CN111441245A - Track system for additionally installing and overhauling truss car for concrete cable-stayed bridge and using method of track system - Google Patents
Track system for additionally installing and overhauling truss car for concrete cable-stayed bridge and using method of track system Download PDFInfo
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- CN111441245A CN111441245A CN202010392338.1A CN202010392338A CN111441245A CN 111441245 A CN111441245 A CN 111441245A CN 202010392338 A CN202010392338 A CN 202010392338A CN 111441245 A CN111441245 A CN 111441245A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000004873 anchoring Methods 0.000 claims abstract description 13
- 239000000853 adhesive Substances 0.000 claims description 36
- 230000001070 adhesive effect Effects 0.000 claims description 36
- 238000012423 maintenance Methods 0.000 claims description 28
- 230000003014 reinforcing effect Effects 0.000 claims description 23
- 238000004891 communication Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 description 7
- 238000005452 bending Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 238000007689 inspection Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000005488 sandblasting Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 206010012411 Derailment Diseases 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D19/106—Movable inspection or maintenance platforms, e.g. travelling scaffolding or vehicles specially designed to provide access to the undersides of bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/04—Cable-stayed bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a track system for additionally installing and overhauling a truss car for a concrete cable-stayed bridge and a use method thereof. The method is that the original bridge tooth block arranged on the lower end surface of the concrete cable-stayed bridge is inserted between a first clamping plate and a second clamping plate; and then the first clamping plate is fixed with the original bridge block by using the first anchoring piece, and the second clamping plate is fixed with the original bridge block by using the second anchoring piece. The invention can install the track on the concrete cable-stayed bridge without embedded parts.
Description
Technical Field
The invention relates to the technical field of additionally mounting and maintaining truss cars for concrete cable-stayed bridges, in particular to a track system for additionally mounting and maintaining truss cars for concrete cable-stayed bridges and a use method thereof.
Background
In order to overhaul concrete cable-stayed bridges, bridge inspection vehicles are generally adopted for overhaul. When the bridge inspection vehicle is used for overhauling, the bridge inspection vehicle is firstly stopped on the bridge floor, then the arm support of the bridge inspection vehicle extends out of the bridge floor, the vertical arm in the arm support is enabled to hang outside the bridge, the telescopic arm in the arm support extends under the bridge, and an operator on the telescopic arm is enabled to overhaul. However, at the position where the included angle between the guy cable and the bridge floor is small, the arm support of the bridge inspection vehicle is blocked by the guy cable and is inconvenient to extend out of the bridge floor, and the safety risk is large.
Therefore, a maintenance truss vehicle needs to be additionally arranged below the concrete cable-stayed bridge. In the prior art, in order to facilitate installation and maintenance of the truss vehicle, embedded parts (the embedded parts refer to steel members such as steel plates) need to be embedded in the concrete cable-stayed bridge, then the rails and the embedded parts are fixed by using bolts, and finally the travelling mechanism for maintenance of the truss vehicle is installed on the rails.
However, in the case of the early-built concrete cable-stayed bridge, the embedded parts are not embedded in the concrete cable-stayed bridge, so that it is difficult to install the rails, and it is difficult to install and maintain the truss car.
Therefore, how to install a track on a concrete cable-stayed bridge without embedded parts is a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention aims at the defects in the prior art and provides a track system for additionally installing and overhauling a truss car on a concrete cable-stayed bridge and a use method thereof.
In order to realize the purpose, the invention provides the following technical scheme:
the utility model provides a concrete cable-stay bridge installs additional and overhauls truss car and uses rail system, including mounting bracket and track, the mounting bracket includes the backup pad, first connecting plate, the second connecting plate, first splint, the second splint, the fixed plate, the backup pad is equipped with two side by side, first connecting plate and second connecting plate are all located between two backup pads, first connecting plate is connected with the upper portion of backup pad, the sub-unit connection of second connecting plate and backup pad, first splint are connected with the lower extreme of first connecting plate, the second splint are connected with the upper end of second connecting plate, the fixed plate is connected with the lower extreme of second connecting plate, the track is connected with the fixed plate.
Furthermore, the first connecting plates and the second connecting plates are arranged side by side, a first retaining plate is arranged between the two first connecting plates and connected with the first connecting plates, a second retaining plate is arranged between the two second connecting plates and connected with the second connecting plates.
Furthermore, the upper end face of the fixed plate is provided with a first reinforcing plate and a second reinforcing plate, the first reinforcing plate is arranged between the two second connecting plates, and the second reinforcing plate is arranged on one side, far away from the first reinforcing plate, of the second connecting plate.
Furthermore, the track is connected with the fixed plate through a fixed bolt, and the pretightening force of the fixed bolt is 4.5-5.5 KN.
A use method of a track system for additionally installing and overhauling a truss car on a concrete cable-stayed bridge comprises the following steps:
(1) inserting an original bridge tooth block arranged on the lower end face of the concrete cable-stayed bridge between a first clamping plate and a second clamping plate;
(2) fixing the first splint and the original bridge block by using a first anchoring part;
(3) fixing a second splint and the original bridge block by using a second anchoring part;
(4) and installing the running mechanism of the maintenance truss vehicle on the track.
Further, in the step (1), a leveling layer and a backing plate are sequentially laid between the first clamping plate and the original bridge block from bottom to top.
Furthermore, the first anchoring part comprises a first special inverted-cone-shaped adhesive anchor bolt and a first anchor bolt nut, the first special inverted-cone-shaped adhesive anchor bolt is sequentially connected with the first clamping plate and the original bridge tooth block from top to bottom, the first anchor bolt nut is arranged on the upper end face of the first clamping plate, and the first anchor bolt nut is matched with the first special inverted-cone-shaped adhesive anchor bolt; the second anchor assembly comprises a second special inverted-cone-shaped adhesive anchor bolt and a second anchor bolt nut, the second special inverted-cone-shaped adhesive anchor bolt is sequentially connected with the second clamping plate and the original bridge tooth block from bottom to top, the second anchor bolt nut is arranged on the lower end face of the second clamping plate, and the second anchor bolt nut is matched with the second special inverted-cone-shaped adhesive anchor bolt.
Furthermore, an elastic part is arranged between the second clamping plate and the second anchor bolt nut.
The invention has the following beneficial effects:
1. the track can be installed on the concrete cable-stayed bridge without the embedded part, the embedded part is not needed, the structure is simple, the construction is convenient, the maintenance of the truss car can be conveniently carried out, the construction period is shortened, and the construction cost is reduced.
In addition, the invention is particularly suitable for concrete cable-stayed bridges which cannot embed embedded parts because the original bridge tooth blocks are smaller or have the longitudinal prestressed tooth block blocking.
2. According to the invention, by arranging the first retaining plate and the second retaining plate, the stability and the strength of the integral structure of the mounting frame can be improved, the strength and the safety of the installation of the track and the mounting frame are improved, the safety of the maintenance of the truss vehicle in the walking along the track is further improved, and the safety and the efficiency of the maintenance of the concrete cable-stayed bridge are improved.
3. According to the invention, the first reinforcing plate and the second reinforcing plate are arranged, so that the firmness and the strength of the fixing plate and the second connecting plate are improved, the strength of the mounting frame is improved, the strength and the safety of the rail and the mounting frame which are mounted together are improved, the safety of the maintenance of the truss vehicle in the walking along the rail is improved, and the safety and the efficiency of the maintenance of the concrete cable-stayed bridge are improved.
4. According to the invention, the pre-tightening force of the fixing bolt is 4.5-5.5 KN, so that the rail can be conveniently released and deformed, the safety of the maintenance of the truss vehicle in walking along the rail is improved, and the safety and the efficiency of the maintenance of the concrete cable-stayed bridge are improved. If the pretightening force of the fixing bolt is too large (for example, 155KN pretightening force is adopted), the deformation of the track caused by temperature change cannot be released, and an overlarge longitudinal force H is generated at an anchor seat (the fixing bolt connecting the track and the fixing plate) close to a pier and a bridge tower to cause the track to be bent and deformed, so that on one hand, when the maintenance truss vehicle travels along the track, the maintenance truss vehicle can collide with the position of the track where the track is bent and deformed; on the other hand, the track gauge (namely the length of the track) of the track is changed due to the bending deformation of the track, so that the maintenance of the truss car is difficult to walk, and the clamped track even falls off the track.
5. According to the invention, by arranging the backing plate and the leveling layer, the gap between the first clamping plate and the original bridge tooth block can be filled with the backing plate and the leveling layer, so that the original bridge tooth block can be conveniently and fully clamped by the first clamping plate and the second clamping plate, the mounting frame is more stably and firmly fixed on the original bridge tooth block, the track is safer to mount on the mounting frame, the safety of the maintenance truss vehicle in walking along the track is improved, and the safety and the efficiency of the maintenance of the concrete cable-stayed bridge are improved.
6. The first special inverted-cone-shaped adhesive anchor bolt and the second special inverted-cone-shaped adhesive anchor bolt are adopted, so that the mounting frame can be suitable for cracked concrete, the stability and firmness of the mounting frame fixed on the original bridge tooth block are improved, the track is mounted on the mounting frame more safely, the safety of the maintenance truss vehicle in walking along the track is improved, and the safety and the efficiency of maintenance of the concrete cable-stayed bridge are improved.
7. By arranging the elastic piece, the mounting frame disclosed by the invention can adapt to vertical deformation, so that the firmness and stability of the mounting frame are improved, the track is more safely mounted on the mounting frame, the safety of the maintenance of the truss vehicle in the walking process along the track is improved, and the safety and efficiency of the maintenance of the concrete cable-stayed bridge are improved. Because whole mounting bracket is a stretch-bending system, overhaul the purlin car walking in-process, the second splint have vertical deformation with the hookup location of the sticky type crab-bolt of the special back taper of second, this deformation must release, if screw up the sticky type crab-bolt of the special back taper of second and do not set up the spring, then overhaul purlin car gravity and all bear by the sticky type crab-bolt of the special back taper of second, this will make the sticky type crab-bolt of the special back taper of second extract, thereby make whole mounting bracket be in horizontal motor-driven system, overhaul the purlin car and have the derailment risk at any time.
Drawings
FIG. 1 is a first schematic structural view of a track system for a concrete cable-stayed bridge additionally provided with a maintenance truss vehicle;
FIG. 2 is a schematic structural view II of a track system for additionally installing and maintaining a truss vehicle on a concrete cable-stayed bridge;
FIG. 3 is a schematic structural view III of a track system for a concrete cable-stayed bridge additionally provided with a maintenance truss vehicle;
FIG. 4 is a front view of the support plate;
FIG. 5 is a top view of the support plate;
FIG. 6 is a schematic structural diagram of a first connecting plate;
FIG. 7 is a schematic structural view of a second connecting plate;
FIG. 8 is a schematic view of a first cleat;
FIG. 9 is a schematic view of a second cleat;
FIG. 10 is a schematic structural view of a fixing plate;
FIG. 11 is a schematic view of the structure of the first retaining plate;
FIG. 12 is a schematic view of a second retainer plate;
FIG. 13 is a schematic structural view of a first stiffener;
FIG. 14 is a schematic structural view of a second reinforcing plate;
FIG. 15 is a first schematic view of a track system for a concrete cable-stayed bridge with a service girder;
FIG. 16 is a partial enlarged view of FIG. 15A;
FIG. 17 is a cross-sectional view taken at FIG. 16B-B;
FIG. 18 is a first cross-sectional view taken at line C-C of FIG. 16;
FIG. 19 is a second sectional view taken at line C-C of FIG. 16;
FIG. 20 is a cross-sectional view taken at D-D of FIG. 16;
FIG. 21 is a cross-sectional view taken at E-E of FIG. 16;
FIG. 22 is a cross-sectional view taken at FIG. 16F-F;
FIG. 23 is a schematic view of the construction of the backing plate;
FIG. 24 is a schematic view showing a second example of the use of a track system for a concrete cable-stayed bridge with a service girder;
fig. 25 is a partial enlarged view of fig. 24G.
In the figure:
1-supporting plate, 1-1-first supporting plate mounting hole, 1-2-second supporting plate mounting hole,
2-first connection plate, 2-1-first connection plate mounting hole, 2-2-first retaining plate,
3-second connecting plate, 3-1-second connecting plate mounting hole, 3-2-second holding plate,
4-a first splint, 4-1-a first splint mounting hole,
5-a second splint, 5-1-a second splint mounting hole,
6-fixing plate, 6-1-fixing plate mounting hole, 6-2-first reinforcing plate, 6-3-second reinforcing plate,
7-the track(s) is (are),
8-backing plate, 8-1-backing plate mounting hole,
9-concrete cable-stayed bridge, 9-1-original bridge tooth block, 9-2-leveling layer,
10-maintenance truss car, 10-1-traveling mechanism,
11-first bolt, 11-1-head of first bolt, 11-2-first nut,
12-second bolt, 12-1-head of second bolt, 12-2-second nut,
13-fixing bolt, 13-1-head of fixing bolt, 13-2-fixing nut,
14-a first special inverted conical adhesive anchor bolt, 14-1-a first anchor bolt nut,
15-a second special inverted conical adhesive anchor bolt, 15-1-a second anchor bolt nut,
16-spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
A track system for additionally installing and overhauling a truss car for a concrete cable-stayed bridge is shown in figures 1 to 14 and comprises an installation frame and a track 7.
The mounting bracket includes backup pad 1, first connecting plate 2, second connecting plate 3, first splint 4, second splint 5, fixed plate 6.
The two support plates 1 are arranged side by side, the upper half part of each support plate 1 is provided with a first support plate mounting hole 1-1, and the lower half part of each support plate 1 is provided with a second support plate mounting hole 1-2.
First connecting plate 2 is equipped with two side by side, and two first connecting plate 2 all locate between two backup pads 1. The first connecting plate 2 is provided with a first connecting plate mounting hole 2-1. The first connecting plate 2 is fixed to the upper half of the support plate 1 by a first bolt 11, specifically: firstly, performing sand blasting and rust removing treatment on the surface of the first connecting plate 2 and the surface of the supporting plate 1; then, inserting a first bolt 11 into the first connecting plate mounting hole 2-1 and the first support plate mounting hole 1-1 in sequence; finally, the first nut 11-2 is screwed on the first bolt 11 so that the first connection plate 2 and the support plate 1 are sandwiched between the head 11-1 of the first bolt and the first nut 11-2, thereby fixing the first connection plate 2 and the support plate 1 together. The pretension of the first bolt 11 is 155 KN.
A first holding plate 2-2 is provided between the two first connecting plates 2. The upper ends of the first holding plate 2-2 and the two first connecting plates 2 are welded and fixed, specifically: the weld is a double-sided fillet weld, the weld height is a thinner plate thickness (when the first connection plate 2 and the first holding plate 2-2 have the same thickness, the weld height is the thickness of the first connection plate 2 or the thickness of the first holding plate 2-2; when the first connection plate 2 has a thickness smaller than the first holding plate 2-2, the weld thickness is the thickness of the first connection plate 2; when the first connection plate 2 has a thickness larger than the first holding plate 2-2, the weld thickness is the thickness of the first holding plate 2-2), and the weld grade is class II.
The second connecting plates 3 are arranged side by side, and the two second connecting plates 3 are arranged between the two supporting plates 1. The second connecting plate 3 is provided with a second connecting plate mounting hole 3-1. The second connecting plate 3 is fixed with the lower half part of the supporting plate 1 through a second bolt 12, and is specific: firstly, performing sand blasting and rust removing treatment on the surface of the second connecting plate 3 and the surface of the supporting plate 1; then, inserting a second bolt 12 into the second connecting plate mounting hole 3-1 and the second support plate mounting hole 1-2 in sequence; finally, the second nut 12-2 is screwed on the second bolt 12 so that the second connecting plate 3 and the support plate 1 are sandwiched between the head 12-1 of the second bolt and the second nut 12-2, thereby fixing the second connecting plate 3 and the support plate 1 together. The pretension of the second bolt 12 is 155 KN.
A second holding plate 3-2 is arranged between the two second connecting plates 3. The upper end welded fastening of second holding plate 3-2 and second connecting plate 3 is specific: the weld is a double-sided fillet weld, the height of the weld is the thickness of a thin plate (when the thicknesses of the second connecting plate 3 and the second retaining plate 3-2 are the same, the height of the weld is the thickness of the second connecting plate 3 or the thickness of the second retaining plate 3-2; when the thickness of the second connecting plate 3 is smaller than the thickness of the second retaining plate 3-2, the thickness of the weld is the thickness of the second connecting plate 3; when the thickness of the second connecting plate 3 is larger than the thickness of the second retaining plate 3-2, the thickness of the weld is the thickness of the second retaining plate 3-2), and the grade of the weld is II.
Fixed plate 6 is fixed with the lower extreme welded fastening of two second connecting plates 3, and is specific: the welding seam is I-grade welding seam and is welded completely. The fixing plate 6 is provided with a fixing plate mounting hole 6-1.
The upper end surface of the fixed plate 6 is provided with a first reinforced plate 6-2 and a second reinforced plate 6-3. The first reinforcing plate 6-2 is arranged between the two second connecting plates 3, and the second reinforcing plate 6-3 is arranged on one side of the second connecting plate 3 far away from the first reinforcing plate 6-2. Second connecting plate 3 and fixed plate 6 all with first reinforcing plate 6-2 welded fastening, specific: the welding seam is I-grade welding seam and is welded completely. Second connecting plate 3 and fixed plate 6 all with second reinforcing plate 6-3 welded fastening, specific: the welding seam is I-grade welding seam and is welded completely.
The upper end of the rail 7 is provided with a rail 7 mounting hole (not shown). The upper end of track 7 is fixed with fixed plate 6 through fixing bolt 13, and is specific: firstly, performing sand blasting and rust removing treatment on the surface of the rail 7 and the surface of the fixing plate 6; then, inserting the fixing bolt 13 into the mounting hole of the track 7 and the mounting hole 6-1 of the fixing plate in sequence; finally, the fixing nut 13-2 is screwed on the fixing bolt 13 so that the upper end of the rail 7 and the fixing plate 6 are sandwiched between the head 13-1 of the fixing bolt and the fixing nut 13-2, thereby fixing the rail 7 and the fixing plate 6 together.
When the total length of the track 7 exceeds 150m, if the fixing bolts 13 connecting the track 7 and the fixing plate 6 are screwed down according to the pretightening force of 155kN, the deformation of the track 7 caused by the temperature change cannot be released, and an overlarge longitudinal force H (force along the direction of the track 7) is generated at an anchor seat (the fixing bolts 13 connecting the track 7 and the fixing plate 6) close to a pier and a bridge tower to cause the bending deformation of the track 7, so that on one hand, when the maintenance truss vehicle 10 travels along the track 7, the maintenance truss vehicle 10 collides with the position of the bending deformation of the track 7; on the other hand, the track gauge of the rail 7 (i.e., the length of the rail 7) is changed due to the bending deformation of the rail 7, so that the service trolley 10 is difficult to walk, and the stuck rail or even the derailment falls. Therefore, the fixing bolts 13 connecting the track 7 and the fixing plate 6 can not apply excessive pretightening force, and are controlled according to the pretightening force of each fixing bolt 13 of 4.5KN-5.5KN, preferably 5KN is adopted, so that the track 7 can be conveniently released and deformed, the safety of the maintenance of the truss car 10 walking along the track 7 is improved, and the safety and the efficiency of the maintenance of the concrete cable-stayed bridge 9 are improved.
As shown in fig. 19, at the junction of two adjacent rails 7, a fixing bolt 13 is arranged between two second connecting plates 3 and on the side of the second connecting plate 3 away from the first reinforcing plate 6-2.
A method for using a track 7 system for additionally installing and repairing a truss car 10 on a concrete cable-stayed bridge 9, as shown in fig. 15-25, comprises the following steps:
(1) the original bridge tooth block 9-1 arranged on the lower end surface of the concrete cable-stayed bridge 9 is inserted between the first clamping plate 4 and the second clamping plate 5.
(2) The first splint 4 is fixed with the original bridge block 9-1 by using a first anchoring part, specifically: the first anchoring part comprises a first special inverted-cone-shaped adhesive anchor bolt 14 and a first anchor bolt nut 14-1, wherein the material grade of the first special inverted-cone-shaped adhesive anchor bolt 14 is 8.8 grade, and the technical standard is implemented according to technical Specification for reinforcing concrete structures (GB 50367-2013). Firstly, inserting a first special inverted conical adhesive anchor bolt 14 into a first splint mounting hole 4-1; then, screwing the first special inverted conical adhesive anchor bolt 14 into a first original bridge block 9-1 mounting hole (not shown in the figure) arranged on the upper end surface of the original bridge block 9-1; finally, the first anchor nut 14-1 is screwed on the first special reverse taper adhesive type anchor 14 so that the first splint 4 is pressed against the upper end surface of the original block 9-1 by the first anchor nut 14-1, thereby fixing the first splint 4 to the original block 9-1.
(3) And fixing the second splint 5 and the original bridge block 9-1 by using a second anchoring part, specifically: the second anchoring part comprises a second special inverted-cone-shaped adhesive anchor bolt 15 and a second anchor bolt nut 15-1, the material grade of the second special inverted-cone-shaped adhesive anchor bolt 15 is 8.8, and the technical standard is implemented according to technical Specification for reinforcing concrete structures (GB 50367-2013). Firstly, inserting a second special inverted conical adhesive anchor bolt 15 into a second splint mounting hole 5-1; then, screwing a second special inverted conical adhesive anchor bolt 15 into a mounting hole (not shown in the figure) of a second original bridge block 9-1 arranged on the lower end face of the original bridge block 9-1; finally, a second anchor bolt nut 15-1 is screwed on the second special reverse taper adhesive type anchor bolt 15 so that the second clamping plate 5 is pressed against the lower end face of the original bridge block 9-1 by the first anchor bolt nut 14-1, thereby fixing the second clamping plate 5 to the original bridge block 9-1.
Wherein, sticky type crab-bolt 14 of first special back taper and the sticky type crab-bolt 15 of second special back taper can be applicable to the fracture concrete to improved the stability and the fastness of mounting bracket fixing on former bridge cogged block 9-1, made track 7 install safer on the mounting bracket then, improved the security of overhauing the truss car 10 along the walking of track 7, improved the security and the efficiency of overhauing concrete cable-stay bridge 9.
(4) The traveling mechanism 10-1 of the service truss 10 is mounted on the rail 7. The overhaul truss vehicle 10 and the traveling mechanism 10-1 of the overhaul truss vehicle 10 are existing devices and technologies, and the traveling mechanism 10-1 of the overhaul truss vehicle 10 can be directly hung on the track 7.
Further, when a gap is formed between the upper end face of the original bridge block 9-1 and the lower end face of the first clamping plate 4, a backing plate 8 and a leveling layer 9-2 are sequentially arranged between the first clamping plate 4 and the original bridge block 9-1 from top to bottom. Specifically, the method comprises the following steps: firstly, paving a leveling layer on the upper end surface of an original bridge block 9-1 by using epoxy mortar; then, a steel backing plate 8 is laid between the leveling layer 9-2 and the first clamping plate 4; then, inserting a first special inverted-cone-shaped adhesive anchor bolt 14 into the first splint mounting hole 4-1, the cushion plate mounting hole 8-1 arranged on the cushion plate 8, and the leveling layer 9-2 mounting hole (not shown) arranged on the leveling layer 9-2; then, screwing the first special inverted conical adhesive anchor bolt 14 into the mounting hole of the first original bridge block 9-1; finally, the first anchor nut 14-1 is screwed on the first special reverse taper adhesive type anchor 14 so that the first splint 4 is pressed against the upper end surface of the original block 9-1 by the first anchor nut 14-1, thereby fixing the first splint 4 to the original block 9-1.
Through setting up backing plate 8, screed-coat 9-2, can fill the space between first splint 4 and the former bridge cogged block 9-1 to can make things convenient for first splint 4 and second splint 5 fully to clip former bridge cogged block 9-1, make the mounting bracket fix more stable firm on former bridge cogged block 9-1, make track 7 install on the mounting bracket safer then, improve the security of overhauing the truss car 10 along the walking of track 7, improve the security and the efficiency of overhauing concrete cable-stay bridge 9.
Further, an elastic part is arranged between the second clamping plate 5 and the second anchor bolt nut 15-1, the elastic part uses a spring 16, the rigidity of the spring 16 is not more than 30N/mm, and the effective compression length of the spring 16 after installation is not less than 3 mm. Firstly, inserting a second special inverted conical adhesive anchor bolt 15 into a second splint mounting hole 5-1; then, screwing a second special inverted conical adhesive anchor bolt 15 into the mounting hole of the second original bridge block 9-1; then, a spring 16 is sleeved on a second special inverted conical adhesive anchor bolt 15 positioned on the lower end surface of the second clamping plate 5; finally, a second anchor nut 15-1 is screwed on the second special reverse taper adhesive type anchor 15 so that the spring 16 is sandwiched between the second anchor nut 15-1 and the second clamping plate 5, and the second clamping plate 5 is pressed against the lower end face of the original block 9-1 by the spring 16, thereby fixing the second clamping plate 5 to the original block 9-1.
Through setting up spring 16, the mounting bracket of this embodiment can adapt to vertical deformation to improve the fastness and the stability of mounting bracket, make track 7 install safer on the mounting bracket then, improved the security of overhauing the purlin car 10 along the walking of track 7, improved the security and the efficiency of overhauing concrete cable-stay bridge 9. Because the whole mounting frame is a stretch bending system: in the walking process of the overhauling truss car 10, the second splint mounting hole 5-1 of the second splint 5 has 3mm vertical deformation, the deformation must be released, if the second special inverted cone adhesive anchor bolt 15 is screwed up and the spring 16 is not arranged, the gravity of the overhauling truss car 10 is completely borne by the second special inverted cone adhesive anchor bolt 15, the second special inverted cone adhesive anchor bolt 15 can be pulled out, the whole mounting frame is in a transverse maneuvering system, and the overhauling truss car 10 has derailing risk at any time. In short, the second special inverted-cone-shaped anchor bolt 15 is shear-resistant, not tensile.
Through the use process, the track system for additionally installing and overhauling the truss car for the concrete cable-stayed bridge can install the track 7 on the concrete cable-stayed bridge 9 without the embedded part, the embedded part does not need to be arranged, the structure is simple, the construction is convenient, the truss car 10 can be conveniently additionally installed and overhauled, the construction period is shortened, and the construction cost is reduced.
Moreover, the track system for additionally installing and maintaining the truss girder of the concrete cable-stayed bridge according to the embodiment is particularly suitable for the concrete cable-stayed bridge 9 in which embedded parts cannot be embedded due to the fact that the original bridge tooth block 9-1 is small or the longitudinal prestressed tooth block (the longitudinal prestressed tooth block refers to the tooth block for anchoring the longitudinal prestress of the concrete cable-stayed bridge 9) blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. The utility model provides a concrete cable-stay bridge installs additional and overhauls truss car and uses rail system, a serial communication port, including mounting bracket and track, the mounting bracket includes the backup pad, first connecting plate, the second connecting plate, first splint, the second splint, the fixed plate, the backup pad is equipped with two side by side, first connecting plate and second connecting plate are all located between two backup pads, first connecting plate is connected with the upper portion of backup pad, the sub-unit connection of second connecting plate and backup pad, first splint are connected with the lower extreme of first connecting plate, the second splint are connected with the upper end of second connecting plate, the fixed plate is connected with the lower extreme of second connecting plate, the track is connected with the fixed plate.
2. The track system for the additionally installed overhaul truss vehicle of the concrete cable-stayed bridge according to claim 1, wherein the number of the first connecting plates and the second connecting plates are two, two first retaining plates are arranged between the two first connecting plates and connected with the first connecting plates, and two second retaining plates are arranged between the two second connecting plates and connected with the second connecting plates.
3. The track system for the concrete cable-stayed bridge additionally provided with the overhauling truss as recited in claim 2, wherein a first reinforcing plate and a second reinforcing plate are arranged on the upper end surface of the fixing plate, the first reinforcing plate is arranged between the two second connecting plates, and the second reinforcing plate is arranged on one side of the second connecting plate far away from the first reinforcing plate.
4. The track system for the concrete cable-stayed bridge additionally provided with the overhauling truss car as claimed in claim 1, wherein the track is connected with the fixing plate through a fixing bolt, and the pre-tightening force of the fixing bolt is 4.5KN-5.5 KN.
5. Use of a track system for a concrete cable-stayed bridge with an additional service girder according to claims 1-4, characterized in that it comprises the following steps:
(1) inserting an original bridge tooth block arranged on the lower end face of the concrete cable-stayed bridge between a first clamping plate and a second clamping plate;
(2) fixing the first splint and the original bridge block by using a first anchoring part;
(3) fixing a second splint and the original bridge block by using a second anchoring part;
(4) and installing the running mechanism of the maintenance truss vehicle on the track.
6. The use method of the track system for additionally installing and repairing the truss girder of the concrete cable-stayed bridge according to claim 5, wherein in the step (1), a leveling layer and a backing plate are sequentially laid between the first clamping plate and the original bridge block from bottom to top.
7. The use method of the track system for additionally installing and overhauling a truss car for the concrete cable-stayed bridge according to claim 5, wherein the first anchoring part comprises a first special inverted-cone-shaped adhesive anchor bolt and a first anchor bolt nut, the first special inverted-cone-shaped adhesive anchor bolt is sequentially connected with the first clamping plate and the original bridge tooth block from top to bottom, the first anchor bolt nut is arranged on the upper end face of the first clamping plate, and the first anchor bolt nut is matched with the first special inverted-cone-shaped adhesive anchor bolt;
the second anchor assembly comprises a second special inverted-cone-shaped adhesive anchor bolt and a second anchor bolt nut, the second special inverted-cone-shaped adhesive anchor bolt is sequentially connected with the second clamping plate and the original bridge tooth block from bottom to top, the second anchor bolt nut is arranged on the lower end face of the second clamping plate, and the second anchor bolt nut is matched with the second special inverted-cone-shaped adhesive anchor bolt.
8. The method of claim 7, wherein a resilient member is disposed between said second clamping plate and said second anchor bolt nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010392338.1A CN111441245B (en) | 2020-05-11 | 2020-05-11 | Rail system for concrete cable-stayed bridge additionally-installed overhauling truss and application method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010392338.1A CN111441245B (en) | 2020-05-11 | 2020-05-11 | Rail system for concrete cable-stayed bridge additionally-installed overhauling truss and application method thereof |
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| CN111441245A true CN111441245A (en) | 2020-07-24 |
| CN111441245B CN111441245B (en) | 2024-08-09 |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL9500609A (en) * | 1995-03-30 | 1996-11-01 | Geruestbau Broecking Gmbh | Rolling suspended/free-standing scaffold for bridges |
| KR200239390Y1 (en) * | 2001-04-10 | 2001-10-11 | 주식회사 경포공영 | structure of rail connection in consideration of thermal expansion for bridge inspection vehicle |
| KR20020005788A (en) * | 2000-07-10 | 2002-01-18 | 황무영 | mobile and fixative bridge maintaining system |
| CN101824795A (en) * | 2010-03-30 | 2010-09-08 | 中铁二院工程集团有限责任公司 | Installation component of steel truss girder cable-stayed bridge inhibition vortex-induced vibration device |
| KR100987297B1 (en) * | 2010-02-12 | 2010-10-12 | 이희연 | Repair and inspection apparatus of bridge |
| CN201850506U (en) * | 2010-11-16 | 2011-06-01 | 成都市新筑路桥机械股份有限公司 | Lower chord checking mechanism for steel truss bridge |
| CN103422433A (en) * | 2013-09-05 | 2013-12-04 | 武汉武桥交通装备技术有限公司 | Bridge inspection car running track manual shifter |
| CN203393612U (en) * | 2013-05-24 | 2014-01-15 | 武船重型工程股份有限公司 | Track of bridge checking vehicle |
| CN106049271A (en) * | 2016-07-19 | 2016-10-26 | 中交公局第三工程有限公司 | Track connecting device for bridge maintenance car and construction method thereof |
| CN205893910U (en) * | 2016-06-17 | 2017-01-18 | 北京恒力铁科技术开发有限公司 | A connect and embrace card for steel truss bridge inspection trolley |
| JP2018017076A (en) * | 2016-07-29 | 2018-02-01 | Ｏ・Ｔ・テクノリサーチ株式会社 | Bridge inspection system |
| CN108442247A (en) * | 2018-04-13 | 2018-08-24 | 云南省公路科学技术研究院 | Cable-stayed bridge repair apparatus |
| CN210372331U (en) * | 2019-06-05 | 2020-04-21 | 浙江绿筑集成科技有限公司 | Beam bottom pipeline sectional shelf-unit |
| CN212505853U (en) * | 2020-05-11 | 2021-02-09 | 山东省交通规划设计院有限公司 | Track system for additionally installing and overhauling truss vehicle for concrete cable-stayed bridge |
-
2020
- 2020-05-11 CN CN202010392338.1A patent/CN111441245B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL9500609A (en) * | 1995-03-30 | 1996-11-01 | Geruestbau Broecking Gmbh | Rolling suspended/free-standing scaffold for bridges |
| KR20020005788A (en) * | 2000-07-10 | 2002-01-18 | 황무영 | mobile and fixative bridge maintaining system |
| KR200239390Y1 (en) * | 2001-04-10 | 2001-10-11 | 주식회사 경포공영 | structure of rail connection in consideration of thermal expansion for bridge inspection vehicle |
| KR100987297B1 (en) * | 2010-02-12 | 2010-10-12 | 이희연 | Repair and inspection apparatus of bridge |
| CN101824795A (en) * | 2010-03-30 | 2010-09-08 | 中铁二院工程集团有限责任公司 | Installation component of steel truss girder cable-stayed bridge inhibition vortex-induced vibration device |
| CN201850506U (en) * | 2010-11-16 | 2011-06-01 | 成都市新筑路桥机械股份有限公司 | Lower chord checking mechanism for steel truss bridge |
| CN203393612U (en) * | 2013-05-24 | 2014-01-15 | 武船重型工程股份有限公司 | Track of bridge checking vehicle |
| CN103422433A (en) * | 2013-09-05 | 2013-12-04 | 武汉武桥交通装备技术有限公司 | Bridge inspection car running track manual shifter |
| CN205893910U (en) * | 2016-06-17 | 2017-01-18 | 北京恒力铁科技术开发有限公司 | A connect and embrace card for steel truss bridge inspection trolley |
| CN106049271A (en) * | 2016-07-19 | 2016-10-26 | 中交公局第三工程有限公司 | Track connecting device for bridge maintenance car and construction method thereof |
| JP2018017076A (en) * | 2016-07-29 | 2018-02-01 | Ｏ・Ｔ・テクノリサーチ株式会社 | Bridge inspection system |
| CN108442247A (en) * | 2018-04-13 | 2018-08-24 | 云南省公路科学技术研究院 | Cable-stayed bridge repair apparatus |
| CN210372331U (en) * | 2019-06-05 | 2020-04-21 | 浙江绿筑集成科技有限公司 | Beam bottom pipeline sectional shelf-unit |
| CN212505853U (en) * | 2020-05-11 | 2021-02-09 | 山东省交通规划设计院有限公司 | Track system for additionally installing and overhauling truss vehicle for concrete cable-stayed bridge |
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| Publication number | Publication date |
|---|---|
| CN111441245B (en) | 2024-08-09 |
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