Abnormal pier cap template with large section

Abstract

The invention discloses an abnormal pier cap template with a large section and an installation method thereof. The abnormal pier cap template with the large section is characterized in that a front surface template and a back template which are symmetrically arranged are divided into modules respectively positioned at the upper part, lower part, left part, middle part and right part of each template; side templates which are symmetrically arranged consist of a left template and a right template; and the left and the right templates are divided into modules respectively positioned at the upperpart, lower part, left part and right part of each template. The template disclosed by the invention is totally divided into twenty eight modules, wherein the front surface temperate and the back template are respectively divided into eight modules, the left and the right temperates are respectively divided into six modules, the largest module area is 10.5 square meters and the weight of the largest module is less than 2 tons, and the area and the weight are proper, therefore, hoisting and dismounting are more convenient, and the safety risk is effectively reduced.

Description

technical field [0001] The invention relates to a formwork structure and an installation method thereof, more specifically to a large-section special-shaped pier cap formwork and an installation method thereof used in railway passenger dedicated lines. Background technique [0002] The main bridge of the Shanxi-Shaanxi Yellow River Super Bridge on the Daxi-West Railway Passenger Dedicated Line in my country is a 15-connected 2×108m single-T rigid steel truss-stiffened composite box girder structure. The beam structure has a large section and a large span. The beam bottom width is 11.5m, the beam surface width is 13.8m, the web height is 12.5m, the pier body height reaches 38m, and the pier body section is 8×11.5m round end shape. The construction of the structure is difficult and the safety risk is extremely high. In order to meet the technical requirements such as the large self-weight and bending moment of the bearing beam, a large-sized special-shaped pier cap structure ...

AI Technical Summary

Problems solved by technology

In order to meet the technical requirements such as the large self-weight and bending moment of the bearing beam, a large-volume special-shaped pier cap structure is adopted. The specific setting is that the cross-sectional size of the top of the pier cap is also 8×11.5m, and the shape of the pier cap is changed from 8×11.5m round end The shape gradually becomes a rectangle of the same size, and the arc formwork at the lower part of the pier cap is inclined to the outside. If the division scheme of formwork processing and production is unreasonable, it will lead to very difficult construction and very prone to safety and quality accidents

If the blocks are too large, it will be very difficult to manufacture, transport, hoist and dismantle the formwork, and it will be easily deformed; if the blocks are too small, the rigidity and stability of the formwork will be greatly reduced, and the construction safety risk will be increased. and the linear shape and appearance of the concrete will be difficult to control, and no definite block scheme has been given in the existing pier cap design scheme

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