JP6523786B2 - Elevated structure and method for constructing the same - Google Patents

Description

  The present invention relates to an elevated structure and a method of constructing the same.

For example, an elevated structure such as a pier or a horizontal pier is known, in which an upper structure is provided by a floor plate or the like on a post with a pile driven into the ground as a pillar (for example, Patent Document 1, Patent Document 2, Patent Document 3).
Patent Document 1 discloses a concentrically arranged jointed rebar having a diameter larger than that of a foundation pile manufactured on the ground near a factory or site, and an inner diameter larger than the diameter of the jointed rebar and covering the bar Of the precast concrete beam member on which a number of joint members consisting of outer steel pipes arranged in advance are attached so that the joint reinforcing bars and the outer steel pipes cover the pile heads of the foundation piles, There is described an elevated structure and a method for constructing the same, which is fixed by filling a filler such as concrete or mortar in a gap to form a joint, and then installing a floor slab, surface layer concrete or the like on the top.
In Patent Document 2, a jacket structure, which is a three-dimensional steel pipe truss structure in which a steel pipe leg covering a steel pipe pile is joined by a diagonal member or a horizontal member, is manufactured at the factory, and fixedly connected with the steel pipe pile installed on the seabed. An elevated structure to be constructed and a method of its construction are described.
Patent Document 3 describes an elevated structure in which a steel beam is bolted to a socket member fitted to a pile head of a steel pipe pile to construct an upper structure, and a construction method thereof.

Unexamined-Japanese-Patent No. 2000-248526 JP, 2005-133485, A Japanese Patent Laid-Open No. 2000-257006

Although the technique described in Patent Document 1 uses a precast concrete member, it needs to be filled with a filler such as concrete or mortar at the time of joining, so the work period becomes long and the workability is inferior. There is.
The jacket structure described in Patent Document 2 has a rigidity enhanced by the steel pipe truss structure, and the load of the upper structure can be effectively transmitted to the foundation pile by the truss frame, but it is a large-scale structure, Transportability is poor, such as towing by construction to a construction point or installing using a hoist ship.
The technology described in Patent Document 3 is transportable, but requires an operation of bolting a steel beam to a socket member, so it is inferior in workability and is a work by a person at a high place, and therefore safety It is inferior to.

  The present invention has been made in view of the problems in the above-mentioned prior art, and is an elevated structure which makes it possible to shorten the construction period by facilitating the construction work and facilitating the construction work of the upper structural components. And providing a method for constructing the same.

The invention according to claim 1 for solving the above problems is a pile head block mounted on a pile head and coupled to the pile head;
And a beam block installed between the pile head blocks coupled to two adjacent pile heads.
The pile head block and the beam block are elevated structures coupled by male and female fitting that non-removably mate with each other by moving the beam block downward relative to the pile head block. .

  The invention according to claim 2 is that the one pile head block has a plurality of fitting portions for joining the one beam block so as to be distributed around the central axis of the pile. It is an elevated structure.

  The invention according to claim 3 is that in the case of one pile head block, four fitting portions for joining the one beam block are arranged in four directions around the central axis of the pile. It is the elevated structure of description.

  The invention according to claim 4 is the elevated structure according to any one of claims 1 to 3, wherein male and female fitting between the pile head block and the beam block is a taper fitting.

In the invention according to claim 5, two of the beam blocks are connected in series between one beam,
The front-end | tip part of the said beam block between the said 1 beams is couple | bonded by the male-female fitting mutually fitted non-removably in the horizontal direction mutually by moving relative to an up-down direction. It is the elevated structure of description.

The invention according to claim 6 is a pile head block mounted on a pile head and coupled to the pile head.
And a beam block installed between the pile head blocks coupled to two adjacent pile heads.
The pile head block and the beam block are integrally formed units,
The pile head block and the pile head are coupled by a male-female fitting that non-removably engages with each other by moving the pile head block downward relative to the pile head.
Two of the beam blocks are connected in series between one beam at a position where adjacent units and units connect,
The tip portions of the beam blocks in the one beam are elevated structures connected by male and female fitting that non-removably fit with each other in the horizontal direction by relatively moving in the vertical direction.

  The invention according to claim 7 is the elevated structure according to claim 5 or 6, wherein the male-female fitting of the beam blocks is a taper fitting.

The invention according to claim 8 is the method for constructing an elevated structure according to any one of claims 1 to 7,
Elevated structure where a pile is pressed into the ground by a press machine, the pile head block to which the beam block is connected is suspended by a crane and carried above the pile, and the pile head block is lowered to be connected to the pile head of the pile It is a construction method of a thing.

The invention according to claim 9 is the method for constructing an elevated structure according to claim 5 or claim 6, wherein
When a pile is pressed into the ground by a press machine, the pile head block to which the beam block is connected is suspended by a crane and carried above the pile, and the pile head block is lowered to be connected to the pile head of the pile This is a method of constructing an elevated structure in which the leading end of the beam block to be lowered is fitted and coupled to the leading end of the beam block constructed earlier.

The invention according to claim 10 uses a work vehicle provided with the crane and the press-fit machine, and the work vehicle has a frame portion horizontally projecting from its traveling means, and a tip end side of the frame portion. A chuck device which is raised and lowered by the elevating mechanism installed , securing the traveling surface of the work vehicle on the elevated structure by the construction method of the elevated structure, and using the weight of the work vehicle as a reaction force; The construction method of an elevated structure according to claim 8 or 9, wherein the pile is gripped by the chuck device and is pressed into the ground located below the outer region of the traveling surface by the traveling means.

  According to the present invention, the upper structural components of the elevated structure are connected by male-female fitting in which the blocks are fitted in a non-removable manner in the horizontal direction by relatively moving the blocks in the vertical direction. The bonding workability is good, the construction work is facilitated, and the construction work period is shortened.

It is a perspective view showing the construction scenery of the elevated structure concerning one embodiment of the present invention. It is the perspective view which showed the steel pipe pile of the elevated structure which concerns on one Embodiment of this invention, a pile head block, and the arrangement | positioning by which the beam block is built. It is a disassembled perspective view which shows the steel pipe pile which concerns on one Embodiment of this invention, the pile-head block couple | bonded with the pile head, and the beam block couple | bonded with the pile-head block. It is a disassembled state side view (a) and a combined state side view (b) showing a steel pipe pile concerning one embodiment of the present invention, and a pile head block joined to the pile head, and a lower end portion of the pile head block is a female Indicates a configuration that is a type. It is a disassembled state side view (a) and combined state side view (b) showing a steel pipe pile concerning one embodiment of the present invention, and a pile head block joined to the pile head, and a lower end part of a pile head block is male Indicates a configuration that is a type. The top view (a) which shows the adjacent pile head block which concerns on one Embodiment of this invention, and two beam blocks connected therebetween, A-A sectional view (b) of a beam block, A of a pile head block A cross-sectional view (c), a B-B cross-sectional view of a first type beam block (tip male type) (d), and a B-B cross-sectional view of a second type beam block (tip tip female type) (e) It is. It is a perspective view which shows the site | part in which the brim-like member of the steel pipe pile based on one Embodiment of this invention was provided.

  An embodiment of the present invention will be described below with reference to the drawings. The following is one embodiment of the present invention and does not limit the present invention.

  The construction scenery of the elevated structure by the construction method of one Embodiment is shown in FIG. In FIG. 2, the steel pipe pile P (P11-P13, P21, 22, P31, P32) which is a basic element of an elevated structure, the pile head block H, and the beam block M are shown by the arrangement | positioning constructed | assembled. FIG. 3 shows one steel pipe pile P, a pile head block H coupled to the pile head, and a beam block M (Mm, Mf) coupled to the pile head block.

  The pile head block H rests on the pile head of the steel pipe pile P and is coupled to the pile head. As shown in FIGS. 4 and 5, the pile head block H is coupled to the steel pipe pile P by male and female fitting that is nonremovably fitted in the horizontal direction by moving downward with respect to the pile head of the steel pipe pile P. Specifically, as shown in FIG. 4, the pile head block H is provided with a recess H11 opening downward, and the recess H11 is coupled by male and female fitting that is externally fitted to the pile head of the steel pipe pile P. Or as shown in FIG. 5, convex part H12 which protrudes downward to pile head block H is provided, and convex part H12 couple | bonds together by male-female fitting with which it is internally fitted by the pile head of steel pipe pile P. As shown in FIG. A taper for guiding the central axis of the pile head block H to the central axis of the steel pipe pile P is attached to the circumferential surface of the concave portion H11 and the convex portion H12.

  As shown in FIG. 3, in the present embodiment, four beam blocks M can be coupled to one pile head block H. At the outer peripheral portion of the pile head block H, a fitting portion H2 for connecting the base end portion of the beam block M is formed. As shown in FIG. 3, one pile head block H has a plurality of fitting portions H2 for connecting one beam block M so as to be distributed around the central axis of the pile. In this embodiment, one pile head block H has four fitting portions H2 for connecting one beam block M so as to be arranged in four directions around the central axis of the pile.

The fitting portion H2 is a male type, and is formed to project radially outward on the outer peripheral portion of the pile head block H, and a female fitting portion M2 to be fitted to this is formed at the base end portion of the beam block M ing.
As shown in FIG. 1, FIG. 2 and FIG. 6 (a), the beam block M is bridged between the pile head blocks H, H connected to the two adjacent pile heads. In the present embodiment, two are connected in series between one beam. The end portions of the beam blocks M, M between the beams are also male-female fitting. A male fitting portion M1 is formed at the tip of a first type (female-male type) beam block M-m. A female fitting portion M3 is formed at the tip of the second type (female-female type) beam block Mf.

FIGS. 6 (b) and 6 (c) are cross-sectional views along the line A-A showing male and female fitting portions of the pile head block H and the beam block M. FIG. As shown in FIG. 6 (c), the fitting portion H2 of the pile head block H is tapered so that the width becomes narrower toward the upper position. As shown in FIG. 6 (b), a corresponding taper is attached to the fitting portion M2 of the beam block M. Therefore, the pile head block H and the beam block M are engaged with each other by moving the beam block M downward relative to the pile head block H, and since the fitting is a taper fitting, it is rigid with high accuracy. Bond to
Further, as shown in FIG. 2, FIG. 3 and FIG. 6A, the fitting portion H2 is formed wider at the outer end, and correspondingly the fitting portion M2 is formed wider at the back There is. Therefore, the pile head block H and the beam block M are coupled by a male-female fitting that is nonremovably fitted to each other horizontally by relatively moving the beam block M downward with respect to the pile head block H.

FIGS. 6 (d) and 6 (e) are B-B cross-sectional views showing male and female fitting portions of the first type beam block M-m and the second type beam block M-f. As shown in FIG. 6 (d), the fitting portion M1 of the first type beam block M-m is tapered so that the width becomes wider toward the upper position. As shown in FIG. 6 (e), a corresponding taper is attached to the fitting portion M3 of the second type beam block M-f. Therefore, the tip portions of the first type beam block M-m and the second type beam block M-f between one beam are engaged with each other by relative movement in the vertical direction, and the engagement is a taper engagement Because of this, it is strongly coupled precisely.
Further, as shown in FIG. 2, FIG. 3 and FIG. 6A, the fitting portion M1 is formed wider at the outer end, and correspondingly the fitting portion M3 is formed wider at the back There is. Therefore, the male-female fitting in which the leading end portions of the first type beam block M-m and the second type beam block M-f between one beam move horizontally relative to each other by relative movement in the vertical direction. Join together. In the present embodiment, since the second type beam block Mf is configured as the lower receiving side, the first type beam block M-m is downward relative to the second type beam block Mf. By moving, the two fit together.

In the present embodiment, as shown in FIG. 1 and FIG. 2, a hooked member K is applied as a supporting force reinforcing structure of the steel pipe pile P. The details are shown in FIG.
The hook-shaped member K has the fixing device Ka configured at the upper part of the rod body Kb, and is disposed in a manner such that the steel pipe pile P is inserted into the central opening and is fixed to the steel pipe pile P by the fixing device Ka At the same time, the weir body Kb forms a weir-like open structure around the steel pipe pile P. As shown in FIG. 1, at least the lower end portion of the bowl-shaped member K fixed to the steel pipe pile P is pressed into the ground surface layer, and the ground surface layer is compacted and consolidated by the bowl-shaped member K. A consolidated ground surface layer is connected, whereby a high supporting force against longitudinal load and lateral load on the steel pipe pile P is exerted.
As shown in FIG. 7, the bowl-shaped member K has a structure in which parts divided into a plurality of pieces in the circumferential direction are connected. Although FIG. 7 illustrates the structure in which the bowl-like member K is divided into three in the circumferential direction, and FIGS. 1 and 2 illustrate the structure in which the bowl-like member K is divided into two in the circumferential direction as an example, the number of divisions is arbitrary is there. The divided parts are mutually fastened by fasteners such as bolts, and a cylindrical fixing collar K1 is formed at the upper end of the bowl-shaped member K. The divided edges K3 and K3 of the fixing collar K1 are formed so as to project radially outward, face to face with each other, and are clamped or released by the cylinder device K2 attached thereto. It is considered possible to In addition, division | segmentation edge part K3 and K3 are continued to the collar main-body part Kb, and fasteners, such as a volt | bolt, are set there. The cylinder device K2 is provided in each divided portion, and a pressure oil pipe K4 extended from above is distributed and connected by the distributor K5, and remote control is enabled. By tightening with the cylinder device K2, the inner diameter of the fixing collar K1 is reduced and deformed, and the outer peripheral surface of the steel pipe pile P is tightened to fix the hooked member K and the steel pipe pile P. By releasing the cylinder device K2, the bowl-shaped member K can be moved up and down relative to the steel pipe pile P.
In order to fix the pile head block H to the steel pipe pile P, a fixing device Ka provided with the above-mentioned fixing collar K1 and the cylinder device K2 may be applied. For example, a configuration can be implemented in which the fixing device Ka (one obtained by removing the rod body portion Kb from the bowl-shaped member K) is provided to be connected to the lower end of the pile head block H. In this case, when the fixing device Ka is fixed to the steel pipe pile P, the pile head block H connected to the fixing device Ka is also fixed so as not to move up and down. As another configuration example, the pile head block H is divided into a plurality of parts in the circumferential direction in the same manner as the bowl-like member K, and a fixing device similar to the fixing device Ka is configured at the lower end of the pile head block H is there.
As mentioned above, although the structure by which the whole brim-like member K was divided into plurality in the circumferential direction was explained, the coffin main-body part is not divided in the circumferential direction but integrally formed, and the composition which connected this to fixing device Ka is implemented It can also be done.
The connection between the fixing device Ka and the cocoon main body or the pile head block H integrally formed without being divided in the circumferential direction may be configured so as not to restrict the diameter expansion deformation of the fixing collar K1 of the fixing device Ka. preferable. The following structure can be presented as a structure for that purpose. That is, in the case of an eyebrow body, a projection projecting upward from the upper end is provided, and in the case of a pile head block H, a projection projecting downward from the lower end is provided, and such projections and divided edges K3, K3 A hole for inserting the piston rod of the cylinder device K2 is provided, the projection is held between the divided edge portions K3 and K3, and the piston rod of the cylinder device K2 is inserted and connected together with the divided edge portions K3 and K3. .

Next, a method of constructing an elevated structure will be described.
The work vehicle E used in the present construction method is a combined work vehicle provided with a crane E5 and a press-fitting machine. The press-fit machine is supported by a base machine (vehicle portion not including a working machine) E0 including a traveling means E1 via a frame portion E2. The work vehicle E has a frame portion E2 projecting horizontally from the traveling means E1. The frame portion E2 is a long member and extends long apart from the traveling means E1 in the horizontal direction. The base end of the frame portion E2 is integrally connected to the chassis portion of the traveling means E1. A chuck device E3 to be moved up and down is installed on the tip end side of the frame portion E2. The chuck device E3 has a function of holding the steel pipe pile P and a function of rotating the held steel pipe pile P. More specifically, the chuck device E3 is supported by the mast E4 via an elevating mechanism, and the mast E4 is supported by the frame portion E2 via a slide base that enables sliding movement in the front-rear direction. The work vehicle E has a function of pivoting the upper portion including the crane E5 and the operation room E6 with respect to the lower traveling means E1.

Materials constituting the elevated structure are transported by the transport vehicle F to the construction site.
As a work procedure, first, the steel pipe pile P is gripped by the chuck device E3 of the work vehicle E, and the steel pipe pile P is rotationally pressed into the ground. The weight of the work vehicle E is used as a reaction force at the time of press-fitting of the steel pipe pile P, and the steel pipe pile P is gripped by the chuck device E3 and rotary press-fit to the ground located below the outer region of the traveling surface by the traveling means E1. Do. In the scene shown in FIG. 1, the upper surface of the installed floor slab member G is bridged over the pile head block H and the beam block M of the existing elevated structure and constitutes the traveling surface. At the start of construction of this elevated structure, a traveling surface is secured by another structure.

When the upper end of the steel pipe pile P is knocked down to a prescribed level, the chuck device E3 is once retracted, and the cage K is lowered to the ground surface by the crane E5 in a mode in which the steel pipe pile P is inserted into the cage K When the steel pipe pile P is pulled out by an amount equivalent to the embedded depth of the member K, the fixing device Ka is tightened to fix the caged member K to the steel pipe pile P, and the upper end of the steel pipe pile P is again knocked down to a prescribed level At the same time, at the same time, at least the lower end portion of the bowl-shaped member K is pushed into the ground surface layer by press-fitting the bowl-shaped member K.
As described above, the press-fitting of the wedge-shaped member K and the steel pipe pile P is completed, and the chuck device E3 is retracted.
Next, the pile head block H to which the required beam block M is connected is suspended by the crane E5 and carried above the steel pipe pile P, and the pile head block H is lowered and bonded to the pile head of the steel pipe pile P.
For example, it is assumed that the steel pipe pile P11 is the first one of the steel pipe piles P11 to P13, P21, P22, P31, and P32 shown in FIG.
The steel pipe pile P11 is driven, and the pile head block H to which the beam block M necessary for the pile head is connected is joined.
Thereafter, the steel pipe pile P12 is driven into a position adjacent to the steel pipe pile P11 in the X direction shown in FIG. The pile head block H with the necessary beam block M connected to the pile head of the steel pipe pile P12 is suspended by a crane E5 and carried above the steel pipe pile P12, and the pile head block H is lowered and joined to the pile head of the steel pipe pile P12 Do. At that time, the leading end of the descending beam block M-m is fitted and coupled to the leading end of the beam block M-f, which was previously constructed on the pile head of the steel pipe pile P11. Therefore, the distance between the piles to be driven and the distance between the central axes of the two pile head blocks H and H connected via the beam block Mm and the beam block Mf coincide within a predetermined tolerance. It is designed and constructed.
Similarly, the steel pipe pile P13 is driven at a position adjacent to the steel pipe pile P12 in the X direction, and the beam block M and the pile head block H are constructed.

On the other hand, the steel pipe pile P21 is driven into a position adjacent to the steel pipe pile P11 in the Y direction orthogonal to the X direction. The pile head block H with the necessary beam block M connected to the pile head of the steel pipe pile P21 is suspended by the crane E5 and carried above the steel pipe pile P21, and the pile head block H is lowered and joined to the pile head of the steel pipe pile P21 Do. At that time, the leading end of the descending beam block M-m is fitted and coupled to the leading end of the beam block M-f, which was previously constructed on the pile head of the steel pipe pile P11.
Similarly, the steel pipe pile P31 is driven at a position adjacent to the steel pipe pile P21 in the Y direction, and the beam block M and the pile head block H are constructed.
Two beam blocks M-m, M-m connected to the pile head block H coupled to the pile head of the steel pipe pile P22, while descending, are beam blocks M- each previously installed on the pile head of the steel pipe pile P12, P21 f, it fits in the tip part of Mf.
In addition, the wedge-shaped member K is applied to each steel pipe pile P as mentioned above.

As described above, the elevated structure including the steel pipe pile P, the pile head block H, and the beam block M is expanded in the X direction and the Y direction orthogonal thereto.
Specifically, for the pile head block H and the beam block M constructed on the steel pipe pile P pressed into the ground as the expansion method, the work vehicle E is provided by passing the floor slab member G thereon. Implement a traveling surface expansion process to expand the traveling surface of the vehicle. Work vehicle E is advanced on the traveling surface expanded in the previous traveling surface expansion step, and steel pipe pile P is press-fit by the press-in machine of working vehicle E into the ground located below the outer region of the expanded traveling surface. At the same time, the overhead extension process of constructing the pile head block H and the beam block M on the steel pipe pile P is performed.
An elevated structure is constructed in the plan area by alternately repeating the traveling surface expansion process and the elevated expansion process described above a predetermined number of times.
Pavement I is applied to the upper surface of the floor slab member G.
Since the pile head block H and the beam block M are separated, it is easy to load the pile head block H and the beam block M on the transport vehicle F as shown in FIG. It is easy to secure the pile head block H, the beam block M and the floor slab member G necessary for the extension of the elevated structure by the transport vehicle F to the construction site in a mutually equal number of pairs. Yes, it is efficient.

(Modification other)
In the following, modifications to the above-described embodiment and supplementary items involved in the implementation of the present invention will be described.

In the above embodiment, after the pile head block H and the beam block M are separated, they are transported to the construction site, and the beam block M necessary for the pile head block H is coupled by male and female fitting. The pile head block H and the beam block M coupled to each other are hung on the crane.
In the case where the size is reduced to the portable size, the pile head block H and the beam block M may be manufactured at the factory as an integrally formed unit and transported to a construction site. In this case, the pile head block H and the beam block M are integrally formed units, and two beam blocks M are connected in series between one beam at a position where the adjacent unit and unit are connected, The tip portions of the beam blocks M and M in the above can be combined by male and female fitting that non-removably fits with each other in the horizontal direction by relatively moving in the vertical direction.

In the above embodiment, the beam block M necessary for the pile head block H is coupled by male and female fitting in consideration of work efficiency, and then the pile head block H and the beam block M coupled to each other are suspended from the crane However, it is also possible to connect the pile head block H to the pile head by suspending and lowering the pile head block H to the crane and to connect the pile head block H by hanging the beam block M to the crane and lowering it later.
In addition, after connecting the beam block M to the pile head block H and then connecting the pile head block H to the pile head by suspending them together with the crane and lowering them, another beam block M is additionally piled. It can also be attached to the head block H. That is, by suspending and lowering another beam block M to a crane, it can also be connected to the empty fitting portion H2 of the pile head block H already connected to the pile head and the beam block M at the tip. In the above embodiment, up to four beam blocks M can be coupled to one pile head block H. Therefore, when the number of beam blocks M is three or less, the beam block M can be additionally added to the pile head block H Can be combined with

  Four beam blocks are connected to the pile head block connected in four directions in the above embodiment. Three beam blocks may be coupled to the pile head block disposed at the side edge of the planning area, or four beam blocks may be coupled. Two beam blocks may be coupled to the pile head block disposed at the corners of the planning area, or three or four beam blocks may be coupled. Beam blocks that do not couple to other beam blocks can be used as cantilevers.

  In the said embodiment, although the case where it extended in all directions (X direction and Y direction) was demonstrated, you may construct so that a pile may be arranged only in 1 row. In that case, although the beam block is connected in the expansion direction, the beam block as a cantilever described above may be connected to the pile head block in the direction orthogonal to the expansion direction. A deck member can be installed between adjacent cantilevers.

  As a method of increasing the reaction force when press-fitting steel pipe pile P by work vehicle E, lifting of work vehicle E using a method of attaching a weight to work vehicle E or using a connecting tool such as a hook to the existing pile head block H The method of connecting can be implemented to prevent the In the latter case, the pile head block H is also fixed to the steel pipe pile P using the fixing device Ka described above. As a result, the work vehicle E to the steel pipe pile P are firmly connected, and a high reaction force can be obtained.

  In the above embodiment, two beam blocks are connected in series between one beam, but one beam block may be installed between one beam. In this case, a beam block having the fitting portion M2 at both ends is configured, and a working process is performed to connect the adjacent two pile head blocks H and H to the fitting portions H2 and H2. This can be done by first joining the two pile head blocks H, H to the pile head and later lowering the beam block having the fitting portion M2 at both ends.

It goes without saying that the male and female in the male and female fitting described above may be appropriately replaced.
In the above-mentioned embodiment, although the composition which can connect four beam blocks M to one pile head block H was carried out, the beam block which can be connected to one pile head block H can be changed suitably.
Also with respect to a combination placed on and coupled to the pile head such as the pile head block H described above, the height to be coupled to the pile head may be adjusted by applying the fixing device (Ka) described above. it can. That is, after adjusting the height in the range of the fitting margin in the vertical direction, the height coupled to the pile head can be adjusted by fixing with the fixing device.

E Work vehicle E1 Driving means E2 Frame part E3 Chuck device E4 Mast E5 Crane E6 Operation room F Transport vehicle G Floor plate member H Pile head block I Pavement M Beam block P Steel pipe pile

Claims (10)

A pile head block mounted on the pile head and coupled to the pile head;
And a beam block installed between the pile head blocks coupled to two adjacent pile heads.
An elevated structure in which the pile head block and the beam block are coupled by a male-female fitting which is nonremovably fitted to each other horizontally by relatively moving the beam block downward with respect to the pile head block.   The elevated structure according to claim 1, wherein one pile head block has a plurality of fitting portions for connecting the one beam block so as to be distributed around the central axis of the pile.   The elevated structure according to claim 1, wherein one of the pile head blocks has four fitting portions for coupling one of the beam blocks so as to be arranged in four directions around a central axis of the pile.   The male / female fitting of the said pile-head block and the said beam block is a taper fitting, The elevated structure as described in any one of Claims 1-3. In the beam block, two are connected in series between one beam,
The front-end | tip part of the said beam block between the said 1 beams is couple | bonded by the male-female fitting mutually fitted non-removably in the horizontal direction mutually by moving relative to an up-down direction. Elevated structure as described. A pile head block mounted on the pile head and coupled to the pile head;
And a beam block installed between the pile head blocks coupled to two adjacent pile heads.
The pile head block and the beam block are integrally formed units,
The pile head block and the pile head are coupled by a male-female fitting that non-removably engages with each other by moving the pile head block downward relative to the pile head.
Two of the beam blocks are connected in series between one beam at a position where adjacent units and units connect,
The elevation structure in which the front end portions of the beam blocks in the one beam are coupled with each other by male-female fitting that non-removably engages with each other in the horizontal direction by relatively moving in the vertical direction.   The elevated structure according to claim 5 or 6, wherein the male-female fitting of the beam blocks is a taper fitting. A method of constructing an elevated structure according to any one of claims 1 to 7, which is:
Elevated structure where a pile is pressed into the ground by a press machine, the pile head block to which the beam block is connected is suspended by a crane and carried above the pile, and the pile head block is lowered to be connected to the pile head of the pile How to build things. A method of constructing an elevated structure according to claim 5 or 6, wherein
When a pile is pressed into the ground by a press machine, the pile head block to which the beam block is connected is suspended by a crane and carried above the pile, and the pile head block is lowered to be connected to the pile head of the pile And a method of constructing an elevated structure in which the leading end of the descending beam block is fitted and coupled to the leading end of the beam block constructed in advance. A work vehicle provided with the crane and the press-fitting machine is used, and the work vehicle is moved up and down by a frame portion horizontally projecting from the traveling means and an elevating mechanism installed on the tip side of the frame portion. A chucking device for securing the traveling surface of the work vehicle on the elevated structure by the construction method of the elevated structure, utilizing the weight of the work vehicle as a reaction force, and gripping the pile by the chuck device to, how to construct of claim 8 or elevated structure according to claim 9 pressed into the ground located below the outer region before Kihashi line plane.

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