JPH10196097A - Moving support device and construction method for temporary structure using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify construction by installing plural moving support devices in a position where to construct a temporary structure, locating the moving support devices in designated positions, and then constructing a work frame, taking each support of moving support devices as a post. SOLUTION: A moving support device 2 having a support 11, the length of which can be adjusted vertically, is installed on the top side of a crawler traveling unit comprising a bulldozer or the like, and the support 11 is capable of tilting in two-dimensional direction of X-Y in plane. An upper beam 30 and a lower beam are fitted to the respective supports 11 of the moving support device 2, the end of the upper beam 30 is connected to the upper beam connecting bracket of the support 11 by a high strength bolt, ad the lower beam is connected to the lower beam connecting bracket in the lower position. Subsequently, a pair of right and left running rails 4 are laid along the upper side of the upper beam 30, a self-running frame 5 is installed on the traveling rails 4, and an elevating table is installed on the support 11 to be used for movement of a worker. Accordingly, a temporary structure can be simply constructed in a designated position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention easily constructs temporary structures such as temporary vents, piers, work scaffolds, work platforms, etc. at predetermined positions without the need for foundation work, large-scale embankment or leveling. TECHNICAL FIELD The present invention relates to a movable column device for enabling the method and a method for constructing a temporary structure using the device.

[0002]

2. Description of the Related Art Conventionally, in the construction of a civil engineering structure such as a bridge, a foundation construction method and a method of erection of a girder have been selected in consideration of various construction conditions such as terrain conditions, yards, and securing of a carry-in path. I have. Particularly in the case of bridge construction in a mountainous area or the like, the topographical conditions are often extremely poor, and various difficulties are involved in construction. For example, when constructing an abutment or a pier, it is difficult to secure a flat yard as a work yard in an adjacent place, so a pier or a work stand is constructed on a slope to secure the work yard. In the actual construction work, the construction of a pier and a work platform was carried out by large-scale earthworks to carry out the construction of the pier and the work platform. The work from construction to pier and work stand assembly is performed. If it is necessary to construct a temporary girder support such as a temporary vent in the valley even when the girder is erected, create a carry-in path to the temporary vent erection position, and then A secure work yard is secured to carry in construction equipment and materials.

[0003]

As described above, in the case of the conventional construction method, in order to construct a temporary structure such as a temporary vent, a pier, a work scaffold, a work stand, etc. Building a temporary structure before constructing the main structure, such as securing a work yard for building the structure and foundation work for the temporary structure, took a great deal of time and effort. In addition, there are naturally problems such as a prolonged overall process and an increase in construction costs. At the same time, the construction site of the bridge has been modified in terrain in order to maintain a large access road and secure a work yard, and environmental problems such as natural destruction have been occurring.

[0004] In addition, even in the case of a bridge constructed on a river, for example, not only in a mountainous area, it is difficult to construct a temporary vent or a pier in a river due to legal problems and ground conditions of the river. There are also problems such as the necessity of separately requiring large-scale erection equipment.

On the other hand, even when constructing a rock shed or a snow shed in a mountainous area other than the construction of a bridge or the like, it is necessary to construct a work stand on a slope to secure a work yard to secure road traffic. In many cases, however, the construction of the work platform has the same problem as described above.

Accordingly, the main problems of the present invention are foundation work,
A moving support device and a moving support device for easily constructing a temporary structure such as a temporary vent, a pier, a work scaffold, and a work stand at a predetermined position without the need for large-scale embankment or leveling, and the like. An object of the present invention is to provide a method for constructing an erecting structure.

[0007]

A moving support apparatus according to the present invention for solving the above-mentioned problems has a self-propelled traveling body, and is erected on the traveling body so that at least the vertical length can be adjusted. And a support.

In this case, in order to facilitate connection of a temporary structural assembly member such as a beam material horizontally laid between the columns, the columns can be tilted two-dimensionally in the XY plane. Preferably, at least the chord connecting portion provided on the upper side is rotatable around the longitudinal axis of the column. Further, an elevating device may be provided for the column to carry in workers and materials from the ground. It is preferable that the traveling body adopts a crawler traveling method so as to be able to travel on an inclined surface or a rough road.

Next, in a first method for constructing a temporary structure using the movable support device, a plurality of the movable support devices are put into a position where the temporary structure is to be constructed, and these movable support devices are set at predetermined positions. After the localization, a temporary structure such as a temporary vent, a pier, a work scaffold, a work stand, or the like is constructed by using each support of the movable support apparatus as a pillar.

According to the present method, a temporary structure can be easily constructed without carrying out a large-scale carry-in path for carrying in a construction machine or the like or a material, and without performing foundation work for the temporary structure. It is possible to do. In other words, if the movable support device can enter even on a sloped road or a bad road, the temporary structure is constructed by using the respective columns of the movable support device located at the planned construction position of the temporary structure as pillars. be able to. As a heavy machine for assembling a temporary structure, for example, in the case of an abutment, a truck crane or a crawler crane positioned at an earthwork site, a cable crane installed in a valley for erection of a girder, and the like are suitably used. You.

In a second method for constructing a temporary structure, at least six or more of the movable strut devices are put into a position where the temporary structure is to be constructed, and a temporary vent, a pier, and the like are used as pillars. , A work scaffold, a work stand, etc., and a movable work floor is set up by laying rails on the temporary structure, and the two right and left movable supports in the rearward direction in the traveling direction. The temporary structure assembly member for one span adjacent to the device is sequentially replaced on the front side in the traveling direction to gradually move the entire temporary structure. This is a so-called movable work platform described later. In the case of the second construction method, in particular, a crane device that is fixedly arranged or movable on the work floor is provided, and the crane is sequentially changed. Therefore, by moving the entire temporary structure according to the progress of construction work,
Bridges can be erected with the minimum temporary structure scale. When there is a cable crane installed in a valley for erection of a girder, the cable can be changed by a cable crane without using the crane device on the work floor.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 6 are views showing a case where a movable work platform 1 is constructed using the movable support devices 2, 2,... According to the present invention. Specifically, FIG. FIG. 3 is a perspective view of the frame 3, and FIGS. 4 and 5 are perspective views of a gantry floor 5.

First, referring to FIG.
The trussed frame part 3 is constructed on the upper side by using a total of six movable support devices 2, 2,..., Three on each of the left and right sides, and a pair of right and left traveling rails 4 is provided on the upper surfaces of the upper beams 30, 30. , And a gantry floor (work floor) 5 is mounted on the traveling rails 4, 4.

As shown in detail in FIG. 2, the movable support device 2 is provided on a top surface of a crawler traveling body 10 with a support 1.
In general, a traveling section of a bulldozer is suitably used as the crawler traveling body 10. Inside the crawler traveling body 10, an engine is mounted so as to be able to run on its own, and auxiliary equipment such as a hydraulic pressure source and a generator are mounted. In addition, a shovel 12 is provided at the front to secure a traveling path and level the installation position to some extent. The crawler traveling body 10
Alternatively, a wheel type (tire type) traveling body may be used.

On the upper surface of the crawler traveling body 10, there is provided a supporting stand 14 supported by a support shaft 14a disposed along the traveling direction and capable of swinging in the width direction of the crawler traveling body 10. 14 is a support stand roll angle adjusting jack 13
Tilt adjustment. On the upper surface 14b of the support base 14, a support base 15 supported by a support shaft 15a arranged in the width direction of the crawler traveling body 10 and swingable in the traveling direction is provided.
A support 11 is erected on 5. A lower end is pivotally supported on the support base 14 side, and an upper end is freely tiltable along the traveling direction by an up-and-down adjusting jack 16 which is pivotally supported at the middle of the support 11. That is, pillar 1
1 can be tilted two-dimensionally in the XY plane by the support base roll angle adjustment jack 13 and the undulation adjustment jack 16.

A column height adjusting jack 17 is interposed between the columns 11 so that the column height can be adjusted within a predetermined range, and a table rotatable by hydraulic drive is provided immediately above the column. A support azimuth adjustment device 18 is provided, and in order to make the orientation of the chord connecting portions (upper and lower beam connection brackets) 21 and 22 variable, the upper side support 11 portion of the support azimuth adjustment device 18 is a longitudinal axis. It is rotatable around.

On the other hand, upper beam connecting brackets 21, 21... Protruding in three directions are provided at the uppermost portion of the column 11, and a lower beam connecting bracket 22 is provided at a lower side thereof at a predetermined distance. , 22... Are provided, and the upper and lower beams of the temporary structure can be connected to each other. A guide rail 24 is fixed along the longitudinal direction of the column 11, and an elevating platform 20 that can run along the guide rail 24 is provided. The elevating table 20 is fixed to the top of the column 11. It can be moved up and down by the winch 19. How to use the lift 20 will be described later.

On the other hand, a vertical measuring sensor 23 is provided below the column 11, and data measured here is sent to a controller 25, and the support roll angle adjusting jack 1 is provided.
3. The undulation adjustment jack 16 is controlled so that the vertical position of the support 11 is automatically secured. In addition, prop 1
An intermediate support 11a is provided in the middle of 1 and the number of the intermediate supports 11a can cope with a significant change in the height of the support.

By the way, in this embodiment, the strut portion of the temporary structure is used as the strut 11, but as shown in FIG. 7, the temporary structure is independently constructed including the pillar, and the lower end of the pillar is constructed. May be vertically supported by the column 11. In the example shown in the drawing, a concave portion at the lower end of the column is formed, and
b is fitted. In addition, by using an amphibious type as the crawler traveling body 10, it is possible to enter even in a river.

Next, as shown in FIG. 3, the frame 3 is provided with upper beams 30, 31,..., Lower beams 32, 33, etc., for the respective columns 11, 11,. Are attached and the columns 11, 11... Are interconnected. Specifically, the connection brackets 21 for the upper beams of the support 11, 21.
Are joined together by high-strength bolts or the like, and lower beams 32, 33,... Are connected to lower beam connecting brackets 22, 22,.
Are joined together by high-strength bolts and the like, and in order to further increase the stability of the structure,
4, 34... Are provided for each opening frame. Finally, a pair of left and right traveling rails 4, 4 are laid along the upper side of the upper beams 30, 30,.

As shown in FIG. 4, a gantry floor 5 capable of self-running on the traveling rails 4, 4 is provided for the traveling rails 4, 4, respectively. Further, a fixed crane device 6 can be provided for the gantry floor 5 as shown in the figure, or a crawler crane 7 can be provided as shown in FIG.

On the other hand, as shown in FIG. 6, for example, as shown in FIG. 6, a gondola 37 is attached to the elevating platform 20 when it is used as an operator's moving facility. For example, when used for carrying in materials, etc., a hanging tool 35 is hung on a pair of elevators 20, 20, and materials 36 are mounted on the pedestal floor 5. Transport to height position.

The movement of the movable work base 1 is performed in a manner generally shown in FIG.

[0024] First, as shown in FIG. 8 (A), after moving the cradle bed 5 in the traveling direction, by the crawler crane 7 that is mounted on the pedestal floor 5, the intermediate movable support column device 2 ₂ disassembling the rack構組standing member between the rearward movement strut unit 2 _3. The state after disassembly is the state of FIG. In addition, it is desirable to disassemble the frame for each trussed face material from the viewpoint of work efficiency. If the rear-side mobile post equipment 2 ₃ are completely separated, the mobile strut device 2 ₃ is moved to the front in the traveling direction, as shown in FIG. 8 (C), the rack構組elevation member dismantled in the process The moving support device 2
Integrate with ₃ to complete one-step movement. Incidentally, after the movement of the moving strut unit 2 _3, post height is adjusted by the strut height adjusting jack 17, the strut 1 by the support base roll angle adjusting jack 13 and undulations adjusting jack 16
Needless to say, the vertical adjustment of 1 is performed.

Although the example of the movable work platform 1 using the movable support device 2 has been described in detail, the present invention can be effectively applied to a fixed work platform. For example, when constructing an abutment, a rock shed, or a snow shed, when securing a work yard beside a road, for example, as shown in FIG. Then, the struts 11, 11 of these moving strut devices 2, 2
… Are used as columns, and upper beams 30, lower beams 32, diagonal members 34, etc. are assembled to complete the gantry. 40 is a cantilever 30
This is a simple cradle for supporting the overhanging end of A.

Further, the present invention can be applied not only to the use as the work stand, but also to the construction of various temporary structures, specifically, temporary vents for erection of girder, work scaffolds such as abutments and bridge piers, and support construction. In this case, it can be suitably used.

[0027]

As described in detail above, according to the present invention, there is no need for foundation work, large-scale embankment or leveling, etc.
Temporary structures such as temporary vents, piers, work platforms, and work platforms can be easily constructed at predetermined positions. Also, in particular, at least six or more of the movable strut devices are inserted into the planned position of the temporary structure, and the two left and right movable strut devices at the rear end in the traveling direction and the temporary structure for one span adjacent thereto By sequentially changing the object assembling members to the front side in the traveling direction, the entire temporary structure can be gradually moved.

[Brief description of the drawings]

FIG. 1 is an overall schematic diagram of a movable work platform 1 according to the present invention.

FIG. 2 is a perspective view of the moving support device 2.

FIG. 3 is a perspective view of the frame portion 3;

4 is a perspective view of a mode in which a fixed crane is provided on the gantry floor 5. FIG.

FIG. 5 is a side view of a mode in which a crawler crane is provided on the gantry floor 5;

FIG. 6 is an attached state diagram of various lifting equipment.

FIG. 7 is a perspective view of a main part showing another example of the frame support structure.

FIG. 8 is a view showing how to move the movable work platform 1.

FIG. 9 is a cross-sectional view of an example of a fixed work platform.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Movable work stand, 2 ... Moving support device, 3 ... Frame part, 4
… Running rails, 5 gantry floor, 6… crane equipment, 7… crawler cranes, 10… crawler running body, 11… props,
12 excavator, 13 support base roll angle adjustment jack,
14 ... support stand, 15 ... support base, 16 ... undulation adjustment jack, 17 ... support height adjustment jack, 18 ... support azimuth adjustment device, 19 ... winch, 20 ... lift base, 21 ... upper beam connection bracket, 22 ... Connection bracket for lower beam, 23… Vertical measurement sensor, 35… Hanging tool, 37… Gondola

Claims (6)

[Claims] 1. A moving support apparatus comprising: a self-propelled running body; and a support standing upright on the running body and capable of adjusting at least a vertical length. 2. The strut can be tilted in a two-dimensional direction of XY in a plane, and a chord connecting portion provided at least on an upper side is rotatable around a longitudinal axis of the strut. The moving support device according to claim 1. 3. The moving support device according to claim 1, wherein a lifting device is provided for the support. 4. The structure according to claim 1, wherein said temporary structure is to be constructed.
After loading a plurality of the described moving support devices and positioning these moving support devices at predetermined positions, the temporary structures such as a temporary vent, a pier, a work scaffold, and a work stand are used as pillars of each of the mobile support devices. A method for constructing a temporary structure. 5. The construction according to claim 1, wherein said temporary structure is to be constructed.
At least six or more of the movable strut devices described above are thrown in, and a temporary vent, a pier,
Construct a temporary structure such as a work scaffold, a work frame, etc., lay a rail on this temporary structure, install a movable work floor, and move the rear two right and left moving support devices in the traveling direction. A temporary structure assembly member for one span adjacent to the temporary structure is sequentially moved to the front side in the traveling direction to gradually move the entire temporary structure. 6. The method for constructing a temporary structure according to claim 5, wherein a crane fixed or movable on the work floor is provided.