JP3647841B2 - Joining structure and joining method of pile and building - Google Patents

Joining structure and joining method of pile and building Download PDF

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Publication number
JP3647841B2
JP3647841B2 JP2002349480A JP2002349480A JP3647841B2 JP 3647841 B2 JP3647841 B2 JP 3647841B2 JP 2002349480 A JP2002349480 A JP 2002349480A JP 2002349480 A JP2002349480 A JP 2002349480A JP 3647841 B2 JP3647841 B2 JP 3647841B2
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Prior art keywords
pile
plate
building
pile head
bolt
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JP2004183266A (en
Inventor
勝之 吉田
宏一 吉田
耕之 吉田
勝彦 大迫
清澄 小井戸
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千代田工営株式会社
東日本旅客鉄道株式会社
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Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a joining structure and a joining method for joining a pile and a building (column base of a building) on the pile, which can significantly improve the construction efficiency and enable construction in a short time.
[0002]
[Prior art]
In general, a concrete gravity method (foundation method using cast-in-place reinforced concrete) is employed as a foundation method for buildings. According to this concrete gravity method, first, a hole having a predetermined depth is excavated at a place where a foundation is to be installed, then reinforcement is arranged, a connecting bolt is installed, and a formwork is installed. It is common to place concrete in the formwork, harden the concrete, remove the formwork, build the steel frame (joining the foundation and the pillar of the building), and backfill the excavated holes. Is.
[0003]
In the above construction method, there is a lot of work at the site, and the basic construction method in a crowded place such as a platform with many restrictions on the construction time zone, the construction time is long, and work at night without passengers is forced, etc. The issue is pointed out.
[0004]
As one of the solutions for solving such problems, a construction method using a pile used as a foundation in construction on soft ground has been studied. Pile is generally manufactured in advance in a factory, etc., transported to the site and driven into or embedded in the ground. This pile (for example, steel pipe pile, H steel pile, reinforced concrete (RC) pile, etc.) By using as a basis, it is possible to reduce the work on site as much as possible and to greatly shorten the construction time.
[0005]
When using a steel pipe pile as a pile, as a method of joining the pile head and the building, for example, the pile head is larger than the outer diameter dimension of the other part of the pile and is the base of the structure. An accommodation cylinder part which is a structure base connection part having a dimension larger than the dimension is provided, and after embedding the steel pipe pile in the ground, an anchor reinforcing bar and a plurality of strip reinforcing bars surrounding the anchor reinforcement are arranged in the accommodation cylinder part. In addition, there has been proposed a method in which an inside-filled concrete is placed and cured, and a pillar member of a building is constructed on the inside-filled concrete (see Patent Document 1).
[0006]
Further, as another joining structure, for example, a pile body excavation hole for a pile body portion and a pile head excavation hole for a pile head having an inner diameter larger than the inner diameter of the excavation hole are excavated, and then, A steel pipe pile is built in such a way that its upper end surface almost coincides with the foundation bottom of the foundation structure, and a cylindrical steel frame surrounding the pile head is placed in the pile head excavation hole, and then the excavation hole and steel pipe pile are arranged. There has also been proposed one in which concrete is placed (see Patent Document 2).
[0007]
[Patent Document 1]
JP 2002-266346 A (FIGS. 1 and 2)
[0008]
[Patent Document 2]
Japanese Patent Laid-Open No. 06-257141 (FIG. 6)
[0009]
[Problems to be solved by the invention]
However, in any of the joining methods, it is necessary to take a deep hole and a large opening area in order to install a form for reinforced concrete. For this reason, the working time zone is limited even if not as much as in the case of the concrete gravity method.
[0010]
In order to be able to work even during the time when passengers get on and off (in the daytime, etc.), it is considered to directly join the building joint (column member) to the pile head without using reinforced concrete. There are such problems, and it has not been put into practical use.
[0011]
That is, many of the surface grounds have obstacles such as rubble previously embedded in the ground, and when laying piles, these obstacles get in the way and the pile legs are buried vertically at the desired position accurately. It is difficult to do, and there is a problem that a misalignment between the pile head and the joint (column member), an inclination of the pile, and the like cannot be avoided.
[0012]
Therefore, as a joint structure for directly joining the pile head and the joint part (column member) of the building, it is necessary to be able to join without any trouble even if there is misalignment or inclination of the pile. There is. Specifically, it is necessary to satisfy the following six requests.
(1) Even if the pile is buried at an angle of about 1 degree from the vertical line due to an underground obstacle, it can be joined to the joint (column member) of the building without any trouble.
(2) Even if the construction core of the pile is displaced by about 30 mm from the core of the column base due to an underground obstacle, it should be possible to cope with this.
(3) There is no problem even if the pile head is cut at a depth of about 50 cm in the ground according to the change of the ground support layer.
(4) The base plate is welded and fixed to the joint (column member) in advance at the factory, and the installation position of the joint (column member) is set in advance. Make it possible.
(5) Adjust the vertical position (height position) and level of the joint (column member) so that it can be attached.
(6) An adjustment mechanism for easily standing the joint (column member) vertically is provided.
[0013]
The present invention has been made in view of the above circumstances, and provides a joining structure and joining method for joining a pile and a column base of a building thereon, which satisfies the above six requirements and shortens the construction time. The purpose is to do.
[0014]
[Means for Solving the Problems]
The joint structure of the present invention that achieves the above object is a long hole extending from the center to the outer diameter of the pile, which is attached to the pile head of the pile, with the joint structure of the pile and the building installed on the pile. A disc-shaped adjustment plate that is inserted into the elongated hole, and is connected to the pile head plate by a connecting bolt and a pile head plate that is fixed to the adjustment plate by the center bolt, a round hole is opened. A base plate to which a building column base is attached, and a center bolt is inserted into the long hole of the adjustment plate so that the position between the building column base and the pile is between Misalignment amount and misalignment direction The adjustment plate is rotated and positioned with respect to the pile head according to the position, and the center bolt is installed so that it is positioned at the center of the column base planned for the building, and then the adjustment plate is welded and fixed to the pile head. Insert a pile head plate with a round hole in the center bolt and fix it. Place the base plate with the column base on the center bolt in the specified direction, tighten the connecting bolt, and make the column base vertical. It is characterized by being tightened and adjusted.
[0015]
Moreover, the joining method of the present invention that achieves the above object is a joining method between a pile and a building installed on the pile, and after the pile is buried in the ground, a predetermined area around the pile head of the pile is provided. Drilling a hole with a depth of 5 mm, cutting the pile head to a predetermined length so that the joint between the pile and the building is not exposed to the ground surface, and a length extending from the center to the pile head in the outer diameter direction A step of fixing an adjustment plate made of a disk-shaped plate having a hole, and the center bolt is fixed to the lower end of the column base of the building with the center bolt inserted and held in the elongated hole. Between the position where the pile is buried and the planned installation position of the column base Misalignment amount and misalignment direction The adjustment plate is rotated with respect to the pile head and positioned, and then the process of fixing the adjustment plate to the pile head and the center bolt inserted through the long hole of the adjustment plate are The process of fixing the adjustment plate and pile head plate with the center bolt through the hole and fixing the height adjustment bag nut to the upper screw of the center bolt to adjust the installation height of the base plate. Place the base plate on top, tighten the connection bolts that connect the pile head plate and the base plate, adjust the column base vertically to the planned installation position, pour concrete into the excavation hole, And a step of embedding an adjustment plate, a pile head plate, a base plate, and a column base lower end.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
1 to 4 show a first embodiment of the joining structure of the present invention. FIG. 1 is a partially cutaway side view, FIG. 2 is a plan view of a base plate of the joining structure of FIG. 1, and FIG. FIG. 4 is a partially cutaway side view of the joining structure of FIG. 1 in a state where the pile is embedded without causing misalignment in the joining structure of FIG.
[0017]
One embodiment of the joining structure of this embodiment will be described with reference to FIG. The present embodiment is applied to a joint structure between a steel pipe pile 10 embedded in a platform and a column base 20 of a passenger occupant, which is a building constructed on the platform. A square plate-shaped base plate 30 fixed by welding, a disk-shaped adjustment plate 40 disposed and fixed in the pile head 12 of the steel pipe pile 10, and disposed and fixed between the base plate 30 and the adjustment plate 40. The pile head plate 50 having the same shape and size as the base plate 30 and a headed center bolt 60 inserted into the long hole 41 of the adjustment plate 40 are provided.
[0018]
The adjustment plate 40 embeds the steel pipe pile 10 in the ground, cuts the upper portion of the pile head 12 into a predetermined length (for example, about 50 cm), and then puts the pile head 12 on the pile head 12. It is inserted and fixed in a horizontal state so that the end surface and the surface of the adjustment plate 40 are substantially flush with each other (fixed in such a manner that the upper end opening surface of the pile head 12 is covered with the adjustment plate 40 The outer diameter is set to be slightly smaller than the inner diameter of the pile head 12. A support block (not shown) for supporting the adjustment plate 40 so as to be in the same plane position as the upper end surface of the pile head 12 before the adjustment plate 40 is inserted into the pile head 12 after cutting. ) Is fixed by welding or the like. The adjustment plate 40 is supported by the support block and is rotatably accommodated in the pile head 12 in a horizontal state, and is fixed by welding or the like after positioning.
[0019]
As shown in FIG. 3, the adjustment plate 40 is formed with the above-described long hole 41 extending in the outer diameter direction from the center portion. The long hole 41 is set so that its width is slightly larger than the outer diameter of the center bolt 60, and its length can correspond to the maximum misalignment (for example, about 30 mm) between the steel pipe pile 10 and the column base 20. The center bolt 60 can move smoothly along the long hole 41.
[0020]
A cover cap (not shown) for holding the center bolt 60 is disposed on the back surface of the adjustment plate 40 and the like. This cover cap prevents the central bolt 60 from falling out of the pile head 12 from the long hole 41 (does not fall) and prevents co-rotation.
[0021]
After the adjustment plate 40 is inserted into the pile head 12, the steel pipe pile 10 and the column base 20 are connected to each other within the pile head 12. Center misalignment amount t (pile eccentricity t in FIG. 1) and misalignment direction In other words, after being positioned so that the end (upper end) of the center bolt 60 on the base plate 30 side is positioned at the center of the back surface of the base plate 30 (center of the column base 20), welding is performed. Is fixed in the pile head 12.
[0022]
The pile head plate 50 is formed with a round hole 51 through which the central bolt 60 is inserted at a position matched with the position of the central bolt 60 in the long hole 41 after the adjustment plate 40 is fixed in the pile head 12. .
[0023]
The round hole 51 is formed at a position facing the center bolt 60 of the pile head plate 50 when the pile head plate 50 is arranged at a preset position (position where the column base 20 is installed). Therefore, when the foundation pile 10 (pile head portion 12) is misaligned, the round hole 51 is formed not at the center portion of the pile head plate 50 but at a position shifted from the center portion. When the pile head 12 does not cause core misalignment, the round hole 51 is formed at the center of the pile head plate 50. Pile head 12 Misalignment amount t and misalignment direction Is determined after the foundation pile 10 is buried and cannot be predicted in advance, so the round hole 51 cannot be formed (punched) in the pile head plate 50 in advance, and the foundation pile 10 is buried and adjusted. It must be after positioning and fixing the plate 40, for example, formed (perforated) at the construction site.
[0024]
At the four corners of the pile head plate 50, connection holes 54 for connecting the pile head plate 50 and the base plate 30 via the connection bolts 70 are respectively formed in advance. A connection nut 55 into which the connection bolt 70 is screwed is fixed to the connection hole 54 on the back surface of the pile head plate 50 by welding.
[0025]
The base plate 30 is placed on the center bolt 60 at the center of the back surface. In addition, a connection hole 32 having the same diameter as the connection hole 54 is formed at each location of the base plate 30 corresponding to the connection hole 54 of the pile head plate 50.
[0026]
A connection bolt 70 is inserted into the connection hole 32 of the base plate 30 and the connection hole 54 of the pile head plate 50, and a connection nut 55 and connection / adjustment nuts 33, 34, 35 are screwed into the connection bolt 70. Thus, the base plate 30 and the pile head plate 50 are connected to each other. The base plate 30 can be horizontally adjusted by rotating the connecting / adjusting nuts 33, 34, 35 to move the base plate 30 up and down with respect to the pile head plate 50 (the column base on the base plate 30). 20 can be adjusted to stand vertically).
[0027]
For example, the connection / adjustment nuts 34, 35 on the front surface side of the base plate 30 are rotated in the direction of moving upward along the connection bolt 70, while the connection / adjustment nut nut 33 on the back surface side of the base plate 30 is also turned into the connection bolt 70. The portion of the base plate 30 in contact with the connection / adjustment nut 33 is lifted by turning the head plate in the direction of moving upward along the base plate 30. On the other hand, while the connection / adjustment nut 33 on the back surface side of the base plate 30 is rotated in the direction of moving downward along the connection bolt 70, the connection / adjustment nut nuts 34, 35 on the surface side of the base plate 30 are also connected to the connection bolt. The base plate 30 in contact with the connection / adjustment nut 34 is moved downward by rotating it so as to rotate downward along the direction 70. In this way, the horizontal adjustment of the base plate 30 can be performed (adjustment can be made so that the column base 20 on the base plate 30 stands vertically).
[0028]
The steel pipe pile 10 to be joined to the column base 20 is not shown in detail, but, for example, a plurality of excavating blades fixed to the opening end face of the tip (lower end) of the steel pipe pile body 11 by welding or the like. It is a basic foundation pile, and is constructed by fixing a spiral blade to the outer peripheral surface of the pile body 11 by welding or the like.
[0029]
When the steel pipe pile 10 is embedded in the ground without causing core misalignment, the center bolt 60 is inserted into the long hole 41 at the center of the adjustment plate 40 as shown in FIG.
[0030]
5 to 7 show a second embodiment of the joining structure of the present invention.
In this second embodiment, a plurality of fixing bolts 80 are arranged circumferentially around the center bolt 60 in order to make the connection between the adjustment plate 40 and the pile head plate 50 strong (rigid). 40 and the pile head plate 50 are connected (joined) to each other, and the height adjusting bag nut 31 is screwed to the upper screw of the center bolt 60, and the height adjusting bag nut 31 is rotated and adjusted. The base plate 30 (column base 20) is different from the first embodiment in that the installation height can be adjusted and the number of connecting bolts 70 is increased (a total of eight connecting bolts 70). Is the same as in the first embodiment.
[0031]
8 to 9 show a third embodiment of the joining structure of the present invention.
In the third embodiment, in order to make the connection between the adjustment plate 40 and the pile head plate 50 strong (rigid), the ring-shaped plate 13 is welded to the outer peripheral surface of the pile head 12 that is the upper part of the steel pipe pile 10. A plurality of fixing bolts 80 a are arranged between the ring-shaped plate 13 and the pile head plate 50 to connect (adjust) the adjustment plate 40 and the pile head plate 50 to each other; The height adjustment bag nut 31 is screwed onto the upper screw, and the height adjustment bag nut 31 is rotated to adjust the installation height of the base plate 30 (column base 20). However, the other parts are the same as those of the first embodiment.
[0032]
In the second embodiment and the third embodiment described above, a cover cap (not shown) for holding the fixing bolts 80 and 80a is disposed as in the case of the center bolt 60. This cover cap prevents the fixing bolts 80 and 80a from dropping and prevents them from rotating together.
[0033]
Next, an embodiment of the bonding method of the present invention will be described with reference to FIGS.
In the present embodiment, a method of joining the pile head 12 and the column base 20 of the steel pipe pile 10 using the joining structure of the second embodiment will be described.
[0034]
First, the foundation pile 10 is embedded to a desired depth on the platform to a predetermined depth while being rotated by a rotation propulsion device such as an auger. Next, the soil around the pile head 12 of the foundation pile 10 is excavated to dig a hole 90, and the upper portion of the pile head 12 is cut by about 50 cm. As a result, the pile head 12 is positioned near the bottom of the excavation hole 90. This is to prevent the base plate 30, the pile head plate 50, and the adjustment plate 40, which are the above-described joint structure, from being contained in the hole 90 (see FIG. 1) and exposed to the outside.
[0035]
Next, the adjustment plate 40 is inserted into the pile head 12 in a state where the center bolt 60 is inserted into the long hole 41 and held so as not to drop. The fixing bolt 80 is also held so as not to drop off.
[0036]
When the foundation pile 10 is buried and deviated from a preset position (position where the column base 20 is installed), or when the pile head 12 is inclined by about 1 °, that is, when the core misalignment occurs, Misalignment amount and misalignment direction The center plate 60 is moved along the long hole 41 so that the adjustment plate 30 is rotated in the pile head 12 to be positioned, and the upper end of the center bolt 60 is positioned at the center of the base plate 30. (The center bolt 60 is eccentric with respect to the pile head 12 in accordance with the misalignment amount), and the adjustment plate 40 is fixed in the pile head 12 by welding.
[0037]
Next, a round hole 51 is drilled in the pile head plate 50 at a position corresponding to the center bolt 60, and a hole 52 for attaching a fixing bolt 80 on a circumference having a predetermined radius centered on the center bolt (see FIG. 5). Perforate. These drilling operations are performed at the construction site. Since the pile head plate 50 is arranged at a preset position (position where the column base 20 is installed) similarly to the base plate 30, when the pile head 12 is misaligned, the pile head plate 50 is disengaged from the center. The round hole 51 of the central bolt 60 is drilled at the spot. If the pile head 12 is not misaligned, the round hole 51 is formed at the center of the pile head plate 50.
[0038]
Next, the center bolt 60 is inserted into the round hole 51, and the nut 53 is screwed into the center bolt 60 to fix the adjustment plate 40 and the pile head plate 50 to each other. Further, the fixing bolt 80 is inserted into the hole 52, and a fixing nut is screwed into the fixing bolt 80, thereby joining the pile head plate 50 and the adjusting plate 40 to a rigid body. Further, the connecting bolt 70 is attached to the peripheral edge portion of the pile head plate 50.
[0039]
Next, the height adjustment bag nut 31 is screwed onto the upper screw of the center bolt 60, and the height adjustment bag nut 31 is rotated to adjust the height of the base plate 30, and then the height adjustment bag nut 31 is moved on. The base plate 30 is placed on the surface. Further, the base plate 30 is connected to the pile head plate 50 by the connection bolt 70, and the connection / adjustment nuts 33, 34, and 35 screwed to the connection bolt 70 are rotated to move the base plate 30 up and down with respect to the pile head plate 50. The base plate 30 is horizontally adjusted by moving in the direction. As a result, the column base 20 is erected vertically.
[0040]
Thereafter, the concrete 100 is poured into the excavation hole 90, and the pile head 12, the pile head plate 50, the base plate 30, the lower ends of the column bases 20, and the like are embedded.
According to the joining structure and joining method of the present embodiment, the hole 90 excavated in the platform is shallow (for example, about 60 cm) and the opening area is small (for example, about 80 cm width × 80 cm width). Construction is possible at any time, and there are no restrictions on construction time zones.
[0041]
Further, the adjustment plate 40 is formed with a long hole 41 capable of coping with a core misalignment of 30 mm at maximum, Misalignment amount t and misalignment direction Therefore, even if the foundation pile 10 is removed from the predetermined position and buried, the adjustment plate 40 is attached to the pile head. This can be dealt with by a simple operation of rotating within the section 12.
[0042]
Further, the base plate 30 and the pile head plate 50 are connected via a plurality of connecting bolts 70, and the connecting / adjusting nuts 33, 34, and 35 are screwed to the connecting bolts 70, so that they are in any position. By rotating the connection / adjustment nuts 33, 34, and 35 screwed into a connection bolt 70, the base plate 30 can be horizontally adjusted, whereby the pile head 12 is inclined by about 1 °. Even if it is buried, the level of the lower end of the column base 20 (the vertical degree of the column base 20) can be easily adjusted.
[0043]
Further, non-shrink mortar can be poured between the pile head plate 50 and the base plate 30 and hardened. In this case, the connection bolt 70, the connection / adjustment nut 33, the nut 53, the center bolt 60, etc. are prevented from loosening. The
[0044]
Moreover, although the case where what was comprised by fixing a helical wing | blade to the outer peripheral surface of the pile main body 11 by welding etc. was used as the foundation pile 10, it is not limited to this.
Moreover, although the case where the auger combined use construction method was employ | adopted was shown as a method of embedding the foundation pile 10, it is not limited to this, The Nakabori construction method, the rotary embedding method with a wing | blade, a cement milk injection construction method, and a press-fit construction method are employ | adopted. It is possible.
[0045]
Furthermore, although the case where this invention was applied to the joining structure and joining method of the foundation pile 10 and the column base 20 of a passenger shed was shown, in the joining structure and joining method of the foundation pile 10 and the foundation horizontal beam of a building is shown. The present invention can also be applied.
[0046]
For example, as shown in FIGS. 12 to 13, the center bolt 60 is inserted into the long hole 41 of the adjustment plate 40, For the joint position of the foundation foundation horizontal beam 110 Core misalignment of foundation pile 10 as well as The adjustment plate 40 is horizontally rotated in accordance with the misalignment direction, and the joining position of the foundation horizontal beam 110 of the building Align the center bolt 60 with the center of A pile head plate 50 welded in the pile head 12, with a round hole 51 formed in the center bolt 60 is inserted and fixed, and the foundation horizontal beam 110 is placed on the center bolt 60. The head plate 50 may be fixed by the connecting bolt 70.
[0047]
In addition, as shown in FIG. 14, in the joint structure between the foundation pile 10 and the foundation horizontal beam of the building shown in FIGS. A laminated rubber 120 which is a laminated vibration preventing body may be disposed between the two.
[0048]
Further, as shown in FIG. 15, in the joint structure of the foundation pile 10 and the foundation horizontal beam of the building shown in FIGS. 12 to 13, there is no contraction between the joint position of the pile head plate 50 and the foundation horizontal beam 110. The mortar 121 may be filled.
[0049]
【The invention's effect】
As described above, according to the joint structure between a pile and a building according to the present invention, there is a long hole that is attached to the pile head and extends from the center to the outer diameter of the pile, and a central bolt is installed in the long hole. A disc-shaped adjustment plate to be inserted, a pile head plate that is fixed by a center bolt, a round hole is drilled, and a base plate that is connected to the pile head plate by a center bolt and attached to a building column base Even if the construction core of the pile is displaced from the core of the column due to an underground obstacle, it is possible to cope with this, and it is possible to directly connect the pile and the structure via the central bolt without using reinforced concrete. It is possible to achieve the effect that the construction time can be greatly shortened.
[0050]
In addition, according to the joint structure between another pile of the present invention and the building, the installation height of the base plate to which the column base is attached can be adjusted by rotating the height adjusting bag nut attached to the upper screw of the center bolt. The column base is adjusted and fixed vertically by tightening and adjusting the center bolt that connects the base plate and the pile head plate mounted on the top of the height adjustment bag nut. Even if the pile is buried at an angle of about 1 degree from the vertical line, the vertical position (height position) of the bottom of the column base of the building can be adjusted and attached. It can be easily erected vertically, so that it is possible to join the pile and the joint directly without using reinforced concrete, and it is possible to significantly shorten the construction time. I can do it.
[0051]
Moreover, according to the joining method of a pile and a pillar of this invention, since the said joining structure is utilized, it is possible to join the junction part and pile of a building directly, and there can exist the effect mentioned above. Furthermore, in the process of cutting the pile head to a predetermined length, the opening area of the hole around the pile head to be excavated is relatively small, does not obstruct traffic, and the construction time zone is less busy at night etc. There is an effect such as not being restricted by the time zone.
[Brief description of the drawings]
FIG. 1 is a partially cutaway side view showing a first embodiment of a joining structure according to the present invention.
FIG. 2 is a plan view of a base plate of the joint structure of FIG.
3 is a plan view of an adjustment plate having the joint structure of FIG. 1. FIG.
4 is a partially cutaway side view showing a state in which a pile is embedded without causing misalignment in the joint structure of FIG. 1; FIG.
FIG. 5 is a partially cutaway side view showing a first embodiment of the joining structure of the present invention.
6 is a plan view of an adjustment plate having the joint structure of FIG. 5;
7 is a plan view of an adjustment plate having the joint structure of FIG.
FIG. 8 is a partially cutaway side view showing a third embodiment of the joining structure of the present invention.
9 is a plan view of a ring-shaped plate having the joint structure of FIG.
FIG. 10 is a partially cutaway side view showing a first embodiment of the joining method of the present invention.
11 is a partially cutaway side view when the joining method of FIG. 10 is completed.
FIG. 12 is a partially omitted front view in the case where the joint structure of the present invention is applied to the joint between a foundation pile and a foundation horizontal beam of a building.
13 is a side view in which a part of FIG. 12 is omitted.
14 is a side view of an embodiment in which the joint structure of FIG. 12 is an earthquake resistant structure.
15 is a side view of an embodiment in which non-shrink mortar is filled between the pile head plate and the joint position of the foundation horizontal beam in the joint structure of FIG.
[Explanation of symbols]
10 Foundation pile 18 Pile head
20 Column base 30 Base plate
33, 34, 35 Connection / adjustment nut 40 Adjustment plate
41 Long hole 50 Pile head plate
51 Round hole 60 Center bolt 70 Connection bolt 80 Fixing bolt
90 Drilling hole 100 Concrete
110 Foundation horizontal beam 120 Laminated rubber
121 Non-shrink mortar

Claims (13)

  1. A joining structure between a pile and a building for joining the pile and a building installed on the pile,
    A disk-shaped adjustment plate attached to the pile head of the pile and having a long hole extending from the center to the outer diameter of the pile;
    A central bolt inserted into the elongated hole of the adjustment plate;
    A pile head plate fixed to the adjustment plate by the center bolt and having a round hole formed therein,
    A base plate to which the pillars of the building are attached;
    A connection bolt for connecting the base plate to the pile head plate;
    The adjustment plate is rotated and positioned with respect to the pile head according to the amount of misalignment and the direction of misalignment between the column base position of the building and the pile, and is welded and fixed to the pile head. And
    The center bolt inserted into the long hole of the adjustment plate is installed so as to be located at the center of the planned column base of the building,
    The pile head plate is fixed with the center bolt inserted into the elongated hole of the adjustment plate being inserted into the round hole,
    The base plate is placed on the central bolt in a predetermined direction,
    The connection structure of a pile and a building, wherein the connection bolt is tightened and adjusted so that the column base is vertical.
  2.   A plurality of fixing bolts are circumferentially arranged around the center bolt, and the plurality of fixing bolts further make the joint between the pile head plate and the adjustment plate more rigid. The joint structure of the pile according to claim 1 and a building.
  3. A ring-shaped plate is welded to the upper outer surface of the pile;
    A plurality of fixing bolts fasten between the pile head plate and the ring-shaped plate fixed to the adjustment plate by the center bolt, and the joint between the pile head plate and the adjustment plate is a rigid body. The joint structure of the pile according to claim 1 and a building.
  4. A height adjustment bag nut is attached to the upper screw of the central bolt that joins the disk-shaped adjustment plate and the pile head plate,
    4. The installation height of the base plate to which the column base is attached can be adjusted by rotating the height adjusting bag nut. 5. Joint structure between pile and building.
  5.   The joint structure between a pile and a building according to any one of claims 1 to 3, further comprising a cover cap that prevents the center bolt and the fixing bolt from falling and rotating together.
  6.   The non-shrink mortar is filled in the gap between the pile head plate and the base plate, and the pile-building joint structure according to any one of claims 1 to 3.
  7.   The said pile is a steel pipe pile, The joining structure of the pile and building as described in any one of Claim 1 thru | or 3 characterized by the above-mentioned.
  8. A joining structure between a pile and a building for joining the pile and a building installed on the pile,
    A disk-shaped adjustment plate attached to the pile head of the pile and having a long hole extending from the center to the outer diameter of the pile;
    A central bolt inserted into the elongated hole of the adjustment plate;
    A pile head plate fixed to the adjustment plate by the center bolt and having a round hole formed therein,
    A connecting bolt for connecting the foundation horizontal beam of the building to the pile head plate;
    The adjusting plate is rotated and positioned with respect to the pile head according to the center misalignment amount and the core misalignment direction of the pile with respect to the joint position of the foundation horizontal beam of the building, and is fixed to the pile head by welding. And
    The center bolt inserted into the long hole of the adjustment plate is aligned with the center of the joint position of the foundation horizontal beam of the building,
    The pile head plate is fixed with the center bolt inserted into the elongated hole of the adjustment plate being inserted into the round hole,
    The pile-building joint structure characterized in that the foundation horizontal beam of the building is placed on top of the center bolt and fixed to the pile head plate by the connecting bolt.
  9. A height adjustment bag nut is attached to the upper screw of the central bolt that joins the disk-shaped adjustment plate and the pile head plate,
    The structure for joining a pile and a building according to claim 8, wherein the height of the foundation horizontal beam of the building can be adjusted by rotating the height adjusting bag nut.
  10.   10. The pile-building joint structure according to claim 8, wherein the laminated vibration preventing body is sandwiched between the pile head plate and a foundation horizontal beam of the building.
  11.   The non-shrink mortar is filled between the pile head plate and a foundation horizontal beam of the building, and the pile-building joint structure according to claim 8 or 9.
  12. In the method of joining the pile and the building installed on the pile,
    After the pile is embedded in the ground, a hole having a predetermined depth is excavated around the pile head of the pile so that the joint portion between the pile and the building is not exposed to the ground surface. Cutting the portion by a predetermined length;
    A step of fixing an adjustment plate made of a disk-like plate having a long hole extending in the outer diameter direction from the center to the pile head, with a center bolt inserted and held in the long hole, The amount of misalignment and the core between the position where the pile is embedded and the planned installation position of the column base so that the center bolt is positioned at the center of the base plate fixed to the lower end of the column base of the building In accordance with the displacement direction, after rotating and positioning the adjustment plate relative to the pile head, fixing the adjustment plate to the pile head;
    A step of tightening and fixing the adjustment plate and the pile head plate with the center bolt through the round hole of the pile head plate to the center bolt inserted through the long hole of the adjustment plate;
    A height adjustment bag nut is attached to the upper screw of the center bolt, and the base plate is placed on the height adjustment bag nut so as to adjust the installation height of the base plate, and the pile head plate and the base plate are connected. Tightening and adjusting the connecting bolt to raise the column base vertically to the planned installation position;
    A method for joining a pile and a building, comprising the step of pouring concrete into the excavation hole and burying the pile head, the adjustment plate, the pile head plate, the base plate, and the lower end of the column base.
  13. After the pile is embedded in the ground, a hole having a predetermined depth is excavated around the pile head of the pile so that the joint portion between the pile and the building is not exposed to the ground surface. In the step of cutting the part by a predetermined length,
    The pile and building according to claim 12, wherein the pile is embedded by any one of Nakabori method, auger combined burying method, winged rotary burying method, cement milk injection method and press-fitting method. Joining method.
JP2002349480A 2002-12-02 2002-12-02 Joining structure and joining method of pile and building Active JP3647841B2 (en)

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JP5467983B2 (en) * 2009-10-02 2014-04-09 新日鉄住金エンジニアリング株式会社 Pile head joint structure
JP5699015B2 (en) * 2011-03-30 2015-04-08 株式会社Nttファシリティーズ Steel pile and structure joint structure
JP2013060711A (en) * 2011-09-12 2013-04-04 Chiyoda Geotech Co Ltd Foundation structure for solar cell module or solar cell array frame
JP5356482B2 (en) * 2011-09-20 2013-12-04 千代田工営株式会社 Fundamental structure of solar cell module or solar cell array mount
JP5836094B2 (en) * 2011-12-02 2015-12-24 株式会社Nttファシリティーズ Solar cell panel mount and solar cell device
JP2013159945A (en) * 2012-02-03 2013-08-19 Chiyoda Geotech Co Ltd Connection structure of superstructure and pile
JP5940318B2 (en) * 2012-02-13 2016-06-29 城東テクノ株式会社 Installation method of mounting base
JP5968667B2 (en) * 2012-04-13 2016-08-10 株式会社西部工建 Construction method of lightweight building foundation
JP2014095279A (en) * 2012-11-09 2014-05-22 Nagoya Structure Design Inc Foundation structure and joint structure between steel column and foundation
JP6161056B2 (en) * 2013-01-15 2017-07-12 株式会社双葉工業社 Pile top structure with construction error adjustment function
JP6245816B2 (en) * 2013-03-04 2017-12-13 旭化成建材株式会社 Joint structure between pile and superstructure
JP6245815B2 (en) * 2013-03-04 2017-12-13 旭化成建材株式会社 Joint structure between pile and superstructure
JP6210759B2 (en) * 2013-07-01 2017-10-11 株式会社竹中工務店 Pile beam joint structure and pile beam joint method
JP6270020B2 (en) * 2013-07-31 2018-01-31 東京電力ホールディングス株式会社 Reinforcement method for bolted joints of steel towers
KR101524302B1 (en) * 2013-10-02 2015-05-29 (주)천마엔지니어링 Construction method for underground structure without temporary structure
KR101516746B1 (en) 2013-10-02 2015-05-07 (주)천마엔지니어링 Construction method for girder and construction method for underground structure without temporary structure using the same

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