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A Simple Steel Pipe Pile Support Heap Load Preloading Structure and Method

A technology of stacking preloading and steel pipe piles, which can be used in the erection/assembly of bridges, buildings, bridge construction, etc., and can solve problems such as less labor

Active Publication Date: 2020-12-11
CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP 1ST ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the preloading of this type of bracket, there is currently no preloading structure that is simpler, less labor-intensive, high in safety, and high in work efficiency.

Method used

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  • A Simple Steel Pipe Pile Support Heap Load Preloading Structure and Method
  • A Simple Steel Pipe Pile Support Heap Load Preloading Structure and Method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The specific embodiment of the present invention will be described below in conjunction with accompanying drawing, as figure 1 , figure 2 Shown: a simple steel pipe pile support preloaded preloading structure, which includes four prefabricated concrete piles 1, the four prefabricated concrete piles 1 are respectively distributed at the four vertices of a square, these four prefabricated concrete piles The piles 1 are divided into two pairs, each pair of prefabricated concrete piles is supported by a steel beam 2, and an anti-overturning pile 3 is arranged under the steel beam 2, and a steel beam 2 is jointly supported on the two steel beams 2. For the I-beams 4 parallel to each other, and the I-beams 4 and the steel beams 2 are perpendicular to each other, the top of the pair of I-beams 4 is jointly supported by a first layer of prefabricated slabs 5, the first layer The first layer of sleepers 6 is arranged above the prefabricated slab 5, and the second layer of pref...

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PUM

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Abstract

The invention discloses a simple and convenient steel pipe pile support preloading structure, comprising four concrete precast piles which are respectively distributed at four vertexes of a square, the four concrete precast piles are divided into two pairs, a steel cross beam is supported on each pair of the concrete precast piles, a pair of parallel I beams are supported on the two steel cross beams, multiple layers of loading precast slabs and crossties are supported on the pair of I beams, a hydraulic jack is arranged under a first layer of loading precast slab, a buffer crosstie is arranged between the hydraulic jack and the first layer of loading precast slab, at the same time, the hydraulic jack is coaxial with a target concrete precast pile. At the same time, a method for performingsteel pipe pile support preloading by utilizing the above structure is also disclosed.

Description

technical field [0001] The invention relates to the technical field of beam support preloading construction, in particular to a simple steel pipe pile support preloading preloading structure and a preloading method using the structure. Background technique [0002] With the continuous development of bridge construction, there are many ways to erect bridge girders, but the traditional bracket girder erection is still widely used because of its economy, safety, and convenience. They are also different, but no matter what kind of support is erected, preloading should be carried out to ensure the safety of the support and eliminate various deformations. However, for the preloading of the PHC pipe pile support of the independent pier group pile type and the single pile with a large bearing capacity, the traditional surcharged preloaded structure is adopted. According to the design of the single pile bearing capacity, the bearing capacity of the independent pier is relatively larg...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 张健张广涛张文军李顺军李文良徐溢滨陈德位高明春沙权贤孙长志
Owner CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP 1ST ENG