CN203159149U - Large-span prestress double-arching-frame hoisting structure - Google Patents

Abstract

The utility model discloses a large-span prestress double-arching-frame hoisting structure which comprises an operation platform arranged between two load bearing columns arranged abreast. A lower steel beam is arranged on the operation platform, an upper steel beam is arranged above the lower steel beam, a jack is arranged between the lower steel beam and the upper steel beam, the end portions of arching frames are located under the operation platform between the two load bearing columns, the end portions of the arching frames and the upper steel beam are connected through screws, the top ends of the screws penetrate the upper steel beam to be fastened through nuts, and the bottom ends of the screws penetrate the end portions of the arching frames to be fastened through nuts. The screws are utilized as a hoisting tool, the jack is utilized as a power source to hoist the screws, the screws drag the arching frames to the designed elevation, safety and health of constructors in the arching frame hoisting process are ensured, damage to structure quality caused by the hoisting process is avoided, and meanwhile hoisting time is shortened.

Description

Large-span prestressed double arch hoisting structure

technical field

The utility model relates to a large-span prestressed double arch hoisting structure.

Background technique

The hoisting weight of the large-span double-arch frame is heavy, the hoisting height is high, and the construction is difficult.

Utility model content

The technical problem to be solved by the utility model is to provide a large-span prestressed double arch hoisting structure, which can ensure the safety and health of construction personnel during the arch hoisting process, ensure that the structure does not suffer from structural quality damage caused by the hoisting process, and shorten the hoisting time at the same time. .

In order to solve the above-mentioned technical problems, the utility model adopts the following technical scheme: the large-span prestressed double-arch hoisting structure includes an operating platform arranged between two side-by-side load-bearing columns. A steel crossbeam, an upper steel crossbeam is arranged above the lower steel crossbeam, a jack is provided between the lower steel crossbeam and the upper steel crossbeam, the end of the arch is located under the operating platform between two load-bearing columns, and the end of the arch is connected to the The upper steel beams are connected by screws, the top ends of the screws pass through the upper steel beams and are fastened by nuts, the bottom ends of the screws pass through the ends of the arch frame and are fastened by nuts.

Preferably, there are four screws arranged in a rectangular distribution.

Preferably, the screw is precision rolled rebar, and the diameter of the screw is 40mm.

Preferably, rest holes are provided on the load-bearing column.

Preferably, the end of the arch is provided with a lifting reserved hole for the screw to pass through, and a steel pipe is pre-embedded in the lifting reserved hole as a casing, and the steel pipe casing is welded and fixed to the steel bar in the arch.

The utility model uses the screw as the lifting tool, and the jack as the power source to lift the screw, and the screw pulls the arch frame to the design elevation, so as to ensure the safety and health of the construction personnel during the hoisting process of the arch frame, and to ensure that the structure will not be damaged due to the hoisting process. At the same time, the hoisting time is shortened.

Description of drawings

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

Figure 1 is a schematic diagram of the large-span prestressed double arch hoisting structure.

Detailed ways

The hoisting structure of the large-span prestressed double arch will be described in detail below in conjunction with Fig. 1. An operating platform 10 is provided between two load-bearing columns side by side, and a lower steel beam 20 is arranged on the operating platform 10. A steel beam 21, a jack 22 is provided between the lower steel beam 20 and the upper steel beam 21, the arch end 3 is located below the operating platform 10 between two load-bearing columns 1, the arch end and the upper steel beam They are connected by a screw 2, the top end of the screw passes through the upper steel beam and is fastened by a nut, and the bottom end of the screw passes through the end of the arch frame and is fastened by a nut.

The screw rods are provided with four and distributed in a rectangular shape. The screw rod is precision-rolled rebar, and the diameter of the screw rod is 40mm. A rest hole is provided on the load-bearing column. The end of the arch is provided with a lifting reserved hole for the screw to pass through, and a steel pipe is pre-embedded in the lifting reserved hole as a casing, and the steel pipe casing is welded and fixed to the steel bar in the arch.

Claims (5)

1. Large-span prestressed double-arch hoisting structure, including an operating platform (10) arranged between two side-by-side load-bearing columns (1), characterized in that: the operating platform (10) is provided with a lower steel beam ( 20), the upper steel beam (21) is arranged above the lower steel beam, the jack (22) is arranged between the lower steel beam and the upper steel beam, and the end of the arch frame (3) is located between two load-bearing columns to operate the platform Below, the end of the arch and the upper steel beam are connected by a screw (2), the top of the screw passes through the upper steel beam and is fastened by a nut, the bottom end of the screw passes through the end of the arch and is The nut is tight. 2. The large-span prestressed double-arch hoisting structure according to claim 1, characterized in that there are four screws arranged in a rectangular distribution. 3. The large-span prestressed double-arch hoisting structure according to claim 2, characterized in that: the screw rod is precision-rolled rebar, and the diameter of the screw rod is 40 mm. 4. The large-span prestressed double arch hoisting structure according to claim 1, characterized in that: the load-bearing column is provided with a rest hole. 5. The large-span prestressed double arch hoisting structure according to claim 1, characterized in that: the end of the arch is provided with a lifting reserved hole for the screw to pass through, and the lifting reserved hole is embedded A steel pipe is used as the casing, and the steel pipe casing is welded and fixed to the steel bars in the arch frame.

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