Single-bearing-platform separated pier column expansion joint construction device and construction method

Abstract

The invention discloses a single-bearing-platform separated pier column expansion joint construction device and a construction method. The single-bearing-platform separated pier column expansion jointconstruction device comprises an inner mould frame, wherein the inner mould frame is formed by two mould frames in a U-shaped frame structure, and two expansion joint steel plates are respectively and correspondingly laid between the two mould frames in the U-shaped frame structure, a finish rolling threaded steel bar is installed between the two expansion joint steel plates, an outer mould framesleeves the exterior of the inner mould frame, all structures related by the construction device are detachable, the multiple times of recycling of the device are realized, the economic cost is low,and the popularization and application are easy. The rigidity of the expansion joint steel plates is used, a phenomenon that the inner wall of an expansion joint is unsmooth while the expansion jointis filled with a foam board is avoided, and a problem that the foam board is not easily taken out because the foam board is adhered to concrete and reserved in the expansion joint is also solved. A width of the reserved expansion joint can be accurately determined through the expansion joint steel plates and the finish rolling threaded steel bar, after casting, the clamped finish rolling threadedsteel bar can be directly drawn out through a hydraulic jack, the operation is safe and convenient.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a construction device and a construction method for expansion joints of separated pier columns with a single cap. Background technique [0002] Expansion joint refers to a structural joint set at an appropriate position along the construction joint direction of a building or structure in order to prevent cracks or damage to the structure due to climate temperature changes (thermal expansion, cold contraction). The expansion joint is to divide the building components above the foundation, such as walls, floors, piers, etc., into two independent parts, so that the building or structure can be horizontally expanded along the long direction. [0003] Reserve gaps at certain distances along the length of the building to disconnect the building from the roof, walls, floors and other components above the ground. The foundation of the building does not need to be disconnected b...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a construction device and construction method for expansion joints of single-cap separated pier columns, which solves the problem that the foam boards filled today are left in the concrete and are difficult to take out, and the foam boards have no rigidity, resulting in The problem that the poured expansion joint is not straight

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