Construction method of asymmetric cable crane

Abstract

The invention discloses a construction method of an asymmetric cable crane. The engineering terrain situation is integrated, the characteristic of craggedness of large-mileage side mountain is utilized, thus a large-mileage side tower frame is arranged on a mountain slope with the precipitous mountain valley, the terrain height difference is reasonably utilized, thus a construction material of thelarge-mileage side tower frame is saved, stable force-bearing of two sides is ensured, the construction difficulty is also lowered, the distance between the large-mileage side tower frame and the center of a bridge is greater than the distance between a small-mileage side tower frame and the center of the bridge, through formed unequal edge span design, force-bearing balance of the large-mileageside tower frame and the small-mileage side tower frame under the unequal elevation situation is ensured, the structural stability is improved, and the construction method is used for the technical field of bridge construction.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a construction method of an asymmetric cable crane. Background technique [0002] In recent years, large-scale construction of traffic road networks has been underway in various parts of our country, and bridges, as a common structural form across rivers, lakes and seas, are often used in every traffic road network. There are more and more types of bridges, and the construction methods are also different. various styles. Among them, the arch bridge is an important spanning bridge structure with novel style and beautiful appearance in various bridges, and it is more and more widely used in the structural forms of bridges in mountainous valleys and rivers. [0003] The hoisting of arch ribs of arch bridges in mountainous areas and river valleys in China generally adopts cable crane erection or swivel construction, and the terrain on both sides of the bank where plane o...

AI Technical Summary

Problems solved by technology

The shortcomings of conventional construction methods will be exposed

The disadvantage of adopting the equal-span symmetric and separate cable tower cable crane is that the buckle behind the abutment and the cable tower occupy more space, and the cost of site excavation and leveling is relatively large; the amount of steel used for the steel tower of the cable tower Larger, longer construction period, and longer time for construction safety risk control

The disadvantage of adopting the equilateral-span symmetrical and buckle-tower-in-one type cable crane is that under the conditions of steep and complex terrain, the equilateral-span design of the cable crane requires a large amount of blasting and excavation, cumbersome procedures, high cost, and high safety risks.

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