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Construction method of structure conversion layer concrete girder steel bracket formwork support

A technology of structural conversion layer and formwork support, which is applied to the connection parts of formwork/formwork/work frame, girders, truss structures, etc., which can solve the problems that the design bearing capacity of the lower floor cannot bear and the safety of the frame cannot be guaranteed. Achieve the effect of reasonable force, convenient construction and lower cost

Active Publication Date: 2009-01-28
WENZHOU CONSTR GROUP
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Problems solved by technology

When constructing the cast-in-place reinforced concrete beams of the structural transfer floor, if the scaffolding with steel pipe fasteners is used according to conventional technical methods, on the one hand, the safety of the frame cannot be guaranteed; load

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  • Construction method of structure conversion layer concrete girder steel bracket formwork support

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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0023] First, the embedded parts of the joist support bracket are buried. After the steel bars of the transfer layer column 1 are bound, the embedded parts of the joist support bracket are embedded in the transfer layer column 1 under the transfer layer beam 2, including the upper embedded part 6. and the lower embedded part 9, the upper embedded part 6 in this embodiment is welded by 2Φ18 U-shaped I-grade steel bars and -200 × 200 × 16 steel plates, and is buried at 380-400 mm below the transfer floor beam 2; the lower pre-embedded Embedded parts 9 are welded by 2Φ18 U-shaped I-grade steel bars and -350×200×16 steel plates, and are buried at the height of 300-500 mm at the lower foot of column 1 of the transfer layer. The welding of upper embedded parts 6 and lower embedded parts 9 adopts Double-sided welding, welding seam height 10mm, welding rod adopts E43...

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Abstract

The invention relates to a support construction method of a steel bracket template of a concrete crossbeam in a structure transition layer, which pertains to the technical filed of building construction methods. The method comprises the following steps: an embedded part of a joist supporting bracket is embedded; concrete of a column in the transition layer is poured; after the strength of the concrete of the column in the transition layer reaches more than C20, a column die in the transition layer is disassembled; a steel corbel, a shaped steel joist, a diagonal bracing shaped steel and a connecting shaped steel are arranged; a beam bottom formwork of the transition layer is laid; a preloading test is carried out to a steel joist of the beam of the transition layer; steel bars of the beam of the transition layer are bonded, and the erection of a template of a side beam form of the transition layer and a floor formwork is carried out; and concrete is poured onto the beam of the transition layer and a floor. A shaped steel-combined steel frame is adopted in the method, and the reinforced concrete column after pouring is used for supporting and bearing to form a combined bearing frame of the steel frame and the concrete column, thereby solving the construction difficulties of the formwork body with relatively high risk of the ultra high and overloaded crossbeam, ensuring the safe production of the construction process, solving the load bearing problem of the support frame by utilizing the frame column and guaranteeing construction quality. The method has the advantages of convenient construction and short construction period.

Description

technical field [0001] The invention belongs to the technical field of building construction methods, and in particular relates to a construction method for supporting a structural transfer layer concrete girder steel bracket formwork. Background technique [0002] With the continuous development of urban construction, more and more high-rise buildings use transfer floors to meet the needs of different building functions. The transfer floor structure has the characteristics of large cross-sectional size of the transfer girder and heavy construction load of the transfer floor structure. Most of the girder formwork in the transfer floor is a tall formwork project, and the country's requirements for tall formwork are determined to be a relatively dangerous project. When constructing the cast-in-place reinforced concrete beams of the structural transfer floor, if the scaffolding with steel pipe fasteners is used according to conventional technical methods, on the one hand, the ...

Claims

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Application Information

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IPC IPC(8): E04B5/32E04C3/20E04G17/18E04G17/00
Inventor 胡正华金瓯郑笑芳潘尚选姜莉
Owner WENZHOU CONSTR GROUP
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