JPH01260145A - Vibration stopping anchor device for building and mounting method thereof - Google Patents

Abstract

PURPOSE:To prevent the vibration in the direction of the wall thickness of a lower chord and the breakdown resulting from the vertical cutting force by applying a sleeve to the outside of a bar-like material projected underneath the lower chord so that it is capable of sliding and burying and fixing the sleeve into a foundation. CONSTITUTION:A sleeve 9 is applied to the outside of a bar-like material 10 projected underneath a lower chord 1 of a wall frame so that it is capable of sliding. Hardner such as mortar 15 is filled in advance into a mortar filling hole 14 formed on the surface of a foundation 13. The sleeve 9 is inserted into the hardner to fix the sleeve to the inside of the hole 14. According to the constitution, the vibration in the direction of the wall thickness of the lower chord 1 can be prevented, and the vibration in the vertical direction of the lower chord 1 can be allowed to prevent the breakdown resulting from the vertical cutting force.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to an anchor device for preventing the lower chord of a wall frame from swinging in the wall thickness direction in a building, and a method for attaching the anchor.

Conventional technologyIn the construction method of prefabricated houses, a metal wall frame is fixed to the foundation and wall panels are attached to both the inside and outside of the frame.
As shown in Fig. 3, a rectangular wall frame consisting of the left and right vertical frames (21) (21), an upper chord member (22), and a lower chord member (23) is placed on both ends of the lower chord member (23).
It is fixed to the anchor (24) (24) on the foundation side.

Problems to be Solved by the Invention In the structure of a wall frame as described above, if a force is applied in the wall thickness direction, the lower chord member (23) swings in the direction of the force, causing deformation. It is necessary to prevent this. In this case, if the structure is such that the lower chord member (23) bears the in-plane shearing force, the lower chord member (23)
If the vertical movement of the string member 23) is also stopped, there is a risk that the lower chord member (23) will be destroyed, so it is necessary to allow some range of swing in the vertical direction.

This invention has been made in view of these points, and provides a steady rest anchor device that prevents the swinging of the lower chord member in the direction of the wall thickness and is also easy to install. .

Means for Solving the Problems In order to achieve the above object, the anchor device of the present invention has the following features:
A rod-shaped member (10) protruding below the wall frame lower chord member (1)
) is fitted with a sleeve (9) slidably up and down, and this sleeve (9) is buried in the upper surface of the foundation (13).

In addition, in the installation method of the present invention, the sleeve (9) is fitted onto the rod-shaped member (10) projecting downwardly of the lower chord member (1) of the wall frame so as to be slidable up and down, while the sleeve (9) is fitted onto the upper surface of the foundation (13). A solidifying agent such as mortar (
15), and the sleeve (9) is inserted into this solidifying agent (15) and hardened.

The rod-shaped member (10) protruding downward from the lower chord member (1) is M!
2 (13) It is slidable vertically with respect to the sleeve (9) embedded in the side, which allows movement in the vertical direction, but it is held without moving in the wall thickness direction. be done. In addition, in the installation method of the present invention, a solidifying agent (15) such as mortar is filled into the hole (14) formed on the upper surface of the base (13), and the sleeve (9) is inserted into the hole (14). Because the foundation (13
) There is no need to bury an anchor etc. in advance.

Embodiment In FIGS. 1 and 2 showing an embodiment of this invention, (
1) shows the lower chord member of the wall frame, which is the same as the conventional example shown in FIG. This lower chord material (1)
A bolt hole (4) is pre-formed in the web (3) at an intermediate position in the longitudinal direction of the lower chord member (1).

(5) is a steady rest anchor of the present invention, and this steady rest anchor (5) has a hexagonal bolt head (6) integrally formed at a position slightly above the middle part in the vertical direction. and a male screw (7) is provided above it. This steady rest anchor (5) has a male screw part (
7) into the port hole (4) in the lower chord member (1) from below, and with a nut (8) screwed onto the top thereof,
The tightening is fixed to this lower chord member (1). (9) is a bottomed cylindrical sleeve molded from a synthetic resin material, and this sleeve (9) is attached to the steady rest anchor (5).
The bolt head (6) is fitted onto the rod-shaped portion (10) below the bolt head (6) so as to be vertically slidable. At that time, as shown in Figure 1,
There is a gap (12) between the lower end of the rod-like part (10) and the bottom (11) of the sleeve (9), which is sufficient to allow the rod-like part (10) to move downward.

(13) is a concrete foundation of a building, and a mortar filling hole (14) is previously formed in the upper surface of this concrete foundation (13). Then, the lower chord material (1
) That is, when installing the wall frame, anchors (5) and sleeves (9) are installed in advance on the lower chord (1) side, and the holes (14) are filled with mortar (15) at the site. put.

When installing the wall frame, insert the sleeve (9) into the mortar (15).
) hardens, the sleeve (9) becomes the base (13
) side.

Therefore, although the anchor (5) is movable in the vertical direction with respect to the sleeve (9), it is supported by the sleeve (9) so as not to swing in the left-right direction, that is, in the wall thickness direction. Become.

Effects of the Invention Therefore, according to the present invention, the anchor can prevent the swinging of the lower chord member in the wall thickness direction, and since the anchor can slide vertically with respect to the sleeve buried in the foundation, It has the advantage that vertical swing or bending of the lower chord member can be tolerated, and there is no risk of breakage due to shearing force. In addition, in the installation method of the present invention, the sleeve fitted onto the anchor is inserted into a solidifying agent such as mortar filled in a hole in the foundation and fixed by hardening. There is no need to bury something like an anchor, and since the holes formed in the foundation need only be of approximately the same size, there is an advantage that strict accuracy is not required.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view of the anchor installation part showing an embodiment of the present invention, Fig. 2 is an exploded perspective view of the anchor device of the invention, and Fig. 3 is a view of the wall frame viewed from the front. It is a schematic diagram. (1)...Wall frame lower chord, (5)...Anchor, (9)...Sleeve, (13
)... Concrete foundation, (14)... Mortar filling hole, (15)... Mortar. , Patent applicant: Sekisui House Co., Ltd. Representative Patent Attorney Hisayuki Tarumoto Figure 3

Claims (1)

[Scope of Claims] 1. A steadying anchor for a building, characterized in that a sleeve is vertically slidably fitted onto a rod-shaped member projecting below the lower chord of a wall frame, and this sleeve is buried in the upper surface of the foundation. Device. 2. Fit the sleeve onto the rod-shaped member that protrudes below the lower chord of the wall frame so that it can slide vertically, and fill the hole formed in the upper surface of the foundation with a solidifying agent such as mortar in advance, and then insert the sleeve into this A method for installing a steady rest anchor, which is characterized by inserting it into a solidifying agent and hardening it.