JP3486063B2 - Heat insulation inner wall base structure - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat insulating inner wall base structure. 2. Description of the Related Art Conventionally, in a building having a steel structure, when a curtain wall structure is adopted for an outer wall, Japanese Patent Laid-Open No. 8-13 / 1996 has been proposed.
As described in Japanese Patent No. 654, at the time of constructing the inner wall, a heat insulating material is packed inside each of the divided frames of the wooden frame material framed in a rectangular shape by the vertical rails and the horizontal rails,
By installing a heat-insulating inner-wall base panel with a waterproof and moisture-proof sheet attached to one side of the floor, separated from the outer wall,
It has been proposed to form an insulated inner wall substrate. In the heat insulating inner wall base, a metal fitting body is fixed to an upper end portion of the heat insulating inner wall base panel, a runner is fixed to a floor material in accordance with a steel beam, and a lower end of the heat insulating inner wall base panel is inserted into the runner. It is formed by bringing the metal fitting body into contact with the indoor edge of the lower flange of the steel beam and biting the fixing member through the metal body into the indoor edge of the lower flange of the steel beam to be fixed. . As a result, the heat insulating property of the indoor space is improved, and at the same time, the ventilation space is secured between the back surface of the outer wall and the heat insulating material to prevent the occurrence of internal dew condensation. [0004] However, in the case of forming the heat insulating inner wall base described above, the standing position of the heat insulating inner wall base panel is determined by the position of the runner and the steel beam fixed to the floor material in accordance with the steel frame beam. Since it is automatically determined by the metal fitting body that abuts on the indoor side edge of the lower flange, in order to erect the heat insulating inner wall base panel closer to the outer wall or to stand further away from the outer wall, the heat insulating inner wall to the outer wall is required. A plurality of types of metal fittings having different sizes according to the standing position of the base panel are required. Therefore, as long as a single metal fitting body of the same size is used, the distance from the outer wall may vary depending on the case of trying to secure a wider indoor space, providing a Japanese-style room with a shoji screen, or the relationship with the pillar. It is impossible to erect the heat insulating inner wall base panel. Further, since the heat insulating inner wall base panel is positioned with reference to the steel beam as described above, its standing position is affected by manufacturing errors of the steel beam. As a result, an error may occur in the standing position of the heat insulating inner wall base panel. In such a case, the work of adjusting the heat insulating inner wall base panel is required. [0006] Further, a space is formed between the heat insulating inner wall base panel and the lower flange of the steel beam to allow air to flow, and as a result, a space is formed between the heat insulating inner wall base panel and the steel beam. There is also a problem that heat is circulated through the formed space and the ceiling, thereby impairing heat insulation. SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and a heat-insulating inner wall base panel is accurately positioned and installed at a standard position and other positions.
An object of the present invention is to provide a heat insulating inner wall base structure capable of ensuring higher heat insulating properties. SUMMARY OF THE INVENTION The present invention provides a plurality of runner fixing brackets attached to a lower flange of a steel beam at intervals, a runner fixed across these runner fixing brackets, A plurality of fixing brackets fixed to the flooring material at intervals in accordance with the fixing position of the runner, the upper end was inserted into the runner, and the lower end back surface was abutted with the fixing bracket and fixed to the fixing bracket. A heat insulating inner wall base panel, wherein a heat insulating material is disposed between the steel beam and the runner while bypassing the runner fixing bracket. Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 4 show a heat insulating inner wall base structure of the present invention. The heat-insulating inner wall base 1 comprises a plurality of runner fixing brackets 2 attached to the lower flange h1 of the steel beam H at intervals, and a runner 3 fixed via screws across the runner fixing brackets 2. And a plurality of fixing brackets 4 fixed to the floor material F via screws at intervals.
And a heat insulating inner wall base panel 5 built on the floor material F at a fixed distance from the outer wall W by the runners 3 and the fixing fittings 4, and a glass wool disposed in a space between the steel beam H and the runner 3. And a heat insulating material 6 such as rock wool (see FIG. 4). First, the runner fixing bracket 2 is formed by bending a steel plate, and as shown in FIG.
1. An inverted hat-shaped cross section including a vertical portion 212 bent upward from both side edges of the mounting portion 211 and a contact portion 213 bent outward from an upper end of the vertical portion 212. A base material 21, an engagement piece 22 formed continuously with one edge of each vertical portion 212 of the base material 21 and having an engagement portion 22 a capable of engaging with the edge of the lower flange h 1 of the steel beam H; The locking piece 23 formed continuously with the other end edge of each contact portion 213 of the base material 21 and bent upward.
The engaging portion 22a of the engaging piece 22 and the locking piece 23
Is set to the width of the lower flange h1 of the steel beam H. In order to attach the runner fixing bracket 2 to the steel beam H, first, the engaging piece 2 is placed in a state where the contact portion 213 of the base member 21 is in contact with the lower surface of the lower flange h1 of the steel beam H.
After engaging the second engaging portion 22a with the outer wall side edge of the lower flange h1 of the steel beam H, the locking piece 23 is turned back and the steel beam H
The runner fixing fitting 1 can be easily attached to the steel beam H (see FIG. 6). On the other hand, the runner 3 is formed to have a substantially U-shaped cross section so that the upper end portion of the heat insulating inner wall base panel 5 described later can be inserted. And runner 3
At a set distance from the reference position, the runner fixture 2 is fixed via screws in accordance with a marking line attached to the mounting portion 211 of the base material 21 of the runner fixture 2. At this time, the runner 3 moves from the standard position where the center of the runner 3 coincides with the center of the steel beam H (see FIG. A position moved a certain distance to the indoor side (Fig. 7
(See (b) and (c)). The fixing bracket 4 includes a horizontal portion 41 formed to have a length corresponding to the depth of the heat-insulating inner wall base panel 5 and a vertical portion 4 bent upward at one end of the horizontal portion 41.
2, it is bent into an L-shaped cross section, and a locking piece 43 extends from the other end of the horizontal portion 41. And, the fixing bracket 4 is fixed along the marking line attached to the floor material F in accordance with the fixing position of the runner 3 described above,
The rear surface of the lower end portion of the heat insulating inner wall base panel 5 is in contact with the vertical portion 42. Further, the heat insulating inner wall base panel 5 is filled with a heat insulating material 52 such as rock wool or glass wool in a partitioned space of a wooden frame member 51 framed by a vertical rail and a horizontal rail, and waterproofed on one side. It is formed by sticking a moisture-proof sheet (not shown). On the other hand, as shown in FIG. 4, a space formed between the lower flange h1 of the steel beam H and the runner 3 includes:
The heat insulating material 6 is continuously packed so as to bypass the runner fixture 2. As a result, it is possible to prevent heat from flowing through the space formed between the lower flange h1 of the steel beam H and the runner 3 and the ceiling, thereby ensuring higher heat insulation performance. The floor material F is composed of an ALC (lightweight cellular concrete) floor f1, a particle board f2 and a floor board f3 which are sequentially laid on the ALC floor f1 via a moisture-proof sheet (not shown). (See FIG. 3). Next, in order to form such a heat insulating inner wall foundation 1, first, a plurality of runner fixing brackets 2 are attached to the lower flange h1 of the steel beam H at regular intervals. That is, the contact portion 213 of the base material 21 of the runner fixing bracket 2
Is brought into contact with the lower surface of the lower flange h1 of the steel beam H, and the engaging portion 22a of the engaging piece 22 is connected to the lower flange h1 of the steel beam H.
After being engaged with the outer wall side edge of the steel beam H, the locking piece 23 is folded back and fixed to the indoor side edge of the lower flange h1 of the steel beam H. When the runner fixture 2 is attached, the mounting portion 21 of the base material 21 of the runner fixture 2
The black ink is applied at a distance set from 1 to the reference position, the runner 3 is arranged in accordance with the black ink line, and fixed via screws. Further, black ink is applied to the floor material F in accordance with the fixing position of the runner 3, and a plurality of fixing metal members 4 are fixed via screws at regular intervals in accordance with the blackout lines. As a result, the runner 3 and the fixing bracket 4 are positioned accurately at a distance from a reference position when building a house, and the accuracy is greatly improved as compared with the case where the steel beam H is used as a reference. Can be. Next, the heat insulating inner wall base panel 5 is gripped,
The upper end is inserted into the runner 3, and the lower end rear surface is brought into contact with the vertical portion 42 of the fixing bracket 4, and then the locking piece 43 of the fixing bracket 4 is turned upward to return the heat insulating inner wall base panel 5. Adhere to the lower end surface and fix via screws. Hereinafter, similarly, the heat insulating inner wall base panel 5 is erected and sectioned. At this time, if an opening for mounting a window is formed on the outer wall W, the outer wall W is erected from the heat insulating inner wall base panel 5 having an opening 5a (see FIG. 1) in accordance with the opening. Then, when the installation of the heat insulating inner wall base panel 5 is completed, although not shown in detail, a window frame is fitted and fixed in the opening 5a, and the opening 5a of the heat insulating inner wall base panel 5 and the periphery of the window frame are fixed. The space formed between them is filled with insulation. Next, a heat insulating material 6 is packed in the space formed between the steel beam H and the runner 3 while bypassing the runner fixing bracket 2. Then, after attaching the inner wall board 7 such as a gypsum board, the ceiling 8 may be constructed (see FIGS. 2 and 3). As described above, according to the present invention, a plurality of runner fixing brackets attached to the lower flange of a steel beam beam at intervals and a runner fixed across these runner fixing brackets are provided. A plurality of fixing brackets fixed to the flooring material at intervals according to the fixing position of the runner, and the upper end is inserted into the runner, and the back of the lower end is abutted against the fixing bracket and fixed to the fixing bracket. A heat insulating inner wall base panel, comprising a heat insulating material arranged around the runner fixing bracket between the steel beam and the runner, thereby ensuring a higher heat insulating performance, It can be positioned and built with high precision at the standard position or at a position other than the standard position.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory view showing a construction state of a heat insulating inner wall base of the present invention. FIG. 2 is a longitudinal sectional view of an inner wall having a heat insulating inner wall base of the present invention. FIG. 3 is an enlarged view showing the inner wall of FIG. 2 with a part thereof omitted; FIG. 4 is a perspective view of a heat insulating material provided in a space between a steel beam and a runner. FIG. 5 is a perspective view showing a runner fixing bracket. FIG. 6 is a perspective view showing a relationship among a steel beam, a runner fixing bracket, and a runner. FIG. 7 is a sectional view showing a fixing position of the runner with respect to the runner fixing bracket. FIG. 8 is a perspective view showing a fixing bracket. DESCRIPTION OF SYMBOLS 1 Heat-insulating inner wall base 2 Runner fixing metal 21 Base material 22 Engaging piece 22a Engaging part 23 Locking piece 3 Runner 4 Fixing metal 41 Horizontal part 42 Vertical part 43 Locking piece 5 Heat-insulating inner wall base panel 6 Heat insulation Material H Steel beam h1 Lower flange W Exterior wall F Floor material

Claims (1)

(57) [Claims] [Claim 1] A plurality of runner fixing brackets attached at intervals to a lower flange of a steel beam, a runner fixed across these runner fixing brackets, A plurality of fixing brackets fixed to the flooring material at intervals according to the fixing position, and an insulated inner wall fixed to the fixing bracket by inserting the upper end into the runner and contacting the lower rear with the fixing bracket And a base panel, wherein a heat insulating material is disposed between the steel beam and the runner while bypassing a runner fixing bracket.