JPH03144069A - Running type form timbering - Google Patents

Abstract

PURPOSE:To improve the efficiency of construction by a method wherein laterally and longitudinally arranged stays are combined together by means of a lateral frame material, and a lever device and a leg wheel device where wheels rolled in the direction of length and the direction of width are elevatably and regulatably mounted to corner pillars are mounted to the lower end of a stay. CONSTITUTION:Through expansion of a jack 19 of a leg wheel device 16, a box frame body 1 is lifted through corner legs 2 and 2. A timbering on which forms are placed is supported to devices 16 and 16 and pushed forward on rails 25 and 25 and moved to a given position. When the position, in the direction of the width of a constructing structure, of the forms is displaced, short rails 30 and 30 for lateral movement extending at right angles with the rail 25 are installed, and through expansion of the jack 19, wheels 21 and 21 are placed on the rails 30 and 30. The one of the wheels 21 and 21 is levitated, and the timbering is moved on the rails 30 and 30 to regulate a position. The stays 2 and 3 are supported on a floor surface through a lever device 6 and a patch seat 15, and concrete is placed.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a traveling formwork support for supporting and moving the inner formwork of a box culvert.

(Prior Art) In constructing various types of culverts and elevated structures such as underground passages and tunnels, various types of movable internal formwork devices have been used to improve the efficiency of construction.

Conventionally, as this type of device, for example, Japanese Patent Publication No. 63-512
As shown in Publication No. 36, the inner formwork is supported on a support frame body (truck) to which casters are attached, so that the inner formwork can be moved, shaped, and shaped into a membrane. is used.

(Problem to be Solved by the Invention) By the way, the above-mentioned truck has a structure in which the traveling casters are attached to the four corner pillars of the support frame.
Casting concrete supports the large load placed on the formwork, so if the structure to be constructed, such as a culvert, is large, in addition to the four corner supports, it is necessary to erect many center pillars for each support. The load must be distributed.

In this case, it is necessary to provide each support with a means for easily switching the state between traveling and supporting a large load.

Common methods for this include inserting a camber or a fence between the support and the floor when supporting the load on each support, or installing screws at the lower end like in conventional temporary support. However, with these conventional means, it is troublesome to switch between traveling and supporting a load, and it is especially difficult to move the support column to release it from the floor when it is under heavy load. The problem is that operations for removing and loosening screws are difficult and require a lot of manpower and time, which negates the advantage of using mobile formwork equipment. There is.

In addition, this type of equipment moves along rails installed on the floor to the construction position and sets the formwork, but in this case, the longitudinal positioning of the formwork is determined by the movement position on the rails. This can be easily done by adjusting the width of the formwork, but since the widthwise position of the formwork is restricted by the rail facility position, the rail facility requires greater accuracy and takes a lot of time. And if it is discovered that there is something wrong with the rail facilities after the 11th grade is brought in, it will take a lot of time and effort to repair the rails, which will further reduce work efficiency.

The present invention solves the above-mentioned problems and makes it possible to easily change the state of each support column between traveling movement and load support, and to release the load on the support column without requiring much manpower. To improve construction efficiency and economy by making it easy to adjust the position of the formwork to the middle edge 1hJ even if the rail facilities are inaccurate or the rail facilities are out of alignment. The purpose of this project is to provide a mobile formwork shoring system that can perform

(Means for Solving the Problems) The structure of the present invention for achieving the above object will be explained with reference to the drawings corresponding to the embodiments. 3 are joined by horizontal frame members 4.4 to form a square box frame l, and at the lower end of each of the above-mentioned supports 2.3, a threaded rod 14 with a seat 13 provided at the lower end is attached at one end. A lever device 6 is provided in which a lever rod 8 is screwed so that it can be raised and lowered, and is tilted around a horizontal axis 10. Raise and lower the wheels 21.21, D,! ] An articulated caster device 16 and wheels 21 that roll in the rlJ direction of the constructed structure.
A caster device with 21 that can be adjusted up and down! 7.

(Example) Hereinafter, an example of the shoring structure of the present invention will be described with reference to the drawings.

In the figure, 1 is a box frame that forms the framework of the shoring.
Corner pillars 2.2 and middle pillars 3.3 are arranged in rows and columns, and the pillars 2, 2.3.3 are connected to each other by horizontal horizontal frame members 4, 4, so that the plane and sides are square. It is formed into a frame shape, and a vertical beam 5.5 for mounting the formwork is connected to the upper end of the vertically arranged columns.

A lever device 6 is installed at the lower end of each of the corner pillars 2 and middle pillars 3, which are constituent members of the box frame body 1. This device, as shown in enlarged views in Figs. 5 and 6,
A mounting member 7 removably provided at the lower ends of the columns 2 and 3 is tilted by a horizontal axis 10 at a position nearer to one end of a lever 8 formed in the shape of a horizontally long frame or the center of its length. It has a structure that can be freely pivoted.

This lever 8 is provided with a seat plate 9 on the lower surface of the shorter lever part 8a than the pivot point on the horizontal axis, and a vertical screw is provided in the tip of the longer lever m8b. The bridge member 11 screwed into the hole 11a is rotatable by the horizontal pin 12, 12 in the direction across the rod portion 8b? A screw rod 14 having a rotatably provided seat body 13 formed in a mold at the lower end is screwed into the screw hole 11a of the bridge member 11, and by rotating the screw rod 14, the screw can be screwed. The rod 14 moves up and down, so that the position of the seat 13 can be moved up and down.

Each support column 2.3 comes into contact with the floor surface via the lever device 6 and receives its load during concrete pouring. In this case, as shown in the figure, a seat 15.15 is inserted between the lower surface of the seat body 13 provided on the seat plate 9 of the short lever portion 8a of the lever lever 8 and the floor surface of the seat body 13 provided on the long lever portion 8b. Then, by rotating the screw rod 14 at the end of the lever 8, the lever 8
By tilting, the vertical position of the column 2.3 can be adjusted and set via the horizontal shaft 10.

Also, the four corners? Each corner post 2 is provided with a caster device 16.16 for moving the box frame 1 in the longitudinal direction of the construction structure, that is, in the longitudinal direction of the construction structure, and a caster device 16, 16 for moving the box frame 1 across the construction structure. Caster device 17.1 for adjustment and movement in the direction, that is, in the width direction of the box frame 1
7 is installed. These castor devices 16 and 17 have almost the same configuration, and as shown in the enlarged view in FIG. A trolley 22 with wheels 21 and 21 is detachably attached to the lower end of a pedestal 20 with bolts and nuts 23 and 23, etc. One castor device 16 has its wheels 2
1.21 is attached to the corner post 2 via brackets 24°24 in a posture such that it rolls in the longitudinal direction of the construction structure, and the other castor device 17 has its wheels 21.21 rolling in the construction structure. As an LA force that rolls in the width direction, corner post 2
is attached to the above-mentioned bracket 24.24.

The traveling formwork support of the present invention is constructed as described above, with one castor device 16.
It is mounted on 16 wheels 2I21 and is moved in the longitudinal direction of the constructed structure. And box frame body I
A slab formwork 26 is mounted on the longitudinal girders 5, 5, and side wall formworks 27.27 are pivoted at both ends of the slab formwork 26 by means of telescoping devices 28.28 to allow free tilting and mowing surfaces 29, 29 to form a moving formwork device such as a culvert.

When moving the shoring of the present invention, as shown in FIGS. 3 and 8, the jacks 19 of one castor device 16 are extended,
Lift the entire box frame 1 via the corner posts 2.2 and attach each post 2.
, 3 is raised, the temporary seat 15.15 inserted under the lever device 6 is removed, the shoring on which the formwork is mounted is supported by the caster device 16.16, and the rail 25.25 is lifted. Push and run to move the shoring to the specified execution position. At that time, if the position in the width direction of the constructed structure of the formwork mounted on the shoring deviates from the predetermined state, as shown in FIGS. 4 and 9, the other castor device 17, 17 A short rail 30.30 for lateral movement in the direction orthogonal to the rail 25 is installed at the lower position of the caster device 17 degrees! Extend the jacks 19 of No. 7 to place the wheels 21.21 on the rails 30.30, and also extend the jacks 1 of one castor device 16.16.
9, so that its wheels 21.21 are raised above the rails 25.25, and the shoring is attached to the other castor assembly 17.25. Supported by I7, the shoring is attached to the rail 30 via the wheels 21.21.
．． Moved on 30, construction + It? The position of the support in the width direction of the item is adjusted.

After determining the position of the shoring, that is, the formwork mounted on it, the height of the frame 1 is adjusted by operating the jacks 19 of the caster device 17.17 to raise the slab formwork 26. Set at a predetermined height position, insert the dowel 15.15 under the lever device 6.6 of each column 2.3, rotate the threaded rod 14 to adjust the tilting of the lever rod 8.8, and lower the seat plate. 9 and the seat body 13 are pressed against the respective seats 15 and 15, and then each caster device +6.
16, 17. Shorten the glossy I9 of 17 to make the wheels 21.2.
Increase 1. Accordingly, each caster device +6. I6,
17.17 rises from the rail 25.30, and each support column 2, 3 has a lever device 6 and a temporary support 15°15, respectively.
It will be directly supported on the floor via the

In this state, concrete is poured, and the accompanying vertical load is shared by each support column 2.3.

After the poured concrete has hardened, will the formwork 2627 be peeled off and moved to the next construction site?
First, the side wall formwork 27.27 is peeled off from the concrete by contracting the expansion device 28, and then the threaded rod 14 of the lever device 6 in each support 2, 3 is rotated, and the lever rod 8 is moved as shown by the chain line in FIG. If it is tilted, each support column 2.3 will lower, the height of the frame l will drop, and the slab formwork 26 will be separated from the concrete. This will happen. In this case, each column 2.3 is subject to a large load due to the concrete that has been placed, so in conventional columns with a screw jack at the lower end, it is very difficult to rotate the screw. As shown in the figure, the screw rod 14 to be rotated can be easily operated by applying a lever.

After peeling off the formwork from the concrete, extend the jacks 19 of each caster system 6 and place the wheels 21 and 21 on the rails 25 and 25, and attach the shoring and formwork to the castor systems 16 and 16. Remove the temporary seats 15.15 inserted under each support column 2.3 so as to apply the weight of the rails 25.25 again.
The top is moved toward the next concrete construction site. Construction will proceed based on the above-mentioned tasks.

(Effects of the Invention) As explained above, the formwork support of the present invention connects columns arranged vertically and horizontally with horizontal frame members to form a rectangular box frame body, and the lower end of each of the columns is is equipped with a lever device in which a screw rod with a seat at its lower end is screwed to one end so that it can be raised and lowered, and the lever is tilted around a horizontal axis. , equipped with a caster device that has wheels that roll in the length direction of the construction structure that can be adjusted up and down, and a caster device that has wheels that roll in the width direction of the construction structure that can be adjusted up and down. Because of this structure, it has the following excellent effects.

(+) A lever device is provided at the lower end of each column of the box frame body, and caster devices that can be raised and lowered are provided on the four corner columns, so
Not only can the shoring move smoothly, but also the large load during concrete pouring can be shared between each support, making the overall weight of the shoring lighter.

(2) By applying a lever, the operation of the screw rod that releases the load due to concrete 1 and pouring carried by each pillar can be easily performed, and work efficiency can be greatly improved.

(3) It is equipped with a caster device that can run in the length direction and width direction of the construction structure, and each caster device can be adjusted up and down, so it can be used not only to move the shoring, but also to perform construction work. It is easy to adjust the movement of the structure in the width direction, which eliminates the need for precise rail installation, and eliminates the need for correction work even if the rail installation is out of alignment. Work that does not require facilities can be done easily and efficiently.

(2) Travel movement, width direction JN joint and concrete placement

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the present invention, Fig. 2 is a front view of the same, Fig. 3 is a side view of main parts showing the state during traveling, and Fig. 4 shows the state when adjusting the width direction. 5 is an enlarged front view showing the lever device, FIG. 6 is a sectional view taken along line AA in FIG. 5, FIG. 7 is an enlarged side view showing the caster device, and FIG. 8 is an enlarged front view showing the lever device. FIG. 9 is an enlarged side view showing the state when traveling, and FIG. 9 is an enlarged side view showing the state when adjusting the width direction. 1... Box frame body 2... Corner pillar 3... Middle pillar 4.
-Horizontal frame material 5...Vertical girder 6...Leverage device 8...
Lever lever IO...Horizontal axis II...Biege member 12...Pin 13...Seat body L4...Screw rod 15...Temporary seat 16.17...Gear wheel device 18...Leg tube I9・・・
・Jacket 20... Pillar 21... Wheel 22
...Bogie 25.30...Rail Fig. 5 Fig. 6 Fig. 7 Fig. 8 Fig. 1 0 5 ] 3 1 5 2]

Claims (1)

[Claims] A rectangular box frame is formed by connecting columns arranged vertically and horizontally with horizontal frame materials, and a threaded rod with a seat at the lower end is screwed into one end of each column so as to be able to rise and fall freely. A lever device was installed in which a lever lever was attached so that it could tilt freely around a horizontal axis, and a wheel that rolled in the length direction of the construction structure was installed on each corner pillar of the above-mentioned pillar so that it could be adjusted up and down. A traveling type formwork shoring device equipped with a caster device and a caster device that has wheels that roll in the width direction of a construction structure and can be adjusted up and down.