Steel support and steel trestle integrated structure and construction method thereof

A construction method and technology of steel trestle bridges, which are applied in the direction of foundation structure engineering, excavation, bridges, etc., can solve problems such as difficult construction, large number of upright piles, and long construction period

Active Publication Date: 2021-04-20
CHINA CONSTR EIGHT ENG DIV CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the steel support and the steel trestle are applied to the same foundation pit, they are not connected to each other and have independent structures, resulting in complex space structure, many steel components and cross construction, and a large n

Method used

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  • Steel support and steel trestle integrated structure and construction method thereof
  • Steel support and steel trestle integrated structure and construction method thereof
  • Steel support and steel trestle integrated structure and construction method thereof

Examples

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Embodiment approach

[0052]When the plurality of column piles 31 are applied in the foundation pit 10 in the foundation pit 10, the plurality of the column pile 31 is arranged in the longitudinal direction of the steel to the support 21, and the mounting support between the column pile 31 Beam 32.

[0053]When the steel penetration 21 is taken over the base pit 10 in the foundation pit 10, the plurality of H-type pair beam 211 is placed on the beam 32, and the two ends of the multi-type H-shaped support beam 211 are each. Connect to the foundation pit.

[0054]When the top surface of the steel counter 21 is laid in step 3, the gasket 50 is laid in the top surface of the plurality of H-type pair beam 211.

[0055]Specifically, the bull leg 33 is applied to each pair of the same side and the same height of the column pile 31, and then the trace 32 is mounted between each pair of column piles 31, and the two ends of the beam 32 are The portion is fixed to the respective bull leg 33, the size of the bull leg 33 and ...

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Abstract

The invention relates to a steel support and steel trestle integrated structure and a construction method thereof. The construction method comprises the following steps that a plurality of stand column piles are constructed in a foundation pit; steel diagonal bracings are constructed above the foundation pit, the steel diagonal bracings are arranged on the multiple stand column piles, and the two ends of the steel diagonal bracings are connected to foundation pit surrounding purlins; and gaskets are laid on the tops of the steel diagonal braces, a steel trestle is laid on the tops of the gaskets, and the relative static friction force between the gaskets and the steel diagonal braces is smaller than that between the gaskets and the steel trestle. According to the construction method, the steel diagonal bracings and the steel trestle share a vertical stress system, the number of steel members and the number of stand column piles are reduced, construction procedures are saved, multi-procedure crossing and structure crossing are avoided, and economic benefits are improved; and in addition, through laying of the gaskets, the steel trestle can be kept stable without moving when bearing upper loads, meanwhile, relative movement of the steel diagonal bracings and the gaskets is not affected, deformation of the foundation pit can be better matched, and damage to the stand column piles is avoided.

Description

Technical field[0001]The present invention relates to the field of foundation pit, refers to a steel support and steel stack bridge integrated structure and its construction method.Background technique[0002]Foundation pit support includes vertical enclosure, inner support, and pallet bridges. Steel support, steel replacement bridge has the advantage of green construction, fast construction speed, reusable use, and is often used in foundation pit construction. However, most of the projects are used in a single steel support, a single steel stack bridge or steel support (steel fountain) and the concrete system. When the steel support and the steel fountain are applied to the same foundation pit, the two are not connected, structural independent, resulting in a complex spatial structure in the foundation pit construction, more steel components and cross-construction, the number of column piles, not convenient to excavate And the construction of the foundation of the foundation pit, the...

Claims

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Application Information

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IPC IPC(8): E02D17/04E01D18/00E01D19/12E01D101/30
Inventor 方兴杰孙旻冉岸绿韩磊吴剑秋袁青云
Owner CHINA CONSTR EIGHT ENG DIV CORP LTD
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