Elastic connecting piece and arch rib assembling method

Abstract

The invention discloses an elastic connecting piece and an arch rib assembling method, and relates to the construction field of arch bridges. The elastic connecting piece is bridged at a joint formedby connecting a front arch rib section and a rear arch rib section, the elastic connecting piece comprises an elastic assembly and a matching assembly, the elastic assembly comprises a fixed steel plate A and an elastic matching part, the elastic matching part is a rectangular cylinder, and a pair of cylinder walls are elastic steel plates and friction steel plates A which are oppositely arrangedin parallel at intervals; two side end surfaces of the fixed steel plate A are respectively and vertically connected to the outer side surface of the elastic steel plate and the front arch rib sectionon one side of the joint; the elastic assembly further comprises a plurality of adjusting bolts penetrating through the elastic steel plate; the matching assembly comprises a fixed steel plate B anda friction steel plate B; two side end surfaces of the fixed steel plate B are respectively and vertically connected to the friction steel plate B and the rear arch rib section on the other side of the joint; the friction steel plate A and the friction steel plate B are aligned and fixed. The elastic connecting piece assists in completing the assembling work of the arch rib sections, improves thepositioning speed, and achieves the stress-free closure of the arch bridge.

Description

technical field [0001] The invention relates to the field of arch bridge construction, in particular to an elastic connector and an arch rib assembling method. Background technique [0002] In the process of assembling and constructing the main arch rib segments of arch bridges, hoisting equipment is generally used to hoist the pre-assembled arch rib segments. Since it is a suspended splicing alignment arch rib segment, it needs reciprocating adjustment to move to the ideal design position. After the adjustment is completed, it is welded together with the installed arch rib segment, and then pulled with a buckle cable to prevent the arch rib segment The segment is shifted. [0003] In the above installation method, before the welding is completely completed, the hoisting equipment cannot be unhooked, and the hoisting equipment can only be released after the welding is completed. The utilization efficiency of the hoisting equipment is low. The shaking of the hoisting equipm...

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Problems solved by technology

[0003] In the above installation method, before the welding is completely completed, the hoisting equipment cannot be unhooked, and the hoisting equipment can only be released after the welding is completed. The utilization efficiency of the hoisting equipment is low. The shaking of the hoisting equipment during the process may cause the displacement of the welded arch rib segments, resulting in installation errors. When the arch ribs are assembled with slight errors in the horizontal and vertical directions, we can only wait for the arch bridge to be closed. The rib segments are forcibly pulled together, resulting in redundant secondary stress inside the arch bridge, which is not conducive to structural safety

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