Novel assembled steel-structure adjustable force transmission beam for foundation pit

Abstract

The invention discloses a novel assembled steel-structure adjustable force transmission beam for a foundation pit. The force transmission beam comprises an arc steel component, qualitative steel batten plates, a first fixed steel component, first seal head steel plates, force transmission screws, a second fixed steel component, a second seal head steel plate, L-shaped bearing angle steel, chemicalbolts, L-shaped fixed angle steel and three-angle steel batten plates. The force transmission beam has the beneficial effects that section steel raw materials are accurately cut and recombined in a factory to manufacture assembly components, the assembly components are combined into whole unit assembled steel-structure adjustable force transmission beams through adjustable spiral force transmission rod pieces so as to overcome the problems of time and labor consumption and the like in the construction process of a concrete force transmission beam plate, the novel assembled steel-structure adjustable force transmission beam not only solves the problems of difficult construction, complicated procedures and difficult guarantee of quality in the existing structure support changing construction, but also can reduce the field construction operation amount, save the turnover materials such as formworks, steel pipes, reduce the engineering cost and improve the field construction speed.

Description

technical field [0001] The invention relates to a force transmission beam, in particular to a novel foundation pit assembled steel structure adjustable force transmission beam, which belongs to the technical field of construction. Background technique [0002] In deep foundation pit support replacement construction, the design of the traditional reinforced concrete force-transmitting beam slab is to effectively connect the concrete outer wall and the foundation pit surrounding retaining piles at the elevation of the centerline of the underground structure slab. The traditional construction method requires During the construction of the structural slab, the concrete force-transmitting beam and slab steel bars are pre-buried in advance, and then the support frame, the assembled formwork, and the steel bars are bound in the foundation groove, and then the concrete is poured, and the longitudinal reinforcement in the pile needs to be chiseled at the connection with the surroundin...

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Problems solved by technology

[0003] However, there are some problems in the existing technology. First, the existing construction method has complicated technology, cumbersome procedures, and slow construction speed. Second, there is room for improvement in the strength of the existing force-transmitting beam, and it is difficult to install, so it is inconvenient to recycle. The cost is relatively high. Thirdly, the existing force beam assembly turnover rate is low and the seismic performance is poor, which does not greatly improve the construction quality of the subsequent fertilizer trench earthwork backfill. Due to the above shortcomings, the new foundation pit assembled steel structure can be The adjustable force transmission beam has obvious advantages in deep foundation pit construction, and its research and application are becoming more and more extensive at home and abroad

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