Steel grating double-layer loading plate for static load test of conjoined long and short composite piles

Abstract

The utility model discloses a steel grating double-layer loading plate for a static load test of conjoined long and short composite piles, which comprises an upper steel plate and a lower steel plate, and grating steel plates which are uniformly arranged longitudinally and transversely are arranged between the upper steel plate and the lower steel plate. The device is convenient to manufacture, low in cost and good in economic performance. One-time manufacturing is only needed, repeated use can be achieved, the construction period is shortened, and cost is greatly reduced.

Description

Technical Field

[0001] This utility model relates to a load plate for static load testing of conjoined long and short composite piles. Background Technology

[0002] When the static load test of the conjoined long and short composite piles exceeds 2000 tons, the traditional method first requires pouring a square concrete cap with a thickness of 1000mm and a side length of 2800mm. When the concrete strength is C40-C50, it needs to be cured for 28 days. The rebar is ¢20, and the amount used is about 1.2T. Including labor costs, the cost of making each cap is about 23,000 yuan. Therefore, the cost is high and the manufacturing is complicated. Utility Model Content

[0003] The purpose of this utility model is to provide a double-layer steel grating load plate for static load testing of conjoined long and short composite piles that is easy to manufacture and has good economic performance.

[0004] The technical solution of this utility model is:

[0005] A double-layer steel grating load plate for static load testing of conjoined long and short composite piles is characterized by comprising upper and lower steel plates, with a grating steel plate evenly arranged longitudinally and transversely between the upper and lower steel plates.

[0006] The upper and lower steel plates have the same dimensions: 2500mm in length, 2500mm in width, and 50mm in thickness; the grating steel plates arranged evenly in the longitudinal and transverse directions have the same dimensions: 2200mm in length, 150mm in height, and 30mm in thickness.

[0007] This invention is easy to manufacture, low in cost, and economical. It requires only a one-time manufacturing cost and can be reused multiple times, shortening the construction period and significantly reducing costs. Attached Figure Description

[0008] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0009] Figure 1 This is a structural schematic diagram of one embodiment of the present invention.

[0010] Figure 2 This is a schematic diagram of the usage state of this utility model. Detailed Implementation

[0011] A double-layer steel grating load plate for static load testing of conjoined long and short composite piles includes an upper steel plate 1, a lower steel plate 2, and a grating steel plate 3 evenly arranged longitudinally and transversely between the upper and lower steel plates.

[0012] The upper and lower steel plates have the same dimensions: 2500mm in length, 2500mm in width, and 50mm in thickness; the grating steel plates arranged evenly in the longitudinal and transverse directions have the same dimensions: 2200mm in length, 150mm in height, and 30mm in thickness.

[0013] When in use, the load plate 4 of this utility model is placed directly on the pile cap 6 of multiple sets of connected long and short composite piles 5. When the static load test requires a load of more than 2000 tons, the stiffness of the load plate must meet the requirements of placing 3-5 jacks without eccentric deformation, ensuring safety and stability. The steel load plate material parameters are as follows: one steel plate at the top and one at the bottom, and about 22 steel plates with uniformly dense horizontal and vertical grating in the middle, made of steel of Q235B or higher.

Claims

1. A double-layer steel grating load plate for static load testing of conjoined composite piles of varying lengths, characterized in that: It includes upper and lower steel plates, with a grating steel plate evenly arranged in both directions between the upper and lower steel plates.

2. The double-layer steel grating load plate for static load testing of conjoined long and short composite piles according to claim 1, characterized in that: The upper and lower steel plates have the same dimensions: 2500mm in length, 2500mm in width, and 50mm in thickness; the grating steel plates arranged evenly in the longitudinal and transverse directions have the same dimensions: 2200mm in length, 150mm in height, and 30mm in thickness.

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