JPH0113690Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a ribbed thin-walled medium-sized wall panel with improved earthquake resistance.

Today, ribbed, thin-walled, medium-sized wall panels are widely used as walls for prefabricated houses.

FIG. 1 shows an example of this type of medium-sized wall panel.

The medium-sized wall panel indicated by reference numeral 1 in this figure has a frame formed by combining a plurality of middle horizontal ribs 2, upper and lower horizontal ribs 2', and vertical ribs 3, and a shell section 4 between them. It is said to have a connected structure.

If such a structure is adopted, medium-sized wall panel 1
However, when an external force such as an earthquake is applied in the horizontal direction, cracks sometimes occur on the surface of the shell portion 4 along the lower horizontal ribs 2'.

The present invention has been made to improve the above-mentioned phenomenon.

Hereinafter, the present invention will be explained in detail based on embodiments shown in the drawings.

FIGS. 2 and 3 illustrate an embodiment of the present invention. In this figure, the same or corresponding parts as in FIG. 1 are given the same reference numerals, and their explanations will be omitted.

In this embodiment, in order to increase seismic performance, a diagonal rib 5 is used to connect the center of the lower horizontal rib 2' and the lower portions of the left and right vertical ribs 3, 3. A structure is adopted in which the thickness of the rib 2 itself is thicker than that of the shell portion 4.

By adopting such a structure, the tensile force that causes horizontal cracks along the line of the lower horizontal ribs 2' of the medium-sized wall panel 1 is borne by the diagonal ribs 5 as a compressive force, thereby reducing cracks. It is now possible to effectively utilize the strength of the entire panel as well as the strength of the anchor bolts to which the panel is connected, and is expected to increase its strength against destruction.

In addition, by increasing the wall thickness of the middle horizontal rib 2, it is possible to cope with the increase in shear force that increases as the proof stress of the entire panel increases, and also to prevent tensile splitting failure of the vertical rib 3 caused by the joining bolts of adjacent panels. It will be possible to prevent this.

FIG. 4 shows a state in which the medium-sized wall panels 1 configured as described above are installed, and each medium-sized wall panel 1 is fixed to the floor surface with an anchor bolt 6, and the adjacent panels 1 The vertical ribs 3 are connected to each other by connecting bolts.

When an external force such as an earthquake force is applied in the horizontal direction while the anchor bolt 6 is attached in this way, a tension T is applied to one side of the anchor bolt 6 and a tension T is applied to the other side, as shown by the arrow in Fig. 4. A compressive force C is applied to the sides, and a tensile force T and a compressive force C are applied to the vertical ribs 3, respectively.

Such tensile force and compressive force are borne by the diagonal ribs 5, thereby preventing tensile splitting failure caused by the lower horizontal ribs 2' and the anchor bolts 6.

In addition, since the interrupted horizontal ribs 2 are thicker than the shell portion 4, the medium-sized wall panel 1 itself can withstand bending and shearing forces, and the tensile strength of the vertical ribs 3 caused by the joining bolts can be increased. Splitting fracture can be prevented.

As is clear from the above description, according to the present invention, the diagonal rib 5 is provided between the vertical rib 3 and the lower horizontal rib 2', and the thickness of the interrupted horizontal rib 2 is compared with the thickness of the shell part. Since the structural structure is increased by increasing the strength of the diagonal ribs 5, when an external force such as an earthquake is applied, the diagonal ribs 5 bear the compressive and tensile forces, increasing the strength of the entire panel. It is possible to prevent tensile splitting failure occurring in the ribs 2' and the longitudinal ribs 3, and to provide a thin, medium-sized ribbed panel with significantly improved seismic performance.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway front view showing the conventional structure, Figure 2
The figure is a partially cutaway front view showing one embodiment of the present invention, Figure 3 is a cross-sectional view taken along line A-A in Figure 2, and Figure 4 is a front view showing the state in which the thin-walled medium-sized wall panel with ribs of the present invention is installed. It is a diagram. 1 is a medium-sized wall panel, 2 is a middle horizontal rib, 2' is an upper and lower horizontal rib, 3 is a vertical rib, 4 is a shell part,
5 is a diagonal rib, and 6 is an anchor bolt.

Claims (1)

[Scope of utility model registration request] In a thin medium-sized wall panel with ribs for residential use, which is equipped with a pair of left and right vertical ribs, a plurality of horizontal middle horizontal ribs that communicate between these vertical ribs, and upper and lower horizontal ribs, the lower horizontal rib is A thin wall with ribs, characterized in that the center part and the vicinity of the bottom of the left and right vertical ribs are connected by diagonal ribs, and the thickness of the middle horizontal rib is increased compared to the thickness of the shell part. Medium wall panel.