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A long-span steel pipe support beam with precise length adjustment

A steel pipe support and length adjustment technology, which is applied in the field of support and building foundation pit support, to achieve the effects of less equipment, improved work efficiency, and reduced heat exchange

Inactive Publication Date: 2016-08-24
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: In order to solve the force problem of the support structure of the foundation pit caused by the length change of the large-span steel pipe support beam in the environment of large temperature difference, the present invention provides a new type of large-span steel pipe support beam that reduces the influence of temperature difference. It has the characteristics of maintaining the original length of the steel pipe support beam by accurately adjusting the length of the telescopic control section to eliminate the influence of temperature difference

Method used

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  • A long-span steel pipe support beam with precise length adjustment
  • A long-span steel pipe support beam with precise length adjustment
  • A long-span steel pipe support beam with precise length adjustment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0028] Such as figure 1 , figure 2 , image 3 and Figure 4 As shown, a flange 3 is provided at one end of the steel pipe support beam 1 . The flange plate 3 is a circular plate, and bolt holes are arranged along the inner side of the circumference. Ribs 9 are provided on the contact side of the flange 3 and the steel pipe support beam 1 for local strengthening treatment. The ribs 9 are triangular plates. The piston base 4 and the hydraulic cabin base 5 are respectively connected to the flanges 3 on both sides by bolts 2 . The piston base 4 is a barrel-shaped base, and the outer edge is provided with a bolt hole bolted to the flange 3, the piston 11 is placed in the middle inner area and the inner diameter is slightly larger than the outer diameter of the piston 11, and the displacement sensor 10 is arranged on the side wall. The inner diameter of the hole is slightly larger than the outer diameter of the displacement sensor 10 . The inside of the piston base 4 is prov...

Embodiment approach

[0029] When in use, for a certain foundation pit project using a steel pipe support beam with a relatively large ambient temperature difference, the implementation scheme of using the present invention to eliminate the influence of the ambient temperature difference is as follows:

[0030]A flange 3 is provided at one end of the steel pipe support beam 1 . The flange 3 is a circular steel plate, and bolt holes are arranged along the inside of the circumference. The flange plate 3 and the steel pipe support beam 1 are welded to each other, and a rib plate 9 is provided on the contact side for local strengthening treatment. The rib plate 9 is a triangular steel plate, which is welded to the flange plate 3 and the steel pipe support beam 1 respectively. The piston base 4 and the hydraulic cabin base 5 are respectively connected to the flanges 3 on both sides by bolts 2 . The piston base 4 is a barrel-shaped steel base, with bolt holes bolted to the flange 2 near the outer edge,...

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Abstract

The invention discloses a large-span steel tube supporting beam with the accurately-adjusted length. The large-span steel tube supporting beam with the accurately-adjusted length is composed of steel tube support beam bodies at the two sides and a stretching and retraction control segment in the middle. The stretching and retraction control segment is wrapped with a heat insulation device and is internally provided with a hydraulic bin base and a piston base. A hydraulic bin is embedded in the middle of the hydraulic bin base. A heating device is arranged in the hydraulic bin. A piston is arranged in the middle of the piston base. A temperature sensor is arranged in the piston. A displacement sensor is arranged in the outer side of the piston base and is arranged between the hydraulic bin base and the side wall of the piston base. According to the large-span steel tube supporting beam with the length accurate adjustment function, the length of the large-span steel tube supporting beam is adjusted through the difference between thermal expansion features of different fluid and solid materials in the stretching and retraction control segment, the aim that the length of the large-span steel tube supporting beam is adjusted is achieved, and meanwhile, the large-span steel tube supporting beam has the beneficial effects of being high in accuracy, convenient and rapid to operate, low in energy consumption, high in recycle rate and the like.

Description

technical field [0001] The invention belongs to the field of building foundation pit support and support, and in particular relates to a large-span steel pipe support beam that can reduce the influence of temperature difference changes by precisely adjusting the length. Background technique [0002] Due to limited space, the construction of urban high-rise buildings often involves deep foundation pit engineering. In order to maintain the stability of the pit wall, it is generally necessary to set up supporting beams in the foundation pit. The inner support beam is connected to the pit wall structures on both sides, thereby balancing the earth pressure of the pit wall structures on both sides. At present, the supporting beams in the foundation pit are mostly reinforced concrete beams and steel pipe beams. Since the foundation pit support is a temporary structure in most cases, the supporting beams need to be removed as the construction of the superstructure is carried out. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/04
Inventor 黄挺何良德王震侯利军
Owner HOHAI UNIV