JPH0776458B2 - Construction method for additional bearing wall - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method for converting an existing frame not having a load bearing structure into a load bearing wall, particularly in an industrialized prefabricated house using a steel frame and a panel. Regarding

2. Description of the Related Art For example, when adding a second floor to a one-story building, it is necessary to newly install a bearing wall.

In such a case, conventionally, after removing the exterior material such as the outer wall panel, the framework of the portion to be further modified is removed and replaced with a new framework of the load bearing wall structure. Alternatively, a method of welding the braces directly on site may be considered as a different method.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the above-mentioned conventional construction method, in the method of exchanging the frame, not only the outer wall panel but also the interior material needs to be disassembled, and further, the interior portion is related to the extension portion. However, the construction cost will increase and the construction period will become longer.

On the other hand, it is difficult to secure the quality of in-situ welding by the method of in-situ welding of braces.

The present invention solves the drawbacks of the conventional construction method, and provides an additional construction method of a load-bearing wall capable of performing construction at a low cost in a short period of time.

Means for Solving the Problems In order to complete the above problems, the present invention provides a rectangular frame by the left and right vertical frame members (3) (3) and the upper and lower horizontal frame members (4) (4). In a framework (1) which is formed in a shape and which includes a middle pillar (6) and / or a horizontal rail (7) across substantially the center of the frame body (5), the middle pillar and / or the horizontal rail (6) A step of forming a hole (14) for passing the brace (13) in the center of (7), and one of the tuck buckle type brace (13) divided into two at the joint part to the hole (14). The step of connecting the two brace members (16) (17), which are passed through and divided, to each other, and the joining members (19) (20) fixed to the ends of the brace (13), And (2) fixing the two (2) to the diagonal corners of the frame (1) using bolts (8) or anchor bolts (10) that connect them to each other. It is characterized by consisting of.

In the present invention, the divided brace member (1
6) The order of (17) mutual connection and fixing to the shaft set (1) at both ends is not limited to the order described above, and may be appropriately performed before or after.

Effect According to the present invention described above, the bearing wall can be remodeled by merely drilling holes, removing bolts, and tightening the bolts without removing the frame assembly (1).

Example Next, the construction method of the present invention will be described according to the construction order.

In FIG. 5, (1) is a frame set of the present invention to be modified into a load bearing wall, and first, the frame set (1) and the frame sets (2) and (2) on both sides thereof are straddled. The outer wall panel and other exterior members such as girders. As shown in FIG. 1, the modified frame assembly (1) includes a pair of left and right vertical frames (3) and (3) made of metal channels, and a pair of upper and lower horizontal frames (4) and (4) also made of channels. And form a rectangular frame (5). Inside the frame body (5), a center pillar (6) in which a pair of channel materials are arranged back to back is attached in the center of the left and right of the frame body across both lateral frames (4) and (4). The horizontal rails (7) and (7) are attached between the central portions of the vertical frames (3) and (3) and the horizontal frames (4) and (4).

Then, when the outer wall panel and the like are removed, as shown in FIG. 5, the vertical frames (3) and (3) and the adjacent frame sets (2) and (2) are provided.
By fixing the upper and lower two bolts and nuts (8) (9), (8) (9), ... and the lower horizontal frame (4) that are connected to the base (10) Anchor bolt (1
Remove the nut (12) from 1).

After that, as shown in FIG. 6, a hole (14) for passing a tan buckle type brace (13) as shown in FIG. 7 is opened at the upper and lower centers of the center pillar (6). This brace (13)
Is a pair of screw rods (16) (17) having opposite male screws (15) (15) at opposite ends, and both male screws (15) (1).
It is composed of a joint (18) for screwing (5) and connecting these screw rods (16, 17). Joining plates (19) (20) are pre-welded to the other end of each screw rod (16) (17). Also, joining plates for them (19)
Fixing pieces (21) and (21) in the right-angle direction are integrally formed on the (20).

Next, as shown in FIG. 7, the longer brace (16) of the brace (13) is pulled out from the joint (18) and separated from the other short male rod (17). Next, as shown in FIG. 1, the separated long male threaded rod (16) is inserted into the hole (14) opened in the center pillar (6) obliquely upward from below the horizontal rail (7). . In this state, as shown in FIG.
The joining plate (19) is inserted between the flanges (22) (22) at the corners of the vertical frame (3) and the lower horizontal frame (4), and the fixing piece (21) is attached on the vertical frame (3) side. The spelling bolt (8) and the nut (9) are used to reconnect the adjacent shaft set (2) and fix it to the vertical frame (3). Also,
On the lower lateral frames (4) and (4), the nuts (12) removed in advance are fastened and fixed to the anchor bolts (11) protruding from the lateral frames (4). In addition, the fixing piece (21) is previously formed with a bolt hole into which the bolt (8) (11) is inserted.

After fixing the longer male threaded rod (16) as described above, the other shorter male threaded rod (17) is attached to the joining plate (20) at the diagonally upper corner. The side horizontal frame (4) and the vertical frame (3) are placed by inserting the corners (Fig. 3). At this time, the joint (18) is screwed in to shorten it, the joint (18) is opposed to the male screw (15) of the mating male screw rod (16), and the joint (18) is extended again to extend the male joint. It is connected to the screw (15) by screwing. After or before this connection, the fixing piece (21) of the joining plate (20) is attached using the bolts (8) and nuts (9) that bind the shaft sets (1) and (2) together.

Finally, as shown in Fig. 4, one diagonal brace (1
After installing 3), similarly install the other brace (13).

In addition, in the above, the hole (14) through which the brace (13) passes
May open to the cross rail (7) or both the middle pillar (6) and the cross rail (7).

EFFECTS OF THE INVENTION As described above, according to the present invention, the exterior material such as the outer wall panel is removed, the central pillar or the horizontal rail is perforated, the brace is passed through, and the shafts or the horizontal frames are fixed to the foundation. Since this is a simple method of fixing the brace using the bolts, it is not necessary to remove the interior materials or unnecessarily dismantle over a wide area compared to replacing the frame, There is an effect that it can be implemented at low cost. Further, in the method of replacing the shaft assembly, the removed shaft assembly had to be treated as a waste material, but in the present invention, there is no such inconvenience and it can be implemented at a lower cost. Furthermore, since welding is not performed on site, there is less risk of quality problems such as welding accuracy, and specialized technicians such as welders are unnecessary.

[Brief description of drawings]

FIG. 1 is a perspective view showing a method of inserting a divided brace, FIG. 2 is a perspective view of an essential part showing a mounting state of a joining plate, and FIGS. 3 and 4 are construction methods after FIG. FIG. 5 is a front view of a state in which the exterior material is removed, FIG. 6 is a perspective view of a main portion showing a brace insertion hole opened in the center pillar, and step 7 is a perspective view of a divided brace. It is a figure. (1) …… framework, (3) …… vertical frame, (4) …… horizontal frame,
(5) …… Frame, (6) …… Center pillar, (7) …… Horizontal bar,
(8) …… Bolt, (11) …… Anchor bolt, (13)
…… Brace, (14) …… Hole, (16) (17) …… Divided brace member, (18) …… Fitting, (19) (20) …… Join plate.

Claims (1)

[Claims] 1. A frame assembly which is formed into a rectangular frame shape by left and right vertical frame members and upper and lower horizontal frame members, and which is provided with a middle pillar and / or a horizontal rail across substantially the center of the frame body. In the step of making a hole for passing a brace in the center of the center pillar and / or the horizontal rail, and passing one of the tan buckle type brace divided into two in the joint portion through the hole and dividing the two. From the step of connecting the brace members to each other, and the step of fixing the joining member fixed to the end of the brace to the diagonal corner of the shaft using bolts or anchor bolts that connect the shafts to each other. This is an additional construction method for bearing walls.