四、建筑起重机的安装虽然在选择建筑起重机时,已经考虑到以后安装问题,可是在设计工地上架设起重机的设备时,还必须遵守其他的安全规程和制造厂说明书上的规定。铺设起重机轨道时最重要的基本规则是(图11): ——起重机轨道的铺设必须水平; ——枕木每边应超过轨距的10％左右; ——在地基边坡上缘的非负荷保护地带至少需留60厘米。当有大的暂时负荷时,在 IV. Installation of construction cranes Although the installation problems have been considered when selecting a construction crane, the installation of crane equipment on the design site must comply with the other safety regulations and the manufacturer’s instructions. The most important basic rule when laying crane rails is (Fig. 11): - The laying of crane rails must be horizontal; - Each side of the sleeper should exceed about 10% of the gauge; - Non-load protection on the upper edge of the slope of the foundation At least 60 cm must be left in the zone. When there is a large temporary load,