Segmented overhanging reverse tension brace device for large-span light steel structure

Abstract

The utility model discloses a large-span light steel structure segmented overhanging reverse tension brace device which comprises a main body structure, a steel column to be installed and a steel beam to be installed, a tower crane for constructing the main body structure is arranged above the main body structure, and the tower crane rises along with rising of the main body structure. A steel column embedded part and a reverse rod embedded part are installed on the main body structure, the reverse rod embedded part is an opposite-pulling embedded part, a reverse pull rod is connected to the reverse rod embedded part, the steel column and the steel beam are fixedly connected with the steel column embedded part and the reverse pull rod respectively, and the steel column and the steel beam are vertically adjusted and the elevation of the cantilever end is adjusted through the reverse pull rod. A structural tower crane can be used for high-altitude installation of a large-span light steel structure, ultra-large hoisting machinery and ultra-high temporary supports are not needed for steel structure installation, input of materials and input of large machinery are reduced, structural reinforcement of a bottom plate below the steel structure is not needed, the installation method is simple, and materials are universal.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a large-span light steel structure segmented cantilever reverse bracing device. Background Art

[0002] During the construction process, there are often large-span steel structure roofs. The roof is inside the structure and there is no floor structure underneath. It is impossible to use a large truck crane or crawler crane for installation. The overall weight is heavy, and the tower crane cannot be installed in place at one time. The segmented installation method must be adopted. Because the distance between the bottom of the steel beam and the bottom plate is too large, it is impossible to support the roof installation. Conventional sliding, lifting and other unconventional installation costs are high and cannot be achieved. A fast and efficient steel structure installation device and installation method are needed to achieve the rapid installation of large-span lightweight steel structures and reduce the construction cost investment of large machinery, supporting materials and reinforcement of the bottom plate below. Utility Model Content

[0003] The utility model aims to address the deficiencies in the prior art and provides a large-span light steel structure segmented cantilever reverse bracing device, comprising a main structure and steel columns and steel beams to be installed, a tower crane for the main structure construction is arranged above the main structure, the tower crane rises with the rise of the main structure, steel column embedded parts and reverse rod embedded parts are installed on the main structure, the reverse rod embedded parts adopt tension embedded parts, and reverse pull rods are connected to the reverse rod embedded parts, the steel columns and steel beams are fixedly connected to the steel column embedded parts and the reverse pull rods respectively, and the steel columns and steel beams are vertically adjusted and the cantilever end elevation is adjusted by the reverse pull rods.

[0004] Preferably, the steel columns and steel beams are installed by the tower crane, connected and fixed to the embedded parts of the steel columns by bolts, and connected to the reverse pull rods by shackles to form a whole.

[0005] Preferably, a mid-span steel beam is installed in the middle of the steel columns and steel beams, and the mid-span steel beam is installed as a whole with the steel columns and steel beams on both sides through steel beam saddles on both sides and is connected and fixed.

[0006] Preferably, the reverse pull rod is a hand chain hoist.

[0007] Compared with the prior art, the beneficial effects of the utility model are as follows: the large-span light steel structure is segmented according to the rated lifting weight of the tower crane, the steel columns and steel beams are assembled into a whole on the ground for installation, steel column embedded parts, reverse rod embedded parts and reverse pull rods are arranged on the backs of the steel columns and steel beams, and the cantilever correction of the steel beams is performed by the tension of the reverse pull rods to prevent the eccentric weight of the steel beams from causing the steel columns to tilt, and then the tower crane is used to lift the mid-span steel beams. The utility model can use the structural tower crane for high-altitude installation of large-span light steel structures, without the need to use super-large lifting machinery or super-high temporary supports for steel structure installation, reducing the investment in materials and large machinery, and without the need to structurally reinforce the bottom plate under the steel structure. The installation method is simple and the materials are universal. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0009] Figure 1 This is a schematic diagram of the installation structure of the embedded parts of the utility model;

[0010] Figure 2 This is a schematic diagram of the installation of steel columns and steel beams of the utility model;

[0011] Figure 3 This is a schematic diagram of the installation of the mid-span steel beam of the utility model;

[0012] Figure 4 This is a schematic diagram of the installation of the mid-span steel beam of the utility model;

[0013] Figure 5 This is a schematic diagram of the utility model after the installation is completed and the reverse pull rod device is removed.

[0014] In the figure: 1. Tower crane; 2. Main structure; 3. Embedded parts of steel columns; 4. Embedded parts of reverse tie rods; 5. Reverse tie rods; 6. Steel columns and steel beams; 7. Mid-span steel beam, 701, and steel beam horse plates. DETAILED DESCRIPTION

[0015] The technical solution of the utility model is described in detail below with reference to the accompanying drawings, but the protection scope of the utility model is not limited to the embodiments.

[0016] Reference Figures 1 to 5The utility model discloses a large-span light steel structure segmented cantilever reverse bracing device, comprising a main structure and steel columns and steel beams to be installed, a tower crane for the main structure construction is arranged above the main structure, the tower crane rises as the main structure rises, steel column embedded parts and reverse rod embedded parts are installed on the main structure, the reverse rod embedded parts adopt double-tension embedded parts, and a reverse pull rod is connected to the reverse rod embedded parts, the reverse pull rod in the utility model is a hand winch, the steel column and the steel beam are respectively fixedly connected to the steel column embedded parts and the reverse pull rod, the steel column and the steel beam are vertically adjusted and the elevation of the cantilever end is adjusted by the reverse pull rod, a mid-span steel beam is installed in the middle of the steel column and the steel beam, and the mid-span steel beam is installed as a whole with the steel columns and the steel beams on both sides through the steel beam horse plates on both sides and connected and fixed.

[0017] In the utility model, the tower crane 1 is a main structure 2 construction tower crane, and the auxiliary structure is raised along with the main structure 2. The steel column embedded parts 3 are installed before concrete construction, and the reverse rod embedded parts 4 are installed before floor pouring. The reverse rod embedded parts 4 use tension embedded parts to improve the reverse tensile force.

[0018] Please refer to Figure 2 The steel column and the steel beam 6 are pre-assembled on the ground into an integral installation unit, which is installed by a tower crane and fixed to the embedded steel column parts 3 by bolts. At the same time, they are connected to the reverse pull rod or hand winch 5 by a shackle to form a whole. By adjusting the length of the reverse pull rod 5, the steel column and the steel beam 6 are adjusted vertically and the elevation of the cantilever end is adjusted to prevent downward deflection.

[0019] Please refer to Figure 3 and Figure 4 The tower crane 1 is used to install the mid-span steel beam 7, which is installed as a whole with the steel columns and steel beams 6 on both sides through the steel beam horse plate 701, and is connected and fixed.

[0020] Please refer to Figure 5 After the steel column and steel beam 6 are welded into a whole with the mid-span steel beam 7, the reverse tie rod embedded parts 4, the reverse tie rod or hand hoist 5, and the steel beam horse plate 701 are removed to complete the installation of the large-span light steel structure.

[0021] As mentioned above, the side span steel columns and steel beams are installed, the cantilever of the steel beams is corrected by the tension of the reverse tie rod, and then the mid-span steel beam is hoisted by a tower crane and connected to the steel beams on both sides to complete the welding of the segmented steel beams, remove the reverse tie rod, and complete the high-altitude installation of the large-span light steel structure.

[0022] The utility model divides the large-span light steel structure into sections according to the rated lifting weight of the tower crane, and assembles the steel columns and steel beams on the ground into a whole for installation. Embedded parts and reverse pull rod devices are arranged on the backs of the steel columns and steel beams. The cantilever correction of the steel beams is carried out by the pulling force of the reverse pull rods to prevent the eccentric weight of the steel beams from causing the steel columns to tilt. Then, the tower crane is used to lift the mid-span steel beams, and they are connected with the steel beams on both sides to complete the welding of the welds between the segmented steel beams. The reverse pull rods are removed to complete the high-altitude installation of the large-span light steel structure. The structural tower crane can be used for the high-altitude installation of the large-span light steel structure. There is no need to use super-large lifting machinery or super-high temporary support for the steel structure installation, which reduces the investment in materials and large machinery. There is no need to reinforce the structure of the bottom plate under the steel structure. The installation method is simple and the materials are universal.

[0023] As above, although the utility model has been shown and described with reference to a specific preferred embodiment, it should not be interpreted as limiting the utility model itself. Various changes can be made to it in form and detail without departing from the spirit and scope of the utility model defined in the attached claims.

Claims

1. A long-span light steel structure segmented cantilever reverse bracing device, characterized in that: It includes a main structure and steel columns and steel beams to be installed. A tower crane for the construction of the main structure is arranged above the main structure. The tower crane rises as the main structure rises. Steel column embedded parts and reverse rod embedded parts are installed on the main structure. The reverse rod embedded parts adopt tension embedded parts. Reverse tension rods are connected to the reverse rod embedded parts. The steel columns and steel beams are fixedly connected to the steel column embedded parts and the reverse tension rods respectively. The steel columns and steel beams are vertically adjusted and the elevation of the cantilevered ends are adjusted by the reverse tension rods.

2. According to claim 1, a large-span light steel structure segmented cantilever reverse bracing device is characterized in that: The steel column and the steel beam are installed by the tower crane, connected and fixed to the embedded parts of the steel column by bolts, and connected to the reverse pull rod by shackles to form a whole.

3. According to claim 2, a large-span light steel structure segmented cantilever reverse bracing device is characterized in that: A mid-span steel beam is installed in the middle of the steel columns and steel beams. The mid-span steel beam is installed as a whole with the steel columns and steel beams on both sides through steel beam slabs on both sides and is connected and fixed.

4. The large-span light steel structure segmented cantilever reverse bracing device according to claim 3 is characterized by: The reverse pull rod is a hand chain hoist.

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