JP2517230Y2 - Concrete formwork support member - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a supporting member for holding a concrete construction form used when constructing a partition weir or dam of a river.

[0002]

2. Description of the Related Art Generally, an inclined surface of a river dam or a partition weir is formed with different slopes at a lower portion and an upper portion as shown in FIG. When constructing such a structure, the long form supporting members for supporting concrete form (metal foam made of metal is widely used) are changed every time the slope changes. It is carried out. That is, the base portion of the supporting member is held by the joint member such as the connecting bracket prepared separately according to the gradient of the structure to be constructed on the base body such as concrete that has been constructed previously.

[0003]

It is very cumbersome and time-consuming to change the concrete form supporting members each time the slope of the slope is different, and the form supporting members are connected and fixed to the base body. Therefore, there is a problem that a joint member such as a bracket is required, the number of parts is increased, the management is troublesome, and the total cost is high.

Therefore, according to the present invention, when a dam or partition weir having two or more different sloped surfaces is constructed, it can be stably held on the fixed base body without using a joint member for connection, and the slope The purpose of the present invention is to provide a concrete form supporting member that can be used by sequentially sliding it from the lower side to the upper side irrespective of changes in the above conditions, thereby solving the above-mentioned conventional problems.

[0005]

In order to achieve the above object, a concrete form supporting member according to the present invention comprises a bolt insertion opening (3) penetrating toward a concrete construction surface. And a long main strut (1), which is rotatably connected at the lower end of the main strut (1) via a horizontal axis (4) parallel to the concrete construction surface, and the main strut (1) is inserted with a bolt. A relatively short auxiliary strut (2) having a bolt insertion opening (5) similar to the opening (3), and the auxiliary strut (2) and the main strut (1) being rotatable. connect
A horizontal axis (4) parallel to the concrete surface and both of these supports
Any angle from right angle to straight line for pillars (1) and (2)
The structure is composed of a locking means (7) fixed to the.

[0006]

Since the supporting member (A) of the present invention is constructed as described above, when the dam and the partition weir are concrete-constructed as will be described later, the main strut without using other joint members for connection. The auxiliary strut (2) rotatably attached to (1) can be stably held on the fixed base, and the connection angle between the main strut (1) and the auxiliary strut (2) according to the change of the sloped surface. It can be used by sequentially sliding it upwards by changing, and the work of assembling the concrete formwork can be simplified.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4, reference numeral (A) indicates a concrete form supporting member according to the present invention, and the supporting member (A) is a long main pillar (1) and a short auxiliary pillar (2). ) And a metal mold material formed in an angle shape, a channel shape, or an H shape, or a square tube-shaped metal material.

An auxiliary column (2) is rotatably connected at the lower end of the main column (1) via a horizontal axis (4) parallel to the concrete construction surface, and both columns (1) are rotatably connected. ，
(2) is provided with a plurality of bolt insertion openings (3) ... And (5) ... Penetrating toward the concrete construction surface at appropriate intervals in the length direction. These openings (3) and (5) are formed with holes having a diameter into which a bolt can be inserted when the columns (1) and (2) are formed of a single mold material or tubular material. In (1) and (2), two flat long plates or two formwork are arranged side by side, and the side-by-side facings are connected by a cross bar in a ladder shape. , The space formed between the horizontal rails is used. Further, a lock means (7) for preventing the free rotation of the support columns (1) and (2) and fixing them is provided at a connecting portion between the auxiliary support column (2) and the main support column (1). It is provided.

FIG. 4 shows an example of this locking means, in which a plurality of pin insertion holes (8) ... Are arranged along a virtual circle centered on the horizontal axis (4) as the main support column (1) or the auxiliary support column. (2)
, And the pin (10) is inserted from the pin hole (9) formed in the auxiliary column (2) or the main column (1) into this arbitrary pin insertion hole (8) to connect them at a desired angle. It can be fixed in a fixed posture.

A case of constructing a river dam (B) having a cross-sectional shape as shown in FIG. 8 using the concrete formwork support member (A) constructed as described above will be described.
First, when constructing the part (a) of FIG. 8, as shown in FIG. 1, the auxiliary support column (2) is attached to the horizontal fixing base (11) through the bolt insertion opening (5) and the fixing bolt (12). The main support pillar (1) is fixed along with the inclination of the dam to be constructed, and then the posture is stabilized by the locking means (7). Next, the concrete formwork (C) is assembled along the back surface of the main column (1), and the hook bolts (13) are attached.
To fix.

If necessary, the pick tail anchor (1
After reinforcing the main pillars (1) by 4), concrete is poured to a predetermined height and hardened. Then (b) in FIG.
When constructing the part of, the auxiliary column (2) is removed from the fixed base (11) of FIG. 1 to be linear with the main column (1) and fixed by the locking means (7) as shown in FIG. After the auxiliary columns (2) are stably fixed by the anchor bolts (15) embedded in the previously constructed concrete, the concrete formwork (C) is attached in the same manner as above and the concrete is poured. At this time, if necessary, the work scaffold (D) may be attached to the main strut (1) or the auxiliary strut (2) by a bracket (16) or the like.

Next, when constructing the portion (c) of FIG. 8, as shown in FIG. 3, the auxiliary column (2) is replaced with the main column (1).
After rotating to the required angle with respect to and fixing with the locking means (7), the auxiliary columns (2) are fixed by the anchor bolts (15) embedded in the hardened concrete in the upper stage, and the concrete mold is used as described above. The frame (C) ... is attached and concrete is poured. In this way, without using any other fixing joint member,
The support member can be used by sequentially sliding it upward.

The lock means (7) for preventing the free rotation of the main strut (1) and the auxiliary strut (2) in the present invention can take various methods other than the above embodiment. For example,
As shown in FIG. 5, a turnbuckle (17) is provided so as to straddle the main support column (1) and the auxiliary support column (2), and the length of the turnbuckle (17) is adjusted, whereby the horizontal axis (4 ) As a fulcrum, both of the columns (1) and (2) can be rotationally displaced and fixed at the same time, and either the main column (1) or the auxiliary column (2) as shown in FIG. , A plurality of pin holes (20) are provided along the lengthwise direction in the adjusting rod (19) pivotally attached (18) to the auxiliary column (2), and the main column (1) is provided in this arbitrary pin hole (20). The locking means (7) may be constructed by inserting the pin (22) through the hole formed in the protruding boss of FIG.

Although not shown in the drawings, the locking means (7) has, for example, chrysanthemum metal fittings facing each other between the contact surfaces of the main support column (1) and the auxiliary support column (2) shown in FIG. Then, fix the horizontal axis (4) to a tightening bolt, loosen it and change the angle of both columns (1) and (2) to change the relative angle between the chrysanthemum metal fittings. By tightening, the chrysanthemum metal fittings may be meshed with each other to fix the angular postures of the columns (1) and (2), and a ratchet mechanism using a generally known ratchet and ratchet wheel. It is also possible to change and fix the angles of both columns (1) and (2).

Although the representative embodiments of the present invention have been described above, the present invention is not necessarily limited to the structure of the above-mentioned embodiments, and may be appropriately provided that the constituent features of the present invention are provided and the effects are obtained. Of course, it can be changed and implemented.

[0016]

[Effect of the Invention] The concrete form supporting member of the present invention is
Since it is configured as described above, it is possible to stably hold it on the fixed base with auxiliary columns attached to the main columns without using other connecting joint members when constructing concrete for dams and partition weirs. Moreover, by changing the connection angle between the main support column and the auxiliary support column according to the change of the slope surface, it can be used by sequentially sliding it upwards, which simplifies the work of assembling the concrete formwork and reduces the total cost. There is an excellent effect that can significantly reduce

[Brief description of drawings]

FIG. 1 is a side view showing a first usage mode of a support member according to the present invention.

FIG. 2 is a side view showing a second usage mode of the support member.

FIG. 3 is a cross-sectional view showing a third usage mode of the support member.

FIG. 4 is an enlarged side view showing an example of locking means in the support member of the present invention.

FIG. 5 is an enlarged sectional view showing another embodiment of the locking means.

FIG. 6 is a sectional view showing still another embodiment of the locking means.

FIG. 7 is a front view showing an example of a dam to be constructed.

FIG. 8 is a vertical sectional view of the dam.

[Explanation of symbols]

 (1) Main column (2) Auxiliary column (3) Bolt insertion opening (4) Horizontal axis (5) Bolt insertion opening (7) Locking means

Claims (1)

(57) [Scope of utility model registration request] 1. A long main strut (1) having a bolt insertion opening (3) penetrating toward a concrete construction surface, and a lower end of the main strut (1) parallel to the concrete construction surface. Auxiliary post having a bolt insertion opening (5) similar to the bolt insertion opening (3) of the main strut (1), which is rotatably connected via a horizontal axis (4). and (2), the auxiliary strut (2) and the main strut (1) and the times
A horizontal axis parallel to the concrete execution surface that is movably connected
(4) and both of these columns (1), (2) straight from the right angle
A concrete formwork support member comprising a locking means (7) for fixing at an arbitrary angle up to a linear shape .