JPH01105867A - Wall formwork supporter - Google Patents

Abstract

PURPOSE: To simplify installation work by supporting a substantially right-angled triangular form support frame supporting a wall form device on a concrete layer vertically by an anchor embedded in the concrete layer. CONSTITUTION: This device A consists of an anchor 1 embedded in a concrete layer 2, a form support frame 10 supporting a wall form device B on the layer 2 vertically, and a mounting fitting 3 connecting and fixing the frame 10. Next, the anchor 1 is embedded in the layer 2 in a predetermined arrangement condition. Then, a plurality of frames 10 are mounted on a horizontal end thick member 30 of the device B through a support member mounting fitting 50. The device B is raised, arranged at a desired position by a crane, and adjusted by a base jack 16, and then a right-angled corner part of the frame 10 and a tip part of the anchor 1 are mutually connected and fixed by the fitting 3 so that oblique and downward tensile force directed for the anchor 1 acts.

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention is mainly aimed at supporting wall formwork reliably and easily when constructing one-sided formwork such as continuous underground walls. This invention relates to a wall formwork support device that enables

(Prior art) Conventionally, when constructing one-sided formwork for continuous underground walls, etc., for example, steel sheet piles were driven, round separators were welded to the steel sheet piles,
The wall formwork was supported through this round separator and appropriate end pieces. □ (Problems to be solved by the invention) However, with the above-mentioned wall formwork supporting means, the work of installing the wall formwork is relatively troublesome and difficult to perform efficiently, and it is difficult to shorten the construction period and reduce labor costs. The problem was that it was difficult to reduce the amount of Moreover, the concrete wall formed by this method has the disadvantage that water easily leaks from the separator holes.

[Structure of the Invention] (Means for Solving the Problems) Therefore, the present invention provides an anchor 1 that is buried in a predetermined arrangement state in a concrete layer 2 so as to leave a tip end portion, and a wall. The support Yjj material is attached to the formwork device B via the metal fittings 50, and the formwork support frame 1 has a substantially right-angled triangular frame shape that can vertically support the wall formwork device B on the concrete layer 2.
0.

The vertical member 11 is arranged parallel to the wall formwork device B, and the supporting member is attached to the wall formwork device B via the metal fittings 50. A horizontal member 12 is fixed to a lower end portion and is disposed in a direction perpendicular to the wall formwork device B, and a vertical member 11 has an upper end.
a diagonal member 13 fixed to an upper end portion and a lower end fixed to the other end portion of the horizontal member 12; and a vertical member parallel to the vertical member]1;
The jacks fixed to the lower end of the diagonal member 13 and the other end of the horizontal member 12 are attached to member 14, and the jacks are attached to member 1.
4 and a base jack 16 which is height-adjustably attached to the lower end of the vertical member 11 and placed on the concrete layer 2, forming a formwork support frame 10. Furthermore, by forming the anchor 1 at the right-angled corner formed by the lower end of the vertical member 11 and one end of the horizontal member 12 so that it can be connected and fixed via the metal fitting 3, the above-mentioned difficulties can be solved. We made it possible to achieve this.

(Function) Therefore, the anchor 1 is buried in the concrete layer 2 in a predetermined arrangement state, and its tip portion is exposed above the concrete layer 2. The formwork support frame 10 is attached to the wall formwork device B via metal fittings 50 for attaching supporting materials, and the wall formwork device B is supported vertically on the concrete layer 2.

For installation, the metal fittings 3 connect the right-angled corners of the formwork support frame 10 and the anchors 1, and apply a diagonally downward tensile force to the formwork support frame 10 so that the right-angled corners face the anchors 1. This tensile force includes a force that presses the formwork support frame 10 in the vertical direction toward the concrete layer 2 below, and a force that presses the formwork support frame 10 in the horizontal direction toward the wall formwork device B. act.

(Example) Hereinafter, the present invention will be explained with reference to illustrated examples.

A in the figure shows a wall formwork support device of the present invention, and this wall formwork support device A is installed in a concrete layer 2, such as a concrete foundation or a concrete slab, in a predetermined manner so that its leading edge is exposed upward. Anchor 1 buried in the installed state
The supporting material is attached to the wall formwork device B via the metal fittings 50, and the formwork support frame 10 has a substantially right-angled triangular frame shape and can support the wall formwork device B vertically on the concrete layer 2.
and a fitting 3 for connecting and fixing the right-angled corner of the formwork support frame 10 and the tip of the anchor 1.

The anchor 1 has a U-shape on the plane and a substantially dogleg shape on the side. The anchors 1 are placed in the concrete so that the ends thereof are parallel to each other and at an upward angle of about 45° with respect to the horizontal plane. Most of it is buried in layer 2 (
(See Figure 1). Moreover, the anchor 1 exposed above
A predetermined male screw is threaded into each of the tip portions. still,
The anchor 1 may be formed by appropriately bending a threaded rod, or may be formed by appropriately providing a male threaded portion only at the tip of the rod. In the illustrated example, the anchor 1 is shown buried in a concrete layer 2 such as a concrete foundation, but it is buried in a relatively thin concrete layer 2 such as a concrete slab separating an upper floor and a lower floor. anchor 1
When burying the anchor 1, the anchor 1 is passed through an appropriate metal beam material or the like buried in the concrete layer 2, and the anchor 1 is buried so as to obtain sufficient strength (not shown).

For installation, the metal fittings 3 include a long nut-shaped connecting nut 4 that can be screwed onto the tip of the anchor 1, a connecting threaded rod 5 that is screwed onto the connecting nut 4 and can be connected to the anchor 1, and the formwork. A fixing rod 6 that contacts the right-angled corner of the support frame 10 from the inside and has through-holes 6a at both ends thereof through which the connecting screw rod 5 can be inserted, and can be screwed onto the connecting screw rod 5 and fixed It is composed of a tightening nut 7 that can compress the rod 6 toward the anchor 1. Moreover, the connecting threaded rods 5 are disposed so as to sandwich the right-angled corners of the formwork support frame 10 from both sides, and surround the right-angled corners with the fixing rods 6 in a substantially U-shape with no visible inside. is formed.

The formwork support frame 10 is arranged parallel to the wall formwork apparatus B, and the supporting material is attached to a vertical member 11 attached to the wall formwork apparatus B via metal fittings 50, and one end. is fixed to the lower end portion of the vertical member 11 and is disposed in a direction perpendicular to the wall formwork device B;
A diagonal member 13 whose upper end is fixed to the upper end portion of the vertical member 11 and whose lower end is fixed to the other end portion of the horizontal member 12;
1, the lower end portion of the diagonal member 13 and the horizontal member 1
2. The jacks fixed to the other end portion are attached to the member 14, and the jacks are attached to the lower end of the member 14 and the vertical member 11 in a height-adjustable manner, and the base jacks are placed on the concrete layer 2. It consists of 16. Moreover, a right-angled corner is formed by the lower end of the vertical member 11 and one end of the horizontal member 12, and a reinforcing member 15 is provided at this right-angled corner so as to connect the lower end of the vertical member 11 and the one end of the horizontal member 12. are fixed, increasing the strength and rigidity of the entire right-angled corner.

In the figure, 13a is an insertion hole drilled at a predetermined position of the diagonal member 13, 15a is an insertion hole drilled at a predetermined position of the reinforcing member 15, and 17 is fixed near both ends of the horizontal member 12. This clamp metal fitting 17 is for gripping a horizontal thick pipe 18 installed between formwork support frames 10 arranged in parallel.

The wall formwork device B includes a concrete formwork 20, a plurality of thick vertical members 25 attached to the concrete formwork 20 at predetermined intervals, and a thick vertical member 25 via a thick member connecting fitting 45. This wall formwork device B is composed of a plurality of horizontal thick members 30 connected to the vertical members 11, and the supporting members connecting the horizontal thick members 30 and the vertical members 11 are attached to the formwork support frame 10 via metal fittings 50. (See Figure 1).

The vertical end thick member 25 connects a pair of prismatic base members 26.27 arranged in parallel at appropriate intervals, and the base members 26.27, and is arranged diagonally in different directions alternately. (See FIG. 1).

The horizontal thick member 30 includes a pair of substantially groove-shaped steel base members 31.3-
, -2 are arranged in parallel at appropriate intervals, and the base member 31
．． The base members 31 and 32 are arranged such that their open portions face upward and downward, and the base members 31 and 32 are connected to each other via a connecting piece 33 (see FIG. 5). Moreover, a plurality of elongated holes 34 are bored at predetermined intervals in each of the pair of base members 31 and 32 (see FIG. 3).

In the figure, reference numeral 35 denotes a horizontal thick connecting member for connecting the horizontal thick members 30 to each other via the specimen 40, and this horizontal thick connecting material 35 is as follows:
A pair of substrate materials 36 and 37 arranged in parallel at appropriate intervals are connected via a connecting piece 38, and the substrate materials 36.
A plurality of elongated holes 39 into which wedge bodies 40 can be inserted are bored in each of the holes 37 at predetermined intervals. That is, by appropriately selecting the long holes 34 of the horizontal thick members 30 and the long holes 39 of the horizontal thick connecting members 35 and fitting the wedge bodies 40 as appropriate, the pair of horizontal thick members 30 are connected to each other. It is formed so that it can be freely connected via the material 35 and a plurality of specimens 40 (see FIG. 2).

The end piece connecting fitting 45 is a connecting base member 4 that can be attached to the V-shaped groove portion formed by the adjacent diagonal members 28 of the vertical end member 25.
6, a locking hook 47 with a side track shape that can be locked so as to straddle the upper and lower edge portions of the pair of base members 31 and 32 of the thick horizontal timber 30 near the concrete formwork 20, and a connecting base member 46. and a bolt 48 and a nut 49 that connect the pair of locking hooks 47 to each other. The connecting state between the horizontal end member 30 and the horizontal thick member 30 is strong and stable (see FIGS. 1 to 3).

For mounting the support material, the metal fittings 50 can be inserted into the insertion holes 13a drilled in the diagonal member 13 of the formwork support frame 10 and the insertion holes 15a drilled in the reinforcing member 15. 30 pair of base members 31°32 formwork support frame 1
A locking hook 52 with a dogleg shape on the side surface that can be locked so as to straddle the upper and lower edges near zero, and a bolt 53 and a nut 5 that connect both ends of the base rod 51 and the pair of locking hooks 52.
4, and a pair of locking hooks 52 are arranged on both sides of the vertical member 11 of the formwork support frame 10, respectively, to ensure that the connection state between the horizontal thick material 30 and the formwork support frame 10 is strong and It is formed to be stable (see Figures 1 to 3). Incidentally, reference numeral 51a is a bolt insertion hole that is bored at both ends of the base rod 51 and into which a bolt 53 can be inserted.

In the figure, reference numeral 55 denotes a scaffolding plate support fitting attached to the upper part of the vertical thick member 25, and numeral 56 denotes a scaffolding plate installed between the scaffolding plate support fittings 55.

By the way, the wall formwork support device A shown in FIG.
It is configured so that it comes into contact with the Further, the anchor 1 is not limited to the one having a U-shape on a plane road; for example, two parallel appropriately threaded rods may be buried in the concrete layer 2 in a predetermined arrangement state (not shown). ).

The specific configuration, shape, dimensions, material, buried state, and attachment of the anchor 1 are based on the specific configuration, shape, and shape of the metal fitting 3, and the specific configuration, shape, dimensions, and mounting of the support material of the metal fitting 50. The specific configuration, shape, etc. are not limited to those shown in the illustrations, and can be freely set as appropriate.

The present invention is constructed as described above, and an example of its use will be described next. First, the anchor 1 is buried in a concrete layer 2 in a predetermined configuration so that the tip portion is exposed upward. Then, a plurality of formwork support frames 10 are attached to the horizontal thick members 30 of the appropriately configured wall formwork apparatus B via metal fittings 50 at predetermined intervals. Furthermore, a horizontal thick vibrator 1 is attached to the clamp fitting 17 of the formwork support frame 10.
8 is held, and the state of connection between the formwork support frames 10 is made strong. In addition, a scaffolding board support fitting 55 is attached to the upper part of the vertical thick member 25 of the wall formwork device B. Then, the wall formwork device B is erected so that it is supported by the formwork support frame 10, and placed at a desired position by a lifting machine, and the wall formwork device B is placed on the concrete layer 2. Adjust the base jacks 16 of the formwork support frame 10 so that they are perpendicular to . After that, the right-angled corner of the formwork support frame 10 and the tip of the anchor 1 are connected and fixed via the metal fittings 3 (connecting nut 4, connecting screw 5, fixing rod 6, tightening nut 7), and the mold The wall form support device A is installed by applying a diagonally downward tensile force toward the right angle corner of the frame support frame 10. Then, a scaffold board 56 is constructed between the scaffold board support fittings 55. In addition, scaffolding board 5
6, when the scaffold board support metal fittings 55 are attached to the upper part of the vertical thick members 25 of the wall formwork device B, the scaffold plate support metal fittings 55
A scaffold board 56 may be attached between them via a rubber band or the like.

[Effects of the Invention] Therefore, the present invention provides an anchor 1 which is buried in a predetermined arrangement state in a concrete layer 2 so as to leave a tip end portion, and a metal fitting for attaching a supporting member to a wall formwork device B. The formwork support frame 10 is installed through the wall formwork 50 and has a substantially right triangular shape that can support the wall formwork device B vertically on the concrete layer 2. The vertical member 1 is arranged parallel to the device B, and the support member is attached to the wall formwork device B via the metal fittings 50.
1, a horizontal member 12 whose one end is fixed to the lower end portion of the vertical member 11 and is disposed in a direction perpendicular to the wall formwork device B, and whose upper end is fixed to the upper end portion of the vertical member 11 and whose lower end is horizontal. A diagonal member 13 fixed to the other end of the member 12 and a jack that is parallel to the vertical member 11 and fixed to the lower end of the diagonal member 13 and the other end of the horizontal member 12 are attached to the member 1.
4, and the base jack 16 is installed on the lower end of the member 14 and the vertical member 11 in a height-adjustable manner, and is placed on the concrete layer 2. The anchor 1 is attached to the right-angled corner formed by one end of the horizontal member 12 so that it can be connected and fixed via the metal fitting 3, making it easier to install the wall formwork and reducing the work time. Labor savings can be achieved, and labor costs can be definitely reduced by shortening the construction period and reducing the number of man-hours required. Furthermore, there is no need for a separator, no separator holes are formed in the concrete wall, water leakage, etc. are less likely to occur, and an excellent water-stopping effect is exhibited, and repair work on the concrete surface is not required. Furthermore, the work process can be shortened due to the reduction in man-hours. In addition, it is possible to improve the reusability of formwork, improve the accuracy and uniformity of the frame, and reduce the use of materials such as shoring.

In addition, to connect and fix the anchor 1 and the formwork support frame 10, a metal fitting 3 is attached to a connecting nut 4 that can be screwed onto the tip end portion of the anchor l, and a connecting nut 4 that is screwed onto the connecting nut 4 is attached to the anchor 1, respectively. Connectable and formwork support frame 10
A pair of connecting threaded rods 5 are arranged so as to sandwich the right-angled corners of the formwork from both sides, and a through-hole that contacts the right-angled corners of the formwork support frame 10 and into which the connecting screw rods 5 can be inserted into both ends thereof. 6a, and a tightening nut 7 that can be screwed onto the connecting threaded rod 5 and that can compress the fixing rod 6 toward the anchor 1, the anchor 1 and the formwork support frame 10 The connection and fixing work can be performed reliably and easily. Moreover, the tightening of the tightening nut 7 depends on the work.
A diagonally downward tensile force such that the right-angled corner points toward the anchor 1 can be reliably and easily applied to the formwork support frame 10. Furthermore, the connecting threaded rods 5 sandwich the right-angled corners of the formwork support frame 10 from both sides, and the fixing rods 6 surround the right-angled corners in a substantially U-shape.
The state of connection and fixation between the frame and the right-angled corner of the formwork support frame 10 becomes strong and stable.

In particular, at right angle corners of the formwork support frame 10, vertical members 1
By fixing the reinforcing member 15 so as to connect the lower end portion of the horizontal member 12 with the one end portion of the horizontal member 12, the strength and rigidity of the entire right-angled corner are further improved, resulting in excellent durability and increasing the number of times it can be reused. Become something.

Furthermore, by providing the horizontal member 12 of the formwork support frame 10 with a clamp fitting 17 capable of gripping the horizontal thick pipe 18, a horizontal thick vibrator is installed between the formwork support frames 10 arranged in parallel. 18 can be gripped, and the state of connection and fixation between the formwork support frames 10 becomes even more robust. Moreover,
Even if the wall formwork apparatus B is erected or moved by a lifting machine, there is no possibility that the wall formwork apparatus B will be deformed.

[Brief explanation of the drawing]

The drawings illustrate the present invention; FIG. 1 is a side view of the entire device, FIG. 2 is a front view of the entire device, FIG. 3 is a plan view of the entire device, and FIG. 4 is a partially cutaway side view. , FIG. 5 is a partially cutaway side view showing another embodiment. A... Wall formwork support device, 1... Anchor, 2... Concrete layer, 3...
For installation, use metal fittings, 4... Connecting nut, 5... Connecting threaded rod, 6... Fixing rod, 6a... Through hole, 7... Tightening nut, 10... Formwork support frame, 11 ...Vertical member, 12...Horizontal member, 13...Diagonal member, 13a.
...Insertion hole, 14...Jacket mounting is a member, 15...
- Reinforcement member, 15a... Insertion hole, 16... Base jack, 17... Clamp fitting, 18... Horizontal thick pipe, B... Wall formwork device, 20... Concrete formwork , 25... Vertical thick material, 26... Base member, 27...
-Base member, 28...Diagonal member, 30...Horizontal thick member, 31...Base member, 32...Base member, 33...Connecting piece, 34...Long hole, 35-・・Horizontal thick connecting material, 36 ・・Substrate material, 37・・
・Substrate material, 38... Connection piece, 39... Long hole, 40.
... Wedge body, 45 ... Thick material connection fitting, 46 ... Connection base member, 47 ... Locking hook, 48 ... Bolt, 4
9... Nut, 50... Support material installation metal fittings, 51...
...Mounting is done using the base rod, 51a...Bolt insertion hole, 52...
- Locking hook, 53... Bolt, 54... Nut, 55... Scaffolding board support fitting, 56... Scaffolding slope.

Claims (1)

[Claims] 1. An anchor that is buried in a concrete layer in a predetermined manner so as to leave a tip portion; It consists of a formwork support frame in the form of a substantially right-angled triangular frame that can support the formwork device vertically on the concrete layer, and the formwork support frame is arranged parallel to the wall formwork device, and ,
a vertical member that is attached to the wall formwork device via a support attachment fitting; a horizontal member that has one end fixed to the lower end portion of the vertical member and is disposed in a direction perpendicular to the wall formwork device;
A diagonal member whose upper end is fixed to the upper end of the vertical member and whose lower end is fixed to the other end of the horizontal member; and a jack mounting member which is parallel to the vertical member and fixed to the lower end of the diagonal member and the other end of the horizontal member. and is height-adjustably attached to each of the jack mounting member and the lower end portion of the vertical member, and
It consists of a base jack placed on a concrete layer, and is formed so that an anchor can be connected and fixed via a mounting bracket at a right-angled corner formed by the lower end of a vertical member and one end of a horizontal member. Characteristic wall formwork support device. 2. A connecting nut that can be screwed onto each of the anchor tip portions to connect and fix the mounting fittings for connecting and fixing the anchor and the formwork support frame, and a formwork support frame that can be screwed onto the connecting nuts and connected to the anchors respectively, and the formwork support frame. A pair of connecting threaded rods are arranged so as to sandwich the right-angled corners of the formwork from both sides, and a pair of connecting threaded rods are provided in contact with the right-angled corners of the formwork support frame, and each has a through hole at both ends through which the connecting screw rods can be inserted. The wall formwork support device according to claim 1, comprising a fixing rod and a tightening nut that can be screwed onto the connecting threaded rod and that can compress the fixing rod toward the anchor. 3. The wall formwork support device according to claim 1 or 2, wherein a reinforcing member is fixed to a right-angled corner of the formwork support frame so as to connect the lower end portion of the vertical member and one end portion of the horizontal member. 4. The wall form support device according to any one of claims 1 to 3, wherein the horizontal member of the form support frame is provided with a clamp fitting capable of gripping a horizontal thick pipe.