Hanging rod replacement construction device

Abstract

The utility model belongs to the technical field of bridge construction, and provides a suspender replacement construction device which comprises a bearing frame and a hoisting tension system. The bearing frame is used for being arranged on a bridge floor and comprises a plurality of sections, and the sections are sequentially spliced so that the length of the bearing frame can be selectively increased; the hoisting and tensioning system is installed on one group of sections, the hoisting and tensioning system comprises a bottom carrying beam, a threaded temporary pull rod and a jack, the bottom carrying beam is arranged below the suspender cross beam, one end of the threaded temporary pull rod is detachably connected with the bottom carrying beam, the jack is installed on the sections, and the other end of the threaded temporary pull rod is detachably connected with the jack. The length of the bearing frame can be selectively increased or decreased according to requirements by splicing or detaching the sections at the two ends of the bearing frame, bearing frames with different lengths do not need to be replaced when the bearing frame is used under the condition of different suspender distances, use is convenient, the bearing frame is conveniently transferred and transported after the bearing frame is detached into the multiple sets of separated sections, and the cost is reduced. The practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a suspension rod replacement construction device. Background Art

[0002] The tied arch bridge combines the two basic structural forms of arch and beam to bear the load together, giving full play to the structural performance and combined effect of the beam being bent and the arch being compressed. In the tied arch bridge, the horizontal thrust at the arch end is borne by the tie rod, thus avoiding the horizontal thrust generated by the arch end support. The arch and the chord are connected by vertical rods hinged at both ends, and sometimes diagonal rods can be used instead of straight rods.

[0003] Since the suspenders are exposed to the natural environment for a long time and are eroded by natural factors such as wind, rain, and sunlight, their materials will suffer from corrosion and aging. As time goes by, the load-bearing capacity of the suspenders will gradually decrease and cannot meet the normal use requirements of the bridge. Therefore, in order to ensure the safety and stability of the bridge, it is necessary to regularly inspect and replace corroded or aged suspenders.

[0004] The load frames in the existing boom replacement construction device are mostly fixed structures, and their length cannot be adjusted. When used under different boom spacing conditions, load frames of different lengths need to be replaced, which is troublesome to use, and the long load frames are not convenient for transportation, which reduces the practicality of the device. Therefore, in view of the above technical problems, a boom replacement construction device is proposed. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model proposes a boom replacement construction device, which is convenient for adjusting the length of the bearing frame according to the boom spacing, is easy to use, and improves the practicability of the device.

[0006] A boom replacement construction device, comprising:

[0007] A bearing frame, used for being placed on a bridge deck, the bearing frame comprising a plurality of segments, wherein the plurality of segments are sequentially spliced ​​to selectively extend the length of the bearing frame; and

[0008] A weight-lifting and tensioning system is installed on one group of the segments, and the weight-lifting and tensioning system includes a bottom beam, a threaded temporary tie rod and a jack. The bottom beam is arranged below the cross beam of the suspension rod, and one end of the threaded temporary tie rod is detachably connected to the bottom beam. The jack is installed on the segment, and the other end of the threaded temporary tie rod is detachably connected to the jack.

[0009] The beneficial effects of the above-mentioned boom replacement construction device are:

[0010] When in use, the load-bearing frame is placed on the bridge deck, and then according to the distance between the hanger to be replaced and the adjacent hangers on both sides, the length of the load-bearing frame can be selectively lengthened or shortened as needed by splicing or disassembling segments at both ends of the load-bearing frame, so that the length of the load-bearing frame can be adjusted according to the hanger spacing. When used under different hanger spacings, there is no need to replace load-bearing frames of different lengths, which is easy to use. Moreover, by disassembling the load-bearing frame into multiple groups of separate segments, the transfer and transportation of the load-bearing frame is facilitated, thereby improving the practicability of the device.

[0011] In one embodiment, the segment includes a bottom longitudinal beam, a vertical beam, a top longitudinal beam and an upper cross beam, a plurality of groups of the vertical beams are arranged at intervals on the bottom longitudinal beam, the top ends of the plurality of groups of the vertical beams are connected to the top longitudinal beam, the top longitudinal beam is provided with the upper cross beam, and the jack is arranged on the upper cross beam.

[0012] In one embodiment, both ends of the bottom longitudinal beam and the top longitudinal beam are provided with pin holes, and then the adjacent segments are detachably connected by means of latches. When splicing, the pin holes on the bottom longitudinal beam and the top longitudinal beam in the two adjacent groups of segments are aligned one by one, and then the latches are inserted into the aligned pin holes to complete the splicing of the two groups of segments. When disassembling, the connected segments can be separated by removing the latches from the pin holes, and the splicing and disassembly of the carrier is convenient.

[0013] In one embodiment, the segment further includes a diagonal bracing beam; the diagonal bracing beam is arranged obliquely, and one end is connected to the bottom longitudinal beam, and the other end is connected to the vertical beam. By arranging the diagonal bracing beam, the diagonal bracing beam, the bottom longitudinal beam and the vertical beam can cooperate to form a triangular structure, thereby improving the stability of the segment structure, and further improving the bearing capacity of the load-bearing frame.

[0014] In one embodiment, a walking mechanism is provided at the bottom of the carrier frame, so that the device can be moved by the walking mechanism to facilitate the device to continuously replace the boom.

[0015] In one embodiment, the walking mechanism includes walking wheels, and two sets of the walking wheels are provided at both ends of the bottom of the carrier frame to ensure the stability of the device when it moves.

[0016] In one embodiment, the travel wheel includes a pressure plate, a first bearing, a wheel frame, a second bearing, a wheel body and a brake system; the pressure plate can be fixed to the bottom of the carrier frame by bolts, the bottom end of the pressure plate is connected to the wheel frame through the first bearing, so that the wheel frame can rotate around a vertical axis, the wheel frame is connected to the wheel body through two groups of the second bearings, so that the wheel body can rotate around a horizontal axis, and the brake system is arranged on the wheel frame, which is used to lock the wheel body or unlock the wheel body. It is convenient for steering when the device is moving and fixing the device after moving.

[0017] In one embodiment, the threaded temporary tie rods are symmetrically arranged in multiple groups along the boom cross beam, one end of each of the threaded temporary tie rods is connected to the two ends of the bottom beam, and the jacks are arranged in multiple groups corresponding to the threaded temporary tie rods, and each of the jacks is connected to the other end of each of the threaded temporary tie rods. The stability of the device when transferring the load of the boom to be replaced can be improved by cooperating with multiple groups of symmetrical threaded temporary tie rods and multiple groups of jacks. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation of the utility model, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0019] Figure 1 A front view of a boom replacement construction device provided by an embodiment of the utility model;

[0020] Figure 2 for Figure 1 A right side view of a boom replacement construction device shown;

[0021] Figure 3 for Figure 1 A front view of a traveling wheel in a boom replacement construction device is shown.

[0022] Reference numerals:

[0023] 1. Hanging rod;

[0024] 2. Hanger beam;

[0025] 10, bottom longitudinal beam; 101, vertical beam; 102, top longitudinal beam; 103, upper cross beam; 104, pin connection hole; 105, diagonal bracing beam;

[0026] 20. Bottom beam; 201. Threaded temporary tie rod; 202. Jack;

[0027] 30. Traveling wheel; 301. Wheel frame; 302. Second bearing; 303. Wheel body; 304. First bearing; 305. Pressure plate; 306. Braking system; DETAILED DESCRIPTION

[0028] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0029] See also Figure 1 , Figure 2 In one embodiment, a boom replacement construction device includes a load-bearing frame and a hoisting tensioning system.

[0030] The load-bearing frame is used to be placed on the bridge deck, and the load-bearing frame includes a plurality of segments, and the plurality of segments are sequentially spliced ​​to selectively extend the length of the load-bearing frame. The weight-lifting tensioning system is installed on one group of segments, and the weight-lifting tensioning system includes a bottom beam 20, a threaded temporary tie rod 201, and a jack 202. The bottom beam 20 is arranged below the suspension cross beam 2, and one end of the threaded temporary tie rod 201 is detachably connected to the bottom beam 20. The jack 202 is installed on the segment, and the other end of the threaded temporary tie rod 201 is detachably connected to the jack 202.

[0031] In the above embodiment, when replacing the suspension rod 1, the load-bearing frame is placed on the bridge deck, and then according to the spacing between the suspension rod 1 to be replaced and the adjacent suspension rods 1 on both sides, the length of the load-bearing frame can be selectively lengthened or shortened according to needs by splicing or disassembling segments at both ends of the load-bearing frame, so that the length of the load-bearing frame can be adjusted according to the spacing between the suspension rods 1. When used under different spacings between the suspension rods 1, there is no need to replace load-bearing frames of different lengths, which is convenient to use. Moreover, by disassembling the load-bearing frame into multiple groups of separated segments, the transfer and transportation of the load-bearing frame is facilitated, thereby improving the practicality of the device. When the length of the load-bearing frame is adjusted to an appropriate length, Test the cable tension and bridge deck elevation of the hanger 1 to be replaced, then place the bottom beam 20 under the hanger crossbeam 2 connected to the hanger 1 to be replaced, and then drive the jack 202 cylinder to extend and tension the threaded temporary tie rod 201. By tensioning the threaded temporary tie rod 201, the load of the hanger 1 to be replaced can be transferred to the hangers 1 on both sides adjacent to each other through the load-bearing frame. At this time, the hanger 1 to be replaced can be disassembled and replaced with a new hanger 1. After replacing the new hanger 1, drive the jack 202 cylinder to contract to cancel the tensioning of the threaded temporary tie rod 201. Finally, measure the cable tension and bridge deck elevation of the new hanger 1 to complete the replacement operation.

[0032] On the basis of the above embodiment, further, the segment includes a bottom longitudinal beam 10, a vertical beam 101, a top longitudinal beam 102 and an upper cross beam 103, and multiple groups of vertical beams 101 are arranged at intervals on the bottom longitudinal beam 10, and the top ends of the multiple groups of vertical beams 101 are connected to the top longitudinal beam 102, and the top longitudinal beam 102 is provided with an upper cross beam 103, and the jack 202 is arranged on the upper cross beam 103. Specifically, both ends of the bottom longitudinal beam 10 and the top longitudinal beam 102 are provided with pin holes 104, and then the adjacent segments are detachably connected by bolts. When splicing, the pin holes 104 on the bottom longitudinal beam 10 and the top longitudinal beam 102 in the two adjacent groups of segments are aligned one by one, and then the bolts (not shown) are inserted into the aligned pin holes 104 to complete the splicing of the two groups of segments. When disassembling, the connected segments can be separated by removing the bolts from the pin holes 104, and the splicing and disassembly of the bearing frame is convenient.

[0033] On the basis of the above embodiments, further, multiple groups of threaded temporary tie rods 201 are symmetrically arranged along the hanger crossbeam 2, one ends of the multiple groups of threaded temporary tie rods 201 are respectively connected to the two ends of the bottom beam 20, and multiple groups of jacks 202 are arranged corresponding to the multiple groups of threaded temporary tie rods 201, and the multiple groups of jacks 202 are respectively connected to the other ends of the multiple groups of threaded temporary tie rods 201.

[0034] The cooperation of multiple groups of symmetrical threaded temporary tie rods 201 and multiple groups of jacks 202 can improve the stability of the device when transferring the load of the suspension rod 1 to be replaced.

[0035] On the basis of the above embodiment, further, a pad is provided at the bottom end of the bottom beam 20, one end of the threaded temporary pull rod 201 passes through the bottom beam 20 and the pad and is fixed by a nut, a pad is provided on the jack 202, and the other end of the threaded temporary pull rod 201 passes through the jack 202 and the pad and is fixed by a nut.

[0036] The bottom beam 20, the threaded temporary tie rod 201 and the jack 202 are fixedly assembled by nuts, and the assembly and disassembly are convenient.

[0037] See also Figure 1 , Figure 2 In one embodiment, the segment further includes a diagonal bracing beam 105 ; the diagonal bracing beam 105 is arranged obliquely, and one end is connected to the bottom longitudinal beam 10 , and the other end is connected to the vertical beam 101 .

[0038] By providing the diagonal bracing beam 105 , the diagonal bracing beam 105 , the bottom longitudinal beam 10 and the vertical beam 101 can cooperate to form a triangular structure, thereby improving the stability of the segment structure and further improving the bearing capacity of the bearing frame.

[0039] See also Figures 1 to 3 In one embodiment, a walking mechanism is provided at the bottom of the carrier. Specifically, the walking mechanism includes walking wheels 30, and two sets of walking wheels 30 are provided at both ends of the bottom of the carrier. The walking wheels 30 include a pressure plate 305, a first bearing 304, a wheel frame 301, a second bearing 302, a wheel body 303 and a brake system 306; the pressure plate 305 can be fixed to the bottom of the carrier by bolts, the bottom end of the pressure plate 305 is connected to the wheel frame 301 through the first bearing 304, so that the wheel frame 301 can rotate around the vertical axis, the wheel frame 301 is connected to the wheel body 303 through two sets of second bearings 302, so that the wheel body 303 can rotate around the horizontal axis, and the brake system 306 is provided on the wheel frame 301, which is used to lock the wheel body 303 or unlock the wheel body 303.

[0040] In the above embodiment, the walking wheels 30 are provided to facilitate the movement of the device on the bridge deck, thereby facilitating the device to continuously replace the boom 1, and two sets of walking wheels 30 are provided at both ends of the bottom of the carrier frame, which can improve the stability of the device when moving. At the same time, since the wheel frame 301 can rotate around the vertical axis, the wheel body 303 can be driven by the wheel frame 301 to rotate around the vertical axis to achieve steering when the device moves, thereby improving the flexibility of the device when moving. When the device moves to the specified position, the wheel body 303 can be locked by adjusting the brake system 306 to fix the device, thereby ensuring the stability of the device when replacing the boom 1. When the device needs to move again, the wheel body 303 can be released by adjusting the brake system 306.

[0041] The specific implementation of the above-mentioned boom replacement construction device is as follows:

[0042] When replacing the hanger 1, the load-bearing frame is placed on the bridge deck, and then, according to the spacing between the hanger 1 to be replaced and the adjacent hangers 1 on both sides, the pin holes 104 on the bottom longitudinal beam 10 and the top longitudinal beam 102 in the two adjacent groups of segments are aligned one by one, and then the pins are inserted into the aligned pin holes 104 to splice the two groups of segments to increase the length of the load-bearing frame, or the pins are removed from the pin holes 104 of the spliced ​​segments to separate the connected segments to reduce the length of the load-bearing frame, which is convenient for adjusting the length of the load-bearing frame according to the spacing of the hangers 1. When used under different spacing conditions of the hangers 1, there is no need to replace load-bearing frames of different lengths, which is convenient to use, and the load-bearing frame is convenient to disassemble into multiple groups of separated segments. The transfer and transportation of the device can be improved to improve the practicality of the device. When the length of the bearing frame is adjusted to an appropriate length, the cable tension and the bridge deck elevation of the hanger 1 to be replaced are tested, and then the bottom beam 20 is placed under the hanger cross beam 2 connected to the hanger 1 to be replaced, and then the threaded temporary tie rod 201 is stretched and tensioned by driving the jack 202 cylinder. By tensioning the threaded temporary tie rod 201, the load of the hanger 1 to be replaced can be transferred to the hangers 1 on both sides of the adjacent side through the bearing frame. At this time, the hanger 1 to be replaced can be disassembled and replaced with a new hanger 1. After replacing the new hanger 1, the jack 202 cylinder is driven to contract to cancel the tensioning of the threaded temporary tie rod 201. Finally, the cable tension and the bridge deck elevation of the new hanger 1 are measured to complete the replacement operation.

[0043] When multiple groups of booms 1 need to be replaced continuously, the wheel body 303 is unlocked by adjusting the brake system 306, and the device is moved to the next group of booms 1 to be replaced by the walking wheel 30 and the brake system 306 is adjusted again to lock the wheel body 303, so as to fix the device. At this time, the above steps can be repeated to replace the next group of booms 1 to be replaced, so as to facilitate the continuous operation of the device.

[0044] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A boom replacement construction device, characterized in that: include: A bearing frame, used for being placed on a bridge deck, the bearing frame comprising a plurality of segments, wherein the plurality of segments are sequentially spliced ​​to selectively extend the length of the bearing frame; and A weight-lifting and tensioning system is installed on one group of the segments, and the weight-lifting and tensioning system comprises a bottom beam (20), a threaded temporary tie rod (201) and a jack (202). The bottom beam (20) is arranged below the suspension rod cross beam (2), one end of the threaded temporary tie rod (201) is detachably connected to the bottom beam (20), the jack (202) is installed on the segment, and the other end of the threaded temporary tie rod (201) is detachably connected to the jack (202).

2. A boom replacement construction device according to claim 1, characterized in that: The segment comprises a bottom longitudinal beam (10), a vertical beam (101), a top longitudinal beam (102) and an upper cross beam (103); a plurality of groups of the vertical beams (101) are arranged at intervals on the bottom longitudinal beam (10); the top ends of the plurality of groups of the vertical beams (101) are connected to the top longitudinal beam (102); the top longitudinal beam (102) is provided with the upper cross beam (103); and the jack (202) is arranged on the upper cross beam (103).

3. A boom replacement construction device according to claim 2, characterized in that: Both ends of the bottom longitudinal beam (10) and the top longitudinal beam (102) are provided with pin connection holes (104), and then adjacent segments are detachably connected by means of pins.

4. A boom replacement construction device according to claim 2, characterized in that: The segment further comprises a diagonal bracing beam (105); the diagonal bracing beam (105) is arranged obliquely, and one end of the diagonal bracing beam is connected to the bottom longitudinal beam (10), and the other end is connected to the vertical beam (101).

5. The boom replacement construction device according to claim 1, characterized in that: A walking mechanism is arranged at the bottom of the bearing frame.

6. A boom replacement construction device according to claim 5, characterized in that: The walking mechanism comprises walking wheels (30), and two groups of the walking wheels (30) are arranged at both ends of the bottom of the supporting frame.

7. A boom replacement construction device according to claim 6, characterized in that: The walking wheel (30) comprises a pressure plate (305), a first bearing (304), a wheel frame (301), a second bearing (302), a wheel body (303) and a brake system (306); the pressure plate (305) can be fixed to the bottom of the bearing frame by bolts, the bottom end of the pressure plate (305) is connected to the wheel frame (301) by the first bearing (304), so that the wheel frame (301) can rotate around a vertical axis, the wheel frame (301) is connected to the wheel body (303) by two groups of the second bearings (302), so that the wheel body (303) can rotate around a horizontal axis, and the brake system (306) is arranged on the wheel frame (301) and is used to lock the wheel body (303) or unlock the wheel body (303).

8. The boom replacement construction device according to claim 1, characterized in that: The threaded temporary tie rods (201) are symmetrically arranged in multiple groups along the suspension rod cross beam (2), and one ends of the multiple groups of threaded temporary tie rods (201) are respectively connected to the two ends of the bottom beam (20), and the jacks (202) are arranged in multiple groups corresponding to the multiple groups of threaded temporary tie rods (201), and the multiple groups of jacks (202) are respectively connected to the other ends of the multiple groups of threaded temporary tie rods (201).

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