Pi-shaped bracket for construction of Y-shaped pier continuous beam and mounting and construction method thereof

Abstract

The invention relates to a pi-shaped bracket for construction of a Y-shaped pier continuous beam and a mounting and construction method thereof. The pi-shaped bracket comprises a base, two pre-embedded parts, two sand boxes, two main pillars, a cross brace, two diagonal braces, an upper cross beam and a plurality of longitudinal beams; the base is installed between two inclined limbs of a Y-shapedpier; the two pre-embedded parts are respectively mounted on the bottoms of the two inclined limbs of the Y-shaped pier, and are respectively fixed to the base; the two sand boxes are symmetrically mounted on the base; the two main pillars are respectively vertically mounted on the two sand boxes, and constitute an H-shaped structure together with the cross braces; the bottom ends of the two diagonal braces are respectively connected to the middles of the two main pillars; the upper cross beam is horizontally mounted on the two main pillars, the cross brace and the two diagonal braces; and the plurality of longitudinal beams are respectively mounted on the top of the upper cross beam. The pi-shaped bracket has the advantages of simple structure, integral lifting, reducing construction difficulty, improving construction safety, improving construction quality, saving construction period and cost and the like.

Description

technical field [0001] The invention relates to the technical field of bridge engineering construction, in particular to a π-shaped support for Y-shaped pier continuous beam construction and an installation and construction method thereof. Background technique [0002] Y-shaped piers are widely used in municipal / highway bridge projects, such as figure 1 As shown, the Y-shaped pier includes a cap y1, a vertical pier column y2, two oblique limbs y3 and a continuous beam y4. The cap y1 acts as a bearing, and the vertical pier column y2 is installed on the cap y1. The bottoms of the two oblique limbs y3 are connected to the vertical pier columns y2 respectively, and the tops extend to the two outer sides of the vertical pier columns y2 respectively. The vertical pier columns y2 and the two oblique limbs y3 form a Y-shaped structure, and the continuous beam y4 Across the two oblique limbs y3, it often uses a box girder. [0003] The construction characteristics of continuous be...

AI Technical Summary

Problems solved by technology

However, the construction process of this method is complicated and the cost is high, which is not conducive to saving the construction period, and the construction difficulty will increase when the bridge width is large

Another construction method is to set embedded parts or reserved holes on the upper end of the oblique limb of the Y-shaped pier, and then install the beam bottom mold support and the 0# block bottom mold. Although this method has a short construction period, the oblique limb of the Y-shaped pier is affected Large force, high construction safety risk

Images