Construction method and device for installing connecting beams on frame-type steel structure

Abstract

The invention discloses a construction method and device for installing connecting beams on a frame-type steel structure. The construction method includes the key steps of utilizing trolleys (5) on track beams (4) to drag the connecting beams (1), and utilizing masts (3) to lift the connecting beams (1). The construction device comprises the connecting beams (1) between two H-shaped steel girders (2) of the frame-type steel structure, the two track beams (4) parallel with the H-shaped steel girders (2) are laid on the connecting beams (1) through fasteners, the pair of trolleys (5) used for bearing the connecting beams (1) is arranged on the two track beams (4), and upper wing plates of the two H-shaped steel girders (2) are detachably connected with a pair of the posts (3) used for lifting the connecting beams (1). According to the construction method and device, the connecting beams (1) in the middle portion can be installed conveniently on the premise that no large-scale tower crane is used.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a construction method and a construction device for installing a connecting beam on a frame steel structure of a long and narrow long-span building. Background technique [0002] In modern architecture, there are many narrow and long-span buildings, such as exhibition halls, gymnasiums, halls, etc. The upper part of the above-mentioned building is provided with a frame-type steel structure, that is, a section steel frame, and the frame-type steel structure is fixed on the upper end of a completed structure such as a column, a load-bearing wall, and the like. The frame steel structure is a rectangular frame composed of two parallel I-beam main girders and two parallel I-beam sub-beams. For load-bearing considerations, it is necessary to fix a connecting beam perpendicular to the I-beam main beam at intervals along the length direction of the frame steel structure, that ...

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Problems solved by technology

The construction methods of the prior art have the following disadvantages. Due to the tight urban land area, the construction site area is narrow, and there are generally buildings on both sides of the construction site. Especially when constructing a frame-type steel structure with a relatively narrow and long span, the truck cranes parked at the front and rear ends cannot reach the middle position at all, so naturally it is impossible to lift the connecting beam in the middle. It can hoist the connecting beams located at the front and rear ends, unless a large tower crane is used, but the cost of using a large tower crane is too high, and the energy consumption is also high. Moreover, for some particularly narrow and long frame steel structures, even a large tower crane still cannot reach the middle position. It is also impossible to lift the connecting beam in the middle

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