Arch slab permanent connection fixture and method

Abstract

The invention provides a device and method for permanently connecting and fixing arch plates. It includes a pair of U-shaped end faces of prefabricated arch slabs, and a pair of bottom plates are installed on the bottom of the end faces of prefabricated arch slabs. A small connecting plate is installed on the left end face of the plate end face, and a large connecting plate corresponding to the position of the small connecting plate is installed on the upper right end face; the left and right end faces are fixed by connecting the small connecting plate and the large connecting plate through a beam; An oblique beam is also connected between the large connecting plate and the bottom plate of the left end face for fixing; and the method for connecting and fixing with this device. The invention can improve the installation quality of the prefabricated arch slabs, speed up the installation speed of the prefabricated arch slabs, save the investment of a mechanical shift, and at the same time make the arch slab joint fixing method simple, convenient for on-site operation, and ensure safety.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a permanent connection and fixing device and method for arch slabs used for butt joint installation of bridge prefabricated slabs. Background technique [0002] In the installation process of bridge prefabricated arch slabs, the positioning and fixing of prefabricated arch slab joints is one of the key processes. The most time-consuming, it is necessary to wait for the welding of the connecting steel bars at the end of the arch slab to be completed, and the concrete at that place reaches a certain strength before proceeding to the next process of construction. If the control is not good, it will easily cause quality hazards and safety accidents. And once quality and safety problems occur during the installation process, the post-processing is very difficult. [0003] At present, domestic prefabricated arch slabs are mostly connected by pre-embedded steel bar joints...

AI Technical Summary

Problems solved by technology

[0004]The installation efficiency of this process is low, there are many links, the cycle is long, the installation quality is greatly affected by factors such as time and environment, the molding quality is not easy to control, and there are certain safety hazards

During the installation of on-site prefabricated arch slabs, due to the insufficient support of the steel bars at the joints, the installation line of the arch slabs cannot be on the same arc, and even the settlement at the joints is uneven, causing the welded steel bars to be strained. , affecting the overall landscape effect of the arch bridge

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