市政桥梁工程中,毛勒型伸缩缝(简称毛勒缝)的应用十分普遍。毛勒型伸缩缝的工作原理是在梁板与梁板之间或者梁板与桥面之间用两根异型钢固定,并在两根异型钢之间留有足够大的空隙,使梁板或桥台有自由伸缩的空间,保证桥梁的各部结构在温度应力下不致破坏。毛勒缝的安装一般在桥 Municipal bridge project, the Mailer-type expansion joints (referred to as Maore seam) the application is very common. Mahler-type expansion joint works in the beam plate and the beam or between the beam and the deck with two special-shaped steel fixed, and in between the two special-shaped steel left a large enough gap between the beams Or abutment free telescopic space to ensure that the structure of the various parts of the bridge under the temperature stress will not be destroyed. Maoris seam installation generally in the bridge