JPH0350841B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a device for constructing elevated structures, such as highways supported by girders.

As is well known, such equipment is used in the Davey-Dark construction method, in which a moving device called a wagen is used to support scaffolding and formwork in a suspended state by the wagen, which moves on rails laid on the structure. After the concrete has hardened, rails are placed on top of the hardened concrete to move the wagon, and then concrete is poured in the same way to construct the elevated structure. Although this construction method itself can effectively construct an elevated structure, since the wagon supports a large load, a considerable load is applied to the bridge body supporting it. Therefore, rails are usually laid on the floorboard where the main girder is located to support the load of the wagon. For this reason, when constructing an elevated road where the spacing between the main girders changes, is curved, or has different lengths in the width direction, the wagon may have to be supported on a floor plate other than the one where the main girders are located. Alternatively, in order to cope with this problem, it is necessary to repair the appropriate vehicle, resulting in a problem that the workability is significantly reduced.

[Object of the Invention] The present invention has been made in view of the above-mentioned problems, and its purpose is to prevent the main girder spacing from changing, being curved, or in the width direction when constructing an elevated structure using wagons. The object of the present invention is to provide a device that can be easily constructed to have different lengths.

[Structure of the Invention] The elevated structure construction apparatus of the present invention is an apparatus for sequentially building elevated structures using a wagon, and includes at least two main trusses and a structure that is provided below the main trusses. Front and rear 2 connected in a direction perpendicular to its longitudinal direction
a frame body consisting of two horizontal slide beams; at least two forward wheel sections that move on rails provided on the main girder; The wagon is constituted by a lateral movement device that moves the wagon relative to the slide beam, and when the wagon is moved, the frame body can be moved angularly offset with respect to the moving direction of the forward wheel portion.

[Operations and Effects of the Invention] Therefore, since the frame body can move angularly offset with respect to the forward wheel portion, the load applied to the wagon can be moved forward regardless of the position of the frame body that provides a suitable working range. It can always be supported by the main girder via the wheel part and the rail. As a result, even if the main girder spacing of the elevated structure changes, is curved, or has a different length in the width direction, it can be easily constructed.

[Example] An example of the present invention will be described below with reference to the drawings.

In the lower left of Figures 1 and 2 and the left half of Figure 3, S indicates an elevated structure to be constructed, and this structure is successively constructed to the right in Figures 1 and 2. The work is carried out using a wagon generally designated by W. This Volkswagen W has a frame body indicated by 10 as a whole, and this frame body 10.
Pairs of rails 3a to 3c (abbreviated as 3
Front forward wheel portions 20a to 20c (abbreviated as 20) and rear forward wheel portions 24a to 24c (abbreviated as 24) that constitute a forward wheel portion that moves on Front lateral movement devices 30a to 30c (abbreviated as 30) and rear lateral movement devices 33a to 33c (abbreviated as 33), which constitute a lateral movement device interposed between the frame body 10 and It is roughly configured.

The frame body 10 has three main trusses 11a to 11
1c (abbreviated as 11), and a front transverse slide beam 12 and a rear transverse slide beam 13 that connect these main trusses 11 in the longitudinal direction. Front and rear working devices 14 and 15 for pouring concrete are suspended.

The front forward wheel portion 20 is provided with the steps shown in FIGS.
As shown in the figure, the two front wheels 21, 21 rolling on the rail 3 and the
A main jack 22 that lifts up the concrete load and supports the concrete load, and a propulsion jack 23 that moves the wagon W forward on the rail 3 are provided.

The rear forward wheel portion 24 is provided with two pairs of rear wheels 25 that sandwich the rail 3 from below on the outside. A known clamping device 26 including a jacking device for locking a reaction force against the hanging load of the wagon W is provided near the rear forward wheel portion 24 of the frame 10.

The front lateral movement device 30 includes the front forward wheel portion 20
and a large number of horizontal rollers 31 with low frictional resistance that support the front horizontal slide beam 12 and the front forward wheel section 20 and the front horizontal slide beam 12. three vertical rollers 32 for absorbing angular deviations with
and is provided.

The rear lateral movement device 33 is connected to the rear forward wheel portion 24
The bifurcated parts 34a, 34a of the beam 34 which is erected and whose upper part is bifurcated and the rear transverse slide beam 1
3, and is provided with two horizontal rollers 35, 35 with low frictional resistance that come into contact with the rear transverse slide beam 13, and between the beam 34 and the rear forward wheel section 24. A spherical bearing 36 is provided to absorb angular deviation between the wheel portion 24 and the rear transverse slide beam 13.

Next, embodiments of the present invention will be described with reference to FIGS. 1 to 4 regarding a branch section of an elevated road.

Now, as shown in Figure 2, the elevated road to be constructed is constructed one section at a time from the left in the direction of the arrow (indicated by a number in parentheses), branching off at the position mark (14). do. The spacing between the main girders 1a to 1f of this elevated road is indicated by the position mark (02)
The section from ~(14) widens slightly, and after position mark (14) it widens rapidly, especially on the right side. During construction, the rails 3a to 3f are laid on the floorboard where the main girders 1a to 1f are located, and in the section up to the position mark (14), the two Volkswagens W and W1 are connected by connecting members 16a and 16b. , common front working device 14 and side working device 15,15
The work is carried out by the two Volkswagens W and W1 separately in the section after the position mark (14).

To explain the work for the Wagen W, as shown in FIG. Keep it away from rail 3.

In this state, the work devices 14 and 15 perform work such as installing formwork and pouring concrete in the section of position marks (02) to (2). Once the concrete in the above section has solidified, move the rail 3 to position mark (2). Next, the main jack 22 is contracted to place the front wheel 21 on the rail 3, and the jack of the clamp device 26 is activated to release the attachment between the wagon W and the structure S and bring the rear wheel 25 into contact with the rail 3. Next, the propulsion jack 23 is extended to move the wagon W to the position mark (2).

In order to clarify the state of movement of the wagon W, the section of position marks (21) to (23) at the lower right of FIG. 2 will be explained. The elevated road in this section is curved and widened significantly. Therefore, the intervals between the main girders 1a to 1c are both widened, and the intervals between the rails 3a to 3c laid thereon are also widened. The wagon W moves on these rails 3a to 3c, and at this time, the moving direction of the frame 10 is locked in the direction of arrow F by means not shown. Therefore, the front forward wheel portion 20 is connected to the rail 3a.
~3c When moving on the frame 10, that is, the front horizontal slide beam 12, angular deviation θ2 on the left side, angular displacement θ1 on the right side, horizontal deviation S2 on the left side, and horizontal deviation on the right side A directional deviation S1 results. However, the horizontal deviation S1 on the right side is absorbed by the front forward wheel unit 20 sliding horizontally by a distance S1 with respect to the front lateral sliding beam 12 via the horizontal roller 31 of the front lateral moving device 30. be able to. Then, two vertical rollers 32 (sixth
The angular deviation θ1 is caused by the rollers on both sides of the figure).
can be absorbed. Horizontal deviation on the right side
S1 and angular displacement θ1 can be absorbed in the same way. Further, the horizontal displacement of the rear forward wheel portion 24 is handled by the horizontal rollers 35, 35 of the rear lateral movement device 33, and the angular displacement is handled by the spherical bearing 3.
It can be absorbed by rotation around the vertical axis of 6. For this reason, the forward wheel portions 20 and 24 are connected to the frame 1.
In other words, the frame body 10 can move without being restrained by the horizontal slide beams 12 and 13, and therefore the frame body 10 can move angularly biased with respect to the moving direction of the forward wheel parts 20 and 24. .
After the movement of the Wagen W has been completed, the rear part of the frame 10 is fixed to the structure by the clamp device 26 in the same manner as described above, and work is carried out in the area of position marks (23) to (25). In this way, the load of the Volkswagen W can always be supported by the main girders 1a to 1c.

[Summary] As explained above, according to the present invention, when the wagon moves, the frame body can be moved in a biased manner in the direction of movement of the forward wheel section, so that the main girder spacing of the elevated structure does not change. , the load of the wagon can always be supported by the main girder, giving a suitable working range even if it is curved or has a different length in the width direction.
Therefore, construction work can be easily performed.

[Brief explanation of drawings]

FIG. 1 is a side view showing a wagon implementing the present invention, FIG. 2 is a top view showing its top surface and an elevated road,
3 is a sectional view taken along the line A-A in FIG. 2, FIG. 4 is a sectional view taken along the line B-B in FIG. The figure is a front front view of FIG. 5, and FIG. 7 is a partial rear front view of FIG. W...Wagen, 1...Main frame, 3...Rail,
10... Frame body, 11... Main truss, 12...
Front lateral slide beam, 13... Rear lateral slide beam, 20... Front forward wheel section, 24... Rear forward wheel section, 30... Front lateral movement device, 33...
Rear lateral movement device.

Claims (1)

[Claims] 1. In an apparatus for sequentially constructing elevated structures using wagons, at least two main trusses and two front and rear lateral slides provided below the main trusses and connecting these main trusses in a direction perpendicular to their longitudinal directions. A frame body made of a beam, at least two forward wheel sections that move on rails provided on the main girder, and a forward wheel section that is interposed between these forward wheel sections and a horizontal slide beam so that the forward wheel section becomes a horizontal slide beam. The elevated vehicle is configured with a lateral movement device that moves the vehicle relatively to the vehicle, and the frame body can be moved angularly with respect to the moving direction of the forward wheel portion when the wagon is moved. Structure construction equipment.