Connecting device for bridge construction and bridge construction method

Abstract

The invention belongs to the field of bridge engineering and discloses a connecting device for bridge construction and a bridge construction method. A first steel cushion plate is anchored at the endof the first arch box hoisting section, and the second steel cushion plate is anchored at the end of the second arch box hoisting section. A left support plate and a right support plate are arrange crosswise with each other and are axially connected at that crosswise position; the whole structure after the left support plate and the right support plate are axially connected is arranged at the joint between the first arch box hoisting section and the second arch box hoisting section, the two ends of the left support plate are fixedly connected with the first steel pad plate and the second steelpad plate, and the two ends of the right support plate are fixedly connected with the first steel pad plate and the second steel pad plate, respectively. A section steel is fixedly connected betweenthe left support plate and the right support plate; the space formed between the first steel cushion plate and the second steel cushion plate is filled with cast-in-place concrete. Through the connecting device, the joint length of the arch bridge can be freely changed, and the length and displacement of the arch axis can meet the design requirements, which is convenient and practical, and can increase the stability of the arch bridge construction.

Description

technical field [0001] The invention belongs to the field of bridge engineering, and relates to a connecting device for bridge construction and a bridge construction method. 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 mostly used in the hoisting construction of arch bridges. In the hoisting of arch bridges, due to the difference in size between...

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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