JPH0679837U - Anchor bolt fixing device for construction - Google Patents

Abstract

(57) [Abstract] [Purpose] In the anchor bolt fixing device for supporting the column base of the structure, since the planar position adjustment, adjustment, height adjustment, and adjustment of the anchor bolt are possible, there are various types. It is an object of the present invention to provide a fixing device that can be used in a wide range with respect to the arrangement of anchor bolts. [Arrangement] An upper and a lower structure in which four pieces of support pieces provided with insertion holes for anchor bolts are arranged in a rectangular frame shape, and the arm portions of the support pieces are connected to the opposite arm portions of another support piece so as to be able to move forward and backward. It comprises a support, a plurality of anchor bolts, and a fixed body mounted on a lower support so as to be able to move up and down.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an anchor bolt fixing device that supports a column base of a structure.

[0002]

[Prior art]

 Conventionally, as a method of fixing the anchor bolts that support the column base of the structure, a method of fixing steel frames by discarding the frame and attaching the anchor bolts to the steel frame has been common. As an improvement of this method, as disclosed in Japanese Utility Model Laid-Open No. 60-58645, there is disclosed a device in which the anchor bolt itself is configured as a vertical member of a frame.

[0003]

[Problems to be solved by the device]

 In the anchor disclosed in Japanese Utility Model Laid-Open No. 60-58645 of the above-mentioned conventional method, the lower end of the anchor bolt is fixed to a fixing member fixed to the ground, and the upper end is formed with a through hole according to the position of the anchor bolt in the plate material. Insert the template provided and fix it in a sandwiched state with a pair of upper and lower nuts that are screwed to the screw at the upper end of the anchor bolt, so the front and rear, left and right planar positions of the anchor bolt can be adjusted and adjusted. Can not do at all. Similarly, in the method of assembling a steel frame as well, it is not possible to adjust the position by fixing the anchor bolt position by using the template on the upper end of the anchor bolt. However, for example, even if the number of anchor bolts used is the same, the positions and intervals of the anchor bolts are arranged in consideration of structural problems such as the supporting strength of the column base. In most cases, they are arranged along a substantially rectangular shape when seen in a plan view, but the anchors of the template that are drilled according to their position differ depending on the column base, such as the size of the spacing between the anchor bolts. The position of the through hole for fixing the bolt and the position of the screw hole of the fixing body screwed in accordance with the position also differ. Therefore, the template that fixes the upper end of the anchor bolt and the fixed body that fixes the lower end must be specially manufactured for each column base according to the position of the anchor bolt, which is not suitable for mass production, and therefore economically. High cost and disadvantage. Also, when the anchor bolts that support the column pedestals are located on the piles, when installing anchor bolt fixing devices on the piles, the pile heads project above the top surface of the discarded concrete. There are problems that it is difficult to fix it to concrete, and the accuracy of anchor bolt installation becomes poor.

[0004]

[Means for Solving the Problems]

 The present invention has been made in view of the above conventional problems, and an object thereof is to fix the position of the anchor bolt in the anchor bolt fixing device that supports the anchor bolt itself supporting the base plate of the column base to the outer frame of the frame. It can be easily adjusted and adjusted in the front-rear, left-right direction on a square, and the height of the anchor bolt can be adjusted.However, even when the anchor bolt is buried on a pile, it can be reliably mounted on the concrete. (EN) An anchor bolt fixing device that can be fixed and can accurately support a column base.

As a means thereof, four pieces of L-shaped flat support pieces each having an insertion hole for an anchor bolt in a corner are arranged in a rectangular frame shape, and another support piece whose arms are opposed to each other. The upper support that is connected to the arms of the robot so that it can move back and forth, the anchor bolts that are attached to the insertion holes, and the support pieces that are of the same type as the upper support that is attached to the bottom of the anchor bolts. It is characterized in that it is composed of a lower support member connected to each other so as to be capable of advancing and retreating, and a fixed member mounted at an appropriate position of the lower support member so as to be capable of moving upward and downward. Further, the fixed body is provided with support legs that can move up and down along the long holes at both ends, and at least two or more bolt insertion holes for attaching the lower support are drilled inside the support legs. It is characterized by being made of horizontal material that has been installed.

With the above structure, the upper support and the lower support for fixing the upper and lower ends of the anchor bolt are both formed, and the planar L-shaped support piece having the anchor bolt insertion hole at the corner is composed of four pieces. Since the arms of the support piece are formed in the shape of a rectangular frame that is connected to the arms of another support piece that are opposite to each other so that they can move forward and backward, the planar position of the anchor bolt can be adjusted to the front, rear, left and right. It is possible to freely adjust and adjust in any direction, and even if the position of the anchor bolt is arranged in a square of any size when seen in a plan view, or in a rectangular shape such as a rectangle, respond appropriately. In addition to being able to easily adjust and adjust, the height of the anchor bolt can be easily adjusted and adjusted by providing the lower support with a fixed body that can be moved up and down. In addition, the fixed body is provided with support legs that can move up and down along the long holes at both ends, and a horizontal member with a bolt insertion hole for mounting the lower support inside the support legs. Therefore, it is possible to accurately and surely arrange the anchor bolt fixing device in a state of straddling the pile head projecting above the upper surface of the discarded concrete, thereby solving the above-mentioned conventional problems.

[0007]

【Example】

 An embodiment of the present invention will be described in detail with reference to the drawings. 1 to 5, the anchor bolt fixing device of the present invention comprises four members, an upper support 100, a plurality of anchor bolts 110 ..., a lower support 120, and a fixing member 130. In the upper support 100, reference numeral 11 denotes a support piece, and through holes 14 and 15 are respectively provided at appropriate positions of arm portions 12 and 13 on two sides of a plate material having an appropriate thickness and formed in a plane L shape, and anchors are provided at corners. A bolt insertion hole 16 is formed. Further, by displaying the display lines 23 ... Outside the arm portions 12 and 13 on the two sides of the support piece 11, and by aligning the display line 23 and the end sides of the joint piece 17, the length of one side of the upper support is For example, it is engraved at regular intervals so as to be 400 mm and 450 mm. Reference numeral 17 denotes a joining piece interposed between the support pieces 11, and a size between the inner sides of the U-shaped section is formed to be slightly larger than the outer width of the arm portion, and an anchor bolt insertion hole 20 is formed at the center of the upper side. The long holes 18 and 19 are formed at both ends of the insertion hole 20. One end of the open lower surface of the U-shaped joining piece 17 is fitted to one arm portion 12 of the support piece 11, and a bolt 21 is inserted into the elongated hole 18 and the through hole 15 which are overlapped with each other. A nut 22 is screwed onto 21 and connected. In the same manner, the supporting piece 4 and the joining piece 4 are alternately connected to each other to form a rectangular frame, so that the arm portion of the supporting piece 11 is joined by adjusting the fastening of the bolt 21 and the nut 22. It is possible to move back and forth along the inner side of the piece 17 and to move back and forth. Reference numeral 110 denotes an anchor bolt, which is a deformed steel bar material in which screw portions 31 and 32 are formed at both upper and lower ends. A nut 33 is screwed in advance and has an outer dimension larger than the diameter of the insertion hole 16 on the nut 33. The washer 35 is inserted, and the insertion holes 16 ... Corresponding to them are inserted into the respective screw portions 31 ... At the upper end of the state where the washer 35 is placed, and the support piece 11 is placed on the washer 35. In this state, the washer 36 is again inserted from above, the nut 34 is screwed, and the upper support 100 is held with the support piece 11 sandwiched between the pair of upper and lower washers 35, 36 and the nuts 33, 34. Fix it. Therefore, the height of the upper support 100 can be easily adjusted and adjusted by moving the upper and lower washers 35, 36 and the nuts 33, 34 up and down together. A projecting piece 37 that fits into the insertion hole 16 of the piece 11 is formed substantially at the center, and a through hole 38 is formed in the bottom of the projecting piece 37 to the extent that the screw parts 31, 32 of the anchor bolt can be inserted. By forming the outer diameter to be larger than the outer diameter of the insertion hole 16, the screw portions 31 and 32 of the anchor bolt can be always arranged at the center of the insertion hole 16 of the support piece 11. Reference numeral 120 denotes a lower support, which is substantially the same type as the upper support 100, except that a through hole 41 is formed in a corner of the support piece 11 in parallel with the insertion hole 16 of the anchor bolt, and a nut is provided on the lower surface side. 44 is welded and fixed to the threaded portion 32 below the anchor bolt 110 by a pair of upper and lower washers 35 and 36 and nuts 33 and 34 as in the upper support 100. If necessary, the anchor bolt 110 is fixed to the insertion hole 20 formed in the upper side of the connecting piece 17 of the upper support 100 and the lower support 120 by a pair of upper and lower washers 35 and 36 and nuts 33 and 34. It is also possible to increase the number of anchor bolts installed. Reference numeral 130 denotes a fixed body, which forms a nail hole 52 and a pedestal 51 in which bolt insertion holes 53, 53 are formed at appropriate places of a plate material having an appropriate thickness, and a holding portion 55 is vertically provided on the pedestal 51, and the holding portion 55 is held. The lower end of a screw-shaped support leg 58 in which a head 57 is formed in a prismatic shape is inserted into the portion 55, and the nut is welded to the underside of the through hole 41 of each support piece 11 ... Of the lower support. The support legs 58 ... Are screwed in from above 44, and the lower ends of the support legs 58 ... In addition, notches 56, 56 are formed at desired positions on the upper surface of the pedestal 51 so that the fixed body 130 can be accurately arranged along the black line displayed on the discarded concrete.

FIGS. 6 to 7 show an embodiment of a fixed body according to claim 2, and 140 is a fixed body, and long holes are formed at both ends of the upper surface of a horizontal member 61 formed by an angle member having an appropriate length. 62, 63 are drilled, while nail holes 64 ..., Notches 65 for positioning the fixing device according to the black line displayed on the discarded concrete, and bolts insertion holes 66 are screwed to the base 67. -Shaped support legs 68 are vertically installed, inserted into the long holes 62 and 63 of the horizontal members 61, and screwed to the support legs 68 by a pair of upper and lower nuts 69 and 70 having a diameter larger than the width of the long holes. The horizontal member 61 is supported through the long holes. Further, two long holes 71, 72 for attaching the lower support 120 are formed inside the long holes 62, 63 at both ends of the horizontal member 61. FIG. 8 is a perspective view showing an assembled state of the first embodiment of the present invention using the fixed body according to claim 2, wherein the upper support 100, the plurality of anchor bolts 110 ... And the lower support. The shape of each of the lower support 120 and the fixed body 140 is the same as described above, but when the lower support body 120 and the fixed body 140 are joined, the long holes 71 formed in the horizontal member 61 of the fixed body 140, 72 and the bolts 73 through the through holes 41 (in this case, the nut is not welded to the lower surface of the through holes) formed in the support piece 11 of the lower support 120 corresponding to the elongated holes 71, 72, respectively. .., are fixed by tightening with nuts 74 ... The bolt 74 ... Each fitting the cylindrical spacer 75 ... which is longer than the length of the threaded portion.

Next, a usage example of the embodiment will be described. 9 to 12, first, the positions of the insertion holes 16 ... Of the upper support 100 are adjusted and adjusted according to the positions where the anchor bolts are arranged. Loosen the long holes 18 and 18 of the connecting piece that overlaps with the desired one side and the opposite side parallel to that side, and the bolts 21 and 21 and the nuts 22 and 22 attached to the through holes 15 and 15 of the supporting piece, respectively. Then, slide one support piece 11 and the joining piece 17 to the left and right, and interlock with the other, tightening the bolts 21 and 21 and the nuts 22 and 22 in a state of matching the gap width of one of the anchor bolts. Then, similarly, the other two parallel sides of the upper support 100 are aligned with the other spacing width of the anchor bolt and fixed. The lower support 120 is fixed in the same manner as the upper support 100 in accordance with the position of the anchor bolt, and then the upper support 100 and the lower support 120 are formed to have desired lengths. As described in the above embodiment, the upper and lower threaded portions 31 and 32 of the bolt 110 are attached by a pair of upper and lower washers 35 and 36 and nuts 33 and 34. On the other hand, each of the four fixed bodies 130 ... Is arranged on the discarded concrete 250 so that the notch 56 follows the black line previously displayed, and the nail hole 52 or the bolt inserted into the pedestal 51 is inserted. Through the holes 53, 53, bolts 220 are screwed through the insertion holes 53, 53 and fixed to an embedding tool or a multi-perforated anchor or the like which is nailed or is previously buried in concrete. Next, according to the position of the anchor bolts, the frame-shaped upper support body 100, the plurality of anchor bolts 110, ..., The lower support body 120 are discarded, and the four bodies are fixed at appropriate positions on the concrete. Into the body, the support legs 58 ... Are respectively screwed into the nuts 44 of the respective support pieces 11 ... of the lower support body 120, and the support legs 58 ... And the head 57 of the support leg 58 is locked with a tool such as a wrench and rotated to move the lower support 120 up and down to adjust the height, and the tightening bolt 54 Install by tightening and fixing and fixing the anchor bolt fixing device.

As another installation method, first, each of the four fixed bodies 130 is arranged and fixed on the discard concrete 250, and then the lower support 130 adjusted in advance according to the position of the anchor bolt. The support legs 58 are screwed into the nuts 44 and inserted into the holding portions 55 of the fixed body 130, respectively, and the head 57 of the support legs 58 is rotated by locking a tool such as a spanner to rotate the lower support body 120. Adjust the height by moving up and down. Next, the threaded portion 32 at the lower end of the anchor bolt 110 formed to a desired length in each insertion hole 16 of the lower support 120 is fixed by a pair of upper and lower washers 35, 36 and nuts 33, 34, and the upper end The upper support 100 is attached to the screw portion 31 by a pair of upper and lower washers 35 and 36 and nuts 33 and 34 in the same manner as the lower support, and an anchor bolt fixing device is installed. With this method, the outer diameter of the anchor bolt is large and the number of anchor bolts used is large.When the upper support and the lower support and a plurality of anchor bolts are formed in a frame type, the weight is heavy and bulky. It is a method that can be installed reasonably by adopting it when it is extremely difficult for a person to carry it to a predetermined position. After installing the anchor bolt fixing device, perform bar arrangement and formwork work, after placing concrete up to an appropriate height when placing concrete, remove the upper support 100 from the anchor bolt 110, and after curing the concrete, The base plate 210 of the column base 230 is mounted on the upper end screw part 31 of the anchor bolt 110 protruding upward from the concrete surface, and the nut 220 is tacked and fixed to support the column base 230. .

FIG. 13 and FIG. 14 show an example of use of the anchor bolt fixing device using the fixed body according to claim 2. First, the lower end of one support leg 68 of the fixed body 140. The notches 65 engraved on the pedestal 67 provided on the base are respectively nailed or bolted to the embedding tool or the multi-perforation anchor 270 embedded in the discarded concrete along each black line 260 shown on the discarded concrete 250. The other support leg 68 is similarly fixed to a desired position by tacking with 220, and the horizontal member 61 is attached to the support legs 68 and 68, and the long holes 62 and 63 formed at both ends are provided. The position and the height of the horizontal member 61 are adjusted by inserting and inserting the nuts 69 and 70 in the left and right directions or the pair of upper and lower nuts 69 and 70 along the elongated holes 62 and 63. Similarly, another fixed body 140 is arranged at a desired position, and two horizontal members 140, 140 are arranged in a state of being installed in parallel on the pile 280. Next, on the respective horizontal members 61, 61 of the pair of fixed bodies 140, 140, the upper support 100 and a few anchor bolts 110, which are previously formed in a frame shape of a desired size by the method described above. After mounting the lower support 120 in a mounted state, the anchor bolt fixing device is installed. After that, in the same manner as described above, the bar arrangement and the formwork work are performed, and after the concrete is placed. , Install and support a column base on each anchor bolt. Further, also in the anchor bolt fixing device using this fixing body 140, another installation method described above (method of forming the fixing device in the order of the fixing body, the lower support, several anchor bolts, and the upper support) But it can be formed.

Next, another embodiment of the present invention will be described. FIG. 15 is a perspective view showing an upper support of a second embodiment of the present invention. An anchor bolt insertion hole 200 is formed at a corner and both arms 201 and 202 are appropriately raised from the corner. It is bent and bent outward again horizontally, and it is formed into a plane L-shape with two sides of support pieces 205, 205 in which long holes 203, 204 are bored on the horizontal sides, respectively, and it is formed in a corner. Anchor bolt insertion hole 206 and two arms 207, 208 having long holes 209, 210 are formed in a rectangular frame shape without interposing another joining piece by two sides of supporting pieces 211, 211. , The arm portions 201 and 202 of the support piece 205 and the arm portions 207 and 208 of the support piece 211 are overlapped with each other, and the bolt 212 is inserted into the elongated holes 203, 204, 209 and 210 that are overlapped with each other. Screw washer 214 and nut 213 onto The number of anchor bolts used is limited to four by attaching the anchor bolts to the screw parts at the upper and lower ends, and forming the lower support in the same way. It is possible to obtain the effects that it is simple, the weight can be reduced, and the cost is low.

FIG. 16 to FIG. 18 are perspective views showing a fixing body of a third embodiment of the present invention, and like the fixing body 130 of the first embodiment, nails are appropriately placed at appropriate positions on a plate material. A hole 300 and a bolt insertion hole 301 are drilled, and a screw-shaped support leg 304 is hung vertically on a pedestal 303 in which a notch 302 that matches the black line displayed on the discarded concrete is engraved. The support leg 304 can be moved back and forth, and has a side opposite to the diameter of the through hole 41 formed in parallel with the insertion hole 16 of the anchor bolt at the corner of each support piece 11 of the lower support 120. The adjustment nut 305 is screwed, and the tightening nut 306 and the washer 307 are also screwed. As an example of use, four fixed bodies 150 ... Notch on the black line 260 A nail hole 300 or a bolt insertion hole 301 which is arranged on the pedestal 303 and is arranged along the portion 302 is nailed or inserted into an embedding tool or a multi-perforation anchor which is previously buried in concrete. A bolt is screwed and fixed through the hole 301. Next, the support pieces 11 ... Are screwed onto the support legs 304 of the four fixed bodies 150, and are attached to the upper surfaces of the adjustment nuts 305 whose vertical height positions are adjusted. Of the through holes 41 ... Are respectively inserted into the corresponding support legs 304 ..., and the upper support 100 and several anchor bolts 110 and the lower support 120 which are previously formed in a frame shape of a desired size are formed. The fixing device for the anchor bolt is installed by mounting the fixing bolts on a fixed state. However, by making the outer diameter of each through hole 41 larger than the outer diameter of the support leg 304, the four fixing bodies 150 and the frame are fixed. The upper support 100 formed in a mold, several anchor bolts 110, and the lower support 120 enable planar position adjustment. For example, mounting positions of four fixed bodies and black line error Adjust the It is obtained to be able to install the fixing device Boruto. Further, using this fixing body 150, another installation method described in the usage example of the embodiment (a method of forming a fixing device in the order of fixing body, lower support, several anchor bolts, and upper support) But it can be formed.

[0014]

As described in detail above, according to the anchoring bolt fixing device for construction of the present invention, the upper support and the lower support for fixing the upper and lower ends of the anchor bolt have their arms left and right. By arranging it in the form of a rectangular frame that is slidably connected to, the position of the anchor bolt can be adjusted forward and backward, left and right, and adjusted. For this reason, there is no need to specially manufacture each column base in accordance with the position of the anchor bolt, and since it can be used in a wide range with respect to the form in which the anchor bolt is arranged, mass production becomes possible. It can be provided to users at low cost, which is very economically advantageous. Also in terms of construction, the operator can freely select the method of assembly and installation work according to the size and weight of the fixing device, improving workability and supporting the column base with high accuracy. it can. Furthermore, by forming the fixed body from a horizontal member provided with support legs that can move up and down, it is possible to arrange the anchor bolt fixing device with high accuracy and certainty even when the anchor bolt fixing device is installed on the pile. You can get the anchor bolt fixing device.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a side view showing a first embodiment of the present invention.

FIG. 3 is a perspective view showing an upper support.

FIG. 4 is a perspective view showing a washer.

FIG. 5 is a cross-sectional view showing a state in which an anchor bolt is attached to the upper support.

FIG. 6 is a perspective view showing a fixed body according to a second aspect.

FIG. 7 is a side view showing the fixed body according to the second aspect.

FIG. 8 is a perspective view showing an assembled state of a first embodiment of the present invention using the fixed body according to the second aspect.

FIG. 9 is a perspective view showing a sliding state of an upper support.

FIG. 10 is a perspective view showing an assembled state of the first embodiment.

FIG. 11 is a perspective view showing a usage state of the first embodiment of the present invention.

FIG. 12 is a perspective view showing a usage state of the first embodiment of the present invention.

FIG. 13 is a perspective view showing a usage state of a first embodiment of the present invention using the fixed body according to the second aspect.

FIG. 14 is a partial cross-sectional view showing a usage state of the first embodiment of the present invention using the fixed body according to the second aspect.

FIG. 15 is a perspective view showing an upper support according to a second embodiment of the present invention.

FIG. 16 is a side view showing a fixed body according to a third embodiment of the present invention.

FIG. 17 is a perspective view showing a fixed body according to a third embodiment of the present invention.

FIG. 18 is a perspective view showing a third embodiment of the present invention.

[Explanation of symbols]

 100 Upper support 110 Anchor bolt 120 Lower support 130 Fixed body 200 Beam reinforcement 210 Base plate 220 Bolt 230 Pillar 240 Mortar 250 Discarded concrete 260 Black wire 270 Anchor 280 Pile 290 Reinforcing reinforcing bar

Claims (2)

[Scope of utility model registration request] 1. A flat L-shaped support piece having four insertion holes for anchor bolts at its corners is arranged in a rectangular frame shape.
An upper support body in which the arm portions of the support pieces are connected to the arm portions of another support piece opposite to each other so as to be able to advance and retreat, a plurality of anchor bolts attached to each of the insertion holes, and attached to the lower portions of the plurality of anchor bolts. A construction characterized in that it comprises a lower support having substantially the same shape as the upper support, in which the respective support pieces are connected to each other so as to be capable of advancing and retreating, and a fixed body attached to the lower support so as to be capable of advancing and retreating vertically. Anchor bolt fixing device. 2. The fixing body is provided with supporting legs that can move up and down along the long holes at both ends, and at least two or more bolt insertion holes for attaching the lower supporting body are provided inside the supporting legs. The anchoring device for construction according to claim 1, characterized in that it comprises a perforated horizontal member.