JPS5968432A - Laying of anchor bolt - Google Patents

Abstract

PURPOSE:To exactly lay anchor bolts in the foundation concrete by a method in which a scale plate showing the installation interval of the anchor bolts is screwed through a nut with the upper end threaded portion of the anchor bolts projected on the supporting plate. CONSTITUTION:An anchor bolt 1 is inserted into the through hole 7 of a supporting plate 6, the upper end threaded portion 3 of the bolt 1 is thrust through the supporting plate 6 and connected with a nut 8 lightly, and the anchor bolt 1 is hung down through the supporting plate 6 between beam formworks 11 and the lower end of the bolt 1 is fixed to a stopper 2 set at a right angle to the formwork direction between the lower ends of the beam formworks 11. The through hole 13 of a scale plate 12 showing the installation interval of the bolt 1 is thrust with the tip end threaded portion 3, and the verticality of the bolt 1 is corrected while matching the position of the bolt 1 with the through hole 13. The nut 8 is clamped on the supporting plate 6, and then the scale plate 12 is removed out of the threaded portion 13. Concrete 14 is placed into the space between the beam formworks 11 to bury the anchor bolt 1 in the foundation concrete.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for embedding anchor bolts, mainly for steel-based structures, in which anchor bolts are buried in concrete at accurate positions.

Conventionally, anchor bolts have been fixed between the upper ends of the left and right formworks of plate plates with bolt holes, nuts are placed on the anchor bolts through the bolt holes, and the anchor bolts are filled with concrete and buried. Therefore, even if the anchor bolt is hung at the center between the left and right formwork at each location, if the formwork is curved, multiple anchor bolts may be buried in the direction of the foundation. The centers of positions cannot coincide. In addition, the spacing between anchor bolts in the direction of the foundation is determined by measuring each anchor bolt between adjacent anchor bolts before burying them. For example, if a foundation containing three or four anchor bolts is installed in one foundation from a reference point, The farther apart the anchor bolt is from the second, third, etc., the more likely it is that errors will occur with the design dimensions, and the disadvantage is that it will be impossible to fit the foundation onto the foundation, and it will take time to measure the distance one by one. There were also drawbacks.

Furthermore, because the anchor bolt is suspended and filled with concrete, the lower end of the anchor bolt is washed away by the flow pressure of the concrete, and the anchor bolt loses its perpendicularity to the top of the foundation. There were also structural shortcomings in that the stress caused by the pull-out action was not immediately transferred to the foundation.

In particular, in the foundations or frames of steel-based houses, holes for anchor bolts are pre-drilled at the factory and delivered to the site, so the position of the anchor bolts buried in the foundation concrete is not the same as the bolt hole in the foundation. If this did not match, the result would be that it would not be possible to construct a new building, which had the drawback of requiring a large amount of wasted expense to correct it.

The present invention was researched to eliminate the above-mentioned drawbacks, and its gist is to insert an anchor bolt into a hole in a support plate between the ends of a beam formwork that has been installed in advance, and to The threaded part is made to protrude above the support plate at a certain height and is suspended between the left and right formwork through the support plate, and a stopper is fixed to the lower end of the anchor bolt at right angles to the anchor bolt. The anchor bolts are passed between the lower ends of the formwork, and the anchor bolts are installed using a shaku plate that indicates the spacing (the shaku plate has bolt holes drilled as necessary and serves as a ruler of a certain length to indicate the spacing between the anchor bolts). ) into the tip threaded part protruding on the support plate of each anchor bolt, and using this as a reference for spacing, align the anchor bolts with the bolt holes on the length plate, and make sure they are vertical. After fixing the bolts, compact them individually on the support plate to immobilize them. 2. Next, remove the shaku plate from the threaded end of each anchor bolt, fill the space between the left and right beam formwork with concrete, and add it to the foundation concrete. This is to bury the anchor bolt.

Therefore, the present invention aims to make the position (orientation) of the shaku plate provided on the support plate accurate even if the accuracy (especially the alignment of the beam formwork) is inaccurate after the beam formwork is temporarily installed. According to
There is no need to measure the position and spacing of anchor bolts individually.
In addition, even if the foundation concrete path is curved, temporary anchorage has the effect of allowing anchor bolts to be buried according to the design of the path and spacing in the direction of the foundation.

Next, one embodiment illustrated in the present invention will be described in detail.

The anchor bolt (1) used in the present invention is a round steel having a certain length as shown in Fig. 3 (4) (it may be of a different shape).
At the bottom end of the stopper (2) perpendicular to the anchor bolt (1).
) (irrespective of the cross-sectional shape, such as round steel or square steel) is fixed, and on the other hand, the upper end has a threaded portion (3) of a certain length.

Alternatively, it may be a round steel with a threaded portion (3) at the upper end and a head (4) at the lower end as shown in Fig. 3 (B) (for example, a hexagonal bolt or a square bolt) or Fig. 3C. ) with a hook (5) at the bottom end can also be used.

Next, anchor bolt (1) in Figure 3 (5)? To use, insert the upper threaded part (3) of the anchor bolt (1) into the through hole (7) of the support plate (6) shown in Fig. 4, and insert the at (8) onto the support plate (6). Beam formwork 1 installed in advance on a footing formwork αω that is lightly laid and has a space (9)
Suspend the anchor bolt (1) from the lower end of the anchor bolt (1) through the support plate (6) at the approximate location where the anchor bolt (1) will be buried between the holes 9 and 9, and place the stopper (2) at right angles to the direction of the force of the beam formwork aυ. , and lightly compact the support plate (6) north ant [F]).

Next, when using the anchor bolt (1) shown in FIG. 3(B), the support plate (6) and the two through holes (7) shown in FIG.
Insert the anchor bolt α) into 1, use the lower piece as a stopper (2), use the upper piece as a support plate (6), and lightly tighten the nut (8) on the support plate (6). , hang between the beam formwork 09 as in Figure 3, support plate (6) and stopper (2).
) is 1 degree perpendicular to the direction of the beam formwork αυ and fixed lightly.

In addition, when using the anchor bolt (1) shown in Fig. 3 (Q), insert the anchor bolt (1) into the support plate (6) and through hole (7).
) is inserted into the beam formwork survey, and suspended between the lower ends of the beam formwork U. Pass the stopper body (2), which is temporarily made of round steel, on an anchor (5), and place it on the support plate (6). (8) is lightly hardened, and then the support plate (6) is fixed regardless of the shape of the anchor bolt (1).
) The tip threaded part (3) of the anchor bolt (1) that protrudes above
) Insert the bolt holes 3 of the shaku plate α2, which have been drilled in advance at the burial intervals of the anchor bolts (1), and vertically align the bolt holes q on the shaku plate. - Directly correct 1, or align the path of the length plate t1 with a pre-set reference water system (not shown), etc., and then adjust the support plate (
6) Using the beam formwork U as a medium, firmly tighten the upper nand (8) from above and below to keep the anchor bolts (1) immovable. If it is removed from part (3) and filled with concrete I, the spacing and position of the anchor bolt (1) can be accurately buried regardless of the direction of the foundation concrete A without measuring on both sides of the spacing metal. It has the effect of

Also, the support plate (6) has an anchor pole in the center) (1) '
e Since it is a board with a through hole (7) for insertion, it is a beam formwork aD.
At the top, the position can be freely adjusted in the foundation width direction and foundation direction. Further, the material structure of the support plate (6) is free as long as it has through holes (7). Also, the accuracy of the buried position of the anchor bolt (1) is determined by the clearance with the bolt hole fIl on the side of the length plate C1.

Also, the verticality of the anchor bolt (1) is determined by the tip threaded portion (3) of the bolt hole (anchor bolt α in 13) of the shaku plate (L'
) can be confirmed within the range of a light fit.

Also, the shaku plate aS is shown in Figure 5 (A) (B) (C) Q))
It may be used as necessary, as shown in VC. Furthermore, the cross-sectional shape and material of the shakuban mackerel are free.

In addition, the stopper (2) is fixed to the lower end of the anchor bolt (1) and spans between the lower ends of the beam formwork αυ, and has a strength that does not deform under the stress of tightening the anchor bolt (1) between the support plates (6). If there is, the shape can be freely selected as described above.

As mentioned above, the present invention differs from the shape of conventional anchor bolts in that its lower end is shaped like a T-7, and extends between the lower ends of the beam formwork, and on the other hand, the support plate extends between the beam formwork and the ends. The threaded end of the anchor bolt is made to protrude into the hole, and the bolt hole of a predetermined shaku plate is inserted into the threaded end that protrudes onto the support plate to regulate the spacing between the anchor bolts and supported using the beam formwork as a medium. This method eliminates the drawbacks of the conventional method and allows the anchor bolts to be buried in the correct position in the foundation concrete, as it is antral compacted with a plate, the position of the anchor bolt is fixed, the shingle plate is removed, and the foundation concrete is filled. There are advantages to roasting.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a horizontal and vertical cross-sectional view of an anchor bolt attached to a beam formwork. FIG. 2 is a sectional view taken from FIG. 1 (5). Figure 3 (4
) is a perspective view of the anchor bolt with the stopper secured. FIG. 3(B) is a perspective view of the general head anchor bolt. Figure 3 (Q
This is a slope view of Hook Tube Anchor Port 111. FIG. 4 is a perspective view of the support plate. Figure 5 (5) is a slope view of the shaku plate. Figure 5 (
B) is a plan view of the L-shaped scale plate. FIG. 5 (Q is a plan view of a T-shaped shaku plate. FIG. 5 0 is a plan view of a cross-shaped shaku board. FIG. 6 is a plan view showing a state in which a beam is attached to a frame 1 with shaku boards and anchor bolts. 1...Anchor bolt, 2...
・・Stopping body, 3・°・・・・Screw part, 4・・・・
...Head, 5...Fun, 6...
...Support plate, 7...Through hole, 8...
・・・・・・Natsuto, 9・・・・・・・・・Space, 10・
...Two-column formwork, 11...Beam formwork,
12...Shaku plate, 13...Bolt hole, 1
4...Concrete 14 Procedural amendment writing axis November 13, 1999 Director General of the Japan Patent Office (Mr. + Imo←Joji → Chito (Mr.)) 1. Indication of the case Showa - F1 year l Tuna store kidney request No. 2, Invention ÷ Name of H -7:,,,Gi-,+1. −
1-Meya'1 trunk power] Fox 3, relationship with the amended person case Freshness Applicant shi:・i! (i, hei ri, c Q゛'L H&l=
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v) The scope of claims on page 1 of the specification is amended as follows. The head screw part (3) of the anchor bolt (1) protrudes a certain length into the support plate (6) passed between the left and right beam forms (11) and the through hole (7), and the nut (8) ) and the foundation beam formwork (
11) While suspending the anchor bolt (1) through the support plate (6), the lower end (2) of the anchor bolt (1) is attached to the beam formwork (
11) Hang the lower end, and then fit the matching bolt holes (13) of the length plate (12) into the head threads (3) of each anchor bolt (1) to determine the position of the anchor bolt (1). After that, the nut (8) is compacted on the support plate (6), then the length plate (12) is removed and the concrete (14) is compacted.
A method for burying an anchor bolt, characterized by a configuration in which it is filled with. 2. On page 3, line 8, next to “Anchor bolt position” is “
(interval)” is added. 3. On page 3, line 18, ``ni'' in ``bottom edge'' is corrected to ``wo''. 4. On page 3, line 19, after "Right angle", it can also be placed at the end of the T-shape. Next, add 27°. Lower 20
On page 8, line 5, "stop body (2) ke" is deleted. Also, add r (2) j next to "lower end" and change "ni" to "
Correct it to ``ke''. 21. On the 6th line of page 8, delete ``fixed'' and add ``lower end or'' next to [beam formwork (11) J]. 22 On page 8, line 9, next to “Selectable.” [Also, the hook (5) of the anchor bolt (1) shown in Figure 3 (B)
has the same function as the lower end portion (2) shown in FIG. 3(4). ” to join. 23 On page 8, line 11, add “1 or L-shape” after “1-shape”. 24. On page 8, line 12, add ``bottom end or'' after ``of the beam formwork''. 25. In line 908, the phrase ``The stop body was fixed'' was deleted and the phrase ``The lower end was shaped like a single character'' was added. 26, same page 9, brief explanation of the drawings, Figure 3)
``Figure 3 (C)'' was changed to ``Figure 3 (Figure 3 (C)'').
B)” and the drawing. On page 9, line 16, “2...stop body” was changed to “2...
...Corrected to ``edge.''that's all

Claims (1)

[Claims] The head screw portion (3) of the anchor bolt (1) is made to protrude a certain length into the support plate (6) and the through hole (7).
't-hung between the foundation beam forms 09 via the support plate (6), and passing the stopper (2) at the lower end of the anchor bolt (1) between the lower ends of the beam forms aυ; Furthermore,
After fitting the head screw part (3) of each anchor bolt (1) into the corresponding bolt hole Ht' of the shaku plate and determining the position of the anchor bolt (1), tighten the nut (8). ) with the support plate (6) and h, then remove the shaku plate ←,
It is characterized by a structure filled with concrete α4. How to bury anchor bolts.