A connection shaft disk and a method for using it to carry out cable hoisting arch bridge construction

Abstract

The invention relates to the field of bridge engineering construction, in particular to a connecting shaft disc and a method for utilizing the same for arch bridge cable hoisting construction. The connecting shaft disc comprises two supporting plates and two steel base plates hinged to the two supporting plates. The two ends of the supporting plates are bent into supporting feet which are provided with first through holes. Steel bars are welded to the back face of each steel base plate, and two sets of pad feet with slopes are welded to the front face of each steel base plate and provided with second through holes. During construction, firstly, the steel base plates are embedded into arch box hoisting sections; secondly, one supporting foot is connected with one second through hole according to conditions; thirdly, the two supporting plates are fixed through steel channels; and fourthly, the supporting plates are completely buried through cast-in-place concrete. The two arch box hoisting sections are connected through the connecting shaft disc and the method, and since the angle between the two supporting plates can be adjusted, the joint length of an arch bridge can be adjusted, and therefore the purposes of indirectly adjusting the arch axis length and height difference are achieved, forced joining is prevented, and the connecting shaft disc is convenient, practical, safe, reliable and low in cost.

Description

technical field [0001] The invention relates to the field of bridge engineering construction, in particular to a connecting shaft disc for cable hoisting arch bridge construction, and also provides a method for using the connecting shaft disc to carry out cable hoisting arch bridge construction. Background technique [0002] The cable hoisting construction method is a method of hoisting prefabricated components into a bridge through a cable system. The cable hoisting system can be divided into four basic components according to its working nature: main cable, working cable, tower and anchoring device. Among them, working cables: including hoisting cables, pulling cables and buckling cables, etc. The working principle of cable hoisting is to use the main cable to bear the load and serve as the running track of the sports car. The lifting device and traction device on the main cable car will lift, lift, transport and install the components. The cable hoisting method is mostl...

AI Technical Summary

Problems solved by technology

The cable hoisting method is mostly used in the hoisting construction of arch bridges. In the hoisting of arch bridges, due to the difference in size between the prefabricated arch box and the arch box in the design of the construction drawing, the displacement and length of the arch axis after closing in the actual construction of the hingeless arch bridge will change, seriously There will also be a phenomenon of forced closing, which will cause the concrete at the joint of the arch box to be crushed, causing local instability, or even failure to close.

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