JPH0635737B2 - How to attach stones to concrete members - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a method of attaching a stone material to a concrete member applied to a PC curtain wall or the like in which concrete is layered on a stone material such as natural stone or artificial stone. .

(Prior Art) Conventionally, in this type of method, as shown in FIGS. 3 and 4, an anchor bolt (c), a shear connector (d) ) Etc. are fitted to the tip of a stone material binding metal fitting, and the stone material (a) and the concrete (e) cast on the back surface of the stone material (a) are tightly bonded together through the binding material.

At this time, due to the dry shrinkage of concrete (e) and the stress caused by the difference in the amount of temperature deformation between stone and concrete,
A stress buffer layer (f) made of a material having a small elastic coefficient is generally provided at the boundary between the stone and concrete so that the stone is not cracked or separated.

(Problems to be solved by the invention) However, in the above-mentioned conventional method, when arranging the reinforcing bar of the concrete part after mounting the stone binding metal fitting, the workability is poor because the reinforcing rod and the stone binding metal fitting are entangled with each other. There is a point.

(Means for Solving the Problems) The present invention has been proposed in order to solve the above problems, in which both ends of the horizontal portion that also serves as the spacer are twisted by about 90 ° to extend a pair of vertical leg pieces. Insert the ends of the vertical leg pieces in the stone fastener to be installed into the mounting holes drilled in the concrete placing surface of the stone, and then attach the rebar to the horizontal member that also serves as the spacer in the stone fastener. Then, the present invention relates to a method of mounting a stone material in a concrete member, which comprises placing concrete on the stone material.

(Operation) In the stone fastening member used in the present invention, since both ends of the spacer / horizontal portion are twisted by approximately 90 ° to extend the pair of vertical leg pieces, the twisted portion forms a spring portion. Therefore, the tips of the two vertical legs are easily fitted to the concrete placing surface of the stone material.

Thus, after the stone fastening metal fitting is attached to the stone material, the reinforcing bar is set on the horizontal metal piece that also serves as a spacer in the metal fitting, and concrete is poured into the same to integrate with the stone material.

(Embodiment) (A) is a stone fastener, and both ends of the horizontal part (1) that also serves as a spacer are twisted by about 90 ° to extend a pair of vertical leg parts (2) and (2). A stone engaging piece (3) is bent at the tip of the leg piece (2). (See FIG. 2) Then, the stone engaging piece (3) at the tip of the pair of vertical leg pieces (2) in the fastener (A) is drilled on the concrete placing surface of the stone (B). It is engaged with the mounting hole (4) and is attached to the stone fastening fitting (A) on the stone (B).

At this time, since the both-end twisted portions (5) of the horizontal portion (1) also serving as a spacer of the metal fitting (A) form the spring portion, elasticity is imparted to the vertical leg pieces (2), and the vertical leg pieces (2) are given elasticity. The fitting work of the tip stone engaging piece (3) of (2) into the mounting hole (4) of the stone (B) is easily performed.

Next, by setting the reinforcing bar (6) on the horizontal part (1) that also serves as a spacer in the stone fastener (A), the reinforcing bar (6) is set.
(6) After the bar is accurately arranged at a predetermined position, concrete (C) is placed on the stone (B) to integrate the concrete (C) and the stone (B).

In the figure, (D) is a stress buffer layer.

(Effects of the Invention) According to the present invention, as described above, the both ends of the spacer / horizontal part are twisted by about 90 °, and a pair of vertical leg pieces is used to extend a pair of stone fittings. The spacer is also used so that the bar arrangement work after the stone fastener is attached to the stone can be easily and easily performed.

Further, by the twisting portions provided at both ends of the horizontal member also serving as a spacer in the stone fastening metal, elasticity is imparted to the vertical leg piece continuously provided to the horizontal piece through the twisting portion, and The mounting work for the mounting hole of the stone becomes easy.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing an implementation state of an embodiment of a method for mounting a stone material on a concrete member according to the present invention, FIG. 2 is a front view of a stone material fastening fitting, and FIGS. It is a longitudinal section showing a method. (A) …… Stone material fastening fitting, (B) …… Stone material (C) …… Concrete, (1) …… Spacer and horizontal part (2) …… Vertical leg piece, (4) …… Mounting hole, ( 5) ... twisting part

Claims (1)

[Claims] 1. Both ends of a horizontal part that also serves as a spacer are approximately 90.
゜ Twist the two vertical leg pieces in a stone fastener to extend the ends of the two vertical leg pieces into the mounting holes formed in the concrete placing surface of the stone, and then fasten the stone pieces. A method for mounting a stone material in a concrete member, which comprises placing a reinforcing bar on a horizontal member also used as a spacer in a metal fitting, and then placing concrete on the stone material.