JP6225011B2 - Bridge girder replacement vehicle and bridge girder replacement method - Google Patents

Bridge girder replacement vehicle and bridge girder replacement method Download PDF

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JP6225011B2
JP6225011B2 JP2013254337A JP2013254337A JP6225011B2 JP 6225011 B2 JP6225011 B2 JP 6225011B2 JP 2013254337 A JP2013254337 A JP 2013254337A JP 2013254337 A JP2013254337 A JP 2013254337A JP 6225011 B2 JP6225011 B2 JP 6225011B2
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girder
vehicle
replacement
bridge
bridge girder
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JP2015113576A (en
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忠信 山田
忠信 山田
弘文 中村
弘文 中村
浩 小島
浩 小島
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日本車輌製造株式会社
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Description

  The present invention relates to a bridge girder replacement vehicle and a bridge girder replacement method in which an existing girder of a bridge girder is removed from a bridge and a new girder is installed (so-called “replacement”), and in particular, an urban expressway and the like The present invention relates to a bridge girder replacement vehicle and a bridge girder replacement method capable of replacing an existing girder with respect to a bridge having a large restriction in the vertical space.

  In bridges such as road bridges and railway bridges, replacement of old girders with new girders has been carried out. Conventionally, such bridge girder replacement methods include, for example, a method using a truck crane and a vent (hereinafter referred to as “truck crane vent method”) or a method using a large self-propelled carrier.

  The truck crane vent method is the most common method, and is described in many documents such as Patent Document 1 below. In the truck crane vent method, as shown in FIG. 14, the vent B1 is first assembled below the bridge KS, and the existing girder J1 is lifted and removed by the truck crane TC. Next, the new girder P1 carried by the truck or the like is lifted by the truck crane TC, and the new girder P1 is erected in the replacement space KK. Then, after the newly installed girder P1 is coupled to the adjacent bridge girders I1 and I2, the vent B1 is disassembled.

  The method using the large self-propelled carrier OC is a method proposed by the present applicant. For example, as shown in FIG. 15, the large self-propelled carrier OC and the unit jack UJ are arranged below the bridge KT. Is done. Specifically, the large existing girder J2 is collectively transported by the large self-propelled carrier OC while the unit jack UJ supports the existing girder J2. The removed large existing girder J2 is demolished in the work yard. A large new girder P2 is assembled in the work yard. Then, while supporting the new girder P2 with the unit jack UJ, the large new girder P2 is collectively transported by the large self-propelled carrier OC, and the unit jack UJ is lowered to install the new girder P2 in the replacement space KK. It has become.

JP 2004-190266 A

  However, urban highways, etc., among the bridges are provided with three-dimensional roads, and there are significant restrictions on the vertical space. For this reason, the conventional replacement method described above has the following problems. First, in the truck crane vent method, the truck crane TC is arranged below the bridge KS, and the existing girder J1 and the new girder P1 are lifted and lowered, so that a wide space is required above and below the bridge KS. Furthermore, since the vent B1 is assembled and disassembled, safety considerations are also necessary. In addition, when the lower side of the bridge KS is a service road, the traffic regulation is greatly affected by the arrangement of the truck crane TC. Therefore, it is difficult for the truck crane vent method to be used for an urban highway or the like while safely and restraining the vertical space to be used.

  On the other hand, in the method using the large self-propelled carrier, the large existing girder J2 is disassembled in the work yard and the large new girder P2 is assembled in the work yard, so that a very wide work yard must be secured. Furthermore, since a space for allowing the large self-propelled carrier OC to enter is required below the bridge KT, bridges that can be replaced are limited. In addition, when the lower side of the bridge KT is a service road, the influence of traffic regulation is large due to the arrangement of the large self-propelled carrier OC. Therefore, in the method of using a large self-propelled carrier on an urban highway or the like, it is difficult to perform replacement with a narrow work yard and a reduced vertical space to be used.

  Therefore, the present invention has been made to solve the above-described problems, and it is possible to safely and while suppressing the vertical space to be used for a bridge having a large vertical space restriction such as an urban expressway. It is an object of the present invention to provide a bridge girder replacement vehicle and a bridge girder replacement method that can be replaced in a narrow work yard.

  A bridge girder replacement vehicle according to the present invention includes a pair of vehicle parts arranged longer than the longitudinal dimension of an existing girder to be replaced, and a suspension part connecting the pair of vehicle parts. The suspension unit includes a crane device that lifts the existing girder, and each of the vehicle units includes a vehicle body on which a power source is mounted, a plurality of traveling devices for traveling on a bridge, and the existing girder. And a linear movement device that travels over the temporary bridge girder.

  The bridge girder replacement method according to the present invention includes a vehicle arrangement step in which the above-described bridge girder replacement vehicle travels and each vehicle part is arranged in a state of being separated longer than the longitudinal dimension of the existing girder, and the crane device. An existing girder lifting step for lifting the existing girder, a feeding step for sending and suspending a temporary bridge girder to a replacement space in which the existing girder is lifted by the feeding device, and a temporary bridge girder that is suspended by the linear moving device. A linear movement process that moves linearly over the replacement space, and an existing girder suspension process that travels to a work yard adjacent to a bridge by the traveling device and suspends the existing girder in the work yard by the crane device; A new girder lifting process in which a new girder is lifted in a work yard by the crane device, and one end of the temporary bridge girder by the traveling device. A new girder arrangement step of traveling, linearly moving on the temporary bridge girder by the linear movement device and arranging the new girder above the replacement space, and sending the temporary bridge girder by the sending device It comprises a temporary bridge girder removal step for removing from the space, and a new girder installation step for hanging the new girder by the crane device and installing it in the replacement space.

  According to the bridge girder replacement vehicle and the bridge girder replacement method according to the present invention, when removing the existing girder, first, each vehicle part is arranged in a state of being separated longer than the longitudinal dimension of the existing girder. Next, the existing girder is lifted by the crane device. Subsequently, the temporary bridge girder is sent out to the replacement space where the existing girder is lifted by the sending device. Then, the vehicle moves linearly on the temporary bridge girder spanned by the linear moving device and crosses the replacement space. Thereafter, the vehicle travels to the work yard by the traveling device, and the existing girder is hung from the work yard by the crane device. Thus, the bridge girder replacement vehicle only runs on the bridge, and the existing girder can be removed without using the space above and below the bridge outside the work yard.

  And when installing a new girder, first, a new girder is lifted in a work yard by a crane apparatus. Next, it travels to one end part of the temporary bridge girder by the traveling device, and linearly moves on the temporary bridge girder by the linear movement device, and arranges the newly installed girder above the replacement space. Subsequently, the temporary bridge girder is sent out by the sending device and removed from the replacement space. After that, the new girder is suspended by a crane device and installed in the replacement space. Thus, the bridge girder replacement vehicle only runs on the bridge, and a new girder can be installed without using the space above and below the bridge outside the work yard.

  As described above, it is not necessary to arrange a truck crane or a large self-propelled carrier below the bridge, and the bridge girder replacement vehicle can be replaced by self-propelling on the bridge. Therefore, the scope of traffic regulation is narrow, and the influence of traffic regulation performed under the conventional bridge can be reduced. Also, it is safe because there is no need to assemble and disassemble the vent below the bridge. Further, unlike a method using a large self-propelled carrier, a wide work yard for disassembling an existing girder and assembling a new girder is not necessary, and a relatively narrow work yard may be used. As a result, it is possible to perform the replacement safely and in a narrow work yard while suppressing the vertical space to be used.

  In the bridge girder replacement method according to the present invention, two bridge girder replacement vehicles described above are prepared as a first bridge girder replacement vehicle and a second bridge girder replacement vehicle, and the first bridge girder replacement vehicle is run to A vehicle arrangement step of arranging each vehicle portion in a state of being separated from the longitudinal dimension of the existing girder by a distance; an existing girder lifting step of lifting the existing girder by a crane device of the first bridge girder replacement vehicle; A feeding step of sending and suspending the temporary bridge girder to the replacement space in which the existing girder is lifted by the feeding device of the bridge girder replacement vehicle; and the temporary bridge girder of the temporary bridge girder that has been transferred by the linear movement device of the first bridge girder replacement vehicle The vehicle travels linearly over the relocation space and travels to the first work yard adjacent to the bridge by the travel device of the first bridge girder replacement vehicle, and the crane device moves the existing girder first. Product An existing girder hanging process for hanging at the yard, a new girder lifting process for lifting the new girder at the second work yard adjacent to the bridge by the crane device of the second bridge girder replacement vehicle, and travel of the second bridge girder replacement vehicle A new girder arrangement step of traveling to one end of the temporary bridge girder by a device, linearly moving on the temporary bridge girder by the linear movement device, and arranging the new girder above the replacement space; and the second bridge A temporary bridge girder removal process in which the temporary bridge girder is sent out by the girder replacement vehicle delivery device and removed from the replacement space, and the new girder is suspended by the crane device of the second bridge girder replacement vehicle and installed in the replacement space. And a new girder installation process.

  According to the above-described bridge girder replacement method according to the present invention, two bridge girder replacement vehicles can be used in addition to the effect of being able to perform replacement safely and in a narrow work yard while suppressing the vertical space to be used. By using the two work yards, the existing girder can be removed and the new girder can be installed almost simultaneously. Therefore, the construction period can be shortened.

In the bridge girder replacement vehicle according to the present invention, each traveling device includes an axle that supports a plurality of wheels, and an arm member that is attached to the vehicle body so as to be able to turn the axle, and is independent of the vehicle body. It should be possible to steer.
In this case, since each wheel can be steered independently, it is possible not only to turn but also to perform complicated traveling such as skewing and traversing. For this reason, even if it is a very narrow work yard adjacent to a bridge, it can move reliably. That is, the work yard to be installed can be narrowed.

  According to the bridge girder replacement vehicle and the bridge girder replacement method of the present invention, it is possible to safely and narrowly work in a narrow work yard while suppressing the vertical space to be used for a bridge having a large vertical space restriction such as an urban expressway. Can be replaced.

It is the perspective view which showed typically the bridge girder replacement vehicle of this embodiment. It is the side view which showed the vehicle part of FIG. It is sectional drawing along the XX line of FIG. It is the figure which showed the state which the 1st bridge girder replacement vehicle waits in the 1st work yard, and the 2nd bridge girder transfer vehicle waits in the 2nd work yard. It is the figure which showed the state which the crane apparatus of the 1st bridge girder replacement vehicle is lifting the existing girder. It is the figure which showed the state which the sending jack of the 1st bridge girder replacement vehicle sent out the temporary bridge girder. It is the figure which showed the state which the crawler of the 1st bridge girder replacement vehicle moved linearly on the temporary bridge girder. It is the figure which showed the state which the 1st bridge girder replacement vehicle drive | worked to the 1st work yard. It is the figure which showed the state which the crane apparatus of the 1st bridge girder replacement vehicle suspended the existing girder in the 1st work yard. It is the figure which showed the state which the crane apparatus of the 2nd bridge girder replacement vehicle lifted the newly installed girder in the 2nd work yard. It is the figure which showed the state which the crawler of the 2nd bridge girder replacement vehicle moved linearly on the temporary bridge girder, and has arranged the newly installed girder above the replacement space. It is the figure which showed the state which the sending jack of the 2nd bridge girder replacement vehicle sent out the temporary bridge girder. It is the figure which showed the state after the crane apparatus of a 2nd bridge girder replacement vehicle suspended the newly installed girder, and installed in the replacement space. It is a schematic diagram for demonstrating a truck crane vent construction method as the conventional bridge girder replacement method. It is a schematic diagram for demonstrating the method of using a large sized self-propelled carrier as a conventional bridge girder replacement method.

  DESCRIPTION OF EMBODIMENTS Embodiments of a bridge girder replacement vehicle and a bridge girder replacement method according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view schematically showing a bridge girder replacement vehicle 1 of the present embodiment. The bridge girder replacement vehicle 1 is a special vehicle in which an old girder is removed and a new girder is installed (so-called “replacement” is performed), and as shown in FIG. 1, it is unitized at both ends in the longitudinal direction. Provided with a pair of vehicle parts 2A, 2B, and a suspension part 3 for connecting the upper sides of the vehicle parts 2A, 2B. Since the configuration of the vehicle unit 2A and the configuration of the vehicle unit 2B are the same, the configuration of the vehicle unit 2A will be described below as a representative.

  FIG. 2 is a side view showing the vehicle portion 2A of FIG. FIG. 3 is a cross-sectional view taken along line XX in FIG. As shown in FIGS. 2 and 3, the vehicle portion 2 </ b> A includes a vehicle body 10, a traveling device 20, a delivery jack 30, and a crawler 40. The suspension unit 3 includes a roof frame 50 and a crane device 60.

  The vehicle body 10 mainly includes a frame 11, a cradle 12, a driver's seat 13, and a power source 14. A traveling device 20 is provided below the underframe 11, and a power source 14 is mounted above the underframe 11. The cradle 12 supports the suspension portion 3 and surrounds the power source 14 on the upper side of the frame 11. The driver's seat 13 is provided with an accelerator pedal, a brake pedal, a steering handle, levers and buttons for an operator to operate each device, and the like. The power source 14 is a motor generator for driving the traveling device 20, a hydraulic unit for driving the delivery jack 30 and the crane device 60, a diesel engine for driving the crawler 40, the traveling device 20, and the crane device 60. is there. The configuration of the power source 14 is not limited to that described above, and can be changed as appropriate.

  The traveling device 20 includes a plurality of wheels 21, an axle 22 that rotatably supports the pair of wheels 21, an axle case 22a that covers the axle 22, an arm member 23 that is coupled to the axle case 22a, and an arm member. And a rotating plate 24 connected to the upper end portion of 23. Thus, the arm member 23 is attached to the vehicle body 10 so that the axle 22 can turn. In this traveling device 20, twin wheels 21 are provided at both ends in the vehicle width direction, and four wheels 21 are arranged in the vehicle longitudinal direction. Each axle 22 is connected to a travel motor (not shown), and rotates together with the wheels 21 by the rotation of the travel motor. That is, when the traveling motor rotates, the wheel 21 and the axle 22 rotate, and the bridge girder replacement vehicle 1 can travel on the bridge.

  Each arm member 23 extends in the vertical direction between each wheel 21 and the vehicle body 10, and the wheel 21 can be steered as the rotating plate 24 rotates. Each arm member 23 is schematically shown as one member in FIGS. 2 and 3, but is composed of a swing arm and a suspension bracket. Each rotating plate 24 is rotatably attached to the vehicle body 10 via a bearing. Each rotating plate 24 is connected to a steering motor (not shown), and can be rotated around a vertical axis by the rotation of each steering motor. Thus, when each steering motor rotates, the rotating plate 24 and the arm member 23 rotate around the vertical axis, and each wheel 21 is steered. That is, the steering motor can steer only the corresponding wheel, and each wheel 21 can be steered independently. Thereby, the bridge girder replacement vehicle 1 can perform not only turning but also complicated traveling such as slanting or traversing.

  The delivery jack 30 delivers the temporary bridge girder 4 (see FIG. 4) in the longitudinal direction of the vehicle. Here, as will be described later, the temporary bridge girder 4 is a girder member temporarily bridged over the replacement space KK (see FIGS. 6 to 11), and is longer than the longitudinal dimension of the existing girder M1, and is larger than the existing girder M1. It is shorter than the dimension in the width direction. As shown in FIG. 3, the temporary bridge girder 4 includes a channel portion 4 a having a U-shaped cross section and a bottom plate portion 4 b having a flat plate shape. The shape of the temporary bridge girder 4 can be changed as appropriate, and may be a girder member whose cross section is H-shaped or hat-shaped.

  The delivery jacks 30 are respectively attached to the lower sides of both ends of the underframe 11 in the vehicle longitudinal direction, and are arranged at the center in the vehicle width direction. Each delivery jack 30 has a well-known configuration having a hydraulic cylinder or the like, and can feed little by little in the longitudinal direction of the vehicle while holding the temporary bridge girder 4. Each of these feeding jacks 30 corresponds to the “feeding device” of the present invention, but the configuration of the “feeding device” can be changed as appropriate. For example, even if the rotating roller mechanism feeds the temporary bridge girder 4 while the rollers rotate. good.

  As shown in FIGS. 2 and 3, the crawler 40 linearly moves on the upper surface of the channel portion 4 a of the temporary bridge girder 4. The crawler 40 is attached to the lower side of the center portion of the underframe 11 in the vehicle longitudinal direction, and is disposed at the center portion in the vehicle width direction. The crawler 40 has a well-known configuration including a belt-like shoe, a driving wheel, a rolling wheel, and the like, and can move forward or backward little by little as the driving wheel rotates by driving a diesel engine. The crawler 40 corresponds to the “linear movement device” of the present invention, but the configuration of the “linear movement device” can be changed as appropriate. For example, the crawler 40 is a mechanism that slides while gripping the channel portion 4 a of the temporary bridge girder 4. Also good.

  As shown in FIG. 1, the roof frame 50 extends in the longitudinal direction of the vehicle, one end of the roof frame 50 is supported by the cradle 12 of one vehicle portion 2A, and the other end of the roof frame 50 is the other. It is supported by the cradle 12 of the vehicle part 2B. Thereby, one vehicle part 2A and the other vehicle part 2B are separated longer than the longitudinal dimension of the existing girder M1 described later (see FIG. 5). Two crane devices 60 are mounted on the central portion of the roof frame 50 in the longitudinal direction.

  Each crane device 60 lifts or lowers an existing girder, and includes a crane body 61 supported by a roof frame 50, winches 62 provided at both ends of the crane body 61 in the vehicle width direction, and winches. Each wire 63 is wound around 62 and each hook 64 is attached to the tip of these wires 63. A total of four hooks 64 suspend hanging brackets (not shown) provided on existing girders.

  In these crane devices 60, when each winch 62 is rotated forward, each wire 63 is wound around the winch 62, and an existing girder suspended from each hook 64 can be lifted. On the other hand, when each winch 62 is rotated in the reverse direction, each wire 63 is wound around the winch 62 and the existing girders suspended from the respective hooks 64 can be suspended. In addition, the crane apparatus 60 is not limited to an above-described structure, It can change suitably, For example, the structure which has an expansion-contraction boom may be sufficient.

  By the way, in the conventional bridge girder replacement method, as described in the problem to be solved by the invention, there is a problem that it is not possible to perform replacement safely and in a narrow work yard while suppressing the vertical space to be used. Therefore, in the bridge girder replacement method of the present embodiment, replacement is performed using the bridge girder replacement vehicle 1 described above in order to solve the above-described problems. Hereinafter, the bridge girder replacement method of this embodiment will be described. As shown in FIG. 4, in the bridge KR that is to be replaced, bridge girders H1, H2, H3, H4, H5, H6, H7, H8, and H9 are installed above the piers. In the present embodiment, a case where the bridge girder H5 is replaced with a new bridge girder will be described. Hereinafter, “bridge girder H5” will be referred to as “existing girder M1”.

  In the bridge girder replacement method of the present embodiment, two bridge girder replacement vehicles 1 described above are prepared. For this reason, these bridge girder replacement vehicles 1 will be referred to as “first bridge girder replacement vehicle 1A” and “second bridge girder replacement vehicle 1B”. In this bridge KR, the first work yard S1 is provided adjacent to the bridge width direction of the bridge beam H6 and the bridge beam H8, and the second work yard S2 is adjacent to the bridge beam direction of the bridge beam H2 and the bridge beam H4. Is provided. The first work yard S1 and the second work yard S2 are work gantry for the first bridge girder replacement vehicle 1A and the second bridge girder replacement vehicle 1B to lift or suspend the existing girder, respectively, and the scope of traffic regulation. Is made as narrow as possible.

  First, as shown in FIG. 4, the first bridge girder replacement vehicle 1A waits in the first work yard S1, and the second bridge girder replacement vehicle 1B waits in the second work yard S2. At this time, the temporary bridge girder 4 is carried by a truck or the like on the bridge girder H4, H3, H2 adjacent to the existing girder M1. Next, the first bridge girder replacement vehicle 1A traverses toward the bridge girders H6, H7, and H8 by the traveling device 20, and then bridges the existing girder M1 across the vehicle parts 2A and 2B as shown in FIG. Drive on KR. That is, the vehicle parts 2A and 2B are arranged in a state of being separated longer than the longitudinal dimension of the existing girder M1 (vehicle arrangement process), and the existing girder M1 is lifted by each crane device 60 (existing girder lifting process).

  Next, as shown in FIG. 6, the temporary bridge girder 4 is sent out to the replacement space KK in which the existing girder M <b> 1 is lifted by the feeding jacks 30 of the vehicle portion 2 </ b> A. Thereby, the temporary bridge girder 4 is bridged between the bridge girder H4 and the bridge girder H6 below the existing girder M1 that has been lifted (feeding process). Subsequently, as shown in FIG. 7, the first bridge girder replacement vehicle 1 </ b> A moves linearly on the temporary bridge girder 4 that is bridged by the crawler 40 of the vehicle portion 2 </ b> A and crosses the replacement space KK (straight line). Moving process).

  Then, the first bridge girder replacement vehicle 1A travels to a position adjacent to the first work yard S1 in the bridge width direction by the travel device 20, and traverses to the first work yard S1 as shown in FIG. Thereafter, as shown in FIG. 9, the existing girders M <b> 1 are suspended in the first work yard S <b> 1 by the crane devices 60 (existing girder hanging process). Thus, the first bridge girder replacement vehicle 1A only travels on the bridge KR, and the existing girder M1 can be removed without using the space above and below the bridge KR other than the first work yard S1.

  Further, as shown in FIG. 10, while the existing girders M1 are being removed in the first work yard S1, the second bridge girder replacement vehicle 1B uses the crane devices 60 to install the new girders N1 in the second work yard S2. Lifting (new girder lifting process). Next, the second bridge girder replacement vehicle 1B travels to the bridge girders H2, H3, H4 by the traveling device 20, and then travels to one end 4c of the temporary bridge girder 4 (the left end of the temporary bridge girder 4 in FIG. 10). . Then, as shown in FIG. 11, the second bridge girder replacement vehicle 1B is linearly moved over the temporary bridge girder 4 that is bridged by the crawler 40 of the vehicle portion 2B, and the new girder is placed above the replacement space KK. N1 is arranged (new girder arrangement process).

  Subsequently, as shown in FIG. 12, the temporary bridge girder 4 is sent out toward the second work yard S2 by the delivery jack 30 of the vehicle portion 2A, and the temporary bridge girder 4 is removed from the replacement space KK (temporary bridge girder removal step). ). Thereby, the new girder N1 is suspended by each crane device 60, and the new girder N1 is installed in the replacement space KK, as shown in FIG. 13, and the replacement work is completed. Thus, the second bridge girder replacement vehicle 1B only travels on the bridge KR, and the new girder N1 can be installed without using the space above and below the bridge KR other than the second work yard S2.

The effect of this embodiment is demonstrated.
According to the present embodiment, there is no need to dispose the truck crane TC (see FIG. 14) or the large self-propelled carrier OC (see FIG. 15) below the bridge KR, and the first bridge girder replacement vehicle 1A and the second The bridge girder replacement vehicle 1B can perform the replacement by traveling on the bridge KR. That is, unlike the conventional replacement method, it is only necessary to secure a space for the first bridge girder replacement vehicle 1A and the second bridge girder replacement vehicle 1B to travel on the bridge KR, and the space above and below the bridge KR is greatly used. There is nothing. Therefore, the range of traffic regulation is narrow, and the traffic regulation performed under the conventional bridge KR can be reduced. Further, it is safe because there is no need to assemble and disassemble the vent under the bridge KR. Furthermore, unlike the method using a large self-propelled carrier, there is no need for a wide work yard for disassembling existing girders and assembling new girders, and the relatively narrow first work yard S1 and second work yard S2 are used. Good.

  As described above, since the traveling road itself is used, even a bridge with a large restriction in the vertical space such as an urban expressway can be safely and laid in a narrow work yard while suppressing the vertical space to be used. Can be replaced. Thus, the bridge girder replacement method of the present embodiment is a replacement method that can respond widely to replacement demand, and is particularly effective when the bridge is seriously deteriorated and cannot be dealt with by repairing the existing girder.

  Further, according to the present embodiment, two bridge girder replacement vehicles (first bridge girder replacement vehicle 1A and second bridge girder replacement vehicle 1B) and two work yards (first work yard S1 and second work yard S2). ) Can be used to remove the existing girder M1 and construct the new girder N1 almost simultaneously. Therefore, the construction period can be shortened. Furthermore, since the first bridge girder replacement vehicle 1A and the second bridge girder replacement vehicle 1B can perform complicated traveling such as oblique running or traversing by the traveling device 20, the first work yard S1 and the second work yard. Even a narrow work yard such as S2 can be moved reliably. That is, the first bridge girder replacement vehicle 1A and the second bridge girder replacement vehicle 1B can travel (transverse) so as to turn about 90 degrees, so that the work yard to be installed can be narrowed.

  Here, the bridge girder replacement vehicle 1 of the present embodiment is a combination of a traveling device 20 used in a carrier in the transportation equipment field, a delivery jack 30 used in the bridge field, a crawler 40 and a crane device 60 used in the construction equipment field. This is a special vehicle for bridge girder replacement. The traveling device 20, the delivery jack 30, the crawler 40, and the crane device 60 can all be manufactured by the present applicant, in other words, a book that is familiar with the transportation equipment field, the bridge field, and the construction equipment field. Since the applicant is an applicant, the bridge girder replacement vehicle 1 can be applied and configured. Therefore, it is a very special vehicle that is difficult to consider as a combination except for the present applicant.

  The bridge girder replacement vehicle 1 of this embodiment has a total of 8 axes in the unitized two vehicle parts 2A and 2B, and can lift or suspend heavy objects of about 25 tons per axis. An existing girder of about 200 tons can be lifted or hung. However, when the weight of the existing girder to be replaced is large, the number of unitized vehicle parts may be increased to three or more as a modified example of the bridge girder replacement vehicle.

The embodiment of the bridge girder replacement vehicle and the bridge girder replacement method according to the present invention has been described above, but the present invention is not limited to this embodiment, and various modifications can be made without departing from the scope of the present invention. .
For example, in the present embodiment, the replacement is performed using two bridge girder replacement vehicles and two work yards, but even if the replacement is performed using one bridge girder replacement vehicle and one work yard. good. In this case, since the removal of the existing girder M1 and the new girder N1 are performed separately, the construction period becomes longer, but since only one work yard is required, the range of traffic regulation can be narrowed.
In this embodiment, one temporary bridge girder 4 is bridged in the replacement space KK, but two or more temporary bridge girders 4 may be bridged.

DESCRIPTION OF SYMBOLS 1 Bridge girder replacement vehicle 1A 1st bridge girder replacement vehicle 1B 2nd bridge girder replacement vehicle 2A, 2B Vehicle part 3 Suspension part 4 Temporary bridge girder 10 Car body 14 Power source 20 Traveling device 21 Wheel 22 Axle 23 Arm member 24 Rotating plate 30 Sending out Jack 40 Crawler 50 Roof frame 60 Crane device KR Bridge H1 to H9 Bridge girder M1 Existing girder N1 New girder S1 First work yard S2 Second work yard KK Replacement space

Claims (4)

  1. A bridge girder replacement vehicle comprising a pair of vehicle parts arranged longer than the longitudinal dimension of an existing girder to be replaced, and a suspension part that connects the pair of vehicle parts,
    The suspension is
    A crane device for lifting the existing girder,
    Each vehicle part is
    A vehicle body with a power source,
    A plurality of traveling devices for traveling on the bridge;
    A delivery device that sends out a temporary bridge girder longer than the existing girder in the longitudinal direction;
    A linear moving device that travels over the temporary bridge girder;
    A bridge girder replacement vehicle characterized by comprising:
  2. In the bridge girder replacement vehicle according to claim 1,
    Each of the travel devices includes an axle that supports a plurality of wheels, and an arm member that is attached to the vehicle body so that the axle can turn, and can be steered independently of the vehicle body. Girder replacement vehicle.
  3. A vehicle arrangement step of running the bridge girder replacement vehicle according to claim 1 or 2 and arranging each vehicle portion in a state of being separated longer than the longitudinal dimension of the existing girder;
    An existing girder lifting step of lifting the existing girder by the crane device;
    A sending-out process of sending out the temporary bridge girder to the replacement space where the existing girder is lifted by the sending-out device;
    A linear movement step of linearly moving on the bridge bridge girder spanned by the linear movement device and crossing the replacement space;
    Traveling to a work yard adjacent to the bridge by the traveling device, and hanging the existing girder in the work yard by the crane device; and
    A new girder lifting process for lifting a new girder in a work yard by the crane device;
    Traveling to one end of the temporary bridge girder by the traveling device, linearly moving on the temporary bridge girder by the linear movement device, and arranging the new girder above the replacement space; and
    The temporary bridge girder removal step of sending out the temporary bridge girder by the sending device and removing it from the replacement space;
    A bridge girder replacement method comprising: a new girder installation step of suspending the new girder by the crane device and installing it in the replacement space.
  4. Two bridge girder replacement vehicles according to claim 1 or 2 are prepared as a first bridge girder replacement vehicle and a second bridge girder replacement vehicle, and the first bridge girder replacement vehicle travels to each vehicle part. Vehicle placement step for placing the vehicle in a state of being separated longer than the longitudinal dimension of the existing girder,
    An existing girder lifting step of lifting the existing girder by a crane device of the first bridge girder replacement vehicle;
    A sending-out step of sending the temporary bridge girder to the replacement space in which the existing girder is lifted by the sending device of the first bridge-girder replacement vehicle;
    A linear movement step of linearly moving on the temporary bridge girder spanned by the linear movement device of the first bridge girder replacement vehicle and crossing the replacement space;
    An existing girder suspension step of traveling to the first work yard adjacent to the bridge by the traveling device of the first bridge girder replacement vehicle, and suspending the existing girder at the first work yard by the crane device;
    A new girder lifting step of lifting a new girder at a second work yard adjacent to the bridge by the crane device of the second bridge girder replacement vehicle;
    The second bridge girder replacement vehicle travels to one end of the temporary bridge girder, and the linear movement device linearly moves on the temporary bridge girder to place the newly installed girder above the replacement space. Girder placement process;
    A temporary bridge girder removal step of sending out the temporary bridge girder by the delivery device of the second bridge girder replacement vehicle and removing it from the replacement space;
    A bridge girder replacement method, comprising: a new girder installation step in which the new girder is suspended and installed in the replacement space by a crane device of the second bridge girder replacement vehicle.
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CN107675633A (en) * 2017-09-27 2018-02-09 中铁十四局集团有限公司 The method that the existing whole hole of bridge is changed
CN110804958A (en) * 2019-11-26 2020-02-18 中铁第五勘察设计院集团有限公司 Whole hole beam frame changing method
CN110886222A (en) * 2019-10-31 2020-03-17 柳州市轨道交通工程有限责任公司 PC track beam transportation method

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CN105464009B (en) * 2016-01-13 2017-03-29 甄亮 The device and its construction method of quick-replaceable bridge
CN105648928A (en) * 2016-01-13 2016-06-08 郑悦 Bridge replacement device and construction method thereof
CN105672141B (en) * 2016-01-13 2017-03-22 宋朝林 Construction device for bridge floor replacement and paving and construction method thereof
CN106567335A (en) * 2016-11-01 2017-04-19 中铁大桥勘测设计院集团有限公司 Bridge construction hoisting system on bridge traveling crane carriageway slab
CN109914249A (en) * 2019-03-12 2019-06-21 刘金生 It is a kind of for bridge construction with the transporting equipment removed obstacles with regulatory function

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JPS6365761B2 (en) * 1982-10-08 1988-12-16 Nippon Tsun Kk
JP3901657B2 (en) * 2003-03-28 2007-04-04 ピーシー橋梁株式会社 Self-propelled precast slab erection machine
KR20080107085A (en) * 2007-06-05 2008-12-10 삼성물산 주식회사 Construction method for girder in bridge and crane for pulling up girder, vehicle for carriage girder, girder used for the same
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CN107675633A (en) * 2017-09-27 2018-02-09 中铁十四局集团有限公司 The method that the existing whole hole of bridge is changed
CN110886222A (en) * 2019-10-31 2020-03-17 柳州市轨道交通工程有限责任公司 PC track beam transportation method
CN110804958A (en) * 2019-11-26 2020-02-18 中铁第五勘察设计院集团有限公司 Whole hole beam frame changing method

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