Post-grouting strip-shaped partitioning barrier for super large area pressure bearing plate and partitioning method thereof

Abstract

The invention relates to the technical field of thin layer post grouting and discloses a post-grouting strip-shaped partitioning barrier for a super large area pressure bearing plate and a partitioning method thereof. The post-grouting strip-shaped partitioning barriers for the super large area pressure bearing plate are uniformly arranged within a gap between a concrete foundation and the pressure bearing plate at intervals; a joint sealing material is poured into the gap; the post-grouting strip-shaped partitioning barriers for the super large area pressure bearing plate are arranged in parallel and arranged in full length; the post-grouting strip-shaped partitioning barriers for the super large area pressure bearing plate comprise bases, vertical partition plates and grouting materials, wherein the bases are pre-embedded on the concrete foundation, the vertical partition plates are arranged on the lower surface of the pressure bearing plate, and the grouting materials are used for filling spaces in the bases; the bases are channel steel; the channel openings of the bases are vertically upwards and the upper edges of leg plates of the bases are aligned with the upper surface of the concrete foundation; the vertical partition plates are arranged in full length in the length directions of the bases and positioned at the middle parts of the bases and above the bases; and the elevations of the edges of the lower ends of the vertical partition plates are less than the elevation of the upper surface of the concrete foundation. The post-grouting strip-shaped partitioning barrier for the super large area pressure bearing plate has the advantages of being good in partitioning and sealing property and convenient in quality control.

Description

technical field [0001] The invention relates to the technical field of thin-layer post-grouting, in particular to a post-grouting strip-shaped partition barrier for a super-large area bearing plate and a partition method thereof. Background technique [0002] With the development of technology, the scale of steel structure bridges has become larger and larger, and the requirements for the bearing capacity of the bridge deck have become more and more stringent. Among them, the area of ​​the steel-concrete transition section is also becoming larger and larger, and the commonly used post-grouting technology for bearing plates shows a large grouting area, high design contact rate requirements, and complex structures under the bearing plates. More and more limitations. [0003] At present, the thin-layer post-grouting technology of the bearing plate generally adopts the following methods. One is the overall grouting method. The construction process is simple, but the requirement...

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Problems solved by technology

[0005] The technical problems to be solved are: the existing post-grouting technology has relatively large application limitations, and the quality is difficult to control; the existing strip-shaped bin method has poor separation and airtightness, resulting in difficult quality control and poor quality stability

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