CN201915631U - High-altitude long-span reinforced concrete corridor construction supporting structure - Google Patents

Abstract

The utility model discloses a support structure for the construction of a high-altitude large-span reinforced concrete corridor. A plurality of pairs of corbels are arranged opposite to each other along the same elevation at the shear walls on both sides below the structural slab of the corridor to be constructed. Steel anchor plates corresponding to each corbel are embedded in the concrete structure of the shear walls on both sides at the same elevation of the leg, and each steel anchor plate is welded to the corresponding corbel, and each steel anchor plate is connected to the shear wall. The anchor bars in the force wall concrete are welded and connected; a steel backing plate is welded on the top surface of each corbel; a steel joist is erected on the steel backing plate on the top surface of each pair of two opposite corbels The joists are covered with gangplanks, on which scaffolding is erected. Adopting this construction structure in construction not only ensures the construction period, quality and safety of construction operations, but also saves funds.

Description

A high-altitude long-span reinforced concrete corridor construction support structure

technical field

The utility model relates to a reinforced concrete beam formwork support construction structure, in particular to a reinforced concrete beam formwork support construction structure with extra large, super high and super large span.

Background technique

With the continuous development of my country's economy, there are more and more high-rise buildings. In order to pursue the architectural features and fire protection requirements in high-rise buildings, various aerial corridors have been widely used in buildings. In the past, the aerial corridors were used in structural construction. , Supporting system A full house scaffolding frame is built from the treated hard base as a supporting system. With this support system method, limited by the height-to-thinness ratio of the frame, the reinforced concrete structure is prone to excessive deflection, which is not conducive to controlling the flatness of the beams and slabs of the corridor structure, and more turnover materials and manpower are invested, and the construction operation safety is relatively low. Low.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a support structure for the construction of high-altitude and large-span reinforced concrete corridors with short construction period, small investment, simple construction and quality assurance.

In the construction support structure of a high-altitude large-span reinforced concrete corridor of the utility model, a plurality of pairs of corbels are arranged opposite to each other along the same elevation at the shear walls on both sides below the structural slab of the corridor to be constructed. Steel anchor plates corresponding to each corbel are pre-embedded at the concrete structures of the shear walls on both sides at the same elevation, and each steel anchor plate is welded to its corresponding corbel, and each steel anchor plate is connected to the shear force The anchor bars in the concrete wall are welded and connected; a steel backing plate is welded on the top surface of each corbel; a steel joist is erected on the steel backing plate on the top surface of each pair of two opposite corbels. The beams are covered with springboards, and scaffolding is erected on the springboards.

The beneficial effect of adopting the structure of the utility model is that: the construction structure is adopted in the construction not only to ensure the construction period, quality and safety of the construction operation but also to save funds.

Description of drawings

Fig. 1 is the facade erection diagram of a kind of high-altitude large-span reinforced concrete corridor construction support structure of the present utility model;

Fig. 2 is the connection node figure of corbel and steel joist in Fig. 1;

Fig. 3 is a sectional view of the steel joist along 1-1 in Fig. 1 .

Detailed ways

Below in conjunction with specific embodiment, and with reference to accompanying drawing, the utility model is further described:

As shown in the accompanying drawings, in the construction support structure of a high-altitude large-span reinforced concrete corridor of the present invention, a plurality of pairs of corbels are arranged opposite to each other along the same elevation at the shear walls on both sides below the structural slab of the corridor to be constructed. 9. Steel anchor plates 6 corresponding to each corbel are pre-embedded at the concrete structure of the shear walls on both sides at the same elevation as the corbel, and each steel anchor plate is welded to the corresponding corbel. Each steel anchor plate is welded to the anchor bars 10 in the concrete of the shear wall; steel backing plates 8 are welded on the top surface of each corbel; A steel joist 7 is erected, a springboard 1 is fully paved on the steel joist, and a full house scaffolding 2 is set up on the springboard.

Preferably, angle steel is welded on both sides of the upper flange of each steel joist to enhance the overall stability of the steel joist. The steel joist is covered with springboards, and the steel joist and springboard are combined to form an overall plane, not a single beam Bearing the load, the overall stability of the steel joist meets the requirements. Steel joists can be I-beams.

Two steel bars are welded vertically on the corbels on both sides of each steel backing plate, so that the joist can be positioned laterally, and then the springboard can be laid.

The construction method of this structure is as follows: (1) A plurality of pairs of corbels 9 are arranged opposite to each other along the same elevation at the shear walls on both sides below the structural slab of the corridor to be constructed, and sheared on both sides at the same elevation as the corbels. A steel anchor plate 6 corresponding to each corbel is embedded in the concrete structure of the force wall, and each steel anchor plate is welded to the corresponding corbel, and each steel anchor plate is connected to the anchor bar 10 in the shear wall concrete. Welding connection; the position of the corbel elevation can be determined according to the construction conditions, and the distance between the corbels is determined according to the size of the corridor structure and the combined load calculation. (2) weld the steel backing plate 8 on the top surface of each corbel; (3) erect a steel joist on the steel backing plate on the top surface of each pair of two corbels oppositely arranged, and the steel joist forms an overall simple The girder is used as the main component to bear the load; (4) the springboard 1 is fully paved on the erected steel joist, and then a full house scaffolding 5 is erected on the springboard, and the platform erected by the steel joist 7 is used for the construction of the corridor structural slab. Scaffolding comprises cross bar 3 and vertical bar 2, and corbel can adopt I-beam. The structural dimensions of corbels, steel joists and steel anchor plates shall be calculated and determined according to the loads borne during the construction process.

Compared with the existing structure, the construction period shortens the cumbersome erection of floor-to-ceiling scaffolding, which makes the construction period of the project structure 15 days earlier, and achieves good economic benefits and saves construction costs. , Verticality has been significantly improved, while ensuring the safety of construction operations.

Claims (3)

1. A high-altitude large-span reinforced concrete corridor construction support structure is characterized in that: the shear walls on both sides below the corridor structural slab to be constructed are respectively arranged with many pairs of corbels relative to the same elevation, and are connected with Steel anchor plates corresponding to each corbel are pre-buried at the concrete structures of the shear walls on both sides at the same elevation of the corbel, and each steel anchor plate is welded to its corresponding corbel. The anchor bars in the concrete of the shear wall are connected by welding; a steel backing plate is welded on the top surface of each corbel; a steel joist is erected on the steel backing plate on the top surface of each pair of two opposite corbels. The steel joists are covered with springboards, and a full house of scaffolding is erected on the springboards. 2. The support structure for the construction of high-altitude and long-span reinforced concrete corridors according to claim 1, characterized in that: angle steels are respectively welded on both sides of the upper flange of each steel joist. 3. The support structure for the construction of high-altitude and large-span reinforced concrete corridors according to claim 1, wherein two steel bars are vertically welded on the corbels on both sides of each steel backing plate.

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