JP3583080B2 - Fixing structure of panel in building structure with concrete wall panel and fixing method - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a so-called panel building structure in which a wall is constituted by a concrete wall panel, and more particularly to a fixing structure of the wall panel to a base and a fixing method thereof.
[0002]
[Prior art]
In a building structure in which wall panels are connected in a lateral direction to form a wall, it is necessary to accurately set the level when the wall panel is installed on a foundation.
Conventionally, means for interposing a plurality of seat plates between the top end of the foundation and the wall panel has been employed.
However, the level of the wall panel changes stepwise by this conventional means, and it is difficult to continuously adjust the level. In addition, no special consideration is given to fixing the wall panel to the base portion other than the anchor bolt, and there is a problem in strength.
[0003]
[Problems to be solved by the invention]
SUMMARY OF THE INVENTION It is an object of the present invention to provide a fixing structure for a wall panel that can accurately set the level of the wall panel with a simple structure.
It is another object of the present invention to provide a wall panel fixing structure capable of firmly fixing a wall panel to a base portion.
For this reason, the present invention has been made with the idea of maintaining a certain distance or more between the wall panel and the top end of the foundation.
[0004]
[Means for Solving the Problems]
The fixing structure of the wall panel of the present invention specifically has the following configuration.
In other words, in a building structure in which a wall is formed by lining up concrete wall panels placed on a concrete foundation in a horizontal direction,
Anchor bolts having screw portions on the top are planted at predetermined intervals on the base, and vertical anchor bars are planted vertically inside them.
At both ends of the lower side of the wall panel, a concave portion for receiving the anchor bolt is formed inwardly through an embedded metal fitting having an adjustment hole for loosely fitting the anchor bolt of the base portion,
Inside the lower end of the wall panel, anchor inserts for horizontal anchor bars are embedded at predetermined intervals,
A horizontal anchor bar having a screw at the root is screwed to the anchor insert, and is disposed horizontally between the vertical anchor bars of the base unit,
Upper and lower nuts that screw the embedding metal fittings of the recess from above and below are screwed into the screw portion of the anchor bolt,
It is characterized by the following.
Furthermore, in addition to this configuration, side recesses and inserts are disposed adjacent to each other on the side portions of the wall panel at positions opposing each other, and the bolt insertion holes of the embedded metal fittings in the side recesses are provided. A bolt is screwed into a screw hole of the insert through the hole.
In the method for fixing a wall panel according to the present invention, an anchor bolt having a threaded portion at an upper portion is planted at a predetermined interval on a concrete foundation, and a vertical anchor bar is planted vertically inside the bolt. In a construction method of a building in which a wall body is formed by arranging concrete wall panels on each other in a horizontal direction,
A concave portion is formed in the anchor bolt of the base portion through an embedding metal fitting having an adjustment hole for loosely fitting the anchor bolt of the base portion at both ends of the lower side portion, and a horizontal anchor bar is provided at the lower end portion. Built wall panels arranged,
With the upper and lower nuts sandwiching the embedded metal fittings of the recess screwed into the anchor bolt from above and below, the level of the wall panel is established,
Arranging the horizontal anchor bars so as to intersect the vertical projection plane between the vertical anchor bars,
Thereafter, the concrete at the upper part of the recess is laid and the horizontal anchor rebar is buried and concrete is poured between the soils.
Further, in addition to this configuration, side recesses and inserts are disposed adjacent to each other on the side portions of the wall panel at positions opposing each other, and bolts of embedded metal fittings in the side recesses are provided. A bolt is screwed into a screw hole of the insert through an insertion hole.
[0005]
(Action)
In the installation of the wall panel on the foundation, a lower nut is screwed into the anchor bolt, after which the wall panel is erected and supported by the lower nut. In this state, the upper nut is screwed, and the upper and lower nuts are tightened to form a level.
In addition, a horizontal anchor is attached to the lower end of the wall panel, and the horizontal anchor is arranged so as to intersect the vertical anchor and the vertical projection planted in the foundation, and the lower concave portion and the horizontal anchor and the vertical anchor are provided. Pile concrete in the buried state.
The wall panel is installed with a sufficient height from the top of the foundation, the concrete between the soil is filled in this gap, and the wall panel is connected to the horizontal and vertical anchor bars, so that the wall panel is Is integrated.
Adjacent wall panels are quickly and easily joined together with their transverse structure.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of a panel fixing structure in a building structure using a concrete wall panel according to the present invention will be described with reference to the drawings.
1 to 12 show a panel building structure according to one embodiment, and show an application to a one-story building. That is, FIG. 1 shows the entire configuration, and FIGS. 2 to 12 show the partial configuration.
[0007]
FIG. 1 shows an exploded configuration of this one-story building.
In FIG. 1, B is a base part and an anchor member is implanted and erected, P is a wall panel and is fixed to the anchor member of the base part B, K is a roof frame and a wall panel R is a roof material and is fixedly mounted on a roof frame K.
[0008]
Hereinafter, the detailed structure of each part will be described.
Base B (see FIGS. 2 and 12)
The base part B is made of reinforced concrete and has a so-called cloth base structure, and an anchor bolt 1 protruding upward is planted on its main body. A vertical anchor bar 35 is further implanted in the base portion B.
The foundation B is constructed by laying a split stone 100 on the ground E from which the topsoil has been peeled off, and then laying down concrete 102 thereon, whereby the main body of the foundation B is constructed. This is a normal construction mode.
The anchor bolt 1 includes a bolt rod portion 1a and a screw portion 1b. The rod portion 1a is buried in the base body, and the upper screw portion 1b protrudes from the upper surface of the base portion B. The screw portion 1a of the anchor bolt 1 is essential, and the form of the bolt rod 1a is free.
As shown in FIG. 12, the vertical anchor bar 35 is disposed inside the base portion B in the vertical direction.
[0009]
Wall panel P (see FIGS. 3 to 11)
The wall panel P has a rectangular flat plate shape having a certain thickness and a predetermined rigidity as a whole, and is made of reinforced concrete. For this reason, the skeleton part arrange | positions the reinforcement network (mesh) 4 by the vertical bar 2 and the horizontal bar 3 inside, arrange | positions a reinforcement bar (not shown) suitably, and wraps these integrally with concrete 5. Is formed.
As shown in FIG. 3, two lower concave portions 6 are formed in the lower side of the inner side of the wall panel P in the vicinity of both side ends, and are arranged along the lower concave portions 6 toward the inner side surface. And a plurality of anchor inserts 7 that are open. The lower recess 6 receives the anchor bolt 1 of the base, and the anchor insert 7 receives the horizontal anchor bar 8 (see FIG. 8). Further, a head joint 9 is provided on the upper side of the wall panel P, a side recess 10 for transverse joint is provided on one side, and a side recess 10 is provided on the other side. In response to the above, the insert 11 for crossover is installed.
[0010]
(Lower recess 6)
The lower concave portion 6 is formed at a plurality of locations (two locations in the present embodiment) on the lower side inside the wall panel P, and is used for fixing to the base portion B via the embedded metal fitting 13.
(Embedded bracket 13) (see FIGS. 4 and 5)
As shown in FIGS. 4 and 5, the embedding bracket 13 has a bottom plate 14 having a predetermined width and thickness, a wall plate 15 surrounding three sides on an upper surface of the bottom plate 14, and outer surfaces of the wall plates 15 on both sides. And an anchor member 16 extending upward. A large-diameter adjustment hole 17 is formed in the center of the bottom plate 14, and the anchor bolt 1 is loosely fitted therein.
Thus, the embedding metal fitting 13 is disposed such that its bottom plate 14 is flush with the lower surface of the wall panel P and is exposed at the lower bottom of the lower concave portion 6, and the wall plate 15 and the anchor member 16 are embedded in the concrete frame. Is done.
[0011]
(Anchor insert 7, horizontal anchor bar 8)
The anchor inserts 7 are installed at a plurality of locations (three locations in the present embodiment) inside the lower end of the wall panel P, and receive the horizontal anchor streaks 8. FIG. 8 shows the details, in which a screw 7a is screwed on the inner peripheral surface of the cylindrical portion, and a base 7b thereof fixes the frame to concrete. The horizontal anchor bar 8 has a root 8a formed into a screw, and the screw 8a is screwed into the screw hole 7a of the anchor insert 7 to be fixed. As shown in FIG. 12, the vertical anchor muscle 35 is located between the horizontal anchor muscles 8, and the vertical anchor muscle 35 and the horizontal anchor muscle 8 intersect with the vertical projection plane.
[0012]
6 to 8, the lower nut 20 and the lower washer 21 are mounted on the screw portion 1 b of the anchor bolt 1 protruding from the upper surface of the base portion B, and fit into the adjusting hole 17 of the embedded metal fitting 13 in the lower concave portion 8 of the panel P. The upper washer 22 and the upper nut 23 are further mounted.
[0013]
(Head joint 9) (see FIGS. 9 and 10)
The head joint 9 is provided on the upper side of the wall panel P, and includes a screw tube 25, an anchor member 26 for fixing the screw tube 25 to the main body of the wall panel P, and a mounting bolt screwed to the screw tube 25. 27, and a head joint member 28 fixed to the head of the wall panel P by the bolt 27. 29 is a washer.
More specifically, the screw cylinder 25 is provided at a position corresponding to the lower concave portion 8 on the lower side, and the upper edge thereof is flush with the upper surface of the main body of the wall panel P. Note that, instead of the mounting bolt 27, a suspension bolt (not shown) used for suspending the wall panel P is screwed into the screw cylinder 25.
Thus, the roof frame K made of a channel material is directly fixed on the head joint member 28 of the head joint part 9 by means such as welding.
[0014]
(Transverse structure) (See Fig. 11)
The side recess 10 and the insert 11 arranged on the side of the wall panel P are adjacent to each other to form a joint structure. That is, an embedding fitting 31 is fixed to the side recess 10 in accordance with the lower recess 6, and a bolt 32 is screwed into a screw hole 11a of the insert 11 through the bolt insertion hole. The adjacent panels P are fixed to each other.
[0015]
The construction of a building by the wall panel P having the above configuration will be described.
Hereinafter, the construction procedure will be described.
[0016]
(1) The base part B is constructed, and the anchor bolts 1 are installed at predetermined intervals.
The lower nut 20 and the lower washer 21 are mounted on the threaded portion 1b of the anchor bolt 1 of the base portion B.
[0017]
(2) A suspension bolt is screwed into the screw cylinder 25 of the head joint 9 on the upper side of the wall panel P, and the wall panel P is lifted by a crane device (not shown) via the suspension bolt. The lower part is erected on the base part B.
That is, the anchor bolt 1 is inserted into the adjustment hole 17 of the embedded metal fitting 13, and the upper washer 22 and the upper nut 23 are mounted in a state where the embedded metal fitting 13 is in contact with the lower nut 20 and the washer 21.
[0018]
(3) After that, the position of the wall panel P is adjusted.
That is, the lateral displacement of the wall panel P is absorbed by the gap between the adjustment hole 17 and the anchor bolt 1, and the level of the wall panel P is absorbed by the vertical movement of the lower nut 20 and the upper nut 23.
[0019]
(4) The wall panel P is installed adjacent to the previously installed wall panel P in the same procedure as the steps (2) and (3). These adjacent wall panels P are joined to each other with a transverse joint structure.
[0020]
(5) The upper portions of the wall panels P arranged side by side are fixed with a roof frame K, and a roof R is installed as necessary.
[0021]
(6) While the installation of the wall panel P is stable, the concrete C is poured. That is, prior to this, the horizontal anchor bar 8 is attached to the wall panel P. Thereafter, a formwork of the slab concrete C is performed, and the slab concrete C is cast so as to be sufficiently distributed between the wall panel P and the top end of the base portion B. The streaks 8 are driven until they are buried (see FIG. 12). As further shown (FIG. 12), the vertical anchor 35 is located between the horizontal anchors 8, the vertical anchor 35 and the horizontal anchor 8 intersect with the vertical projection plane, and the connection is firm. Become.
[0022]
According to the fixing structure of the present embodiment, the wall panel P is supported by the lower nut 20 screwed to the anchor bolt 1 with a sufficient height from the top end of the base portion B, and the height can be freely adjusted. Can be adjusted. Thereby, an accurate level can be achieved, and a sufficiently large gap between the wall panel P and the top end of the base portion B can be secured.
In addition, since the adjustment hole 17 of the embedded metal fitting 13 has a sufficient gap between itself and the anchor bolt 1, the lateral displacement of the wall panel P can be absorbed, and the installation work can be easily performed. The poured earth concrete C is filled in the gap between the wall panel P and the top end of the foundation B, and supports the wall panel P with the solidification of the earth concrete C, and is horizontal. The anchor bars 8 and the vertical anchor bars 35 are disposed so as to intersect the vertical projection plane, and the wall panels P and the base portion B are firmly integrated by the connection with the anchor bars 8, 35.
Adjacent wall panels P are quickly and easily joined together with their transverse structure.
[0023]
The present invention is not limited to the above embodiment, and various design changes can be made within the scope of the basic technical concept of the present invention.
[0024]
【The invention's effect】
According to the fixing structure of the wall panel of the present invention, the wall panel is supported by the lower nut screwed on the anchor bolt with a sufficient height from the top end of the base portion, and the height can be freely adjusted. The gap between the wall panel and the top end of the foundation can be sufficiently large.
Also, the poured earth concrete is filled in a gap between the wall panel and the top end of the foundation, and together with the solidification of the earth concrete, supports the wall panel, and also includes a horizontal anchor bar. The vertical anchor bar is disposed so as to intersect with the vertical projection plane, and the horizontal anchor bar and the vertical anchor bar are connected to each other, whereby the wall panel and the foundation are firmly integrated.
Furthermore, the adjoining wall panels are quickly and easily joined together with their transverse structure.
[Brief description of the drawings]
FIG. 1 is an exploded configuration diagram of an embodiment of a panel building structure of the present invention.
FIG. 2 is a sectional view of a foundation.
FIG. 3 is an overall configuration diagram of a panel.
FIG. 4 is a front view of an embedding fitting.
FIG. 5 is a plan view of an embedding fitting.
6 is an enlarged view of a portion I in FIG. 3 (a view in the direction of arrow VI in FIG. 7).
FIG. 7 is a sectional view taken along line VII-VII of FIG. 6;
FIG. 8 is a sectional view taken along line VIII-VIII in FIG. 7;
FIG. 9 is a sectional view of a head joint.
FIG. 10 is a view as seen in the direction of the arrow X in FIG. 9;
FIG. 11 is a partial cross-sectional side view of a transverse joint.
FIG. 12 is a cross-sectional view of a construction mode of a fixing structure.
[Explanation of symbols]
P: Concrete wall panel, B: Foundation, K: Roof frame, C: Soil concrete, 1: Anchor bolt, 6: Lower recess, 7: Insert for anchor, 8: Horizontal anchor bar, 13: Embedded metal fitting, 17 ... adjustment hole, 20 ... lower nut, 23 ... upper nut

Claims (4)

  In a building structure in which a wall is formed by lining up concrete wall panels placed on a concrete foundation in a horizontal direction,
  Anchor bolts having screw portions on the top are planted at predetermined intervals on the base, and vertical anchor bars are planted vertically inside them.
  At both ends of the lower side of the wall panel, a concave portion for receiving the anchor bolt is formed inwardly through an embedded metal fitting having an adjustment hole for loosely fitting the anchor bolt of the base portion,
  Inside the lower end of the wall panel, anchor inserts for horizontal anchor bars are embedded at predetermined intervals,
  A horizontal anchor bar having a screw at the root is screwed to the anchor insert, and is disposed horizontally between the vertical anchor bars of the base unit,
  Upper and lower nuts that screw the embedding metal fittings of the recess from above and below are screwed into the screw portion of the anchor bolt,
A fixing structure for a wall panel.   On the side of the wall panel, the side recess and the insert are disposed adjacent to each other at positions facing each other, and the side recess is inserted into the screw hole of the insert through the bolt insertion hole of the embedded metal fitting of the side recess. The fixing structure for a wall panel according to claim 1, wherein a bolt is screwed.   Anchor bolts having a threaded portion at the top are planted at predetermined intervals on the concrete foundation, and vertical anchor bars are planted vertically inside the concrete bolts. In a construction method of a building in which walls are arranged side by side,
  A concave portion is formed in the anchor bolt of the base portion through an embedding fitting having an adjustment hole for loosely fitting the anchor bolt of the base portion at both ends of the lower side portion, and a horizontal anchor bar is provided at a lower end portion thereof. Built wall panels arranged,
  The upper and lower nuts sandwiching the embedded metal fittings of the concave portion screwed into the anchor bolt from above and below form a level of a wall panel, and intersect the horizontal anchor streaks with a vertical projection plane between the vertical anchor streaks. So that
  Thereafter, laying concrete in the form of burying the horizontal anchor bars while reaching the upper part of the recess,
A fixing method for a wall panel, comprising:   Side recesses and inserts are disposed adjacent to each other on the side of the wall panel at positions facing each other, and the screws of the inserts are inserted through the bolt insertion holes of the fittings of the side recesses. 4. The method according to claim 3, wherein a bolt is screwed into the hole.

Images