JPH0665812B2 - Positioning structure of foundation and wall installed on the foundation - Google Patents

Description

TECHNICAL FIELD The present invention relates to a foundation in a building structure and a wall positioning structure installed on the foundation.

(Prior Art) When installing a wall constituent material on a foundation at a construction site, conventionally, the foundation or the wall constituent material was marked, or the wall constituent material was placed as a sight.

Therefore, it is difficult to accurately install the wall at the marking position. Especially when the wall is composed of prefabricated panels, the length of the panel has a manufacturing error, and it is difficult to provide an error absorbing gap between the panels.
It takes a lot of work. Especially in the case of a heavy concrete wall, its alignment is not easy.

Therefore, a manufacturing error between the member (C) and the foundation (a) is absorbed in the part where the anchor (b) that connects the foundation (a) and the wall engages with the wall component (C). Thus, a large-diameter anchor through hole (d) is bored in the wall component (C).

(Problems to be solved by the invention) Therefore, the setting position of the wall is not fixed, and the anchor is not necessarily located at the center of the through hole of the wall component, so that the lateral force is transmitted. At this time, the anchors do not work uniformly at the same time, but they work individually, and the lateral force such as seismic force transmitted from the foundation to the wall is not stable, and there is a risk of concentration on either side.

In order to eliminate this, it is often attempted to grout mortar or plastics in the gap, but it not only requires a lot of work, but at present, by adjusting the quality of the grout material as necessary, It is a difficult matter to design the bearing yield strength accurately.

The present invention has been proposed in view of the above problems of the prior art, and the object thereof is to position a wall that is installed on the foundation and a foundation that is highly reliable both in terms of construction and structure. The point is to provide the structure.

(Means for Solving the Problems) In order to achieve the above object, the foundation according to the present invention and the positioning structure installed on the foundation correspond to the center of the wall element and the center of the same wall element in the foundation. A center guide pin, which is provided independently of the wall element and the foundation and also serves to transmit and position the stress between the wall element and the foundation, is fitted over each of the pin holes previously provided in the part, The center guide pin attachment portion is configured to yield against a horizontal force above a certain limit that acts during an earthquake and limit the earthquake input.

(Operation) As described above, according to the present invention, the center guide pin is fitted over the center of the wall element and the respective pin holes provided in advance in the portion of the foundation corresponding to the center of the wall element. , The wall element is accurately installed at the predetermined position on the foundation, and the transmission of lateral force between the foundation and the wall becomes clear.

Further, according to the present invention, since the center guide pin attachment portion of the wall element is configured to yield against a horizontal force of a certain limit or more that acts at the time of an earthquake, seismic energy is absorbed or the foundation is removed from the foundation. Seismic input is restricted due to the energy cutoff of
The horizontal force above the design value will not be generated on the wall.

Further, since the center guide pin is configured as a hired actual member provided independently of the wall element and the foundation, the center guide pin cannot be centered by an external force other than the prediction as in the case where the center guide pin always projects from the wall element and the foundation. The guide pin will not be formed or damaged, and the tip will not damage others.

(Examples) The present invention will be described below with reference to illustrated examples.

(A) is a center guide pin, which is constructed by fitting a piano wire (1) around the center outer circumference of a cylindrical body whose upper and lower ends are conical. (See FIGS. 2 and 3) (B) is a wooden wall element with a pin hole (2) in the center,
When the stainless steel center guide pin mounting plate (4) having a through hole (3) matching the pin hole (2) on the lower surface of the wall element (B) is a wooden wall panel, nail it to the wooden frame. It is fixed in (5). (See FIGS. 4 and 5) (C) is a foundation, and in the case of cast-in-place concrete, a portion corresponding to the center pin hole (2) of the wall element (A) is drilled with a concrete drill, Stainless steel pipe (7) in the drilled area (6)
Is fitted, and the epoxy resin (8) is filled between the pipe (7) and the inner peripheral surface of the drilled portion (6) to fix the pipe (7). (See FIG. 6 and FIG. 7) In the figure, (8) is a reinforcing bar.

Thus, the pipe (7) of the foundation (C) and the pin hole of the wall element (B)
By fitting the center guide pin (A) between the wall element (B) and (2), the wall element (B) is accurately installed at a predetermined position. At this time, the piano wire (1) serves to position the center guide pin (A) in the vertical direction.

At this time, the diameter of the center guide pin (A) and the through hole (3) is D, the thickness of the center guide pin mounting plate (4) is t, the design horizontal force is H,
If the bearing strength is fea and the allowable shear stress of the pin is fs, It is configured so that

The design horizontal force H is applied to the wind pressure, and when the response seismic intensity exceeds this, the center guide pin mounting plate (4) yields, allowing the wall to slide and limiting the seismic input.

When the foundation is a plate concrete foundation or a steel foundation, the pipe (7) is attached at a predetermined position when manufacturing the member. (Refer to FIG. 8 and FIG. 9) (Effects of the Invention) According to the present invention, as described above, the pin holes provided in advance in the center of the wall element and the portion of the foundation corresponding to the center of the wall element are provided. By fitting the center guide pin over the wall, the wall can be installed at a predetermined position on the foundation and the lateral force transmission between the wall and the foundation becomes clear. Further, the center guide pin mounting portion of the wall element yields against an excessive lateral force, whereby seismic energy is absorbed and energy is cut off from the foundation, and horizontal stress exceeding the design can be generated in the wall. Without
Excellent seismic performance is demonstrated.

Furthermore, since the center guide pin is constructed in a practical form independent of the foundation and the wall element, the center guide pin constantly protruding from the foundation or the wall element may be deformed or damaged by an unexpected external force. , The tip of the pin does not hurt others.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a wall positioning structure installed on the foundation according to the present invention, FIG. 2 is a front view of a center guide pin, FIG. 3 is its plan view, FIG. 4 is a vertical cross-sectional view showing the center guide pin mounting portion of the wall element,
FIG. 5 is a plan view thereof, FIG. 6 is a vertical sectional view showing a center guide pin mounting portion of a cast-in-place concrete foundation, FIG. 7 is a plan view thereof, and FIG. 8 is a center guide pin mounting portion of a precast concrete foundation. FIG. 9 is a plan view of the same, and FIG. 10 is a plan view of a conventional structure. (A) …… Center guide pin, (B) …… Wall element, (C) …… Foundation, (2) …… Pin hole, (3) …… Through hole, (4) …… Center guide pin mounting plate .

Claims (1)

[Claims] 1. A wall element and a foundation provided independently of the wall element and the foundation over a pin hole provided in advance in a portion of the foundation corresponding to the center of the wall element. A center guide pin that also serves as stress transmission and positioning is fitted, and the center guide pin mounting portion of the wall element yields against a horizontal force above a certain limit that acts during an earthquake and limits the earthquake input. A structure for positioning a wall installed on the foundation and the foundation characterized by being configured as follows.