Saddle cover hoisting construction organization design document
The center mileage of the right main cable saddle cover of the north tower is YK21+315.578, and the left center mileage is ZK21+318.589; The center mileage of the right main cable saddle cover of the south tower is YK22+965.578, and the left center mileage is ZK22+968.589. The main cable saddle cover is a steel structure, which consists of a skeleton, a ribbed bulkhead tower, and an end shield. The saddle cover skeleton is welded to the embedded steel plate on the top of the tower. The saddle cover is assembled in two halves. The maximum weight of hoisting components is about 8T. According to the design data, the main cable saddle cover of the south tower and the left main cable saddle cover of the north tower are directly installed by the existing tower crane (brief). The right main cable saddle cover of the north tower is installed by the cantilever derrick mast. The derrick mast main mast, cantilever rod and large support rod are made of φ 325 × 10 steel pipes, and the other diagonal braces are made of 2 [14 combinations. The maximum length of the north tower saddle cover assembly is 11.896m, the width is 5.02m, and the height is 6.246m; The saddle cover assembly of the south tower has a maximum length of 11.797m, a width of 5.02m and a height of 6.347m.
