JP4460907B2 - Temporary bridge erection device and erection method - Google Patents

Description

    The present invention relates to a device for laying a temporary bridge in a place without a bridge and a method for erection.

Bridges may be needed to overcome topographical obstacles. If a full-scale bridge cannot be constructed, a temporary bridge will be built, but even a temporary bridge is not easy to construct. Therefore, a construction method has been developed in which a pre-manufactured bridge body module is mounted on a vehicle and transported to the site, and connected to the required length to form a temporary bridge. Examples of apparatuses for performing such a construction method can be seen in Patent Documents 1-7.
Japanese Patent No. 2941638 (2nd page, FIG. 3) Japanese Patent No. 2880396 (page 2-3, FIG. 2) Japanese Patent No. 3028909 (2nd page, FIG. 1) Japanese Patent No. 2892954 (2nd page, FIG. 2) US Pat. No. 5,042,101 (third column, FIGS. 7a-7c) German Patent Publication No. 195 28 869 (5th column, FIGS. 2a-2j) German Published Patent Publication No. 37 37 682 (5-6 column, Fig. 5-9)

    The devices described in Patent Documents 5 to 7 connect bridge modules on a vehicle, and extend the connection to the opposite bank. The long bridge body module connection body is projected in a cantilever manner, and the moment that the mass of the bridge body module connection body makes cannot be easily supported. Therefore, a support base that supports the ground is projected forward of the vehicle, and a bridge module connecting body is extended from this support base (Patent Documents 5 and 6). The manipulator provided in the rear part is engaged with a rear vehicle, and the device which restrains that the rear part of a front vehicle tries to float by the mass of a rear vehicle is made | formed (patent document 7).

    Even with the above-mentioned ingenuity, it is inevitable that the construction method of projecting a long bridge module module as a cantilever will cause instability. Moreover, in the apparatuses described in Patent Documents 5 and 6, it is necessary to provide a gap at the center of the road floor of the bridge module because of the structure of the installation mechanism. Therefore, a large vehicle having its own tread width that matches the road surface spacing on both sides can cross this temporary bridge, but there is a restriction that a small vehicle with a narrow tread width cannot cross.

    On the other hand, Patent Document 1 describes a temporary bridge erection device with an approach different from the above. In other words, the guide beam is passed to the opposite shore prior to the road bed, the road bed module is suspended and connected to the guide beam in order, and pushed forward to repeat the operation. It is something to save. According to this construction method, since the guide beam that protrudes as a cantilever is lighter than the roadbed portion, there is an advantage that stability is not easily lost even if the length of the guide beam is long.

    However, the apparatus described in Patent Document 1 also has some disadvantages.

    The first demerit is that the role of a construction vehicle equipped with a crane and a transport vehicle that carries materials are clearly separated, and work cannot proceed unless they are paired. In other words, even if a short temporary bridge is required, at least two vehicles must be dispatched, which costs equipment and personnel costs.

    The second demerit is that the guide beam and the roadbed are completely separate bodies. Considering the work procedure, the roadbed is first loaded on the transport vehicle, and the guide beam is loaded on it. Or a guide beam and a roadbed part are piled up in a separate conveyance vehicle. In any case, a large transport capacity is required, which increases the transport cost.

    The third demerit is that the roadbed must be hung on the guide beam by manipulating the crane. This necessitates a certain skill for the work personnel. In addition, when this device is used in a battle area, there is a problem that it is easy to be detected by an enemy force by a tall crane.

    The fourth demerit is that it is difficult to match mobility because the structure of the construction vehicle and the transport vehicle are completely different. If the mobility of the two vehicles does not match, it becomes necessary to act in accordance with the vehicle with the lower performance, which hinders the efficiency of the activities.

    The present invention has been made in view of the problems of the conventional temporary bridge erection device as described above, and the object of the present invention is to perform the temporary bridge erection work reasonably and stably and efficiently. An object of the present invention is to provide a erection device and a temporary bridge erection method using the erection device. In addition, regardless of whether a single erection vehicle or a plurality of erection vehicles cooperates, the temporary bridge erection work can be carried out reasonably and stably and efficiently. It is in providing an apparatus and a construction method.

    In order to achieve the above object, according to the present invention, a construction device and a construction method for a temporary bridge are configured as follows.

    (1) A temporary bridge erection device is housed in each of the bridge body module, a bridge body module that is stacked and mounted on the construction car, and slidable in the longitudinal direction of the bridge body module. A guide beam module that can be extended and removed from the bridge body module, a boom for construction projecting from the front of the construction vehicle, and a bridge module at the mounting position on the construction vehicle is lifted below A space for receiving another bridge module is formed, and among the bridge modules stacked in a plurality of stages, one other than the lowest one is lifted, and only the lowest bridge module can be mounted on the construction boom. A lift device, a guide beam feeding device for feeding out the guide beam module or its connecting body from the erection boom, and a single, young Alternatively, the connected bridge body module is extended from the erection boom, and a bridge body extension device that entrusts the support of the bridge body module to a single or connected guide beam module whose front end is landed, and the front end is landing. And a landing device for landing a rear end of the bridge module which is in a state or is connected.

    (2) In the construction device for a temporary bridge configured as described above, the construction vehicle has a self-propelled ability.

    (3) In the temporary bridge erection device configured as described above, the erection vehicle is connected to another vehicle having a self-propelled ability.

    (4) In the temporary bridge erection device configured as described above, the erection boom functions as the landing device.

    (5) In the construction device for a temporary bridge configured as described above, the guide beam extension device or the bridge body extension device is a single or connected guide beam module or a single or connected bridge. Used to lift the body module to the erection vehicle.

    (6) The temporary bridge erection apparatus configured as described above includes a manipulator that lifts one end of the bridge unit module that is in a landing state or is connected to the erection boom.

    (7) In the construction device for the temporary bridge configured as described above, the bridge module can be deformed in the direction of increasing the moment of inertia of the cross section, and the power required for the deformation is supplied from the power source on the construction vehicle side. The

    (8) In the construction device for a temporary bridge configured as described above, the bridge module can be deformed in the direction of increasing the moment of inertia of the cross section, and power required for the deformation is supplied from a power source on the bridge module side. Is done.

    (9) In the construction device for a temporary bridge configured as described above, the power source is of an energy storage type.

    (10) In the construction device for a temporary bridge configured as described above, the bridge module has a form of an all-floor road whose entire width is a road bed.

    (11) In the temporary bridge erection device configured as described above, the erection vehicle is provided with an alignment adjustment mechanism for the bridge module to be extended.

(12) A temporary bridge is constructed by performing the following steps using the construction apparatus as described above.
(A) Step of placing a construction vehicle at a temporary bridge construction site (A) Of the bridge modules stacked in a plurality of stages, the number required at that time is mounted on the construction boom, and the number is If so, a step of connecting the bridge body modules and connecting the guide beam modules (c) a step of extending the single or connected guide beam module from the erection boom and landing the tip (D) a step of extending the single or coupled bridge module from the erection boom and entrusting the support of the bridge module to the single or coupled guide beam module whose tip is in a landing state ( E) A step of landing a rear end of the single or linked bridge body module whose tip is in a landing state.

(13) Using the erection device described in any one of (7) to (9) above, following the steps (a) to (e) above, the following steps are further performed to construct a temporary bridge. .
(F) A step of deforming the bridge module in the direction of increasing the moment of inertia by supplying power from the power source.

(14) In the construction apparatus as described above, two construction vehicles are used, and the following steps are performed to construct a temporary bridge.
(A-1) Step of arranging two erection vehicles in front and rear in tandem at the temporary bridge erection location (I-1) Of the bridge modules stacked in multiple stages, the number required at that time Step (c) for connecting the bridge module modules to each other and connecting the guide beam modules to each other when the number is plural. Step (D-1) of extending the guide beam module thus constructed from the installation boom of the front installation vehicle and landing the tip thereof The single or connected bridge module is extended from the installation boom of the front installation vehicle. (E) entrusting the support of the connecting body of the bridge module to the single or connected guide beam module whose front end is in a landing state. Unitary in the state, or linked step of landing the rear end of the bridge member module.

(15) Using the erection device described in any one of (7) to (9) above, following the steps (a-1) to (e), further performing the following steps to construct a temporary bridge Erection.
(F) A step of deforming the bridge module in the direction of increasing the moment of inertia by supplying power from the power source.

(16) Using the erection device described in (6) above, the temporary bridge is erected by performing the following steps between the steps (A-1) and (I-1).
(A-2) The step of grasping the rear part of the front construction vehicle with the manipulator of the rear construction vehicle and adjusting the alignment between the construction vehicles.

(17) Using the erection device described in (11) above, the temporary bridge is erected by performing the following steps between the steps (A-1) and (I-1).
(A-3) Using one or both of the alignment adjusting devices for the front erection vehicle and the rear erection vehicle, a bridge module extended from the front erection vehicle and a bridge module extended from the rear erection vehicle The step of adjusting the alignment.

(18) The following steps are performed using an erection device comprising an erection vehicle, a bridge module mounted in a stack on the erection vehicle, and a telescopic guide beam protruding from the front of the erection vehicle. To build a temporary bridge.
(A) Step of placing an erection vehicle at a temporary bridge erection site (A) Step of setting the telescopic guide beam to a predetermined length (C) Necessary at the time of the bridge module stacked in a plurality of stages (E) a step of landing the tip of the telescopic guide beam. (E) a step of landing the telescopic guide beam. Or step of extending the connected bridge body module from the construction vehicle and entrusting the support of the bridge body module to the telescopic guide beam whose tip is in a landing state. (F) Single or connection in which the tip is in a landing state Landing a rear end of the bridge module.
(G) A step of pulling out the telescopic guide beam from the bridge module .

    (19) In the construction method of the temporary bridge configured as described in (18), the construction vehicle has a self-propelled ability.

    (20) In the construction method of the temporary bridge configured as described in (18), the construction vehicle is connected to another vehicle having a self-propelled ability.

(21) An erected vehicle, a bridge module mounted in a stacked manner on the erected vehicle, a gate module that can be raised and lowered on the erected vehicle, and a gate having a pulley at the tip, and a single unit or connected The bridge body feeding device that feeds the bridge body module out of the erection vehicle, and a wire that can be fed out and wound up, are installed on the erection vehicle, and the wire is connected to the gate via the gate pulley. The following steps are performed using a erection device that is connected to the single or connected bridge module to be extended and includes a winch that controls the attitude of the single or connected bridge module. Then build a temporary bridge.
(A) Steps in which two erection vehicles are arranged in tandem at the temporary bridge erection site (a) The gate is in a lying state in the front erection vehicle, and the gate is raised in the rear erection vehicle Step (c) A step (D) of placing the bridge module mounted on the erection vehicle at the rear of the bridge module through the standing gate through the standing gate. ) Step (e) of connecting the bridge module mounted on the front erection vehicle and the bridge module mounted on the rear erection vehicle, which are required at that time, alone or A step of connecting the wire of the winch of the rear construction vehicle to the connected bridge body module via the pulley of the standing gate; and (f) the bridge body feeding device of the front construction vehicle; A step of controlling the winch of one of the erected vehicles and feeding out the single or connected bridge module from the front erected vehicle while controlling the posture thereof (ki) the single or connected bridge Landing the tip of the module (G) Landing the rear end of the single or linked bridge module and removing the wire.

    (22) In the method for constructing a temporary bridge configured as described in (21) above, the construction vehicle has a self-propelled ability.

    (23) In the method for constructing a temporary bridge configured as described in (21) above, the construction vehicle is connected to another vehicle having a self-propelled ability.

    (1) Since a plurality of bridge body modules are stacked and mounted on a construction vehicle, it is possible to construct temporary bridges of different lengths by simply moving one construction vehicle. Each bridge module is housed so that it can slide in the longitudinal direction of the bridge module, and a guide beam module that can be extended and removed from the bridge module is provided. First, the guide beam module is extended to reach the opposite bank. Thus, the bridge module can be transmitted to the opposite shore without being brought into the cantilever state in a form transmitted along the guide beam module. Thereby, a bridge module can be constructed stably without difficulty. The guide beam module is projected in a cantilever state, but this one is lighter than the bridge module, so it will not destabilize the installation car.

    In addition, since the guide beam module is transported in a state where it is placed in the bridge module, the total volume of the transported object including the bridge module and the guide beam module can be reduced. As a result, there is an advantage that the height of the construction vehicle can be lowered and the tunnel or guard can be easily passed through, or the number of vehicles required for material transportation need not be increased.

    In the erection vehicle, a bridge module at the mounting position is lifted to form a space for receiving another bridge module, and a plurality of stacked bridge modules other than the lowest are lifted to the highest position. A lift device that enables only the lower bridge module to be mounted on the installation boom, a single or connected guide beam extension device that extends the guide beam module from the installation boom, and a single or connected Since the bridge body feeding device for feeding the bridge body module from the erection boom is provided, the work of connecting the modules to each other or the work of feeding the single or connected module can be performed efficiently. If the operation direction of the guide beam extension device and the bridge extension device is reversed, the guide beam module and the bridge module are lifted to the construction vehicle, and if the modules are connected, the connection is released efficiently. Can do.

    In addition, since the rear end of the bridge module or the connecting body having its tip landed is landed by the landing device, the landing work can be performed safely.

    (2) Since the erected vehicle has a self-propelled ability, it is possible to form a work team with only the erected vehicle and move freely. In addition, it is possible to improve the efficiency of the activity by organizing a team with erected vehicles having the same mobility.

    (3) Since the construction vehicle is connected to another vehicle having a self-propelling ability, the self-propelling vehicle itself can have a slim configuration without an engine for traveling. Moreover, it is also possible to move a plurality of construction vehicles by one self-propelled vehicle by connecting the construction vehicles.

    (4) Since the erection boom performs the function of a landing device, the erection boom is applied with a powerful power to support a large mass, and the tip is landed alone or connected. The rear end of the guide beam module or the single or connected bridge body module can be landed safely and reliably.

    (5) Since the guide beam feeding device or the bridge body feeding device is used to pull up the single or connected guide beam module or the single or connected bridge module to the construction vehicle, the temporary bridge is withdrawn. Work can be done efficiently.

    (6) Since it has a manipulator that lifts one end of a single or linked bridge module that is in the landing state and mounts it on the erection boom, it leaves the hard work to the manipulator and efficiently removes the temporary bridge with fewer people Can proceed.

    (7) Since the bridge module can be deformed by power in the direction of increasing the moment of inertia of the section, after landing both ends of the bridge module, the bridge module is deformed to increase the moment of inertia of the section. Can withstand the mass of the vehicle. Further, since the power required for the deformation is given from the power source on the construction vehicle side, it is easy to secure a large power, and the bridge module can be easily and quickly formed into the desired shape.

    (8) The bridge module can be deformed by power in the direction of increasing the moment of inertia of the cross section. After landing both ends of the bridge module, the bridge module is deformed to increase the moment of inertia of the cross section. Can withstand the mass of the vehicle. Moreover, since the power required for the deformation is given from the power source on the bridge body module side, the bridge body module can be easily and quickly formed into the desired shape even if the construction vehicle leaves the place.

    (9) Since the power source is of the energy storage type, the deformation work of the bridge body module can be performed silently without generating engine noise for power generation or power generation.

    (10) Since the bridge module has the form of an all-floor road whose entire width is the roadbed, even a small vehicle or a pedestrian can safely pass through.

    (11) Since the installation adjustment mechanism of the bridge module to be extended is provided on the installation car, when two installation cars are arranged in tandem in the front and rear, the bridge module is adjusted so that the course of the bridge module is not different between the front and rear. It is possible to smoothly move the bridge module between the installed vehicles.

    (12) Using the above-described erection device, placing the erection vehicle at the temporary bridge erection site, and the number of bridge modules stacked in a plurality of stages to the erection boom If there are multiple units, the step of connecting the bridge modules and connecting the guide beam modules, and feeding the single or connected guide beam module from the installation boom, A step of landing, a step of extending a single or connected bridge module from the erection boom, and entrusting the support of the bridge module to a single or connected guide beam module whose tip is in a landing state; To sequentially perform the steps of landing the rear end of a single or connected bridge module whose tip is in a landing state. Ri, it is possible to proceed reasonably safe erection work of the temporary bridge.

    (13) Using the erection device described in any one of (7) to (9), following the step (12), supplying power from a power source to increase the moment of inertia of the bridge module. By performing the step of deforming in the direction, the load bearing performance of the temporary bridge can be further enhanced.

    (14) In the erection apparatus as described above, two erection vehicles are used, and two erection vehicles are arranged in tandem at the temporary bridge erection location, and among the bridge modules stacked in a plurality of stages, The number required at the time is mounted on the construction boom of the construction vehicle to which each belongs, and when the number is plural, the step of connecting the bridge modules and the connection of the guide beam modules, A single or connected guide beam module is fed out from the installation boom of the front installation vehicle and the tip is landed, and a single or connected bridge module is extended from the installation boom of the front installation vehicle. Entrusting the support of this bridge module to a single or connected guide beam module whose tip is in a landing state, and where the tip is landing The step of landing the rear end of a single or concatenated Hashitai module in by sequentially performing, can proceed safely without force the erection work of the temporary bridge. Moreover, a long temporary bridge can be formed by connecting two bridge body modules.

    (15) Using the erection device described in any one of (7) to (9), following the step (14), supply power from a power source to increase the cross-sectional secondary moment of the bridge module. By performing the step of deforming in the direction, the load bearing performance of the temporary bridge can be further enhanced.

    (16) Using the erection device described in (6) above, in the step of (14), grasp the rear part of the erection vehicle in front with the manipulator of the erection vehicle in the rear, and adjust the alignment between the erection vehicles By performing this step, the path of the guide beam module or the bridge module is adjusted so as not to be different between the front and the back, and the transfer of the module between the front and rear installation vehicles can be smoothly advanced.

    (17) Using the erection device described in (11) above, in the step of (14), using one or both of the front erection vehicle and the rear erection vehicle alignment adjustment device, By carrying out the step of adjusting the alignment of the bridge module delivered from the erection vehicle and the bridge module delivered from the rear erection vehicle, the course of the bridge module is adjusted so that it does not differ from front to back. Modules can be transferred smoothly between installed vehicles.

    (18) Since a plurality of bridge body modules are stacked and mounted on the construction vehicle, it is possible to construct temporary bridges of different lengths by simply moving one construction vehicle. Since the construction vehicle has a telescopic guide beam, by extending this telescopic guide beam to reach the opposite shore, the telescopic guide beam can be transmitted to the opposite shore without causing the bridge module to fall into the cantilever state. be able to. Thereby, a bridge module can be constructed stably without difficulty. The telescopic guide beam is projected in a cantilever state, but this one is lighter than the bridge body module, so it does not destabilize the installation car.

    In addition, since the telescopic guide beam can be shortened when not in use, the total volume of the transported object including the bridge module and the telescopic guide beam can be reduced. As a result, there is an advantage that the height of the construction vehicle can be lowered and the tunnel or guard can be easily passed through, or the number of vehicles required for material transportation need not be increased.

    (19) In the above (18), since the erected vehicle has a self-propelled ability, the work group can be configured with a minimum knitting composed of only the erected vehicle and can be moved freely. In addition, it is possible to improve the efficiency of the activity by organizing a team with erected vehicles having the same mobility.

    (20) In the above (18), the construction vehicle is connected to another vehicle having self-propelling ability, so that the self-propelling vehicle can have a slim configuration without a traveling engine. Moreover, it is also possible to move a plurality of construction vehicles by one self-propelled vehicle by connecting the construction vehicles.

    (21) Since a plurality of bridge body modules are stacked on an erection vehicle and two such erection vehicles are used as a set, a long temporary bridge can be formed by linking the two bridge body modules. Of the two erected vehicles arranged in tandem in the front and back, the gate of the rear erection vehicle is raised, and the winch wire of the rear erection vehicle is connected to the bridge module through the pulley at the tip of the gate. A single or linked bridge module is controlled by the winch and is fed out from the front erection vehicle while controlling the posture. Therefore, the bridge module can be delivered while supporting the bridge module safely. Even a temporary bridge that is lengthened by connecting body modules can be constructed without problems.

    (22) In (21), since the erected vehicle has a self-propelled ability, a work group can be configured with a minimum knitting consisting only of the erected vehicle and can be moved freely. In addition, it is possible to improve the efficiency of the activity by organizing a team with erected vehicles having the same mobility.

    (23) In (21), since the installation vehicle is connected to another vehicle having self-propelling ability, the self-propelling vehicle can have a slim configuration without having an engine for traveling. Moreover, it is also possible to move a plurality of construction vehicles by one self-propelled vehicle by connecting the construction vehicles.

    Hereinafter, each embodiment of the present invention will be described with reference to FIGS.

    The erection device according to the first embodiment is shown in FIGS. 1 is a perspective view of an erected vehicle, FIG. 2 is a perspective view of an erected vehicle with a bridge module mounted, FIG. 3 is a perspective view of the bridge module, and FIG. 4 is a perspective view showing an example of connecting means between guide beam modules. FIG. 5 is a model diagram showing an example of connecting means between bridge modules.

    A construction vehicle 1 shown in FIG. 1 includes endless tracks 11 on the left and right sides of a main body 10 and has a self-propelled ability. An erection boom 20 is provided at the front center of the main body 10 so as to extend horizontally in the front-rear direction. The erection boom 20 is supported by the main body 10 via a stay 21 that rotates in a vertical plane, and can be moved back and forth (in the direction of arrow A in FIG. 1) and tilted in the back and forth direction (also in the direction of arrow B). .

    Hydraulic cylinders 22 are arranged on the left and right of the erection boom 20. The hydraulic cylinder 22 connects the main body 10 and the erection boom 20, and gives the erection boom 20 mainly movement in the front-rear direction.

    A hydraulic cylinder 23 is arranged on the lower surface of the front portion of the erection boom 20 (position before the stay 21). The hydraulic cylinder 23 connects the main body 10 and the erection boom 20, and mainly gives a tilting motion to the erection boom 20.

    A horizontal rail 25 is disposed behind the erection boom 20. The rail 25 has substantially the same cross section as the installation boom 20 when viewed from the front, and is aligned with the rear part of the installation boom 20 to form one continuous track together with the installation boom 20. The rail 25 is fixed to the main body 10.

    A plurality of pinions 30 are arranged on the left and right side surfaces of the erection boom 20 and the rail 25. The pinions 30 are arranged at predetermined intervals in the front-rear direction, and serve as a bridge body feeding device for feeding out a bridge body module described later. A motor that rotates the pinion 30 and a power transmission mechanism that transmits the motor power to each pinion 30 are not shown.

    A plurality of pinions 31 are arranged on the installation boom 20 and the rail 25 so as to be positioned on the respective center lines. The pinion 31 serves as a guide beam feeding device for feeding out a guide beam module described later. A motor that rotates the pinion 31 and a power transmission mechanism that transmits the motor power to each pinion 31 are not shown.

    A lift device 40 is disposed on the main body 10. The lift device 40 includes a pair of left and right outrigger beams 41 that can project from the side surface of the main body 10, and an elevator beam 43 that is connected to the upper surface of the outrigger beam 41 by a parallel link mechanism 42.

    The outrigger beam 41 is horizontally supported by a pair of front and rear slide beams 44 protruding to the side of the main body 10. The slide beam 44 is given a movement in the left-right direction (the direction of arrow C in FIG. 1) by a motor or a hydraulic mechanism (not shown).

    Each link, which becomes a rotation link in the parallel link mechanism 42, rotates in the direction of arrow D around a connection point with the outrigger beam 41 in a vertical plane parallel to the front-rear direction. As a result, the elevator beam 43 moves in parallel and changes its height while maintaining the level. The parallel link mechanism 42 moves in the direction of arrow D by pushing and pulling the connecting rod 45 connected to one of the rotating links with a hydraulic cylinder 46 installed on the outrigger beam 41.

    The elevator beam 43 has a protruding portion 43 a formed on the side surface of the main body 10 facing the center line direction. When the left and right outrigger beams 41 are brought close to each other at an appropriate height, an overhanging portion 43a enters under the bridge module described later. When the parallel link mechanism 42 is erected in this state, the bridge module is lifted. If the parallel link mechanism 42 is laid down to lower the bridge module and the left and right outrigger beams 41 are pushed outward, the overhanging portion 43a is detached from the bridge module. In this way, by combining the left-right movement of the outrigger beam 41 and the vertical movement of the parallel link mechanism 42, an arbitrary bridge module can be lifted or lowered.

    In FIG. 1, the slide beam 44 extends outward on the right side in the traveling direction of the main body 10 and the state where the parallel link mechanism 42 raises the elevator beam 43 is illustrated. Although the state in which the parallel link mechanism 42 is tilted and the elevator beam 43 is lowered is illustrated, this is only for explanation, and the left and right elevator beams 43 actually operate synchronously. That is, the left and right elevator beams 43 move symmetrically in the horizontal direction and move up and down in the vertical direction.

    An outrigger 50 that grounds and supports the main body 10 is provided at the front of the main body 10. The outrigger 50 is a rod-like member extending in the left-right direction, and is connected to the main body 10 via a pair of left and right hydraulic cylinders 51. The left and right hydraulic cylinders 51 are controlled independently of each other so that the left and right inclination of the main body 10 can be adjusted.

    In addition to the outrigger 50, a pair of manipulators 60 are provided at the front portion of the main body 10. The manipulator 60 is a vertical articulated robot arm and operates hydraulically. The manipulator 60 is used to lift the bridge module, but is also used to grasp the main body 10 of another construction vehicle 1. For this purpose, a grip bar 12 that is held by a manipulator 60 of another installed vehicle is fixed to the rear portion of the main body 10 of each installed vehicle 1.

    In the construction vehicle 1, two bridge body modules 70 having substantially the same width as the main body 10 are stacked and mounted in two stages. The bridge module 70 is, for example, a flat box-like structure made of a metal material such as an aluminum alloy or a steel plate, a composite material containing a resin, or the like, and has a form of an all-floor road whose entire width is a road bed. On the lower surface, a downward groove 71 is provided along the center line. The groove 71 receives the erection boom 20 and the rail 25, and a rack 72 that meshes with the pinion 30 is formed on the side edge.

    A guide beam module 80 is inserted into the groove 71. One guide beam module 80 is arranged for each bridge module 70. The cross-sectional shape viewed from the front of the guide beam module 80 is rectangular, and the flange 81 projects from the left and right sides of the upper surface. Inside the groove 71, there are provided a roller 73 that supports the guide beam module 80 by engaging with the lower surface of the flange 81, and a needle-like roller 74 that contacts the upper surface of the guide beam module 80 and supports the bridge module 70 itself. . With such a support structure, the guide beam module 80 can slide in the longitudinal direction of the bridge module 70 and can be detached from the bridge module 70. A rack (not shown) that engages with the pinion 31 is formed on the lower surface of the guide beam module 80.

    The masses of the bridge module 70 and the guide beam module 80 are supported by the erection boom 20 or the rail 25, and the pinions 30 and 31 are not involved in load support.

    The bridge module 70 needs to be connected with each other, and the guide beam module 80 needs to be connected with each other with the guide beam modules. An example of the connection structure is shown in FIG. This causes the joint piece 82 to protrude from both ends of each guide beam module 80, inserts its own joint piece 82 into another guide beam module, and also receives the joint piece 82 of the other guide beam module, It is restrained by a latch mechanism so as not to come off.

    A connecting mechanism 75 shown in FIG. 5 can be used for connecting the bridge modules 70 to each other. The connecting mechanism 75 includes a ring 76 and a bar 77 that enters the ring 76. An opening portion 78 through which the bar 77 passes is formed in a part of the ring 76, and a stopper 79 that prevents the bar 77 from escaping is provided in the opening portion 78. The stopper 79 is urged from the inside of the ring 76 to the solid line position by a spring (not shown) and can be pushed into the broken line position. If the bar 77 and the stopper 79 are pressed together, the bar 77 pushes the stopper 79 and enters the ring 76. After the bar 77 has passed, the stopper 79 returns to the solid line position, and thereafter the bar 76 does not escape from the ring 77 unless the stopper 79 is pushed into the broken line position.

    For the connection between the guide beam modules 80 and the bridge body modules 70, in addition to the above-mentioned connection mechanism, other connection mechanisms generally used in mechanical devices can be used. Of course, it is necessary to provide the necessary strength. However, as long as the condition is satisfied, it is desirable that the structure be easily removable without using a special tool.

    In order to make it easy for the endless track and the wheels to ride on the bridge module 70, slope blocks 90 having side-surface triangular shapes are attached to both ends of the bridge module 70 (see FIG. 3). The bridge module 70 and the slope block 90 are connected by a hinge portion 91 and can be folded. At both ends of the bridge module 70, cut portions 92 for receiving the slope blocks 90 are formed. The side cross-sectional shape of the cut portion 92 is a triangle. Therefore, the bridge module 70 in a state in which the slope block 90 is folded has a flat rectangular parallelepiped shape.

    When the bridge body module 70 is placed on the ground and the slope block 90 is opened outward, the slope of the slope block 90 and the slope of the cut portion 92 form one continuous slope. From this slope, the endless track or wheel can be easily ridden on the bridge module 70.

    The bridge module 70 can be deformed in the direction of increasing the moment of inertia of the cross section, similarly to the bridge module described in Patent Document 5. The deformation is brought about by a power actuator such as a hydraulic cylinder or an electric jack built in the bridge module 70. Power necessary for the deformation of the bridge module 70 is supplied from a power source on the main body 10 side.

    Subsequently, a construction method for a temporary bridge using the construction device according to the first embodiment will be described.

    First, the construction work performed using one construction vehicle 1 will be described with reference to FIGS. 6 to 14 are side views for explaining a series of operations.

    First, the erection vehicle 1 in which two bridge body modules 70 are stacked in two stages is arranged at a temporary bridge erection location (FIG. 6). The installation place of the construction vehicle 1 is one shore 101 of a river or a space, and a temporary bridge is built from here to the other shore 102. The distance between the shores 101 and 102 is shorter than the length of connecting two bridge body modules 70. In the figure, for convenience of explanation, identification codes “1” and “2” are attached to the two bridge body modules 70.

    When the position of the erection vehicle 1 is determined, the outrigger 50 that has been lifted is lowered and grounded while traveling, and the erection vehicle 1 is used as a support for preventing the erection vehicle 1 from turning forward and from tilting left and right. Then, the hydraulic cylinders 22 and 23 are controlled to push the erection boom 20 forward while keeping the level.

    Subsequently, the upper bridge body module 70 is lifted together with the guide beam module 80 by the lift device 40 (FIG. 7). By inserting the protruding portion 43a of the elevator beam 43 under the upper bridge module 70 (identification code “2”) and rotating the parallel link mechanism 42, the upper bridge module 70 can be raised.

    When the upper bridge module 70 is separated from the lower bridge module 70 (identification code “1”), the lower bridge module 70 and the lower bridge are moved by the bridge feeder and guide beam feeders (pinions 30 and 31). The guide beam module 80 is sent out onto the erection boom 20. If it goes too far, the bridge module 70 and the guide beam module 80 fall from the erection boom 20, and are temporarily stopped before the fall. The positions of the bridge module 70 and the guide beam module 80 may be monitored with sensors, and if it is likely to go too far, the rotation of the pinions 30 and 31 may be forcibly stopped.

    When the movement of the lower bridge module 70 and the lower guide beam module 80 stops, the rear ends of the lower bridge module 70 and the lower guide beam module 80 are the upper bridge module 70 and the upper guide beam module. It is in a position advanced from the front end of 80. Here, the lift device 40 is operated to lower the upper bridge module 70 and the upper guide beam module 80 behind the lower bridge module 70 and the lower guide beam module 80 (FIG. 8). The front and rear bridge module 70 and the front and rear guide beam modules 80 are connected to each other.

    Subsequently, the coupled body of the guide beam module 80 is unwound from the coupled body of the bridge body module 70 by the guide beam feeding device (pinion 31) (FIG. 9). Although the coupling body of the guide beam module 80 protrudes in a cantilever state, it is lighter than the bridge body module 70, so that the construction vehicle 1 is not unstable.

    When the tip of the coupling body of the guide beam module 80 reaches the shore 102, the rotation of the pinion 31 is stopped (FIG. 10). Then, the hydraulic cylinder 23 is controlled to incline the erection boom 20 and land the tip of the coupling body of the guide beam module 80 on the shore 102 (FIG. 11).

    Subsequently, the bridge body module 70 is fed onto the guide beam module 80 via the bridge body feeding device (pinion 30). Eventually, the connection of the bridge module 70 is entrusted to the connection of the guide beam module 80. Since both ends of the connecting body of the guide beam module 80 are supported by the shore 102 and the erection boom 20, the mass of the connecting body of the bridge module 70 can be sufficiently supported. The connecting body of the bridge module 70 advances along the connecting body of the guide beam module 80 until the tip ends on the shore 102 (FIG. 12).

    A plurality of pinions 30 are removed from the connecting body of the bridge module 70 in order from the rear, and a plurality of pinions 31 are also removed from the connecting body of the guide beam module 80 in order from the rear, but the tip of the installation boom 20 is Until the end, the engagement with the coupling body of the guide beam module 80 and the coupling body of the bridge body module 70 is maintained. Here, the hydraulic cylinders 22 and 23 are controlled to further tilt the erection boom 20, and the rear end of the connecting body of the bridge body module 70 and the connecting body of the guide beam module 80 is landed on the shore 101 (FIG. 13).

    Making the erection boom 20 play the role of a landing device has the following advantages. That is, a powerful power is applied to the erection boom 20 to support a large mass. Therefore, the tip of the connecting body of the bridge body module 70 and the connecting body of the guide beam module 80 do not fall suddenly against the mass of the connecting body of the bridge body module 70 and the connecting body of the guide beam module 80, and the connecting body of the bridge body module 70 and the connected body of the guide beam module 80 are You can land without giving. Accordingly, the bridge body module 70 and the guide beam module 80 do not have a problem due to the impact at the time of landing.

    When the connecting body of the bridge module 70 is bridged between the shores 101 and 102, power such as hydraulic pressure and electric power is supplied from the power source on the construction vehicle 1 side to deform the bridge module 70 in the direction of increasing the moment of inertia of the cross section. (FIG. 14). Although it is convenient to supply power from the erection boom 20, it may be performed by pulling out a hydraulic hose or a power cable from the main body 10. By supplying power from the power source on the construction vehicle 1 side in this way, large power can be supplied, and the bridge module 70 can be easily and quickly formed into the desired shape.

    When the bridge module 70 is deformed into a predetermined shape, the power supply is stopped. For the power actuator for deformation, select one that can maintain the posture at that time even if power supply stops.

    After the power supply unit is separated from the bridge module 70, the slope blocks 90 at the front and rear ends of the connecting body of the bridge module 70 are opened outward to form an endless track and a slope on which the wheel can be climbed. With this, the temporary bridge 200 is completed. Thereafter, the vehicle that needs to cross the construction vehicle 1 and the shore 102 sequentially passes through the temporary bridge 200 to the shore 102. Since the bridge module 70 has the form of an all-floor road in which the entire width becomes the roadbed, small vehicles and pedestrians can also safely cross over. The operation of opening the slope block 90 to the outside may be performed manually or remotely by power supplied from the power source on the construction vehicle 1 side. In this case, an unfolding drive mechanism using an actuator such as a hydraulic pressure or a motor is mounted on the bridge body module 70 side for unfolding the slope block.

    Next, the removal work of the temporary bridge 200 will be described with reference to FIGS. 15 to 18 are side views for explaining a series of operations.

    First, the construction vehicle 1 is moved closer to the temporary bridge 200 (FIG. 15). The direction of the erection vehicle 1 is opposite to that when erection.

    The construction vehicle 1 is positioned at a predetermined position, and the outrigger 50 is grounded. On the temporary bridge 200 side, the slope block 90 projecting back and forth is folded. Then, the erection boom 20 is connected to the bridge module 70 on the near side (FIG. 16). In this setting, power for deforming the bridge module 70 is supplied from the erection boom 20. The power actuator is reversely operated to return the bridge module 70 to the state before deformation (FIG. 17). The operation of folding the slope block 90 may be performed manually, or may be performed remotely by supplying power from the power source on the construction vehicle 1 side to the above-described deployment drive mechanism.

    When the bridge module 70 becomes flat, the manipulator 60 lifts the ends of the bridge module 70 connection body and the guide beam module 80 connection body and mounts them on the erection boom 20 (FIG. 18). When the connection body of the bridge body module 70 and the connection body of the guide beam module 80 are lifted by human power, a large number of personnel are required. If the lift is performed using the manipulator 60 in this way, one or two operators are required. All you need is enough.

    When the connecting body of the bridge body module 70 and the connecting body of the guide beam module 80 are mounted on the installation boom 20, the rack 72 of the bridge body module 70 is engaged with the pinion 30, and the rack of the guide beam module 80 is engaged with the pinion 31. To. When the pinions 30 and 31 are rotated in this manner, the connection body of the bridge module 70 and the connection body of the guide beam module 80 are pulled up to the erection boom 20. By using the power of the bridge body feeding device (pinion 30) and the guide beam feeding device (pinion 31) in this way, the lifting can be efficiently advanced.

    While pulling up the connecting body of the bridge body module 70 and the connecting body of the guide beam module 80, the angle of the erection boom 20 is returned to the horizontal, and the connecting body of the bridge body module 70 and the connection body of the guide beam module 80 are connected to the rail 25. Be supported by.

    When the connecting body of the bridge body module 70 and the connecting body of the guide beam module 80 come to predetermined positions, the rotation of the pinions 30 and 31 is stopped. Then, the connection between the bridge modules 70 and the connection between the guide beam modules 80 are removed, and one guide beam module 80 is stored in one bridge module 70. It is preferable to fix the bridge body module 70 and the guide beam module 80 with appropriate fixing means so that the guide beam module 80 does not jump out carelessly.

    Thereafter, the bridge module 70 (identification code “1”) to be on the upper stage side is lifted by the lift device 40 together with the guide beam module 80, and the bridge module 70 ( A space for receiving the identification code “2”) is formed. In this way, the pinions 30 and 31 are driven, and the lower bridge module 70 and the guide beam module 80 are sent under the upper bridge module 70. Then, the upper bridge module 70 is lowered and stacked on the lower bridge module 70. The vertical relationship between the two bridge modules will be reversed.

    The construction boom 20 at the forward position is pulled back, the outrigger 50 is pulled up, and the construction vehicle 1 is started toward the next destination.

    If the distance between the shores 101 and 102 is narrow enough to be covered by one bridge module 70, one bridge module 70 and one guide beam module 80 therein are used. Similarly, the temporary bridge 200 is constructed and withdrawn.

    Now, in the configuration in which two bridge modules are mounted on one erection vehicle, the river and the space that can be erected on the temporary bridge are limited to narrow ones to some extent. However, if a large number of bridge modules are mounted on one erection vehicle to enable a long temporary bridge, the mobility of the erection vehicle 1 is sacrificed this time.

    Therefore, a long temporary bridge is obtained by using a plurality of erection vehicles and connecting the bridge modules mounted on each erection vehicle, and the number of bridge modules mounted on each erection vehicle is not so large. The construction method that can ensure the mobility of the car will be explained. Here, it is assumed that two erection vehicles 1 equipped with two bridge body modules 70 are used in combination. In practice, this combination is considered to be efficient. The working procedure is shown in the side views of FIGS.

    First, two erection vehicles 1 in which two bridge body modules 70 are stacked in two stages are arranged at a temporary bridge erection location (FIG. 19). The installation place of the construction vehicle 1 is one shore 101 of a river or a space, and a temporary bridge is built from here to the other shore 102. The distance between the shores 101 and 102 is shorter than the length in which four bridge body modules 70 are connected. In the figure, for convenience of explanation, identification codes “1”, “2”, “3”, and “4” are assigned to the four bridge module 70 in total.

    Two erection vehicles 1 are arranged in tandem at the front and back. Since the bridge module 70 and the guide beam module 80 are fed from the rear installation vehicle 1 to the front installation vehicle 1, the installation boom 20 of the rear installation vehicle 1 and the rail 25 of the front installation vehicle 1 are aligned in a straight line. It is necessary to be out. Since it is often difficult to align the front and rear erection vehicles 1 by relying only on the driver's maneuvering skill, the manipulator 60 is used to adjust the alignment between the erection vehicles 1. That is, the grip bar 12 of the front installation vehicle 1 is grasped by the manipulator 60 of the rear installation vehicle 1 (FIG. 20). Then, the manipulator 60 is expanded and contracted so that the two erected vehicles 1 are correctly aligned in the front-rear direction.

    When the positions of the two erection vehicles 1 are determined, the outriggers 50 of the erection vehicles 1 are grounded. Then, the erection boom 20 of the erection vehicle 1 in the front is pushed forward while keeping the level. The erection boom 20 of the rear erection vehicle 1 is also moved forward and connected to the rail 25 of the front erection vehicle 1 (FIG. 21).

    Subsequently, in the front erected vehicle 1, the upper bridge body module 70 (identification code “2”) is lifted together with the guide beam module 80 by the lift device 40 (FIG. 22). When the upper bridge module 70 is separated from the lower bridge module 70 (identification code “1”), the lower bridge module 70 and the lower guide beam module 80 are sent out onto the installation boom 20. Then, the upper bridge module 70 and the upper guide beam module 80 are lowered behind the lower bridge module 70 and the lower guide beam module 80, and the front and rear bridge modules 70 and the front and rear guide beam modules 80 are connected. (FIG. 23). A space for receiving the bridge body module 70 and the guide beam module 80 of the rear installation vehicle 1 by sending the connection body of the bridge body module 70 (identification symbols “1” and “2”) and the connection body of the guide beam module 80 slightly forward. Make.

    Also in the rear installation vehicle 1, the upper bridge module 70 (identification code “4”) is lifted together with the guide beam module 80 by the lift device 40, and the lower bridge module 70 (identification code “3”) and the lower stage side are lifted. The guide beam module 80 is sent out onto the erection boom 20. The lower bridge module 70 (identification code “3”) and the lower guide beam module 80 enter the front construction vehicle 1 through the construction boom 20 and are connected to the front bridge module module 70 (identification code “1”). ”“ 2 ”) and the guide beam module 80 assembly. Thereafter, the upper bridge module 70 (identification code “4”) and the upper guide beam module 80 are lowered. When a total of four bridge body modules 70 and guide beam modules 80 are aligned, the front and rear bridge body modules 70 and the front and rear guide beam modules 80 are all connected (FIG. 24).

    Subsequently, the connection body of the four bridge body modules 70 and the connection body of the four guide beam modules 80 are sent forward. In order to prevent the connecting body of the connecting body guide beam module 80 of the bridge body module 70 from falling from the erection boom 20 of the erection vehicle 1 in front, the feed is temporarily stopped before the tumbling (FIG. 25).

    And the connection body of the four guide beam modules 80 is drawn out from the connection body of the bridge body module 70 (FIG. 26).

    When the leading end of the coupling body of the guide beam module 80 reaches the shore 102, the feeding of the guide beam module 80 is stopped (FIG. 27). Then, the erection boom 20 of the erection vehicle 1 in front is tilted, and the leading end of the coupling body of the guide beam module 80 is landed on the shore 102 (FIG. 28).

    In this way, the connection body of the bridge body module 70 is sent out onto the connection body of the guide beam module 80 (FIG. 29). The connecting body of the bridge module 70 advances along the connecting body of the guide beam module 80 until the tip ends on the shore 102 (FIG. 30).

    When the front end of the connecting body of the bridge module 70 lands on the shore 102, the construction boom 20 of the construction vehicle 1 ahead is further tilted, and the connecting body of the bridge module 70 and the rear end of the connecting body of the guide beam module 80 are connected to the shore. 101 is landed (FIG. 31).

    When the connecting body of the bridge module 70 is bridged between the shores 101 and 102, the bridge module 70 is supplied with power such as hydraulic pressure and electric power from the power source on the front construction vehicle 1 side to increase the cross-sectional secondary moment. (FIG. 32).

    When the bridge module 70 is deformed into a predetermined shape, the power supply is stopped. After the power supply unit is separated from the bridge module 70, the slope blocks 90 at the front and rear ends of the connecting body of the bridge module 70 are opened outward to form an endless track and a slope on which the wheel can be climbed. This completes the temporary bridge 200 (FIG. 33). The rear construction vehicle 1 separates the manipulator 60 from the front construction vehicle 1. Thereafter, vehicles and pedestrians that need to cross the construction vehicle 1 and the shore 102 cross the shore 102 sequentially through the temporary bridge 200. The operation of opening the slope block 90 to the outside may be performed manually or remotely by power supplied from the power source on the construction vehicle 1 side. In this case, an unfolding drive mechanism using an actuator such as a hydraulic pressure or a motor is mounted on the bridge body module 70 side for unfolding the slope block.

    Next, the removal work of the temporary bridge 200 will be described with reference to FIGS. 34 to 38 are side views for explaining a series of operations.

    First, the two construction vehicles 1 are brought close to the temporary bridge 200 (FIG. 34). The direction of the erection vehicle 1 is opposite to that when erection.

    Two erection vehicles 1 are arranged in tandem at the front and back. Then, the grip bar 12 of the front erection vehicle 1 is grasped by the manipulator 60 of the rear erection vehicle 1, and the alignment of the erection vehicles 1 is adjusted. When the positions of the two construction vehicles 1 are determined, the outriggers 50 are grounded. Further, the erection boom 20 of the rear erection vehicle 1 is moved forward to be connected to the rail 25 of the front erection vehicle 1. On the temporary bridge 200 side, the slope block 90 projecting back and forth is folded. Then, the erection boom 20 of the erection vehicle 1 in front is connected to the bridge module 70 on the near side (FIG. 35). Then, the power actuator is reversely operated to return the bridge module 70 to the state before deformation (FIG. 36). The operation of folding the slope block 90 may be performed manually, or may be performed remotely by supplying power from the power source on the construction vehicle 1 side to the above-described deployment drive mechanism.

    When the bridge module 70 becomes flat, the manipulator 60 of the front erection vehicle 1 lifts the ends of the connection body of the bridge module 70 and the guide beam module 80 (FIG. 37), and the erection of the front erection vehicle 1 is performed. It is mounted on the boom 20 for use (FIG. 38). Then, the connection body of the bridge body module 70 and the connection body of the guide beam module 80 are pulled up. On the way, the bridge body modules 70 and the guide beam modules 80 are disconnected from each other, and one guide beam module 80 is stored in one bridge body module 70. Then, the bridge body modules 70 are stacked on each erected vehicle 1 in two steps.

    Thereafter, the manipulator 60 of the rear erection vehicle 1 that has grasped the front erection vehicle 1 is released, and the erection boom 20 that has been advanced in each of the front and rear erection vehicles 1 is pulled back, and the outrigger 50 is raised. Then, each erection vehicle 1 is started toward the next destination.

    In the above description, all four bridge modules 70 are used to form the temporary bridge 200. However, depending on the distance between the shores 101 and 102, only three bridge modules 70 may be used to form a temporary bridge. You can also.

    In the drawings so far, when the bridge module 70 is deformed in the direction of increasing the moment of inertia of the cross section, the bridge module 70 is illustrated as being deformed into a truss bridge shape. This is the same method as the method described in Patent Document 5, but the bridge module can be modified by another method. This is shown in FIGS.

    FIG. 39 is a perspective view of the bridge body module, and FIG. 40 is a partially enlarged perspective view of the bridge body module, in which a part is cut away to show the internal mechanism. Since only the outline of the mechanism for deforming in the direction of increasing the moment of inertia is shown, the guide beam module and its receiving structure are omitted.

    A bridge module 110 shown in FIG. 39 includes a lower unit 111 and an upper unit 112 covering the lower unit 111. A plurality of vertical ribs 113 are formed on the outer surface of the lower unit 111 at predetermined intervals, and a plurality of grooves 114 for receiving the ribs 113 are formed on the inner surface of the upper unit 112 at predetermined intervals. By engaging the rib 113 and the groove 114, the lower unit 111 and the upper unit 112 are coupled to be slidable in the vertical direction.

    Foldable slope plates 120 are attached to both ends of the upper unit 112. On the other hand, on the upper surface of the lower unit 111, a shaft 130 is arranged along the center line. The shaft 130 is rotatably supported by the bearing 131, and its end protrudes outward from a vertical slot 115 formed in the upper unit 112. A spline joint 132 is fixed to the end of the shaft 130. The spline joint 132 is a male side at one end of the shaft 130 and a female side at the other end. The slope plate 120 is provided with a window 121 through which the spline joint 132 is exposed.

    A worm 133 is fixed to the shaft 130 inside the lower unit 111. A worm gear 134 meshes with the worm 133. The worm gear 134 moves the vertical jack shaft 135 supported by the lower unit 111 up and down. The upper end of the jack shaft 135 is connected to the upper unit 112, and when the shaft 130 is rotated, the upper unit 112 moves up and down. When the upper unit 112 rises and the bridge module 110 becomes taller, the secondary moment of the cross section of the bridge module 110 increases.

    When connecting a plurality of bridge body modules 110, the male side spline joint 132 of one bridge body module 110 is connected to the female side spline joint 132 of the other bridge body module 110. As a connecting mechanism of the bridge module 110, the same mechanism as that used in the bridge module 70 can be adopted.

    The construction vehicle 1 is provided with a power shaft, and a spline joint is fixed to the end thereof. By connecting this spline joint to the spline joint 132 at the end of the row of shafts 130, power can be supplied from the construction vehicle 1 to the bridge module 110.

    An example of another jack mechanism is shown in FIG. FIG. 41 is a perspective view showing only the skeleton of the jack mechanism.

    The jack mechanism of FIG. 41 includes a plurality of jack blocks 140 arranged along the longitudinal direction of the bridge module 110. Each jack block 140 is connected to the lower unit 111 by a pair of left and right links 141. Two adjacent jack blocks 140 are used as a set. One screw shaft 142 penetrates all the jack blocks 140. Spline joints 132 are fixed to both ends of the screw shaft 142.

    The screw shaft 142 is formed with a male screw, and the jack block 140 is formed with a female screw. However, the direction of the screw spiral is opposite for each of the jack blocks 140 in a pair. That is, one jack block 140 has a left-hand thread, and the other jack block 140 has a right-hand thread. For this reason, when the screw shaft 142 is rotated, the two jack blocks 140 approach each other as shown by the arrows in FIG.

    When the two jack blocks 140 approach each other, the angle formed by the links 141 belonging to them becomes sharp. That is, the jack block 140 moves up.

    If the two jack blocks 140 are separated, the angle formed by the links 141 belonging to them becomes obtuse. That is, the jack block 140 is lowered.

    Since the upper unit 112 is supported by the jack block 140, the upper unit 112 can be moved up and down by rotating the screw shaft 142.

    As a power source for deforming the bridge body module 70 in the direction of increasing the moment of inertia of the cross section, not a power source of a type that generates power on the spot (an engine or a hydraulic pump or a generator driven by the engine) but an energy source. A storage-type power source can also be used. Examples of energy storage type power sources include those that mechanically store energy, such as torsion bars, leaf springs, coil springs, etc., those that store energy electrically, such as capacitors, and electricity, such as batteries. Examples include those that store energy chemically. A cylinder filled with compressed air can also be used.

    If the power source is of the energy storage type as described above, the deformation work of the bridge module 70 can be performed silently without generating engine noise for power generation or power generation.

    A power source for deforming the bridge module 70 in the direction of increasing the moment of inertia of the cross section can be arranged not on the construction vehicle 1 side but on the bridge module 70 itself side. If it does in this way, even if the construction vehicle 1 leaves the place, the bridge body module 70 can be made into the expected shape easily and rapidly.

    Next, other embodiments of the erection device will be described.

    42 and 43 show a construction apparatus according to the second embodiment. 42 is a perspective view of the erected vehicle with the bridge module mounted, and FIG. 43 is a perspective view of the erected vehicle of FIG. 42 as viewed from the front.

    The terrain of the temporary bridge construction site varies, and when two erection vehicles are arranged in tandem in front and back, alignment adjustment by a manipulator may not be sufficient. 42 and 43 show a construction vehicle in which the width of front and rear alignment adjustment is widened. Since only the outline of the alignment adjustment mechanism is shown, accessories such as a construction boom, a rail, a lift device, an outrigger, and a manipulator are omitted.

    42 and 43 has a slide table 302 that can be shifted left and right on a self-propelled main body 301. The slide table 302 supports the tilting table 303, and the bridge module 304 is mounted on the tilting table 303. The tilting table 303 can change the pitch angle and the roll angle with respect to the slide table 302. The first hydraulic cylinder 305 changes the pitch angle, and the second hydraulic cylinder 306 changes the roll angle. The slide table 302 is shifted left and right by an actuator (not shown). By combining the movement of the slide table 302 and the movement of the tilting table 303, the bridge module 304 can take various postures.

    An erection boom is provided on the slide table 302 so that even if the slide table 302 is shifted, the bridge module 304 and the erection boom alignment state are not affected. Also, the roll boom can be made variable.

    If two of the above-described construction vehicles 300 are arranged in tandem in the front and rear, even if the postures of the main bodies 301 of the front and rear construction vehicles 300 are not aligned due to the undulation of the ground, the bridge module 304 of the rear construction vehicle 300 is It can be sent to the front construction vehicle 300 so that the alignment with the bridge body module 304 of the front construction vehicle 300 is established.

    FIG. 44 shows a construction device according to the third embodiment. FIG. 44 is a perspective view of the erected vehicle with the bridge module mounted. As in the second embodiment, accessories such as a boom for construction, a rail, a lift device, an outrigger, and a manipulator are omitted.

44 has a tilting table 313 mounted on a self-propelled main body 311 via a parallel link mechanism 312 having six degrees of freedom (X, Y, Z and φ _X , φ _Y , φ _Z ). The bridge module 304 having the same shape as that of the second embodiment is mounted on the tilting table 313. The erection boom is similarly supported by a parallel link mechanism, giving six degrees of freedom.

    If two of the above-described construction vehicles 310 are arranged in tandem in the front and rear, even if the postures of the main bodies 311 of the front and rear construction vehicles 310 are not aligned due to the undulation of the ground, the bridge module 304 of the rear construction vehicle 310 is It can be sent to the front construction vehicle 310 so that the alignment with the bridge body module 304 of the front construction vehicle 310 is established. By using the parallel link mechanism, the fine adjustment of the alignment is easy and the time required for the fine adjustment can be greatly shortened.

In the second embodiment and the third embodiment, the alignment adjustment mechanism has a configuration with a high degree of freedom. However, in consideration of the size and other restrictions, a mechanism with a lower degree of freedom (for example, any of φ _X , φ _Y , φ _Z ) It is also possible to set only one of them to be controlled or use an XZ slide table.

    An example of a mechanism with such a low degree of freedom is shown in FIGS. 45-49 as 4th Embodiment. FIG. 45 is a perspective view of a construction vehicle mounted with a bridge module, and FIGS. 46 to 49 are front views showing a series of alignment adjustment procedures. Accessories such as a boom for construction, a rail, a lifting device, and a manipulator are omitted.

    The erection vehicle 320 of the fourth embodiment mounts a bridge body module 304 having the same shape as that of the second embodiment on a self-propelled main body 321. A pair of front and rear outriggers 322L protrude from the left side surface of the main body 321. A pair of front and rear outriggers 322 </ b> R protrude from the right side surface of the main body 321. Each of the outriggers 322L and 322R can extend the support leg 323 downward. In addition, the left outrigger 322L in and out, the right outrigger 322R in and out, and the expansion and contraction of the support leg 323 in the left outrigger 322L and the expansion and contraction of the support leg 323 in the right outrigger 322R are controlled independently.

    When two erection vehicles are arranged in tandem in the front and rear, and one erection vehicle is shifted laterally to be aligned with the other erection vehicle, the erection vehicle 320 of the fourth embodiment shifts as follows. Can be realized.

    In FIG. 46, it is assumed that the construction car 320 is to be shifted to the right. The outriggers 322L and 322R are projected to the side of the main body 321 and the support leg 323 is grounded. At this time, the outrigger 322L protrudes larger than the outrigger 322R.

    Here, the support leg 323 is extended and the main body 321 is lifted (FIG. 47).

    Then, more outriggers 322 </ b> R protrude out of the main body 321, and the outriggers 322 </ b> L are retracted into the main body 321. As a result, the main body 321 is shifted to the right with respect to the ground (FIG. 48).

    Finally, the support leg 323 is contracted, and the main body 321 is lowered to the ground (FIG. 49).

    In the case of the fourth embodiment, since there is no need to mount a special left / right slide mechanism on the main body 321, the number of parts does not increase. In addition, since the left / right slide mechanism is not interposed between the main body 321 and the bridge body module 304, the overall height of the construction vehicle 320 can be kept low.

    Further, in the case of the fourth embodiment, when the ground is tilted to the left and right, it is possible to correct the tilt by changing the degree of protrusion of the support leg 323 between the outrigger 322L and the outrigger 322R. If it is possible to vary the degree of protrusion of the support leg 323 between the front and rear outriggers 322L and between the front and rear outriggers 322R, tilt correction when the ground is tilted back and forth is also possible.

    As in the second, third, and fourth embodiments, when the alignment adjustment is performed by arranging two tandem vehicles arranged in the front and rear in a tandem arrangement with the bridge body alignment adjustment mechanism, only the front or rear alignment adjustment mechanism is used. The alignment adjustment can be performed by using both, and the alignment adjustment can be performed by using both the front and rear alignment adjustment mechanisms. The alignment adjustment step is performed after the step of placing two erection vehicles in tandem in front and back and before the step of mounting the bridge module on the erection boom.

    50 and 51 show the erection device according to the fifth embodiment. FIG. 50 is a side view of a construction vehicle mounted with a bridge module, and FIG. 51 is a top view. Since it is only intended to give an overview of the mechanism, accessories such as lift devices, outriggers, and manipulators are omitted.

    A construction vehicle 330 according to the fifth embodiment includes a tilting table 332 on a self-propelled main body 331. The tilting table 332 can tilt forward with the rear end as a fulcrum. An extendable guide beam 333 is provided on the tilting table 332. The telescopic guide beam 333 has a pantograph structure. Two bridge body modules 334 are mounted on the construction car 330 in two upper and lower stages. The bridge body module 334 has a structure in which the guide beam module 80 is removed from the bridge body module 70 of the first embodiment.

    The temporary bridge construction work using the construction vehicle 330 is as follows. First, an erection vehicle 330 in which two bridge body modules 334 are stacked in two stages is arranged at a temporary bridge erection location. At this time, the telescopic guide beam 333 is in a contracted state. After determining the position of the erection vehicle 330, the outrigger that has been pulled up is lowered and grounded while traveling, and the erection vehicle 330 is used as a support for preventing the erection vehicle 330 from turning forward and tilting left and right.

    Subsequently, the telescopic guide beam 333 is extended to a predetermined length. The length is determined based on the distance to the opposite bank.

    When using both of the bridge module 334, first, the lower bridge module 334 is mounted on the telescopic guide beam 333 and pushed out, and then the upper bridge module 334 is mounted on the telescopic guide beam 333. To do. Then, both bridge body modules 334 are connected.

    Next, the tilting table 332 is tilted to land the tip. Then, the connection body of the bridge body module 334 is sent out, and the support of the connection body of the bridge body module 334 is entrusted to the telescopic guide beam 333. In this state, the connecting body of the bridge module 334 is advanced and the tip is landed.

    When the tip of the connecting body of the bridge module 334 has landed, the telescopic guide beam 333 is contracted. When the tip of the telescopic guide beam 333 is about to come off from the connecting body of the bridge module 334, the tilting table 332 is deepened forward and the rear end of the connecting body of the bridge module 334 is landed. Then, the telescopic guide beam 333 is further contracted and completely pulled out from the bridge body module 334. Thereafter, the procedures for deforming the bridge module 334 in the direction of increasing the moment of inertia of the cross section and forcing the slope blocks at both ends of the connection body of the bridge module 334 outward are the same as in the first embodiment.

    Of course, it is also possible to form a temporary bridge using only one bridge module 334. Further, the telescopic structure of the telescopic guide beam 333 may be a telescope system instead of a pantograph system.

    The erection device according to the sixth embodiment is shown in FIGS. 52 is a side view showing the work situation of the temporary bridge construction, FIG. 53 is a side view of the bridge body module, FIG. 54 is a front view of the gate provided in the construction vehicle, and FIG. It is a top view which shows the state which carried out. Since the purpose is only to show the outline of the mechanism, the lift device and the like are omitted.

The construction vehicle 340 of the sixth embodiment has a gate 350 at one end of the upper surface of the self-propelled main body 341. The gate 350 can be rotated in a vertical plane and can be in an upright state or a lying state. The hydraulic cylinder 351 rotates the gate 350. The other end of the erection vehicle 340 is provided with a bridge body feeding device 342 and an outrigger 343 for sending out a bridge body module described later.

    Two bridge body modules 360 are mounted on one erection vehicle 340. The bridge module 360 has the same structure as the bridge module 70 of the first embodiment except that it does not have a guide beam module, and includes slope blocks 361 at both ends (see FIG. 53).

    An opening 352 through which the bridge module 360 is passed is formed in the gate 350 (see FIG. 54). Two right and left alignment rollers 353 are provided on both sides of the opening 352. A pair of left and right pulleys 354 is attached to the tip of the gate 350. The pulley 354 is for guiding a wire 345 extending from a winch 344 provided on the main body 341.

    The temporary bridge erection work using the erection vehicle 340 is as follows. First, two erection vehicles 340 in which two bridge body modules 360 are stacked in two upper and lower stages are arranged at a temporary bridge erection location. The two erection vehicles 340 are arranged in tandem in the front-rear direction. At this time, the front erection vehicle 340 has the gate 350 behind, and the rear erection vehicle 340 has the gate 350 in front. That is, the gates 350 face each other. Then, the gate 350 of the rear construction vehicle 340 is left in an upright state, but the gate 350 of the front construction vehicle 340 is put in a lying state. In addition, the outrigger is lowered from the front construction vehicle 340 and grounded.

    A total of four bridge body modules 360 are mounted on the front and rear construction vehicles 341, and all of them are connected to form a temporary bridge. First, the wire 345 is fed out from the winch 344 of the rear installation car 340, and hung on the pulley 354 of the gate 350 standing upright. Then, the wire 345 is connected to the bridge body module 360 on the lower side of the front installation vehicle 340. The connection location of the wire 345 is set at the tip of the lower bridge module 360 in FIG. 52, but is not necessarily limited thereto. The vicinity of the center of the bridge module 360 may be used as a connection location.

    The bridge module 360 to which the wire 345 is connected is sent forward, and then the upper bridge module 360 is lowered. Then, the front and rear bridge module 360 is connected.

    When the connecting body of the bridge module 360 is sent forward, the connecting body protrudes in a cantilever state from the front end of the front construction vehicle 340. However, since the wire 345 suspends it, it does not fall from the construction vehicle 340.

    From the rear erection vehicle 340, the bridge module 360 is sent to the front erection vehicle 340 through the opening 352 of the upright gate 350. The bridge module 360 is received by the gate 350 in a lying state, and the orientation is corrected by the roller 353 (see FIG. 55). The bridge body module 360 that has been sent in is connected to the previous connecting body, and the operation of sending it further forward is repeated, and finally all four bridge body modules 360 are connected.

    The length of the connecting body of the bridge module 360 is increased, and the amount of wire 345 fed out from the winch 344 is controlled in accordance with the amount of protrusion from the front erection vehicle 340, and the connecting body of the bridge module 360 is always maintained. Keep almost horizontal.

    When the connecting body of the four bridge module 360 sufficiently protrudes, the feeding amount of the wire 345 is increased and the tip of the connecting body is landed. The rear end of the connection body is landed by a manipulator (not shown). Then, the wire 345 is removed from the bridge body module 360. In preparation for the next operation, the wire 345 is wound around the winch 344.

    Thereafter, the procedures for deforming the bridge module 360 in the direction of increasing the moment of inertia of the cross section and forcing the slope blocks 361 at both ends of the connection body of the bridge module 360 to the outside are the same as in the first embodiment.

    It is also possible to form a temporary bridge using only three, two, or one without using all four bridge modules 360.

    All the construction vehicles of the first to sixth embodiments have self-propelling ability, but the construction vehicle itself does not have self-propelling ability, and this is connected to other vehicles having self-propelling ability. It is also possible to adopt a configuration in which it is moved. Such a configuration example is shown in FIGS. 56 to 58 as a seventh embodiment. 56 is a perspective view of an erection vehicle and a towing vehicle, FIG. 57 is a side view showing a temporary bridge erection operation performed using one erection vehicle, and FIG. 58 is a temporary bridge erection operation performed using two erection vehicles. It is a side view which shows a condition.

    The erection vehicle 1a of the seventh embodiment includes the same bridge module erection mechanism as that of the first embodiment. In order to avoid duplication of description, the same components as those in the first embodiment are denoted by the same reference numerals as those used in the description of the first embodiment, and description thereof is omitted.

    Unlike the construction vehicle 1 of the first embodiment, the construction vehicle 1a does not have a self-propelled ability. The main body 10a is supported by a wheel 13 provided at the front and an outrigger 52 provided at the rear. The outrigger 52 is provided on the left and right side surfaces of the main body 10a, and moves symmetrically in synchronization with the left and right. The support leg 53 of the outrigger 52 is pulled up during traveling.

    A tow vehicle 400 having a self-propelled ability pulls the erected vehicle 1a in a backward-facing state. The main body 410 of the towing vehicle 400 includes an endless track 411 on the left and right, a soil discharge plate 412 on the front, and a connecting arm 413 on the rear. The earth removal plate 412 is the same as that used in the bulldozer, and is raised and lowered by hydraulic pressure.

    A connecting arm 54 connected to the connecting arm 413 is provided at the rear portion of the construction vehicle 1a. A connecting arm 55 similar to the connecting arm 413 can be pulled out from the front portion of the construction vehicle 1a (see FIG. 58).

    The construction vehicle 1a is pulled by the towing vehicle 400 and moves backward. If the towing vehicle 400 is backed, the construction vehicle 1a moves forward. FIG. 57 shows a situation where one erection vehicle 1a is arranged at a temporary bridge erection location. In this state, the construction vehicle 1 a is stably supported by the wheels 13 and the outriggers 50 and 52. The subsequent installation procedure is the same as the installation procedure performed using one installation vehicle in the first embodiment. The earth removal plate 412 of the towing vehicle 400 can be used for leveling the location of the construction vehicle 1a.

    FIG. 58 shows a situation where two erection vehicles 1a are arranged at the temporary bridge erection location. The connecting arm 55 is pulled out from the rear construction vehicle 1a, and the connection arm 54 of the front construction vehicle 1a is connected thereto. Since the alignment of the front and rear erection vehicles 1a cannot be ensured only by connecting the connection arms 54 and 55, the grip bar 12 of the front erection vehicle 1a is held by the manipulator 60 of the rear erection vehicle 1a as in the first embodiment. Grab and adjust alignment. The subsequent erection procedure is the same as the erection procedure performed using two erection vehicles in the first embodiment.

    When a plurality of construction vehicles 1a are connected as shown in FIG. 58, all of the connected construction vehicles 1a can be pulled and moved by one towing vehicle 400. As in the case of transport vehicles used in factories, distribution bases, airports, etc., the connecting arm 54 is connected to the steering mechanism of the construction vehicle 1a, and the following construction vehicle 1a is traced in the form of the preceding construction vehicle 1a. It is good to keep running.

    The traveling means of the towing vehicle 400 is not limited to the endless track 411. It is also possible to employ wheels. An ordinary truck or a tractor for trailer towing may be used as a towing vehicle.

    As described above, the style in which the construction vehicle does not have the self-propelling ability and is connected to the other vehicle having the self-propelling ability to move is not limited to the construction vehicle of the first embodiment. It is applicable to the construction vehicle of any of the embodiments.

    Further, in all of the first to seventh embodiments, the “hydraulic cylinder” can be replaced with a general actuator such as hydraulic pressure and electric motor that can perform the same operation.

    While the embodiments of the present invention have been described above, various modifications can be made without departing from the spirit of the invention.

    The present invention can be widely used when securing a vehicle course in a place where no bridge is installed.

The perspective view of the construction vehicle which concerns on 1st Embodiment The perspective view of the bridge body module mounted state of the construction vehicle Perspective view of bridge module The perspective view which shows the example of a connection means of guide beam modules Model diagram showing examples of connecting means between bridge modules 1st side view explaining the temporary bridge erection work performed using one erection vehicle 2nd side view explaining temporary bridge erection work performed using one erection vehicle 3rd side view explaining the temporary bridge erection work performed using one erection vehicle 4th side view explaining temporary bridge erection work performed using one erection vehicle 5th side view explaining the temporary bridge construction work performed using one construction vehicle 6th side view explaining the temporary bridge erection work performed using one erection vehicle 7th side view explaining the temporary bridge erection work performed using one erection vehicle Eighth side view explaining temporary bridge erection work using one erection vehicle 9th side view explaining temporary bridge erection work using one erection vehicle 1st side view explaining temporary bridge removal work performed using one erection vehicle 2nd side view explaining temporary bridge removal work performed using one erection vehicle 3rd side view explaining temporary bridge removal work performed using one construction vehicle 4th side view explaining temporary bridge removal work performed using one erection vehicle 1st side view explaining temporary bridge erection work performed using two erection vehicles 2nd side view explaining temporary bridge construction work performed using two construction vehicles 3rd side view explaining the temporary bridge erection work performed using two erection vehicles 4th side view explaining temporary bridge construction work performed using two construction vehicles 5th side view explaining the temporary bridge erection work performed using two erection vehicles 6th side view explaining the temporary bridge erection work performed using two erection vehicles 7th side view explaining temporary bridge erection work performed using two erection vehicles Eighth side view explaining temporary bridge erection work using two erection vehicles 9th side view explaining the temporary bridge erection work performed using two erection vehicles 10th side view explaining the temporary bridge erection work performed using two erection vehicles An eleventh side view for explaining the temporary bridge erection work performed using two erection vehicles A twelfth side view for explaining a temporary bridge erection operation using two erection vehicles A thirteenth side view for explaining the temporary bridge erection work performed using two erection vehicles 14th side view explaining the temporary bridge erection work performed using two erection vehicles A fifteenth side view for explaining the temporary bridge erection work performed using two erection vehicles 1st side view explaining temporary bridge removal work performed using two construction vehicles 2nd side view explaining temporary bridge removal work performed using two construction vehicles 3rd side view explaining temporary bridge removal work performed using two construction vehicles 4th side view explaining temporary bridge removal work performed using two erection vehicles 5th side view explaining temporary bridge removal work performed using two erection vehicles Perspective view of bridge structure module of other structure A partially enlarged perspective view of the bridge body module, showing the internal mechanism with a part cut away The perspective view which shows the example of another jack mechanism The perspective view of the construction vehicle which concerns on 2nd Embodiment The perspective view which looked at the above-mentioned construction car from the front side The perspective view of the construction vehicle which concerns on 3rd Embodiment The perspective view of the construction vehicle which concerns on 4th Embodiment First front view showing alignment adjustment procedure Second front view showing alignment adjustment procedure Third front view showing alignment adjustment procedure Fourth front view showing alignment adjustment procedure Side view of the construction vehicle according to the fifth embodiment Top view of the erection vehicle Side view showing a temporary bridge erection work situation by an erection vehicle according to the sixth embodiment Side view of bridge module Front view of the gate provided in the above construction car Top view showing the bridge module placed on the gate The perspective view of the construction vehicle and towing vehicle which concern on 7th Embodiment The side view which shows the temporary bridge construction work condition performed using only one construction vehicle of 7th Embodiment The side view which shows the temporary bridge construction work condition performed using two construction vehicles of 7th Embodiment

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Construction vehicle 10 Main body 20 Construction boom 30 Pinion (Bridge body feeding device)
31 Pinion (guide beam feeding device)
40 Lift Device 50 Outrigger 60 Manipulator 70 Bridge Body Module 80 Guide Beam Module 101, 102 Shore 200 Temporary Bridge 110 Bridge Body Module 300, 310, 320 Construction Vehicle 304 Bridge Body Module 330 Construction Vehicle 333 Telescopic Guide Beam 334 Bridge Body Module 340 Construction vehicle 342 Bridge body feeding device 344 Winch 345 Wire 350 Gate 354 Pulley 360 Bridge body module 1a Construction vehicle 400 Towing vehicle 54, 413 Connecting arm

Claims (23)

Temporary bridge erection device with the following configuration:
(A) a bridge vehicle (b) a bridge module mounted in a plurality of stages on the bridge car (c) a bridge module that is stored in each of the bridge modules so as to be slidable in the longitudinal direction, and from the bridge module A guide beam module that can be extended and removed (d) a boom for erection projecting from the front part of the erection vehicle (e) on the erection vehicle, the bridge module at the mounting position is lifted and another bridge is A lift device that forms a space for receiving a body module and lifts other than the lowermost of the bridge modules stacked in a plurality of stages, and allows only the lowermost bridge module to be mounted on the construction boom ( f) A single guide beam feeding device (g) for feeding the single or connected guide beam module from the erection boom. Alternatively, the connected bridge body module is fed out from the erection boom, and the tip of the bridge body feeding device (h) that entrusts the support of the bridge body module to the single or connected guide beam module whose tip is landed. A landing device for landing a rear end of a single or coupled bridge module in a state.   The temporary bridge erection device according to claim 1, wherein the erection vehicle has a self-propelled ability.   2. The temporary bridge erection device according to claim 1, wherein the erection vehicle is connected to another vehicle having a self-propelled ability.   The erection device for a temporary bridge according to any one of claims 1 to 3, wherein the erection boom functions as the landing device.   The guide beam unwinding device or the bridge body unwinding device is used to pull up the single or connected guide beam module or the single or connected bridge body module to the construction vehicle. The construction apparatus of the temporary bridge of any one of Claims 1-3.   The temporary bridge according to any one of claims 1 to 5, further comprising a manipulator that lifts one end of the bridge module that is in a landing state or connected to the bridge module and mounts it on the erection boom. Erection device.   7. The bridge body module according to any one of claims 1 to 6, wherein the bridge module is deformable in a direction in which the cross-sectional secondary moment increases, and power required for the deformation is supplied from a power source on a construction vehicle side. The temporary bridge erection device described.   The bridge body module can be deformed in the direction of increasing the moment of inertia of the cross section, and power required for the deformation is supplied from a power source on the bridge body module side. The temporary bridge erection device described in 1.   9. The temporary bridge erection device according to claim 7, wherein the power source is of an energy storage type.   The temporary bridge erection device according to any one of claims 1 to 9, wherein the bridge module has a form of an all-floor road whose entire width is a roadbed.   The temporary bridge erection device according to any one of claims 1 to 10, wherein the erection vehicle is provided with an alignment adjustment mechanism for a bridge body module that is fed out. The construction method of the temporary bridge characterized by using the construction apparatus of any one of Claims 1-11, and performing the following step:
(A) Step of placing a construction vehicle at a temporary bridge construction site (A) Of the bridge modules stacked in a plurality of stages, the number required at that time is mounted on the construction boom, and the number is If it is, the step (c) of connecting the bridge module modules to each other and connecting the guide beam modules to each other is the step of unwinding the single or connected guide beam from the erection boom and landing the tip ( D) Step of extending the single or connected bridge body module from the erection boom and entrusting the support of the bridge body module to the single or connected guide beam module whose tip is in a landing state (e) ) The step of landing the rear end of the single or connected bridge body module whose tip is in a landing state. The construction apparatus according to any one of claims 7 to 9, wherein the following steps are further performed following the steps (a) to (e). How to build a temporary bridge:
(F) A step of deforming the bridge module in the direction of increasing the moment of inertia by supplying power from the power source. The erection device according to any one of claims 1 to 11, wherein two erection vehicles are used and the following steps are performed:
(A-1) Step of arranging two erection vehicles in front and rear in tandem at the temporary bridge erection location (I-1) Of the bridge modules stacked in multiple stages, the number required at that time Step (c) for connecting the bridge module modules to each other and connecting the guide beam modules to each other when the number is plural. Step (D-1) of extending the guide beam module thus constructed from the installation boom of the front installation vehicle and landing the tip thereof The single or connected bridge module is extended from the installation boom of the front installation vehicle. Step of entrusting the support of the bridge module to the single or connected guide beam module whose tip is in a landing state (e) The tip is in a landing state Single or concatenated step of landing the rear end of the bridge member modules that. The construction apparatus according to any one of claims 7 to 9, wherein the following steps are further performed following the steps (a-1) to (e). Construction method of the temporary bridge described:
(F) A step of deforming the bridge module in the direction of increasing the moment of inertia by supplying power from the power source. 15. The temporary bridge according to claim 14, wherein the erection device according to claim 6 is used, and the following steps are performed between the steps (a-1) and (b-1). Construction method:
(A-2) The step of grasping the rear part of the front construction vehicle with the manipulator of the rear construction vehicle and adjusting the alignment between the construction vehicles. The temporary bridge according to claim 14, wherein the erection device according to claim 11 is used, and the following steps are performed between the steps (a-1) and (b-1). Construction method:
(A-3) Using one or both of the alignment adjusting devices for the front erection vehicle and the rear erection vehicle, a bridge module extended from the front erection vehicle and a bridge module extended from the rear erection vehicle The step of adjusting the alignment. A construction method of a temporary bridge using the construction device having the following configurations (a) to (c) and performing the following steps (a) to (ki):
(A) Construction vehicle (b) Bridge body module mounted in multiple stages on the construction vehicle (c) Telescopic guide beam protruding from the front of the construction vehicle (a) The construction vehicle is placed at the temporary bridge construction location (B) A step of setting the telescopic guide beam to a predetermined length. (C) A necessary number of the bridge modules stacked in a plurality of stages are mounted on the telescopic guide beam. When the number is plural, a step of connecting the bridge modules to each other. (D) A step of landing the tip of the telescopic guide beam. (E) A vehicle for installing the bridge module alone or connected. The step of entrusting the support of the bridge body module to the telescopic guide beam which is extended from the tip and the tip is in the landing state. Withdrawing steps (g) the telescopic guide beam from said bridge member module for landing the rear end of Kikyotai module.   The construction method of the temporary bridge according to claim 18, wherein the construction vehicle has a self-propelled ability.   The construction method of the temporary bridge according to claim 18, wherein the construction vehicle is connected to another vehicle having a self-propelled ability. The construction method of the temporary bridge characterized by using the erection device having the following configurations (a) to (e) and performing the following steps (a) to (ku):
(A) Construction vehicle (b) Bridge body module mounted on the construction vehicle in a plurality of stacks (c) A gate (d) that is provided on the construction vehicle so as to be able to rise and fall and has a pulley at the tip, or and it linked the bridge body module that is installed in a bridge body feeding device (e) the erection vehicle for feeding outside the erection vehicle, comprising a feeding and rollable wire pulleys the wire the gate A winch that is connected to the single or connected bridge body module to be extended through the bridge and controls the posture of the single or connected bridge body module.
(A) Steps in which two erection vehicles are arranged in tandem at the temporary bridge erection site (a) The gate is in a lying state in the front erection vehicle, and the gate is raised in the rear erection vehicle Step (c) A step (D) of placing the bridge module mounted on the erection vehicle at the rear of the bridge module through the standing gate through the standing gate. ) Step (e) of connecting the bridge module mounted on the front erection vehicle and the bridge module mounted on the rear erection vehicle, which are required at that time, alone or A step of connecting the wire of the winch of the rear construction vehicle to the connected bridge body module via the pulley of the standing gate; and (f) the bridge body feeding device of the front construction vehicle; A step of controlling the winch of one of the erected vehicles and feeding out the single or connected bridge module from the front erected vehicle while controlling the posture thereof (ki) the single or connected bridge Landing the tip of the module (G) Landing the rear end of the single or linked bridge module and removing the wire.   The construction method for a temporary bridge according to claim 21, wherein the construction vehicle has a self-propelled ability.   The temporary bridge erection method according to claim 21, wherein the erection vehicle is connected to another vehicle having a self-propelled ability.

Images