JP2018204379A - Joint structure for steel material - Google Patents

Abstract

To provide a joint structure for steel material that can join steel materials while absorbing construction errors of the steel materials.SOLUTION: A joint socket 30 comprising a different diameter cylinder main body 25 in a cylindrical shape and a plurality of pieces of gap adjustment means 34, 36 is used, the different diameter cylinder main body 25 having a lower cylinder 31, an upper cylinder 32, and a shelf board 33. The joint socket 30 is positioned by interposing the shelf board between lower and upper steel materials. The plurality of pieces of gap adjustment means 34, 36 perform an adjustment in a range of an adjustment gap Gformed between one of the lower cylinder 31 and the upper cylinder 32, and, the peripheral surface of a steel material 10 thereof, and the horizontal position and the raised angle of an adjusted upper steel material 20 are held.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a joining structure of steel materials applicable to joining of support piles and support columns such as temporary bridges and piers.

Steel materials such as steel pipes are used as support piles and support pillars for temporary piers, etc., and the support pillars are joined to the upper part of the support piles that are driven into the ground and extended.
Although all-around welding is known as a means for joining the support pile and the support column, various mechanical joining methods using a cylindrical joint socket have been proposed for the reason that the work becomes large.

Patent Document 1 discloses a joining method in which a joint socket having an inner diameter substantially the same as the outer diameter of the upper and lower steel pipes is used and the joint socket is sheathed across the abutting portions of the upper and lower steel pipes.
In Patent Document 2, a joint socket having an inner diameter larger than the outer diameter of the upper and lower steel pipes is used, and a plurality of through bolts are provided between the joint socket and the upper and lower steel pipes that are sheathed across the butt portion of the upper and lower steel pipes. There is disclosed a joining method in which an adhesive is filled and fixed in a gap formed between the joint socket and the peripheral surfaces of the upper and lower steel pipes after being threaded through.
In Patent Document 3, a split joint socket having an inner diameter larger than the outer diameter of the upper and lower steel pipes, a plurality of band members for fastening the joint socket, and a gap between the joint socket and the peripheral surfaces of the upper and lower steel pipes are included. Using a pair of spacers made of hard rubber and presenting an annular shape, a semi-cylindrical socket divided into upper and lower steel pipes with an intervening spacer between them and then tightening the band material to tighten the upper and lower steel pipes A joining method is disclosed in which joints are joined flexibly.
Patent Document 4 discloses a joining method in which end portions of upper and lower steel pipes are directly fitted with each other without using a joint socket, and a plurality of through bolts are screwed to and integrated with a superposed fitting portion. Has been.

JP 10-273912 A JP 11-222853 A JP 2001-64961 A JP 2005-351212 A

A conventional steel pipe mechanical joint structure has the following problems.
<1> Since it is difficult to drive a support pile to a normal height while maintaining verticality in a riverbed or the like, the upper portion of the support pile may be displaced from a normal position or tilted.
When a horizontal displacement or tilt occurs in the support pile after driving in, the conventional joint socket cannot absorb these construction errors.
<2> In the joining methods disclosed in Patent Documents 2 and 4, a large number of bolts must be attached while performing troublesome positioning of the bolt holes, requiring much time and labor for joining work. However, the construction cost is high.
<3> The joining technique of Patent Document 3 using a split joint socket, a band material, and a hard rubber spacer is a joining structure that allows displacement of the joining portion, and the joining portion cannot be joined undisplaceably. .

The present invention has been made in view of the above points, and an object thereof is to provide at least one of the following steel pipe joint structures.
<1> It must be able to absorb steel construction errors and join them.
<2> Able to improve the workability on site and economically join.
<3> The horizontal position or angle of the steel material can be readjusted after joining.
<4> Applicable to joining of various known steel materials.

The present invention adjusts a cylindrical different-diameter cylinder body that can be externally straddled across the abutting portions of the upper and lower steel materials in the vertical direction, and an adjustment gap formed between the different-diameter cylinder body and the steel material. And a steel material joining structure in which the upper part of the support pile and the lower part of the support column are integrally joined using a joint socket having a plurality of gap adjusting means for positioning the different-diameter cylinder main body and the steel material. The lower-diameter cylinder main body has a lower cylinder that can be packaged on the upper part of the lower steel material, an upper cylinder that can be packaged on the lower part of the upper steel material, and a boundary portion between the lower cylinder and the upper cylinder positioned on the coaxial line. And at least one of the lower cylinder and the upper cylinder formed in different diameters and adjusted between the peripheral surfaces of either the upper or lower steel material. When a gap is formed and the joint socket is sheathed across the lower steel and the upper steel, the lower steel The joint socket is positioned by interposing a shelf plate between the upper end and the lower end of the upper steel material, and the horizontal position and the standing angle of the upper steel material adjusted by the plurality of gap adjusting means within the adjustment gap range. Hold.
In another embodiment of the present invention, the inner diameter of the lower cylinder of the joint socket is larger than the inner diameter of the upper cylinder, and a plurality of gap adjusting means are disposed at least in a part of the lower cylinder. The adjusting means can press the outer peripheral surface of the lower steel material.
In another aspect of the present invention, the inner diameter of the upper cylinder of the joint socket is larger than the inner diameter of the lower cylinder, and a plurality of gap adjusting means are disposed at least in a part of the upper cylinder, The adjusting means can press the outer peripheral surface of the upper steel material.
In another embodiment of the present invention, either the upper cylinder or the lower cylinder of the joint socket has a dimensional relationship that can circumscribe either the upper or lower steel material.
In another embodiment of the present invention, the plurality of gap adjusting means are a plurality of fixed adjusting bolts screwed to a part of the different diameter cylinder main body.
In another embodiment of the present invention, a tensile material is stretched along the axial direction between the outer peripheral surface of the upper and lower steel materials and the outer peripheral surface of the joint socket.
In another aspect of the present invention, the lower steel material is any one of a steel pipe, a column material, or an H-shaped steel, and the upper steel material is any one of a steel pipe, a column material, or an H-shaped steel, The lower or upper steel material is a combination of the same steel materials or a combination of different steel materials.
In another embodiment of the present invention, the lower steel material is a support pile, and the upper steel material is a support column.

The present invention has at least one of the following effects.
<1> After covering the joint socket across the abutting portions of the upper and lower steel materials butted in the vertical direction, and operating a plurality of gap adjusting means such as fixing adjustment bolts, With a simple operation of positioning the upper steel material, it is possible to absorb the construction error of the lower steel material and stand the upper steel material at the normal position.
<2> Since the upper and lower steel materials can be firmly joined without penetrating the bolts in the steel material, the workability in the field can be greatly improved as compared with the conventional case, and the joining can be performed economically.
<3> After the joining, the horizontal position or tilt of the steel material can be readjusted by operating a plurality of gap adjusting means.
The <4> joint socket can be applied not only to known steel pipes but also to various known steel materials such as column materials and H-shaped steels, and is versatile.

The perspective view of the junction which fractured | ruptured a part of joint socket which concerns on Example 1. FIG. It is explanatory drawing of the junction part of a support pile and a support pillar, Comprising: (A) is a longitudinal view of a junction part, (B) is BB sectional drawing of (A), (C) is C- of (A). C cross-sectional view, (D) is an explanatory view of another adjustment fixing bolt It is explanatory drawing of the joining method of a support pile and a support pillar, (A) is explanatory drawing of the cutting process of a support pile upper part, (B) is explanatory drawing of the lifting process of a support pillar, (C) is the support which finished joining Explanatory drawing of column correction process Longitudinal sectional view of the joining portion of the steel material according to Example 2 in which the support column is inscribed in the upper tube of the joint socket and joined. Longitudinal sectional view of the joint portion of the steel material according to Example 3 joined by reversing the dimensional relationship between the lower cylinder and the upper cylinder of the joint socket It is explanatory drawing which concerns on Example 4 which changed the steel material of the support pillar, (A) is explanatory drawing which applied column material, (B) is explanatory drawing which applied H-section steel. It is explanatory drawing which concerns on Example 4 which changed the steel material of a support pile, (A) is explanatory drawing which applied column material, (B) is explanatory drawing which applied H-section steel. It is explanatory drawing which concerns on Example 4 which changed the steel material of a support pile, (A) is explanatory drawing which applied column material, (B) is explanatory drawing which applied H-section steel. It is explanatory drawing of the joining technique of the steel materials which concern on Example 6, and is a partial longitudinal cross-sectional view of the junction part which arranged and connected the tension | tensile_strength material additionally.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

<1> Combination of steel material of support pile and support column In the first embodiment, a mode in which the support pile 10 and the support column 20 are steel pipes of the same kind and the same diameter will be described.

<2> Mechanical Joining Means for Steel Materials Referring to FIGS. 1 and 2, in the present invention, a lower support pile 10 and a higher support supported in the longitudinal direction using a tubular joint socket 30 are used. The columns 20 are joined together.
The joint socket 30 has a different diameter cylindrical main body 35 that can be sheathed across the abutting portion of the support pile 10 and the support pillar 20, and a plurality of gap adjustments for positioning the different diameter cylinder main body 35, the support pile 10, and the support pillar 20. Means.
In this example, a case will be described in which the plurality of gap adjusting means are fixed adjusting bolts 34 and 36 screwed to the peripheral surface of the different-diameter cylindrical main body 35.

<2.1> different diameter tubular body different diameter tubular body 35 and the lower tube 31 can be the exterior through the first adjustment gap G ₁ at the top of the support piles 10, support pillars in the lower part of the 20 second adjustment gap G ₂ And a shelf plate 33 that is integrated with the boundary between the two cylinders 31 and 32 positioned on the coaxial line.
In this example, the lower cylinder 31 and the upper cylinder 32 are each formed of a steel pipe having a different diameter.
The shelf plate 33 is a plate member that integrates the cylinders 31 and 32 having different diameters so as to be able to transmit a load, and is interposed between the butted ends of the support pile 10 and the support column 20, and is formed of, for example, a steel plate. .
The shape of the shelf board 33 is not limited to the illustrated annular shape, and may be a square shape.
The shelf plate 33 projects horizontally toward the inside of both cylinders 31 and 32 so that it can be interposed between the butted ends of the support pile 10 and the support column 20.

<2.2> If only the outer respectively the lower tube 31 and the upper cylinder 32 of the dimensional relationship joint socket 30 of steel and a lower cylinder and an upper cylinder to bearing pile 10 and the support pillar 20, the inner diameter D ₁ of the lower tubular 31 an inner diameter _{D 2} of the upper cylinder 32 diameter _{d 1} of the support piles 10 and support post 20, may be the diameter _{d 2} larger than the same diameter as.
Construction error (horizontal error, tilting errors) of the support piles 10 in the present invention in order to absorb the joint socket 30, different inner diameter D ₂ of the inner diameter D ₁ and the upper cylinder 32 of the lower cylinder 31 without the same diameter A combination of diameters was used, and an adjustment gap was formed between at least one of the lower cylinder 31 or the upper cylinder 32 and the peripheral surface of either the support pile 10 or the support column 20.

<2.3> to form a first adjustment gap G ₁ between the peripheral surface of the lower tube 31 and the supporting piles 10 in adjusting gap present embodiment, the second adjustment between the peripheral surface of the upper cylinder 32 and the support pillar 20 It will be described embodiments of forming the gap G _2.
As first adjustment gap _{G 1} is increased with respect to the second adjustment gap _{G 2} is further in this example, greater than the inner diameter _{D 2} of the upper cylinder 32 an inner diameter _{D 1} of the lower cylinder 31 _(D 1> _{D 2)} Dimensions There is a relationship.

<2.3.1> first adjusting clearance first adjustment gap G ₁ is a gap for adjusting by absorbing construction errors of the supporting piles 10 (tilting and horizontal position) (corrected).
Displacement of the horizontal position of the supporting piles 10 is proportional to the first adjustment gap G _1.
Displacement of the standing angle at which the supporting pile 10 is proportional to the first adjustment gap G _1, is inversely proportional to the total length of the lower tubular 31.
Therefore, the total length of the first adjustment gap G ₁ and the lower tube 31 so as to absorb the construction errors of the supporting piles 10 envisaged can be appropriately changed.

<2.3.2> second adjustment gap second adjustment gap G ₂ is a gap for fine adjustment of the tilt and horizontal position of the support pillar 20 after joining of the supporting pile 10 and the support posts 20.
Displacement of the horizontal position of the support column 20 is proportional to the second adjust gap G _2.
Displacement of the angle of the supporting pillar 20 is proportional to the second adjust gap G _2, is inversely proportional to the total length of the upper cylinder 32.

<2.4> Fixed Adjustment Bolts A plurality of fixed adjustment bolts 34 and 36 function to adjust the horizontal position and angle of the support pile 10 and the support column 20 in cooperation with the different-diameter cylindrical main body 35, and the support after adjustment. It has a function (positioning function) for maintaining the positions of the pile 10 and the support column 20.
Since the plurality of fixed adjustment bolts 34 and 36 do not penetrate the support pile 10 or the support column 20, no special processing such as opening a bolt hole in the support pile 10 or the support column 20 is required.

<2.4.1> Number of fixing adjustment bolts and screwing positions The number of adjusting fixing bolts 34, 36 screwed at equal intervals in the circumferential direction to each cylinder 31, 32 may be three or more. The number is appropriately selected in consideration of the bending strength required for the joint socket 30.
Furthermore, the screwing positions of the adjustment fixing bolts 34 and 36 are not limited to the upper and lower portions of the cylinders 31 and 32, and may be additionally provided on the peripheral surface between the upper and lower portions.
In this example, the adjustment fixing bolts 34 and 36 are screwed onto the nuts 31a and 32a fixed to the outer peripheral surfaces of the cylinders 31 and 32 by welding or the like, but screw holes are directly formed in the cylinders 31 and 32, respectively. The adjustment fixing bolts 34 and 36 may be screwed together.

<2.4.2> Fixed adjustment bolts with contact plates As shown in FIG. 2 (D), bolts having larger contact plates 37 than the bolt shafts attached to the ends of the bolt shafts as the adjustment fixing bolts 34 and 36, respectively. May be used. When the adjustment fixing bolts 34 and 36 provided with the contact plate 37 are used, the fixing force between the support pile 10 and the support column 20 can be increased, and the number of adjustment fixing bolts 34 and 36 used can be reduced.

[Joint method]
A method of joining the support pile 10 and the support column 20 using the joint socket 30 will be described with reference to FIG.

<1> Standing support pile FIG. 3 (A) shows a case where the pile head height of the placed support pile 10 is higher than the normal position and is inclined by an angle θ with respect to the vertical line to be placed. Yes.
Since it is difficult to place the support pile 10 in accordance with a predetermined pile head height while maintaining the verticality, in order to correct the pile head, the upper portion of the support pile 10 indicated by a broken line is shown. Cut horizontally along the design height 11.

<2> Joint socket grounding The upper socket 32 is externally mounted on one end of the support column 20 laid on the ground surface, and the joint socket 30 is grounded.
The upper cylinder 32 is inserted until the shelf plate 33 comes into contact with one end of the support column 20, and the plurality of fixing adjustment bolts 36 are tightened to assemble the joint socket 30 at one end of the support column 20.
When the joint socket 30 is grounded, the fixing adjustment bolt 36 is tightened and temporarily assembled so that the joint socket 30 does not fall by its own weight when the support column 20 is lifted.
In some cases, the joint socket 30 is temporarily assembled under the support column 20 in a state where the support column 20 is lifted.

<3> Suspension of Support Column FIG. 3B shows a state in which the support column 20 with the joint socket 30 attached to the lower portion is suspended vertically by a crane or the like, and FIG. The state which coat | covered the lower cylinder 31 on the upper part of the support pile 10 is shown.
The support column 20 suspended from a crane or the like is moved directly above the existing support pile 10, and the support column 20 is lowered to cover the lower cylinder 31 of the joint socket 30 on the support pile 10.
When the shelf plate 33 of the joint socket 30 abuts against the end face of the support pile 10, the lowering of the support pillar 20 is restricted, and the support pillar 20 is extended above the support pile 10.
By interposing the shelf plate 33 between the upper end of the support pile 10 and the lower end of the support column 20, the joint socket 30 that is sheathed between the support pile 10 and the support column 20 can be positioned.

<4> Correction of construction error In the present invention, the support column 20 is erected at a normal position by absorbing a construction error of the existing support pile 10 joined by performing a simple correction operation using the joint socket 30 described below. be able to.

<4.1> Adjustment of horizontal position When the upper position of the support pile 10 is displaced horizontally from the normal position, the plurality of fixing adjustment bolts 34 screwed to the lower cylinder 31 are operated forward and backward to change the joint socket 30. Displace toward the correction direction.
While performing a pressing operation in which the tips of the plurality of fixed adjustment bolts 34 are brought into contact with the outer peripheral surface of the support pile 10 and a backward operation of the fixed adjustment bolt 34 on the other side, The entire socket 30 is moved horizontally in the correction direction.
The support column 20 inserted in the upper cylinder 32 follows the joint socket 30 and moves horizontally in the correction direction.

<4.2> Angle adjustment When the support pile 10 is inclined at an angle θ with respect to the normal vertical line, the upper and lower fixed adjustment bolts 34 screwed to the lower cylinder 31 are rotated in the forward and reverse directions. By operating, the angle of the support column 20 together with the joint socket 30 is corrected vertically.
In a first range of adjustment gap G ₁ is formed between the peripheral surface of the lower tube 31 and the supporting piles 10, it is possible to correct the horizontal position and angle of the joint socket 30 and the support pillar 20.
For convenience of explanation, the horizontal position and angle adjustment of the joint socket 30 with respect to the support pile 10 have been described separately, but actually, these operations are performed in parallel.

<4.3> Fixing of the support pile and the lower cylinder After completing the correction of the horizontal position and angle of the joint socket 30 with respect to the support pile 10, all the fixing adjustment bolts 34 are tightened between the support pile 10 and the lower cylinder 31. It is rigidly fixed so that it cannot be displaced.

<4.4> When the adjustment amount of the support posts 20 in the fine adjustment first adjusting the gap G ₁ range of support column is insufficient, a plurality of fixed adjustment bolt 36 which is screwed to the upper cylinder 32 of the joint socket 30 The horizontal position and angle of the support column 20 are finely adjusted by rotating in the forward and reverse directions.
Since the joint socket 30 is fixed to the upper portion of the support pile 10 by the lower cylinder 31 and the plurality of fixing adjustment bolts 34 so as not to be displaced, a pressing reaction force is obtained from the support pile 10 and the joint socket 30, and the second adjustment gap G Within the range of ₂ , the horizontal position and angle of the support column 20 can be finely adjusted.

<4.5> Fixing of the support pile and the upper cylinder After the correction of the horizontal position and the standing angle of the support pillar 20, all the fixing adjustment bolts 36 are tightened so that the displacement between the support pillar 20 and the upper cylinder 32 is impossible. Tightly connect to.
After all the joints between the support pile 10 and the support column 20 are completed using the joint socket 30, the support column 20 is separated from the crane or the like.
Thus, after the joint socket 30 is sheathed across the abutting portion of the support pile 10 and the support pillar 20, the construction error of the support pile 10 can be reduced by a simple operation of simply rotating the plurality of fixing adjustment bolts 36. The support column 20 can be erected at the normal position by absorbing.
Therefore, compared with the conventional joining structure, workability in the field can be greatly improved and joining can be performed economically.

[Characteristics of joint part]
The characteristics of the joint between the support pile 10 and the support column 20 joined using the joint socket 30 will be described with reference to FIG.

<1> Compression Axial Force A compression axial force due to the weight of the support column 20 and the overload is always acting on the joint between the support pile 10 and the support column 20.
Since the upper and lower surfaces of the shelf plate 33 of the joint socket 30 are in contact with each other between the opposed surfaces of the opposing support pile 10 and the lower end of the support column 20, the compression axial force is the shelf plate. It transmits between the support pile 10 and the support pillar 20 through 33.
The compression axial force does not directly act on the lower cylinder 31 or the upper cylinder 32, and similarly does not act on the plurality of fixed adjustment bolts 34 and 36 screwed to the both cylinders 31 and 32.

<2> Bending force When a bending force acts on the joint between the support pile 10 and the support column 20 on which a compression axial force always acts, the strength of the joint socket 30 resists the bending force.
Specifically, the bending force can be transmitted between the support pile 10 and the support column 20 through the fixing adjustment bolts 34 and 36 and the different-diameter cylinder body 35, and the strength of the joint socket 30 resists the bending force.
Since a plurality of fixing adjustment bolts 34 and 36 screwed to the peripheral surfaces of both cylinders 31 and 32 at equal intervals contact the outer peripheral surfaces of both cylinders 31 and 32 and restrain free deformation of both cylinders 31 and 32. Even if a bending force is applied to the different-diameter cylinder main body 35, the circular shapes of both the cylinders 31 and 32 are maintained.
Thus, in the present invention, since a bending force can be transmitted through the joint socket 30 under a condition in which a compressive axial force acts on the joint, a rational and simple joint structure can be obtained.

<3> Readjustment after Joining After joining the support pile 10 and the support column 20, the support pile 10 and the support column 20 are rotated by rotating the fixing adjustment bolts 34 and 36 screwed to the joint socket 30 as necessary. The horizontal position and angle can be readjusted.

<4> Dismantling separation When dismantling a temporary pier, temporary bridge, etc., it is possible to release the joint between the support pile 10 and the support column 20 with a simple operation by simply loosening the fixing adjustment bolts 34, 36 of the joint socket 30. it can. The separated and removed joint socket 30 can be reused.

  Other embodiments will be described below. In the description, the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

  A second embodiment in which the lower part of the support pillar 20 is inscribed in the upper cylinder 32 and joined using a joint socket 30a configured to be externally mounted will be described with reference to FIG.

<1> Joint socket joint socket 30a includes a lower tube 31 can be the exterior through the first adjustment gap G ₁ at the top of the support piles 10, an exterior possible upper cylinder 32 in the lower part of the support pillar 20, both cylinder 31 , 32 and a shelf board 33 integrated with each other.
The inner diameter D ₂ of the upper cylinder 32 is each other to form a radial same diameter or slightly larger diameter and d ₂ of the support column 20, to accommodate possible dimensional relationship by inscribed at the bottom of the support pillars 20 on cylinder 32 It has become.
The inner diameter D ₁ of the lower cylinder 31 is larger than the inner diameter D ₂ of the upper cylinder 32 (D ₁ > D ₂ ), and the horizontal positions of the joint socket 30 and the support column 20 are within the range of the first adjustment gap G _1. The correction of the angle is the same as in the first embodiment.

<2> Effects of the present embodiment In the second embodiment, in addition to the effects of the first embodiment, the fixing adjustment bolt 36 of the upper cylinder 32 can be omitted, so that the manufacturing cost of the joint socket 30a can be reduced.

Or an inner diameter _{D 1} of the lower cylinder 31 is greater than the inner diameter _{D 2} of the upper cylinder 32 of Examples 1 and 2 in the joint socket 30,30a _(D 1> D ₂₎ has been described the configuration in dimensional relation, the lower cylinder You may join using the joint socket 30b which reversed the dimensional relationship of 31 and the upper cylinder 32. FIG.

<1> Joint Socket Referring to FIG. 5, the different-diameter cylinder main body 35 of the joint socket 30 b is such that the inner diameter D ₂ of the upper cylinder 32 is larger than the inner diameter D ₁ of the lower cylinder 31 (D ₂ > D ₁ ). There is a relationship.
In the third embodiment, after the lower cylinder 31 of the joint socket 30b is externally attached to the upper portion of the support pile 10, the lower portion of the support pillar 20 is dropped into the upper cylinder 32 to join the support pile 10 and the support pillar 20.
To form a first adjustment gap G ₁ between the peripheral surface of the lower tube 31 and the supporting piles 10 in Figure 5, but showing the screwed with form a plurality of fixed adjustment bolt 34, is omitted fixed adjustment bolt 34 under The cylinder 31 and the peripheral surface of the support pile 10 may be brought into contact with each other to be externally mounted.

<2> Effects of the present embodiment In the third embodiment, since the lower cylinder 31 of the joint socket 30b is fixed to the upper portion of the support pile 10 so as not to be displaced, the reaction force from the support pile 10 and the joint socket 30b. was obtained, and the horizontal position and angle of the support column 20 and the upper cylinder 32 and the support posts support posts 20 a plurality of fixed adjustment bolt 36 by rotating the operation in the second adjustment gap G ₂ ranges formed between the 20 Can be corrected.

Although the steel materials which comprise the support pile 10 and the support pillar 20 were the combination of steel pipes in the previous Examples 1-3, the steel material which comprises the support pile 10 and the support pillar 20 has a rectangular cross section other than a steel pipe Column material or H-shaped steel may be used, and the combination of the steel materials of the support pile 10 and the support column 20 may be a combination of different steel materials in addition to the combination of the same steel materials.
Below, the combination of the other steel materials which comprise the support pile 10 and the support pillar 20 is illustrated.

<1> When the Support Column is a Column FIG. 6A shows a combination of different steel materials in which a column material in which the support column 20 has a rectangular cross section is applied to the support pile 10 made of steel pipe.
In this example, a joint socket 30c having a lower cylinder 31 having a circular cross section, an upper cylinder 32 having a rectangular cross section, and a shelf plate 33 interposed between both cylinders 31 and 32 is used.
The support column 20 accommodated in the upper cylinder 32 of the joint socket 30c may be fixed by a plurality of fixing adjustment bolts 36 shown in the figure, or may be inscribed and joined to the upper cylinder 32 without using the fixing adjustment bolts 36. Also good.

<2> Case where Support Column is H-Shaped Steel FIG. 6B shows a combination of dissimilar steel materials in which the support column 20 is H-shaped steel with respect to the support pile 10 made of steel pipe.
A joint socket 30c similar to that shown in FIG. 6A is used for joining in this example.
The support column 20 accommodated in the upper cylinder 32 of the joint socket 30c may be fixed by the illustrated plurality of fixing adjustment bolts 36, or may be inscribed in the upper cylinder 32 and joined without using the fixing adjustment bolts 36. Good.
When the support column 20 accommodated in the upper cylinder 32 is fixed by a plurality of fixing adjustment bolts 36, the spacers 21 and 21 having the same shape and the same shape are accommodated in the recessed space formed between the flange of the H-shaped steel and the web. If it does, the horizontal position and angle of the support pillar 20 made from H-shaped steel can be adjusted using the some fixed adjustment bolt 36 provided in the four directions of the upper cylinder 32. FIG.

<3> Case where Support Pile is Column FIG. 7A shows a combination of different steel materials in which a column material in which the support pile 10 has a rectangular cross section is applied to the support column 20 made of steel pipe.
In this example, a joint socket 30d including a lower cylinder 31 having a rectangular cross section, an upper cylinder 32 having a circular cross section, and a shelf plate 33 interposed between both cylinders 31 and 32 is used.
The support pile 10 accommodated in the lower cylinder 31 of the joint socket 30d may be fixed by a plurality of fixed adjustment bolts 34 shown in the figure, or may be inscribed in the lower cylinder 31 and joined without using the fixed adjustment bolts 34. Also good.

<4> When a support pile is H-section steel FIG.7 (B) has shown the combination of the dissimilar steel materials which applied H-section steel to the support pile 10 with respect to the support pillar 20 made from a steel pipe.
The joint socket 30d is used for joining in this example, and the lower cylinder 31 having a rectangular cross section is externally mounted on the support pile 20 made of H-shaped steel, and the steel cylinder support pillar 20 is mounted on the upper cylinder 32 having a circular cross section. Is interpolated.

<5> Other Joining Examples FIG. 8A shows a combination of different steel materials in which a column material having a rectangular cross section is applied to the support pile 10 with respect to the support pillar 20 made of steel pipe, and FIG. 10 shows a combination of different steel materials to which H-shaped steel is applied.
The combination of the support pile 10 and the support pillar 20 is the same as in FIG. 7, but in this example, the lower cylinder 31 having a circular cross section, the upper cylinder 32 having a circular cross section, and a shelf plate 33 interposed between both cylinders 31, 32 It is also possible to join using the joint socket 30 used in Example 1 having the above.

<6> Combination with Embodiments 2 and 3 The combination of the support pile 10 and the support column 20 is a combination of column materials other than steel pipes or the same or different steel materials of H-shaped steel. , 3 can be applied.

<7> Effects of the present embodiment In the fourth embodiment, even if the combination of the support pile 10 and the support column 20 is a combination of a column material other than a steel pipe or the same kind or different kind of steel material of H-shaped steel, it is supported. By properly using the joint sockets 30a to 30d in which the cross-sectional shape of the lower cylinder 31 or the upper cylinder 32 is changed according to the cross-sectional shape of the pile 10 or the support column 20, the standing error of the support pile 10 is corrected and the support column 20 is changed. Can be joined and is versatile.

The plurality of gap adjusting means is not limited to the fixed adjusting bolts 34 and 36 described above.
Other multiple gap adjusting means, can be applied movably interpolation possible plurality of wedge for example, the first adjustment gap D ₁ or the second adjusting gap D _2.
Still other more gap adjusting means, it is also possible that the first interpolated to adjust the gap D ₁ or the second adjusting gap D ₂ by applying a plurality of shrink bags that can shrink by a fluid pressure.
In short plurality of gap adjusting means adjusts the first adjustment gap D ₁ or the second adjusting gap D _2, may be any mechanism capable of positioning the different diameter tubular body 35, supporting piles 10 and support posts 20.

  A sixth embodiment in which a plurality of tensile members 40 are additionally arranged in the joint socket 30 will be described with reference to FIG.

<1> Tensile Material Tensile material 40 is a tension that connects the lower cylinder 31 of the joint socket 30, the support pile 10, and the outer peripheral surface, and between the upper cylinder 31 of the joint socket 30 and the outer peripheral surface of the support column 20 in the axial direction. It is a strong bar-like or rope-like tension material.
Cylindrical brackets 31b and 32b are provided on the outer peripheral surfaces of the lower cylinder 31 and the upper cylinder 32 of the joint socket 30 so as to project from the outer periphery of the support pile 10 and the support column 20 in the axial direction. Brackets 11 and 21 project.
Tensile members 40 are bridged and connected between the brackets 11 and 31b and the brackets 21 and 32b which are arranged in the axial direction and make a pair.
A pair of tension members 40, 40 arranged in each axial direction is made into one set, and two or more sets of tension members 40 are equally spaced along the circumferential direction of the joint socket 30 so as not to interfere with the gap adjusting means (not shown). It is arranged.

<2> Illustration of Tensile Material In this example, the case where the tension material 40 is configured by a combination of a connecting bolt 41 and a nut 42 will be described.
The base end of the connecting bolt 41 of the tension member 40 is pivotally supported by the brackets 11 and 21 via a support shaft 43 such as a pin or a bolt, and is provided with a bolt hole opened in the cylinder side brackets 31b and 32b. A nut 42 is screwed onto and tightened to the tip of each connecting bolt 41 passed through the slit, and is supported between the lower cylinder 31 of the joint socket 30, the support pile 10, and the outer peripheral surface, and the upper cylinder 31 of the joint socket 30. The space between the outer peripheral surfaces of the columns 20 can be tightened.
In addition, you may connect each tension | tensile_strength material 40 with the up-down direction reversed.

<3> Action of Tensile Material In the present embodiment in which the joint portion between the support pile 10 and the support column 20 butt against the joint socket 30 is connected by a plurality of sets of tensile materials 40, the joint socket 30 Not only can the support pile 10 and the support column 20 be prevented from coming out, but the reinforcing member 40 functions as a tensile and bending strength member of the joint, so that the tensile strength and bending strength at the joint are greatly improved.

10 ... Support pile (lower steel)
20 ... support pillar (upper steel)
30 ... Joint sockets 30a to 30d ... Joint socket 31 ... Lower cylinder 32 of the joint socket ... Upper cylinder 33 of the joint socket ... Shelf plate 34 of the joint socket ... Fixed adjustment of the lower cylinder Bolt (Gap adjustment means)
35 ... Different diameter cylinder body 36 ... Upper cylinder fixing adjustment bolt (gap adjustment means)
40 ... tension members 41 ... connecting bolts 42 ... nut _D 1 ... first adjustment gap _D 2 ... second adjustment gap

Claims (8)

Adjusting the adjustment gap formed between the different diameter cylinder main body and the steel material by adjusting the cylindrical different diameter cylinder main body that can be externally straddled across the abutting portions of the upper and lower steel materials in the vertical direction. A steel material joint structure that integrally joins between the upper portion of the support pile and the lower portion of the support column using a joint socket having a plurality of gap adjusting means for positioning the diameter tube main body and the steel material,
The different-diameter cylinder main body is provided at a lower cylinder that can be packaged on the upper part of the lower steel material, an upper cylinder that can be packaged on the lower part of the upper steel material, and a boundary between the lower cylinder and the upper cylinder positioned on the same axis. And integrated shelf board,
An adjustment gap is formed between at least one of the lower cylinder and the upper cylinder formed in different diameters, and a peripheral surface of either the upper or lower steel material,
When the joint socket is sheathed across the lower steel and the upper steel, the joint socket is positioned by interposing a shelf between the upper end of the lower steel and the lower end of the upper steel,
The plurality of gap adjusting means holds the horizontal position and the standing angle of the upper steel material adjusted in the range of the adjustment gap,
Steel joint structure.   The inner diameter of the lower cylinder of the joint socket is larger than the inner diameter of the upper cylinder, and at least a part of the lower cylinder is provided with a plurality of gap adjusting means. The steel structure according to claim 1, wherein the surface can be pressed.   The inner diameter of the upper cylinder of the joint socket is larger than the inner diameter of the lower cylinder, and at least a part of the upper cylinder is provided with a plurality of gap adjusting means. The steel structure according to claim 1, wherein the surface can be pressed.   4. The dimensional relationship in which either one of the upper cylinder and the lower cylinder of the joint socket is circumscribable to either the upper or lower steel material. 5. Steel joint structure.   The steel material joining structure according to any one of claims 1 to 4, wherein the plurality of gap adjusting means are a plurality of fixed adjusting bolts screwed to a part of the different-diameter cylindrical main body.   The tension material is stretched along the axial direction between the outer peripheral surface of the upper and lower steel materials and the outer peripheral surface of the joint socket, according to any one of claims 1 to 5, Bonding structure of steel materials described.   The lower steel material is any one of steel pipe, column material, or H-section steel, the upper steel material is any one of steel pipe, column material, or H-section steel, and the lower or upper steel material is the same type. The steel material joining structure according to any one of claims 1 to 6, wherein the steel material is a combination of steel materials or a combination of different steel materials.   The steel structure according to claim 1, wherein the lower steel material is a support pile, and the upper steel material is a support column.

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