JP3762897B2 - Anchor bolt support device in exposed fixed column base method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is applied to an exposed fixed column base method in which a column base of a steel column is fastened to a plurality of anchor bolts embedded in foundation concrete and projecting at the top end, and the upper end of the anchor bolt is connected to a column. The present invention relates to an anchor bolt support device that is used for positioning and adjusting to a predetermined position aligned with a leg portion and for fixing and supporting a lower end portion of an anchor bolt in foundation concrete.
[0002]
[Prior art]
In this type of exposed fixed column base construction method, for example, many proposals including an anchor bolt support device for foundation concrete, for which the present inventor previously applied for a patent as Japanese Patent Application No. 2001-188359, have been made and implemented. The outline of construction of the column base by the exposed fixed column base method using these anchor bolt support devices will be described with reference to FIGS. 1 to 4 as an example of Japanese Patent Application No. 2001-188359.
[0003]
First, ink is drawn on the foundation ground 1 on which excavated and thrown away concrete is placed, drilled with a tool such as a drill, and the hole-in anchor 2 is driven, and the upper end of the hole-in anchor 2 protruding on the discarded concrete A pair of left and right base members 3 (3A, 3B) formed of a long L-angle material are screwed through the screw portion.
[0004]
As will be described in detail later, the base member 3 connects the base members 3A and 3B to each other at two front and rear positions via an X-axis adjusting unit 4 that performs horizontal positioning adjustment along the X-axis. Each base member 3A, 3B is provided with a post member 6 (6A, 6B, 6C, 6D) formed of a long L-angle material via a Y-axis adjusting portion 5 that performs horizontal positioning adjustment along the Y-axis. ) In the upright position.
[0005]
As will be described in detail later, the post member 6 has an anchor bolt 8 detachably connected to the upper end side via a Z-axis adjusting portion 7 that performs vertical positioning adjustment along the Z-axis. A side plate portion 8 a is attached with an accessory plate 9, which is a temporary member, sandwiched by upper and lower nuts 10, 10.
[0006]
The column base support portion 11 mainly composed of the base member 3, the post member 6 and the anchor bolt 8 has a reinforcing bar (not shown) around the outer periphery, and concrete is placed in a formwork 12 surrounding the periphery. By laying, it is buried in the foundation concrete 13 except for the upper end side screw portion 8a, and is connected to the steel column base (not shown) via the column base and transmits the building load to the foundation ground 1. To make the column base.
[0007]
The column base support part 11 supports the steel column base part via a plurality of anchor bolts 8 (for example, four), but due to reasons such as the top surface of the discarded concrete of the foundation ground 1 being uneven, Since the height position of the upper end side screw portion 8a in each anchor bolt 8 is different or is displaced in the horizontal direction so that it cannot be aligned with the built-in position of the steel column base, this positional shift is before the foundation concrete 13 is placed. It is necessary to detect and correct in advance.
[0008]
For example, the height position of the upper end side screw portion 8a, that is, the Z axis which is the vertical direction, is measured on the ground using the level for any one anchor bolt 8 and becomes a preset reference height position. As described above, after the height of the anchor bolt 8 is adjusted by the Z-axis adjusting portion 7, a level is placed on the accessory plate 9 with respect to the remaining anchor bolt 8 so that the accessory plate 9 becomes horizontal. Then, positioning adjustment is performed by the Z-axis adjusting unit 7.
[0009]
The horizontal position, that is, the X-axis and the Y-axis, draws out a cross-shaped reference line on the top surface of the discarded concrete of the foundation ground 1, and the accessory plate 9 has four measurement holes 14 that coincide with the reference line. Provided, the downward swing 15 is suspended from the measurement hole 14, and positioning adjustment is performed by the X-axis adjustment unit 4 and the Y-axis adjustment unit 5 so that the tip of each downward swing 15 is aligned with the reference line.
[0010]
As shown in FIG. 3, the Z-axis adjusting portion 7 is a deformed reinforcing bar in which a rectangular holding cylinder 16 is fixed to the upper end side of the post member 6 with a mounting screw 17, and the upper and lower end portions are screw shafts and ribs protrude in the middle. The anchor bolt 8 formed in the above is inserted into the holding cylinder 16, and the holding screw 18 screwed to the post member 6 is protruded into the holding cylinder 16 so as to be able to advance and retreat. The anchor bolt 8 is locked and held by being pressed against the concave groove surface 20 between them and performing positioning adjustment in the Z-axis direction.
[0011]
As shown in FIG. 4, the base members 3 </ b> A and 3 </ b> B arranged on the left and right are connected to the lower end side of the post member 6 to the vertical piece 21 (21 a and 21 b) orthogonal to the X-axis direction. The part 4 is provided with a connecting screw shaft 22 extending in the X-axis direction between the vertical pieces 21a and 21b, and a nut 23 is screwed in such a manner that the vertical piece 21 is sandwiched between both ends of the connecting screw shaft 22. The middle of the connecting screw shaft 22 is supported in such a manner that it is inserted through a nut 25 mounted on the support member 24.
[0012]
In the X-axis adjusting unit 4, the nut 23 is loosened and separated from the vertical piece 21, the upper end side of the post member 6 or the anchor bolt 8 is pressed in the X-axis direction to be corrected, and the vertical piece 21 is bent and deformed. After the position of the upper end side threaded portion 8a of the anchor bolt 8 is moved to a desired setting position, when the nut 23 is tightened again in such a manner that the vertical piece 21 is sandwiched, the upper end side threaded portion 8a is positioned at the set position. Can
[0013]
As shown in FIG. 5, the lower end side of the post member 6 is connected to the vertical pieces 21a and 21b of the base members 3A and 3B, but the Y-axis adjusting portion 5 has two connecting screws 24 arranged vertically. And a nut 25, a screw insertion hole 26 in which the screw shaft of the connection screw 24 is closely fitted is formed in the vertical piece 21, and a screw insertion hole 27 in which the screw shaft of the connection screw 24 is loosely fitted is formed on the post member 6 side. It is drilled.
[0014]
In the Y-axis adjusting portion 5, the nut 25 is loosened and the post member 6 is movable with respect to the vertical piece 21, and the upper end side of the post member 6 or the anchor bolt 8 is pressed in the Y-axis direction to be corrected to connect screw After the screw shaft 24 is moved freely in the screw insertion hole 27, the post member 6 is inclined at a desired angle, and the position of the upper end side threaded portion 8a of the anchor bolt 8 is moved to a desired setting position. Can be tightened again to position the upper end side screw portion 8a at the set position.
[0015]
[Problems to be solved by the invention]
As described above, the anchor bolt support device shown in FIGS. 1 to 5 has an inexpensive configuration, and the position of the upper end side screw portion 8a of the anchor bolt 8 is desired in three directions XYZ by a simple operation of loosening or tightening the screw. However, there are still some problems that need to be solved in the prior art including this prior art.
[0016]
In the prior art, the post members are individually supported in an independent state for each of the plurality of anchor bolts. However, the base member on which each post member is erected is formed on a base member integrally formed in a rectangular frame shape or the like. All the post members are erected, or two post members are erected on each L-angle base member as in the embodiment according to FIGS.
[0017]
Thus, if the base member that supports the anchor bolts via the post members does not support each of the plurality of anchor bolts in an independent state, the horizontal direction (X-axis direction and / or Y-axis direction) of the anchor bolts. When performing the positioning adjustment, there is a possibility that it may take time for the adjustment due to mutual interference, or it may not be possible to individually adjust with high accuracy.
[0018]
In general, when the required ground strength cannot be obtained only by the ground surface in contact with the foundation, particularly when the ground includes soft ground, the pile head 28 is disposed in the ground in a manner in which the pile head 28 protrudes on the concrete as shown in FIG. Although the support pile 29 is driven into the pile, the pile head 28 often deviates from the center of the base member due to obstacles in the ground or driving accuracy (the pile core and the column core are inconsistent).
[0019]
As described above, when the pile core and the column core are inconsistent, a part of the base member needs to be raised and installed on the pile head 28, but between the anchor bolt and the post member. Then, even if the height in the Z-axis direction can be adjusted individually, since a plurality of post members share the base member, if a standard base member is used, each post member cannot be raised individually. , Special base members with different heights had to be manufactured and handled.
[0020]
Furthermore, in the case of a structure in which two post members are erected on each L-angle base member as in the embodiment according to FIGS. 1 to 5, the same is true with the anchor bolts aligned in the front-rear or left-right direction. Since it is necessary to be erected from the base member, for example, when each anchor bolt is erected along the circumference or in other forms, it is used in an inconsistent state I couldn't.
[0021]
Therefore, the present invention provides an anchor bolt support device in an exposed fixed column base method capable of solving these problems of the prior art, and a main object is to provide a plurality of anchor bolts without interfering with each other. The upper end can be individually positioned and adjusted in three directions, XYZ, and supported by the post member and the base member, and even when the pile core and the column core are misaligned, the standard base member can be used. It can be achieved by a simple operation of loosening and tightening the screw with the configuration.
[0022]
[Means for Solving the Problems]
In the present invention, a post member is connected to a base member mounted on a foundation ground and erected, an anchor bolt for attaching a steel column base of a building is connected to the post member, and an upper end thread portion of the anchor bolt protrudes. An anchor bolt support device in an exposed fixed column base method embedded in foundation concrete in an aspect is an implementation target.
[0023]
In the anchor bolt support device in the exposed fixed column base method of the present invention, the base member and the post member are configured separately for each anchor bolt, and in the horizontal direction along the X axis and the Y axis and the Z axis. Are supported in such a manner that they can be individually adjusted in the vertical direction along the axis.
[0024]
In this anchor bolt support device, since the base member that supports the anchor bolt via the post member supports each of the plurality of anchor bolts independently, the horizontal direction of the anchor bolt (X-axis direction and / or Y Since the positioning adjustment in the axial direction can be performed individually without mutual interference, the adjustment can be performed quickly and with high accuracy without taking time for adjustment.
[0025]
Also, because the foundation ground is soft and the support pile cannot be set at the center of the base member, the pile core and the column core are inconsistent and part of the base member is raised and Even if it is necessary to install it on the pile head, it can be raised individually on the pile head for each post member by using a standard base member configured separately for each anchor member. There is no need to specially manufacture dedicated base members having different heights as in the prior art sharing the members.
[0026]
Further, as in the prior art sharing the base member, each anchor bolt is not erected from the same base member in a state where it is aligned in the front-rear or left-right direction. For example, each anchor bolt is erected along the circumference. The anchor bolts are individually positioned and adjusted in the XYZ directions by the independent base members and post members, even if they are installed in an inconsistent state due to other forms. Can do.
[0027]
The base member is provided with a Z-axis adjusting portion that arranges the lower end side of the anchor bolt in parallel with the upper end side of the post member and overlaps and connects to a desired height position to perform vertical positioning adjustment. Is separated into each anchor bolt and mounted on the foundation ground, and either the lower end of the post member or the base member is bent and deformed along the X and Y axes to adjust the horizontal position. A configuration in which an adjustment unit and a Y-axis adjustment unit are provided can be employed.
[0028]
In this anchor bolt support device, as a Z-axis adjusting unit for adjusting the positioning in the vertical direction, the anchor bolt is supported in a pressed state by a holding screw attached to the connecting member, or the anchor bolt is screwed to a nut attached to the connecting member. In addition, various forms including a conventionally known technique for connecting the anchor bolt and the post member so that the height can be adjusted are adopted, as well as a mode in which the positioning adjustment hole formed in the post member is selected and the connection member is replaced. It is possible.
[0029]
Moreover, the horizontal positioning adjustment with respect to each anchor bolt comprises an X-axis adjusting portion and a Y-axis adjusting portion using either one of a post member and a base member that supports each anchor bolt independently, This can be easily achieved by bending and deforming along the X and Y axes.
[0030]
In the anchor bolt support device, a post member is formed of a long L-angle material, and a freely threadable screw insertion hole is formed in the lower end side of one piece and the other piece, and the base member is a short L It is composed of first and second base members formed of angle members, and vertical pieces of each base member are arranged along the Y-axis and X-axis, and the lower end side of one piece and the other piece of the post member is a screw insertion hole. The bolts and nuts are connected to each vertical piece of the base member via a bolt, and one side of either the one piece or the other piece is temporarily fixed, and the vertical piece is pushed and pulled on the other side to temporarily fix it. It is possible to adopt a form in which the vertical piece is bent and deformed in the X-axis or Y-axis direction within the range of movement.
[0031]
This anchor bolt support device is a simple and simple screw-fixing method using a base member formed by allowing a vertical piece to be bent and deformed with a short L-angle material and a rigid post member formed with a long L-angle material. It is an inexpensive configuration, and after adjusting the horizontal position by a simple operation of tightening and fixing the screws after loosening the screws and flexing and deforming each vertical piece of the base member in the X-axis direction and the Y-axis direction as desired. be able to.
[0032]
The anchor bolt support device is formed by forming a post member with a long L-angle material, and by providing a flexible piece separated on the lower end side of one piece and the other piece to make a loose screw insertion hole, The base member is formed integrally by connecting L-shaped first and second vertical pieces to a horizontal piece, and the first and second vertical pieces are arranged along the Y-axis and the X-axis. Each flexible piece is connected to each vertical piece of the base member with a bolt and a nut through a screw insertion hole, and one side of the flexible piece is temporarily fixed, and the other flexible piece is pushed and pulled. Further, it is possible to adopt a form in which the flexible piece is bent and deformed in the X-axis or Y-axis direction within the loose range of the temporarily tightened one-side bolt.
[0033]
In this anchor bolt support device, a base member formed by each L-shaped and rigid vertical piece and a post member formed by a flexible piece that can be deformed by bending the lower end side with a long L-angle material are used. It is a simple and inexpensive structure that secures the screw, and after loosening the screw and flexing and deforming the post piece flexible pieces in the X-axis direction and Y-axis direction, the screw can be tightened and fixed in the horizontal direction. Can be adjusted.
[0034]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an anchor bolt support device in the exposed fixed column base method according to the present invention will be described in detail with reference to FIGS. 6 to 15 showing a preferred embodiment thereof. FIGS. FIG. 6 is a front view of the supporting device, FIG. 7 is a plan view of the supporting device, and FIG. 8 is a perspective view of a positioning adjustment state in the horizontal (X-axis and Y-axis) directions. 9 is a front view showing a positioning adjustment state with respect to the vertical (Z-axis) direction.
[0035]
The support device 30 (30A) is erected by a base member 33 fixed by a hole-in anchor 32 and a lower end portion of the base member 33 detachably fixed to the base member 33 on a foundation ground 31 on which a discarded concrete is cast. 1 and 2 are formed as main portions of the post member 34 and an anchor bolt 36 detachably supported via a connecting member 35 provided on the upper side of the post member 34. Similar to the conventional structure shown, an attachment plate (not shown), which is a temporary member, is attached.
[0036]
In the first embodiment, four anchor bolts 36 are used, and a long L-angle material is used for the post member 34 that supports each anchor bolt 36, and the vertical height adjustment is performed. As in the conventional structure shown in FIG. 3, the Z-axis adjusting portion is configured by a connecting member 35 to which a holding screw 35a is attached, and the base member 33 is a first base member 37 formed by two short L-angle members. And the second base member 38.
[0037]
The base member 33 (33A, 33B, 33C, 33D) superposes the vertical piece 37a of the first base member 37 on one side 39 of the post member 34 (34A, 34B, 34C, 34D), and The vertical piece 38a is superposed on the other side 40 of the post member 34, and the horizontal piece 38b of the second base member 38 is superposed on the horizontal piece 37b of the first base member 37 and placed on the foundation ground 31. Yes.
[0038]
The base member 33 is formed by screwing a horizontal piece 37b and a horizontal piece 38b with a nut 41 to an upper end threaded portion of a hole-in anchor 32 projecting from the discarded concrete of the foundation ground 31, and attaching a post member 34 to the vertical piece 37a. One side 39 is screwed with a bolt 42 and a nut 43, and the other piece side 40 of the post member 34 is screwed with a bolt 44 and a nut 45 to the vertical piece 38a. The vertical pieces 37a and 38a are arranged at right angles. .
[0039]
The base member 33 is arranged in such a manner that the base members 33A and 33B and the base members 33C and 33D are aligned in the left-right direction, and the base members 33A and 33C and the base members 33B and 33D are separated in the front-rear aligned state. Accordingly, the post members 34A, 34B, 34C, 34D are erected independently from each of the base members 33A, 33B, 33C, 33D, and a plurality of (four) anchors are provided on each post member. The bolts 36 are connected in an independent state.
[0040]
Each post member 34 is connected to each base member 33 in the same manner as in the prior art shown in FIG. 5 by bolts 42 and 44 being closely fitted to the vertical pieces 37a and 38a of the first and second base members 37 and 38. A screw insertion hole 46 is formed in the one side 39 and the other side 40 of the post member 34. The bolts 42 and 44 are inserted into the screw insertion hole 46. The nuts 43 and 45 are screwed together.
[0041]
In this connection structure, the nut 43 is loosened so that the one piece 39 of the post member 34 can move with respect to the vertical piece 37a, and when the upper end side of the post member 34 or the anchor bolt 36 is pressed in the X-axis direction to be corrected, the bolt Since the vertical piece 38a can be bent and deformed in an inclined state by the other piece 40 of the post member 34 within a range in which the screw 42 can freely move in the screw insertion hole 46, the X-axis direction with respect to the upper end side of the anchor bolt 36 is thereby positioned as desired. And it fixes by the fastening of the nut 43, and comprises an X-axis adjustment part.
[0042]
Further, when the nut 45 is loosened so that the other piece 40 of the post member 34 can move with respect to the vertical piece 38a and the upper end side of the post member 34 or the anchor bolt 36 is pressed in the Y-axis direction to be corrected, the bolt 44 is screwed. Since the vertical piece 37a can be bent and deformed in an inclined state by the one piece 39 of the post member 34 within a range in which the inside of the insertion hole 46 can be moved freely, the Y axis direction with respect to the upper end side of the anchor bolt 36 is thereby positioned as desired. The Y-axis adjusting unit is configured by being fixed by fastening 45.
[0043]
In this way, the horizontal position on the upper end side of each anchor bolt 36 is conventionally adjusted by the simple and inexpensive X-axis adjusting portion and Y-axis adjusting portion formed between each base member 33 and each post member 34. Since it can be adjusted individually without mutual interference as in the case of technology, it can be positioned easily and accurately in a short time, and according to this independent anchor support structure, each anchor bolt is misaligned in the front-rear or left-right direction. The present invention can also be applied when standing in a state.
[0044]
Further, by making the post member 34 and the base member 33 supporting the anchor bolts 36 independent anchor support structures, for example, the pile core of the pile head 47 projecting on the foundation ground 31 as shown in FIG. In the case of misalignment with the center (column core) of each anchor bolt 36, a part of the base member 33 is individually raised on the pile head 47 and the post is formed by the connecting member 35 constituting the Z-axis adjusting portion. This can be dealt with by adjusting the connecting position of the anchor bolt 36 to the member 34.
[0045]
In the illustrated first embodiment, the screw insertion holes 46 are provided at two positions in the vertical direction. However, when the free range is set to be large, the upper hole is made larger than the lower hole. In addition, it is possible to adopt a form in which an arc-shaped oval hole is formed, and it is also possible to adopt a form in which the screw insertion hole 46 is provided at one place or at two places in the lateral direction.
[0046]
FIG. 10 is a plan view showing another connection structure of each post member 34 to each base member 33. In the first embodiment, the vertical piece 37a of the first base member 37 and the vertical piece of the second base member 38 are perpendicular to each other. Whereas the one piece 39 and the other piece 40 of the post member 34 are connected to the inside of the piece 38a, the connecting structure of FIG. 10A has the vertical piece 37a and the second base member of the first base member 37. This is an embodiment in which one piece 39 and the other piece 40 of the post member 34 are connected to the outside of the vertical piece 38a.
[0047]
10B does not connect the first base member 37 and the second base member 38 in a superposed state, but separates the first base member 37 and the second base member 38 in a right angle state. The one piece 39 of the post member 34 is connected to the inside of the vertical piece 37a of the first base member 37, and the other piece 40 of the post member 34 is connected to the inside of the vertical piece 38a of the second base member 38. It is an embodiment.
[0048]
FIG. 11 is a front view of a support device 30 (30B) in which the Z-axis adjusting portion is another embodiment, and FIG. 12 is a cross-sectional view of the main part. On the other hand, a positioning adjustment hole 48 is formed at predetermined intervals, and a connection member 49 that is screwed is provided in the positioning adjustment hole 48, and a nut for screwing the lower end side screw portion 51 of the anchor bolt 36 to the connection member 49. 50 is welded.
[0049]
In the support device 30B, the lower end side of the post member 34 is connected and supported by the independent base member 33 as in the first embodiment, and each post member 34 is placed on the X axis and the Y axis with respect to each base member 33. The horizontal position of the anchor bolt 36 can be adjusted, and the attachment plate 53, which is a temporary member, is attached to the upper end side threaded portion 52 of the anchor bolt 36 in a manner that is sandwiched by upper and lower nuts. .
[0050]
In the Z-axis adjusting portion in the support device 30B, when the pile core of the pile head 47 protruding on the foundation ground 31 is not aligned with the center (column core) of each anchor bolt 36, some base members 33 is individually raised on the pile head 47, and the attachment position of the connecting member 49 constituting the Z-axis adjusting portion with respect to the post member 34 is selected from any of the positioning adjustment holes 48 to perform coarse adjustment, and the nut The height of the anchor bolt 36 is adjusted by performing fine adjustment according to the screwing position of the lower end side threaded portion 51 connected to 50.
[0051]
As described above, the connecting portion between the post member 34 and the anchor bolt 36 in the support device 30 (30A, 30B) can change the base member 33 by changing the portion that overlaps the upper and lower ends of the both in parallel. The Z-axis adjustment unit is configured to raise the pile head 47 or set the upper end side threaded portion of the anchor bolt 36 to a height position suitable for the steel column base, but is limited to the above embodiment. It is also possible to adopt a form to which a conventionally known structure having the same function is applied without any problem.
[0052]
The advantages and disadvantages of the Z-axis adjusting portion in the support devices 30A and 30B will be briefly described. When the anchor bolt 36 is supported in a press-contact state by the press screw 35a attached to the connecting member 35 of the support device 30A, the press screw 35a. There is an advantage that the height can be adjusted by a simple operation of tightening or loosening, but sufficient connection support force cannot be obtained due to insufficient tightening, or the push screw is aligned between the ribs of the anchor bolt 36. Since it is necessary, there is a problem that necessary fine adjustment cannot be performed.
[0053]
Further, when the anchor bolt 36 is screwed into the nut 50 attached to the connecting member 49 of the support device 30B, and the positioning adjustment hole 48 of the post member 34 is selected and the connecting member 49 is replaced, the nut 50 is screwed. The anchor bolt 36 can be firmly supported, and there is an advantage that the necessary fine adjustment is easy by adjusting the screw. However, there is a disadvantage that the operation of replacing the connecting member 49 is somewhat complicated.
[0054]
Next, FIGS. 13 and 14 are other embodiments of the X-axis adjusting unit and the Y-axis adjusting unit that adjust the horizontal direction, FIG. 13 is a perspective view of the main part, and FIG. 14 is a plan view of the main part. In the above-described embodiment, the base member is bent and deformed to adjust in the horizontal direction. In this embodiment, the flexible piece provided on the lower end side of the post member is bent and deformed to adjust in the horizontal direction. I am doing so.
[0055]
In this embodiment, on the upper side of the post member 55 connected to the base member 54, the height of the anchor bolt 36 can be adjusted via the Z-axis adjusting portion as in the case of the support device 30 (30A, 30B). The base member 54 is formed by bending the first and second vertical pieces 56 and 57 into an L shape and connecting the vertical pieces 56 and 57 with the horizontal piece 58. It is configured integrally.
[0056]
The post member 55 is formed of a long L-angle material having one piece 59 and the other piece 60, and a notch groove 61 is provided on the lower end side along a corner where the pieces 59 and 60 are joined. The deformable flexible pieces 59a and 60a are formed, and the base member 54 has the horizontal piece 58 fixed to the hole-in anchor 32 with the nut 41.
[0057]
The base member 54 and the post member 55 are connected by polymerizing the flexible piece 59a of the post member 55 inside the first vertical piece 56 of the base member 54 and fixing the flexible piece 59a with the bolt 62 and the nut 63. The flexible piece 60a of the post member 55 is superposed inside the second vertical piece 57 and fixed by a bolt 64 and a nut 65. The first and second nuts 62 and 64 can be freely moved on the flexible pieces 59a and 60a. A screw insertion hole (not shown) similar to that of the embodiment is formed.
[0058]
In the X-axis adjusting portion with this connection structure, the nut 63 is loosened so that the flexible piece 59a of the post member 55 can move relative to the first vertical piece 56, and the upper end side of the post member 55 or the anchor bolt 36 is to be corrected. When pressed in the X-axis direction, the post member 55 is tilted within a range in which the bolt 62 can freely move in the screw insertion hole, and the flexible piece 60a pressed against the upper end edge of the second vertical piece 57 is bent and deformed in an inclined state. Therefore, the X-axis direction with respect to the upper end side of the anchor bolt 36 is thereby positioned as desired and fixed by fastening the nut 63.
[0059]
The Y-axis adjusting portion loosens the nut 65 so that the flexible piece 60a of the post member 55 can move relative to the second vertical piece 57, and the upper end side of the post member 55 or the anchor bolt 36 is to be corrected in the Y-axis direction. When pressed, the post member 55 is inclined within a range in which the bolt 64 can freely move in the screw insertion hole, and the flexible piece 59a pressed against the upper edge of the first vertical piece 56 is bent and deformed in an inclined state. The Y-axis direction with respect to the upper end side of the anchor bolt 36 is positioned as desired and fixed by fastening the nut 65.
[0060]
In the embodiment shown in FIGS. 13 and 14, the flexible pieces 59a and 60a are formed by separating the lower ends of the one piece 59 and the other piece 60 of the post member 55 by a notch groove 61. It is also possible to adopt a form in which each flexible piece 59a, 60a is formed by welding a separately formed plate-like piece to the lower end side of the one piece 59 and the other piece 60 in the member 55.
[Brief description of the drawings]
FIG. 1 is a perspective view of an anchor bolt support device in an exposed fixed column base method according to the prior art.
FIG. 2 is a front view of the anchor bolt support device shown in FIG.
FIG. 3 is an enlarged perspective view of a Z-axis adjusting unit that adjusts the height position of the anchor bolt in the anchor bolt support device shown in FIG. 1;
4 is an enlarged front view for explaining the operation of an X-axis adjusting unit that adjusts the horizontal position of the anchor bolt in the anchor bolt support device shown in FIG. 1;
5 is an enlarged front view for explaining the operation of a Y-axis adjusting unit that adjusts the horizontal position of the anchor bolt in the anchor bolt support device shown in FIG. 1;
FIG. 6 is a front view of a support device according to a first embodiment to which an anchor bolt support device is applied in the exposed fixed column base method according to the present invention.
7 is a plan view for explaining the operation of the X-axis adjusting unit and the X-axis adjusting unit for adjusting the horizontal position of the anchor bolt in the anchor bolt support device shown in FIG. 6;
8 is a perspective view of a connecting structure of a base member and a post member in the anchor bolt support device shown in FIG. 6. FIG.
9 is a front view for explaining an operation of raising a base member and a post member by a Z-axis adjusting unit that adjusts a vertical position of the anchor bolt in the anchor bolt support device shown in FIG. 6;
10 is a plan view showing another embodiment of the connecting structure of the base member and the post member in the anchor bolt support device shown in FIG. 6. FIG.
11 is a front view showing another embodiment of a connection structure between a post member and an anchor bolt in the anchor bolt support device shown in FIG. 6; FIG.
12 is a plan view of a connecting member used in the connecting structure shown in FIG.
13 is a perspective view showing still another embodiment of a connecting structure of a base member and a post member in the anchor bolt support device shown in FIG. 6. FIG.
14 is a plan view of the connection structure shown in FIG. 7. FIG.
[Explanation of symbols]
30, 30A, 30B (for anchor bolt) support device
31 foundation ground
32 hole-in anchor
33, 33A, 33B, 33C, 33D, 54 Base member
34 34A, 34B, 34C, 34D, 55 Post member
35, 49 connecting members
36 Anchor bolt
37 First base member
38 Second base member
39, 59 One piece (of post member 34)
40, 60 The other piece (of the post member 34)
41, 43, 45, 50, 63, 65 Nut
42, 44, 62, 64 bolts
46 Screw insertion hole
47 Pile head
48 Positioning adjustment hole
51 Lower end side thread portion (of anchor bolt 36)
52 Upper end side thread portion (of anchor bolt 36)
53 accessory plate
56 First vertical piece (of base member 54)
57 Second vertical piece (of base member 54)
58 Horizontal piece (of base member 54)

Claims (2)

Basic concrete in such a manner that the post member is connected to the base member mounted on the foundation ground and erected, the anchor bolt that attaches the steel column base of the building is connected to the post member, and the upper end threaded portion of the anchor bolt protrudes In the exposed fixed column base method embedded in, the lower end side of the anchor bolt is arranged in parallel with the upper end side of the post member, and is connected by overlapping with a desired height position to adjust the vertical direction. The base member is separated for each anchor bolt and mounted on the foundation ground, and either the lower end side of the post member or the base member is bent along the X axis and the Y axis. An X-axis adjusting unit and a Y-axis adjusting unit that perform horizontal positioning adjustment by deformation are provided,
The post member is formed of a long L-angle material, and a freely threadable screw insertion hole is formed in the lower end side of one piece and the other piece, and the base member is a first L-angle material formed of a short L-angle material. And the second base member, and the vertical pieces of the base members are arranged along the Y-axis and the X-axis, and the lower end side of the one piece and the other piece of the post member is connected to each of the base members via screw insertion holes. Connect the vertical piece to the vertical piece with a bolt and nut, place one side of either the one piece or the other piece in the temporarily fixed state, push the vertical piece on the other side, and pull the vertical piece within the floating range of the temporarily fixed one-side bolt. An anchor bolt support device characterized by bending and deforming in the X-axis or Y-axis direction . Basic concrete in such a manner that the post member is connected to the base member mounted on the foundation ground and erected, the anchor bolt that attaches the steel column base of the building is connected to the post member, and the upper end threaded portion of the anchor bolt protrudes In the exposed fixed column base method embedded in, the lower end side of the anchor bolt is arranged in parallel with the upper end side of the post member, and is connected by overlapping with a desired height position to adjust the vertical direction. The base member is separated for each anchor bolt and mounted on the foundation ground, and either the lower end side of the post member or the base member is bent along the X axis and the Y axis. An X-axis adjusting unit and a Y-axis adjusting unit that perform horizontal positioning adjustment by deformation are provided,
The post member is formed of a long L-angle material, and a flexible piece separated at the lower end side of one piece and the other piece is provided to form a loose screw insertion hole, and the base member is L-shaped. The first and second vertical pieces are connected to the horizontal piece to form a single piece, and the first and second vertical pieces are arranged along the Y-axis and the X-axis, and each flexible piece of the post member is threaded. Bolts and nuts are connected to each vertical piece of the base member through holes, and one side of the flexible piece is temporarily fixed, and the other flexible piece is pushed and pulled to temporarily fix it. An anchor bolt support device , wherein the flexible piece is bent and deformed in the X-axis direction or the Y-axis direction within the free movement range .

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