Cantilever hanging bracket and using method thereof

Abstract

The invention relates to a cantilever hanging bracket and a using method thereof. The cantilever hanging bracket comprises a main truss, a traveling mechanism and an anchoring device. The main truss comprises two diamond-shaped truss bodies arranged symmetrically in a horizontal mode. Each diamond-shaped truss body comprises an upper chord, a lower chord, a front chord and a rear chord, wherein the front end of the upper chord and the upper end of the front chord are connected through a front pitch point, the rear end of the upper chord and the upper end of the rear chord are connected through an upper pitch point, the lower end of the rear chord and the rear end of the lower chord are connected through a rear pitch point, the front end of the lower chord and the lower end of the front chord are connected through a lower pitch point, and a column is connected between the upper pitch point and the lower pitch point. A rear horizontal truss sheet is connected between the columns of the two diamond-shaped truss bodies, a front upper cross beam is connected between the front pitch points of the two diamond-shaped truss bodies, the upper chords incline towards the front lower direction, and inclined angles of the upper chords are 15-25 degrees. The cantilever hanging bracket and the using method of the cantilever hanging bracket can achieve generality of a hanging basket main truss and the cantilever hanging bracket, and the cantilever hanging bracket is low in gravity center, good in stability and reasonable in stress.

Description

technical field [0001] The invention relates to a bridge building construction device, in particular to a cantilever hanger and a using method thereof. Background technique [0002] With the development of bridge construction, in order to increase the span of continuous rigid structures, steel-concrete composite beams are widely used in continuous rigid structures. In the construction process, hanging baskets and cantilever hangers are required. The hanging basket and the cantilever hanger cannot be used universally, which makes the construction cost high. In addition, the main trusses of the existing hanging baskets and cantilever hangers mostly use rhombus trusses or triangular trusses. Both rhombus trusses and triangular trusses have the advantage of simple structures, but the compression members of the rhombus trusses (ie: front chords) The center of gravity of the entire hanger is relatively high after the diamond-shaped hanger is used to lift the load, and the additio...

AI Technical Summary

Problems solved by technology

[0002] With the development of bridge construction, in order to increase the span of continuous rigid structures, steel-concrete composite beams are widely used in continuous rigid structures. In the construction process, hanging baskets and cantilever hangers are required. The hanging basket and cantilever hanger cannot be used universally, which makes the construction cost high

In addition, the main trusses of the existing hanging baskets and cantilever hangers mostly use rhombus trusses or triangular trusses. Both rhombus trusses and triangular trusses have the advantage of simple structures, but the compression members of the rhombus trusses (ie: front chords) The center of gravity of the entire hanger is relatively high after the diamond-shaped hanger is used to lift the load, and the additional stress generated by the construction verticality error is large, so that the safety cannot be guaranteed; although the triangle truss can overcome the above-mentioned shortcomings of the diamond-shaped truss, but The triangular truss is light in weight, and in addition to anchoring at the tail, it also needs to increase the weight, so the application is limited to a certain extent

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