JPH055927U - Weir for concrete splicing part - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to provide a weir board for concrete splicing parts that eliminates the work of forming a notch that engages the unevenness of the deck plate on the weir board at the site and does not need to be removed. .. [Structure] An upper part 1a has a long and thin rectangular parallelepiped shape, and a plurality of protrusions 1b arranged at equal intervals along the longitudinal direction are provided downward on the lower part, and are formed by the protrusions 1b. The shape of the lower end surface is such that it can engage with the unevenness in the direction (strong side direction) orthogonal to the groove direction on the upper surface of the deck plate. In addition, a plurality of through holes 1c arranged in the longitudinal direction are formed on the side surface of the weir plate 1 having the above-described configuration with the axis thereof oriented horizontally. Then, the weir plate 1 is produced in advance in a factory or the like, and the weir plate 1 is arranged at a portion which becomes a concrete joint on a deck plate laid on a steel beam or the like.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a flooring method using a deck plate, and more particularly, to a weir board which is placed in a concrete splicing part and suppresses the concrete which is driven in when concrete is driven on the deck plates which are lined up.

[0002]

[Prior Art]

 In the floor construction method using deck plates, the floor is formed by splicing concrete on the deck plates that are lined up. In other words, the part to be the joint of concrete is divided by a weir board, concrete is driven into the partitioned compartment, the weir board where the concrete is hardened is removed, and the laitance etc. on the surface of the joint seam is removed, and then the next shot is made. Pour concrete up to the weir board placed at the joint. By repeating this, concrete is placed on the deck plate to build a floor using the deck plate.

Since the joints of the concrete are apt to be weak points in the structure, the joints are usually arranged in the direction of the strong side of the deck plate (the direction orthogonal to the groove direction) in consideration of the joint strength. The weir is placed. Therefore, extruded polystyrene foam or the like is conventionally used for the weir, and an operator cuts it on site so that the lower part of the weir engages with the unevenness of the deck plate. Created and used as described above.

[0004]

[Problems to be solved by the device]

 However, in the above-mentioned conventional weir, it is necessary for an operator to cut and use the weir so that the worker can engage with the unevenness of the deck plate on the site, and the incision work is troublesome. In particular, it is necessary to consider the notch for passing the reinforcing bar arranged in the groove direction of the deck plate.

In addition, when the concrete is poured, the concrete is likely to be spilled because it tends to be displaced in the groove direction due to an impact of driving the concrete, and it is necessary to remove the spilled concrete. Become. In addition, after the placed concrete has hardened, it is necessary to remove the dams placed at the joints and then joint the concrete. It takes a lot of time and labor to remove the weir board. There is also the problem that the concrete cannot be driven to the next joint, unless the concrete is hardened and the dam is removed.

The present invention has been made in view of the above problems, and eliminates the work of forming a notch for engaging the unevenness of the deck plate in the field with respect to the weir plate, thereby eliminating the need for the concrete. The purpose is a weir board for concrete joints that does not need to be removed after hardening.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the concrete joint spar board of the present invention is disposed for concrete stop at the joint splice portion of concrete when the concrete is driven on the deck plates laid side by side. It is a weir plate, and has an upper part formed of a rectangular parallelepiped shape that is thin in the lateral direction, and an uneven part that is under the upper part and that can be engaged with the unevenness of the upper surface of the deck plate, and the upper part. It is composed of a PC board consisting of an integrated lower part, and a plurality of through holes that horizontally penetrate the PC board in the width direction are formed at equal intervals in the longitudinal direction of the PC board. It is said that.

[0008]

[Action]

 A pre-fabricated concrete joint splint is placed on the upper surface of the deck plate where it will be the concrete joint. At this time, the lower part of the concrete splicing part weir plate is engaged with the unevenness of the upper surface of the deck plate, and the rebar arranged in the groove direction of the deck plate is passed through the through hole of the weir plate. ..

In this state, concrete is driven up to the jointing portion formed of the concrete jointing weir plate. When the concrete that has been hardened has hardened, concrete is driven to the next joint. Since the weir plate arranged at the splicing part is made of a PC plate, it can be buried in the concrete that has been driven in as it is, and the work for removing the weir plate is omitted.

Further, since the weir board of the present invention is integrated with the concrete that has been driven in, before the concrete that has been driven into one compartment up to the aforementioned weir board is cured, the concrete is put into the compartment up to the next weir board. You can also type in.

[0011]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. First, the configuration of the concrete splicing part weir board 1 will be described. As shown in FIG. 1, the upper part 1a has a long and thin rectangular parallelepiped shape, and the lower part thereof is integrally formed with the upper part 1a to form a long length. A plurality of protrusions 1b arranged at equal intervals along the direction are provided downward, and the shape of the protrusions 1b is engageable with the groove of the deck plate, and the lower portion is the deck plate. The shape is such that it can engage with the unevenness in the direction (strong side direction) orthogonal to the groove direction on the upper surface. In addition, a plurality of through holes 1c arranged in the longitudinal direction are formed on the side surface of the weir plate 1 having the above-described configuration with the axis thereof oriented horizontally.

Then, the weir board 1 having the above-described structure is produced in advance in a factory or the like, and the weir board 1 is used as a concrete seam on a deck plate 2 laid on a steel beam (not shown) or the like. Place it in That is, as shown in FIG. 2, the weir plate 1 is such that the longitudinal direction of the weir plate 1 is aligned with the direction of the strong side of the deck plate 2, and the projection 1b of the weir plate 1 is fitted into the groove 2a of the deck plate 2. It is arranged to be fitted. Then, the plurality of weir plates 1 are arranged along the portion of the deck plate 2 which is to be the seam as shown in FIG. As described above, the weirs 1 are arranged at the portions which become the joints of the concretes.

When installing the weir 1, the rebars 3 arranged along the groove 2a of the deck plate 2 penetrate the through holes 1c of the weir 1, respectively. The through holes 1c serve as separators between the reinforcing bars 3, and spacers 4 are arranged on the reinforcing bars 3 so as to sandwich both side surfaces of the weir plate 1, as shown in FIG. The spacer 4 has a circular shape as shown in FIG. 4, and the reinforcing bar 3 can be sandwiched by inserting the reinforcing bar 3 into the central hollow part 4a through the cutout part 4b. By arranging the spacer 4 as described above, the weir plate 1 is fixed to the rebar 3 and the weir plate 1 does not shift when the concrete is driven, which will be described later.

Note that, in FIG. 2, the reinforcing bar 3 penetrating the through hole 1 c of the weir plate 1 is not shown. After placing the weir plate 1 as described above and covering it with the wire mesh 5 as shown in FIG. 3 for the purpose of strengthening the concrete joint, etc., the concrete 6 is partitioned by the weir plate 1 on the deck plate 2. Drive into the compartment. At this time, since the weir board 1 is fixed to the reinforcing bar 3 by the spacer 4, it does not shift due to an impact at the time of driving the concrete 6, so that the spillage of the concrete 6 at the time of placing the concrete is reduced. The work of removing the spilled concrete 6 becomes easier.

Further, as the poured concrete 6 hardens, the concrete 6 and the weir board 1 made of a PC board become integrated, and it is not necessary to remove the weir board 1. Concrete 6 is sequentially driven into each unit divided by the weir board 1 to construct a floor. At this time, in the past, it was necessary to remove the weir board 1 each time the concrete 6 was spliced, but since the weir board 1 is buried together with the concrete 6, it is necessary to remove it. Is eliminated, and the splicing work of concrete 6 becomes very easy.

Further, conventionally, it was impossible to drive the concrete 6 into the section up to the next splicing section unless the concrete 6 in the section into which the concrete has been driven hardens and the weir board 1 is removed. In this embodiment, since it is not necessary to remove the weir board 1, before the concrete 6 in the section partitioned by a certain weir board 1 is hardened, the concrete 6 can be poured into the compartments up to the next weir board 1. ..

The positions of the through holes 1c of the above-described embodiment provided in the weir plate 1 are merely examples, and may be at other positions, or may be vertically arranged in two stages. In short, it is only necessary to provide a penetrable hole corresponding to the reinforcing bar 3 arranged on the deck plate 2.

[0018]

[Effect of the device]

 As explained above, since the weir board for the concrete splicing part of the present invention is formed of the PC board in advance, it is not necessary to remove the weir board after the concrete is placed, and the efficiency of the concrete splicing work is improved. improves.

[Brief description of drawings]

FIG. 1 is a perspective view showing a weir board for a concrete splicing part according to an embodiment.

FIG. 2 is a perspective view showing a state in which a weir board is attached to a deck plate.

FIG. 3 is a cross-sectional side view showing a relationship between a weir board and a reinforcing bar, and a relationship between driven concrete and a weir board.

FIG. 4 is a perspective view showing a spacer of this embodiment.

[Explanation of symbols]

 1 Cement board for concrete splicing part 1a Upper part 1b Protrusion 1c Through hole 2 Deck plate 3 Reinforcing bar 4 Spacer

Claims (1)

[Claims for utility model registration] [Claim 1] A weir board which is provided for concrete stopping at a jointing portion of concrete when concrete is driven on deck decks laid out, An upper portion formed of a rectangular parallelepiped shape that is long in the lateral direction, and a lower portion that is integrated with the upper portion by forming an uneven shape on the lower side of the upper portion that can engage with the unevenness on the upper surface of the deck plate. And a plurality of through-holes that horizontally penetrate the PC board in the width direction are formed at equal intervals in the longitudinal direction of the PC board. Board.