JP2005133412A - Support device of anchor bolt for foundation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a support device of an anchor bolt for a foundation eliminating influences due to deformation of reinforcements or the like, facilitating adjustment of the horizontal position, increasing the bearing force to a column, and improving a connection hardware of the upper side structure connectedly supporting the anchor bolt to obtain a firm connecting support. <P>SOLUTION: The support device is constituted of a lower part structure 3A erecting a columnar member through a horizontal position adjustment part on a foundation ground and an upper part structure 3B connecting an anchor bolt 2 to which a column of a building is fitted through a vertical position adjustment part to the upper end side of the support member 6. A connection hardware 23 provided with a plurality of engaging holes 24, 25 attaching a plurality of anchor bolts 2 to be adjustable the height to the support member 6 is provided in the upper side structure 3B. A connection bolt 26 which comes into pressure contact with the fixing holes 24, 25 by pushingly pressing the anchor bolts is provided to form a support device of the anchor bolts. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  TECHNICAL FIELD The present invention relates to an anchor bolt support device that is erected on a foundation ground and supports anchor bolts, and that is embedded in a foundation concrete of a building in such a manner that the upper end thread portion of the anchor bolt protrudes. The present invention can be applied to an anchor bolt support device on a foundation or a column base.

  For example, in the case of a fabric foundation, this type of anchor bolt support device is constructed in such a manner that the anchor bolt is embedded in a reinforced concrete (RC) foundation and protrudes on the foundation concrete in a desired horizontal position and vertical position. Although it is installed, as a general method to make this anchor bolt self-supporting, the anchor bolt is tied to the horizontal part of the reinforcing steel bar (called horizontal reinforcing bar or horizontal reinforcing bar) with a binding wire, or solidified after placing concrete There is a method of inserting anchor bolts into the previous concrete.

  However, in the case of the former method of tying with the tie wire, it takes time and work efficiency is poor, there is a risk of misalignment during tying, it is difficult to adjust the position after tying once, After installation, the binding work is difficult due to the space, the work procedure is restricted, and the binding strength varies depending on the level of proficiency of the operator and the quality is not stable.

  Also, in the case of the latter method of inserting the anchor bolt, commonly called “rice planting type”, the properties of the concrete change depending on the season and other conditions, so it is difficult to set the timing of insertion, There is a possibility that displacement may occur when hitting the internal rebar, and particularly in concrete with a large slump (softness of construction), there is a problem that the anchor bolt may be tilted by its own weight after being inserted.

Further, in order to improve these conventional techniques, for example, as disclosed in Patent Documents 1 to 3 and the like, a horizontal portion connected to a horizontal portion (referred to as a horizontal reinforcing bar or a horizontal reinforcing bar) of a reinforcing rod embedded in a reinforced concrete as a foundation. Proposals have been made regarding a holder for a foundation anchor bolt in which a holding portion and a vertical holding portion connected to the anchor bolt are integrally formed.
JP 2002-294720 A JP 2001-131990 A JP 2001-107371 A

  In holders such as Patent Documents 1 to 3, when a horizontal reinforcing bar or an anchor bolt is attached by press-fitting, there is a risk that a pressing force acts on the horizontal reinforcing bar to deform the vertical reinforcing bar via the horizontal reinforcing bar or the horizontal reinforcing bar. It is connected by crimping and can be adjusted in the axial direction, and it can be easily tilted in the direction that the anchor bolt is perpendicular to the horizontal reinforcing bar. If an external force is applied to the bolt or holder, it may cause a position shift. If you notice a position shift in advance, readjustment is necessary. The damage is enormous.

  In view of these prior arts, the present applicant previously disclosed in Japanese Patent Application No. 2002-212417 (prior application 1) an anchor bolt having a structure in which an anchor bolt is supported on a base member on a foundation ground via a support member. In addition to the proposal of the support device, in Japanese Patent Application No. 2003-315706 (prior application invention 2), the holders of Patent Documents 1 to 3 and the like are improved and used for fabric foundations such as horizontal reinforcing bars arranged on the foundation ground We have proposed anchor bolt retainers that are structured to hold anchor bolts with steel bars.

  In the first invention of the present application, the column member is erected by connecting the column member via the horizontal position adjusting means to the base member mounted on the foundation ground, and the anchor bolt for mounting the column of the building is positioned vertically with respect to the column member. It is a support device for an anchor bolt that is connected through the adjusting means and embedded in the foundation concrete in such a manner that the upper end thread portion of the anchor bolt protrudes. As in the case of No. 3, etc., there is an advantage that the positioning adjustment can be performed without being influenced by the deformation of the reinforcing bars and the adhesion strength of the concrete to the anchor bolt can be strengthened.

  Further, in the prior invention 1, the upper side structural portion provided with the vertical position adjusting means adopts various known forms, but the lower side structural portion provided with the horizontal position adjusting means is particularly suitable for the base. A bearing plate is installed between the member and the foundation ground, the base member and the bearing plate are inserted through the upper part of the anchor screw embedded in the foundation ground, and the base nut and bearing plate are screwed into the anchor screw. Fixing on the foundation ground, screwing the adjusting screw into the adjusting screw hole provided in the base member, pressing the bearing plate with the tip of the adjusting screw, and making part of the base member up and down by adjusting the tightening of the adjusting screw ing.

  According to the first invention 1, when the adjustment force of the adjustment screw is adjusted, the pressing force against the bearing plate is varied to raise and lower a part of the base member, and the horizontal position of the upper end screw portion of the anchor bolt is adjusted via the support member. It has the advantage that it can be easily aligned with the installation position of the pillars of the building by correcting the positional deviation of the upper end screw part caused by the unevenness of the ground, etc. Applicable to exposed column base structure.

  Prior art invention 2 projects and forms a vertical reinforcing bar holding piece that fits to a horizontal reinforcing bar from the left and right sides of the board, and projects a horizontal anchor holding piece that fits to a vertical anchor bolt from the top and bottom of the board, A push screw for connecting and holding the reinforcing bar holding piece and the anchor holding piece to the reinforcing bar holding piece and the anchor holding piece in a pressed state with respect to the reinforcing bar and the anchor bolt that are fitted to the reinforcing bar holding piece and the anchor holding piece in an intersecting manner. It is a retainer of the anchor bolt screwed to.

  According to the prior invention 2, when mounting on a horizontal reinforcing bar or anchor bolt, it can be easily mounted in a fitted state without applying excessive pressing force to the reinforcing bar unit, and the horizontal position and vertical ( (Height) position can be adjusted easily and accurately, and after installation, the anchor bolt is in pressure contact with the horizontal bar or joint bar, and can be firmly connected and held without any displacement even when an external force is applied. It is possible to improve the problems of Patent Documents 1 to 3 and the like.

  However, the prior art including the prior inventions 1 and 2 still has some problems that need improvement. For example, even in the case of the holder according to the improved prior application 2, the reinforcing bars for the fabric foundation are used. Since there is no change in the structure to be supported on the base, the positioning adjustment is made without any relation to the reinforcing bars for the fabric foundation as compared with the case where the anchor bolt is supported on the foundation ground as in the support device of the first invention. However, there are still problems such as the fact that the anchor bolt cannot be made more accurately and easily, and the anchor bolt has a shorter length, so that the adhesion strength of the concrete to the anchor bolt cannot be further strengthened.

  Further, in the case of the first invention, the structure of the connecting portion by the connecting hardware for fixing the anchor bolt to the support member so that the anchor bolt can be vertically adjusted is provided in the upper side structure portion provided with the means for adjusting the vertical position of the anchor bolt. Since it is not possible to secure a sufficient space to fill the concrete placed on the upper end side of the steel, it is difficult to increase the adhesion strength of the concrete, and the anchor bolt inserted through the connecting hardware is fixed by tightening the pressure welding bolt. However, there remain problems such as that the fixing strength is not always sufficient, and that it is not possible to adopt a form in which a plurality of anchor bolts are supported by a single column member.

  Further, in the case of the prior invention 1, in the lower side structure portion provided with the means for adjusting the horizontal position of the anchor bolt, a pulling force acts on the wall anchor that fixes the bearing plate when the horizontal adjustment is performed by the horizontal adjustment screw. However, if the discarded concrete is uncured, the bearing plate or wall anchor may be lifted or pulled out, and because it is a form that supports one anchor bolt on one strut member, When multiple anchor bolts are used, multiple strut members are required, increasing the effort to perform leveling individually and arranging the rebars so that the strut members are not obstructed by the rebars. There were still issues such as being more restricted.

  Therefore, the present invention provides a support device for a foundation anchor bolt that can solve these problems of the prior art, and in particular, by supporting the anchor bolt from the foundation ground, the influence of deformation of reinforcing bars is eliminated. In addition, when a plurality of anchor bolts are connected and supported by a single column member, the horizontal position can be easily adjusted and the supporting force for the pillars can be increased. The main purpose is to improve the structure so that strong connection support can be obtained.

  The support device for anchor bolts for a foundation according to the present invention includes a lower-side structure part that erects a column member on a foundation ground via a horizontal position adjustment unit, and a vertical position adjustment unit on the upper end side of the column member. It is composed of an upper side structure portion for connecting anchor bolts for attaching pillars, and the upper side structure portion has a plurality of locking holes for mounting a plurality of anchor bolts so that the height of one column member can be adjusted. One connecting hardware provided was provided, and a connecting bolt that pressed the anchor bolt and pressed into the locking hole was provided. (Claim 1)

  Another support device for anchor bolts according to the present invention includes a lower-side structure unit that erects a column member on a foundation ground via a horizontal position adjustment unit, and a vertical position adjustment unit on the upper end side of the column member. It is composed of an upper side structure part that connects anchor bolts for attaching a pillar of a building, and the upper side structure part is provided with a plurality of anchors for mounting a plurality of anchor bolts so that the height of one pillar member can be adjusted. Provided with one connecting hardware with holes, a connecting bolt that presses the anchor bolt and presses against the locking hole, and the upper end of the column member is connected to the same shaped connecting hardware via an auxiliary connecting member Provided. (Claim 2)

  Still another anchor bolt support device according to the present invention includes a lower side structure portion that erects a column member on a foundation ground via a horizontal position adjustment unit, and a vertical position adjustment unit on the upper end side of the column member. A plurality of anchors for attaching a plurality of anchor bolts so that the height can be adjusted with respect to a single column member. In addition to providing one connecting hardware with a stop hole, providing a connecting bolt that presses the anchor bolt and presses against the locking hole, and further includes a plurality of identical sets of the lower structure part and the upper structure part. It was arranged on the foundation ground at predetermined intervals. (Claim 3)

  The connection hardware in the supporting device for the anchor bolts for foundations is formed in a U-shape in which one end side of each locking piece arranged in parallel in the vertical direction is connected by a connecting piece, and a plurality of locking pieces are provided on each locking piece. Is formed in a polygonal shape in which a connecting bolt is screwed to the connecting piece (Claim 4) and a V-groove is provided on the pressure contact surface of the locking hole. Form (Claim 5), Form in which a notch portion for mounting an anchor bolt is provided on the side surface side of the locking hole (Claim 6), welding on the outer side of one piece of a column member formed of an L-shaped angle member The form (Claim 7) made can be taken.

  Further, the lower side structural portion in the support device for the foundation anchor bolts is a first horizontal position adjusting portion that positions and adjusts the column member in either the left-right (X-axis) direction or the front-back (Y-axis) direction. And a second horizontal position adjusting unit that adjusts the position of the support member in either the left-right (X-axis) direction or the front-rear (Y-axis) direction, and the support member that is vertically supported by the base member is clockwise. Or the form (Claim 8) made to incline counterclockwise can be taken.

  According to this foundation anchor bolt support device, for example, as in claim 1, when a plurality of anchor bolts are connected and supported to one support member, the number of support members and the base member are reduced. The cost of parts can be reduced, and the horizontal position of each anchor bolt can be adjusted and adjusted at the same time in the lower structure, so the labor for installation can be reduced. Since the relative positional relationship between the plurality of anchor bolts that are also used in parallel can be kept constant, there is no need to provide a top plate on the upper end side of the anchor bolt to keep the relative positional relationship constant.

  In addition, when two sets of upper-side structures having the same shape as in claim 2 are provided symmetrically with respect to one support member, each of the four anchor bolts is attached to one support member. It is possible to connect and support, and when the horizontal position adjustment of the column member is performed by the lower side structure part, it is possible to position each anchor bolt at the same time, so a large diameter column that requires a large proof strength is supported. It is suitable for the case, especially the number of support members can be reduced to reduce the cost, the horizontal position adjustment can be facilitated via one support member, and the rebars can be arranged freely. The effect is that the degree can be increased and the top plate can be omitted, and it can be used not only for the fabric foundation but also for the exposed column base structure.

  Furthermore, when the form which arrange | positioned several sets of the same shape which made the lower side structure part and the upper side structure part one set like Claim 3 on the foundation ground at predetermined intervals, each one support | pillar member WHEREIN: This type of anchor bolt is firmly connected in a multi-point support state via a connecting hardware, and it is possible to reduce the number of strut members as well as to reduce the labor of performing horizontal adjustment individually and adjusting the level individually. The cost can be reduced by eliminating the top plate provided to restrain the upper end of the anchor bolt at a predetermined interval.

  When the connection hardware takes the form as in claim 4, each of the plurality of anchor bolts is firmly connected and supported by the upper and lower locking plates via the connection bolt, and when the form as in claim 5, the connection hardware is connected. The anchor bolt pressed by the bolt is joined to the press-contact surface of the locking hole provided with the V-groove, and is firmly connected and supported in a multi-point support state. The anchor bolt can be easily and quickly mounted from the side surface side, and when the form as in claim 7 is adopted, the adhesion of the concrete to the inside of the upper end of the column member becomes good.

  The lower-side structure portion adopts the form as in claim 8 to incline the support column member to one side and the other side along the X-axis direction and to one side and the other side along the X-axis direction. It is possible to simultaneously and accurately perform positioning adjustment for a plurality of anchor bolts that are connected and supported on the upper end side of the member, and in particular, when anchor bolts are connected and supported to the reinforcing bars of Patent Documents 1 to 3 or Prior Application Invention 2. Thus, since there is no position shift due to deformation of the reinforcing bars, accurate positioning adjustment can be performed.

  The supporting device for anchor bolts for foundation according to the present invention will be described in detail with reference to the accompanying drawings showing a preferred embodiment to which the present invention is applied. FIG. FIG. 2 is a perspective view of a foundation foundation provided with abandoned concrete and the like, and a support device 3 for anchor bolts 2 is provided, and a reinforcement for a fabric foundation 4 is arranged in a manner surrounding the support device 3. The concrete is placed in a manner in which formwork (not shown) is provided on both sides perpendicular to each other and concrete is placed, and the supporting device 3 and the fabric foundation rebar 4 except for the upper end side screw portion 2a of the anchor bolt 2 are embedded. To construct.

  The fabric foundation 1 includes a lower side structural portion 3A in which the support device 3 supports the lower end side of the column member (post member) 6 on the foundation ground, and an upper side structural unit that supports the anchor bolt 2 on the upper end side of the column member 6. 3B and the horizontal reinforcing bars 7 and 8 in which the fabric reinforcing bars 4 are arranged vertically, and the rectangular frame-shaped vertical reinforcing bars 9 and 9 arranged at predetermined intervals so as to surround each horizontal reinforcing bar ( However, the arrangement of the fabric foundation 1 and the reinforcement of the reinforcements 4 for the fabric foundation are not limited to the illustrated embodiment, and can take various forms.

  For example, as in the case illustrated in the prior application No. 2, the fabric foundation is constituted by the footing portion provided on the foundation ground and the rising portion continuously provided on the footing portion, and the horizontal reinforcing bar is provided in the footing portion of the fabric foundation. It is possible to adopt a form in which a reinforcing bar unit in which a reinforcing bar frame for footing formed by a frame and a reinforcing bar frame for rising formed by a vertical reinforcing bar frame are integrated is used as the cloth foundation reinforcing bar 4, and various other known forms.

  As shown in FIG. 2, the lower-side structural portion 3A attaches the bearing plate 10 on the foundation ground by inserting the wall anchor 11 embedded in the foundation ground through the attachment hole 10a and fixing with the attachment nut 12. At the same time, a column member 6 is mounted on the pressure bearing plate 10 via a base member 13. The base member 13 includes a first piece 13a along the X-axis direction and a second piece 13b along the Y-axis direction. The column member 6 is formed in an L shape with a first piece 6a along the X-axis direction and a second piece 6b along the Y-axis direction.

  The base member 13 serves as a connecting portion in which the bottom surface side of the first piece 13a is fixed to the bearing plate 10 by welding or other fixing means 14, and a floating hole 15 is formed in the face plate of the first piece 13a. A cutout portion 16 is provided on the bottom surface side of the piece 6b to form a gap with the pressure bearing plate 10, and a horizontal adjustment nut member 17 with respect to one direction X1 of the X axis is provided on the distal end side of the second piece 6b. They are integrally connected by welding or other fixing means, and a horizontal adjustment bolt 18 is screwed to the horizontal adjustment nut member 17.

  The strut member 6 is integrally connected to the lower end side of the first piece 6a with a horizontal adjustment nut member 19 with respect to the other direction X2 of the X axis by welding or other fixing means. The bolt 20 is screwed together, and a through-hole (not shown) is formed in the face plate of the second piece 6b, and the first piece 13a of the base member 13 is in a state where the lower end is floated from the bearing plate 10. The connecting bolt 21 is inserted in a state where the floating hole 15 is aligned with the through hole, and the connecting nut 22 is screwed to be connected to the base member 13.

  According to the lower side structural portion 3A, a screw tightening tool such as a wrench is fitted to the upper end side of the horizontal adjustment bolt 18, and is tightened to the horizontal adjustment nut member 17 so that the lower end side of the horizontal adjustment bolt 18 is on the bearing plate 10. The second piece 13b is pushed up and the first piece 13a is bent and deformed in an inclined direction in one direction X1 of the X axis, and the column member 6 connected to the first piece 13a is inclined, Accordingly, the horizontal position of the anchor bolt 2 connected to the upper end side of the column member 6 can be adjusted in one direction X1 of the X axis.

  Similarly, when the horizontal adjustment bolt 20 is tightened against the horizontal adjustment nut member 19 and the lower end side is pressed onto the bearing plate 10, the first piece 6a of the column member 6 is pushed up, and the second piece 6b becomes the base. Since the column member 6 is in an inclined state while the first piece 13a of the member 13 is bent and deformed in the other direction X2 of the X axis, the anchor bolt 2 connected to the upper end side of the column member 6 is connected to the X-axis. The horizontal position can be adjusted in the other direction X2 of the shaft.

  Further, when the connection bolt 21 is loosened with respect to the connection nut 22 and the support member 6 is gripped and pressed in one direction Y1 or the other direction Y2 of the Y axis, the play size of the loose hole 15 by the loose hole is determined. Since the strut member 6 can be tilted within the range, the anchor bolt connected to the upper end side of the strut member 6 by tightening the connecting bolt 21 to the connecting nut 22 after setting to a desired inclined position. 2, the horizontal position can be adjusted in one direction Y1 or the other direction Y2 of the Y axis.

  In the embodiment shown in FIG. 2, an L-shaped angle member that is inexpensive and has good adhesion to concrete is used for the support member 6. However, a U-shaped groove member can also be used, and a horizontal adjustment bolt. Although the heads with hexagonal hole holes are used for 18 and 20, a hexagonal head projecting in a flange shape can also be used, and the hexagonal head is pressed in contact with the bearing plate 10. The head bolt is screwed into the nut members 17 and 19 for level adjustment, and when the screwing is loosened using a screw tightening tool such as a hexagon wrench, a form in which the bolt is pressed onto the support plate 10 is used. Various forms can be taken.

  According to the lower side structure portion 3A, since the anchor bolt 2 is supported on the foundation ground via the support column member 6 with the connection hardware attached to the upper end, in the case of Patent Documents 1 to 3 and Prior Application Invention 2 In contrast to this, positioning adjustment can be performed more accurately and easily regardless of the reinforcing bars for the fabric foundation, and the anchor bolt 2 can be made longer to increase the adhesion strength of the concrete to the anchor bolt 2. It is possible to

  In addition, since the pulling force hardly acts on the wall anchor 11 that fixes the bearing plate 10 when leveling is performed, the bearing plate 10 and the wall anchor 11 are lifted or pulled out even when the discarded concrete is uncured. When there is no fear and a plurality of anchor bolts 2 are connected to and supported by a single column member 6 via the upper side structural portion 3B, the two are adjusted at the same time and adjusted individually. The labor can be reduced and the number of support members 6 is reduced, so that the arrangement of reinforcing bars is not easily restricted.

  As shown in FIG. 3, the upper side structural portion 3 </ b> B uses a connecting hardware 23 formed in a U shape by connecting the upper first locking piece 23 a and the lower second locking piece 23 b with a connecting piece 23 c. The connecting hardware 23 is fixed to the upper end side of the first piece 6a of the support member 6 by welding or other fixing means. The anchor bolts 2, 2 are attached to the first locking piece 23a and the second locking piece 23b. The locking holes 24 (24A, 24B), 25 (25, A, 25B) through which the screw is inserted are juxtaposed in a vertically communicating state, and screw holes 27, 27 are formed in the connecting piece 23c. The connecting bolts 26 and 26 are screwed together.

  The locking holes 24 and 25 are provided with a notch portion on the substantially pentagonal side surface, and the locking hole is provided with a V-groove-shaped locking portion on the pressure contact surface of the anchor bolt 2, and is engaged from the side notch portion. After the anchor bolts 2 are mounted in the stop holes 24 and 25 and the vertical position is adjusted in one direction Z1 or the other direction Z2 of the Z axis, the connecting bolt 26 is tightened as shown in FIG. When the anchor bolt 2 is pressed to the stop portion side, it can be clamped and fixed in a three-point support state by the tip of the connecting bolt 26 and the V-groove-shaped locking portion.

  According to the upper side structural portion 3B, the anchor bolt 2 can be easily mounted from the side notch portion into the locking holes 24, 25, and the anchor bolt 2 is supported at three points on the top and bottom by tightening the connecting bolt 26. Since it is possible to secure a sufficient space for filling the concrete that is firmly connected to the upper end side of the column member 6 and to fill the concrete, it is possible to increase the adhesion strength of the concrete and enhance the supporting force for the anchor bolt 2. Is possible.

  In addition, the front end side of the connection metal fitting 23 formed in a U-shape is closed to form a rectangular cylinder, or the locking holes 24 and 25 are in a rhombus or other polygonal shape that can be supported at multiple points other than a substantially pentagonal shape. It is possible to adopt a form to be used, and to adopt deformations by various forms such as a form in which the notch portions provided on the side surfaces of the locking holes 24 and 25 are eliminated and the anchor bolt 2 is inserted and attached from above. You can also.

  Next, FIG. 5 shows a lower side structure portion 30A according to another embodiment. In the case of this lower side structure portion 30A, the loose hole floating hole 15 is formed by the lower side structure portion 3A according to the embodiment of FIG. The horizontal position adjustment performed in the X-axis direction is performed by the horizontal adjustment nut members 31 and 33 and the horizontal adjustment bolts 32 and 34 in the same manner as the horizontal position adjustment in the Y-axis direction. A normal through hole is provided instead of the idle hole 15, and the other structure is the same as that of the lower side structure portion 3A.

  The lower side structure portion 30A is configured such that a horizontal adjustment nut member 31 with respect to the other direction Y2 of the Y axis is integrally connected to the distal end side of the second piece 6b of the column member 6 by welding or other fixing means. A horizontal adjustment bolt 32 is screwed to 31 and a horizontal adjustment nut member 33 with respect to one direction Y1 of the Y axis is attached to the base end side of the first piece 6a of the column member 6 by welding or other fixing means. The horizontal adjustment bolt 34 is screwed to the horizontal adjustment nut member 33.

  The horizontal adjustment portion with respect to the Y-axis direction is in a state in which the connection bolt 21 is loosened with respect to the connection nut 22, the horizontal adjustment bolt 32 is fastened to the horizontal adjustment nut member 31, and the lower end side is on the bearing plate 10. When the pressure member is brought into pressure contact, the column member 6 whose front end side of the second piece 6a is pushed up is rotated around the connecting bolt 21 in a manner inclined in the other direction Y2 of the Y axis. The horizontal position of the anchor bolt 2 connected to the Y axis can be adjusted in the other direction Y2 of the Y axis.

  Similarly, when the horizontal adjustment bolt 34 is fastened to the horizontal adjustment nut member 32 and the lower end side is pressed onto the bearing plate 10, the column member 6 whose base side of the first piece 6 a is pushed up is centered on the connection bolt 21. In addition, since it is rotated in a manner inclined in one direction Y1 of the Y axis, the horizontal position of the anchor bolt 2 connected to the upper end side of the column member 6 can be adjusted in one direction Y1 of the Y axis. However, in this embodiment, accurate position adjustment can be performed as compared with the embodiment of FIG.

  Next, FIG. 6 shows an upper side structural part 30B according to another embodiment, but the upper side structural part 3B according to the embodiment of FIG. In the case of 3B, the connecting portion 23c side of the connecting hardware 23 is connected to the support member 6, but in the case of the upper structure portion 30B, the first locking piece 35a on the upper side of the connecting hardware 23 and the second lower side of the connecting hardware 23 are connected. The distal end side of the locking piece 35b is connected to the column member 6, and the other structures are completely the same, so the same reference numerals are given and detailed description is omitted.

  In the upper side structure portion 30B, the anchor bolts 2 are mounted in the locking holes 24 and 25 of the connecting hardware 23 from the side surface where the notched portion is located, and each anchor bolt 2 and 2 is moved to a desired vertical position in the Z-axis direction. After the positioning adjustment is performed, the anchor bolts 2 and 2 are connected to the three upper and lower support positions by tightening the connection bolt 26, so that the connection is as strong as the case of the upper side structure portion 3B. Holding is performed, and the other effects are the same.

  However, in the case of the upper structure portion 3B that connects the distal end sides of the first and second locking pieces 35a and 35b due to the difference in the connection state of the connection hardware to the support member 6, the opening end portion side is closed. In the case of the upper structure portion 30B that connects the connecting portion 23c side, the cast concrete is filled into the connecting hardware 23 from the opening end side, so Adhesion performance can be improved.

  It should be noted that, compared with the illustrated embodiment in which the connecting hardware 23 is connected to the upper end outer surface side of the support member 6, it is inferior in terms of the adhesion performance of concrete, but the connecting hardware 23 with respect to the upper end inner surface side of the support member 6, that is, the V groove side. It is also possible to adopt a form in which four anchor bolts are connected by connecting three or more, for example, two sets of connecting hardware 23 to one support member 6. Is also possible.

  As described above, by adopting a configuration in which a plurality of anchor bolts 2 are connected and supported, it is possible to reduce the number of support members 6 and the base member to reduce the component cost, and each of the lower side structural portions 3A and 30A Since the horizontal position of the anchor bolt 2 can be adjusted at the same time, it is possible to reduce the labor of installation work. The connecting hardware 23 also functions as a top plate, and a plurality of the anchor bolts 2 arranged in parallel are used. Since the relative positional relationship can be kept constant, there is no need to provide a top plate on the upper end side of the anchor bolt 2 to keep the relative positional relationship constant.

  Next, FIG. 7 shows an upper-side structure portion 40B according to an embodiment using two sets of the same upper-side structure portion 3B, and an auxiliary connecting member having an L-shape on the upper end side of the other piece 6b of the column member 6 One side of 41 is connected by fixing means such as welding, and the upper side structure 3B having the same shape is attached to the other piece of the auxiliary connection member 41 by the connection hardware 23 and the connection bolt 26, and the added upper side structure 3B. Are arranged on the upper side structure portion 3B connected to the one piece 6a side of the column member 6 and the object.

  In this upper side structure portion 40B, each of the four anchor bolts 2 (2A, 2B, 2C, 2D) inserted through the locking holes 24 of the two sets of upper side structure portions 3B, 3B is individually Z When the connecting bolts 26 are fixed after the axial vertical position adjustment is performed, the four anchor bolts 2 can be connected and supported on the single support member 6, and the lower side structural portions 3 and 30A can also be used. When the horizontal position of the column member 6 is adjusted, the anchor bolts 2 can be positioned simultaneously.

  Therefore, the anchor bolt support device in which the upper side structure portion 40B and the upper side structure portions 3B and 3B are combined is suitable for supporting a large-diameter column that requires a large proof stress. The number can be reduced to reduce the cost, the horizontal position adjustment can be facilitated through one support member 6, the degree of freedom in arranging reinforcing bars is increased, and the top plate is omitted. It can be used not only for the fabric foundation but also for the exposed column base structure.

  Next, FIG. 8 is an embodiment applied to the exposed column base structure 37 represented by the base pack column base method using the four sets of the support apparatuses 3, and the support apparatus shown in FIGS. 4, four sets of support devices 39 (39A, 39B, 39C, 39D) are arranged on the support plate 38 in an opposing state, and are provided on the base portion of each support device 39 on the upper end side of the column member. The two anchor bolts 2 are connected to the X-axis direction and the Y-axis direction so that the horizontal position can be adjusted, and can be connected to the Z-axis direction so that the vertical position can be adjusted. ing.

  In this exposed type column base structure 37, two anchor bolts 2 are firmly connected to a single column member 6 in a multi-point supported state via a connecting metal 23, and the two are individually adjusted by performing horizontal adjustment simultaneously. It is possible to reduce the time and effort required for horizontal adjustment, to reduce the number of support members 6, and to reduce the cost by eliminating the top plate provided to restrain the upper end of this type of anchor bolt 2 at a predetermined interval. it can.

The principal part perspective view in the construction state which applied this invention to the fabric foundation is shown. The lower part structure part by embodiment to which this invention is applied is shown with a perspective view. The upper side structure part by embodiment which applied this invention is shown with a perspective view. The upper side structure part by embodiment to which this invention is applied is shown with a top view. The lower side structure part by other embodiment to which this invention is applied is shown with a perspective view. The upper side structure part by other embodiment to which this invention is applied is shown with a perspective view. It is the upper side structure part by other embodiment to which this invention is applied, Comprising: (a) shows the whole with a top view, (b) shows the connection of the auxiliary | assistant connection member with respect to a support | pillar member with a side view. An embodiment in which the present invention is applied to an exposed column base structure is shown in a plan view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cloth foundation 2 Anchor bolt 3,39 Support apparatus 3A, 30A Lower side structure part 3B, 30B Upper side structure part 4 Cloth foundation reinforcement 5 Foundation concrete 6 Supporting member 7,8 Horizontal reinforcement 9 Vertical reinforcement 10, 38 Bearing plate 11 Wall anchor 12 Mounting nut 13 Base member 14 Fixing means 15 Floating hole 16 Notches 17, 19, 31, 33 Horizontal adjustment nut members 18, 20, 32, 34 Horizontal adjustment bolts 21, 26 Connection bolt 22 Connection nut 23 Connection Hardware 24, 25 Locking hole 27 Screw hole 37 Exposed type column base structure

Claims (8)

  A lower side structural part that erects a column member on the foundation ground via a horizontal position adjustment unit, and an upper side structural unit that connects an anchor bolt that attaches a building column to the upper end side of the column member via a vertical position adjustment unit The upper side structure portion is provided with one connection hardware provided with a plurality of locking holes for mounting a plurality of anchor bolts so that the height can be adjusted with respect to one column member, and the anchor bolt An anchor bolt support device, characterized in that a connecting bolt that presses the pin and presses against the locking hole is provided.   A lower side structural part that erects a column member on the foundation ground via a horizontal position adjustment unit, and an upper side structural unit that connects an anchor bolt that attaches a building column to the upper end side of the column member via a vertical position adjustment unit The upper side structure portion is provided with one connection hardware provided with a plurality of locking holes for mounting a plurality of anchor bolts so that the height can be adjusted with respect to one column member, and the anchor bolt An anchor bolt support device comprising: a connecting bolt that presses against the locking hole and presses the locking hole; and a support member of the same shape is provided oppositely on the upper end side of the support member via an auxiliary connecting member.   A lower side structural part that erects a column member on the foundation ground via a horizontal position adjustment unit, and an upper side structural unit that connects an anchor bolt that attaches a building column to the upper end side of the column member via a vertical position adjustment unit The upper side structure portion is provided with one connection hardware provided with a plurality of locking holes for mounting a plurality of anchor bolts so that the height can be adjusted with respect to one column member, and the anchor bolt An anchor characterized in that a connecting bolt that presses against the locking hole is provided, and a plurality of identical sets, each having a lower structure portion and an upper structure portion, are arranged on the foundation ground at predetermined intervals. Bolt support device.   The connecting hardware is formed in a U-shape in which one end side of each locking piece arranged in parallel in the vertical direction is connected by a connecting piece, and each locking piece has a plurality of locking holes in a vertically communicating manner. The anchor bolt support device according to any one of claims 1 to 3, wherein the anchor bolt is screwed into the connecting piece.   5. The anchor bolt support device according to claim 1, wherein the connection hardware is formed in a polygonal shape in which a V groove is provided on a pressure contact surface of the locking hole.   6. The anchor bolt support device according to claim 1, wherein the connection hardware is provided with a notch portion for mounting the anchor bolt on the side surface side of the locking hole.   7. The anchor bolt support device according to any one of claims 1 to 6, wherein the connection hardware is welded to the outer side of one piece of a support member formed of an L-shaped angle member.   The lower structure portion includes a first horizontal position adjustment unit that positions and adjusts the column member in either the left-right (X-axis) direction or the front-rear (Y-axis) direction, and the column member in the left-right (X-axis) direction. Or a second horizontal position adjusting unit that adjusts the positioning in the other direction in the front-rear (Y-axis) direction, and the support member that is vertically supported by the base member is tilted clockwise or counterclockwise. The anchor bolt support device described in any one of 7 above.

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