A construction platform for installing steel longitudinal beams with vents in cable-stayed bridges.

Abstract

This utility model discloses a construction platform for installing steel longitudinal beams with vents in cable-stayed bridges, belonging to the technical field of steel beam installation in cable-stayed bridges. It includes a bottom construction platform comprising multiple load-bearing beams evenly spaced at the bottom of the platform. Each load-bearing beam has a load-bearing plate on top. Support frames are fixed to both ends of the load-bearing beams. An L-shaped frame is fixed to one side of the support frame. A telescopic horizontal bar is fixed to the top of the side of the support frame away from the L-shaped frame. An upper construction platform is fixed to the top of the L-shaped frame. Multiple sets of pulleys are provided on the L-shaped frame and the telescopic horizontal bar. By setting up the bottom construction platform, upper construction platform, L-shaped frame, and telescopic horizontal bar, the complex construction and difficult movement of traditional construction platforms are solved. Installation is simple and the position can be flexibly adjusted, significantly improving construction efficiency and accelerating project progress. The L-shaped frame and pulleys also allow for adaptation to the special structure of the steel longitudinal beams with vents, ensuring smooth construction.

Description

Technical Field

[0001] This utility model belongs to the field of installation and construction technology of steel beams for cable-stayed bridges, and in particular relates to a construction platform for installing steel longitudinal beams with vents for cable-stayed bridges. Background Technology

[0002] In the construction of steel-concrete composite beams for cable-stayed bridges, the installation of the ventilated steel longitudinal beams is a crucial step. Traditional construction methods have many drawbacks, such as complex and unstable construction platforms. During the connection of the steel longitudinal beams and the tightening of high-strength bolts, the operating space for workers is limited, and the safety risks are high. Furthermore, the lack of effective moving devices makes it difficult to flexibly adjust the position of the construction platform, resulting in low construction efficiency and affecting the project schedule. Moreover, existing construction platforms are ill-suited to the special structure of the ventilated steel longitudinal beams, posing difficulties when passing through the transverse diaphragms of the steel longitudinal beams, further hindering the smooth progress of construction. Utility Model Content

[0003] The purpose of this invention is to provide a construction platform for installing steel longitudinal beams with vents in cable-stayed bridges, in order to solve the problems existing in the prior art.

[0004] To achieve the above objectives, this utility model provides the following solution: This utility model provides a construction platform for installing steel longitudinal beams with vents in cable-stayed bridges, including a bottom construction platform. The bottom construction platform includes multiple load-bearing beams evenly spaced at the bottom of the bottom construction platform. A load-bearing plate is provided on the load-bearing beams. Support frames are fixed to both ends of the load-bearing beams. An L-shaped frame is fixed to one side of the support frame. A telescopic horizontal bar is fixed to the top of the side of the support frame away from the L-shaped frame. An upper construction platform is fixed to the top of the L-shaped frame. Multiple sets of pulleys are provided on the L-shaped frame and the telescopic horizontal bar, and the pulleys are located on the steel longitudinal beams.

[0005] Preferably, the telescopic horizontal bar includes an outer square steel shell fixedly connected to the support frame and an inner square steel core slidably connected within the outer square steel shell, and the pulley is fixedly connected to the inner square steel core.

[0006] Preferably, the L-shaped frame is fixed with steps.

[0007] Preferably, a safety back cage is fixed to the L-shaped frame.

[0008] Preferably, the L-shaped frame includes a first column fixed to both sides of the step, a crossbeam fixed to the top surface of the first column, a diagonal brace between the first column and the crossbeam, and pulleys fixed to the first column and the crossbeam respectively.

[0009] Preferably, the upper construction platform includes a plurality of second columns and steel plates, the plurality of second columns being fixedly connected to the crossbeam, and the steel plates being fixedly connected to the bottom surface of the columns and the crossbeam.

[0010] Preferably, the supporting frame and the second column are respectively fixed with side protection components.

[0011] Preferably, the first column is vertical and arranged at parallel intervals.

[0012] This utility model discloses the following technical effects: by setting up a bottom construction platform, an upper construction platform, an L-shaped frame, and telescopic horizontal bars, it solves the problems of complex construction and difficult movement of traditional construction platforms. It is easy to install and can be flexibly adjusted in position, which greatly improves construction efficiency and speeds up project progress. By setting up an L-shaped frame and pulleys, it can be adapted to the special structure of steel longitudinal beams with vents and can pass smoothly through the steel longitudinal beam diaphragms, ensuring smooth construction. Attached Figure Description

[0013] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0014] Figure 1 This is a structural schematic diagram of the construction platform for installing the steel longitudinal beams with vents in a cable-stayed bridge, according to this utility model.

[0015] Figure 2 This is a structural schematic diagram of the steel longitudinal beam installed in this utility model;

[0016] Figure 3 This is a longitudinal structural diagram of the present invention.

[0017] In the diagram: 1. Bottom construction platform; 2. Side protection components; 3. Telescopic horizontal bar; 4. Pulley; 5. L-shaped frame; 6. Upper construction platform; 7. Steel longitudinal beam; 8. Load-bearing beam; 9. Load-bearing plate; 10. Support frame; 11. Outer square steel; 12. Inner core square steel; 51. Steps; 52. Safety back cage; 53. First column; 54. Horizontal beam; 55. Diagonal brace; 64. Second column; 62. Steel plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Reference Figures 1-3 As shown, this embodiment provides a construction platform for installing steel longitudinal beams with vents in a cable-stayed bridge. The platform includes a bottom construction platform 1, which includes multiple load-bearing beams 8 evenly spaced at the bottom. Each load-bearing beam 8 has a load-bearing plate 9 on it. Support frames 10 are fixed to both ends of the load-bearing beams 8. An L-shaped frame 5 is fixed to one side of the support frame 10. A telescopic horizontal bar 3 is fixed to the top of the side of the support frame 10 away from the L-shaped frame 5. An upper construction platform 6 is fixed to the top of the L-shaped frame 5. Multiple sets of pulleys 4 are provided on the L-shaped frame 5 and the telescopic horizontal bar 3. The pulleys 4 are located on the steel longitudinal beams 7.

[0021] Several load-bearing beams 8 are arranged horizontally and parallelly at intervals. Both ends of the load-bearing beams 8 are fixedly connected to the support frame 10. Load-bearing plates 9 are provided on the load-bearing beams 8, and the load-bearing beams 8 and the load-bearing plates 9 are fixedly connected. The support frame 10 is the force transmission component of the bottom construction platform 1. When the bottom construction platform 1 is in use, the load is transmitted to the load-bearing beams 8 through the load-bearing plates 9, and then to the support frame 10 through the load-bearing beams 8. The support frame 10, as a force transmission component, transmits the force to the L-shaped frame 5 and the telescopic horizontal bar 3.

[0022] By setting up a bottom construction platform 1, an upper construction platform 6, an L-shaped frame 5, and a telescopic horizontal bar 3, the problems of complex construction and difficult movement of traditional construction platforms are solved. The platform is easy to install and can be flexibly adjusted, which greatly improves construction efficiency and speeds up the project progress. By setting up an L-shaped frame 5 and pulleys 4, it can be adapted to the special structure of the steel longitudinal beam 7 with a vent and can pass smoothly through the transverse diaphragm of the steel longitudinal beam 7, ensuring the smooth progress of construction.

[0023] The design is further optimized so that the telescopic horizontal bar 3 includes an outer square steel 11 fixedly connected to the supporting frame 10 and an inner core square steel 12 slidably connected inside the outer square steel 11. A pulley 4 is fixedly connected to the inner core square steel 12. The inner core square steel 12 can extend and retract inside the outer square steel 11. When passing the transverse partition of the steel longitudinal beam 7, the inner core square steel 12 is retracted or extended sequentially. After being fixedly connected to the inner core square steel 12, the pulley 4 is placed on the steel longitudinal beam 7, serving as a force transmission and movement component.

[0024] The design was further optimized by adding steps 51 to the L-shaped frame 5. These steps 51 are made of several angle steel pieces and allow workers to move up and down the ladder.

[0025] The design was further optimized by attaching a safety back cage 52 to the L-shaped frame 5. This provides safety for workers going up and down the ladder steps 51.

[0026] Further optimizing the design, the L-shaped frame 5 includes first columns 53 fixed to both sides of the steps 51. A crossbeam 54 is fixed to the top surface of each first column 53. Diagonal braces 55 are provided between the first columns 53 and the crossbeam 54. Pulleys 4 are fixed to both the first columns 53 and the crossbeam 54. The pulleys 4 abut against one side wall of the steel longitudinal beam 7 with vents, serving as force transmission and movement components. The diagonal braces 55 enhance the structural strength and stability of the construction platform.

[0027] The design was further optimized, with the upper construction platform 6 comprising multiple second columns 64 and steel plates 62. The multiple second columns 64 are respectively fixed to the crossbeams 54, and the steel plates 62 are respectively fixed to the bottom surfaces of the columns and the crossbeams 54. This provides operating space for construction personnel to perform related work on the installation of the steel longitudinal beams 7.

[0028] The design was further optimized, with side protective components 2 fixedly connected to the support frame 10 and the second column 64 respectively. This is to prevent construction workers from accidentally falling.

[0029] The design was further optimized so that the first column 53 is set vertically and at parallel intervals.

[0030] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A construction platform for installation of a steel girder of a cable-stayed bridge with a wind nozzle, characterized in that: The system includes a bottom construction platform (1), which includes multiple load-bearing beams (8) spaced at equal intervals at the bottom of the bottom construction platform (1). The load-bearing beams (8) are provided with load-bearing plates (9). Support frames (10) are fixed to both ends of the load-bearing beams (8). An L-shaped frame (5) is fixed to one side of the support frame (10). A telescopic horizontal bar (3) is fixed to the top of the side of the support frame (10) away from the L-shaped frame (5). An upper construction platform (6) is fixed to the top of the L-shaped frame (5). Multiple sets of pulleys (4) are provided on the L-shaped frame (5) and the telescopic horizontal bar (3). The pulleys (4) are located on the steel longitudinal beams (7).

2. The construction platform for installing the longitudinal steel beam with ventilator in a cable-stayed bridge according to claim 1, characterized in that: The telescopic horizontal bar (3) includes an outer square steel (11) fixedly connected to the support frame (10) and an inner core square steel (12) slidably connected inside the outer square steel (11), and the pulley (4) is fixedly connected to the inner core square steel (12).

3. The construction platform for installing the longitudinal steel beam with ventilator in a cable-stayed bridge according to claim 1, characterized in that: A ladder step (51) is fixed to the L-shaped frame (5).

4. The construction platform for installing the longitudinal steel beam with ventilator in a cable-stayed bridge according to claim 1, characterized in that: A safety back cage (52) is fixedly attached to the L-shaped frame (5).

5. The construction platform for installing the longitudinal steel beam with ventilator in a cable-stayed bridge according to claim 3, characterized in that: The L-shaped frame (5) includes a first column (53) fixed to both sides of the step (51), a crossbeam (54) fixed to the top surface of the first column (53), a diagonal brace (55) between the first column (53) and the crossbeam (54), and pulleys (4) fixed to the first column (53) and the crossbeam (54) respectively.

6. The construction platform for installing the longitudinal steel beam with ventilator in a cable-stayed bridge according to claim 5, characterized in that: The upper construction platform (6) includes multiple second columns (64) and steel plates (62). The multiple second columns (64) are respectively fixed to the crossbeam (54), and the steel plates (62) are respectively fixed to the bottom surface of the columns and the crossbeam (54).

7. The construction platform for installing the steel longitudinal beam with ventilator in a cable-stayed bridge according to claim 6, characterized in that: The supporting frame (10) and the second column (64) are respectively fixed with side protection components (2).

8. The construction platform for installing the longitudinal steel beam with ventilator in a cable-stayed bridge according to claim 5, characterized in that: The first column (53) is vertically and parallelly spaced.

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