large displacement bridge use.
板式支座按形状划分：
Plate bearings are classified by shape:
矩形板式、圆形、球冠圆板式、圆板坡形等几种产品
Rectangular plate, round, round plate, plate crown slope etc. several products
一、圆形板式橡胶支座
Circular rubber bearing
（一）性能：本产品由多层橡胶片与薄钢板镶嵌、粘合压制而发。有足够的竖向刚度以承压垂直荷载，能将 上部构造的反力可靠地传递给墩台，有良好的弹性，以适应梁端的转动；又有较大的剪切变形以满足上部 构造的水平位移。
1 performance: This product is made of laminated rubber sheet and thin steel plate inlaid, bonded and pressed. There are enough vertical stiffness to bearing vertical load, the upper structure of the reverse force can be reliably transferred to the pier, has good flexibility, in order to adapt to the rotation of the beam end and to meet the horizontal displacement of superstructure of large shear deformation.
（二）特点：本产品在桥梁建筑、水电工程、房屋抗震设施上已广泛应用，与原用的钢支座相比，有构造 简单，安装方便；节约钢材，价格低廉；养护简便，易于更换等优点，且本品建筑高度低，对桥梁设计与降低造价有益；有良好的隔震作用，可减少活载与地震力对建筑物的冲击作用。
two features: This product has been widely used in bridge construction, hyower projects, housing seismic facilities, compared with the original steel bearing, has simple structure, convenient installation steel saving, low price easy maintenance, easy replacement and other advantages, and the low building height, and reduce the cost of bridge design have good beneficial isolation, live load and seismic force can reduce the impact on the building effect.
板式橡胶支座的适用范围
Applicable range of plate type rubber bearing
板式橡胶支座是公路中不型桥梁中比较常用的产品，它分为普通板式橡胶支座、四氟板式橡胶支座。对于普通型桥梁支座适用于跨度小于30m、位移量较小的桥梁.不同的平面形状适用于不同的桥跨结
Plate rubber bearings are commonly used in highway bridges. They are divided into ordinary plate rubber bearing and PTFE plate rubber bearing. The common bridge bearing is suitable for bridges whose span is less than 30m and the displacement is small. Different plane shapes are applicable to different span of bridges
