Horizontal force self-balancing type splayed heavy type upper air support system and installation method thereof

Abstract

The invention discloses a horizontal force self-balancing type splayed heavy type upper air support system and an installation method thereof. The system comprises multiple stress units arranged at intervals. The stress units are connected through connecting rods. Each stress unit comprises an upper steel corbel, a lower steel corbel, a splayed steel frame, a horizontal supporting rod and an oppositely-pulling prestress inhaul cable, wherein the upper steel corbel and the lower steel corbel are embedded in bridge body tower columns on the two sides, the two ends of the splayed steel frame are correspondingly arranged on the upper steel corbel and the lower steel corbel, and the horizontal supporting rod is connected between the lower ends of the splayed steel frame. The support system is supported on the tower columns, so that a huge and complex support system of a landing support is omitted. The support system is large in bearing capacity and application span and no disadvantageous horizontal force is generated to the bridge body tower columns; and the support system is formed by connecting the units and through the combination of the units, the support system can be suitable for beams of different widths.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a horizontal force self-balancing figure-eight heavy-duty high-altitude support system and an installation method thereof. Background technique [0002] With the development of modern transportation, bridges such as cable-stayed bridges and suspension bridges have become more and more widely used, and the spans of tower columns and beams have also become larger and larger. For conventional structures such as tower beams with large spans, Bailey beams, and universal beams, it is impossible to implement beam construction in one span, while the new truss structure has a large structure and a large number of components, and the on-site construction is inconvenient and the economic cost is high. , so the floor support method is generally used. In the ground support method, the support is generally supported on the main beam of No. 0 block, and the floor support generally a...

AI Technical Summary

Problems solved by technology

In the ground support method, the support is generally supported on the main beam of No. 0 block, and the floor support generally adopts steel pipe, section steel, bowl buckle support, etc. There are also the following defects when using this method for beam construction: the distance between the tower column and the beam is relatively high, and the pouring The bracket is relatively high, and there are more materials attached to the wall in the horizontal direction, and the overall material consumption is relatively large. With the increase of the bracket, the stability along the bridge becomes worse and worse, and the supporting steel pipe will also produce unfavorable vertical concentration force on the main beam of No. 0 block

Images