After multiple analysis of technical feasibility, economic costs, and construction period, it is decided to adopt a plan 4, that is, 2 30T hand -pilled gourds are used to adjust the position in the air, that is, set up a fetal shelf in the floor, the oblique column, the oblique column first, and the oblique column. For flat fights on the floor, two of which use the fixed rope length, and 2 30T gourds are part of the other two tuning cables; after the slope column is out of the ground, it is about 1m height from the ground. Adjust the length of the inverted chain of the gourd to make the inclined column complete the shape adjustment; then use a tower crane to put it in place. After the thick position, adjust the length of the inverted chain through the secondary adjustment to make the structure accurate.

(1) Determine the center of gravity of the component and the lifting cable length: With the help of the design software Tekla to export the ingenuity of the inclined column in the assembled state, the convergence point of the four suspension cables (No. 1 to 4) is guaranteed on the center of gravity. At present, there are 16m and SWL = 20T suspenders at the scene, so the length of the 1 and No. 2 rope is set to 16m, and then the rope 3 and 4 from the software can be 17.2m. The starting working length of the stage is 17.2 m-16m = 1.72m.

(2) Calculation of the length of the position of the position: Use the design software Tekla to simulate the position state of the position. The focus of the center of gravity is unchanged, and the center of gravity is performed to make all ropes at one point and measure the length of each rope. As shown in Table 2, during the conversion of the whole bit, the length of the rope No. 1 and No. 2 is unchanged. No. 3 and No. 4 can adjust the rope length of 5.5m, so 5.5m is a hand -stroke. length.