JPS61146964A - Moving mold frame apparatus of slab concrete of high bridge - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a mobile formwork device that can continuously cast concrete slabs for elevated bridges and the like.

``Conventional technology'' Construction of viaducts on railways, expressways, etc. involves constructing slabs with almost the same shape continuously on the piers that have been constructed. Using this shoring as a foundation, a slab frame is assembled and concrete is poured. and,
After the concrete hardens, the forms and supports are removed, transported to the next construction section, and reassembled as described above for use.

In such conventional construction methods, the formwork and shoring are assembled and dismantled for each work section and construction proceeds sequentially, making the work extremely complicated and requiring a large number of people and effort.
It was inefficient and cost a lot of money. In addition, in order to solve these problems, a construction method has been developed in which the formwork or shoring is moved to the next location while it is still in place.However, even with this construction method, the assembly of the shoring,
Not only is dismantling troublesome, but the construction is large-scale and construction costs are high, such as requiring a large lane to move the formwork.

"Problems to be Solved by the Present Invention" The present invention solves the drawbacks of the conventional construction method as described above, and uses a movable formwork device that can travel and adjust its height, and a trolley for further moving the formwork device. Provides a mobile formwork device for slab concrete that allows construction to be continued without dismantling the assembled formwork device, which simplifies construction work and enables labor-saving, efficient, and economical construction. This is what I am trying to do.

"Means for Solving the Problems" The formwork device of the present invention is placed on a rail between the piers installed in a row and is movable along the transverse direction of the slab to be constructed, A slab formwork device comprising a height-adjustable cart and a slab formwork, the slab formwork device being placed on the cart and movable in a direction perpendicular to the moving direction of the cart; It is characterized by a transfer guide rail installed between the carts in order to move the cart from one cart to the other.

"Embodiments" Hereinafter, embodiments of the apparatus of the present invention will be described with reference to the drawings.

The device of the present invention is used in the construction of elevated bridges, etc., with a cart A movably placed between each bridge pier and 0 that have already been installed in a row.
Slab formwork device B is movably placed on this trolley A.
, and a transfer guide rail C that is installed between the adjacent carts A and A'.

The bogie driver is provided with running legs 4, which are equipped with wheels 2 at the lower end and whose height can be freely adjusted by an elevation adjustment mechanism 3, on the lower surface of the four corners of a rectangular chassis 1, and between each of the piers arranged in a row. It is movably mounted on rails 5°5 laid along the transverse direction of the slab to be constructed on the ground E. As shown in the diagram, this truck driver is located between 6 bridges 1jlD and 0.
If there are irregularities or inclinations, for example, the length of the running legs 4 may be changed or an appropriate auxiliary support 1a may be interposed in order to place the cart A in a horizontal state. In addition, stepped recesses 6.6 are formed at both left and right ends of the front and rear ends of the chassis 1, and a rail member 7.7 is provided between them in a direction perpendicular to the running direction of the chassis A.〇Slab type In the frame device B, traveling vehicles #9, 9 are mounted on the four corners of an underframe 8 formed in a three-dimensional shape, and a slab formwork 13 is mounted on the underframe 8.

The slab formwork 13 is formed by arranging a large number of buffing materials 14 and attaching a weir plate 15, and is mounted on a girder 16 installed on the upper end of the underframe 8.

This slab formwork apparatus B is placed on the rail member 7.7 of the truck A via wheels 9.9, and the rail member 7.
It is now possible to move by running on it. In other words, the slab formwork apparatus B is capable of moving in a direction perpendicular to the moving direction of the truck driver.

"Operation" Next, the method of constructing slab concrete between each bridge pier and 0 using the apparatus of the present invention will be described.

First, on the ground E between #6 bridge #D and #0, a pair of rails 5°5 was installed with oil in the transverse direction of the slab to be constructed.
Lay it long outward between 0 and 0. Then, the trolleys A and A are placed on the rails 5 and 5 between the piers, respectively, via the wheels 2.

At the beginning of construction, the bogie A between Hirohat's first pier, 0, was in a position where it was completely pulled out from the pier, 0, as shown by the solid line A in Figure 6, and this bogie The slab formwork device B is placed on the rail member 7.7 of A via wheels 9. Next, the trolley A is moved to the pier with oil on the rails 5, 5, and fixed at a predetermined position. Then, the height of the chassis 1 is adjusted by operating the lifting mechanism 3 of the traveling legs 4.4-..., and the slab formwork 13 is set at a predetermined height position, and the slab concrete F is poured. The side formwork (not shown) necessary for this is set, and slab concrete F is poured.

Once the poured concrete has hardened, the running legs 4,
The height of the chassis 1 is lowered by operating the elevating mechanism 3 (4), and the slab formwork 13 is peeled off from the concrete (F). The other side formwork will also be removed. Once the peeling mold of the slab formwork 13 is completed, move the trolley A and move the formwork device B to the bridge 111.
! ID and D are pulled out. Then, align the next bogie installed between the next piers to the position where it moves together with this bogie A as shown in Figure 6, and place it between the stepped recesses 6.6 of both bogies A and A'. Crossing rail C1c (Fig. 81, Fig. 6) II is provided, and both bogies A, A' (7) and each rail member 7.7 are communicated via crossing rail C. If the slab formwork device B is pushed forward in this state, the slab formwork device B will move across the rail C from the original truck A to the next truck A' as shown in Figure 4, and as shown in Figure 5. , Figure 6 (b)
It will be placed in a position like this.

In this way, after transferring the slab formwork device B to the next trolley A', remove the crossing rail C and transfer it to the next trolley A'.
' is moved into the next pier D, the slab formwork 13 is set in a predetermined state as in the case between the previous piers, and the next slab concrete F is poured. By repeating the above steps, the construction of the slap congs 1]-to between the respective piers will be performed in sequence.

"Effects of the Invention" As explained above, the device of the present invention is mounted on the rails laid between the piers installed in a row, is movable along the transverse direction of the slab to be constructed, and is installed at high elevations. a slab formwork device which is provided with a cart whose height can be freely adjusted; and a slab formwork device which is placed on the cart and is movable in a direction orthogonal to the moving direction of the cart; Because it is characterized by a passing guide rail installed between the carts in order to move it to the other cart,
The slab formwork for placing slab concrete between each pier can be placed on a trolley and set, and after the poured concrete has hardened, the formwork is lowered by the lifting and lowering adjustment mechanism of the traveling legs. Peeling and demolding are performed, and the slab formwork is pulled out to the outside of the pier using a trolley, moved and transferred to the next trolley via a passing rail, and then the trolley is moved between the next piers to form the slab formwork. Slab concrete construction can proceed with the extremely simple operation of lifting and setting, and unlike conventional methods, the slab formwork can be assembled and dismantled between each pier, and the slab formwork can be supported. It is an excellent method, as it does not require the complicated construction work of assembling and dismantling the support between each pier, and the construction is significantly simplified, making the construction work labor-saving, efficient, and economical. It has the following effects.

[Brief explanation of the drawing]

The drawings show an embodiment of the device of the present invention; FIG. 1 is a side view, FIG. 2 is a partially cutaway plan view, and FIGS. 3 to 6 show construction aspects. The figure is a side view during slab concrete pouring, Figure 4 is a side view showing the moving state of the slab formwork equipment, Figure 5 is a side view showing the equipment moved to the next construction position, and Figure 6 is a side view showing the state in which the equipment is moved to the next construction position. It is a top view showing a construction process. A...Bolly B...Slab formwork device C...Transfer rail D-...Pier E
...Ground F-...Slab concrete...Car chassis 2...Wheels 4.
... Traveling leg body 6 ... Stepping recess 7 ...
...Rail member 8...Underframe 9...
Traveling wheels 13... Slab formwork Figure 1 E Knee □1. Two helmets 2

Claims (1)

[Claims] It is mounted on a rail laid between each of the piers installed in a row, is provided so as to be movable along the transverse direction of the slab to be constructed, and is equipped with a height-adjustable trolley and a slab formwork. A slab formwork device that is mounted and movable in a direction perpendicular to the moving direction of the cart, and a guide rail installed between the carts in order to move the slab formwork device from one cart to the other. A mobile formwork device for concrete slabs such as viaducts, which is characterized by: