JP2016180250A - Suspension frame and structure construction method using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suspension frame which is not easily affected by meteorological and marine conditions and can easily adjust a height of a precast member relative to a head part of a columnar body, and to provide a structure construction method using the suspension frame.SOLUTION: A suspension frame 30 includes: a suspension frame body 33 suspended and supported from a crane; suspension tools 34, 34... for making a precast member 2 arranged below the suspension frame body 33 be supported by the suspension frame body 33; support legs 35, 35... downwardly protruded respectively at positions matching column insertion parts 7 of the suspension frame body 33 and adjustable in height. In the suspension frame, the support leg 35 is supported on the upper surface of a columnar body 1 inserted in the column insertion part 7, and in a state of supporting the precast member 2, the suspension frame body 33 is supported by the columnar body 1 while interposing the support leg 35 and being adjustable in height.SELECTED DRAWING: Figure 2

Description

  The present invention mainly provides a suspension frame for transporting a ready-made member such as a precast concrete material constituting the beam to the columnar body head when constructing a structure such as a pier in which the beam is supported by a plurality of columnar bodies. It is related with the construction method of the structure using it.

  Conventionally, a structure such as a pier where a beam is supported by a plurality of columnar bodies such as piles, etc., after placing each columnar body on the bottom of the water, etc., steel frames are installed between these adjacent columnar bodies, reinforcing bars are arranged, etc. In addition, the formwork was formed between the columnar bodies using the support work supported by the columnar bodies, the beams were formed by hitting concrete in the field, and the beams and the columnar body heads were joined .

  However, in such a construction method, the beam is made of cast-in-place concrete, so installation of work scaffoldings and supporters for each work, placement of reinforcing bars and steel frames, assembly / disassembly of formwork, placement of concrete, All work such as curing had to be performed at the construction site, and there was a problem that the influence of sea conditions and weather conditions was great and the construction period was prolonged.

  Therefore, in view of such problems, conventionally, one or more precast concrete prefabricated members constituting the beam are manufactured in advance at an on-site factory or production yard, and transported to a construction site, and the columnar body head In this state, a method is used in which the ready-made member is supported, and in that state, concrete is placed between the columnar body head and the ready-made member to join them (see, for example, Patent Document 1).

  In this type of construction method, a through-hole into which a columnar body head is inserted is formed in a ready-made member, and a support member such as a steel frame is protruded from the inner peripheral surface of the through-hole. The lower surface is received by a bracket protruding from the upper surface of the columnar body or the outer peripheral surface of the columnar body, and a ready-made member is temporarily supported by the columnar body, and reinforcing bars are placed and connected in that state, and concrete is placed in the through hole. Like to do.

  On the other hand, in order to install this ready-made member on the columnar body head, the ready-made member is lifted by a crane ship or a crane installed on land, and the steel lower surface of the ready-made member is moved to the upper surface of the columnar body or the outer peripheral surface of the columnar body by crane operation. It is made to move to the position where it is placed on the protruding bracket.

Japanese Patent Laid-Open No. 8-100144

  However, in the conventional technology as described above, the height adjustment when the ready-made member is installed on the columnar body head must be performed by crane operation, and it is difficult to perform fine height adjustment. However, there is a problem that it is easily affected by weather and sea conditions.

  Further, in the conventional technology, since the support member such as a steel frame of a ready-made member is supported by a bracket fixed to the upper surface portion of the columnar body or the outer peripheral surface of the columnar body, in order to install the ready-made member at a desired height The height of the part supporting each ready-made member of each columnar body must be the same, so it is necessary to install each columnar body or bracket with high accuracy, and the work is complicated and the construction cost and construction period are long. There was a problem of increasing.

  Furthermore, in the conventional technology, when the ready-made member is composed of, for example, a plurality of precast concrete parts, it is necessary to perform installation on the columnar body for each part. There was a problem.

  Therefore, in view of such conventional problems, the present invention is a suspension frame that is not easily affected by weather and sea conditions, and that allows easy adjustment of the height of a ready-made member with respect to a columnar body, and a method for constructing a structure using the same. It was made for the purpose of provision.

  The feature of the invention according to claim 1 for solving the conventional problems as described above is that each of the ready-made members having column insertion portions vertically passing through the columns aligned with the positions of the plurality of standing columnar bodies is provided. A suspension frame for transferring by a crane to a position where a columnar body is inserted into the column insertion portion, the suspension frame body suspended by the crane, and the ready-made member disposed under the suspension frame body A suspension tool supported by the suspension frame body, and a height-adjustable support leg protruding downward at a position aligned with the column insertion portion of the suspension frame body, and inserted into the column insertion portion The support leg is supported on the upper surface of the columnar body, and the suspension frame main body is supported by the columnar body via the support leg so that the height can be adjusted while supporting the ready-made member.

  According to a second aspect of the present invention, in addition to the configuration of the first aspect, the support leg portion is fixed to the lower end of the movable portion, and an extendable movable portion whose upper end is fixed to the suspension frame main body. And a height adjusting jack for adjusting the height of the movable portion.

  The feature of the invention described in claim 3 is that each of the columnar bodies is inserted into the column insertion section with a ready-made member having a column insertion section that penetrates up and down in alignment with the positions of the plurality of standing columnar bodies. In the construction method of the structure in which the columnar body and the ready-made member are joined to each other and the columnar body and the ready-made member are integrated in this state, the suspension frame main body suspended by the crane and the suspension A suspension tool for supporting the ready-made member arranged below the frame body on the suspension frame body, and a height-adjustable support leg protruding downward at a position aligned with the column insertion portion of the suspension frame body The suspension frame is lifted by a crane in a state where the ready-made member is suspended under the suspension frame body, the columnar body is inserted into the column insertion portion, and the support leg portion is Placed on top of the columnar body, A method for constructing a structure in which a ready-made member is supported on the columnar body via the suspension frame, and then the height of the support leg is adjusted to adjust the relative height between the columnar body and the ready-made member. It is in.

  The feature of the invention described in claim 4 is that, in addition to the configuration of claim 3, the ready-made member is a pair of main beam members made of precast concrete having a recessed portion for a recessed notch-shaped pile insertion portion opened on a side surface; A precast concrete transverse beam member arranged between the main beam members separately, separately disposed on the side opening side of the pile insertion portion recess, and the pile insertion portion recess Connecting the main beam member and the cross beam member and forming the column insertion portion by connecting the opening edges on both side surfaces and the cross beam member via detachable mold and joint couplers, and the ready-made member Is suspended from the suspension frame, the columnar body is inserted into the column insertion portion, and the support leg is placed on the upper surface of the columnar body, whereby the main beam member and the transverse beam member are Before body It is to be supported through the hanging frame.

  As described above, the suspension frame according to the present invention inserts a ready-made member having a column insertion portion that penetrates up and down in alignment with the positions of a plurality of standing columnar bodies, and each columnar body is inserted into the column insertion portion. A suspension frame for transporting by a crane to a position where the suspension frame is moved, a suspension frame main body suspended by the crane, and a suspension tool for supporting the ready-made member disposed under the suspension frame main body on the suspension frame main body And a height-adjustable support leg projecting downward at a position aligned with the column insertion portion of the suspension frame body, and the support leg is disposed on the upper surface of the columnar body inserted into the column insertion portion. In addition to the original function of the suspension frame, the suspension frame main body is supported by the columnar body through a support leg so that the ready-made member is supported in the state of supporting the ready-made member. As a structure to stably hold the body head And ability, hardly influenced by weather and sea conditions conditions, can be easily performed height adjustment of the shelf member with respect to the columnar body for each pillar.

  Further, in the present invention, the support leg portion includes a telescopic movable portion whose upper end is fixed to the suspension frame main body, a lower leg portion fixed to the lower end of the movable portion, and a height of the movable portion. By providing the height adjusting jack for adjusting the height, the height can be easily adjusted for each support leg.

  Furthermore, in the construction method of the structure according to the present invention, each columnar body inserts a ready-made member having a column insertion portion that penetrates up and down in alignment with the positions of a plurality of standing columnar bodies. In the construction method of a structure in which the columnar body and the ready-made member are joined to each other temporarily and the columnar body and the ready-made member are integrated in this state, a suspension frame body suspended by the crane, A suspension for supporting the ready-made member disposed under the suspension frame body on the suspension frame body, and a height-adjustable support projecting downward at a position aligned with the column insertion portion of the suspension frame body A suspension frame provided with a leg, the suspension frame is lifted by a crane in a state where the ready-made member is suspended under the suspension frame body, the columnar body is inserted into the column insertion portion, and the support leg On the upper surface of the columnar body The ready-made member is supported by the columnar body via the suspension frame, and then the height of the support leg is adjusted, and the relative height between the columnar body and the ready-made member is adjusted. Further, it is possible to easily adjust the position of the ready-made member with respect to the columnar body head by absorbing the error for each columnar body caused by the accuracy when the columnar body is installed.

  Further, in the present invention, the ready-made member includes a pair of precast concrete main beam members each having a recessed portion for a pile insertion portion that is open on a side surface, and a precast parallel to each other disposed between the main beam members. Separately provided with a concrete transverse beam member, the transverse beam member is disposed on the side opening side of the concave portion for the pile insertion portion, and both side opening edges of the concave portion for the pile insertion portion and the lateral beam member can be attached and detached. The main beam member and the cross beam member are connected to each other through a connecting device that also serves as a formwork, and the column insertion portion is formed, the ready-made member is suspended from the suspension frame, and the columnar body is The main beam member and the horizontal beam member are supported by the columnar body via the suspension frame by being inserted into the column insertion portion and by placing the support leg portion on the upper surface of the columnar body. More, it is possible to respectively installed in separately fabricated precast products simultaneously columnar body head, thereby shortening the work period.

It is a top view which shows the hanging frame used for this invention. It is a partial expanded side view which shows the support leg part in FIG. (A) is a top view which shows an example of a ready-made member, (b) is the YY sectional view taken on the line which shows a column insertion part part same as the above. It is sectional drawing which shows the state of the transfer process of a ready-made member in the construction method of the structure using the hanging frame which concerns on this invention. It is sectional drawing for demonstrating a suspension frame installation same as the above, and a height adjustment process. (A) is a top view of the structure constructed | assembled by this invention, (b) is the XX sectional drawing.

  Next, an embodiment of the hanging frame according to the present invention will be described based on the embodiment shown in FIGS. In the figure, reference numeral 1 is a columnar body such as a pile placed on the bottom of the water, reference numeral 2 is a prefabricated member constituting a beam supported by each of the columnar bodies 1, 1. It is a hanging frame for hanging and holding.

  For example, as shown in FIG. 3, the ready-made member 2 includes a pair of precast concrete main beam members 5, 5 arranged in parallel to each other and a precast concrete structure spanned between the main beam members 5, 5. A column insertion portion 7 is provided which includes horizontal beam members 6 and 6 and penetrates in the vertical direction where the columnar head 1a is inserted at a portion where the main beam members 5 and 5 and the horizontal beam members 6 and 6 intersect.

  The suspension frame 30 according to the present invention is used when lifting this kind of ready-made member 2 with a crane and installing it on the columnar head 1a, and is suspended by the crane as shown in FIG. The suspension frame body 33, the suspension members 34, 34... For supporting the ready-made member 2 disposed below the suspension frame body 33 on the suspension frame body 33, and the column insertion portion 7 of the suspension frame body 33 are aligned. Supporting leg portions 35, 35 projecting downward are provided.

  The suspension frame main body 33 includes a plurality of vertical frame members 50, 50... Arranged in parallel at a desired interval, and a plurality of horizontal frame members arranged so as to cross the vertical frame members 50, 50. 51, 51, and vertical frame members 50, 50 ... and horizontal frame members 51, 51 are assembled to form a lattice frame shape.

  Each of the vertical frame members 50, 50 ... has a pair of steel members having flange portions 52a, 52b projecting outward from the upper and lower ends of the grooved steel or the like, and facing the flange portions 52a, 52b outward. 52, 52 and a plurality of connecting members 53, 53... For connecting the steel members 52, 52 at a desired interval, and the hanger 34, 34 ... is inserted between the steel members 52, 52. The upper and lower flange portions 52a and 52b can be fixed.

  Further, the pair of vertical frame members 50, 50 arranged on the sides are arranged in parallel with each other in a width aligned with the short width of the main beam members 5, 5 constituting the ready-made member 2. The upper surfaces of the main beam members 5 and 5 are supported at the lower ends of the suspension members 34, 34.

  The hanger 34, 34... Includes a hanger body 54 made of a steel bar or the like having a male screw portion 54 a at the upper end, and an attachment hook portion 55 fixed to the lower end of the hanger body 54. Are inserted between the steel members 52, 52 of the vertical frame members 50, 50... And the nuts 56 are fastened to the upper and lower sides of the male screw portions 54a sandwiching the vertical frame members 50, 50. Are fixed to the vertical frame members 50, 50.

  Each of the horizontal frame members 51, 51 is made of a steel material such as H-shaped steel, and the vertical frame members 50, 50... Are fixed on the upper surface by welding or the like at a desired interval.

  Further, on each horizontal frame member 51, 51, a hanging hook 57 protrudes at an interval in the longitudinal direction of the upper surface portion, and as shown in FIG. 4, the sling wires 31, 31 are attached to the hanging hook 57. The lower end of ... is connected. In the figure, reference numeral 32 denotes a wire fed from the crane.

  The horizontal frame members 51 and 51 are arranged so as to cross over the column insertion portion 7 of the ready-made member 2, and the upper ends of the support leg portions 35 and 35 are aligned with the position of the column insertion portion 7 on the lower surface thereof. It is fixed.

  As shown in FIG. 2, each support leg 35 is fixed to the suspension frame main body 33, that is, the extendable movable part 36 whose upper end is fixed to the lower surface of the horizontal frame members 51 and 51, and the lower end of the movable part 36. The lower leg portion 37 and a height adjusting jack 38 for adjusting the height of the movable portion 36 are provided. By operating the height adjusting jack 38, the height of the supporting leg portions 35 and 35 can be adjusted. It can be done.

  The movable portion 36 includes a flat plate-like fixed plate 60 fixed to the lower surface of the horizontal frame members 51, 51, a plurality of upper slide pieces 61a protruding downward from the lower edge of the lower surface of the fixed plate 60, and each upper slide piece 61a. The lower slide piece 61b is supported so as to be slidable in the vertical direction and the lower end is fixed to the upper end of the lower leg portion 37, and can be expanded and contracted by the vertical movement of the upper and lower slide pieces 61a and 61b.

  The upper and lower slide pieces 61a and 61b are each formed with a guide hole 62 in the shape of a long hole facing up and down, and a fixing bolt 63 passed through the guide hole 62 is fastened to the other slide piece 61a. The relative positions of the upper and lower slide pieces 61a and 61b can be fixed.

  The lower leg portion 37 is configured by a square steel pipe or the like whose upper and lower ends are closed by closing plates 64 and 65 such as steel plates, and rib-shaped reinforcing pieces 66 and 66 are provided on the outer periphery of the lower end portion.

  The height adjusting jack 38 has an upper end fixed to the fixed plate 60 of the movable portion 36 and a lower end fixed to the upper closing plate 64 of the lower leg portion 37, and is supported by the lower leg portion 37 by operating to fix the fixed plate 60. It moves up and down, that is, the movable part 36 is expanded and contracted.

  The aspect of the height adjusting jack 38 is not particularly limited, and may be any of a mechanical type such as a screw type and a ratchet type, a fluid operated type such as a hydraulic type, and a manual type or an electric type. Good.

  Next, a method for constructing a structure using the suspension frame configured as described above will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected and demonstrated to the structure similar to the above-mentioned Example, Code | symbol A comprises structures, such as a pier, code | symbol 1 is columnar bodies, such as a pile, and code | symbol 2 comprises the beam of a structure. The ready-made member and the code | symbol 30 are hanging frames.

  In this structure A, the ready-made member 2 having the column insertion portions 7 that are vertically aligned and aligned with the positions of the plurality of columnar bodies 1, 1. ) Is temporarily inserted so as to be inserted into the column insertion portion 7, and in this state, the columnar body head 1 a and the ready-made member 2 are joined to integrate the columnar body 1 and the ready-made member 2.

  The columnar bodies 1, 1... Are piles constituted by cylindrical steel pipes, and are placed on the water bottom ground to a desired depth of penetration so that the upper end portion protrudes on the water surface B.

  The ready-made member 2 includes precast concrete main beam members 5 and 5 and cross beam members 6 and 6 which are separately manufactured, and the main beam members 5 and 5 and the cross beam members 6 and 6 are respectively columnar body heads. It is joined to 1a.

  Each of the main beam members 5 and 5 is formed in a rectangular parallelepiped shape made of reinforced concrete, and has a recessed portion 7a for a column insertion portion having a recessed shape in which upper and lower and side surfaces are opened at positions aligned with the horizontal beam members 6 and 6 on one side thereof. Are arranged in parallel with the column insertion portion concave portions 7a facing each other.

  Further, reinforcing bars 9 are embedded in the main beam members 5 and 5 in the longitudinal direction and the short direction, and the mechanical joints 10 are fixed to the portions of the reinforcing bars 9 exposed on the inner side surfaces of the column insertion portion recesses 7a. Has been.

  Each of the horizontal beam members 6 and 6 is formed in a rectangular parallelepiped shape made of reinforced concrete, and is between the main beam members 5 and 5 in a position aligned with the column insertion portion recess 7a in the direction between the main beam members 5 and 5. It is arranged to face.

  Reinforcing bars 9 are embedded in the respective transverse beam members 6 and 6 in the longitudinal direction, and mechanical joints 10 are fixed to both ends of each reinforcing bar 9, that is, to end surface portions of the transverse beam members 6 and 6.

  In order to construct the structure A, first, on the land near the construction site, the precast concrete main beam members 5 and 5 and the transverse beam members 6 and 6 respectively manufactured in advance in the factory are placed on the land portion near the construction site. Then, as shown in FIG. 3, the main beam members 5, 5 and the cross beam members 6, 6 are connected by a formwork / connector 8, and the ready-made member 2 is assembled in a lattice plate shape.

  The joint for both formwork 8 is made of a steel material, and includes a flat plate-like connector main body 11 and a pair of attachment pieces 12 that extend obliquely from both side ends of the connector main body 11 and are perpendicular to each other. 12.

  Then, the mounting pieces 12 and 12 of the connecting tool for formwork are respectively connected to the side opening edges of the column insertion portion recesses 7a of the main beam members 5 and 5 and the side surfaces of the side beam members 6 and 6, respectively with bolts 13 and 13. .., The main beam members 5, 5 and the horizontal beam members 6, 6 are connected to each other, and the connector main body 11 forms a partial inner wall of the column insertion portion 7.

  In addition, the formwork / connector 8 is integrally provided with reinforcing pieces 14 and 14 for connecting the mounting pieces 12 and 12 on the back surface of the connector main body 11 so as to project from the main beam portions 5 and 5 and the horizontal beam portion. The shear strength of 6 and 6 is enhanced.

  Next, the suspension frame 30 lifted by the crane is moved onto the assembled ready-made member 2, and the main beam members 5, 5 are attached to the attachment hook portions 55 of the suspension tools 34, 34. As shown in FIG. 4, the ready-made member 2 is lifted by a crane ship or a crane installed on land.

  At that time, the precast concrete main beam members 5, 5 and the horizontal beam members 6, 6 that are separately manufactured are connected to each other by the formwork / connector 8. 5 and 5 and the cross beam members 6 and 6 can be lifted simultaneously.

  And the ready-made member 2 lifted with the crane installed in the crane ship or the land is moved by crane operation, and the columnar body head 1a of each columnar body 1 is inserted into the column insertion part 7 as shown in FIG. At the same time, the support legs 35, 35... Of the suspension frame 30 are placed on the upper surface of the columnar body head 1a.

  As a result, the suspension frame 30 is suspended under the suspension frame 30 even when the suspension frame body 33 is supported by the columnar body 1 via the support legs 35, 35... The ready-made member 2 is stably held in a state where the columnar body head 1 a is inserted into the column insertion portion 7.

  On the other hand, since the ready-made member 2 and the columnar body head 1a are not directly restrained, the relative position of the ready-made member 2 with respect to the columnar body head 1a can be freely adjusted.

  At this time, there is a variation in the placement accuracy of each of the columnar bodies 1, 1... And there is an error in the height position of the top surface of the columnar body 1, or the ready-made member 2 with respect to the columnar body head 1 a set in advance. Alternatively, when an error occurs between the relative positional relationship of the reinforcing bars 9, 9... And the actual positional relationship, it is necessary to adjust the height of the ready-made member 2.

  Therefore, the height adjusting jacks 38 of the support legs 35, 35... Are operated to match the positions of the reinforcing bars 9, the parallelism of the ready-made members 2, etc. The height of the ready-made member 2 with respect to the body head 1a is adjusted.

  Thereby, it is possible to absorb an error caused by the placement accuracy of the columnar body 1 and the ready-made member 2 can be easily adjusted to an optimal position with respect to the columnar body head 1a.

  When the height adjustment of the support legs 35 and 35 is completed, the main beam members 5 and 5 and the cross beam members 6 and 6 constituting the ready-made member 2 are fixed to the columnar body head 1a via the joint support member 3. The main beam members 5 and 5 and the cross beam members 6 and 6 are installed between the columnar bodies 1 and 1.

  Next, if necessary, each reinforcing bar 9 embedded in the ready-made member 2 is connected to the columnar body head 1a, the hanging tools 34, 34... Are removed from the ready-made member 2, and the hanging frame 30 is removed.

  Next, the lower surface side opening of the column insertion portion 7 is closed with a bottom formwork material, and concrete 4 is placed in each column insertion portion 7 in this state, and the concrete 4 is cured and solidified, thereby forming a columnar body. The head 1a and the ready-made member 2 are joined, and each columnar body 1 and the ready-made member 2 are integrated.

  As a result, as shown in FIG. 6, the main beam members 5 and 5 and the cross beam members 6 and 6 constituting the ready-made member 2 are integrated through the concrete 4 on which the cast-in member is placed. 8 can be removed, and the removed combined mold / connector 8 can be used elsewhere.

  Then, a series of operations shown in FIGS. 4 to 6 is repeated as necessary to form a structure in which the beam portion made of the ready-made member 2 is integrated with the columnar body head 1a, and the cast-in-place concrete is formed on the beam portion. Alternatively, a floor slab is formed by precast construction to construct a structure such as a pier.

  In the construction method of the structure configured as described above, the ready-made member 2 can be suitably lifted by the crane by using the suspension frame 30 including the height-adjustable support legs 35, 35, and the support legs After the portions 35 and 35 are installed on the columnar body 1, the suspension frame 30 functions like a support for holding the ready-made member 2 in a stable state on the columnar body 1. The work of each process from the movement of the ready-made member 2 shown in 5 to the temporary support to the columnar head 1a can be performed efficiently, and is not easily affected by sea conditions and weather conditions.

  In the construction method of the structure, the main beam members 5 and 5 and the cross beam members 6 and 6 are connected to each other via the detachable mold / joint connection tool 8 and are lifted by the suspension frame 30. Thus, a plurality of precast members manufactured separately can be installed on the columnar head 1a at a time, and work can be performed efficiently.

  In addition, the shape of the suspension frame main body 33 is not limited to the above-mentioned Example, It can change suitably according to the shape of the ready-made member 2 installed in the columnar body head 1a.

  In the above-described embodiment, the main beam members 5 and 5 and the horizontal beam members 6 and 6 are separately formed, and both of them are connected by the formwork / connector 8. The present invention can also be applied to a ready-made member integrally formed with the part.

  Furthermore, the aspect of the joining support member 3 that temporarily supports the ready-made member 2 on the columnar head 1a is not particularly limited, and is fixed at a desired position with respect to the columnar head 1a, for example, as in the above-described embodiment. A support member such as a steel frame protrudes from the inner peripheral surface of the column insertion portion 7 of the ready-made member 2 as in the conventional example, and the support member is provided on the upper surface portion of the columnar body or the columnar shape. You may make it support with the bracket fixed to the outer peripheral surface of the body head.

  In the above-described embodiment, the pier has been described as an example. However, the present invention is not limited to this, and can be applied to a building structure such as a bridge construction or a building.

  Moreover, although the above-mentioned Example demonstrated the precast concrete structure ready-made member as an example, a ready-made member is not limited to this, For example, the ready-made member which consists of a steel plate, a steel frame, etc. may be sufficient.

DESCRIPTION OF SYMBOLS 1 Columnar body 2 Ready-made member 3 Joining support member 5 Main beam member 6 Horizontal beam member 7 Column insertion part 7a Recessed part 8 for column insertion part Reinforcement 10 Mechanical joint 11 Connection tool body 12 Attachment piece 13 Bolt 14 Reinforcement piece 30 suspension frame 31 sling wire 32 wire 33 suspension frame body 34 suspension tool 35 support leg part 36 movable part 37 lower leg part 38 height adjustment jack 50 vertical frame material 51 horizontal frame material 52 steel material 53 connecting material 54 suspension body 55 attachment Hook part 56 Nut 57 Suspension hook 60 Fixing plate 61a Upper slide piece 61b Lower slide piece 62 Guide hole 63 Fixing bolts 64, 65 Closing plate 66 Reinforcing piece

  The present invention mainly provides a suspension frame for transporting a ready-made member such as a precast concrete material constituting the beam to the columnar body head when constructing a structure such as a pier in which the beam is supported by a plurality of columnar bodies. It is related with the construction method of the structure using it.

  Conventionally, a structure such as a pier where a beam is supported by a plurality of columnar bodies such as piles, etc., after placing each columnar body on the bottom of the water, etc., steel frames are installed between these adjacent columnar bodies, reinforcing bars are arranged, etc. In addition, the formwork was formed between the columnar bodies using the support work supported by the columnar bodies, the beams were formed by hitting concrete in the field, and the beams and the columnar body heads were joined .

  However, in such a construction method, the beam is made of cast-in-place concrete, so installation of work scaffoldings and supporters for each work, placement of reinforcing bars and steel frames, assembly / disassembly of formwork, placement of concrete, All work such as curing had to be performed at the construction site, and there was a problem that the influence of sea conditions and weather conditions was great and the construction period was prolonged.

  Therefore, in view of such problems, conventionally, one or more precast concrete prefabricated members constituting the beam are manufactured in advance at an on-site factory or production yard, and transported to a construction site, and the columnar body head In this state, a method is used in which the ready-made member is supported, and in that state, concrete is placed between the columnar body head and the ready-made member to join them (see, for example, Patent Document 1).

  In this type of construction method, a through-hole into which a columnar body head is inserted is formed in a ready-made member, and a support member such as a steel frame is protruded from the inner peripheral surface of the through-hole. The lower surface is received by a bracket protruding from the upper surface of the columnar body or the outer peripheral surface of the columnar body, and a ready-made member is temporarily supported by the columnar body, and reinforcing bars are placed and connected in that state, and concrete is placed in the through hole. Like to do.

  On the other hand, in order to install this ready-made member on the columnar body head, the ready-made member is lifted by a crane ship or a crane installed on land, and the steel lower surface of the ready-made member is moved to the upper surface of the columnar body or the outer peripheral surface of the columnar body by crane operation. It is made to move to the position where it is placed on the protruding bracket.

Japanese Patent Laid-Open No. 8-100144

  However, in the conventional technology as described above, the height adjustment when the ready-made member is installed on the columnar body head must be performed by crane operation, and it is difficult to perform fine height adjustment. However, there is a problem that it is easily affected by weather and sea conditions.

  Further, in the conventional technology, since the support member such as a steel frame of a ready-made member is supported by a bracket fixed to the upper surface portion of the columnar body or the outer peripheral surface of the columnar body, in order to install the ready-made member at a desired height The height of the part supporting each ready-made member of each columnar body must be the same, so it is necessary to install each columnar body or bracket with high accuracy, and the work is complicated and the construction cost and construction period are long. There was a problem of increasing.

  Furthermore, in the conventional technology, when the ready-made member is composed of, for example, a plurality of precast concrete parts, it is necessary to perform installation on the columnar body for each part. There was a problem.

  Therefore, in view of such conventional problems, the present invention is a suspension frame that is not easily affected by weather and sea conditions, and that allows easy adjustment of the height of a ready-made member with respect to a columnar body, and a method for constructing a structure using the same. It was made for the purpose of provision.

The feature of the invention according to claim 1 for solving the conventional problems as described above is that each of the ready-made members having column insertion portions vertically passing through the columns aligned with the positions of the plurality of standing columnar bodies is provided. A suspension frame for transferring by a crane to a position where a columnar body is inserted into the column insertion portion, the suspension frame body suspended by the crane, and the ready-made member disposed under the suspension frame body A suspension tool that is supported by the suspension frame main body, and a support leg portion that can be adjusted in height by extending and contracting and projecting downward at a position aligned with the column insertion portion of the suspension frame body. The support leg is placed on the upper surface of the inserted columnar body, and the suspension frame main body is supported by the columnar body through the support leg so that the height can be adjusted while supporting the ready-made member. It is in the hanging frame.

  According to a second aspect of the present invention, in addition to the configuration of the first aspect, the support leg portion is fixed to the lower end of the movable portion, and an extendable movable portion whose upper end is fixed to the suspension frame main body. And a height adjusting jack for adjusting the height of the movable portion.

The feature of the invention described in claim 3 is that each of the columnar bodies is inserted into the column insertion section with a ready-made member having a column insertion section that penetrates up and down in alignment with the positions of the plurality of standing columnar bodies. In the method of constructing a structure in which the columnar body and the ready-made member are joined to each other and the columnar body and the ready-made member are integrated in this state, a suspension frame main body suspended by a crane and the suspension frame A suspension tool for supporting the ready-made member disposed below the main body on the suspension frame main body, and a support leg capable of adjusting the height by extending and contracting downward at a position aligned with the column insertion portion of the suspension frame main body The suspension frame is lifted by a crane in a state where the ready-made member is suspended under the suspension frame body, and the columnar body is inserted into the column insertion portion, and the support legs Part placed on top of the columnar body Thereby, the prefabricated member is supported via the hanging frame in the columnar body, thereafter, to adjust the height of the support legs to adjust the relative height between the prefabricated member and the columnar body head structure It is in the construction method of things.

  The feature of the invention described in claim 4 is that, in addition to the configuration of claim 3, the ready-made member is a pair of main beam members made of precast concrete having a recessed portion for a recessed notch-shaped pile insertion portion opened on a side surface; A precast concrete transverse beam member arranged between the main beam members separately, separately disposed on the side opening side of the pile insertion portion recess, and the pile insertion portion recess Connecting the main beam member and the cross beam member and forming the column insertion portion by connecting the opening edges on both side surfaces and the cross beam member via detachable mold and joint couplers, and the ready-made member Is suspended from the suspension frame, the columnar body is inserted into the column insertion portion, and the support leg is placed on the upper surface of the columnar body, whereby the main beam member and the transverse beam member are Before body It is to be supported through the hanging frame.

As described above, the suspension frame according to the present invention inserts a ready-made member having a column insertion portion that penetrates up and down in alignment with the positions of a plurality of standing columnar bodies, and each columnar body is inserted into the column insertion portion. A suspension frame for transporting by a crane to a position where the suspension frame is moved, a suspension frame main body suspended by the crane, and a suspension tool for supporting the ready-made member disposed under the suspension frame main body on the suspension frame main body , and a height adjustable support legs by expansion and contraction which projects downwardly to a position which is matched to the column insertion portion of the hanging frame body, wherein the upper surface of the inserted columnar body to said post insertion portion With the support leg portion placed and supporting the ready-made member, the suspension frame main body is supported by the columnar body through the support leg portion so that the height can be adjusted. In addition, the ready-made member is stably held on the columnar head Function as the structure of the fit, less susceptible to weather and sea conditions conditions, can be easily performed height adjustment of the shelf member with respect to the columnar body for each pillar.

Further, in the present invention, the support leg portion includes an extendable movable portion having an upper end fixed to the suspension frame body, and a lower leg portion fixed to the lower end of the movable portion. By providing the height adjusting jack for adjusting the height of the movable part, the height can be easily adjusted for each support leg .

Furthermore, in the construction method of the structure according to the present invention, each columnar body inserts a ready-made member having a column insertion portion that penetrates up and down in alignment with the positions of a plurality of standing columnar bodies. In the construction method of the structure in which the columnar body and the ready-made member are joined in such a state, and the columnar body and the ready-made member are integrated, a suspension frame main body suspended by a crane, The height can be adjusted by a hanging tool for supporting the ready-made member arranged under the hanging frame main body on the hanging frame main body, and an expansion and contraction projecting downward at a position aligned with the column insertion portion of the hanging frame main body. Using a suspension frame provided with a support leg , lifting the suspension frame with a crane in a state where the ready-made member is suspended under the suspension frame body, and inserting the columnar body into the column insertion portion, The support leg is the columnar body. Is placed on a surface, said off-the-shelf member is supported through the hanging frame in the columnar body, thereafter, to adjust the height of the support legs, the relative heights of the columnar body head and the prefabricated member By adjusting, it is possible to easily adjust the position of the ready-made member with respect to the columnar body head by absorbing the error of each columnar body caused by the accuracy at the time of columnar body installation.

  Further, in the present invention, the ready-made member includes a pair of precast concrete main beam members each having a recessed portion for a pile insertion portion that is open on a side surface, and a precast parallel to each other disposed between the main beam members. Separately provided with a concrete transverse beam member, the transverse beam member is disposed on the side opening side of the concave portion for the pile insertion portion, and both side opening edges of the concave portion for the pile insertion portion and the lateral beam member can be attached and detached. The main beam member and the cross beam member are connected to each other through a connecting device that also serves as a formwork, and the column insertion portion is formed, the ready-made member is suspended from the suspension frame, and the columnar body is The main beam member and the horizontal beam member are supported by the columnar body via the suspension frame by being inserted into the column insertion portion and by placing the support leg portion on the upper surface of the columnar body. More, it is possible to respectively installed in separately fabricated precast products simultaneously columnar body head, thereby shortening the work period.

It is a top view which shows the hanging frame used for this invention. It is a partial expanded side view which shows the support leg part in FIG. (A) is a top view which shows an example of a ready-made member, (b) is the YY sectional view taken on the line which shows a column insertion part part same as the above. It is sectional drawing which shows the state of the transfer process of a ready-made member in the construction method of the structure using the hanging frame which concerns on this invention. It is sectional drawing for demonstrating a suspension frame installation same as the above, and a height adjustment process. (A) is a top view of the structure constructed | assembled by this invention, (b) is the XX sectional drawing.

  Next, an embodiment of the hanging frame according to the present invention will be described based on the embodiment shown in FIGS. In the figure, reference numeral 1 is a columnar body such as a pile placed on the bottom of the water, reference numeral 2 is a prefabricated member constituting a beam supported by each of the columnar bodies 1, 1. It is a hanging frame for hanging and holding.

  For example, as shown in FIG. 3, the ready-made member 2 includes a pair of precast concrete main beam members 5, 5 arranged in parallel to each other and a precast concrete structure spanned between the main beam members 5, 5. A column insertion portion 7 is provided which includes horizontal beam members 6 and 6 and penetrates in the vertical direction where the columnar head 1a is inserted at a portion where the main beam members 5 and 5 and the horizontal beam members 6 and 6 intersect.

  The suspension frame 30 according to the present invention is used when lifting this kind of ready-made member 2 with a crane and installing it on the columnar head 1a, and is suspended by the crane as shown in FIG. The suspension frame body 33, the suspension members 34, 34... For supporting the ready-made member 2 disposed below the suspension frame body 33 on the suspension frame body 33, and the column insertion portion 7 of the suspension frame body 33 are aligned. Supporting leg portions 35, 35 projecting downward are provided.

  The suspension frame main body 33 includes a plurality of vertical frame members 50, 50... Arranged in parallel at a desired interval, and a plurality of horizontal frame members arranged so as to cross the vertical frame members 50, 50. 51, 51, and vertical frame members 50, 50 ... and horizontal frame members 51, 51 are assembled to form a lattice frame shape.

  Each of the vertical frame members 50, 50 ... has a pair of steel members having flange portions 52a, 52b projecting outward from the upper and lower ends of the grooved steel or the like, and facing the flange portions 52a, 52b outward. 52, 52 and a plurality of connecting members 53, 53... For connecting the steel members 52, 52 at a desired interval, and the hanger 34, 34 ... is inserted between the steel members 52, 52. The upper and lower flange portions 52a and 52b can be fixed.

  Further, the pair of vertical frame members 50, 50 arranged on the sides are arranged in parallel with each other in a width aligned with the short width of the main beam members 5, 5 constituting the ready-made member 2. The upper surfaces of the main beam members 5 and 5 are supported at the lower ends of the suspension members 34, 34.

  The hanger 34, 34... Includes a hanger body 54 made of a steel bar or the like having a male screw portion 54 a at the upper end, and an attachment hook portion 55 fixed to the lower end of the hanger body 54. Are inserted between the steel members 52, 52 of the vertical frame members 50, 50... And the nuts 56 are fastened to the upper and lower sides of the male screw portions 54a sandwiching the vertical frame members 50, 50. Are fixed to the vertical frame members 50, 50.

  Each of the horizontal frame members 51, 51 is made of a steel material such as H-shaped steel, and the vertical frame members 50, 50... Are fixed on the upper surface by welding or the like at a desired interval.

  Further, on each horizontal frame member 51, 51, a hanging hook 57 protrudes at an interval in the longitudinal direction of the upper surface portion, and as shown in FIG. 4, the sling wires 31, 31 are attached to the hanging hook 57. The lower end of ... is connected. In the figure, reference numeral 32 denotes a wire fed from the crane.

  The horizontal frame members 51 and 51 are arranged so as to cross over the column insertion portion 7 of the ready-made member 2, and the upper ends of the support leg portions 35 and 35 are aligned with the position of the column insertion portion 7 on the lower surface thereof. It is fixed.

  As shown in FIG. 2, each support leg 35 is fixed to the suspension frame main body 33, that is, the extendable movable part 36 whose upper end is fixed to the lower surface of the horizontal frame members 51 and 51, and the lower end of the movable part 36. The lower leg portion 37 and a height adjusting jack 38 for adjusting the height of the movable portion 36 are provided. By operating the height adjusting jack 38, the height of the supporting leg portions 35 and 35 can be adjusted. It can be done.

  The movable portion 36 includes a flat plate-like fixed plate 60 fixed to the lower surface of the horizontal frame members 51, 51, a plurality of upper slide pieces 61a protruding downward from the lower edge of the lower surface of the fixed plate 60, and each upper slide piece 61a. The lower slide piece 61b is supported so as to be slidable in the vertical direction and the lower end is fixed to the upper end of the lower leg portion 37, and can be expanded and contracted by the vertical movement of the upper and lower slide pieces 61a and 61b.

  The upper and lower slide pieces 61a and 61b are each formed with a guide hole 62 in the shape of a long hole facing up and down, and a fixing bolt 63 passed through the guide hole 62 is fastened to the other slide piece 61a. The relative positions of the upper and lower slide pieces 61a and 61b can be fixed.

  The lower leg portion 37 is configured by a square steel pipe or the like whose upper and lower ends are closed by closing plates 64 and 65 such as steel plates, and rib-shaped reinforcing pieces 66 and 66 are provided on the outer periphery of the lower end portion.

  The height adjusting jack 38 has an upper end fixed to the fixed plate 60 of the movable portion 36 and a lower end fixed to the upper closing plate 64 of the lower leg portion 37, and is supported by the lower leg portion 37 by operating to fix the fixed plate 60. It moves up and down, that is, the movable part 36 is expanded and contracted.

  The aspect of the height adjusting jack 38 is not particularly limited, and may be any of a mechanical type such as a screw type and a ratchet type, a fluid operated type such as a hydraulic type, and a manual type or an electric type. Good.

  Next, a method for constructing a structure using the suspension frame configured as described above will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected and demonstrated to the structure similar to the above-mentioned Example, Code | symbol A comprises structures, such as a pier, code | symbol 1 is columnar bodies, such as a pile, and code | symbol 2 comprises the beam of a structure. The ready-made member and the code | symbol 30 are hanging frames.

  In this structure A, the ready-made member 2 having the column insertion portions 7 that are vertically aligned and aligned with the positions of the plurality of columnar bodies 1, 1. ) Is temporarily inserted so as to be inserted into the column insertion portion 7, and in this state, the columnar body head 1 a and the ready-made member 2 are joined to integrate the columnar body 1 and the ready-made member 2.

  The columnar bodies 1, 1... Are piles constituted by cylindrical steel pipes, and are placed on the water bottom ground to a desired depth of penetration so that the upper end portion protrudes on the water surface B.

  The ready-made member 2 includes precast concrete main beam members 5 and 5 and cross beam members 6 and 6 which are separately manufactured, and the main beam members 5 and 5 and the cross beam members 6 and 6 are respectively columnar body heads. It is joined to 1a.

  Each of the main beam members 5 and 5 is formed in a rectangular parallelepiped shape made of reinforced concrete, and has a recessed portion 7a for a column insertion portion having a recessed shape in which upper and lower and side surfaces are opened at positions aligned with the horizontal beam members 6 and 6 on one side thereof. Are arranged in parallel with the column insertion portion concave portions 7a facing each other.

  Further, reinforcing bars 9 are embedded in the main beam members 5 and 5 in the longitudinal direction and the short direction, and the mechanical joints 10 are fixed to the portions of the reinforcing bars 9 exposed on the inner side surfaces of the column insertion portion recesses 7a. Has been.

  Each of the horizontal beam members 6 and 6 is formed in a rectangular parallelepiped shape made of reinforced concrete, and is between the main beam members 5 and 5 in a position aligned with the column insertion portion recess 7a in the direction between the main beam members 5 and 5. It is arranged to face.

  Reinforcing bars 9 are embedded in the respective transverse beam members 6 and 6 in the longitudinal direction, and mechanical joints 10 are fixed to both ends of each reinforcing bar 9, that is, to end surface portions of the transverse beam members 6 and 6.

  In order to construct the structure A, first, on the land near the construction site, the precast concrete main beam members 5 and 5 and the transverse beam members 6 and 6 respectively manufactured in advance in the factory are placed on the land portion near the construction site. Then, as shown in FIG. 3, the main beam members 5, 5 and the cross beam members 6, 6 are connected by a formwork / connector 8, and the ready-made member 2 is assembled in a lattice plate shape.

  The joint for both formwork 8 is made of a steel material, and includes a flat plate-like connector main body 11 and a pair of attachment pieces 12 that extend obliquely from both side ends of the connector main body 11 and are perpendicular to each other. 12.

  Then, the mounting pieces 12 and 12 of the connecting tool for formwork are respectively connected to the side opening edges of the column insertion portion recesses 7a of the main beam members 5 and 5 and the side surfaces of the side beam members 6 and 6, respectively with bolts 13 and 13. .., The main beam members 5, 5 and the horizontal beam members 6, 6 are connected to each other, and the connector main body 11 forms a partial inner wall of the column insertion portion 7.

  In addition, the formwork / connector 8 is integrally provided with reinforcing pieces 14 and 14 for connecting the mounting pieces 12 and 12 on the back surface of the connector main body 11 so as to project from the main beam portions 5 and 5 and the horizontal beam portion. The shear strength of 6 and 6 is enhanced.

  Next, the suspension frame 30 lifted by the crane is moved onto the assembled ready-made member 2, and the main beam members 5, 5 are attached to the attachment hook portions 55 of the suspension tools 34, 34. As shown in FIG. 4, the ready-made member 2 is lifted by a crane ship or a crane installed on land.

  At that time, the precast concrete main beam members 5, 5 and the horizontal beam members 6, 6 that are separately manufactured are connected to each other by the formwork / connector 8. 5 and 5 and the cross beam members 6 and 6 can be lifted simultaneously.

  And the ready-made member 2 lifted with the crane installed in the crane ship or the land is moved by crane operation, and the columnar body head 1a of each columnar body 1 is inserted into the column insertion part 7 as shown in FIG. At the same time, the support legs 35, 35... Of the suspension frame 30 are placed on the upper surface of the columnar body head 1a.

  As a result, the suspension frame 30 is suspended under the suspension frame 30 even when the suspension frame body 33 is supported by the columnar body 1 via the support legs 35, 35... The ready-made member 2 is stably held in a state where the columnar body head 1 a is inserted into the column insertion portion 7.

  On the other hand, since the ready-made member 2 and the columnar body head 1a are not directly restrained, the relative position of the ready-made member 2 with respect to the columnar body head 1a can be freely adjusted.

  At this time, there is a variation in the placement accuracy of each of the columnar bodies 1, 1... And there is an error in the height position of the top surface of the columnar body 1, or the ready-made member 2 with respect to the columnar body head 1 a set in advance. Alternatively, when an error occurs between the relative positional relationship of the reinforcing bars 9, 9... And the actual positional relationship, it is necessary to adjust the height of the ready-made member 2.

  Therefore, the height adjusting jacks 38 of the support legs 35, 35... Are operated to match the positions of the reinforcing bars 9, the parallelism of the ready-made members 2, etc. The height of the ready-made member 2 with respect to the body head 1a is adjusted.

  Thereby, it is possible to absorb an error caused by the placement accuracy of the columnar body 1 and the ready-made member 2 can be easily adjusted to an optimal position with respect to the columnar body head 1a.

  When the height adjustment of the support legs 35 and 35 is completed, the main beam members 5 and 5 and the cross beam members 6 and 6 constituting the ready-made member 2 are fixed to the columnar body head 1a via the joint support member 3. The main beam members 5 and 5 and the cross beam members 6 and 6 are installed between the columnar bodies 1 and 1.

  Next, if necessary, each reinforcing bar 9 embedded in the ready-made member 2 is connected to the columnar body head 1a, the hanging tools 34, 34... Are removed from the ready-made member 2, and the hanging frame 30 is removed.

  Next, the lower surface side opening of the column insertion portion 7 is closed with a bottom formwork material, and concrete 4 is placed in each column insertion portion 7 in this state, and the concrete 4 is cured and solidified, thereby forming a columnar body. The head 1a and the ready-made member 2 are joined, and each columnar body 1 and the ready-made member 2 are integrated.

  As a result, as shown in FIG. 6, the main beam members 5 and 5 and the cross beam members 6 and 6 constituting the ready-made member 2 are integrated through the concrete 4 on which the cast-in member is placed. 8 can be removed, and the removed combined mold / connector 8 can be used elsewhere.

  Then, a series of operations shown in FIGS. 4 to 6 is repeated as necessary to form a structure in which the beam portion made of the ready-made member 2 is integrated with the columnar body head 1a, and the cast-in-place concrete is formed on the beam portion. Alternatively, a floor slab is formed by precast construction to construct a structure such as a pier.

  In the construction method of the structure configured as described above, the ready-made member 2 can be suitably lifted by the crane by using the suspension frame 30 including the height-adjustable support legs 35, 35, and the support legs After the portions 35 and 35 are installed on the columnar body 1, the suspension frame 30 functions like a support for holding the ready-made member 2 in a stable state on the columnar body 1. The work of each process from the movement of the ready-made member 2 shown in 5 to the temporary support to the columnar head 1a can be performed efficiently, and is not easily affected by sea conditions and weather conditions.

  In the construction method of the structure, the main beam members 5 and 5 and the cross beam members 6 and 6 are connected to each other via the detachable mold / joint connection tool 8 and are lifted by the suspension frame 30. Thus, a plurality of precast members manufactured separately can be installed on the columnar head 1a at a time, and work can be performed efficiently.

  In addition, the shape of the suspension frame main body 33 is not limited to the above-mentioned Example, It can change suitably according to the shape of the ready-made member 2 installed in the columnar body head 1a.

  In the above-described embodiment, the main beam members 5 and 5 and the horizontal beam members 6 and 6 are separately formed, and both of them are connected by the formwork / connector 8. The present invention can also be applied to a ready-made member integrally formed with the part.

  Furthermore, the aspect of the joining support member 3 that temporarily supports the ready-made member 2 on the columnar head 1a is not particularly limited, and is fixed at a desired position with respect to the columnar head 1a, for example, as in the above-described embodiment. A support member such as a steel frame protrudes from the inner peripheral surface of the column insertion portion 7 of the ready-made member 2 as in the conventional example, and the support member is provided on the upper surface portion of the columnar body or the columnar shape. You may make it support with the bracket fixed to the outer peripheral surface of the body head.

  In the above-described embodiment, the pier has been described as an example. However, the present invention is not limited to this, and can be applied to a building structure such as a bridge construction or a building.

  Moreover, although the above-mentioned Example demonstrated the precast concrete structure ready-made member as an example, a ready-made member is not limited to this, For example, the ready-made member which consists of a steel plate, a steel frame, etc. may be sufficient.

DESCRIPTION OF SYMBOLS 1 Columnar body 2 Ready-made member 3 Joining support member 5 Main beam member 6 Horizontal beam member 7 Column insertion part 7a Recessed part 8 for column insertion part Reinforcement 10 Mechanical joint 11 Connection tool body 12 Attachment piece 13 Bolt 14 Reinforcement piece 30 suspension frame 31 sling wire 32 wire 33 suspension frame body 34 suspension tool 35 support leg part 36 movable part 37 lower leg part 38 height adjustment jack 50 vertical frame material 51 horizontal frame material 52 steel material 53 connecting material 54 suspension body 55 attachment Hook part 56 Nut 57 Suspension hook 60 Fixing plate 61a Upper slide piece 61b Lower slide piece 62 Guide hole 63 Fixing bolts 64, 65 Closing plate 66 Reinforcing piece

Claims (4)

A suspension frame for transferring a ready-made member having a column insertion portion that penetrates up and down in alignment with the positions of a plurality of standing columnar bodies to a position where each columnar body is inserted into the column insertion portion by a crane. There,
A suspension frame main body suspended by the crane, a suspension tool for supporting the ready-made member arranged under the suspension frame main body on the suspension frame main body, and a position aligned with the column insertion portion of the suspension frame main body. A height-adjustable support leg protruding downward, the support leg is supported on the upper surface of the columnar body inserted into the column insertion portion, and the suspension frame main body is in a state of supporting the ready-made member. A suspension frame characterized by being supported by a columnar body via a support leg so that the height can be adjusted.   The support leg includes a telescopic movable part whose upper end is fixed to the suspension frame main body, a lower leg part fixed to the lower end of the movable part, and a height for adjusting the height of the movable part. The suspension frame according to claim 1, further comprising an adjustment jack. A ready-made member having a column insertion portion that penetrates up and down in alignment with the positions of the plurality of columnar bodies erected is temporarily installed so that each columnar body is inserted into the column insertion portion, and in that state, the columnar body In the construction method of the structure that joins the columnar body and the ready-made member by joining the ready-made member and
A suspension frame main body suspended by the crane, a suspension tool for supporting the ready-made member arranged under the suspension frame main body on the suspension frame main body, and a position aligned with the column insertion portion of the suspension frame main body Use a suspension frame with a height-adjustable support leg protruding downward,
The suspension frame is lifted by a crane in a state where the ready-made member is suspended under the suspension frame body, the columnar body is inserted into the column insertion portion, and the support leg is placed on the top surface of the columnar body, The ready-made member is supported on the columnar body via the suspension frame,
Thereafter, the height of the support leg is adjusted, and the relative height between the columnar body head and the ready-made member is adjusted. The ready-made member includes a pair of precast concrete main beam members having recesses for recessed column insertion portions opened on the side surfaces, and precast concrete cross beam members arranged between the main beam members and parallel to each other. Are provided on the side opening side of the concave portion for the column insertion portion, and both the opening edges on both side surfaces of the concave portion for the column insertion portion and the lateral beam member are detachable. And connecting the main beam member and the transverse beam member and forming the column insertion portion,
The prefabricated member is suspended from the suspension frame, the columnar body is inserted into the column insertion portion, and the support leg portion is placed on the upper surface of the columnar body, whereby the main beam member and the transverse beam member are The method for constructing a structure according to claim 3, wherein the columnar body is supported by the suspension frame.

Images