KR20020005788A - mobile and fixative bridge maintaining system - Google Patents

Abstract

PURPOSE: A mobile bridge examination traveler is provided to repair the front face of a bridge by being combined with a traveling rail, to economically use the traveling rail by making the traveling rail installed, removed and transferred easily, to be installed without any additional reinforcing facility by reducing the weight, and to examine many bridges at a time. CONSTITUTION: A mobile bridge examination traveler comprises a base structure having plates(29-1) for walking on the bottom face of a truss structured cantilever(29) installed on the side of a bridge structure; a traveling rail unit having a planar rear face and fixing a rack rail having rack gear pitches via a clamp; a power unit including a driver(21) generating power using such fuel as gasoline; a hanging unit connecting the traveling rail unit with an examination unit; and the examination unit consisting of two vertical trusses(33), a planar plate(32) fixed on the lower end of the vertical trusses and a truss reinforcing material supporting the vertical trusses. The bridge examination traveler easily examines and repairs a bridge.

Description

Mobile and fixative bridge maintaining system

The present invention relates to a mobile bridge inspection work system widely used from the safety diagnosis of the bridge to the inspection and maintenance work. In particular, the main inspection stand is a permanent bridge fixed type fixed to the piers and, at the same time, it is a mobile bridge inspection work vehicle configured to enable the maintenance of the whole bridge while releasing the fixed state by moving with the running rail when necessary.

The following is a comparison of the bridge management system equipment.

Various facilities and equipments in Korea are limited in their use for inspection and work, so there is a limit to their wide application to inspection and work as a whole.

First, the fixed inspection is generally installed for the intensive inspection of bridges, bridges, etc., but the access rate to the bridge is extremely low, so the bridge inspection effect is less than the investment cost.

Second, because the refraction and aerial work vehicles, which are used for inspection and simple repair work, are not fixed to the bridge, there is a problem in the sea, river, or valley, and the traffic control is inevitable.

Third, fixed scaffolds (aka aerial scaffolds), which are generally installed in the repair work of bridges, are not suitable for inspection, and even if the workability is recognized, safety accidents are frequent and pointed out as fatal drawbacks.

Fourthly, the multi-period permanent inspection is widely used for inspection and partial repair, but it has heavy weight because it has to install hydraulic system and huge truss structure in various axial directions for the passage between piers. Due to the high installation cost, it is difficult to apply general purpose to general bridge except some special bridge.

Fifth, mobile scaffolds (aka rack work vehicles) used for inspection and repair have the advantages of light weight and low cost, but except for some bridges (bridge type is a column type column type), it is difficult to pass through the pier. I receive it and move it.

The present invention allows the drive unit to pass through the pier in order to solve the drawback of the pier passing of the mobile scaffold (rack work car), the inspection platform (work table) can be installed separately for each span can move only in the span. I did it. That is, in each span, the inspection stand is installed as a permanent type, and the inspection of the bridge part is possible at any time, as well as free movement is possible when combined with the running rail, so that the front surface maintenance work on the bottom of the bridge is also possible. In addition, it is easy to install, dismantle, and relocate the running rail so that the running rail can be rented without any burden.The inspection platform is lightweight, so that the existing bridges with weak load durability can be installed without additional reinforcement installation work on the bridge itself. . Another effect is that the inspection platform is prefabricated so that it can be freely dismantled and stored if necessary, and the multiple bridges in the vicinity can be inspected with the minimum number of inspection stations.

1 is a front view showing the overall state of the bridge inspection work of the present invention installed on the steel bridge,

Figure 2 is a detailed side view showing the installation state for the bridge inspection work vehicle of the present invention,

Figure 3 is a front detail showing the installation state for the bridge inspection work vehicle of the present invention

Figure 4 is a side view showing the installation state for the bridge inspection work vehicle of the present invention,

5 is a front view showing the installation state for the concrete bridge of the present invention as a whole,

Figure 6 is a front view showing the left and right inspection stand in the installation state for the concrete bridge of the present invention,

Figure 7 is a front view showing the main inspection stand during the installation state for the concrete bridge of the present invention

Figure 8 is a side view showing the installation state for the concrete bridge of the present invention as a whole

9 is a front view showing the installation state using the I beam of the present invention,

Figure 10 is a side view showing the installation state using the I beam of the present invention

Figure 11 is a front view of the installation form to run down the main inspection of the present invention

Figure 12 is a side view of the installation form running down the main inspection of the present invention

<Explanation of symbols for the main parts of the drawings>

11: Steel bridge main checkpoint, 11-1: Concrete bridge check main road, 12: Rack rail plate, 13: Clamp, 14: Rack gear mountain, 15: Running rail, 15-1: Truss running rail, 21: driving car, 23-1: upper driven car, 23-2: lower driven car, 24-1: secondary upper driven car, 24-2: secondary lower driven car, 29: cantilever, 29-1: walking Plate, 31: 1st vertical connecting rod, 32: flat plate, 33: vertical truss, 37: loading work bench, 37-1: horizontal bar for placing working bench, 40: truss reinforcement, 50: left and right check table, 51: bracket Hanger, 54: Upper check table, 55: 2nd vertical connecting rod, 57: Lower check table, 58: Vertical work bench, 60: Drive car for vertical work bench, 61: Follower for vertical work bench, 62: Support roller for moment prevention, 63: Running rail for vertical workbench, 71: I beam fixing bracket, 72: I beam, 73: I beam drive car :, 74: I beam driven car :, 81: horizontal connecting rod, 91: bracket, 92: vertical direction Stationary hanger, 93: Brace, 94: Fastening clip

The present invention is to install a rail device such as a rail or I beam specially manufactured in the weld flange portion or plate portion of the bridge to eliminate the enormous weight and cost burden of the conventional permanent inspection car and vertical trusses, flat plate, After constructing the inspection stand with truss reinforcement, the driver car was attached to move by magnetic force, and these devices were all assembled to make disassembly and assembly possible.

In addition, in order to solve the safety problem of scaffolding, we overcome the disadvantages of scaffolding by adopting the same type of fixing method as the permanent fixation formula.

The present invention can be applied to any type of bridges, since the traveling device and the assembly system of the present invention can be installed in order not only steel bridge type bridges but also cantilever extends from side to side and can be difficult to access by general means. The aim is to provide this possible portable bridge inspection vehicle.

The present invention and the running rail portion installed in the longitudinal direction of the steel bridge, concrete bridge

In the state installed in the running rail portion, the power generating unit consisting of an engine, a battery, and other power generating device for moving the main inspection stand and

The main inspection stand (main work bench) made of a box type of vertical truss, flat plate, truss reinforcement and the like is coupled to the power generating unit and the horizontal connecting rod and towed by a driving vehicle, and is a main component of the mobile bridge inspection apparatus.

Specific embodiments of the present invention will be described with reference to the accompanying drawings.

There are various types of bridges, but most of them are steel bridges such as steel box type and plate girder type, and there are two types of concrete bridges with protruding cantilever parts.In addition, there are special bridges such as truss bridges, cable-stayed bridges, and suspension bridges. There is this. Here, the steel box type and concrete bridge will be described as a representative example to explain the installation and operation relationship. However, since the mobile inspection and repairing apparatus of the present invention and its installation method are almost similar, everything that can be implemented with a slight modification and installation of ancillary apparatus is within the scope of the present invention.

1 is a front view showing a state in which the apparatus of the present invention is installed on a steel bridge as a whole, Figure 2 is a detailed side view showing an installation state for the bridge inspection work of the present invention, Figure 3 is an installation for the bridge inspection work of the present invention Detailed front view showing the state, Figure 4 is a side view showing an overall installation state for the bridge inspection work vehicle of the present invention.

If the installation in the steel bridge in more detail

A base structure in which a cantilever 29 is installed on a side of a pier structure of a steel bridge in which a plurality of longitudinal and horizontal support bars are installed, and a plurality of walking plates 29-1 are provided on the bottom thereof;

The traveling rail part which fixed the rack rail 15 with the rack gear 14 to the welding flange or plate part of the steel bridge by the clamp 13,

A power unit including a drive car 21 for generating power by using fuel such as gasoline as an energy source;

Hanging unit for connecting the running rail unit 15 and the main inspection stand 11 while receiving the traction force from the drive car 21 and

Box-shaped rack consisting of two vertical trusses 33 attached to the top of the rack gear, a flat plate 32 placed on the inner bottom thereof, and a truss reinforcement 40 to mutually reinforce the two vertical trusses 33 The main inspection stand 11 is comprised.

The running rail portion of the present invention is a form in which many rack gear mounts 14 are attached to the plate portion 12, and may be temporarily installed using various prefabricated clamps 13, depending on the shape of the bridge, or EYE type if necessary. It is also possible to install the running rail by fixing the bracket. If the running pitch of the running rail is inevitably far, the truss-type running rail 15-1 may be used.

In the present invention, the drive car 21 is installed in the running rail portion to function to pull the main inspection stand 11, itself may be internally built in power such as an internal combustion engine or battery, or (feeding from a generator or other power supply) It may also be equipped with only a motor. Various control switches are installed on the surface of the driving vehicle 21 and the electric panel (aka control box) for controlling the driving vehicle to control the speed, direction, and various safety devices arbitrarily.

In the present invention, the hanging portion has a function to transfer the traction force from the driving vehicle 21 to the main inspection stand 11, the configuration of which is a horizontal connecting rod 81, the upper driven car 23-1, the lower driven car ( 23-2) and the first vertical connecting rod 31 between the upper and lower driven cars. The upper follower is attached to the running rail and the lower follower is attached to the main inspection stand. In particular, the upper follower is connected to the driving vehicle by a horizontal connecting rod and is towed by the driving vehicle.

In the present invention, the main inspection stand (working table) is a rack gear having two vertical trusses 33 attached to the top and a flat plate 32 placed on the inner bottom thereof, and a truss reinforcement for mutually supporting the two vertical trusses ( 40). The two vertical trusses are the basic frame of the main inspection frame and several truss types are applied for the 'maximum load weight of the smallest element'. In addition, a rack gear mount is attached to the top of the vertical truss, and its purpose is not only to install the inspection stand in the width direction at the bottom of the bridge or to facilitate the side movement, but also to install various optional equipment such as a separate vertical work platform 58 thereon. It also functions as a 'going rail' when seated and driven left and right. A separate flat plate 32 was installed on the floor to allow the worker to work stably. Deck plate, EX-METAL, and other perforated scaffold can be used as flat plate types. The truss reinforcement 40 serves to mutually support and reinforce the two vertical trusses 33. Depending on the location of the running rails, the horizontal bar 37-1 for mounting the loading platform and the loading platform 37 may be additionally installed to be used for the extension or disassembly of the running rail, or other work.

5 to 8 show another embodiment showing a front view, a side view showing an installation state for the concrete bridge of the present invention.

Although operated on the same principle as the above-mentioned steel bridge, concrete bridges have a special concept of 'left and right check table 50' because the cantilever portion is particularly protruded. If the left and right checkpoints are not installed separately, the main checkpoint should be large to meet the original purpose of the main checkpoint (11-1), and when the main checkpoint is placed on the cantilever attached to the piers The protruding length may be increased, and the position of division of the weight of the main checkpoint may be inappropriate.

First, the running rail may be anchored to the main school to attach the bracket of EYE TYPE, or to install the running rail without the installation of such an auxiliary device, the bracket hanger 51 may be seated on a firewall or the like to hang the running rail.

The left and right checkpoints are installed from the running rail to the lower side, which has a complex function. The functions of the left and right checkpoints must first be able to check the cantilever. The installation cost of main checkpoint 11-1 should be minimized. In particular, the left and right checkpoints are separated from the main checkpoint when they meet the pier, and each of them runs on a running rail (15-1) of the outer line and must pass the pier independently. In this case, it is easy to disassemble and assemble with the main checkpoint. It must be safe. Therefore, in order to prevent the rotation moment, the center of gravity of the upper check table 54, the lower check table 57 and the vertical work table 58 is placed in the direction directly below the running rail. Therefore, in the worst case, even if the worker moves to the end, the shaking is very small due to the weight of the check table. In addition, the lower check stand 57 of the left and right check stands was supported by four points from the upper check stand 54 without hanging directly from the running rail, thereby reducing the moment change when the lower check stand was separated from the main check stand. In addition, the moment prevention rotation roller 62, the balance weight, and supported the moment prevention.

Looking specifically at the structure, after the bracket hanger 51 is extended to install the running rail, the drive rail 21, the upper driven car 23-1, the lower driven car 23-2 ), The upper inspection stand 54 is installed together with the primary vertical connecting rod 31 and the like. Subsequently, the lower inspection table 57 is installed by the secondary upper driven vehicle 24-1, the secondary vertical connecting rod 55, and the secondary lower driven vehicle 24-2. The vertical work bench 58 was built between the upper check bench 54 and the lower check bench 57. Vertical workbench is installed on the lower side of the vertical workbench driving car 60 and can be moved left and right using the vertical workbench running rail 63 and the driven car 61, and the vertical workbench is capable of moving the work plate up and down Access to any location on the lower part of the bridge was made possible.

As another embodiment of the present invention, as shown in FIGS. 9 and 10, the driving rail part and the driving part are partially changed, and the driving rail uses the I beam, and the driving car and the upper driven car are adapted to the I beam.

In the case of steel bridges, after the bracket 71 is welded to the welded flange or plate, the running rail part attached to the I beam is attached thereto;

Instead of the drive car 21 in which the pinion gear is built (fitting the rack gear), the drive car 73 and the driven car 74 of the rotary roller type suitable for the I beam are provided.

In the case of the concrete bridge, the I beam and the driving part corresponding thereto are changed as the running rails in the same form as the above-mentioned steel bridge. Install it. Other principles are the same as the above.

As another embodiment of the present invention, as shown in Figs. 11 and 12, the main inspection path is directly fixed to the main bridge without being placed on the cantilever 29. After attaching the bracket 91 of the EYE TYPE to the bridge, the fixed hanger 92 in the vertical direction is appropriately arranged according to the width of the main inspection path, and the main inspection path is put down. It is also supplemented with fixing braces 93 to prevent horizontal shaking.

In summary, the operation principle according to the overall structural features, the inspection stand is fixed to the pier at each interval in the form of fixed and fixed, and at the same time release the fixed state to move the maintenance of the entire bridge is possible.

The drive car 21 is installed on the running rail 15 with the rack gear, and the running rail is attached to the bridge by the clamp 13 or the bracket hanger 51. Finally, the main inspection stand 11 is normally pier side. It is settled in the cantilever 29 attached to it, and when it is in need, it is combined with the running rail by the hanging part, and when the work of one span is finished, the main inspection path is separated again, and the driving part continues to travel along the running rail and passes through the piers again. Continue with the inspection and repair work, re-combine with the main inspection of the next span.

The effects of the mobile bridge inspection work vehicle according to the structure of the present invention are as follows.

In the case of the permanent inspection car, the difficulty of passage of the bridge is found by the huge truss structure using the hydraulic system, and the solution of about ten tons is installed in the cantilever, the weakest part of the bridge, despite the superiority of the principle. Existing bridges that require maintenance cannot be installed and are currently being installed only on new bridges. In addition, even long bridges such as cable-stayed bridges, the permanent type inspection car with a heavy weight is not good for maintaining balance. In addition, due to its own weight, there is a limit to the work space and loading load required for the repair work of the bridge, and therefore, there is an economic problem of overlapping investment, which requires installation of separate equipment or conventional fixed scaffolding during the repair work.

On the other hand, the present invention is a system that can expect the integrated effect that does not require separate inspection and work equipment. In addition, the time and space constraints on bridge maintenance have been eliminated. In other words, since the mobile inspection platform exists every interval, quick inspection is possible, but when combined with a running rail in case of emergency, it is possible to carry out a comprehensive and comprehensive emergency inspection simultaneously. And because the weight of the inspection platform is light, it can be installed even on the existing bridge without the need for additional reinforcement. In addition, safety accidents that can occur during the installation and dismantling of fixed scaffolds (air scaffolds), which are commonly installed during maintenance work, can be reduced.

In terms of economics, the inspection and repair of the bridges are not separate devices, but integrated operation, thereby avoiding redundant investment in bridge management. And since it does not need to be a hydraulic system or a huge truss structure in comparison with the existing permanent type, it can be operated at low cost.

In order to maximize the effect of such low-cost equipment, firstly, the I-beam running rail may be selectively used. Rack rails with rack gears have advantages in that they can be easily disassembled and assembled, but the manufacturing cost is high, so the longer the bridge, the higher the running rail price, and some of the advantages in price competitiveness can be offset. If the user wants to relocate and use the running rail, or the driving rail is unavoidably inclined, such as an arch bridge or a ramp bridge, the I beam can be fixed and used as the running rail. Second, in place of the cantilever for placing the main inspection, a simple hanging method may be used to run the main inspection off the main bridge.

Claims (10)

A base structure in which a truss cantilever 29 is installed on the side of the pier structure of the steel bridge, and a plurality of walking plates 29-1 are installed on the bottom thereof; The rear surface of the planar structure 12 has one surface in contact with a welded flange or plate portion of a steel bridge, and on the opposite side, a rack rail 15 having a plurality of rack gear mounts 14 formed thereon is fixed by the clamp 13. Rail section, A power unit including a drive car 21 for generating power by using fuel such as gasoline as an energy source; Hanging unit for connecting the running rail unit and the inspection stand while receiving the traction force from the drive car, The rack consists of two vertical trusses 33 attached to the top, a flat plate 32 placed on the inner bottom thereof, and a truss reinforcement 40 for mutually reinforcing and supporting the two vertical trusses. Mobile bridge inspection work vehicle. The method of claim 1, The running rail portion is formed by attaching a plurality of rack gear mounts 14 to the plate portion 12, and according to the shape of the bridge, any of the prefabricated clamp 13, EYE bracket or truss-type running rail 15-1. Choose one to install, The rack gear is a mobile bridge inspection vehicle for bridges, characterized in that it is manufactured and installed in either flat iron wave processing or shackles. The method of claim 1, The driving car 21 is installed on the running rail part and is operated by a power of an internal combustion engine or a battery so as to tow the main inspection stand 11, and the driving car 21 and an electric panel (aka control box) that controls the driving car. Mobile bridge inspection vehicle of a bridge, characterized in that the control switch installed on the surface to control the speed, direction, and various safety devices arbitrarily. The method of claim 1, The hanging part consists of a horizontal connecting rod 81, an upper follower 23-1, a lower follower 23-2, and a first vertical connecting rod 31 between the upper and lower follower cars. On the running rail, the lower driven car is attached to the main inspection stand, respectively, the upper driven car is connected to the driving car by the horizontal connecting rod 81, the mobile bridge inspection work of the bridge, characterized in that to be towed by the driving car. The method of claim 1, The main inspection stand (work table) includes two vertical trusses 33 having a rack gear attached to the top, a flat plate 32 placed at the bottom of the inner side thereof, and a truss reinforcement 40 which mutually reinforces the two vertical trusses. Is composed, The rack-mounted gear mount is attached to the top of the vertical truss, the flat plate 32 is a mobile bridge inspection work of the bridge, characterized in that any one of the deck plate, EX-METAL, perforated scaffolding is applicable. On concrete bridges with long exposed cantilevers from side to side After the bracket hanger 51 extends downward to install the travel rails, the drive rails 21, the upper driven cars 23-1, the lower driven cars 23-2, and the primary vertical connecting rod 31 are mounted on the traveling rails. And the upper inspection stand (54) The lower inspection table 57 is installed by the secondary upper driven vehicle 24-1, the secondary vertical connecting rod 55, and the secondary lower driven vehicle 24-2. The vertical work table 58 is built between the upper check table 54 and the lower check table 57, but the vertical work table has a drive rail 60 for the vertical work table installed thereon, and a running rail 63 for the vertical work table. And can be moved left and right using the driven car 61, the vertical work platform is a mobile bridge inspection work of the bridge configured to enable the vertical movement of the work plate. The method of claim 6, In order to prevent the rotation moment of the left and right checkpoints, the center of gravity of the upper 54, lower checker 57 and the vertical workbench 58 is placed under the running rail, and the lower checkpoints of the left and right checkpoints ( 57) was supported by four points from the upper inspection stand 54 without hanging directly from the running rails. In addition, a mobile bridge inspection work of the bridge, characterized in that the moment prevention rotation roller 62, the balance weight to support the moment prevention. The method of claim 1, The cantilever 29 of truss structure is installed on the side of the pier structure of the steel bridge, and it is composed of a base structure in which a plurality of walking plates 29-1 are installed on the bottom thereof. Mobile bridge inspection vehicle of the bridge, characterized in that can also be connected to each other by various steel on the upper surface. The method of claim 1, In the case of steel bridge, after welding the bracket 71 to the welding flange or plate, I beam is attached thereto, and the driving car 73 and the driven car 74 of the rotary roller type suitable for the I beam are installed. In the case of a concrete bridge, the bridge is a mobile bridge inspection work of the bridge, characterized in that to install a driving rail suitable for the I beam and the same as the running rail, but using a bracket hanger (51) or anchoring. In the inspection platform for maintenance of the undercarriage of the bridge, After attaching the main point follower to the bridge, the bracket 91 of the EYE TYPE is attached to the bridge, and then the fixed hanger 92 in the vertical direction is appropriately placed in accordance with the width of the main follower to suspend the main follower downwardly, and then the horizontal shaking Mobile bridge inspection work of the type supplemented with a fixing brace (93) to prevent the.