JP3688800B2 - Wall panel base hardware fixing structure - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a fixing structure of a wall panel base metal fitting capable of reliably joining a wall panel base metal piece arranged on a concrete foundation top end to an anchor bar embedded in a concrete foundation.
[0002]
[Prior art]
An angle or flat bar is placed on the concrete foundation as the wall panel base hardware, and this is fixed to the anchor bar. At this time, the base metal must be positioned at a predetermined position with respect to the concrete foundation, but it is difficult to ensure the position accuracy of the anchor bars.
[0003]
For this reason, in order to ensure that the anchor bars and these base metal parts are in contact with each other and welded, conventionally, foamed polystyrene or the like is attached around the anchor bars and the foundation concrete is cast, and then the foamed polystyrene or the like is removed and the anchors are removed. A hole is formed around the muscle at a depth of about 5 cm from the upper surface of the foundation, and the anchor muscle can be bent freely within that range (first conventional method). Then, the anchor bars are tilted so that the anchor bars come in contact with a part of the base metal such as an angle and the base metal can be positioned at a predetermined position, and both are fixed by welding or the like. The hole was filled with mortar.
[0004]
There is also a method of fixing the anchor bar protruding from the top of the concrete foundation by simply bending it at the base and fixing it to the base hardware without forming holes using foamed polystyrene. A method has also been adopted in which the anchor muscles are pushed down by part of the base (second conventional method).
[0005]
[Problems to be solved by the invention]
However, in the first conventional method, in addition to the troublesome work of mounting the expanded polystyrene, such work does not fall within the category of wall panel construction and needs to be performed in advance during the construction work of the concrete foundation. There is also a problem that it is necessary to have an operator who performs concrete foundation construction work perform such work that is required in a later process. In addition, after welding the anchor bar and the base metal, the hole around the anchor bar must be filled with mortar, etc., and the base metal such as a flat bar and angle is a dry method, so the wall panel is built. The worker has to perform the mortar kneading work only for this purpose, and there is a problem that the construction efficiency is inferior.
[0006]
Still, in the second conventional method, it is necessary to bend the anchor bars in the vicinity of the base part in order to keep the foundation joint dimension low, but the bent part may swell and exceed the foundation joint width. For example, if the diameter of the anchor bar is 10 mm and the joint joint width is 10 mm, the bent portion will swell about 12 mm from the concrete foundation, so that there is a problem of obstructing the installation of the wall panel by contacting the lower end of the wall panel. It was. Further, since the anchor bars bent in this way are not horizontal, there is a problem in that the welding with the base metal becomes spot welding and a sufficient welding strength cannot be obtained. In addition, in order to improve this problem, it is possible to bend the anchor bars through the top surface of the concrete foundation at the base of the anchor bars. There was a problem of inefficiency.
[0007]
Accordingly, an object of the present invention is to propose a fixing structure for a wall panel base metal fitting that is excellent in construction efficiency and can reliably ensure welding strength when fixing the wall panel base metal piece to an anchor bar on a concrete foundation. There is.
[0008]
[Means for Solving the Problems]
A first aspect of the present invention is an anchor bar projecting from the top end of a concrete foundation, provided with an anchor bar fixing part in which a long hole is formed in the thickness direction of the concrete foundation, and in the vicinity of the end of the long hole in the longitudinal direction. A step is formed with the fixed base metal fixing part, and it is fixed by inserting the long hole of the anchor bar fixing part of the joint metal fitting made into a substantially inazuma shape, and the base metal fixing part of the joint metal hardware is arranged at the top of the concrete foundation It is a fixing structure of an anchor bar and a wall panel base metal fitting, characterized in that it is fixed by being overlapped with a wall bar base metal hardware having a flat bar or an angle.
[0009]
The second aspect of the present invention is an anchor bar fixing portion in which a plurality of holes arranged in the thickness direction of the concrete foundation are formed in an anchor bar protruding from the top end of the concrete foundation, and an end portion of the holes in the arrangement direction. A step is formed with the base hardware fixing part provided in the vicinity, and it is fixed by inserting through the hole of the anchor bar fixing part of the joint metal fitting made into a substantially indented shape, and the base metal fixing part of the connection hardware is fixed to the top of the concrete foundation The anchor bar and the wall panel base metal fixing structure are characterized in that they are fixed on the flat bar or the angle wall panel base metal hardware arranged in the above.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a partially sectional perspective view of a concrete foundation structure of the first embodiment, FIG. 2 is a perspective view of a joint hardware of the first embodiment, and FIG. 3 is a concrete foundation structure showing another example of use of the joint hardware. FIG.
[0011]
As shown in FIG. 1, anchor bars 5 are embedded at a predetermined interval in the concrete foundation 2, and the anchor bars 5 protrude from the upper surface 2 a of the concrete foundation 2 in the vertical direction. A long plate-like flat bar 3 as a base metal is laid on the upper surface along the length direction of the concrete foundation 2, and this flat bar 3 is connected to the anchor bar 5 with the connecting hardware 1. It is fixed through. And the foundation | flour which builds a wall panel by flowing the cement leveler 4 between the flat bar 3 and the concrete foundation 2 is comprised.
[0012]
As shown in FIG. 2, the connecting metal 1 is a plate-shaped main body 1a having a long hole 1b in the longitudinal direction. The width of the long hole 1b is the same as the diameter of the anchor bar 5, and when the anchor bar 5 is inserted into the long hole 1b, the connecting metal 1 can slide along the longitudinal direction of the long hole 1b. It has become.
[0013]
The main body 1a of the connecting metal 1 has a stepped portion 1c formed in the middle part thereof to form a substantially Inazuma metal fitting. The portion that is raised one step higher than the stepped portion 1c is defined as a flat bar fixing portion 1d, and the portion that is lowered one step is anchored. It is set as the muscle fixing part 1e. The flat bar fixing portion 1d is welded to the connecting metal 1 and the flat bar 3 after the lower surface is superimposed on the upper surface of the flat bar 3. For this reason, the anchor bar fixing portion 1e of the connecting metal 1 is lowered by the level difference 1c and becomes substantially the same height as the lower surface of the flat bar 3, and comes into contact with the upper surface of the cement leveler 4 so that the flat bar 3 is easily leveled. In addition, when welding the anchor bar 5 and the joint metal 3, the welded portion is prevented from interfering with the lower surface of the panel to be built.
[0014]
Next, a method for constructing a concrete foundation structure using the above-described connecting hardware 1 will be described. First, the cement leveler 4 is poured on the upper surface of the concrete foundation 2 and hardened to ensure the level of the top of the foundation. Then, anchor bars 5 embedded in the concrete foundation 2 are attached so that the long holes 1b of the metal fitting 1 are inserted, and in parallel with this, the reference line drawn on the concrete foundation 2 is drawn on the upper end 2a of the concrete foundation 2. Using a water thread, the flat bar 3 is placed while checking the level. Then, the metal fitting 1 is slid in the thickness direction of the concrete foundation 2 by moving the position of the long hole 1b of the metal fitting 1 along the anchor bar 5, so that the flat bar fixing portion 1d is placed on the upper surface of the flat bar 3. Position to. After the two are welded and fixed, the anchor bar 5 and the connecting metal 1 are further welded, and the flat bar 3 is fixed to the anchor bar 5.
[0015]
The remaining anchor bars 5 of the connecting metal 1 are cut using a welding device or the like. Thereafter, the lower end of a wall panel (not shown) is placed on the flat bar 3, and this is built in the building frame, and the operation is completed.
[0016]
If the thickness of the metal fitting 1 is made thinner than the gap between the wall panel lower surface and the flat bar 3, it is possible to prevent the metal fitting 1 from coming into contact with the wall panel lower surface and causing discomfort. Further, when the wall panel and the joint 1 are in contact with each other at some points, such as in the case of a design in which no gap is provided between the wall panel and the flat bar 3, the lower surface of the wall panel is partially suspended at the contact portion. And so on.
[0017]
As shown in FIG. 3, when the anchor bar 5 is inserted into the elongated hole 1 b of the connecting metal 1, a welding operation may be performed after the washer 6 is further stacked from above. In this case, the anchor bar 5 and the washer 6, and the washer 6 and the connecting metal 1 are welded and fixed. By using the washer 6, the washer 6 comes into contact with the anchor bar 5 and the connecting metal object 1 in a wide area, and welding can be more reliably performed to improve the welding strength.
[0018]
A second embodiment of the present invention will be described with reference to FIG. The metal fitting of this embodiment is one in which the above-described washer is previously incorporated into the elongated hole 11b of the metal fitting 11. FIG. 4 is a diagram for explaining the structure of a connecting metal fitting. In addition, about the structure similar to 1st Example, the same code | symbol is attached | subjected and description is abbreviate | omitted.
[0019]
As shown in FIG. 6A, the connecting metal 11 of the same embodiment forms a long hole 11b in the longitudinal direction of the plate-shaped main body 11a, like the connecting metal of the first embodiment. The main body 11a has a stepped portion 11c formed in the middle part thereof to form a substantially ingot metal fitting. The stepped portion with the stepped portion 11c as a boundary becomes the flat bar fixing portion 11d, and the stepped portion becomes the anchor bar. It is a fixed part 11e.
[0020]
Further, as shown in FIG. 5B, a washer 11f is placed on the long hole 11b, and a ring member 11g is fitted over the washer 11f and the connecting metal body 11a. The ring member 11g is formed with flanges 11h at both ends to prevent the ring member 11g from coming off, and the washer 11f and the ring member 11g can move integrally along the long hole 11b without falling off from the connecting metal 11. It has become.
[0021]
As described above, the metal fitting 11 of this embodiment has the washer 11f structurally integrated with the metal fitting 11, so that the number of parts is reduced and handling at the work site is facilitated.
[0022]
Another configuration example of the present invention will be described with reference to FIG.
[0023]
Further, it is not always necessary to use a long hole for the function of adjusting the positioning of the connecting metal piece, and instead, a structure in which a plurality of holes are continuous may be employed. Figures 5 (a) and 5 (b) show examples of this structure.
[0024]
Similarly to the first and second embodiments, any of the connecting hardware 13 and 14 shown in FIGS. 6A and 6B has steps 13b and 14b formed in the middle portions of the main bodies 13a and 14a, and has a plurality of holes 13c. , 14c are arranged in the longitudinal direction of the main bodies 13a, 14a. A plurality of holes 13c of the connecting metal piece 13 in FIG. 5A are integrated with adjacent holes to form a continuous hole as a whole. However, curved protrusions remain in part, and the diameter of each hole 13c is set to be equal to the diameter of the anchor bar 5. Therefore, unless the anchor bar 5 is once removed, the connecting piece 13 is fixed to the thickness of the concrete foundation 2. It cannot move in the right direction. Further, as shown in FIG. 5B, the holes 14c may be perforated at a distance without being continuous.
[0025]
In either case, compared to the case where a long hole is used as in the first and second embodiments, the contact area between the anchor bolt 5 and the holes 13c and 14c is increased, so that welding can be reliably performed. Welding strength can be improved.
[0026]
In the above embodiment, a flat bar is used as the base metal, but an angle may be used instead. In the above embodiment, a structure in which a cement leveler is placed on the upper portion of the concrete foundation 2 is shown. However, the placement of the cement leveler is not essential, and for example, the bottom surface of the flat bar is placed in correspondence with the arrangement position of the connecting hardware. It can also be supported by placing a support block. Further, after welding the flat bar, a cement leveler may be post-placed.
[0027]
【The invention's effect】
As described above, according to the present invention, when the anchor bar and the base metal are fixed, the connecting bar can be moved relative to the anchor bar. Can be easily corrected, and as a result, a large welding strength can be secured. In addition, since the connecting hardware has a substantially inazuma shape, it is possible to easily press down the wall panel base hardware made of a flat bar or an angle.
[Brief description of the drawings]
FIG. 1 is a partial cross-sectional perspective view of a concrete foundation using a metal fitting of the first embodiment.
FIG. 2 is a perspective view of a metal fitting of the first embodiment.
FIG. 3 is a partial cross-sectional perspective view of a concrete foundation showing another example of use of a connecting metal fitting in the first embodiment.
FIG. 4 is a perspective view of a metal fitting of the second embodiment.
FIG. 5 is an explanatory view showing an example of the structure of a metal fitting in which a plurality of holes are made continuous.
[Explanation of symbols]
1,11,12,13,14 ... Connector hardware 1b, 11b, 12b ... Long hole
13c, 14c ... holes (several holes)
1d, 11d ... Flat bar fixing part (underlying hardware fixing part)
1e, 11e ... Anchor bar fixing part 2 ... Concrete foundation 3 ... Flat bar (base metal)
5 ... Anchor muscle

Claims (2)

The Anchors projecting from the concrete foundation crest, and Anchors fixing portion formed long elongated hole in the thickness direction of the concrete foundation, and the foundation hardware fixing portion provided on the end portion in the longitudinal direction of the long hole A flat bar or angle that is fixed by inserting a long hole in the anchor bar fixing part of a substantially ingot-shaped connecting metal fixture that is formed with a step and the base metal fixing part of the connecting metal object is placed on the top of the concrete foundation A fixing structure for anchor bars and wall panel base metal fittings, characterized in that they are fixed on the wall panel base metal hardware . The Anchors projecting from the concrete foundation crest, the Anchors fixing portion having a plurality of holes arranged in the thickness direction of the concrete foundation and the underlying hardware fixing portion provided in the vicinity of an end of the arrangement direction of the holes A flat bar or angle that is fixed by inserting through the hole of the anchor bar fixing part of a generally indented shape of a connecting metal fixture that is formed by forming a step with the base metal fixing part of the connecting metal hardware at the top of the concrete foundation A fixing structure for anchor bars and wall panel base metal fittings, characterized in that they are fixed on the wall panel base metal hardware .

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