JP2020153089A - Closing connector, closing connector complex, composite structure and construction method of composite structure - Google Patents

Abstract

To provide a technology capable of constructing a composite structure efficiently.SOLUTION: A closing connector 1 which closes an opening part formed between a deck plate stretched between a beam H and a beam H and the beam H includes: a closing part 10 for closing the opening part; a pressing part 20 formed integrally with the closing part 10 and coming into contact with an upper end part of the deck plate; and an engagement part 30 formed integrally with the pressing part 20, protruding to the opposite side from the deck plate with respect to the pressing part 20, and engaged with a concrete material installed at the deck plate.SELECTED DRAWING: Figure 2

Description

The present invention relates to a closed connector, a closed connector composite, a composite structure and a method for constructing the composite structure.

In recent years, a method of arranging a deck plate on a beam formed of H-shaped steel and placing concrete to construct a synthetic structure which is a synthetic slab has become widespread. When constructing a composite structure, a deck plate is laid between the beams, and the deck plate is temporarily fixed to the beam by welding or the like. Next, after closing the fore edge formed between the deck plate and the beam with a closing member (krosa), reinforcement work is performed, and then a concrete material is placed (see, for example, Patent Document 1).

JP-A-2018-87435

When implementing the construction method for constructing a synthetic structure, the concrete material flows out from the edge formed between the deck plate and the beam on which both ends of the deck plate are placed during the concrete placing work. It is necessary to close the fore edge to prevent it from happening.

In addition, it may be necessary to weld a headed stud to the beam in order to improve the bondability between the beam and the concrete material. As a result, there were steps performed by different vendors in the series of work steps for constructing the synthetic structure, from the laying of the deck plate to the placement of the concrete material. That is, in the construction work of the synthetic structure, work processes in different specialized industries occur, and there is a demand for rationalizing the construction of the synthetic structure.

Therefore, the present invention has been made based on the above problems, and an object of the present invention is to provide a technique capable of efficiently constructing a synthetic structure.

In order to solve the above problems, the present invention is a closing connector for closing an opening formed between a deck plate bridged between beams and the beam, and the opening is closed. A closing portion to be closed, a pressing portion integrally formed with the closing portion and in contact with the upper end portion of the deck plate, and a pressing portion integrally formed with the pressing portion and protruding to the side opposite to the deck plate with respect to the pressing portion. The deck plate is provided with an engaging portion that engages with the concrete material placed on the deck plate.

Further, the engaging portion may have at least one opening.

Further, the engaging portion may have a bent portion that is bent so as to change the extending direction at the free end portion.

Further, the closing portion may have a pair of contact pieces that extend in a direction along the longitudinal direction of the deck plate and come into contact with the deck plate when the opening is closed.

Further, a locking portion that is integrally formed with the closing portion and is locked to the beam may be provided.

Further, even if the locking portion has a mounting portion to be mounted on the beam and a pressing portion for pressing the beam from a side opposite to the side on which the previously described mounting portion is mounted. Good.

The pressing portion may be elastically deformable with respect to the previously described placement portion.

Further, in order to solve the above problems, the closed connector composite according to the present invention has a closed portion that closes an opening formed between the deck plate bridged between the beams and the beam. And at least two having an engaging portion integrally formed with the closing portion, projecting to the side opposite to the beam with respect to the closing portion, and engaging with the concrete material cast on the deck plate. It is characterized by including one closing connector and a connecting member that connects the at least two closing connectors.

Further, in order to solve the above problems, the present invention relates to a deck plate bridged between beams, a concrete structure provided on the deck plates, and between the deck plates and the beams. A synthetic structure comprising a plurality of closing connectors for closing an opening formed in, wherein the closing connector is integrally formed with the closing portion for closing the opening and the closing portion. It is characterized by having an engaging portion that protrudes to the side opposite to the beam and engages with the concrete material cast on the deck plate.

Further, in order to solve the above problems, the present invention relates to a deck plate bridged between beams, a concrete structure provided on the deck plates, and between the deck plates and the beams. A closing portion that closes the opening formed in the above, and a concrete material that is integrally formed with the closing portion and projects to the side opposite to the beam with respect to the closing portion and is placed on the deck plate. A method of constructing a composite structure comprising a closing engagement portion comprising a mating engaging portion, wherein the closing connector is attached to the beam and the opening is closed by the closing portion of the closing connector. As described above, the deck plate is provided with a step of bridging the deck plate between the beams and a step of placing a concrete material on the deck plate.

According to the present invention, a synthetic structure can be efficiently constructed.

It is a perspective view which shows the synthetic slab structure which concerns on embodiment of this invention with a partial cross section. It is a perspective view of the closed connector which concerns on this invention. It is the schematic which shows the process of attaching the closing connector which concerns on this invention to the flange of a beam. It is the schematic which shows the process which bridges a deck plate over a beam. It is the schematic which shows the process of installing a reinforcing bar on a deck plate. It is the schematic which shows the casting process of placing a concrete material on a deck plate. It is a perspective view of the closed connector composite. It is a perspective view of the closed connector which concerns on a modification. It is the schematic for demonstrating the construction process of the conventional synthetic slab structure.

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

The closed connector according to the present invention prevents concrete from flowing out from between the beam and the deck plate when constructing the synthetic slab structure (synthetic structure), and is applied to the deck plate in the synthetic slab structure. The deck plate to which the closing connector according to the present invention is applied is a known deck plate, and is not limited to a specific deck plate. For example, the closed connector 1 according to the embodiment of the present invention is applied to the deck plate 110 in the synthetic slab structure 100 shown in FIG.

The beam H over which the deck plate 110 of the synthetic slab structure 100 is bridged is made of H-shaped steel and has a pair of flanges H1 (only one flange is shown) and a web H2. The web H2 is provided between the pair of flanges H1 so as to connect the pair of flanges H1. The pair of flanges H1 are arranged so that their main surfaces are parallel to each other in the horizontal direction. The deck plate 110 is placed on the flange H1 on the upper side of the beam H. Further, the beam H is not limited to H-section steel as long as the closing connector 1 can be installed, and if it is a steel beam such as other shaped steel, built H material other than shaped steel, lattice material, truss material, etc., the shape and molding The method is not limited.

FIG. 1 is a perspective view showing a partially cross-sectional view of the synthetic slab structure 100 according to the embodiment of the present invention. The synthetic slab structure 100 is a floor structure in which the deck plate 110 bridged between the beams H and the beam H is integrated with the concrete structure portion 120 to act as a tensile reinforcing bar.

The synthetic slab structure 100 includes a deck plate 110, a concrete structure portion 120, and a bar arrangement portion 130. The deck plate 110 is made of a thin steel plate. The deck plate 110 is bridged to the beam H at both ends in the longitudinal direction (extending direction). The deck plate 110 has a plurality of flat portions 111 and a plurality of undulating portions 112. Flat portions 111 and undulating portions 112 are alternately arranged in the width direction intersecting the longitudinal direction of the deck plate 110.

The deck plate 110 is placed on the flange H1 of the beam H at the flat portion 111. The undulating portion 112 has two inclined surface portions 113 and one upper end surface portion (upper end portion) 114. The inclined surface portion 113 extends obliquely upward from the adjacent flat portion 111 so as to approach each other in a state where the deck plate 110 is placed on the flange H1. The upper end surface portion 114 connects the upper ends of the inclined surface portions 113 to each other. In a state where the deck plate 110 is placed on the flange H1, an edge (opening) 200 is formed between the undulating portion 112 of the deck plate 110 and the flange H1 of the beam H. The edge 200 has a substantially trapezoidal shape.

The concrete structure portion 120 is provided on the deck plate 110. The concrete structure portion 120 is a concrete layer formed by placing a concrete material on the deck plate 110. The concrete structure portion 120 functions as a floor structure portion, a ceiling structure portion, a roof structure portion, or a wall structure portion in a building structure.

The reinforcing bar 130 is provided in the concrete structure 120. The reinforcing bar 130 has a plurality of reinforcing bars 131. The plurality of reinforcing bars 131 are combined in a grid pattern. Reinforcing bars 130 are provided at predetermined intervals with respect to the deck plate 110. The reinforcing bar 131 may be a welded wire mesh.

The closed connector 1 according to the present invention is applied to the deck plate 110 in the synthetic slab structure 100 as described above. The closing connector 1 prevents the edges 200 formed at both ends of the deck plate 110 bridged between the flanges H1 of the beam H. The closing connector 1 is locked to the beam H, and closes the edge 200 so that the concrete material does not flow out from the edge 200 when the concrete is placed. The closing connector 1 closes the edge 200 formed between the deck plate 110 and the beam H bridged between the beam H and the beam H. The closing connector 1 is integrally formed with the closing portion 10 for closing the edge 200, the pressing portion 20 formed integrally with the closing portion 10 and in contact with the upper end surface portion 114 of the deck plate 110, and the pressing portion 20 integrally formed with the pressing portion 20. On the other hand, an engaging portion 30 that protrudes to the side opposite to the deck plate 110 and engages with the concrete material cast on the deck plate 110 is provided. Hereinafter, the configuration of the closed connector 1 will be specifically described.

FIG. 2 is a perspective view of the closed connector 1 according to the present invention. For convenience of explanation, in the drawings, the width direction W of the closing connector 1 is defined as the direction along the extending direction of the beam H with reference to the state in which the closing connector 1 is attached to the beam H. Further, the direction intersecting the extending direction of the beam H is the front-rear direction FB of the closing connector 1, and the side facing the deck plate 110 forming the closing edge 200 in the front-rear direction FB is the front side F. The opposite side is the posterior side B. Further, the direction in which the web H2 extends is the vertical direction UD, the side facing the flange H1 on which the deck plate 110 is placed is the upper side U, and the side facing the other flange H1 is the lower side D.

The closing connector 1 is formed of a steel plate or the like, and has a closing portion 10, a pressing portion 20, an engaging portion 30, and a locking portion 40. In the closing connector 1, the closing portion 10, the pressing portion 20, the engaging portion 30, and the locking portion 40 are integrally formed. The closing portion 10, the pressing portion 20, the engaging portion 30, and the locking portion 40 are classified based on their respective functions for convenience, and are actually formed continuously.

The closing portion 10 closes the fore edge 200. The closed portion 10 has a shape corresponding to the edge 200, and is formed in a substantially trapezoidal shape in the present embodiment. The closing portion 10 has an upper end edge portion 11 facing the upper side U, a lower end edge portion 12 facing the lower side D, and a pair of side end edge portions 13 facing the width direction W. The closing portion 10 closes the fore edge 200 in a region defined by an upper end edge portion 11, a lower end edge portion 12, and a pair of side end edge portions 13.

The upper end edge portion 11 and the lower end edge portion 12 extend along the width direction W. Each of the pair of side edge portions 13 extends in the vertical direction UD between the upper end edge portion 11 and the lower end edge portion 12. The pair of side edge portions 13 extend from the lower end edge portion 12 toward the upper end edge portion 11 so as to approach each other.

The closing portion 10 has a pair of contact pieces 14 (only one contact piece 14 is shown). The contact piece 14 stands upright against the closed portion 10. The contact piece 14 comes into contact with the deck plate 110 when the closing connector 1 closes the edge 200. Specifically, the contact piece 14 comes into contact with a pair of inclined surface portions 113 of the undulating portion 112 facing each other (hereinafter, also referred to as "inner surface"). The contact piece 14 extends along the side edge portion 13 of the closing portion 10 in the vertical direction UD, and extends from the side end edge portion 13 toward the front side F. The contact piece 14 is elastically rotatable in the width direction W with respect to the closed portion 10 at the side end edge portion 13. As a result, the contact piece 14 elastically contacts the inner surface of the inclined surface portion 113 of the undulating portion 112 of the deck plate 110.

The pressing portion 20 is integrally formed at the closing portion 10 and the upper end edge portion 11. The pressing portion 20 extends to the front side F at a substantially right angle to the closing portion 10. The pressing portion 20 is elastically rotatable with respect to the closing portion 10. In this case, a fixing mechanism for restraining the rotation of the pressing portion 20 may be provided as needed.

When the closing connector 1 closes the edge 200, the pressing portion 20 is in contact with the upper end surface portion 114 of the deck plate 110 from the upper side U, and presses the deck plate 110 against the lower side D toward the flange H1 at the upper end surface portion 114. ing. A gap is provided between the contact piece 14 and the pressing portion 20 so that the upper end surface portion 114 of the deck plate 110 can enter.

The engaging portion 30 protrudes from the closing portion 10 on the side opposite to the beam H (upper side U) and engages with the concrete structure portion 120. The engaging portion 30 extends to the upper side U at a substantially right angle from the end portion of the pressing portion 20 on the side opposite to the side connected to the closing portion 10 (front side F). The engaging portion 30 has an opening 31. The opening 31 is formed so as to penetrate the closing connector 1 in the thickness direction (front-rear direction FB). In the present embodiment, one substantially rectangular opening 31 is formed in the engaging portion 30, but the shape of the opening 31 is not limited to this, and may be circular or elliptical. A plurality of openings 31 may be provided. When the concrete material is placed, the concrete material flows through the opening 31. As a result, the closing connector 1 engages with the concrete material at the engaging portion 30.

The locking portion 40 is integrally formed at the closing portion 10 and the lower end edge portion 12. The closing connector 1 is hooked on the flange H1 of the beam H from the front side F at the locking portion 40, and is locked to the beam H. The closing portion 10 is elastically rotatable in the front-rear direction FB with respect to the locking portion 40. In this case, a fixing mechanism (not shown) that restrains the rotation of the closing portion 10 may be provided as necessary.

The locking portion 40 has a mounting portion 41 and a pressing portion 42. The closing connector 1 is mounted on the flange H1 at the mounting portion 41. The mounting portion 41 extends continuously from the lower end edge portion 12 of the closed portion 10 to the front side F. The tip portion 43 of the mounting portion 41 extends in the front-rear direction FB from the end portion of the pressing portion 20 to which the engaging portion 30 is connected to the side away from the closing portion 10, that is, the front side F. The tip 43 of the mounting portion 41 is bent downward D by approximately the thickness of the flange H1.

The pressing portion 42 presses the flange H1 from the lower D on the side opposite to the surface facing the upper U of the flange H1 on which the mounting portion 41 is placed. The pressing portion 42 extends from the tip portion 43 of the mounting portion 41 to the side of the closing portion 10 (rear side B). The tip 44 of the posterior side B of the pressing portion 42 extends beyond the closed portion 10 to the posterior side B. The pressing portion 42 is elastically rotatable in the vertical direction UD at the tip portion 43 of the mounting portion 41. In this case, a fixing mechanism (not shown) that restrains the rotation of the pressing portion 42 may be provided as necessary. In a state where the closing connector 1 cannot be attached to the flange H1 of the beam H, the pressing portion 42 approaches the mounting portion 41 from the tip portion 43 of the mounting portion 41 toward the posterior side B. ..

Next, a method of constructing the synthetic slab structure 100 will be described. The construction method described below is an example of a method for constructing the synthetic slab 100. FIG. 3 is a schematic view showing an attachment process for attaching the closing connector 1 to the flange H1 of the beam H. FIG. 4 is a schematic view showing a bridging process of bridging the deck plate 110 over the beam H. FIG. 5 is a schematic view showing a reinforcing bar arrangement process for installing the reinforcing bars 131 on the deck plate 110. FIG. 6 is a schematic view showing a placing process of placing a concrete material on the deck plate 110.

First, the closing connector 1 is locked to the beam H at the flange H1 (mounting step). Specifically, the closing connector 1 is attached at the position of the flange H1 on which the undulating portion 112 of the deck plate 110 to be bridged is arranged. When the closing connector 1 is attached to the flange H1 of the beam H, the tip portion 44 of the holding portion 42 is expanded with respect to the mounting portion 41 so that the flange H1 is sandwiched between the mounting portion 41 and the holding portion 42. , Attach the closing connector 1 (see FIG. 3).

Next, the deck plate 110 is bridged between the beams H so that the edge 200 is closed by the closing portion 10 of the closing connector 1 (crossing step). First, one end of the deck plate 110 in the extending direction is brought closer to the closing connector 1 from diagonally above. At one end of the deck plate 110, the undulating portion 112 faces the closing portion 10 to lower the other end of the deck plate 110 (see FIG. 4). In this state, the contact piece 14 of the closing portion 10 enters the inside of the inclined surface portion 113 of the undulating portion 112 of the deck plate 110 and comes into contact with the inner surface of the inclined surface portion 113. Since the contact piece 14 is elastically rotatable in the width direction W, the contact piece 14 reliably contacts the inner surface of the inclined surface portion 113.

The deck plate 110 approaches the closing portion 10 while contacting the engaging portion 30 of the closing connector 1 at the other end. The closing portion 10 elastically rotates to the rear side B in the direction away from the deck plate 110 in the front-rear direction FB. By placing the deck plate 110 on the flange H1 at the other end, the closure 10 elastically returns to its original state, and the undulation 112 at the other end of the deck plate 110 is placed on the closing connector 1. It will be in a state of facing each other. In this state, the edges 200 at both ends of the deck plate 110 are closed by the closing portions 10 of the closing connector 1. In this state, the pressing portion 20 presses the deck plate 110 toward the flange H1 on the upper end surface portion 114.

Next, the reinforcing bars 131 are arranged on the engaging portion 30 to install the reinforcing bars 130 in which the reinforcing bars 131 are assembled in a grid pattern (reinforcing bar arrangement step, see FIG. 5). After the bar arrangement process is completed, a concrete material is placed on the deck plate 110 to form the concrete structure portion 120 (see the placing process, FIG. 6). This completes the process of constructing the synthetic slab structure 100.

According to the closed connector 1 having the above configuration, some operations conventionally performed in different work processes can be combined into one operation, and the synthetic slab structure 100 can be efficiently constructed.

As shown in FIG. 9, the conventional method for constructing the synthetic slab structure 200 has a plurality of steps (first to seventh steps). FIG. 9 is a schematic view for explaining a process of constructing a conventional synthetic slab structure. FIG. 9A shows a bridging step (first step) straddling between the beam H and the beam H. FIG. 9B shows a temporary fixing step (second step) in which the bridged deck plate 110 is welded to the beam H at the flat portion 111 and temporarily fixed. FIG. 9C shows a fore-edge closing step (third step) for closing the fore-edge 200 with a closing cover. FIG. 9D shows a welding bank (fourth step) in which a plurality of headed studs S are welded to the beam H in order to join the beam H and the concrete structure portion 120. Further, although not shown, an arrangement step of arranging spacers on the deck plate 110 (fifth step), a reinforcing bar arrangement step of assembling reinforcing bars 131 in a grid pattern on the deck plate 110 (sixth step), and a concrete material are added. There is a placing step (seventh step) of placing on the deck plate 110.

Conventionally, temporary fixing of the deck plate 110 and the beam H in the synthetic slab structure is performed by welding (second step), and a plurality of heads are attached for the purpose of integrating the concrete structure portion 120 and the beam H. The stud had to be welded to the beam H along the longitudinal direction (4th step). On the other hand, if the closed connector 1 is used, at least the welding work of temporary fixing and the headed stud can be significantly reduced.

Since the closed connector 1 according to the present invention integrally has the closed portion 10, the pressing portion 20, and the engaging portion 30, when the synthetic slab structure 100 is constructed using the closed connector 1, the closed connector 1 is used. Multiple functions are provided. Specifically, in addition to the function of closing the edge 200 by the closing portion 10, the function of temporarily fixing the deck plate 110 to the beam H by the pressing portion 20 is provided. The deck plate 110 is pressed against the lower side D toward the beam H at the upper end surface portion 114 of the undulating portion 112 by the pressing portion 20.

Further, since the engaging portion 30 of the closing connector 1 according to the present invention 1 has an opening 31, it has a function of engaging with the concrete material and a function of joining the beam H, the deck plate 110, and the concrete structure portion 120. And a spacer function for the reinforcing bar 130 is provided. By using the closed connector 1 according to the present invention, the second to fifth steps in the conventional construction method can be carried out in one step of the bridging step.

Further, a contact piece 14 is provided at the closing portion 10 of the closing connector 1. The contact piece 14 guides the deck plate 110 with respect to the closing portion 10 when closing the fore edge 200 by the closing portion 10, and elastically contacts the inner surface of the inclined surface portion 113 of the undulating portion 112 when the fore edge 200 is closed. Therefore, it is possible to reliably prevent the outflow of concrete from the edge 200.

Further, since the closing connector 1 has the locking portion 40, it can be easily attached to the flange H1 of the beam H. Since the holding portion 42 of the locking portion 40 is elastically rotatable, the closing connector 1 can be easily and surely fixed to the flange H1 by the clamping action.

As described above, according to the closed connector 1 according to the present invention, when the synthetic slab structure 100 is constructed, it can be easily attached to the flange H1 of the beam H, and when the step of connecting the deck plate 110 is completed, At least, the temporary fixing of the deck plate 110 to the beam H, the closure of the fore edge 200, the measures for joining the beam H and the deck plate 110, and the measures for installing the reinforcing bar 130 are completed. That is, the closed connector 1 can greatly improve the efficiency of construction of the synthetic slab structure 100.

Although the preferred embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and includes all aspects included in the concept of the present invention and the scope of claims. In addition, each configuration may be selectively combined as appropriate so as to achieve at least a part of the above-mentioned problems and effects. For example, the shape, material, arrangement, size, etc. of each component in the above embodiment can be appropriately changed depending on the specific usage mode of the present invention.

For example, in the above embodiment, the closed connector 1 is used alone, but a closed connector composite 6 having two closed connectors 1 may be used. FIG. 7 is a perspective view of the closed connector composite 6. The closed connector composite 6 has two closed connectors 1 and a connecting member 61. The connecting member 61 is, for example, a metal rod-shaped member. The connecting member 61 connects each closing connector 1 at the side end edge portion 13 of the closing portion 10. The connecting member 61 is connected to the boundary portion between the closing portion 10 and the pressing portion 20, but the connecting position is not particularly limited. Further, although the closed connector composite 6 in the present embodiment has two closed connectors 1, it may have three or more closed connectors 1. According to the closed connector composite 6, not only the same effect as that of the closed connector 1 can be obtained, but also a plurality of closed connectors 1 can be locked to the beam H by one work, and the work efficiency is further improved.

Further, although the engaging portion 30 has an opening 31 in the above embodiment, an engaging action with a concrete material may be achieved by another configuration. FIG. 8 is a perspective view of the closed connector 7 according to a modified example of the closed connector 1. Hereinafter, only the portion of the closed connector 7 that is different from the closed connector 1 will be described, and the same components as those of the closed connector 1 will be designated by the same reference numerals and description thereof will be omitted.

The closing connector 7 has a closing portion 10, a pressing portion 20, an engaging portion 50, and a locking portion 40. The closed connector 7 has a different structure of the engaging portion 50 from the closed connector 1. The engaging portion 50 of the closing connector 7 has a folded-back portion 51. The folded-back portion 51 is provided at the free end portion of the engaging portion 50 on the side opposite to the pressing portion 20 (upper side U), and is folded back toward the closed portion 10. The folded-back portion 51 extends substantially parallel to the pressing portion 20. The folded-back portion 51 improves the bondability with the concrete structure portion 120, and the reinforcing bar 131 can be placed on the folded-back portion 51. The opening 31 of the closing connector 7 may or may not be provided.

Further, in the above embodiment, the pressing portion 20 is elastically deformable with respect to the closing portion 10, and the closing portion 10 is elastically deformed with respect to the locking portion 40 in the front-rear direction FB. The pressing portion 42 is elastically deformable in the vertical direction UD at the tip portion 43 of the mounting portion 41, but the closing connectors 1 and 7 are not elastically deformed by themselves. It may be. Even in this case, the deck plate 110 can be bridged to the beam H to which the closing connectors 1 and 7 are fixed, and the edge 200 can be reliably closed by the closing connectors 1 and 7.

Further, in the above embodiment, the pressing portion 20 is only in contact with the upper end surface portion 114 of the deck plate 110, but for example, additionally, the closing connector 1 is welded at the pressing portion 20 to the deck plate. It may be joined to 110.

Further, in the above-described embodiment, the closing connector 1 is only fitted with the flange H1 at the locking portion 40, but for example, additionally, the closing connector 1 is welded from the side of the holding portion 42 to form the closing connector 1. It may be joined to the flange H1 of the beam H, or may be joined to the flange H1 of the beam H by a bolt.

1,7 Closed connector,
10 Closed part 14 Contact piece 20 Pressing part 30 Engaging part 31 Opening 40 Locking part 41 Mounting part 42 Holding part 50 Engaging part 51 Folding part 6 Closed connector composite 61 Connecting member 100 Synthetic slab structure (synthetic structure)
110 Deck plate 120 Concrete structure 130 Reinforcement

Claims (10)

A closing connector for closing an opening formed between a beam and a deck plate bridged between the beams and the beam.
A closure that closes the opening,
A pressing portion integrally formed with the closing portion and in contact with the upper end portion of the deck plate,
An engaging portion that is integrally formed with the pressing portion, projects to the side opposite to the deck plate with respect to the pressing portion, and engages with the concrete material placed on the deck plate.
A closed connector characterized by being equipped with. The closed connector according to claim 1, wherein the engaging portion has at least one opening. The closing connector according to claim 1 or 2, wherein the engaging portion has a bent portion that is bent so as to change the extending direction at the free end portion. The closed part
The invention according to any one of claims 1 to 3, wherein the deck plate has a pair of contact pieces that extend in a direction along the longitudinal direction and come into contact with the deck plate when the opening is closed. Described closure connector. The closing connector according to any one of claims 1 to 4, further comprising a locking portion integrally formed with the closing portion and locked to the beam. The locking portion is
The mounting site to be mounted on the beam and the mounting site
A pressing part that presses the beam from the side opposite to the side on which the previously described placing part is placed,
The closed connector according to claim 5, wherein the connector is provided. The closed connector according to claim 6, wherein the holding portion is elastically deformable with respect to the previously described placing portion. The closing portion that closes the opening formed between the deck plate bridged between the beams and the beam, and the beam that is integrally formed in the closing portion and is formed with respect to the closing portion. At least two closing connectors with engaging portions that project to opposite sides and engage the concrete material placed on the deck plate.
A connecting member that connects the at least two closing connectors,
A closed connector complex characterized by: The deck plate that spans between the beams and
The concrete structure provided on the deck plate and
A plurality of closing connectors that close the opening formed between the deck plate and the beam.
A synthetic structure comprising
The closed connector
A closure that closes the opening,
An engaging portion that is integrally formed with the closed portion and protrudes from the closed portion to the side opposite to the beam and engages with the concrete material placed on the deck plate.
A synthetic structure characterized by having. The deck plate that spans between the beams and
The concrete structure provided on the deck plate and
A closing portion that closes an opening formed between the deck plate and the beam, and a deck plate that is integrally formed with the closing portion and projects to the side opposite to the beam with respect to the closing portion. A closed connector with an engaging part that engages with the concrete material placed in the
It is a method of constructing a synthetic structure including
The process of attaching the closing connector to the beam and
A step of bridging the deck plate between the beams so that the opening is closed by the closing portion of the closing connector.
The process of placing concrete material on the deck plate and
A method for constructing a synthetic structure, which comprises.

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