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一、工程概况北京铁路局昌平构件厂某库棚,建在两条铁路专用线之间,两条铁路均为曲线,并有不同的曲率半径。为了更好的满足装卸站台的使用,要求屋盖能覆盖两条铁路线之间的全部面积,共1200余平方米。结合该工程的具体情况,设计了大悬臂П形折板屋盖。于1979年12月建成。整个屋盖为双跨,两边带挑檐,挑檐长3.0米。横向跨度为变数,两条相邻轴线相差333毫米。最小端跨度为:7.5米+7.5米,
I. Project Overview A storage shed of the Beijing Railway Bureau Changping Component Plant is built between two railway special lines. Both railways are curved and have different radii of curvature. In order to better meet the use of loading and unloading platforms, it is required that the roof covers the entire area between the two railway lines, totaling 1,200 square meters. Combined with the specific conditions of the project, a large cantilever П-shaped flap roof was designed. Built in December 1979. The entire roof is a double span with provocative on both sides and the provocation is 3.0 meters long. The lateral span is a variable, with a difference of 333 mm between two adjacent axes. The minimum end span is: 7.5 meters + 7.5 meters.