JPH0476119A - Joining structure of block structure for constructing foundation - Google Patents

Abstract

PURPOSE:To shorten construction period by mutually joining steel reinforcements through a notch part opening to the end face of a foundation constructing block structure, steel reinforcements adjacent in a notched part and a connecting element having an inserting through hole to join the block structure. CONSTITUTION:Block structures are continuously mounted on a revelling concrete bed block with a joining element 8 inserted through a block structure A and its steel reinforcement 7 on the one side. The steel reinforcement 7 on the other side of block structure A is then inserted through the connecting element 8, and a projection 4a on the end face 3a of the block structure A on the one side is fitted in a recess 4b on the end face 3b of the block structure A on the other side. A nut 9 is threadedly engaged with the thread part 7a of the steel reinforcement 7 through the opening parts of notched parts 5, 6 in a rising part 2 and a footing part 1 to mutually join the reinforcements 7. Mortar is placed in the notched parts 5, 6 to join them. Thus the structure can be simplified in its joining.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention is applicable to foundation construction when a precast concrete foundation construction block structure formed in advance in a factory, etc. is used to construct the foundation of a house, etc. This invention relates to a method for joining block structures.

``Prior Art'' As is well known, the foundations of houses, etc. were generally formed by pouring concrete on-site, but this construction required a large number of man-hours; It was difficult to reduce the construction period and cost.

Therefore, in recent years, the foundations of houses, etc. are made of precast concrete foundation block structures that are pre-formed in factories, etc., and these are installed at the construction site to save and simplify the work at the construction site. In some cases, construction methods have become more common.

The block structure has a cast-in-place foundation divided perpendicularly to the longitudinal direction of this foundation.
When installing this on a foundation at a construction site, it was necessary to connect and install multiple block structures. and,
When joining block structures, for example, a joint metal fitting having an insertion hole for inserting a bolt is embedded in the end of the block structure, and these block structures are bolted facing each other, or The block structures to be joined were joined by welding reinforcing bars that penetrate and protrude along the length of each block structure.

The above-mentioned foundation is constructed in the same way as a foundation using cast-in-place concrete; a hole is formed in the ground, crushed stone, etc. is placed at the bottom of the cut, and it is compacted. It was constructed by pouring concrete onto the ground.

[Problems to be Solved by the Invention] Incidentally, by manufacturing the foundation in advance as a foundation construction block structure in a factory etc., it is possible to save labor and simplify the work at the construction site. When joining block structures with bolts, the positions of the joint hardware of the block structures to be joined must be aligned with high precision, otherwise the insertion holes of the joint hardware may be misaligned and the bolt may be inserted. The problem was that it was not possible.

In addition, welding reinforcing bars as in the conventional example requires a special technique and requires a skilled worker such as a welder.
There was a problem in that it became an obstacle to saving labor in foundation construction.

The present invention has been made in view of the above circumstances, and its purpose and purpose is to save labor and simplify the joining of block structures for foundation construction, thereby reducing the cost of foundation construction and shortening the construction period. An object of the present invention is to provide a joining structure for a foundation building block structure that can be shortened.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a basic tooling part placed on a base-1-, and a basic tooling part placed on the base-1-.
and a rising part on which the upper structure that will become a house, etc. is placed are formed integrally, and are connected and installed on the foundation, so that the foundation construction block structures that become the foundation of a house, etc. can be mutually connected. A joint structure for joining the block structures, comprising: a notch provided at the end faces of the block structures to be joined to each other and opening on the side; and a notch extending longitudinally through the block structures to be joined to each other in the notch. Reinforcing bars that extend through the notch and are adjacent to each other within the notch, and a coupling tool having an insertion hole for passing through each of the adjacent reinforcing bars, the coupling tool being inserted through the adjacent reinforcing bars from opposite directions, A joining structure for a block structure for foundation construction, characterized in that re-nuts are screwed onto the ends of reinforcing bars, and these nuts are tightened to connect the reinforcing bars to each other.

[Function] According to the above configuration, in order to construct a foundation using the foundation construction block structure equipped with the joint structure of the present invention, first, a root cut hole is provided at the construction site, and the bottom of the root cut hole is Establish a local business (J, establish a base for this local business).

Then, the block structures are connected and placed on this base. At this time, insert the reinforcing bars of the previously placed block structure into the insertion hole of one of the coupling tools, and when placing the next block structure, insert the reinforcing bars of this block structure into the coupling tool. are inserted into the other insertion hole from the opposite direction of the reinforcing bars, and placed so that these reinforcing bars are adjacent to each other in the notch of the block structure. Then, nuts are screwed into each end of the reinforcing bars, and the nuts are tightened to fasten the reinforcing bars to each other via the coupling tool. At this time, since adjacent reinforcing bars are connected via coupling tools, there is a wide tolerance for misalignment of reinforcing bars and misalignment of reinforcing bar length, and the reinforcing bars are fastened by screwing together different nuts. Therefore, even if the position or direction of the reinforcing bars is slightly shifted, the screws will not be able to screw together and it will not be difficult to fasten the reinforcing bars.

[Examples] Examples of the present invention will be explained below with reference to the drawings.
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Figures 1 to 3 show an embodiment of the joint structure of the block structure for foundation construction according to the present invention, and Figures 1 and 2 show the blocks for foundation construction in a joined state. Structure A is shown in Figure 3, which shows reinforcing bars 7 and 7 connected together via connectors 8, and is a block structure for foundation construction that has been preformed in a factory etc. for construction of the foundation of a house, etc. This figure shows a joining structure for joining block structures A to each other when the block structures A are connected and placed on a base.

The block structure A is integrally formed with a foundation footing part 1 placed on a foundation and a rising part 2 provided on this foundation footing part 1 and on which an upper structure such as a house is placed. Its cross section is in the shape of an inverted T.

One end surface 3a of the block structure A is provided with two upper and lower protrusions 4a, and the other end surface 3b is provided with two upper and lower recesses 4b that respectively fit with the two protrusions 4a described in Aij.
is provided. A first notch 5 is provided above the rising portion 2 of both end surfaces 3a and 3b, and is open to the end surface 3a3b, the upper surface 2a of the rising portion 2, and the side surface 2b. In addition, on the upper part of the two-chin part 1 of the two end faces 3a and 3b,
A second notch 6 is provided that opens on the two sides 1a (excluding the portion in contact with the upright edge 2) and on both sides 1b and lb.

Further, the first notch 5 is formed on the end face 3 to the block structure.
When parts a and 3b are joined together, the openings of the notches 5 on one side 2b are both on the same side 2b.

In the first and second cutouts 5.6, the ends of reinforcing bars 7.7 passing through the center of the width of the block structure are exposed. The ends of these reinforcing bars 7, 7 are connected to block structure A.
When the block structures A are joined, the notches 5 of the opposing block structures A and A protrude from the end surfaces 3a and 3b of
, 6, and the reinforcing bars 7, 7 extending from the opposing block structures A, A, respectively, are adjacent to each other within the notch 5.6. Threaded portions 7a are provided at the ends of these reinforcing bars 7.7.

- As shown in Fig. 3, these adjacent reinforcing bars 7.7
Two insertion holes 8a, 8 for inserting reinforcing bars 7, 7
The reinforcing bars 7, 7 adjacent to the insertion hole 8a are inserted into the coupling tool 8 having a diameter of 8a from the opposite direction. This coupling tool 8 is a steel pipe 8 that forms an insertion hole 8a.
(b) Two pieces are welded together in the same direction.

Then, the nuts 9 are screwed into the threaded portions 7a, 7a of the two reinforcing bars 7.7 protruding from the coupling tool 8, respectively, and these nuts 9 are tightened from both ends of the coupling tool 8, thereby making the two reinforcing bars 7. reinforcing bars 7.7 are fastened together via connectors 8.

In order to construct a foundation using the joint structure of the foundation construction block structure A of this embodiment, for example, as in the conventional example, roots are cut into the ground at the construction site and ground work is installed (). ,
A foundation will be built on this land by pouring concrete.

On top of this base, self-leveling mortar is poured so that the top surface becomes naturally level when poured. Then, before this mortar hardens, the block structure A is placed on top of the mortar in a continuous manner. At this time, the block structure A to be joined
, A is inserted into one of the reinforcing bars 7. Then, the reinforcing bars 7 of the other block structure A are inserted through the coupling tool 8, and the protrusion 4a of the end surface 3a of one block structure A is fitted into the recess 4b of the end surface 3b of the other block structure A. At this time, even if the position of the reinforcing bar 7 is slightly deviated from the predetermined position, the reinforcing bar 7 will not bend or bend because the protruding part 4a and the recessed part 4b are aligned instead of inserting the reinforcing bar 7 through the connector 8. By doing so, it can be inserted into the insertion hole 8a of the coupling tool 8. Furthermore, even if the end surfaces 3a and 3b of the block structures A and A that should be joined are slightly shifted due to distortion of the base or the bottom surface of the block structure A,
The reinforcing bars 7 can be inserted through the coupler 8 in the same manner as in the state where the reinforcing bars 7 are displaced. Furthermore, since the ends of the reinforcing bars 7 are not joined, even if the lengths of the reinforcing bars 7 are slightly deviated, the connection of the reinforcing bars 7 is not affected.

And, the notch part 5 of the two-piece part 2 and the two-piece part 1,
A nut 9 is screwed into the threaded portion 7a of the reinforcing bar 7 from the opening 1 of the reinforcing bar 7, and this is tightened with a spanner or the like to fasten the reinforcing bars 7 and 7 together via the coupling tool 8. At this time, rather than directly screwing the coupler 8 onto the reinforcing bar 7, the reinforcing bar 7.
Since the reinforcing bars 7.7 are connected to each other via the connector 8 by screwing nuts 9°9 into each of them, the reinforcing bars 7.7 may bend or bend, causing the adjacent reinforcing bars 7, 7 to Even if the direction is slightly deviated, it will not be an obstacle to fastening the reinforcing bars 7.7, and the block structures A, A can be easily joined.

Next, mortar is placed in the notch 5.6 to complete the joining of the block structures A and A as shown in FIG. 1 and the like.

According to the joining structure of the block structures for foundation construction of this embodiment, the reinforcing bars 7.7 of the block structures A and A to be joined to the connector 8 are inserted into the threaded portions 7 of the reinforcing bars 7.7.
Screw the nut 9.9 onto the nut 9.a, 7a.
The block structure A can be easily joined by tightening the reinforcing bars 7. can.

Further, even if the position of the reinforcing bars 7.7, the orientation of the reinforcing bars 7.7, and the positions of the end faces 3a, 3b of the block structures A and A to be joined are slightly shifted, the reinforcing bars 7, 7 can be fastened together. Therefore, the work of joining the block structures A is facilitated, and even an unskilled worker can perform the joining work.

Therefore, it is possible to shorten the construction period and reduce construction costs in constructing the foundations of houses, etc.

Note that the locations and numbers of the protrusions 4a and recesses 4a on the end surfaces 3a and 3b of the block structure A are not limited to the locations and numbers of the embodiments. Needless to say, it is okay to increase the number of people.

Furthermore, the locations and number of reinforcing bars 7 are not limited to those in the embodiment, and may be arranged at the center of the block structure or may be increased in number.

The opening portion of the cutout portion 5.6 is not necessarily limited to the upper surfaces 1a, 2a and the side surface 1b of the footing portion 15 of the diagonal portion 2.
, 2b, and it is not necessary to open the nut 9 on both sides, and the nut 9 may be opened only on either side as long as the nut 9 can be tightened using a spanner or the like.

Furthermore, the notch 5.6 does not necessarily have to be connected to the end surface 3a.
, 3b, it is not necessary to provide the notch 5.6 on either end face 3a, 3b.
Block structure A to be joined to.

The reinforcing bars 7.7 may be extended and adjacent to the U.

[Effects of the Invention] As explained in detail above, according to the block structure for foundation construction of the present invention, the notch portions provided at the end faces of the block structures to be joined to each other and open to the side faces; Insert holes that extend through the block structures to be joined to each other in the longitudinal direction and insert adjacent reinforcing bars in the notch, respectively, and insert holes through which these adjacent reinforcing bars are inserted. The moeki joints are inserted into adjacent reinforcing bars from opposite directions,
Nuts are screwed into the ends of these reinforcing bars, and the nuts are tightened to connect the reinforcing bars to each other. Therefore, the reinforcing bars can be easily fastened to join the block structures.

Further, even if there is a shift in the position or orientation of the reinforcing bars, or a shift between the bonding surfaces of the block structures, the block structures can be joined by fastening the reinforcing bars via the connector.

Therefore, joining of block structures is simplified and labor-saving,
It is possible to shorten the foundation construction period and reduce construction costs.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the present invention, in which FIG. 1 is a perspective view of a foundation construction block structure in a joined state, and FIG. 2 is a perspective view of a foundation construction block structure in a joined state. Fig. 3 is a side view with a part of the construction block structure cut away, and Fig. 3 is a perspective view of the coupling tool in which reinforcing bars are connected to each other.・Foundation two-piece part, 2... Standing two-piece part, 3a... End face, 5... Notch part, 7... Reinforcement bar, 8a... Insertion hole, structure, Ib...side surface, 2b...side surface, 3b...end surface, 6...notch, 8......・Joining tool, 9... Nut.

Claims (1)

[Scope of Claims] A foundation footing placed on the foundation and a rising portion provided on the foundation footing and on which a superstructure such as a house is placed are integrally formed and connected to form the foundation. A joint structure for joining together foundation construction block structures that are installed on top of each other to form the foundation of a house, etc., the notch being provided on the end faces of the block structures to be joined to each other and opening on the side. and a coupling tool extending longitudinally through the block structures to be joined to each other within the notch, adjoining reinforcing bars within the notch, and having insertion holes through which these adjacent reinforcing bars are respectively inserted. The foundation is characterized in that the coupling device is inserted through adjacent reinforcing bars from opposite directions, nuts are screwed together from the ends of these reinforcing bars, and these nuts are tightened to fasten the reinforcing bars to each other. Joint structure of building block structures.