Fabricated steel truss web composite beam construction device

Abstract

The utility model relates to the field of construction devices, in particular to an assembly type steel truss web composite beam construction device which comprises a cable bent tower, a supporting platform is arranged below the cable bent tower, a sliding rail is arranged on the supporting platform, a steel truss is arranged on the sliding rail in a sliding mode, and a driving unit used for pushing the steel truss to move is arranged at one end of the sliding rail. The two sides of the steel truss are provided with stretching units used for providing balance for the steel truss. The jacks are arranged at the ends of the sliding rails, the multiple steel trusses are spliced on the sliding rails in advance, the spliced steel truss combination beams are pushed towards the middle of the bridge along the sliding rails through the jacks, in this way, work is started at the two ends of the bridge at the same time, the steel trusses are continuously close to each other till the steel trusses are completely closed, and splicing of the steel truss combination beams is completed. By means of the mode, workers can conveniently and rapidly splice the steel truss web composite beam, the continuous lifting process is not needed, and the working efficiency of the assembly type steel truss web composite beam construction device is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of construction equipment, and in particular to a prefabricated steel truss composite beam construction device. Background Technology

[0002] Prefabricated steel truss composite beams refer to a structural form composed of steel trusses and steel beams. They are typically used in bridge projects with large spans, heavy loads, or high requirements. This structural form is characterized by high strength, light self-weight, good bending resistance, and stability.

[0003] However, in existing bridge construction, some prefabricated steel truss composite beam construction devices involve assembling multiple prefabricated steel trusses by repeatedly lifting them with a crane. This lifting process also involves workers performing splicing operations on the steel trusses, making the entire operation quite complex and reducing the construction efficiency of prefabricated steel truss composite beams. To address these issues, we propose a prefabricated steel truss composite beam construction device. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the problem that some existing prefabricated steel truss composite beam construction devices have low efficiency when splicing steel truss composite beams, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a prefabricated steel truss composite beam construction device, which aims to solve the problem of low efficiency in the splicing of steel truss composite beams in some existing prefabricated steel truss composite beam construction devices.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: including a cable tower, a support platform is provided below the cable tower, a slide rail is provided on the support platform, a steel truss is slidably arranged on the slide rail, a drive unit for pushing the steel truss to move is provided at one end of the slide rail, and tension units for providing balance to the steel truss are provided on both sides of the steel truss.

[0008] As a preferred embodiment of the prefabricated steel truss composite beam construction device of this utility model, the driving unit includes a force-bearing component fixedly connected to one end of the slide rail. Two sets of jacks are symmetrically arranged on one side of the force-bearing component. A slider is fixedly connected to one end of the jack, and a push block is slidably connected to the slider.

[0009] As a preferred embodiment of the prefabricated steel truss composite beam construction device of this utility model, the tensioning unit includes a self-locking mechanism located at the prefabrication station. The self-locking mechanism includes two sets of shafts symmetrically fixedly installed at the prefabrication station, and two sets of anti-detachment components are symmetrically fixedly connected between the shafts.

[0010] As a preferred embodiment of the prefabricated steel truss composite beam construction device of this utility model, two sets of rotating parts are symmetrically rotatably connected between the shafts, and a rope winding shaft is fixedly connected between the rotating parts.

[0011] As a preferred embodiment of the prefabricated steel truss composite beam construction device of this utility model, wherein: two sets of spring grooves are symmetrically opened inside one side of the rotating component, a locking block and a spring are arranged inside the spring groove, the spring is sleeved on the outer wall of the locking block, and the rotating component passes through the anti-detachment component.

[0012] As a preferred embodiment of the prefabricated steel truss composite beam construction device of this utility model, the tensioning unit further includes two sets of pulleys symmetrically and fixedly connected above the tower, a hook is fixedly connected above the steel truss, a steel wire rope is wound on the rope winding shaft, one end of the steel wire rope passes through the pulley and is fixedly connected to the hook.

[0013] The beneficial effects of this utility model of prefabricated steel truss composite beam construction device are as follows:

[0014] 1. A support platform is set up, with slide rails installed on the platform. The steel truss is slidably placed on the slide rails. Jacks are installed at the ends of the slide rails. Multiple steel trusses are pre-assembled on the slide rails. The jacks are used to push the assembled steel truss composite beams along the slide rails towards the middle of the bridge. In this way, construction can start at both ends of the bridge simultaneously and continuously move closer to each other until they are completely joined, completing the splicing of the steel truss composite beams. This method allows workers to quickly assemble the beams without the need for continuous lifting, effectively improving the working efficiency of the prefabricated steel truss composite beam construction device.

[0015] 2. A cable tower is installed, with pulleys above it. A steel wire rope is fixed to the first steel truss, with one end passing through the pulley and a self-locking mechanism at the other end. The self-locking mechanism includes a shaft frame fixedly connected to the prefabrication site, with a rope winding shaft rotatably connected between the shaft frames. A steel wire rope is wound on the rope winding shaft. An anti-detachment component and a rotating component are also provided on one side of the shaft frame. When the jack pushes the steel truss composite beam towards the middle of the bridge, the steel wire rope exerts an upward tension on the steel truss composite beam, preventing it from bending or breaking due to excessive weight, thus protecting the steel truss composite beam. At the same time, when the steel truss composite beam becomes too heavy and one end bends or tilts rapidly, the instantaneous force exerted by the steel truss composite beam on the steel wire rope causes the rotating component and the anti-detachment component to self-lock, preventing the steel truss composite beam from bending or tilting further. This further effectively protects the steel truss composite beam and reduces the accident rate during construction. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a construction scene diagram of a prefabricated steel truss composite beam construction device.

[0018] Figure 2 This is a schematic diagram of the installation of a prefabricated steel truss composite beam construction device.

[0019] Figure 3 for Figure 2 A magnified view of region A in the middle.

[0020] Figure 4 This is a schematic diagram of the overall structure of the prefabricated steel truss composite beam construction device.

[0021] Figure 5 for Figure 4 A magnified view of region B in the middle.

[0022] Figure 6 for Figure 4 A magnified view of region C in the middle.

[0023] Figure 7 for Figure 4 A magnified view of region D in the middle.

[0024] Figure 8 This is a structural schematic diagram of the self-locking mechanism in the prefabricated steel truss composite beam construction device.

[0025] Figure 9 This is an exploded view of the structure of the axle frame, anti-detachment components, and rotating components in the prefabricated steel truss composite beam construction device.

[0026] Explanation of reference numerals in the attached figures:

[0027] 100. Sota;

[0028] 200. Support platform; 201. Slide rail;

[0029] 300. Tensioning unit; 301. Steel wire rope; 302. Pulley; 303. Self-locking mechanism; 3031. Shaft bracket; 3032. Rope winding shaft; 3033. Anti-derailment component; 3034. Rotating component; 3035. Spring groove; 3036. Locking block; 3037. Spring;

[0030] 400. Drive unit; 401. Force-bearing component; 402. Jack; 403. Slider; 404. Push block;

[0031] 500, steel truss; 501, hanging buckle. Detailed Implementation

[0032] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0033] Reference Figure 1 - Figure 9 This utility model provides a prefabricated steel truss composite beam construction device, which includes a pylon 100, which is embedded in a pre-designated site. A support platform 200 is provided below the pylon 100, and a slide rail 201 is provided on the support platform 200. A steel truss 500 is slidably mounted on the slide rail 201. Removable rollers are provided below the steel truss 500, and these rollers slide within the slide rail 201, thereby effectively pushing the assembled multiple sets of steel trusses 500. One end of 01 is equipped with a drive unit 400 for moving the steel truss 500. Both sides of the steel truss 500 are equipped with tension units 300 to provide balancing tension. When the spliced ​​steel truss 500 tilts downwards as it moves towards the middle of the bridge, the tension units 300 can self-lock and prevent the steel truss 500 from continuing to tilt downwards. The support platform 200 provides support for the steel truss 500 and can withstand the weight of multiple spliced ​​steel trusses 500. (Instruction manual attached.) Figure 1 - Figure 3 The installation location of the prefabricated steel truss composite beam construction device is on the mountain. The practical scenario provided by this embodiment is to build a bridge between mountains, but it can also be used in other applicable construction scenarios.

[0034] The drive unit 400 includes a force-bearing component 401 fixedly connected to one end of the slide rail 201. Two sets of jacks 402 are symmetrically arranged on one side of the force-bearing component 401. A slider 403 is fixedly connected to one end of the jack 402. A push block 404 is slidably connected to the slider 403. To avoid the limitation of the work site and the limited length of the slide rail 201, after the steel truss 500 is spliced ​​into one set, it is necessary to use the jacks 402 to push it towards the middle of the bridge once. This requires splicing the steel truss 500 once and pushing it once. This operation is repeated, and the push block 404 needs to be disassembled and reassembled repeatedly. The push block 404 needs to be disassembled during splicing to avoid affecting the splicing. The push block 404 is then installed with the slider 403 during pushing. The force-bearing component 401 is used to bear the reverse force of the jacks 402.

[0035] The stretching unit 300 includes a self-locking mechanism 303 located at the prefabrication station, which uses inertial force to achieve self-locking. The self-locking mechanism 303 includes two sets of shafts 3031 symmetrically fixedly installed at the prefabrication station. Two sets of anti-detachment components 3033 are symmetrically fixedly connected between the shafts 3031. Two sets of rotating components 3034 are symmetrically rotatably connected between the shafts 3031. A rope winding shaft 3032 is fixedly connected between the rotating components 3034. The rotating components 3034 and the rope winding shaft 3032 rotate coaxially.

[0036] Two sets of spring grooves 3035 are symmetrically opened inside one side of the rotating component 3034. A locking block 3036 and a spring 3037 are arranged inside the spring groove 3035. The spring 3037 is sleeved on the outer wall of the locking block 3036. The rotating component 3034 passes through the anti-disengagement component 3033. Under the action of inertial force, the locking block 3036 is thrown out of the spring groove 3035 and cooperates with the anti-disengagement component 3033 to realize the self-locking of the tension unit 300. The spring 3037 is used for the automatic reset of the locking block 3036 to realize the automatic unlocking of the tension unit 300.

[0037] The tensioning unit 300 also includes two sets of pulleys 302 symmetrically fixedly connected above the tower 100. A hook 501 is fixedly connected above the steel truss 500. A wire rope 301 is wound on the rope reel 3032. One end of the wire rope 301 passes through the pulley 302 and is fixedly connected to the hook 501. When the steel truss 500 is pushed, the steel truss 500 will pull the wire rope 301. The wire rope 301 drives the rope reel 3032 to rotate. The rope reel 3032 releases the wire rope 301 to compensate for the length required when the steel truss 500 moves towards the middle of the bridge. When the steel truss 500 tilts downward instantaneously, the wire rope 301 instantly drives the rope reel 3032 to rotate. The rope reel 3032 drives the rotating component 3034 to rotate, so that the locking block 3036 in the rotating component 3034 is thrown to the outside of the spring groove 3035 under the inertial force.

[0038] In use, the steel truss 500 is lifted onto the slide rail 201 using external equipment. Because the slide rail 201 is relatively low, it is easier and less labor-intensive to move the steel truss 500. Workers splice the steel truss 500 on the slide rail 201 and push the spliced ​​steel truss 500 toward the middle of the bridge using jacks 402. During the pushing process, the weight of the part of the steel truss 500 on the slide rail 201 is kept greater than the weight of the part of the steel truss 500 that is detached from the slide rail 201 to prevent the assembly of the steel truss 500 from tilting or collapsing. Through repeated splicing and pushing, the assembly of the steel truss 500 at both ends is connected, and the splicing of the steel truss web composite beam is completed.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A prefabricated steel truss composite beam construction device, characterized in that: include, A cable tower (100) is provided below the cable tower (100), and a support platform (200) is provided on the support platform (200). A slide rail (201) is provided on the slide rail (201), and a steel truss (500) is slidably arranged on the slide rail (201). A drive unit (400) for pushing the steel truss (500) to move is provided at one end of the slide rail (201), and tensioning units (300) for providing balance to the steel truss (500) are provided on both sides of the steel truss (500).

2. The prefabricated steel truss composite beam construction device as described in claim 1, characterized in that: The drive unit (400) includes a force-bearing component (401) fixedly connected to one end of the slide rail (201), and two sets of jacks (402) are symmetrically arranged on one side of the force-bearing component (401).

3. The prefabricated steel truss composite beam construction device as described in claim 2, characterized in that: One end of the jack (402) is fixedly connected to a slider (403), and the slider (403) is slidably connected to a push block (404).

4. The prefabricated steel truss composite beam construction device as described in claim 3, characterized in that: The stretching unit (300) includes a self-locking mechanism (303) located at the prefabrication station. The self-locking mechanism (303) includes two sets of shafts (3031) symmetrically fixedly installed at the prefabrication station. Two sets of anti-detachment components (3033) are symmetrically fixedly connected between the shafts (3031).

5. The prefabricated steel truss composite beam construction device as described in claim 4, characterized in that: Two sets of rotating parts (3034) are symmetrically rotatably connected between the shaft brackets (3031), and a rope winding shaft (3032) is fixedly connected between the rotating parts (3034).

6. The prefabricated steel truss composite beam construction device as described in claim 5, characterized in that: Two sets of spring grooves (3035) are symmetrically opened on one side of the rotating component (3034). A locking block (3036) and a spring (3037) are arranged inside the spring groove (3035). The spring (3037) is sleeved on the outer wall of the locking block (3036). The rotating component (3034) passes through the anti-detachment component (3033).

7. The prefabricated steel truss composite beam construction device as described in claim 6, characterized in that: The tensioning unit (300) also includes two sets of pulleys (302) symmetrically fixedly connected above the tower (100), a hook (501) fixedly connected above the steel truss (500), a steel wire rope (301) wound on the rope winding shaft (3032), one end of the steel wire rope (301) passes through the pulley (302) and is fixedly connected to the hook (501).

Images