Sectional elevator and method for cable-stayed bridge cable tower construction

Abstract

The invention discloses a sectional type elevator and method for cable-stayed bridge cable tower construction, and the method comprises the following steps: arranging at least two elevators, including a straight elevator and an inclined elevator, on each tower limb of a cable-stayed bridge cable tower as a passage for constructors to go up and down; according to the construction progress of the tower columns, elevators are installed in a segmented mode, and the elevators are started to be installed after construction of the lower tower columns is completed; an inclined elevator is arranged on the middle tower column, and the installation height of the elevator is a preset value; a straight elevator is arranged on the upper tower column and is heightened to the top of the tower along with construction of the tower column; and an elevator conversion platform is arranged between the inclined elevator and the straight elevator on the upper cross beam. By means of the working method of the sectional type elevator for cable-stayed bridge cable tower construction, the construction efficiency can be remarkably improved, the labor intensity of constructors is reduced, and meanwhile safety in the construction process is ensured. Through the arrangement of the sectional type elevator, constructors can conveniently enter and exit from all construction areas of the cable bent tower, and powerful guarantee is provided for construction of the cable-stayed bridge cable bent tower.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a sectional elevator and a method for constructing a cable-stayed bridge tower. Background Art

[0002] As an important structural form in modern bridge engineering, the cable tower construction of cable-stayed bridges is highly complex and dangerous. Traditional cable tower construction methods often rely on simple facilities such as scaffolding or ladders for construction workers to go up and down. These facilities are not only inefficient, but also pose great safety hazards. Especially at different stages of cable tower construction, as the tower column height increases, the problem of construction workers going up and down becomes more and more prominent.

[0003] like Figure 2 As shown, during the construction process, conventional elevators are fixed in use by being vertically attached to the bridge body. However, since the lower end of the bridge body in the present application is tilted and opened to both sides, the vertically arranged elevator cannot be installed along the surface of the lower end of the bridge body in the present application. When a straight ladder is arranged at both ends of the bridge body, there will be uncontacted parts in the middle part. In addition, the wall-attached rods are increased because the rods of the straight ladder are too long and the bottom space of the inclined ladder is insufficient. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned background technical problems and to propose a segmented elevator working method for cable-stayed bridge tower construction.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A sectional elevator for the construction of a cable-stayed bridge tower, the cable-stayed bridge tower comprising a middle tower column and an upper tower column, the middle tower column being inclined outwardly along the length direction from top to bottom to form an "eight"-shaped structure, the tail end of the middle tower column being bent inwardly and connected to a foundation, the tail end of the upper tower column being arranged on the top of the middle tower column, the upper tower column and the middle tower column being cast as one piece, an inclined elevator which is detachably mounted on the middle tower column and is incline-matched therewith, a straight elevator being mounted on the upper tower column, and an elevator conversion platform being detachably mounted between the middle tower column and the upper tower column.

[0007] A sectional elevator working method for cable-stayed bridge tower construction comprises the following steps:

[0008] At least two elevators, including a straight elevator and an inclined elevator, are installed on each limb of the cable-stayed bridge tower to serve as access passages for construction workers;

[0009] According to the progress of tower construction, the elevator will be installed in sections, and the lift elevator will be installed after the lower tower construction is completed;

[0010] An inclined elevator is installed on the middle tower column, and the installation height of the elevator is the preset value;

[0011] A vertical elevator is installed on the upper tower column, and the elevator is raised along with the tower column construction to the top of the tower;

[0012] An elevator transfer platform is arranged between the inclined elevator and the straight elevator at the upper crossbeam position, so that construction workers going up and down can transfer to the elevator on the platform.

[0013] As a further solution of the present invention: the installation height of the inclined elevator is 57.7m.

[0014] As a further solution of the present invention: the installation height of the elevator of the vertical elevator is 52.9m.

[0015] As a further solution of the present invention: the inclined ladder is provided with 11 attachments, and the attachment height is 3.6 to 5.4 m.

[0016] As a further solution of the present invention: the straight ladder is provided with 10 attachments, and the attachment height is 2.3 to 7.5 m.

[0017] As a further solution of the present invention: the sectional elevator also includes an elevator control system for monitoring and controlling the elevator safety. The elevator control system includes a wind speed monitoring module for real-time monitoring of the wind speed during the operation of the elevator. When the wind speed exceeds a preset safety threshold, the elevator operation is automatically suspended to ensure construction safety.

[0018] As a further solution of the present invention: the elevator control system also includes an intelligent scheduling module, which can automatically optimize the elevator's operating route and stop sites according to the number of construction personnel in each construction section, the transportation requirements of construction materials and the current operating status of the elevator, thereby improving the elevator's operating efficiency and construction efficiency.

[0019] As a further solution of the present invention: the elevator control system also includes a remote monitoring module and a fault diagnosis module, which can be connected to a remote server via a wireless network to achieve real-time monitoring and data analysis of the elevator operation status, as well as fault warning and remote diagnosis.

[0020] Beneficial effects of the present invention: By adopting the segmented elevator working method for cable-stayed bridge tower construction of the present invention, it is possible to install the elevator in the limited space at the bottom.

[0021] It can significantly improve construction efficiency, reduce the labor intensity of construction workers, and ensure safety during the construction process. Through the setting of the sectional elevator, construction workers can easily enter and exit the construction areas of the cable tower, providing a strong guarantee for the construction of the cable tower of the cable-stayed bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the prior art.

[0025] In the figure: 1. vertical elevator; 2. inclined elevator; 3. elevator transfer platform; 4. conventional elevator; 5. untouched part. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0027] For example, see Figure 1 As shown, the present invention is a sectional elevator working method for cable-stayed bridge tower construction, comprising the following steps:

[0028] At least two elevators are installed on each tower limb of the cable-stayed bridge, including a straight elevator 1 and an inclined elevator 2, as access passages for construction workers;

[0029] According to the progress of tower construction, the elevator will be installed in sections, and the elevator will be installed after the lower tower construction is completed;

[0030] An inclined elevator 2 is provided on the middle tower column, and the installation height of the elevator is a preset value;

[0031] A vertical elevator 1 is installed on the upper tower column, and the elevator is raised along with the construction of the tower column to the top of the tower;

[0032] An elevator transfer platform 3 is arranged between the inclined elevator 2 and the straight elevator 1 at the upper crossbeam position, so that construction workers who go up and down can transfer to take the elevator on the platform.

[0033] For example 2, please refer to Figure 1 As shown, the present invention is a sectional elevator working method for cable-stayed bridge tower construction, comprising the following steps:

[0034] At least two elevators are installed on each tower limb of the cable-stayed bridge, including a straight elevator 1 and an inclined elevator 2, as access passages for construction workers;

[0035] According to the progress of tower construction, the elevator will be installed in sections, and the elevator will be installed after the lower tower construction is completed;

[0036] An inclined elevator 2 is provided on the middle tower column, and the installation height of the elevator is a preset value;

[0037] A vertical elevator 1 is installed on the upper tower column, and the elevator is raised along with the construction of the tower column to the top of the tower;

[0038] An elevator transfer platform 3 is arranged between the inclined elevator 2 and the straight elevator 1 at the upper crossbeam position, so that construction workers who go up and down can transfer to take the elevator on the platform.

[0039] The installation height of the inclined elevator is 57.7m.

[0040] The vertical elevator has a lift installation height of 52.9m.

[0041] The inclined ladder is equipped with 11 attachments, with attachment heights ranging from 3.6 to 5.4m.

[0042] The straight ladder is equipped with 10 attachments, with attachment heights ranging from 2.3 to 7.5m.

[0043] For example 3, please refer to Figure 1 As shown, the present invention is a sectional elevator working method for cable-stayed bridge tower construction, comprising the following steps:

[0044] At least two elevators are installed on each tower limb of the cable-stayed bridge, including a straight elevator 1 and an inclined elevator 2, as access passages for construction workers;

[0045] According to the progress of tower construction, the elevator will be installed in sections, and the lift elevator will be installed after the lower tower construction is completed;

[0046] An inclined elevator 2 is provided on the middle tower column, and the installation height of the elevator is a preset value;

[0047] A vertical elevator 1 is installed on the upper tower column, and the elevator is raised along with the construction of the tower column to the top of the tower;

[0048] An elevator transfer platform 3 is arranged between the inclined elevator 2 and the straight elevator 1 at the upper crossbeam position, so that construction workers who go up and down can transfer to take the elevator on the platform.

[0049] In another embodiment, the sectional elevator also includes an elevator control system for monitoring and controlling the elevator safety. The elevator control system includes a wind speed monitoring module for real-time monitoring of the wind speed during the operation of the elevator. When the wind speed exceeds a preset safety threshold, the elevator operation is automatically suspended to ensure construction safety.

[0050] The elevator control system also includes an intelligent scheduling module, which can automatically optimize the elevator's operating route and stop points according to the number of construction workers in each construction section, the transportation requirements of construction materials and the current operating status of the elevator, thereby improving the elevator's operating efficiency and construction efficiency.

[0051] The elevator control system also includes a remote monitoring module and a fault diagnosis module, which can be connected to a remote server via a wireless network to achieve real-time monitoring and data analysis of the elevator's operating status, as well as fault warning and remote diagnosis.

[0052] It is worth adding that:

[0053] Elevator installation and installation: at least two elevators, including straight elevator 1 and inclined elevator 2, are installed on each limb of the cable-stayed bridge tower as passages for construction workers to go up and down. The selection and installation of straight elevator 1 and inclined elevator 2 should be reasonably arranged according to the shape, height and construction requirements of the tower column. According to the progress of tower column construction, the elevators are installed in sections. After the construction of the lower tower column is completed, the installation of the lifting elevator will begin. An inclined elevator 2 is installed on the middle tower column, and the installation height of the elevator is a preset value, which should be determined according to the height of the middle tower column and the construction period. A straight elevator 1 is installed on the upper tower column, and the elevator is connected with the construction of the tower column to the top of the tower.

[0054] The elevator transfer platform 3 is set up at the upper crossbeam position between the inclined elevator 2 and the straight elevator 1, so that construction workers can switch to the elevator on the platform. The setting of the transfer platform should ensure that construction workers can switch elevators safely and conveniently.

[0055] Elevator control system, wind speed monitoring module: real-time monitoring of wind speed during elevator operation. When the wind speed exceeds the preset safety threshold, the elevator operation is automatically suspended to ensure construction safety. The preset safety threshold should be determined based on local meteorological conditions, tower height and elevator performance. Intelligent scheduling module: automatically optimizes the elevator's operating route and stop points based on the number of construction personnel in each construction section, construction material transportation requirements and the current operating status of the elevator. The intelligent scheduling module uses advanced algorithms and data processing technology to analyze construction requirements and elevator status in real time, thereby formulating the optimal elevator operation plan. Remote monitoring module and fault diagnosis module: connected to the remote server through a wireless network to achieve real-time monitoring and data analysis of the elevator's operating status. When the elevator fails, fault warning and remote diagnosis can be carried out in a timely manner to ensure timely maintenance and normal operation of the elevator.

[0056] The verticality detection method uses the total station three-dimensional coordinate method to lay out the tower column template, and fine-tune the template position to ensure that the template axis and elevation are consistent with the design value. This method has the characteristics of high precision and high efficiency, and can ensure the verticality and construction accuracy of the tower column.

[0057] The installation and control method of active bracing rods is to set horizontal cross braces and actively push them during the construction of the middle tower column, with the offset value matching the design value as the control criterion to ensure that the tower column line shape, stress and inclination meet the design requirements. The installation and control of active bracing rods should be carried out strictly in accordance with the construction drawings and process requirements to ensure the stability and safety of the tower column.

[0058] The prestressed system construction method uses high-strength, low-relaxation steel strands as prestressed tendons, forms holes through corrugated pipes, and uses vacuum-assisted grouting technology to grout the holes. The tensioning of the prestressed tendons adopts the double control method of tensioning force and elongation value to ensure that the tensioning force meets the design requirements and the error between the actual elongation value and the theoretical elongation value is within the allowable range. This method can improve the bearing capacity and durability of the cable tower.

[0059] A sectional elevator for the construction of a cable-stayed bridge tower, the cable-stayed bridge tower comprising a middle tower column and an upper tower column, the middle tower column being inclined outwardly from top to bottom along the length direction to form an "eight"-shaped structure, the tail end of the middle tower column being bent inwardly and connected to a foundation, the tail end of the upper tower column being arranged on the top of the middle tower column, the upper tower column and the middle tower column being cast as one piece, an inclined elevator 2 which is detachably mounted on the middle tower column and is inclined to match the middle tower column, a straight elevator 1 being mounted on the upper tower column, and an elevator conversion platform 3 being detachably mounted between the middle tower column and the upper tower column.

[0060] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of application of the present invention should still fall within the scope of the claims of the present invention.

Claims

1. A sectional elevator for cable-stayed bridge tower construction, characterized in that: The cable-stayed bridge tower comprises a middle tower column and an upper tower column, wherein the middle tower column is inclined outwardly from top to bottom along the length direction to form an "eight"-shaped structure, the tail end of the middle tower column is bent inwardly and connected to a foundation, the tail end of the upper tower column is arranged on the top of the middle tower column, the upper tower column and the middle tower column are cast as one piece, an inclined elevator that matches the middle tower column is detachably installed on the middle tower column, a straight elevator is installed on the upper tower column, and an elevator conversion platform is detachably installed between the middle tower column and the upper tower column.

2. A sectional elevator working method for cable-stayed bridge tower construction, characterized in that: The following steps are involved: At least two elevators, including a straight elevator and an inclined elevator, are installed on each limb of the cable-stayed bridge tower to serve as access passages for construction workers; According to the progress of tower construction, the elevator will be installed in sections, and the elevator will be installed after the lower tower construction is completed; An inclined elevator is installed on the middle tower column, and the installation height of the elevator is the preset value; A vertical elevator is installed on the upper tower column, and the elevator is raised along with the tower column construction to the top of the tower; An elevator transfer platform is arranged between the inclined elevator and the straight elevator at the upper crossbeam position, so that construction workers going up and down can transfer to the elevator on the platform.

3. A sectional elevator working method for cable-stayed bridge tower construction according to claim 1, characterized in that: The installation height of the inclined elevator is 57.7m.

4. A sectional elevator working method for cable-stayed bridge tower construction according to claim 1, characterized in that: The installation height of the vertical elevator is 52.9m.

5. A sectional elevator working method for cable-stayed bridge tower construction according to claim 1, characterized in that: The inclined ladder is equipped with 11 attachments, with attachment heights ranging from 3.6 to 5.4m.

6. A sectional elevator working method for cable-stayed bridge tower construction according to claim 1, characterized in that: The straight ladder is equipped with 10 attachments, with attachment heights ranging from 2.3 to 7.5m.

7. A sectional elevator working method for cable-stayed bridge tower construction according to any one of claims 2 to 6, characterized in that: The sectional elevator also includes an elevator control system for monitoring and controlling the elevator safety. The elevator control system includes a wind speed monitoring module for real-time monitoring of the wind speed during elevator operation. When the wind speed exceeds a preset safety threshold, the elevator operation is automatically suspended to ensure construction safety.

8. A sectional elevator working method for cable-stayed bridge tower construction according to claim 7, characterized in that: The elevator control system also includes an intelligent scheduling module, which can automatically optimize the elevator's operating route and stop points according to the number of construction workers in each construction section, the transportation requirements of construction materials and the current operating status of the elevator, thereby improving the elevator's operating efficiency and construction efficiency.

9. A sectional elevator working method for cable-stayed bridge tower construction according to claim 8, characterized in that: The elevator control system also includes a remote monitoring module and a fault diagnosis module, which can be connected to a remote server via a wireless network to achieve real-time monitoring and data analysis of the elevator's operating status, as well as fault warning and remote diagnosis.

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