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六四式抢修钢梁由于具有单元重量轻、构件种类少、结构强度高、拼架速度快,以及能组成各种用途的临时性工程结构物等优点,已在铁路、公路和其他基本建设工程中获得广泛运用。为了安装、拆卸快速方便,构件间采用圆柱形钢销连接,因此钢销与连接钣间存在销与孔、钣与钣的间隙。这种间隙的存在,降低了结构物的纵向横向刚度,限制了行车速度。石家庄铁
Due to its advantages of light unit weight, small component types, high structural strength, fast framing speed, and temporary engineering structures that can be used for various purposes, the June 4 steel beam repairs have been widely used in railway, highway and other capital construction projects In a wide range of applications. In order to install and disassemble quickly and easily, the members are connected by cylindrical steel pins, so there is a gap between the pins and the holes, the sheet and the sheet metal between the steel pins and the connecting sheet. The existence of such gaps reduces the longitudinal transverse stiffness of the structure and limits the speed of travel. Shijiazhuang iron