Swinging and shifting device for construction of suspension bridge steel box girder

Abstract

The utility model belongs to the technical field of bridge construction, and particularly relates to a swinging and shifting device for construction of a steel box girder of a suspension bridge. The device comprises a temporary cable clamp, hydraulic equipment, a steel strand and an anchor head mechanism, one end of the steel strand is connected with the hydraulic equipment, and the other end of the steel strand is connected with the anchor head mechanism through the hydraulic equipment; and the top of the hydraulic equipment is connected with the temporary cable clamp. The device is simple in structure, small, light, safe, reliable and convenient to transfer. According to the utility model, the construction cost is greatly saved, and beneficial reference can be provided for other similar engineering construction. According to the utility model, the bundle scattering plate is used for carding the steel strands, so that the twisting of the steel strands is effectively prevented.

Description

Technical Field

[0001] This utility model belongs to the field of bridge construction technology, specifically relating to a swinging device for the construction of steel box girders of suspension bridges. Background Technology

[0002] The steel box girder of a suspension bridge is generally hoisted using a cable-stayed crane, but the cable-stayed crane has a relatively complex structure and high construction costs. For cableless steel box girders of a suspension bridge, temporary storage using scaffolding is generally employed. However, when there are many cableless girder segments and the installation height is high, the investment in temporary scaffolding is substantial, the construction is complex, the safety risks are significant, and the construction costs are high. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a swinging device for the construction of steel box girders in suspension bridges. This device not only effectively solves the problem of storing beams in cable-free sections, but also features a simple structure, high safety and reliability, easy disassembly, relatively simple construction process, high construction efficiency, and low construction cost. It can provide a useful reference for the construction of other similar projects.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A swaying device for the construction of steel box girders of suspension bridges includes a temporary cable clamp, a hydraulic device, steel strands, and an anchor head mechanism; one end of the steel strand is connected to the hydraulic device, and the other end of the steel strand is connected to the anchor head mechanism through the hydraulic device; the top of the hydraulic device is connected to the temporary cable clamp.

[0006] The hydraulic equipment includes an installation cylinder, a through-hole jack, a rope storage mechanism, and a hydraulic pump station. The installation cylinder is vertically arranged, and the through-hole jack is connected inside it. The rope storage mechanism is connected to the outer wall of the installation cylinder. One end of the steel strand is wound inside the rope storage mechanism, and the other end of the steel strand extends through the installation cylinder and the through-hole jack to the bottom of the installation cylinder and then connects to the anchor head. The hydraulic pump station is connected to the through-hole jack and is used to control the through-hole jack to take in and release the steel strand.

[0007] The rope storage mechanism includes

[0008] The connecting frame is a frame structure that is connected to the outer wall of the mounting cylinder.

[0009] The rope storage reel is connected inside the connecting frame and is used to wind the steel strand;

[0010] The shunting plate, attached to the top of the connecting frame, is used to guide the steel strands.

[0011] It also includes a boom mechanism; the boom mechanism is connected to the top of the mounting cylinder, and the mounting cylinder is connected to a temporary cable clamp through the boom mechanism.

[0012] The boom mechanism includes a boom, a lower pin, and an upper pin; the boom is a rectangular plate structure with connecting pin holes at both ends; the upper end of the boom is connected to a temporary cable clamp via the upper pin, and the lower end of the boom is connected to an installation cylinder via the lower pin.

[0013] The mounting cylinder has an open bottom and a hollow structure, and its top is fixedly connected to a first connector for connecting with the boom mechanism; the upper outer wall of the mounting cylinder has a through hole for the steel strand to pass through.

[0014] A second connector for connecting the rope storage mechanism is attached to the outer wall of the mounting cylinder facing the rope storage mechanism.

[0015] A guide tube is provided on the outside of the through hole for the steel strand to pass through on the upper outer side wall of the mounting cylinder at an upward angle.

[0016] The central axis of the guide tube is collinear with the axis of the steel strand.

[0017] The anchor head mechanism includes an anchor head and an anchor plate; the anchor plate is connected to the upper end of the anchor head; the anchor plate is used for connection with the steel strand.

[0018] Beneficial effects:

[0019] (1) This utility model is organically composed of temporary cable clamp, hydraulic equipment, steel strand and anchor head mechanism. It is not only simple in structure, small and lightweight, but also safe, reliable and easy to turn over.

[0020] (2) This utility model greatly saves construction costs and can provide useful reference for the construction of other similar projects.

[0021] (3) The setting of the loosening plate in this utility model is used to sort the steel strands and effectively prevent the steel strands from getting tangled.

[0022] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in 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.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model.

[0025] Figure 2 This is a schematic diagram of the hydraulic equipment in this utility model.

[0026] Figure 3 This is a schematic diagram of the anchor head mechanism in this utility model.

[0027] Figure 4 This utility model is in use. Figure 1 .

[0028] Figure 5 This utility model is in use. Figure 2 .

[0029] Figure 6 This utility model is in use. Figure 3 .

[0030] In the diagram: 1. Temporary cable clamp; 2. Main cable; 3. Hydraulic equipment; 4. Steel strand; 5. Anchor head; 6. Anchorway; 7. Perforated plate; 8. Lifting device; 9. Steel box girder; 10. Double-limb tower column; 11. Beam moving support; 12. Winch; 13. Anchor plate; 301. Installation cylinder; 302. Through-hole jack; 303. Rope storage reel; 304. Boom; 305. Lower pin; 306. Upper pin; 307. Bundle unwinding plate; 308. Hydraulic pump station; 309. Guide pipe. Detailed Implementation

[0031] 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.

[0032] Example 1:

[0033] according to Figures 1-6 The device shown is a swaying device for the construction of steel box girder of suspension bridge, including temporary cable clamp 1, hydraulic equipment 3, steel strand 4 and anchor head mechanism; one end of the steel strand 4 is connected to the hydraulic equipment 3, and the other end of the steel strand 4 is connected to the anchor head mechanism through the hydraulic equipment 3; the top of the hydraulic equipment 3 is connected to the temporary cable clamp 1.

[0034] In some embodiments, the hydraulic device 3 includes an installation cylinder 301, a through-hole jack 302, a rope storage mechanism, and a hydraulic pump station 308; the installation cylinder 301 is vertically arranged, and the through-hole jack 302 is connected inside it; the rope storage mechanism is connected to the outer wall of the installation cylinder 301; one end of the steel strand 4 is wound inside the rope storage mechanism, and the other end of the steel strand 4 extends through the installation cylinder 301 and the through-hole jack 302 to the bottom of the installation cylinder 301 and then connects to the anchor head 5; the hydraulic pump station 308 is connected to the through-hole jack 302 and is used to control the through-hole jack 302 to take in and release the steel strand 4.

[0035] In actual use, three sets of hydraulic equipment 3 are set up, numbered as the first hydraulic equipment, the second hydraulic equipment, and the third hydraulic equipment respectively from the middle span to the side span. Each set of hydraulic equipment is fixed to the main cable 2 by temporary cable clamps 1. The upper part of the steel strand 4 is anchored to the through-hole jack 302 inside the hydraulic equipment 3, and the lower part of the steel strand 4 is fixed to the anchor head mechanism. The hydraulic pump station 308 of the hydraulic equipment 3 is placed on the surface layer of the catwalk 6. A perforated plate 7 is connected to the end of the anchor head 5, and the anchor head 5 is connected to the lifting device 8 through the perforated plate 7. Then, the steel box girder 9 is transported to the bottom of the first hydraulic equipment, and the lifting device 8 connected to the bottom of it is connected and fixed to the steel box girder 9. The first hydraulic equipment is started to lift the steel box girder 9 to a certain height. Then, the anchor head mechanism below the second hydraulic equipment is pulled and connected to the perforated plate 7 above it. Subsequently, a swinging motion is performed to move the steel box girder 9 to the bottom of the second hydraulic equipment, and then the anchor head 5 under the first hydraulic equipment is removed from the perforated plate 7. Next, the steel box girder 9 is horizontally pulled onto the beam-shifting support 11 connected to the double-limb tower columns 10 using the winch 12. Then, the anchor head 5 under the second hydraulic device is removed from the perforated plate 7, thus completing the swinging movement of the steel box girder 9 simply and quickly. The winch 12 is used to make the steel box girder 9 slide longitudinally on the beam-shifting support 11 and pass between the double-limb tower columns 10, moving longitudinally to below the designed position. Since the total width of the steel box girder 9 is larger than the spacing between the double-limb tower columns 10, the flange plates at both ends can be temporarily left unwelded during the processing of the steel box girder 9, and welding can be carried out after hoisting into place. The third hydraulic device is used to hoist the steel box girder 9 to the set position.

[0036] Example 2:

[0037] according to Figures 1-3 The swinging device shown here for the construction of steel box girders of suspension bridges differs from Embodiment 1 in that: the rope storage mechanism includes

[0038] The connecting frame is a frame structure and is connected to the outer wall of the mounting cylinder 301;

[0039] Rope storage reel 303 is connected inside the connecting frame and is used to wind steel strand 4;

[0040] Bundling plate 307 is connected to the top of the connecting frame and is used to guide the steel strand 4.

[0041] In actual use, the upper end of the steel strand 4 passes through the mandrel jack 302, wraps around the loosening plate 307, and is stored in the rope storage reel 303. The loosening plate 307 is used to loosen the steel strand 4, effectively preventing the steel strand 4 from tangling and ensuring construction safety. The lower end of the steel strand 4 is anchored by the clamp in the mandrel jack 302, and the lower end of the steel strand 4 that passes through the mandrel jack 302 is fixed to the anchor plate 13 of the anchor head 5.

[0042] Example 3:

[0043] according to Figures 1-3 The swinging device shown is used for the construction of steel box girder of suspension bridge. It differs from Embodiment 1 in that it also includes a boom mechanism. The boom mechanism is connected to the top of the installation cylinder 301, and the installation cylinder 301 is connected to the temporary cable clamp 1 through the boom mechanism.

[0044] Furthermore, the boom mechanism includes a boom 304, a lower pin 305, and an upper pin 306; the boom 304 is a rectangular plate structure with connecting pin holes at both ends; the upper end of the boom 304 is connected to the temporary cable clamp 1 via the upper pin 306, and the lower end of the boom 304 is connected to the mounting cylinder 301 via the lower pin 305.

[0045] In actual use, the boom 304 is connected to the temporary cable clamp 1 via the upper pin 306, and the mounting cylinder 301 is connected to the boom 304 via the lower pin 305. After the boom 304 is removed, the length of the swinging construction device 16 can be shortened, which is used for hoisting steel box girders 9 with smaller hoisting heights.

[0046] Example 4:

[0047] according to Figures 1-3 The swinging device shown is used for the construction of steel box girder of suspension bridge. It differs from Embodiment 1 or Embodiment 3 in that: the mounting cylinder 301 is an open and hollow structure at the bottom, and a first connecting piece for connecting with the boom mechanism is fixedly connected to its top; a through hole for the steel strand 4 to pass through is opened on the upper outer wall of the mounting cylinder 301.

[0048] Furthermore, a second connector for connecting the rope storage mechanism is connected to the outer wall of the mounting cylinder 301 facing the rope storage mechanism.

[0049] Furthermore, a guide tube 309 is provided at an upward angle on the outer side of the upper outer wall of the mounting cylinder 301, outside the through hole for the steel strand 4 to pass through. In some embodiments, the central axis of the guide tube 309 is collinear with the axis of the steel strand 4.

[0050] In actual use, the installation cylinder 301 adopts the above technical solution to smoothly and safely take in and release the steel strand 4; the setting of the guide tube 309 makes the steel strand 4 enter and exit the installation cylinder 301 more smoothly.

[0051] The central axis of the guide tube 309 is collinear with the axis of the steel strand 4, which enables the steel strand 4 to be better protected.

[0052] A second connector for connecting the rope storage mechanism is connected to the outer wall of the mounting cylinder 301 facing the rope storage mechanism, making the installation and replacement of the rope storage mechanism more convenient.

[0053] Example 5:

[0054] according to Figures 1-3 The swinging device shown is used for the construction of steel box girder of suspension bridge. It differs from Embodiment 1 in that: the anchor head mechanism includes an anchor head 5 and an anchor plate 13; the anchor plate 13 is connected to the upper end of the anchor head 5; the anchor plate 13 is used for connection with the steel strand 4.

[0055] The anchor plate 13 in this embodiment uses existing technology.

[0056] In practical use, the bottom end of the steel strand 4 is fixed to the anchor plate 13 of the anchor head mechanism, and the upper end of the steel strand 4 is anchored by the clamps in the through-hole jack 302. After the upper end of the steel strand 4 passes through the through-hole jack 302, it passes around the loosening plate 307 and is stored in the rope storage reel 303. The loosening plate 307 is used to straighten the steel strand 4 and prevent it from tangling. The through-hole jack 302 is controlled by the hydraulic pump station 308, and the steel strand 4 is raised and lowered by controlling the through-hole jack 302, thus facilitating the hoisting of the steel box girder 9.

[0057] Where there is no conflict, those skilled in the art can combine the relevant technical features in the above examples according to the actual situation to achieve the corresponding technical effects. Specific details of the various combinations will not be elaborated here.

[0058] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0059] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0060] The above description is merely a preferred embodiment of the present invention. The present invention is not limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. Any simple modifications, equivalent variations, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the present invention.

Claims

1. A sway device for construction of a steel box girder of a suspension bridge, characterized in that: The utility model provides a temporary cable clamp (1), hydraulic equipment (3), steel strand (4) and anchor head mechanism, one end of steel strand (4) is connected with hydraulic equipment (3), and the other end of steel strand (4) is connected with anchor head mechanism through hydraulic equipment (3), the top of hydraulic equipment (3) is connected with temporary cable clamp (1).

2. The oscillating device for construction of steel box girder of suspension bridge according to claim 1, characterized in that: The hydraulic equipment (3) includes installation cylinder (301), through core jack (302), rope storage mechanism and hydraulic pump station (308), the through core jack (302) is connected in the inside of the vertical installation cylinder (301), the rope storage mechanism is connected on the lateral wall of installation cylinder (301), one end of steel strand (4) is wound in the rope storage mechanism, and the other end of steel strand (4) extends to the bottom outside of installation cylinder (301) through installation cylinder (301) and through core jack (302) and is connected with anchor head (5), the hydraulic pump station (308) is connected with through core jack (302) and is used for controlling through core jack (302) to release steel strand (4).

3. The oscillating device for construction of steel box girder of suspension bridge according to claim 2, characterized in that: The rope storage mechanism includes The connecting frame is connected on the lateral wall of installation cylinder (301) and is the frame structure, The rope storage disc (303) is connected in the connecting frame and is used for winding steel strand (4), The beam thinning plate (307) is connected on the top of connecting frame and is used for the direction of steel strand (4).

4. The oscillating device for construction of steel box girder of suspension bridge according to claim 2, characterized in that: It also includes a boom mechanism, the boom mechanism is connected on the top of installation cylinder (301), and installation cylinder (301) is connected with temporary cable clamp (1) through the boom mechanism.

5. The oscillating device for construction of steel box girder of suspension bridge according to claim 4, characterized in that: The boom mechanism includes boom (304), lower pin shaft (305) and upper pin shaft (306), the boom (304) is rectangular plate structure, and the both ends are respectively provided with connecting pin holes, the upper end of boom (304) is connected with temporary cable clamp (1) through upper pin shaft (306), and the lower end of boom (304) is connected with installation cylinder (301) through lower pin shaft (305).

6. A sway device for construction of a steel box girder of a suspension bridge according to claim 2 or 5, characterized in that: The installation cylinder (301) is the hollow structure of lower open, and the top is fixedly connected with the first connecting piece for connecting with the boom mechanism, and the lateral wall on the upper part of installation cylinder (301) is provided with the through hole for the passage of steel strand (4).

7. The oscillating device for construction of steel box girder of suspension bridge according to claim 6, characterized in that: The second connecting piece for connecting the rope storage mechanism is connected on the lateral wall of installation cylinder (301) towards the rope storage mechanism.

8. The oscillating device for construction of steel box girder of suspension bridge according to claim 6, characterized in that: The through hole for the passage of steel strand (4) on the lateral wall of installation cylinder (301) is provided with guide pipe (309) and is inclined upwards outside.

9. The oscillating device for construction of steel box girder of suspension bridge according to claim 8, characterized in that: The central axis of guide pipe (309) is collinear with the axis of steel strand (4).

10. The oscillating device for construction of steel box girder of suspension bridge according to claim 1, characterized in that: The anchor head mechanism includes anchor head (5) and anchor plate (13), the anchor plate (13) is connected on the upper end of anchor head (5), and the anchor plate (13) is used for connecting with steel strand (4).

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