Pier formwork for road and bridge construction

Abstract

The invention discloses a pier column formwork for road and bridge construction, which comprises two half formworks, T-shaped card slots are provided at the adjacent ends of the two half formworks, and the two adjacent card slots An I-shaped plate is interposed, and a top plate is fixed on the end of the I-shaped plate away from the inner side of the half-formwork, and the end of the top plate extends to the outside of the outer wall of the half-formwork, and two The two arc-shaped plates attached to the outer wall, each of the arc-shaped plates has a socket through it, and a U-shaped bar is arranged on the outside of the joint of the two half-formworks. The present invention inserts the I-shaped plate to connect and fix the half-formwork, which avoids the problem of easy loosening of the traditional fixation by the outer hoop, and then through the continuous contact and impact of the impact ball with the half-formwork and the upward movement of the top plate, the concrete and the retaining plate are realized. The detachment of the connection between the board and the half-formwork realizes quick demoulding and avoids damage to the board or pier.

Description

technical field [0001] The invention relates to the technical field of pier columns, in particular to a pier column formwork for road and bridge construction. Background technique [0002] Pier column, that is, the lower load-bearing object used to carry the upper structure in civil engineering. Most of the cross-sections of piers are circular, and there are also heterosexual piers such as ellipse, square, curve, and parabola. It is an important part of highway bridges, railway bridges, sidewalks and other bridges, overpasses, ramp bridges, overpasses and other projects. As an important part of bridges, pier columns have a profound impact on the overall stability of bridges in terms of appearance design and quality management. Impact. [0003] For the production of pier columns, the formwork is generally assembled first, then the external reinforcement of the formwork is carried out, and the release agent is applied on the inner wall of the formwork, and then the subsequen...

AI Technical Summary

Problems solved by technology

[0004] 1. The pier column is fixed by the outer frame or the outer hoop, and the outer frame is fixed by bolts, etc., which is easy to loosen itself, or the outer hoop expands and loosens due to the expansion of the concrete;

[0005] 2. Even if the release agent is applied, the uniformity cannot be guaranteed, and the pier column is still tightly attached to the inner wall of the formwork, which is not convenient for the subsequent removal of the formwork;

[0006] The traditional method of directly pulling the formwork to the outside to remove the formwork may cause damage to the formwork or the pier due to the connection between the formwork and the pier

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