Connecting structure of hoop type precast tubular pile and precast bearing platform

Abstract

The invention discloses a connecting structure of a hoop type precast tubular pile and a precast bearing platform. The connecting structure of the hoop type precast tubular pile and the precast bearing platform comprises a precast tubular pile part A and a precast bearing platform part C which are connected through a steel structure hoop type connecting piece part B. The connecting structure of the hoop type precast tubular pile and the precast bearing platform has the beneficial effects that rapid and reliable connection of the precast tubular pile and the precast bearing platform is realizeddue to the adoption of the steel structure hoop type connecting piece part; slurry can be fully injected in a tubular pile upper cavity, a tubular pile top and bearing platform bottom space and a hole passage space of a pile head reserved threaded rod in the bearing platform by means of pressure and a ventilation vertical hole passage in the bearing platform so that the integrity and reliabilityof connection are improved; a cross-shaped vertical plate stiffening rib is included in the tubular pile, the tubular pile is filled with core filling slurry, and therefore, the shear-bearing capacityof a pile head is obviously enhanced; in the case that a foundation is in tension, stress transmission between the precast bearing platform and the precast tubular pile depends on friction between tubular pile grouting material external leather and the cavity wall of the tubular pile and extruding friction between an external annular connecting plate strip and the external wall of the tubular pile; and therefore, the bearing capacity is high, the structure safety defense line is not single; and the shear-bearing capacity of the pile head is enhanced, and the prefabrication degree is enhanced.

Description

technical field [0001] The invention relates to a connection structure between a railway pipe pile and a cap; in particular, it relates to a connection structure between a hoop-type prefabricated pipe pile and a prefabricated cap. Background technique [0002] At present, the connection between the railway pipe pile and the cap is usually carried out by filling the core concrete to connect the prefabricated pipe pile and the cap. Figure 6 It is a schematic diagram of the connection structure of the existing core-filled concrete cast-in-place caps. The advantage of this connection structure is that it is convenient for construction, but this connection structure is only suitable for the cast-in-place caps and cannot be directly applied to the connection of prefabricated caps. The safety line is single, The shear strength of the pile head is low, the degree of component prefabrication is low, the wet work volume on site is large, the pollution is serious, and the construction ...

AI Technical Summary

Problems solved by technology

Image 6 It is a schematic diagram of the connection structure of the existing core-filled concrete cast-in-place caps. The advantage of this connection structure is that it is convenient for construction, but this connection structure is only suitable for cast-in-place caps and cannot be directly applied to the connection of prefabricated caps. The safety line is single, The shear strength of the pile head is low, the degree of component prefabrication is low, the volume of wet work on site is large, the pollution is serious, and the construction quality is difficult to guarantee

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