Installation method of television tower mast steel structure

Abstract

The invention belongs to the technical field of tower mast assembly, and discloses a television tower mast steel structure mounting method which comprises the following steps that S1, a lifting area is defined by the inner side of a supporting system; s2, a lifting frame is installed on the supporting system; s3, the tower mast to be installed is divided into multiple sections, and the driving end of the lifter is connected to the tower mast section at the uppermost end; s4, the tower mast section at the uppermost end is lifted by a set distance through a lifter, the adjacent tower mast sections are moved in the vertical sequence, and the current tower mast section and the previous tower mast section are spliced; s5, the step S4 is repeated until tower mast splicing is completed; and S6, the tower mast is lifted through a lifter, so that the tower mast section at the lowest end is lifted to the set height, and the tower mast is fixedly connected with the supporting system. The lifting frame is erected on the supporting system, a large tower crane and a wall attaching component are not needed, the construction cost and energy consumption are reduced, the tower mast needing to be installed is subjected to segmented lifting, connection and low-altitude operation, and the operation risk is greatly reduced.

Description

Technical Field

[0001] This invention belongs to the field of tower and mast assembly technology, and specifically relates to an installation method for the steel structure of a television tower mast. Background Technology

[0002] Traditional TV tower structures consist of multiple structural steel columns and a mast. The multiple structural steel columns enclose a support system to support the mast. As the core carrier for transmitting communication signals, the mast steel structure has technical characteristics such as complex spatial truss structure, unconventional installation height, dynamic changes in the stress system, and stringent precision requirements.

[0003] Traditional tower and mast installation has long faced industry pain points. Among them, the traditional "tower crane + wall-mounted hoisting" model relies on large lifting equipment, is significantly affected by the operating radius and high-altitude wind load, and workers assemble at high altitudes, which poses high safety risks. In addition, the wall-mounted components are prone to damaging the original structure, and temporary measures are costly. Therefore, we propose an installation method for the steel structure of TV tower masts to solve the above problems. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides an installation method for the steel structure of a television tower mast, which solves the issues of traditional tower crane installation methods being affected by high-altitude wind loads and posing high safety risks to workers.

[0005] This invention is achieved through the following solution: an installation method for the steel structure of a television tower mast, comprising the following steps: S1. Multiple structural steel columns are installed at the designed locations to form a support system, and the inner side of the support system encloses a lifting area; S2. Install a lifting frame on the support system, and install a lifting device on the top of the lifting frame; S3. Divide the mast to be installed into multiple sections from top to bottom, move the uppermost mast section to the lifting area, and connect the drive end of the lifter to the uppermost mast section. S4. Use the lifting device to lift the uppermost mast section up a set distance, move the adjacent mast sections to the lifting area in vertical order, and splice the current mast section with the previous mast section. S5. Repeat step S4 until the tower and mast are assembled. S6. Use the lifting device to raise the mast to the set height and connect and fix the mast to the support system.

[0006] A further improvement of the installation method of the steel structure of the TV tower mast of the present invention is that a channel for the mast to extend is formed in the middle of the lifting frame, and the number of lifting devices is multiple. When performing step S2, the lifting frame is installed above the support system, so that the channel is connected to the lifting area and the central axis of the lifting frame is aligned with the central axis of the lifting area. Multiple lifting devices are arranged equidistantly in a ring around the central axis of the lifting frame on the top of the lifting frame. When performing step S3, the drive ends of multiple lifters are connected to the uppermost tower mast section.

[0007] A further improvement of the installation method of the TV tower mast steel structure of the present invention is that each of the lifting devices includes a cable-type hydraulic lifting device fixed to the top of the lifting frame, and the steel strand on the cable-type hydraulic lifting device is connected to the uppermost mast section. Before executing step S4, control all cable-driven hydraulic lifting devices to wind up the steel strands to a taut state, and when executing step S4, control all cable-driven hydraulic lifting devices to wind up the steel strands synchronously.

[0008] A further improvement of the installation method of the TV tower mast steel structure of the present invention is that when all the steel strands are connected to the mast section at the same height, the mast section is in a vertical state, and multiple monitors are installed on the lifting frame. During the execution of steps S4-S6, multiple monitors are used to monitor in real time whether the extension length of multiple steel strands is consistent. When the extension length of multiple steel strands is found to be inconsistent, the lifting of the tower mast section is stopped, and multiple cable hydraulic lifting devices are selectively controlled to retract and extend the corresponding steel strands until the extension length of all steel strands is consistent. Then the lifting of the tower mast section continues.

[0009] A further improvement of the installation method of the TV tower mast steel structure of the present invention is that, before performing step S3, a jig is installed at the center position of the lifting area, and when the mast section is moved to the lifting area, the mast section is placed on the jig.

[0010] A further improvement of the installation method of the steel structure of the TV tower mast of the present invention is that it also includes step S7: removing the lifting frame and the lifting device. Compared with the prior art, the beneficial effects of the present invention are as follows: This invention reduces construction costs and energy consumption by erecting a lifting frame on a support system, eliminating the need for large tower cranes and wall-mounted components. It also allows for segmented lifting and connection of the tower masts to be installed, enabling low-altitude operations and significantly reducing operational risks. Attached Figure Description

[0011] Figure 1 A schematic diagram of the connection and fixation between the tower mast and the support system of the present invention is shown.

[0012] Figure 2 A schematic diagram of the uppermost tower mast section of the present invention is shown.

[0013] Figure 3 The diagram shows the lifting of the uppermost tower mast section and the adjacent tower mast sections after assembly.

[0014] Figure 4 A schematic diagram of the lifting of adjacent tower mast sections after assembly is shown.

[0015] Figure 5 A schematic diagram of the lowermost tower mast section of the present invention after assembly and lifting is shown.

[0016] Figure 6 A schematic diagram of the lifting frame structure of the present invention is shown.

[0017] In the diagram: 1. Support system; 2. Lifting area; 3. Lifting frame; 4. Lifter; 5. Steel strand; 6. Tower and mast section; 7. Passageway; 8. Tower and mast. Detailed Implementation

[0018] To address the problems of traditional tower crane installation methods being affected by high-altitude wind loads and posing high safety risks to workers, this invention provides an installation method for the steel structure of a television tower mast. The following detailed description, in conjunction with accompanying drawings, provides further illustration of this installation method for a television tower mast steel structure.

[0019] See Figures 1-6 As shown, an installation method for the steel structure of a television tower mast includes the following steps: S1. Multiple structural steel columns are installed at the designed location to form a support system 1, and a lifting area 2 is formed inside the support system 1. S2. Install the lifting frame 3 on the support system 1, and install the lifting device 4 on the top of the lifting frame 3; S3. Divide the mast to be installed into multiple sections from top to bottom, move the uppermost mast section 6 to the lifting area 2, and connect the drive end of the lifting device 4 to the uppermost mast section 6. S4. Use the lifting device 4 to lift the uppermost mast section 6 up a set distance, move the adjacent mast sections 6 to the lifting area 2 in vertical order, and connect the current mast section 6 with the previous mast section 6. S5. Repeat step S4 until the mast 8 is assembled. S6. Use the lifting device 4 to lift the mast 8, raising the lowest mast section 6 to the set height, and connect and fix the mast 8 to the support system 1.

[0020] By erecting a lifting frame 3 on the support system 1, there is no need for large tower cranes and wall-mounted components, which reduces construction costs and energy consumption. The tower mast 8 that needs to be installed can be lifted and connected in sections, allowing for low-altitude operations and greatly reducing operational risks.

[0021] Among them, see Figure 6 As shown, a channel 7 for the tower mast 8 to extend is formed in the middle of the lifting frame 3, and there are multiple lifting devices 4; When performing step S2, the lifting frame 3 is installed above the support system 1, so that the channel 7 is connected to the lifting area 2 and the central axis of the lifting frame 3 is aligned with the central axis of the lifting area 2. Multiple lifting devices 4 are arranged at equal intervals in a ring around the central axis of the lifting frame 3 on the top of the lifting frame 3. When performing step S3, the drive ends of multiple lifting devices 4 are connected to the uppermost mast section 6.

[0022] Furthermore, the lifting frame 3 is composed of multiple steel frames spliced ​​together, and the cross-section of the channel 7 is trapezoidal.

[0023] By adopting the above design, the multiple evenly arranged lifting devices 4 can lift the mast section 6 more stably during operation, with balanced force; and the channel 7 can allow the mast section 6 to extend during the lifting process, which can ensure that the lifting and assembly of the mast section 6 can be achieved without setting an excessively high lifting frame 3, thus realizing low-altitude operation.

[0024] Each of the lifting devices 4 includes a cable-driven hydraulic lifting device fixed to the top of the lifting frame 3, and the steel strand 5 on the cable-driven hydraulic lifting device is connected to the uppermost tower mast section 6. Before executing step S4, control all cable-driven hydraulic lifting devices to wind up the steel strand 5 to a taut state, and when executing step S4, control all cable-driven hydraulic lifting devices to synchronously wind up the steel strand 5.

[0025] By adopting the above design, greater stability can be ensured when lifting mast section 6, and synchronous lifting can be achieved, reducing the risk of aerial operations.

[0026] Further, see Figure 5 As shown, due to the long length of the mast and the fact that the steel cable 5 is connected to the uppermost mast section 6, it is difficult to lift the lowermost mast section 6 to the set height even when the steel cable 5 is fully wound up during the segment splicing process. Therefore, during the execution of step S5, the steel cable 5 can be connected to other mast sections 6 according to the usage requirements to facilitate lifting. When changing the connection, the assembled mast section 6 can be lowered first by using the steel cable hydraulic lifting device to unwind the cable, and then the steel cable 5 can be removed from the uppermost mast section 6 before connecting to other mast sections 6.

[0027] When all the steel strands 5 are at the same height at the end connected to the tower mast section 6, the tower mast section 6 is in a vertical state, and multiple monitors are installed on the lifting frame 3. During the execution of steps S4-S6, multiple monitors are used to monitor in real time whether the extension lengths of multiple steel strands 5 are consistent. When the extension lengths of multiple steel strands 5 are found to be inconsistent, the lifting of the tower mast section 6 is stopped, and multiple cable-type hydraulic lifting devices are selectively controlled to retract and extend the corresponding steel strands 5 until the extension lengths of all steel strands 5 are consistent. Then the lifting of the tower mast section 6 continues.

[0028] By adopting the above design, the length of the steel strand 5 is detected in real time by the monitor. Since all the ends of the steel strands 5 connected to the tower mast section 6 are at the same height, if the lengths of the steel strands 5 are inconsistent during the lifting process, it indicates that the tower mast section 6 is tilted, which increases the risk of working in the air and affects the installation accuracy. At this time, the controller receives the signal from the monitor and controls multiple cable hydraulic lifting devices to wind up the steel strands 5 until the lengths of the strands are consistent, thereby achieving adjustment and laying the foundation for subsequent high-precision positioning and installation.

[0029] Before performing step S3, a jig is installed at the center of the lifting area 2, and the tower mast section 6 is placed on the jig when the tower mast section 6 is moved to the lifting area 2.

[0030] By adopting the above design, it can be ensured that the movement position of each tower mast section 6 to be assembled is relatively accurate, and the efficiency of low-altitude operation is high.

[0031] This also includes step S7: removing the lifting frame 3 and the lifting device 4.

[0032] By adopting the above design, the equipment can be reused, the amount of temporary measures required is reduced, and the construction cost is greatly reduced. It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. Those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention, and the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A method of installing a television tower pylon steel structure, characterized in that, The method comprises the following steps: S1, installing multiple structural steel columns at designed positions to form a support system, an inner side of the support system being enclosed to form a lifting area; S2, installing a lifting frame on the support system, and installing a lifter on a top of the lifting frame; S3, dividing a tower mast to be installed into multiple sections from top to bottom, moving an uppermost tower mast section to the lifting area, and connecting driving ends of the lifter to the uppermost tower mast section; S4, lifting the uppermost tower mast section by a set distance by the lifter, moving an adjacent tower mast section to the lifting area in a top-to-bottom order, and splicing the current tower mast section and the previous tower mast section; S5, repeating step S4 until the tower mast is spliced; S6, lifting the tower mast by the lifter, and moving a lowermost tower mast section to a set height, and connecting and fixing the tower mast and the support system.

2. The method of installing a television tower tower leg steel structure of claim 1, wherein, The lifting frame is formed with a channel for the tower mast to extend out, and the number of the lifter is multiple; When step S2 is performed, the lifting frame is installed above the support system, so that the channel is in communication with the lifting area, and a central axis of the lifting frame is consistent with a central axis of the lifting area, and the multiple lifters are arranged on the top of the lifting frame at equal intervals along the central axis of the lifting frame as a center; When step S3 is performed, the driving ends of the multiple lifters are all connected to the uppermost tower mast section.

3. The method of installing a television tower tower leg steel structure of claim 2, wherein, Each of the lifters comprises a steel cable type hydraulic lifting device fixed on the top of the lifting frame, and a steel strand rope on the steel cable type hydraulic lifting device is connected to the uppermost tower mast section; Before step S4 is performed, all the steel cable type hydraulic lifting devices are controlled to wind the steel strand rope to a tight state, and when step S4 is performed, all the steel cable type hydraulic lifting devices are controlled to synchronously wind the steel strand rope.

4. The method of installing a television tower tower leg steel structure of claim 3, wherein, When the ends of all the steel strand ropes connected to the tower mast section are at the same height, the tower mast section is in a vertical state, and the lifting frame is installed with multiple monitors; During the process of step S4 to step S6, the multiple monitors are used to respectively and in real time monitor whether the extension lengths of the multiple steel strand ropes are consistent, and when it is monitored that the extension lengths of the multiple steel strand ropes are inconsistent, the tower mast section is stopped from being lifted, and the multiple steel cable type hydraulic lifting devices are selectively controlled to wind or unwind the corresponding steel strand rope, until the extension lengths of all the steel strand ropes remain consistent, and then the tower mast section is continued to be lifted.

5. The method of installing a television tower tower leg steel structure of claim 1, wherein, Before step S3 is performed, a jig is installed at a central position of the lifting area, and when the tower mast section is moved to the lifting area, the tower mast section is placed on the jig.

6. The method of installing a television tower tower leg steel structure of claim 1, wherein, The method further comprises step S7: disassembling the lifting frame and the lifter.

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