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Profile steel inner support system joint

A support system and node technology, which is applied in excavation, construction, infrastructure engineering, etc., can solve the problems that H-shaped steel support nodes cannot fully exert the strength and ductility of steel, and achieve controllable construction quality, enhanced integrity and stability, The effect of easy installation and disassembly

Pending Publication Date: 2019-06-07
THE FRONTIER TECH RES INST OF TIANJIN UNIV
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the force-bearing characteristics of the current internal support of the foundation pit support, the present invention aims to overcome the disadvantages that the strength and ductility of the steel cannot be fully utilized due to premature failure of the H-shaped steel support node, and to provide a safe, reliable, convenient and easy-to-operate structure. The simple node form provides a reference for the node connection of the support in the foundation pit support in the future

Method used

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  • Profile steel inner support system joint
  • Profile steel inner support system joint
  • Profile steel inner support system joint

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Embodiment Construction

[0013] Such as Figure 1 to Figure 4 As shown, a steel internal support system node is used to connect vertical support and horizontal support. The node includes horizontal H-shaped steel 1, steel cover plate 2, central column 3, flange plate 4, vertical H-shaped steel 5, and stiffener 6. Among them, the central axis of the steel cover plate 2, the central axis of the central column 3, and the central axis of the vertical H-shaped steel 5 coincide; the horizontal H-shaped steel is arranged around the outer side of the central column; 1 connection; horizontal H-shaped steel 1 is simultaneously connected with 2 upper and lower steel cover plates and central column 3; central column 3 is simultaneously connected with several horizontal H-shaped steel 1 and 2 upper and lower steel cover plates; H-shaped steel ends are connected with flange plates.

[0014] Among them, the surface of the steel cover plate 2 and the surface of the central column 3 ring are connected by L-shaped gro...

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Abstract

The invention relates to a profile steel inner support system joint. The profile steel inner support system joint is used for connecting a vertical support with a horizontal support, comprises horizontal H profile steel, an upper steel cover plate, a lower steel cover plate, a center column and vertical H profile steel, and is characterized in that the central axis of the upper steel cover plate and the lower steel cover plate, the central axis of the center column and the central axis of the vertical H profile steel coincide; the horizontal H profile steel is arranged around the outer side face of the center column; the upper steel cover plate is fixedly connected with the center column and the upper flange of the horizontal H profile steel, and the lower steel cover plate is fixedly connected with the center column and the lower flange of the horizontal H profile steel; and flange plates are fixedly connected to the end of the vertical H profile steel and the end of the horizontal Hprofile steel. The integrity and stability of the internal supports can be effectively enhanced.

Description

technical field [0001] The invention relates to a node of a steel internal support system in foundation pit engineering, and is mainly used in underground structure engineering. Background technique [0002] Foundation pit engineering is a traditional subject with a long history. When excavating a foundation pit, it is often necessary to do a good job of foundation pit support. The earth pressure and water pressure generated by the unloading of the soil will be borne by the support structure. The stability of the foundation pit is closely related to the support form. Therefore, the foundation pit support Protection is a key step in the construction of foundation pit engineering. Common forms of foundation pit support include cantilever support, gravity support, internal support, anchor support and soil nail wall support. Among them, cantilever support and gravity support are suitable for shallow foundation pits, anchor support and soil nail wall support are mostly used in ...

Claims

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Application Information

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IPC IPC(8): E02D17/04
Inventor 董恒刘红波
Owner THE FRONTIER TECH RES INST OF TIANJIN UNIV
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