Support for construction of annular tower

Abstract

The embodiment of the utility model discloses a support for construction of an annular tower, which comprises two rows of support components, and a plurality of support components are arranged in each row; the upper end of each row of supporting assemblies is provided with a bearing beam, the two rows of bearing beams are connected through a cross beam connecting assembly, and the cross beam connecting assembly is perpendicular to the bearing beams. Comprising bottom supporting assemblies, the upper ends of the supporting assemblies are connected with a bearing beam, two rows of lower supporting assemblies are arranged, the bottom supporting stability is guaranteed, according to the requirement for the supporting height, the overall height can be increased only by adjusting the number of the vertically-spliced supporting assemblies, frequent disassembly of the overall components is not needed, and the cost is reduced. Or the whole device is translated transversely according to requirements, so that the time of frequent disassembly is saved while the supporting stability is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of annular tower construction and relates to a bracket used for annular tower construction. Background Art

[0002] Against the backdrop of the rapid development of urban bridges, special-shaped steel tower cable-stayed bridges are becoming increasingly popular with their graceful curves. In addition to meeting basic transportation functions, they have become local landmarks. During the construction of special-shaped steel bridge towers, temporary supports are often required to provide temporary support for the tower segments in order to ensure the linear continuity between tower segments and the smooth linear shape of the final bridge.

[0003] In the existing special-shaped tower construction process, when temporarily supporting the tower segments, the beam-column frame structure is mostly built on site, and the prefabricated segments are point-supported by welding H-shaped steel horse stools on the top of the columns to achieve the support purpose. The disadvantage is that a set of brackets can only hoist a segment, and when assembling the next segment, the brackets need to be re-erected. The temporary brackets need to be frequently installed and disassembled during the process. In addition, during the support process, the stability of the existing support frame is poor, and there are safety hazards. This process greatly increases the construction period, requires a large number of bracket structures, and increases the construction cost. Utility Model Content

[0004] The utility model aims to solve the problem of inconvenient disassembly of a supporting frame in the prior art and provides a bracket for the construction of an annular tower.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A support for the construction of an annular tower, comprising a support assembly, wherein the support assembly is arranged in two rows, with a plurality of support assemblies arranged in each row;

[0007] A load-bearing beam is arranged at the upper end of each row of support components, and the two rows of load-bearing beams are connected by a cross-beam connecting component, and the cross-beam connecting component is vertically distributed to the load-bearing beams.

[0008] The further improvement of the utility model is:

[0009] The support assembly includes a first support portion, the load-bearing beam is fixed at the upper end of the first support portion, and a second support portion is arranged inside the first support portion.

[0010] The first supporting part includes a plurality of columns, and the plurality of columns form a frame structure.

[0011] The second support portion includes a cross brace and a fork brace;

[0012] A cross brace and a fork brace are arranged between every two adjacent columns.

[0013] The plurality of columns form a rectangular structure.

[0014] A column foot plate is arranged at the lower end of the column.

[0015] The crossbeam connection assembly comprises a plurality of crossbeams, and the crossbeams are fixedly welded between two rows of load-bearing beams.

[0016] The load-bearing beam comprises a first load-bearing portion and a second load-bearing portion;

[0017] The first load-bearing part and the second load-bearing part are spaced apart from each other, and a plurality of triangular supports are arranged between the first load-bearing part and the second load-bearing part.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model discloses a bracket for the construction of an annular tower, comprising a support assembly at the bottom, wherein the upper end of the support assembly is connected to a load-bearing beam, and the support assembly at the lower part is arranged in two rows to ensure the stability of the bottom support. According to the requirements of the support height, the overall height can be increased by adjusting the number of vertical splicing of the support assembly, without the need to frequently disassemble the overall components or to laterally translate the overall device according to the requirements. While ensuring the stability of the support, the time for frequent disassembly is also saved.

[0020] Furthermore, in the utility model, the first support part is a frame structure, and the second support part is arranged inside the frame structure and fixed between two adjacent columns by means of a cross brace and a fork brace, thereby improving the stability of the entire bottom support.

[0021] Furthermore, in the utility model, a plurality of oblique support rods connected end to end in sequence are arranged between the first load-bearing part and the second load-bearing part, which improves the stability of the crossbeam support while ensuring the stability of the lower support. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is an overall structural diagram of an embodiment of the utility model;

[0024] Figure 2 It is a front view of an embodiment of the utility model;

[0025] Figure 3A top view of an embodiment of the utility model;

[0026] Figure 4 This is a structural diagram of the support assembly of an embodiment of the utility model.

[0027] Among them: 11-column base plate; 12-column; 13-cross brace; 14-fork brace; 21-load-bearing beam; 22-cross beam; 23-triangular brace. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0031] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0032] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] The utility model is further described in detail below with reference to the accompanying drawings:

[0035] See also Figures 1 to 4 This embodiment discloses a support for the construction of a ring tower, including two rows of support components, with a plurality of support components in each row; a load-bearing beam 21 is arranged at the upper end of each row of support components, and the two rows of load-bearing beams 21 are connected by a cross-beam connecting component, and the cross-beam connecting component is vertically distributed to the load-bearing beam 21.

[0036] Among them, the support assembly includes a first support part and a second support part. The first support part includes a plurality of columns 12, including a plurality of columns 12 to form a rectangular frame structure. A transverse cross brace 13 and a fork brace 14 are welded between each two adjacent columns 12, thereby improving the support stability of the entire support assembly.

[0037] Furthermore, a column base plate 11 is provided at the lower end of the column 12 .

[0038] Furthermore, the structure of the load-bearing beam 21 is:

[0039] The load-bearing beam 21 includes a first load-bearing portion and a second load-bearing portion, which are distributed up and down. A plurality of triangular supports 23 are welded between the first load-bearing portion and the second load-bearing portion, and the triangular supports 23 improve the support stability of the entire load-bearing beam 21 .

[0040] Furthermore, a plurality of cross beams 22 are fixedly connected between the two rows of load-bearing beams 21 . Specifically, a cross beam 22 is connected between the two first load-bearing parts and the two second load-bearing parts. The cross beams 22 are vertically distributed to the load-bearing beams 21 .

[0041] This embodiment also discloses a method for installing a bracket for ring tower construction, comprising the following steps:

[0042] The third section of the A1 circular steel single-tower cable-stayed bridge in the water ecological environment restoration project in Ganzhou District, Zhangye City, Gansu Province, is a 245m long, 6-span circular steel single-tower space cable-stayed bridge with a span arrangement of (2×30)+(2×60)+(2×30)m. The bridge is 28m wide, with a 3% longitudinal and bidirectional slope and a 1.5% transverse slope.

[0043] The bridge tower adopts a steel structure variable cross-section ring tower. The outer contour diameter of the bridge tower ring is 34m, the inner contour diameter is 28m, the inner and outer ring centers do not overlap, and the inner ring is vertically offset by 0.5m from the outer ring center. The cross section of the bridge tower is a single-box double-chamber section with an inner cut angle. The cross section of the bridge tower is 3m wide in the horizontal direction, and the height of the bridge tower section changes gradually from 2.5m high at the top of the tower to 3.5m high at the bottom of the tower. The angle slope is 4:1, and the height of the angle changes from 50cm at the top of the tower to 150cm at the bottom of the tower. The bridge tower is divided into 9 sections for hoisting during the construction process. The cable tower sections are all constructed by hoisting and welding with gantry brackets. The overall structure of the cable tower and the division of construction sections are shown in the figure.

[0044] The specific use method of the utility model is as follows:

[0045] Step 1: Figure 4 As shown, the column base plate 11, the column 12, the cross brace 13, and the fork brace 14 are assembled into a support assembly, and multiple support assemblies can be assembled at the same time, saving the time of setting up the support platform and providing convenience for the subsequent lifting platform;

[0046] Step 2: If Figure 1 As shown, in a specific implementation, the assembled support assembly is placed on the enlarged foundation, and the number of segments of the bolted standard segments is selected according to the height of the segment to be assembled;

[0047] Step 3: If Figure 1 As shown, in a specific implementation, the load-bearing beam 21 is integrally connected to form a support assembly through the cross beam 22 and the triangular support 23;

[0048] Step 4: Figure 2 As shown, in a specific implementation, after the support assembly is assembled, it is hoisted to the top surface of the upper end of the support assembly by a car crane;

[0049] Step 5: Figure 2 As shown, in a specific implementation, the support assembly is lifted by a hydraulic cylinder, and the support assembly is bolted according to the position of the segment to be assembled;

[0050] Step 6: Figure 1 As shown, in the specific implementation, when the lower half of the ring tower is hoisted, the assembly segment is supported by adjusting the position of the crossbeam 22, and then reinforcing rods are added to the inner wall of the ring tower to increase the rigidity of the ring tower during the construction stage;

[0051] Step 7: Figure 1 As shown, in a specific implementation, when hoisting the upper section of the ring tower, the assembly section is supported by adjusting the position of the cross beam 22, and then reinforcing struts are added to the inner wall of the ring tower to increase the rigidity of the ring tower during the construction stage.

[0052] The device disclosed in this embodiment adjusts the vertical position of the support assembly according to the ring tower segment, and then controls the horizontal position of the support platform through the support assembly to finally reach the support position to support the ring tower segment. After welding is completed, this operation is repeated for the next ring tower segment until the overall assembly of the ring tower is completed. The support has higher stability and is easy to disassemble.

[0053] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A support for the construction of an annular tower, characterized in that: It includes a support assembly, wherein the support assembly is arranged in two rows, and a plurality of support assemblies are arranged in each row; A load-bearing beam (21) is arranged at the upper end of each row of support components, and two rows of load-bearing beams (21) are connected by a cross-beam connecting component, and the cross-beam connecting component is vertically distributed with the load-bearing beam (21).

2. A support for the construction of an annular tower according to claim 1, characterized in that: The support assembly comprises a first support part, the load-bearing beam (21) is fixed at the upper end of the first support part, and a second support part is arranged inside the first support part.

3. A support for the construction of an annular tower according to claim 2, characterized in that: The first supporting part comprises a plurality of columns (12), and the plurality of columns (12) form a frame structure.

4. A support for the construction of an annular tower according to claim 3, characterized in that: The second supporting portion comprises a cross brace (13) and a fork brace (14); A cross brace (13) and a fork brace (14) are provided between every two adjacent upright posts (12).

5. A support for the construction of an annular tower according to claim 3, characterized in that: The plurality of columns (12) form a rectangular structure.

6. A support for the construction of an annular tower according to claim 5, characterized in that: A column base plate (11) is provided at the lower end of the column (12).

7. The support for the construction of an annular tower according to claim 1, characterized in that: The crossbeam connection assembly comprises a plurality of crossbeams (22), and the crossbeams (22) are fixedly welded between two rows of load-bearing beams (21).

8. A support for the construction of an annular tower according to claim 7, characterized in that: The load-bearing beam (21) comprises a first load-bearing portion and a second load-bearing portion; The first load-bearing part and the second load-bearing part are spaced apart from each other, and a plurality of triangular supports (23) are arranged between the first load-bearing part and the second load-bearing part.

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