JP2003313820A - Drive-out erection method of bridge - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drive-out erection method of a bridge capable of erecting the bridge in a short period in the state where the influence to the environment or a circumferential area is reduced by dispensing with secured working site of wide range and efficiently driving out the bridge without limiting the shape of the bridge to a linear one. <P>SOLUTION: This drive-out erection method of bridge comprises steps of manufacturing the bridge 1 on a working frame 20, connecting a temporary girder made on a traveling truck 10A (vehicle) to the bridge 1 and then supporting the bridge 1 by the traveling truck 10A; moving the traveling truck 10A to protrude the bridge 1 from the working frame 20; extending the bridge 1; supporting the bridge 1 by the traveling truck 10A in the rear of the bridge 1 after temporarily placing the bridge 1 on a pier 2; moving the traveling truck 10A to drive out the bridge 1; and repeating the extension and driving-out of the bridge 1, thereby erecting the bridge 1. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for feeding and erection of a bridge for feeding and erection the bridge above a predetermined area.

[0002]

2. Description of the Related Art Conventionally, as a method of constructing an overpass or an overpass above a traffic route (a predetermined area) such as a track or a road,
There is a hand-laying method in which a bridge is constructed on a work platform installed around a traffic route, and the bridge is erected above the traffic route by sequentially extending and sending out the bridge on the work platform.

[0003]

However, the conventional bridge feeding and erection method has the following problems. First, when sending out a bridge, a hand-held girder (temporary girder) with a truss structure that is lighter than the bridge at the front end in the direction of travel of the bridge
The cross-section force of the bridge main body is reduced by supporting the bridge girder ahead of the bridge main body by installing this hand girder. Therefore, it is necessary to provide a work space on the work platform on which the bridge for one section of the bridge pier and the manual girder can be placed, and the work platform is increased in size because it is equipped with a bridge feed device. Will end up. Furthermore, if the distance between the piers is large, it is necessary to install temporary columns to support the bridge between the piers. Therefore, because the construction site expands, it is necessary to carry out traffic regulation such as lane regulation and traffic closure of the surrounding traffic roads, which causes traffic congestion and has a significant impact on the traffic environment in the surrounding area. Exists. Also, because the bridge is sent out from the work platform using a hydraulic jack, the transport speed of the bridge is slow, work efficiency is very low, and the period of instability of the bridge protruding from the work platform is prolonged. There is a problem. Furthermore, by pushing the bridge out of the work platform, the bridge is transported above the traffic route.Therefore, the conventional bridge delivery method can be applied to bridges with linear shapes such as straight lines and arcs with a constant curvature. There is the problem of being limited.

Therefore, the present invention has been made in order to solve the above-mentioned problems, and it is not necessary to secure a wide range of work sites, and the bridge is not limited to the alignment of the bridge, and the bridge can be efficiently operated from the work platform. It is an object of the present invention to provide a method for delivering and erection of a bridge that allows the bridge to be erected above a predetermined area in a short period of time in a state where the influence on the environment of the surrounding area is reduced in order to deliver well.

[0005]

The present invention is constructed to solve the above-mentioned problems, and the invention according to claim 1 is a method for sending out and constructing a bridge, wherein (1) outside a predetermined area. The bridge was manufactured on the work platform installed in the, and the vehicle equipped with the means for raising and lowering the bridge was placed between the work platform and the predetermined area, and the temporary girder manufactured on the vehicle was connected to the front end of the bridge. Later, a bridge installation stage in which the elevating means of the vehicle is raised to support the temporary girder and the bridge, and (2) the vehicle is moved toward the predetermined area with the temporary girder forward and the bridge is projected from the work platform. Bridge movement stage, (3) Bridge extension stage where the rear end of the bridge is extended on the work platform, (4) Lowering means of the vehicle is lowered, and the bridge is attached to the bridge piers lined up before and after the predetermined area in advance. After temporarily placing the vehicle, move the vehicle toward the rear of the bridge. Raise the lifting means of the vehicle at a predetermined position the temporary spar and bridge supports, as a forward temporary digits,
A bridge sending step of sending the bridge above the predetermined area by moving the vehicle toward the predetermined area;
By repeating the bridge extension step and the bridge sending out step, the bridge is sent out between the piers that are lined up in front of and behind the specified area, the elevating means of the vehicle is lowered and the bridge is installed on the pier, and the bridge is placed above the specified area. It is characterized by including a bridge erection stage for erection of the bridge.

Here, the predetermined region is not limited to a region where traffic lines such as railroads and roads or structures exist, but the present invention secures a work site below the bridge erection position. It is especially effective to apply it to a difficult area. Further, the means of moving the vehicle is not limited,
You may use a rubber tire, a caterpillar, etc. Furthermore, the driving force is not limited. Furthermore, the temporary girder is
A girder such as a truss structure that is lighter than a bridge, is connected to the tip of the bridge in the traveling direction, and when the bridge is sent out, by supporting the temporary girder on the pier ahead of the bridge main body, It is a member that reduces the cross-sectional force. In addition,
The temporary girder preferably has a configuration that can be easily disassembled and removed.

According to the present invention, since the temporary girder is manufactured on the vehicle and the bridge is sent out by the movement of the vehicle,
It is not necessary to provide a space for mounting the temporary girder and the bridge feed-out device on the work platform, the work platform can be downsized, and the work site for the bridge delivery can be reduced. In addition, the speed of transportation of the bridge by the vehicle is high, and the bridge is supported by the vehicle between the piers, so there is no need to install temporary columns to support the bridge between the piers, so work efficiency in erection of the bridge is improved. And the construction period can be shortened. Further, since the bridge is supported from below by the elevating means of the vehicle without pushing the bridge from the work platform and the vehicle is transported in this state, the shape of the bridge to which the present invention is applicable is straight or The curvature of an arc or the like is not limited to a constant linear shape, and can be applied even when the shape is deformed into a longitudinal and transverse linear shape.

The invention described in claim 2 is the same as claim 1.
The method for sending out and constructing a bridge as described in (4), characterized in that the bridge is extended by connecting a temporary girder to the rear end of the bridge on the work platform in the bridge extension stage.

Here, when the crossing distance of the predetermined region and the length of the bridge are close to each other in the bridge sending stage,
When the bridge is moved to the erected position above the predetermined area, the vehicle supporting the rear end of the bridge may enter the predetermined area.

According to the present invention, since the temporary girder connected to the rear end of the bridge is supported and conveyed by the elevating means of the vehicle, the crossing distance of the predetermined region and the length of the bridge are close to each other.
Even when the amount of protrusion of the rear end portion of the bridge from the predetermined area is small when the bridge is transported to the erection position, the method of delivering and erection the bridge of the present invention can be realized without entering the vehicle into the predetermined area. It can be applied to build a bridge above a predetermined area.

The invention described in claim 3 is the same as claim 1.
Alternatively, the method of sending out and constructing a bridge according to claim 2 is characterized in that, in the step of sending out the bridge, vehicles are arranged in front of and behind a predetermined area, and the elevator is supported and sent out by the elevating means of each vehicle.

According to the present invention, since the bridge can be supported and sent out before and after a predetermined area, the bridge can be easily sent out in a stable state.

The invention according to claim 4 is the same as claim 1.
The method for sending out and constructing a bridge according to any one of claims 1 to 3, wherein the work platform includes bridge supporting means.
The support means is characterized in that it can move on the work platform.

Here, the supporting means is a dolly provided with a lifting means such as a jack, and the moving means of the dolly is not limited, and rubber tires or running rails may be used. Furthermore, the driving force is not limited.

According to the present invention, since the position and height of the fulcrum of the bridge on the work platform can be easily adjusted and the inclination of the bridge can be corrected during the sending operation, the bridge in the sending operation can be corrected. The stability of can be increased.

The invention according to claim 5 is the same as claim 1.
The method for sending out and constructing a bridge according to any one of claims 3 to 4, wherein the relative distance and angle of the indexes provided on the bridge are measured by a measuring means, and the bridge is based on the measured value by the measuring means. It is characterized in that position data indicating the position and the posture of is created.

The invention according to claim 7 is the same as claim 4
The method for sending out and constructing a bridge as described in 1 above, wherein the relative distance and angle of the index provided on the bridge are measured by a measuring means, and based on the measured value by this measuring means, position data indicating the position and attitude of the bridge is obtained. It is characterized by creating.

Here, as the measuring means, there is, for example, a measuring means composed of a CCD camera installed outside the vehicle and an optical wave range finder for emitting a light wave in the photographing direction of the CCD camera, which is provided on the bridge. The optical wave range finder measures the relative distance and angle of the index by capturing the index with a CCD camera. It should be noted that the installation of the measuring means is not limited to the configuration of being installed outside the vehicle or the configuration of being installed in another vehicle, and may be appropriately determined according to the construction site.

According to the present invention, since it is possible to convey and erection while confirming the position and posture of the bridge based on the position data, construction errors can be prevented and work efficiency can be improved.

The invention according to claim 6 is the same as claim 5
The method for delivering and erection of a bridge according to, wherein the vehicle and the elevating means actuate the vehicle and the elevating means based on an error between the position data of the bridge design image showing the position and the attitude in the bridge design image and the position data of the bridge. It is characterized in that it is provided with position correcting means for correcting the position of the bridge.

The invention described in claim 8 is the invention according to claim 7.
The method for sending out and constructing a bridge according to, wherein the supporting means operates the supporting means based on an error between the position data of the bridge design image indicating the position and the posture in the bridge design image and the position data of the bridge. Is provided with a position correcting means for correcting

According to the present invention, since the position of the bridge is automatically corrected by the position correcting means, the bridge erection work can be simplified and the work efficiency can be improved.

Therefore, in the method for sending out and constructing the bridge of the present invention, the bridge is supported from below by the elevating means of the vehicle and moved without securing a wide area for work, so that the work platform is moved above the predetermined area. Since the bridge is efficiently delivered, the bridge is not limited to the linear shape of the bridge, and the bridge can be installed above the predetermined area easily and in a short period of time in a state where the influence on the environment of the surrounding area is reduced.

[0024]

DETAILED DESCRIPTION OF THE INVENTION Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In addition, in the description of each embodiment, the same components are denoted by the same reference numerals, and duplicate description will be omitted.

The method for sending out and constructing a bridge according to the embodiment of the present invention is a method for sending out and constructing a bridge above a predetermined area, and can be applied to various predetermined areas such as areas where traffic routes and structures exist. However, in this embodiment, a case where a bridge is installed above the track will be described as an example.

First, a method for delivering and constructing a bridge according to the first embodiment of the present invention will be described. FIG. 1 is a view showing a method for delivering and erection a bridge according to a first embodiment of the present invention, (a) is a side view showing a process of manufacturing a bridge, and (b) is a side view.
[Fig. 3] is a side view showing a case where a hand-held girder is connected to a bridge.
2A and 2B are diagrams showing a method for delivering and erection a bridge according to the first embodiment of the present invention, in which FIG. 2A is a side view showing preparation for delivering a bridge, and FIG. 2B is a side view showing when the bridge is being delivered. It is a figure. FIG. 3 is a view showing a method for delivering and erection a bridge according to the first embodiment of the present invention, (a) is a side view showing a case of extending the bridge, and (b) is a side view showing the case of delivering the extended bridge. It is the side view shown. FIG. 4 is a diagram showing a method for delivering and erection a bridge according to the first embodiment of the present invention, (a) is a side view showing dismantling of a hand-held girder, and (b) is a view showing erection of a bridge. It is the side view shown. FIG. 5 shows the first of the present invention.
It is the figure which showed the work stand which concerns on embodiment, (a) is a side view, (b) is a rear view. FIG. 6 is a view showing a method for delivering and erection a bridge according to the first embodiment of the present invention.
It is an AA sectional view of (b). In this embodiment,
The left side of each drawing except FIGS. 5B and 6 is the front, and the right side is the rear.

First, each device in the method for delivering and constructing a bridge according to the first embodiment of the present invention will be described. As shown in FIG. 4B, the bridge 1 is a part of an overpass constructed above the line S, and is a portion installed above the line S. As shown in FIGS. 4 (b) and 6, the bridge piers 2 are pillars that support the four corners of the bridge 1, and are erected in pairs in the width direction of the bridge 1, and each set is in front of and behind a predetermined area. Are lined up. As shown in FIGS. 2 and 3, the hand-carried girder (temporary girder) 3 is a girder of a truss structure or the like, which is lighter than the bridge 1, and is connected to the front end portion of the bridge 1 when the bridge 1 is sent out. A member that reduces the sectional force of the main body of the bridge 1 by supporting the hand-held girder 3 on the pier 2 ahead of the main body of the bridge 1. Further, the hand girder 3 is configured so that it can be easily disassembled and removed.

As shown in FIGS. 1, 5 and 6, the traveling carriages (vehicles) 10A and 10B include a driver's cab 11, a carriage portion 12 provided with rubber tires, and a lifting jack installed on the carriage portion 12. Device 13 and is self-propelled by the engine.
It is arranged at a predetermined height by the upper installation stand 17.
The traveling carriages 10A and 10B are composed of a conveying traveling carriage 10A for conveying the bridge 1 and a supporting traveling carriage 10B for supporting one end of the conveyed bridge 1, and each traveling carriage 10A, 10B has two bogie parts 12,
12 and lifting jack devices 13, 13. In this embodiment, the vehicle widths of the traveling vehicles 10A and 10B are smaller than the distance between the piers 2 and 2 erected in the width direction of the bridge 1. Lifting jack device 13
As shown in FIG. 6, a loading portion 14 that is a four-circumference framework for placing the bridge 1 and four corners of the loading portion 14 are supported.
The hydraulic cylinder 15 comprises a pedestal 16 on which the hydraulic cylinder 15 is erected.
Can be raised and lowered.

The work platform 20 is a work platform installed outside the area of the track S, and as shown in FIGS.
And a movable gate crane 22 installed on the stage 21. The stage 21 has a central portion in the width direction over the entire length.
An opening 23 having a width that allows the loading portion 14 of the lifting jack device 13 to pass therethrough is provided. Mobile jack device 25
As shown in FIG. 5, a plurality of devices are provided on the stage 21 and serve as a fulcrum of the bridge 1, and an elevator jack 27 for supporting the bridge 1 is provided on a cart 26 equipped with wheels. And moves on a rail (not shown) provided in the bridge axis direction on the stage 21.

Next, a method of delivering and erection a bridge according to the first embodiment of the present invention will be described. (1) Bridge installation stage First, as shown in FIG. 1 (a), two piers 2 are erected in the width direction of the bridge 1 so as to support the four corners of the bridge 1, and each set is set up on a track S. Line up before and after. In addition, FIG.
As shown in FIG. 2, a truck (not shown) in which each member of the bridge 1 is loaded is arranged below the stage 21 of the work platform 20, and each member of the bridge 1 is used by using the hoist 24 of the movable gate crane 22. Place it on the stage 21. Then, the movable gate crane 22 is moved in the longitudinal direction of the stage 21, and the bridge 1 is manufactured on the stage 21.
It is supported by each movable jack device 25 above.

Further, as shown in FIG. 1B, a transporting carriage 10A is arranged in front of the work platform 20. Then, the manual girder 3 is manufactured on the lifting jack device 13 of the transporting carriage 10A, and the front end portion of the manual girder 3 is attached to the work platform 2.
It is supported by the bridge pier 2 located immediately before 0, and the rear end of the hand-held girder 3 is connected to the front end of the bridge 1. Therefore, it is not necessary to provide a work space on the work platform 20 for manufacturing the hand-held girder 3.

Next, as shown in FIG. 2 (a), the transporting carriage 10A is moved so that the lifting jack device 13 is arranged at the approximate center of gravity of the bridge 1 to which the hand girder 3 is connected. . Since the bridge 1 to which the hand girder 3 is connected is also supported by the bridge pier 2 and each movable jack device 25, the transporting carriage 10A is set to the center of gravity of the bridge 1 to which the hand girder 3 is connected. It is not necessary to dispose the position accurately, and it is sufficient if the position of the bridge 1 does not change significantly.

Further, as shown in FIG. 2B, the loading portion 14 of the lifting jack device 13 is raised and the lifting jack 27 of the movable jack device 25 is raised.
The bridge 1 is separated from the pier 2. Then, the height of the bridge 1 is adjusted and the spacer 4 provided with rollers or the like for sliding the bridge 1 is installed above the bridge pier 2.

(2) Bridge moving stage Next, the hand truck girder 3 is moved forward and the transporting carriage 10A is moved toward the track S so that the hand truck girder 3 is projected above the track S. Here, as shown in FIG. 6, the bridge piers 2 are erected in pairs in the width direction of the bridge 1, but the traveling carriage 10A has the piers 2, 2 erected in the width direction of the bridge 1. Since it is smaller than the interval of, it is possible to secure a long moving distance without interfering with the piers 2 and 2. Also, FIG.
As shown in (a), by moving the transporting carriage 10A to the vicinity of the track S, the front end portion of the manual girder 3 is passed above the track S and is erected in front of the track S. The pier 2 supports the hand girder 3. In addition, hand-rolled digit 3
Spacers 4 are installed on the bridge piers 2 that support the hand girders 3 and the spacers 4 for adjusting and stabilizing the heights of the bridges 1. As a result, the height of the bridge 1 is adjusted at the front end of the hand girder 3 and at the rear end of the bridge 1, so it is necessary to adjust the height of the bridge 1 at the position of the pier 2 behind the hand girder 3. The spacer 4 of the rear pier 2 is removed because it disappears.

(3) Bridge extension step Next, as shown in FIG. 3 (a), the rear end of the bridge 1 is extended in the space vacated on the work platform 20 by sending out the bridge 1.

(4) Bridge delivery stage Next, the elevating jack device 13 of the transporting carriage 10A is lowered to temporarily place the bridge 1 on the bridge pier 2, and then the transporting carriage 10A is moved backward. Then, the lifting jack device 13 of the transporting carriage 10A is arranged at a substantially center of gravity position of the extended bridge 1, and the loading unit 14 is raised to support the bridge 1. In this state, the traveling carriage 10A is moved forward to cross the bridge 1 above the track S. In addition, as shown in FIG. 3B, the supporting traveling carriage 10B is arranged below the manual girder 3 which crosses above the track S, and the loading unit 14 of the lifting jack device 13 of the supporting traveling carriage 10B is arranged. Raise and support hand girder 3. Then, the bridge extension stage and the bridge delivery stage are repeated until each traveling carriage 10A, 1
Each traveling carriage 10 without entering 0B into the track S
By moving A and 10B, the bridge 1 is sent out above the track S from the work platform 20.

(5) Bridge erection stage Next, as shown in FIG. 4 (a), the supporting traveling carriage 10B.
Dismantle and remove the signboard girder 3 connected to the bridge 1 in front of. Then, as shown in FIG. 4B, each traveling carriage 1
The bridge 1 is sent to the erected position by 0A and 10B, and the lifting jack devices 13 and 13 of the traveling carriages 10A and 10B.
Is lowered, the bridge 1 is installed on each pier 2, and the bridge 1 is installed above the track S, and the installation work of the bridge 1 is completed.

Therefore, in the method for sending out and constructing the bridge of the present invention, the bridge 1 is supported and moved from below by the lifting jack device 13 of each traveling carriage 10A, 10B without securing a wide work site. In order to efficiently send the bridge 1 above the track S from the work platform 20, the bridge 1 is not limited to the linear shape of the bridge 1 and can be simply and quickly above the track S in a state where the influence on the environment of the surrounding area is reduced. 1 can be installed.

Now, a configuration for creating three-dimensional position data indicating the position and orientation of the bridge 1 at each stage of the bridge feeding and erection method will be described. FIG. 9 is a block diagram showing the position data creation device according to the first embodiment of the present invention. The three-dimensional position data is data indicating the position and posture of the bridge 1, and as shown in FIG. 9, the measurement device 30 in which each index provided at the four corners of the bridge 1 is installed outside the traveling carriages 10A and 10B. The position data creating device 40 creates three-dimensional position data based on the measured values.

As shown in FIG. 9, the measuring device 30 includes a CCD camera 31 for capturing an index and a CCD camera 3
It is composed of a light wave range finder 32 that measures the relative distance and angle of the index by irradiating the light wave in the imaging direction 1. As shown in FIG. 9, the position data creating device 40 is configured by a computer, and a data creating unit 41 that creates three-dimensional position data of the bridge 1 from the measured values of each index by the light wave range finder 32, a monitor or a printer. And output means 42 such as.

Next, a method of creating three-dimensional position data of the bridge 1 will be described. First, indexes such as plate members are provided at the four corners of the bridge 1, and the indexes are captured by the CCD camera 31.
At this time, a light wave is emitted from the light wave range finder 32 in the shooting direction of the CCD camera 31, and the relative distance and angle of the index are measured. Further, the measured values of all the indexes are obtained, and the measured values are used as the data creating means 4 of the position data creating device 40.
Send to 1. The data creating means 41 that has received the measured values calculates the positional relationship of the four corners of the bridge 1 based on the measured values of each index, creates three-dimensional position data indicating the position and orientation of the bridge 1, and sends it to the output means 42. . The worker confirms the position and posture of the bridge 1 based on the three-dimensional position data displayed on the output means 42.

Therefore, by constructing the three-dimensional position data at each stage of the bridge erection method and performing the erection work while confirming the position and posture of the bridge 1, construction errors are prevented and work efficiency is improved. be able to.

Further, when an error occurs in the position and orientation of the bridge 1 during transportation and the frame design image, the error may be automatically corrected by using the three-dimensional position data of the bridge 1. . FIG. 10 is a block diagram showing the position correction device according to the first embodiment of the present invention. The position correction device 50 is shown in FIG.
As shown in 0, a frame design image position database 51 that stores the frame design image position data indicating the position and orientation of the bridge 1 in the frame design image, a search and extraction unit 52 of the frame design image position data, the frame design image position data and the three-dimensional position. It is composed of an error detecting means 53 for comparing the data and detecting an error. In addition, as shown in FIG. 10, the traveling carriages 10A and 10B have control means for automatically operating the traveling carriages 10A and 10B and the respective lifting jack devices 13, 13, 13, 13 based on the errors to correct the errors. 60 are installed. Further, as shown in FIG. 10, each movable jack device 25 installed on the stage 21 of the work platform 20 is automatically controlled to correct the error by automatically operating each movable jack device 25 based on the error. Means 61 are installed.

Next, a method of correcting the error of the bridge 1 will be described. First, the three-dimensional position data created by the position data creating device 40 is input to the error detection means 53, and the frame design image position data corresponding to this three-dimensional position data is extracted from the frame design image position database 51 by the search extraction means 52. Then, it is input to the error detection means 53. The error detection means 53, to which various data are input, compares the three-dimensional position data with the rack design image position data to calculate an error,
This error is sent to the control means 60 of the traveling vehicles 10A and 10B and the control means 61 of each mobile jack device 25. Then, the control means 60 controls the traveling carriages 10A, 1 based on the error.
0B and the respective lifting jack devices 13, 13, 13, 13, and the control means 61 corrects the error of the bridge 1 by operating the movable jack device 25 based on the error.

According to this structure, since the position and the posture of the bridge 1 are automatically corrected in the work for sending out the bridge 1, the construction error can be surely prevented, and the work efficiency can be further enhanced.

Next, a method for delivering and erection a bridge according to the second embodiment of the present invention will be described. FIG. 7: is the figure which showed the sending-out erection method of the bridge which concerns on 2nd Embodiment of this invention, (a) is the side view which showed the time of extending a bridge, (b)
[Fig. 4] is a side view showing a state where the extended bridge is sent out. FIG. 8 is a diagram showing a method for sending out and constructing a bridge according to the second embodiment of the present invention, (a) is a side view showing the dismantling of a hand-held girder, and (b) is a diagram showing the process of constructing a bridge. It is the side view shown. In this embodiment, the left side of each drawing is the front,
The right side is backward.

The method for sending out and constructing a bridge according to the second embodiment of the present invention has substantially the same structure as that of the first embodiment, and it does not extend the bridge 1 on the work platform 20 in sequence and crosses the track S. The bridge 1 having a length similar to the distance is sent out.

First, after the bridge 1 is manufactured on the work platform 20 in the same manner as in the first embodiment, the transporting carriage 10A is used.
Connect the above-mentioned tip manual girder 3A manufactured above to the front end of the bridge 1. Then, as shown in FIG. 7A, the bridge 1 is sent out from the work platform 20 by the transporting carriage 10A, and the rear end manual girder 3B is connected to the rear end portion of the bridge 1 on the work platform 20. Extend.

Then, as shown in FIG. 7 (b), the bridge 1 is transported to the erected position above the track S while the rear end manual girder 3B is supported by the lifting jack device 13 of the transport carriage 10A. And the piers 2, 2 erected before and after the track S
And the bridge 1 is installed above the track S. At this time, since the length of the bridge 1 is close to the crossing distance of the line S, the amount of the rear end of the bridge 1 protruding from the line S is small, but the rear end of the bridge 1 has a rear end. Since the hand girder 3B is connected and the lifting jack device 13 of the transport carriage 10A supports the rear end hand girder 3B, the transport carriage 10A does not enter the track S. ,
The bridge 1 can be transported to the installation position. In addition, after the bridge 1 is erected, as shown in FIG.
A and 3B are dismantled and removed, and as shown in FIG. 8 (b), the bridge 1'is connected to the front and rear ends of the bridge 1 by using a lifting machine K such as a crane, and the erection work of the bridge 1 is performed. To complete.
In addition, in the method for sending out and constructing a bridge according to the second embodiment, a configuration that creates three-dimensional position data indicating the position and orientation of the bridge 1 and a configuration that corrects the position and orientation of the bridge 1 using the three-dimensional position data It goes without saying that you can

An example of the preferred embodiment of the present invention has been described above. However, the present invention is not limited to the above embodiment, and design changes can be appropriately made without departing from the spirit of the present invention.

[0051]

EFFECTS OF THE INVENTION According to the method for erection of a bridge of the present invention, it is not necessary to provide a space for mounting a temporary girder and a device for unloading a bridge on the work platform, the work platform is downsized, and the work site is reduced. Therefore, the influence on the environment in the surrounding area can be reduced. In addition, since the speed of transportation of the bridge by the vehicle is high, it is possible to efficiently carry out the work, and the bridge is supported by the vehicle between the piers, and temporary columns etc. are installed between the piers to support the bridge. Since there is no need to do so, the work efficiency in erection of the bridge can be improved and the construction period can be shortened.
Further, since the bridge is supported from below by the elevating means of the vehicle without pushing the bridge from the work platform and the vehicle is transported in this state, the shape of the bridge to which the present invention is applicable is straight or The curvature of an arc or the like is not limited to a constant linear shape, and can be applied even when the shape is deformed into a longitudinal and transverse linear shape. In addition, in the structure in which the temporary girder is connected to the rear end of the bridge and extended, the temporary girder connected to the rear end of the bridge can be supported and transported by the elevating means of the vehicle, so the crossing distance of the predetermined area According to the present invention, the length of the bridge is similar to that of the bridge, and even when the amount of protrusion of the rear end portion of the bridge is small when the bridge is transported to the erection position, the vehicle does not enter the predetermined area. The bridge can be erected above the predetermined area by applying the method for delivering and erection of the bridge.
Further, in the configuration for creating the bridge position data, since the bridge can be transported and installed while confirming the position and posture of the bridge, construction errors can be prevented and work efficiency can be improved. Further, in the configuration in which the position of the bridge is automatically corrected by the position correcting means, the work of feeding and erection of the bridge can be simplified.

[Brief description of drawings]

1A and 1B are diagrams showing a method for delivering and erection a bridge according to a first embodiment of the present invention, in which FIG. 1A is a side view showing a process of manufacturing a bridge, and FIG. It is the side view which showed the case.

2A and 2B are diagrams showing a method for delivering and erection a bridge according to the first embodiment of the present invention, FIG. 2A is a side view showing preparation for delivering a bridge, and FIG. 2B is a side view showing a time when the bridge is being delivered. It is a figure.

FIG. 3 is a view showing a method of delivering and erection a bridge according to the first embodiment of the present invention, (a) is a side view showing a case of extending the bridge, and (b) is a side view of delivering the extended bridge. It is the side view shown.

4A and 4B are diagrams showing a method of delivering and erection a bridge according to the first embodiment of the present invention, FIG. 4A is a side view showing dismantling of a hand-held girder, and FIG. 4B is a view of erection of a bridge. It is the side view which showed.

5A and 5B are views showing a work platform according to the first embodiment of the present invention, in which FIG. 5A is a side view and FIG. 5B is a rear view.

FIG. 6 is a view showing a method for delivering and erection a bridge according to the first embodiment of the present invention, and is a sectional view taken along line AA of FIG. 4 (b).

7A and 7B are views showing a method of delivering and erection a bridge according to a second embodiment of the present invention, FIG. 7A is a side view showing the case of extending the bridge, and FIG. 7B is a side view showing the case of delivering the extended bridge. It is the side view shown.

8A and 8B are diagrams showing a method for delivering and erection a bridge according to a second embodiment of the present invention, FIG. 8A is a side view showing dismantling of a hand-held girder, and FIG. 8B is a view showing erection of a bridge. It is the side view which showed.

FIG. 9 is a block diagram showing a position data creation device according to the first embodiment of the present invention.

FIG. 10 is a block diagram showing a position correction device according to the first embodiment of the present invention.

[Explanation of symbols]

1 ... Bridge 2 ... pier 3 ... Handed girder 10A ... ・ Traveling carriage 10B ... Supporting traveling cart 12 ... ・ Bogie unit 13 ··· Lifting jack device 20 ... Work platform 25 ··· Mobile jack device 30 ... Measuring device 40 ··· Position data creation device 41 ... Data creation means 50 ··· Position correction device 53 .... Error detection means 60 ··· Control device (traveling vehicle) 61 ··· Control device (mobile jack device)

Continued front page    (72) Inventor Toru Shimizu             1-25-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo Taisei             Construction Co., Ltd. (72) Inventor Hiroyasu Inamori             1-25-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo Taisei             Construction Co., Ltd. (72) Inventor Yasuo Nishida             1-25-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo Taisei             Construction Co., Ltd. (72) Inventor Susumu Hirota             3-18 Motoshio-cho, Minami-ku, Nagoya-shi, Aichi             Mick Co., Ltd. F-term (reference) 2D059 CC07 CC13 DD03

Claims (8)

[Claims] 1. A method of delivering and erection a bridge, comprising the following steps. (1) A vehicle, which is manufactured on a work platform installed outside a predetermined area, is provided with the bridge elevating means, is arranged between the work platform and the predetermined area, and the vehicle is provided at a front end portion of the bridge. A bridge installation step of supporting the temporary girder and the bridge by raising the elevating means of the vehicle after connecting the temporary girder manufactured above. (2) A bridge moving step of causing the bridge to project from the work platform by moving the vehicle toward the predetermined area with the temporary girder forward. (3) Bridge extension step of extending the rear end of the bridge on the work platform. (4) After lowering the elevating means of the vehicle and temporarily placing the bridge on the bridge piers that are lined up in front of and behind the predetermined area, move the vehicle toward the rear of the bridge at a predetermined position. By raising the elevating means of the vehicle to support the temporary girder and the bridge, and moving the vehicle toward the predetermined area with the temporary girder forward, so that the bridge is above the predetermined area. Bridge sending out stage. (5) By repeating the bridge extension step and the bridge delivery step, the bridge is delivered between the bridge piers arranged in front of and behind the predetermined area, and the elevating means of the vehicle is lowered to cause the bridge. Is installed on the pier and the bridge is erected above the predetermined area. 2. The bridge feed-out according to claim 1, wherein, in the bridge extension step, the bridge is extended by connecting a temporary girder to a rear end portion of the bridge on the work platform. Construction method. 3. The bridge sending step, wherein the vehicles are arranged before and after the predetermined area, and the bridge is supported and sent by the elevating means of each vehicle. The method of sending and erection the bridge described in. 4. The work platform comprises a support means for the bridge, and the support means is movable on the work platform. The method for sending out and erection the bridges described. 5. A relative distance and an angle of an index provided on the bridge are measured by a measuring unit, and position data indicating a position and a posture of the bridge are created based on a value measured by the measuring unit. The method for sending out and constructing a bridge according to any one of claims 1 to 3. 6. The vehicle and the elevating means actuate the vehicle and the elevating means on the basis of an error between a bridge design image position data indicating a position and a posture in a bridge design image of the bridge and a position data of the bridge, The method for sending out and constructing a bridge according to claim 5, further comprising position correcting means for correcting the position of the bridge. 7. A relative distance and an angle of an index provided on the bridge are measured by a measuring unit, and position data indicating a position and a posture of the bridge are created based on a value measured by the measuring unit. The method for sending out and constructing a bridge according to claim 4. 8. The support means operates the support means based on an error between position data of the bridge and position data of a bridge design image indicating a position and orientation of the bridge in the bridge design image, and corrects the position of the bridge. The method for sending out and erection of a bridge according to claim 7, further comprising: