CN108643038B - Inspection device and inspection method for truss bridge - Google Patents
Inspection device and inspection method for truss bridge Download PDFInfo
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- CN108643038B CN108643038B CN201810325836.7A CN201810325836A CN108643038B CN 108643038 B CN108643038 B CN 108643038B CN 201810325836 A CN201810325836 A CN 201810325836A CN 108643038 B CN108643038 B CN 108643038B
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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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Abstract
The present invention provides an inspection apparatus for a truss bridge, comprising: an inspection vehicle, the inspection vehicle comprising: the bridge comprises a horizontal truss and a vertical truss which is used as a passage for an inspector to inspect the side face of the bridge; the walking mechanism is used for driving the inspection vehicle to move longitudinally, and the horizontal truss is fixedly placed on the walking mechanism; the rotary suspension arm is arranged on the side surface of the horizontal truss, the rotary suspension arm is in the vertical direction when in a non-working state, and the rotary suspension arm is in the horizontal direction when in a working state; and a node spanning member provided at a node of the truss bridge for the inspection vehicle to pass through the node; wherein, the rotary suspension arm can take down or place the span node piece when in a working state. The invention also provides an inspection method for the truss bridge, which is used for inspecting the truss bridge by using the inspection device.
Description
Technical Field
The present invention relates to a bridge inspection apparatus, and in particular to an inspection apparatus for a truss bridge. The invention also relates to an inspection method for the truss bridge.
Background
At present, steel truss bridges are widely applied to bridge construction. In the application process of the steel truss bridge, regular inspection and maintenance are required. The steel truss girder mainly comprises the rod pieces, and the connection between the rod pieces is mostly connected through node plates and bolts. In the process of inspection and maintenance, in order to span the gusset plate, the prior art adopts a mode that a pad is firstly adopted to improve the track foundation at intervals in the longitudinal bridge direction on the top of an upper chord of a steel truss girder, and then a track is placed on the pad. Or welding connecting pieces on the tops of the upper chords of the steel trussed beams at intervals in the longitudinal bridge direction, arranging a short section of walking beam below the inspection vehicle, and temporarily fixing the walking beam and the inspection vehicle alternately with the connecting pieces, so that the walking mode is realized through bridge nodes.
However, the above way of arranging the rails of the steel truss bridge still has some problems. For example, rails, pedestals and their fixtures need to be laid on top of the full bridge, which results in long construction and high cost. In addition, although the mode of only welding the connecting piece does not need a full-bridge laying track, the walking process is complicated, the speed is slow, and as the fixed points are few, disastrous results can be caused as long as one fulcrum has a problem in the process of advancing, the stability is poor, the safety performance is poor, and the inspection and maintenance efficiency is low.
Disclosure of Invention
The invention aims to provide an inspection device for a truss bridge, which enables an inspection vehicle to continuously walk by arranging a node spanning member at a node of the truss bridge, has high running speed, is safe and reliable, greatly improves the efficiency of inspecting and maintaining the truss of the bridge, avoids laying a track on a full bridge, and greatly reduces the total construction cost.
According to a first aspect of the present invention, there is provided an inspection apparatus for a truss bridge, comprising: an inspection vehicle, the inspection vehicle comprising: the bridge comprises a horizontal truss and a vertical truss which is used as a passage for an inspector to inspect the side face of the bridge; the walking mechanism is used for driving the inspection vehicle to move longitudinally, and the horizontal truss is fixedly placed on the walking mechanism; the rotary suspension arm is arranged on the side surface of the horizontal truss and has a non-working state in the vertical direction and a working state in the horizontal direction; and a node spanning member provided at a node of the truss bridge for the inspection vehicle to pass through the node; wherein the rotary suspension arm can take down or place the node spanning member when in a working state.
In a preferred embodiment, the cross node member is fixed to the truss of the bridge by clamps, and the clamps are symmetrically arranged on two lateral sides of the cross node member.
In a preferred embodiment, the node spanning member includes a planar top plate and a slanted top plate connected to both ends of the planar top plate, and a transverse support plate and a longitudinal support plate configured in a trapezoidal shape are provided on a bottom surface of the planar top plate.
In a preferred embodiment, a lifting lug is arranged on the plane top plate of the cross-joint member.
In a preferred embodiment, the rotary boom comprises a support cable for providing vertical load bearing capacity and a lifting chain engageable with the lifting lug to lift the node spanning member.
In a preferred embodiment, a chuck connector is arranged on the longitudinal support plate, and a plurality of threaded holes are uniformly spaced on the chuck connector along the longitudinal bridge direction.
In a preferred embodiment, the chuck includes a first clamping portion, a second clamping portion, and a chuck body for connecting the first clamping portion and the second clamping portion.
In a preferred embodiment, the first connecting portion is provided with a threaded hole for mounting a top chuck bolt for providing a vertical fastening force, and the chuck body is provided with a kidney-shaped unthreaded hole for mounting a side chuck bolt for providing a horizontal fastening force.
In a preferred embodiment, a horizontal guide wheel mechanism is arranged on the vertical truss and used for limiting the transverse movement of the inspection vehicle during the traveling process.
According to another aspect of the present invention, there is provided an inspection method for a truss bridge, which inspects the truss bridge using the inspection apparatus as described above, comprising the steps of:
the method comprises the following steps: placing the inspection vehicle on the truss bridge and driving to the node of the truss bridge;
step two: taking down the chuck and the fixing bolt thereof at the node to enable the rotary suspension arm to be in a horizontal working state, taking down the node spanning part through the lifting guide chain, and checking the node;
step three: a second step of reverse operation, namely fixedly mounting the cross-node piece on the truss bridge again;
step four: and driving the inspection vehicle to the next node, and repeating the second step and the third step until all the nodes are inspected.
The inspection device for the truss bridge not only greatly improves the efficiency of inspection and maintenance, but also effectively ensures the safety performance in the working process. The inspection device makes the inspection vehicle pass through the node by walking on the node crossing piece by setting the mode of the node crossing piece at the node of the truss bridge, and avoids the inspection vehicle from directly walking on the node. The running track for the vehicle inspection vehicle is prevented from being laid on the full bridge, and the total engineering cost is greatly reduced. Meanwhile, the inspection vehicle can continuously walk, the running speed is high, safety and reliability are realized, and the efficiency of the inspection device for inspecting and maintaining the truss bridge is greatly improved. In addition, the node piece strides is connected with the truss bridge through dop and bolt adoption clamp connection's mode, and this kind of connected mode simple structure, the operation installation is nimble, simultaneously, can effectively guarantee to stride the stability of node piece. In addition, the inspection vehicle can realize the opening and the returning of the node crossing piece by arranging the rotary suspension arm and the lifting guide chain and utilizing the inspection vehicle, the operation is flexible and convenient, the safety performance is high, and the inspection efficiency is high.
Drawings
The invention will now be described with reference to the accompanying drawings.
Fig. 1 shows a front view of an inspection apparatus for a truss bridge according to the present invention.
Fig. 2 is an enlarged view showing the structure of a node spanning member in the inspection apparatus shown in fig. 1.
Fig. 3 shows a side view of an inspection apparatus for a truss bridge according to the present invention.
Fig. 4 shows the structure of the cross-node member in the inspection apparatus shown in fig. 3.
Fig. 5 shows the structure of the chuck in the inspection apparatus shown in fig. 3.
In the present application, the drawings are all schematic and are used only for illustrating the principles of the invention and are not drawn to scale.
Detailed Description
The invention is described in more detail below with reference to the accompanying drawings. It should be noted that the term "transverse" hereinafter refers to a horizontal direction in the cross section of the truss bridge, and "longitudinal" refers to an extending direction along the truss bridge.
Fig. 1 shows a front view of an inspection apparatus 100 for a truss bridge according to the present invention. As shown in fig. 1, the inspection apparatus 100 includes an inspection vehicle 1. The inspection trolley 1 comprises travelling mechanisms 13, and in one embodiment the inspection trolley 1 is provided with four travelling mechanisms 13. As shown in fig. 2, traveling wheels 14 are provided below the traveling mechanism 13. The inspection vehicle 1 drives the traveling wheels 14 to move longitudinally on the top of the upper chord of the steel truss girder 4 of the truss bridge through the traveling mechanism 13. A horizontal girder 11 is fixedly placed on the traveling mechanism 13 in the transverse direction of the truss bridge, and in one embodiment, two horizontal girders 11 are placed in parallel on the traveling mechanism 13. Two vertical girders 12 are provided on both lateral sides of the inspection vehicle 1, and the vertical girders 12 are used as passages for inspection personnel to inspect the sides of the steel girders 4. A node spanning piece 2 is arranged above an upper chord node plate of the steel truss girder 4, and the inspection vehicle 1 can enable the walking wheels 14 to walk on the node spanning piece 2 to pass through the node. Therefore, the inspection vehicle 1 can safely and quickly travel on the truss bridge, and the safety performance and the working efficiency of the inspection device 100 are greatly improved.
As shown in fig. 2, the inspection vehicle 1 further includes a horizontal guide wheel mechanism 15. The horizontal guide wheel mechanism 15 is provided on the vertical girder 12 of the inspection vehicle 1. During operation, the horizontal guide wheels 15 need to be closely attached to the side edges of the upper flange plate of the steel girder 4 in the height direction. Meanwhile, in order to enable the horizontal guide wheel mechanism 15 to play a role of limiting play when passing through the node, the outer side of the top bearing plate of the node spanning member 2 is flush with the side edge of the upper flange plate of the steel truss girder 4. The horizontal guide wheel mechanism 15 can effectively reduce the transverse movement of the inspection vehicle 1 in the traveling process, and limit the transverse movement of the inspection vehicle 1 in a small range, thereby ensuring the safe and stable operation of the inspection vehicle 1.
As shown in fig. 2 and 3, the node cross-member 2 is fixedly connected to the steel girder 4 of the truss bridge by means of a clip connection. As shown in fig. 4, the node spanning member 2 is constructed in a trapezoidal structure. The node spanning member 2 includes a planar top plate 22, and inclined top plates 21 are connected to both ends of the planar top plate 22. On the bottom surface of the planar top plate 22, there are provided a longitudinal support plate 23 and a lateral support plate 24. Wherein the bottom surface of the planar top plate 22 is the non-working surface of the cross-node member 2. In one embodiment, two longitudinal support plates 23 and two transverse support plates 24 are provided on the node spanning member 2, and the two longitudinal support plates 23 are disposed parallel to each other and the two transverse support plates 24 are also disposed parallel to each other. The longitudinal support plates 23 are configured in a trapezoidal configuration and the transverse support plates 24 are configured in a rectangular configuration. The structure of the cross node piece 2 can effectively ensure the stability of the connection of the truss bridge.
In this embodiment, the inclined top plate 21 can effectively reduce the driving force when the inspection vehicle 1 passes through the node crossing member 2, and effectively increase the stability of the inspection vehicle 1 in the passing process, and simultaneously, improve the working efficiency of the inspection vehicle 1.
In one embodiment, in order to facilitate the positioning of the span node piece 2 on the steel truss girder, the sloping blocks can be welded around the upper chord node plate of the steel truss girder, and meanwhile, the sloping blocks which can be matched with the sloping blocks on the steel truss girder are welded at the corresponding positions in the span node piece 2.
Further, a plurality of lifting lugs 26 are provided on the planar top plate 22 of the node member 2. In one embodiment, four lifting lugs 26 are disposed on the planar top plate 22, and the four lifting lugs 26 are respectively disposed at the areas of the planar top plate 22 near the four corners. The function of the lifting lug 26 will be explained in detail below.
In this embodiment, the cross member 2 further includes a collet connector 25. As shown in fig. 4, the chuck connectors 25 are fixedly disposed on the outer side of the longitudinal support plate 23. The chuck connecting member 25 is configured in a bar shape and is disposed along the extending direction of the longitudinal support plate 23 across the node member 2. The side surface of the chuck connecting piece 25 is provided with a plurality of thread mounting holes which are uniformly arranged at intervals.
According to the invention, the cross member 2 further comprises a cartridge 3. The clamping head 3 is used for clamping and installing the span joint piece on the upper chord member of the steel truss girder. As shown in fig. 5, the chuck 3 includes a first catching portion 31 and a second catching portion 32, and a chuck body 33 for connecting the first catching portion 31 and the second catching portion 32. A screw hole 34 is provided in the first engaging portion 31 of the chuck 3, and a kidney-shaped unthreaded hole 35 is provided in the chuck body 33. In addition, during installation, the plane of dop 3 and the contact of steel truss's last chord member top flange board edge sets up to the inclined plane, can effectively increase dop 3's clamping force like this and compensate the preparation error. The clamping head 3 clamps the span joint piece 2 through a top clamping head bolt and a side clamping head bolt and is arranged on the upper chord of the steel truss girder. In the present embodiment, the clamping force across the node member 2 can be adjusted by increasing or decreasing the number of the chucks 3. The span node piece 2 can be conveniently and quickly fastened to the steel truss girder through the clamping head 3, and the structure is simple, the installation is flexible and convenient, and the inspection efficiency of the inspection vehicle 1 can be effectively improved.
According to the present invention, it is convenient for bridge inspectors to inspect the condition of each bolt at the cross-node member 2. A rotary boom 16 is also arranged on the side surface of the horizontal truss 11 of the inspection vehicle 1, and the rotary boom 16 is normally retracted on the horizontal truss 11 of the inspection vehicle in a vertical non-working state. During operation, the rotating boom 16 can be adjusted to a horizontal operating condition. A boom support cable 17 capable of providing vertical bearing capacity is provided on the rotating boom 16. Meanwhile, the rotating boom 16 is further provided with a lifting guide chain 18, and a lifting hook is connected to the free end of the lifting guide chain 18 and is used for hanging a lifting lug 26 on the node crossing member 2 so as to lift the node crossing member 2, thereby facilitating the inspection of the node crossing condition.
During the inspection process, when the cross member 2 needs to be removed, the chuck 3 and its fixing bolt are removed first. Then, the inspection vehicle 1 is driven to a proper position, and the rotary boom 16 on the inspection vehicle 1 is lowered, and the rotary boom 16 can provide a vertical bearing force through the boom support cable 17. Meanwhile, the rotary suspension arm 16 is hung on four lifting lugs 26 on the node spanning member 2 through a lifting hook at the free end of the lifting guide chain 18, so that the node spanning member 2 is lifted up stably, the node spanning member 2 is lifted up to be separated from the range of a bolt of the node spanning member through the lifting of the lifting guide chain 18, the node spanning member is lowered by moving the inspection vehicle 1, and the node condition of the steel truss girder at the position can be inspected. After the inspection is finished, the steps are operated in a reverse order, and the span node piece 2 can be fixedly installed on the steel truss girder again. The inspection vehicle 1 can conveniently and quickly realize the opening and the returning of the node crossing piece 2 by rotating the suspension arm 16, the operation and the use are flexible and convenient, and the inspection efficiency of the inspection vehicle 1 is greatly improved.
According to another aspect of the present invention, there is provided an inspection method for a truss bridge, which inspects the truss bridge using the inspection apparatus 100 according to the present invention. When the truss bridge is inspected and maintained, firstly, the inspection vehicle 1 is placed on the truss bridge, and the travelling mechanism 13 of the inspection vehicle 1 is started to drive the inspection vehicle 1 to move in the longitudinal bridge direction of the upper chord of the steel truss bridge. When moving to a node, the chuck 3 and its fixing bolt are first removed. Then, the inspection vehicle 1 is driven to a proper position, the rotary suspension arm 16 on the inspection vehicle 1 is put down to be in a horizontal working state, the lifting hook at the tail end of the lifting guide chain is engaged with the lifting lug 26 on the node spanning member 2, the node spanning member 2 is lifted up and lifted up through the lifting guide chain 18, the node spanning member 2 is lifted up and out of the range of the node spanning member bolt, and the condition of the node at the position of the steel truss girder is inspected. After the inspection is finished, the movable inspection vehicle 1 puts down the cross node member 2. And (4) operating the above operation steps in a reverse order, and fixedly installing the span node piece 2 on the steel truss girder again. Thereby, the inspection of the node at that point is completed. Then, the inspection vehicle 1 travels on the cross-node member 2, sequentially travels to a next node through the nodes on the truss bridge, and repeats the above inspection steps when reaching a node, thereby realizing the inspection of all the nodes on the truss bridge.
The inspection device 100 for the truss bridge according to the present invention not only greatly improves the efficiency of inspection and maintenance, but also effectively ensures the safety performance during the working process. The inspection device 100 allows the inspection vehicle 1 to pass through the nodes by walking on the node members 2 by providing the node members 2 at the nodes of the truss bridge, and prevents the walking wheels of the inspection vehicle 1 from directly walking on the nodes. In this way, the running track for the inspection vehicle 2 does not need to be laid on the full bridge, thereby greatly reducing the total construction cost. Meanwhile, the inspection vehicle 1 can continuously travel, has high running speed, is safe and reliable, and greatly improves the efficiency of the inspection device 100 in inspecting and maintaining the truss bridge. In addition, stride node spare 2 and adopt the mode of clamp connection with truss bridge through dop 3 and bolt, this kind of connected mode simple structure, the operation installation is nimble, simultaneously, can effectively guarantee to stride node spare 2 stability. In addition, the inspection vehicle 1 can realize the opening and the returning of the node crossing piece 2 by arranging the rotary suspension arm 16 and the lifting guide chain 18 and utilizing the inspection vehicle 1, the operation is flexible and convenient, and meanwhile, the safety performance and the inspection efficiency can be ensured to be high.
Finally, it should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and do not limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing examples, or that equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. An inspection apparatus for a truss bridge, comprising:
an inspection vehicle (1) comprising:
a horizontal truss (11) and a vertical truss (12) as a passage for an inspector to inspect the side of the bridge;
the walking mechanism (13) is used for driving the inspection vehicle to move longitudinally, and the horizontal truss is fixedly placed on the walking mechanism;
a rotating boom (16) arranged laterally of the horizontal truss, the rotating boom having a non-operating state in a vertical direction and an operating state in a horizontal direction; and
the cross-node piece (2) is arranged at a node of the truss bridge and used for the inspection vehicle to pass through the node, the cross-node piece comprises a plane top plate (22) and an inclined top plate (21) connected with two ends of the plane top plate, a transverse supporting plate (24) and a trapezoidal longitudinal supporting plate (23) are arranged on the bottom surface of the plane top plate, a clamping head connecting piece (25) is arranged on the longitudinal supporting plate and fixedly arranged on the outer side of the longitudinal supporting plate, and the clamping head connecting piece is in a strip block shape and arranged along the extending direction of the longitudinal supporting plate; the horizontal guide wheel mechanism (15) is arranged on the vertical truss and used for limiting the transverse movement of the inspection vehicle during the traveling process, the horizontal guide wheel mechanism is tightly attached to the side edge of the upper flange plate of the steel truss girder of the truss bridge in the height direction, and the outer side of the plane top plate is flush with the side edge of the upper flange plate of the steel truss girder; the span node piece is fixed to a truss of a bridge through a clamping head (3) which can be installed in a matched mode through the clamping head connecting piece, the plane, in contact with the edge of the upper chord upper flange plate of the steel truss girder, of the clamping head is arranged to be an inclined plane, and the rotary suspension arm can be taken down or placed in the working state.
2. The inspection device of claim 1, wherein said cartridges are symmetrically disposed on lateral sides of said cross-node member.
3. An inspection apparatus according to claim 1 or 2, wherein a lifting lug (26) is provided on the planar top plate of the straddle member.
4. An inspection device according to claim 3, wherein the rotating boom comprises a support cable (17) for providing vertical load bearing capacity and a lifting guide chain (18) engageable with the lifting lug to lift the straddle member.
5. An inspection device according to claim 1 or claim 2, wherein a plurality of evenly spaced threaded holes are provided in the chuck connector in the longitudinal bridge direction.
6. Inspection device according to claim 1 or 2, characterized in that the chuck comprises a first clamping part (31), a second clamping part (32) and a chuck body (33) for connecting the first and second clamping parts.
7. Inspection device according to claim 6, characterized in that a threaded hole (34) for mounting a top chuck bolt for providing a vertical fastening force is provided at the first connection portion, and a kidney-shaped unthreaded hole (35) for mounting a side chuck bolt for providing a horizontal fastening force is provided at the chuck body.
8. An inspection method for a truss bridge, which inspects the truss bridge using the inspection apparatus according to any one of claims 1 to 7, comprising the steps of:
the method comprises the following steps: placing the inspection vehicle on the truss bridge and driving to the node of the truss bridge;
step two: taking down the chuck and the fixing bolt thereof at the node to enable the rotary suspension arm to be in a horizontal working state, taking down the node spanning part through the lifting guide chain, and checking the node;
step three: a second step of reverse operation, namely fixedly mounting the cross-node piece on the truss bridge again;
step four: and driving the inspection vehicle to the next node, and repeating the second step and the third step until all the nodes are inspected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810325836.7A CN108643038B (en) | 2018-04-12 | 2018-04-12 | Inspection device and inspection method for truss bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810325836.7A CN108643038B (en) | 2018-04-12 | 2018-04-12 | Inspection device and inspection method for truss bridge |
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| Publication Number | Publication Date |
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| CN108643038A CN108643038A (en) | 2018-10-12 |
| CN108643038B true CN108643038B (en) | 2020-12-29 |
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| CN201810325836.7A Active CN108643038B (en) | 2018-04-12 | 2018-04-12 | Inspection device and inspection method for truss bridge |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3386785B2 (en) * | 2000-08-18 | 2003-03-17 | 株式会社ブリッジ・エンジニアリング | Scaffolding support device and scaffold device in bridge structure |
| CN201778284U (en) * | 2010-08-17 | 2011-03-30 | 中铁二院工程集团有限责任公司 | Inspection vehicle for bridge with steel truss |
| CN202227253U (en) * | 2011-08-30 | 2012-05-23 | 四川加力机电有限公司 | Auxiliary bridge and catamaran |
| CN105317005A (en) * | 2014-06-18 | 2016-02-10 | 中铁工程设计咨询集团有限公司 | Inspection trolley for bridge upper chord |
| CN104612046B (en) * | 2015-01-29 | 2016-08-24 | 武桥重工集团股份有限公司 | A kind of inspection car adding suspended-cable structure bridge for main push-towing rope |
| JP2017048541A (en) * | 2015-08-31 | 2017-03-09 | 西日本高速道路エンジニアリング九州株式会社 | Inspection device for elevated structure |
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