Steel structure, assembly jig frame and assembly process

Abstract

The invention discloses a steel structure. The steel structure comprises a plurality of pre-bent outer arc pipe pieces and inner arc pipe pieces which can be spliced and connected into an inner and outer circular ring-shaped steel structure, wherein a group of vertical rib plates and transverse partition plates are fixedly connected between the inner and outer arc pipe pieces of the inner and outer circular ring-shaped steel structure; the transverse partition plates are arc-shaped plates arranged in the circumferential direction of the inner and outer arc pipe pieces, the outer edges of the arc-shaped plates are fixedly connected with the outer arc pipe pieces, the inner edges of the arc-shaped plates are fixedly connected with the inner arc pipe pieces, and a gap is reserved between every two adjacent arc-shaped plates; and the vertical rib plates are a group of rectangular plates arranged at equal intervals in the axis direction of the inner and outer arc pipe pieces, the outer side edges of the rectangular plates are fixedly connected with the outer arc pipe pieces, the inner side edges of the rectangular plates are fixedly connected with the inner arc pipe pieces, and the rectangular plates are embedded in the gaps between every two adjacent arc-shaped plates and then are fixedly connected with the arc-shaped plates. According to the steel structure, the assembly jig frame and the assembly process, the design of a tool jig frame suitable for batch manufacturing of steel pipe pieces is broken through, the machining precision requirement of the steel pipe pieces is guaranteed, and the field installation condition is met.

Description

technical field [0001] The invention relates to a steel structure, an assembled tire frame and an assembly process, and belongs to the technical field of tunnel machinery. Background technique [0002] Today, Japan and Europe, which have a relatively high level of shield technology in the world, have achieved a considerable level of shield technology design and are developing in the direction of automation, labor saving, high speed and economy. Especially in Japan, since the 1980s, a large number of segment structure and form tests have been carried out, and more than 50 forms of shield segments have been developed, and 34 types of segment forms that have reached practical use have been screened out and formally collected. Publication in volume. In addition, according to a large number of practices in different projects, for shield tunnels with different purposes, corresponding shield segment application standards (such as sewer shield segment standards, etc.) have been for...

AI Technical Summary

Problems solved by technology

At this stage, the steel structure segment processing adopts the ground sample to determine the segment size. This process has low production efficiency and large size deviation, which brings certain difficulties to the installation.

[0007] 2) For the prefabrication of segments with different widths and different curvature curvatures, there are many mold specifications and a large investment in mold costs

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