为防止地震力作用下梁体发生坠落 ,一般要在墩台顶帽设置挡墙 (块 ) ,并在梁体与挡墙间设缓冲材料。这种缓冲材料以往多用刚性较低的橡胶 ,为了吸收大地震产生的冲击能量 ,其形体尺寸往往较大。这里介绍的新型缓冲材料 ,属热可塑弹性高分子化合物 ,它兼有橡胶和工程塑料的特性 In order to prevent the earthquake body under the action of beam body fall occurs, generally in the piers top hat set wall (block), and between the beam body and retaining wall cushioning material. In the past, this kind of cushioning material used more low-rigidity rubber, and its body size tends to be larger in order to absorb the impact energy generated by a large earthquake. The new cushioning material introduced here is a thermoplastic elastomeric compound that combines the properties of rubber and engineering plastics