JP2005349819A - Manufacturing method and its shaping apparatus of hollow thin shell column body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manufacturing method of a hollow thin shell column body and its shaping apparatus which can shorten the term of works and improve the productive capacity by making the working easy and reinforcing the quality of a beam pole. <P>SOLUTION: An upper part steel mold 51 of an L shape has two or more arc leveling pads of a circular arc form at the external side. A lower part steel mold 52 of an L shape has two or more arc leveling pads of a circular arc form at the external side. Two definite shape leakage proof units 53, in which the thickness of a concrete molding is set by four sides, have openings to be filled in by transfixing working reinforcing steels 532 for a reinforcing steel basket at two opposing corners. Therefore, the molding shape of a four way-type long tube in a seal-up condition is composed, two opening edges at the front and rear of it and four interior molding surfaces are formed, the upper part steel mold 51 of the L shape and the lower part steel mold 52 of the L shape are assembled together and joined with the arc leveling pads of those external sides to form circular arc leveling pads 54 at the external side of an apparatus so that the form which switches the surface by a rotation is composed and the shaping for one surface is possible by one rotation. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a hollow thin shell column for building operation, and more particularly to a method for manufacturing a hollow thin shell column and a molding apparatus.

  Generally, when building a building, the framework is divided into a framework composed of reinforced concrete and a framework composed of steel. The form of construction using a skeleton composed of reinforced concrete is as follows. One is to build up the reinforcing bars and plates at the construction site of the building and pour concrete into the columns. The other is to pre-manufacture a hollow thin shell column in a molding factory, and then carry it into a building construction site and combine it with the base or beam according to the assembly method. When building the column of the building using the former method, it is necessary to lay and fix the reinforcing bar and the plate in advance at the position of the column base, and after that, until the concrete in the plate is solidified by pouring the concrete Since this process does not proceed, the construction time becomes longer and the construction period of the building may be extended. When building the pillar of a building using the latter method, it is possible to manufacture a hollow thin shell column in advance at a molding factory. However, the hollow thin shell column is a column composed of reinforcing steel and concrete, and is extremely heavy. For this reason, not only is there inconvenience in transportation and on-site construction, but the cost is increased.

  Therefore, the inventor reduces the weight of the molding material to facilitate the operations such as lifting, conveying and assembling, strengthening the quality of the beam column, shortening the work period and improving the productivity, and A manufacturing method and a forming apparatus of a hollow thin shell column that can effectively improve the drawbacks of the present invention are submitted.

  The main object of the present invention is, in the case of a known method of building a building, reinforcing bars and plates are installed at the building construction site and concrete is poured to form columns, or a hollow thin shell column is manufactured in advance at a molding factory. Then, it is for solving the fault that the method of carrying in to the construction site of a building, and connecting with a base or a beam by the enforcement method of an assembly cannot realize the purpose of a construction period shortening or productivity improvement.

  The construction process is regarded as an important part of the foundation construction, is also the foundation of economic development, and the quality of the construction process is rigorously demanded so as not to compromise. A method and apparatus for manufacturing a hollow thin-walled column that makes it easy to lift, convey and assemble by reducing the weight, enhances the quality of the beam column, shortens the work period, and improves productivity. Is to provide.

  In order to achieve the above-mentioned object, the molding apparatus provided by the present invention comprises an L-shaped upper steel mold, an L-shaped lower steel mold, and two fixed leak-proof units, of which an L-shaped The upper and lower steel formwork has a plurality of arc-shaped arc-shaped seats on the outer surface, and the molding shape of a four-sided long cylinder in a sealed state is set by setting the thickness of concrete molding on four sides by a fixed leak-proof unit And two opening ends and four inner peripheral molding surfaces a, an inner peripheral molding surface b, an inner peripheral molding surface c, and an inner peripheral molding surface d are formed on the front and rear sides thereof, By assembling steel molds, joining the arc-shaped leg seats on their outer faces, and forming a circular arc leg seat on the outer face of the device, it forms a form that switches the face by rotation, one face at a time Can be formed. The hollow thin shell column body is composed of a plurality of frame column reinforcement bars, and has a work reinforcement bar that protrudes to the outside by penetrating and connecting all the frame column reinforcement bars on its two diagonal sides, The reinforcing bar is set in the internal space of the above-mentioned L-shaped upper steel form and the L-shaped lower steel form, and the working rebar penetrates the filling hole of the above-described fixed leak-proof unit. In another embodiment, the forming device can increase the strength of the structure by replacing the original reinforcing bar rod with a spiral reinforcing rod rod, and the small diagonal frame reinforcing rods on the two diagonal sides. Inside, there are working reinforcing bars that penetrate and connect all the spiral reinforcing bar rods and project to the outside, and the working reinforcing bars pass through the filling holes of the fixed leak-proof unit.

The manufacturing method according to the present invention includes the following steps.
Step A consists of assembling an L-shaped upper steel form and an L-shaped lower steel form to form a sealed four-sided long cylindrical shape, with two open ends and four inner peripheral forming surfaces before and after that. a, an inner peripheral molding surface b, an inner peripheral molding surface c and an inner peripheral molding surface d are formed, an arcuate leg seat of the a surface is set up on the ground, the a surface is stabilized so as to be parallel to the ground, and The rebar rod structure that is the internal framework of the hollow thin shell column is set in the internal space from the opening end, the above-mentioned fixed leak-proof unit is mounted on the open end, and the reinforcing bar working rebar is inserted from the filling hole of the fixed leak-proof unit By penetrating and projecting outside, the assembly of the entire apparatus is completed, thereby forming the molding area of the outer peripheral concrete of the hollow thin shell column.

  In step B, the concrete is poured into the inner peripheral molding surface a parallel to the ground, and the thickness of the poured concrete is made to match the thickness set by the fixed leak-proof unit (the concrete is set by the fixed leak-proof unit). Wait until the concrete hardens.

  Step C, after the a-plane concrete has hardened, rotate the device forward with an arc-shaped pedestal on the outer surface of the device to switch the surface, make the b-side parallel to the ground, and then parallel to the ground The concrete is poured into the inner peripheral molding surface b, the thickness of the poured concrete is made to coincide with the thickness set by the fixed leak-proof unit, and the concrete is waited for to harden.

  Step D follows Step C, after the concrete on the inner periphery forming surface parallel to the ground has hardened, rotate the device with an arc-shaped leg seat on the outer surface of the device, switch the surface between c-plane and d-plane, and Inject concrete and wait for the concrete to harden.

  Step E is to fix the fixed leak-proof unit and the L-shaped upper and lower steel molds after the concrete of the four inner circumferential molding surfaces a, inner circumferential molding surface b, inner circumferential molding surface c and inner circumferential molding surface d is solidified. Loosening, separating the structure of the device, removing the formwork, joining the suspension ring joint and the projecting reinforcing bar projecting to the outside, forming a suspension ring for lifting, the manufacture of the hollow thin shell column is completed It is to be.

  Therefore, the above-mentioned forming apparatus and manufacturing steps greatly simplify the construction process, reduce the weight of the molding material, facilitate the operations such as lifting, transporting and assembling, and strengthening the quality of the beam pillars. The power can be greatly improved.

  Compared to the conventional method of constructing a hollow thin shell column, the molding apparatus according to the present invention comprises an L-shaped upper steel mold, an L-shaped lower steel mold, and two fixed leak-proof units, of which an L-shaped The upper and lower steel formwork has a plurality of arc-shaped arc seats on the outer surface, and by setting the thickness of the concrete molding on the four sides by the fixed leak-proof unit, the sealed four-sided long cylindrical shape is molded Forming a shape and having two opening ends and four inner peripheral molding surfaces a, an inner peripheral molding surface b, an inner peripheral molding surface c, and an inner peripheral molding surface d are formed on the front and rear sides thereof. By assembling the steel formwork, joining the arc-shaped leg seats on the outer surface and forming the circular arc-shaped leg seat on the outer surface of the device, it forms a form that switches the surface by rotation, one at a time Since the surface can be molded, the construction method is new and hollow thin To achieve a method of manufacturing a pillar.

Embodiments of the present invention will be described below with reference to the drawings.
1 and 2 are an exploded view and a three-dimensional external view of a molding apparatus according to an embodiment of the present invention in which a reinforcing bar is set. The forming apparatus 5 according to the present embodiment includes an L-shaped upper steel mold 51, an L-shaped lower steel mold 52, and two fixed leak-proof units 53, of which an L-shaped upper steel mold 51 and an L-shaped The lower steel mold 52 has two arc-shaped arc-shaped leg seats 511 or two arc-shaped leg seats 521 on each outer surface, the four sides of the fixed leak-proof unit 53 have equal widths, and two After the completion of the work of pouring the concrete into the hollow thin shell column 6, the suspension ring joint 533 and the work rebar are provided. The suspension ring for the crane 8 is formed by joining 532. The hollow thin shell column body 6 is composed of a plurality of frame column reinforcing bar rods 61 inside, and the work diagonal reinforcing bars projecting to the outside by passing through and connecting all the frame column reinforcing bar rods 61 on the two diagonal sides. The reinforcing bar 61 is set in the internal space of the L-shaped upper steel mold 51 and the L-shaped lower steel mold 52, and the working reinforcing bar 532 passes through the filling hole 531 of the fixed leak-proof unit 53. . When assembling the forming apparatus 5, the upper and lower connecting edges 512 of the L-shaped upper steel mold 51 and the upper and lower connecting edges 522 of the L-shaped lower steel mold 52 are tightly joined. In the embodiment, the L-shaped upper steel mold 51 and the L-shaped lower steel mold 52 are provided with screw holes for tightening fixing bolts on the connecting edge 512 and the connecting edge 522 on one outer surface thereof. By providing a plurality or joining by welding, a sealed four-way long cylindrical shape is formed, and before and after that, two open ends and four inner peripheral molding surfaces a, inner peripheral molding surfaces b, When the inner peripheral molding surface c and the inner peripheral molding surface d are formed, and when the L-shaped upper steel mold 51 and the L-shaped lower steel mold 52 are assembled, arc-shaped leg seats 511 on the outer surfaces thereof The arcuate leg seat 521 is joined and the circular arc leg seat 54 is formed on the outer surface of the apparatus, so that the molding apparatus 5 is configured to switch the surface by rotation, and one inner peripheral molding surface at a time. Can be formed.

A manufacturing method according to an embodiment of the present invention includes the following steps.
Step A assembles an L-shaped upper steel mold 51 and an L-shaped lower steel mold 52 to form a sealed four-sided long cylindrical shape, with two open ends and four inner peripheries before and after that. The molding surface a, the inner circumferential molding surface b, the inner circumferential molding surface c, and the inner circumferential molding surface d are formed, and the arc-shaped leg seat 511 (the arc-shaped leg seat 54) of the a-plane is standing on the ground, and the a-plane is Stabilize parallel to the ground, and set the rebar rod 61 structure, which is the internal framework of the hollow thin shell column 6, from the open end to the internal space, and attach the above-described fixed leak-proof unit 53 to the open end. By forming the work rebar 532 of the rod 61 from the filling hole 531 of the fixed leak-proof unit 53 and projecting outside to complete the assembly of the entire apparatus, the molding area of the outer peripheral concrete of the hollow thin shell column 6 is formed. It is.

  In step B, the concrete is poured into the inner peripheral molding surface a parallel to the ground, and the thickness of the poured concrete is made to match the thickness set by the fixed leak-proof unit 53 (the concrete is set by the fixed leak-proof unit). If it exceeds the thickness, it will overflow) and wait until the concrete has hardened.

  In Step C, after the concrete on the a-side has hardened, the forming device 5 is rotated forward by the arc-shaped leg seat 54 on the outer surface of the forming device 5 to switch the surface, and the b-side is made parallel to the ground. Then, the concrete is poured into the inner peripheral molding surface b parallel to the ground, the thickness of the poured concrete is made to coincide with the thickness set by the fixed leak-proof unit 53, and waiting until the concrete is hardened.

  In step D, in accordance with step C, after the concrete on the inner peripheral molding surface parallel to the ground has hardened, the molding device 5 is rotated by the arc-shaped leg seat 54 on the outer surface of the molding device 5 so that the surface is c-plane. Switch to d-plane and pour concrete and wait until the concrete hardens.

  In step E, after the concrete on the four inner peripheral molding surfaces a, inner peripheral molding surface b, inner peripheral molding surface c, and inner peripheral molding surface d is solidified, the fixed leak-proof unit 53, the L-shaped upper steel mold 51 And the L-shaped lower steel formwork 52 are loosened, the structure of the apparatus is separated, the formwork is removed, the suspension ring joint 533 and the work rebar 532 projecting outside are joined, and a suspension ring for lifting is formed. Once formed, the manufacture of the hollow thin shell column 6 is complete.

  FIG. 3 is a schematic view showing the production of the inner peripheral surface portion according to the present embodiment. In accordance with Step B, the concrete is poured into the inner peripheral molding surface a parallel to the ground by the external concrete pouring device 7, and the thickness of the poured concrete is made to coincide with the thickness set by the fixed leak-proof unit 53 (concrete If the thickness exceeds the thickness set by the standard leak-proof unit, it will overflow) and wait until the concrete hardens.

  FIG. 4 is a schematic diagram showing the implementation of the manufacturing method according to this embodiment (rotating and switching surfaces). According to Step C and Step D, after the a-plane concrete has hardened, the molding device 5 is rotated forward by the arc-shaped leg seat 54 on the outer surface of the molding device 5 to switch the surface, and the b-plane is parallel to the ground. Then, the concrete is poured into the inner peripheral molding surface b parallel to the ground, the thickness of the poured concrete is made to coincide with the thickness set by the fixed leak-proof unit, and the concrete waits.

  5, 6, and 7 are schematic views of lifting the hollow column body 6 molded according to the present embodiment and moving it to a place where the beam column 9 is to be installed. The hollow thin shell column 6 manufactured by the above-described manufacturing steps reduces the weight of the molding material, so that the operations such as lifting, transporting and assembling are facilitated, and the productivity is greatly improved. Cost can be reduced. In addition, after separating the hollow thin-shell column 6 manufactured by the above-described manufacturing steps and the formwork, first, the reinforcing beam column 9 is assembled by the reinforcing bar joint 91 at the construction site, and then the hollow thin-shell column 6 is lifted by the crane 8. In this case, when it is moved to the reinforcing bar column 9 and covered with the reinforcing bar column 9, it is possible to make the inner structure of the beam column closer by strengthening the coupling degree by the fixing plate 92 of the column reinforcing bar.

  FIGS. 8 and 9 are an exploded view and a plan view of a molding apparatus according to another embodiment of the present invention in which a helical reinforcing bar is set, in order to enhance the structural strength of the hollow thin shell column 6. This is an embodiment in which the inside of the forming device 5 is replaced with a spiral reinforcing bar 62. It is possible to prevent deformation of the large spiral frame reinforcing bar 621 by an external force by binding and fixing the large spiral frame reinforcing bar 621 and several main reinforcing bars 622 on the outer side thereof, or by connecting them by welding. The large helical frame reinforcing bar 621 has small helical frame reinforcing bars 623 at four positions on the outer periphery, and the small helical frame reinforcing bar 623 has a main helical reinforcing bar 624 of a small helical frame reinforcing bar which is bound inside or fixed by welding. The small spiral frame reinforcing bar 623 is not deformed by an external force and is not deformed by an external force by binding the auxiliary reinforcing bar 625 of the small spiral frame reinforcing bar 625 and the large helical frame reinforcing bar 621 to both ends adjacent to the reinforcing bar 621 and fixing them. The helical reinforcing bar 62 fixed on the frame reinforcing bar 621 and assembled to have an appropriate length is set in the molding apparatus 5 and is installed inside the small helical frame reinforcing bar 623 on the two diagonal sides thereof. It has a working rebar 532 that penetrates and connects the flange 62 and protrudes to the outside, and the working rebar 532 penetrates the filling hole 531 of the fixed leak-proof unit 53, so that the above-described manufacturing method and steps thereof It is possible to enhance a more structural strength of the hollow thin Karahashiratai 6.

  FIG. 10 is a schematic view showing disassembly and assembly of a joinable hollow column according to another embodiment of the present invention. This is an example of using a connectable hollow thin shell column 10 according to another embodiment of the present invention according to the demand for construction and transportation. Among them, FIG. A is a schematic diagram showing the disassembly of the joinable hollow column body 10, and FIG. B is a schematic diagram showing the assembly of the joinable hollow column body 10. The process of forming the upper thin shell column body 101 and the lower thin shell column body 102 by the forming apparatus 5 in accordance with the actual enforcement situation and demand is the same as the process of the above-described embodiment. In accordance with the steps according to the present embodiment, the upper thin shell column body 101 and the lower thin shell column body 102 have frame column reinforcing bar rods 1011 or spiral reinforcing bar rods (not shown in the drawing) set therein. As shown in FIG. 1 and FIG. 2, the upper thin shell column 101 is composed of a plurality of frame column reinforcement bars, and all the frame columns are disposed on the two diagonal sides, as shown in FIGS. There is a working rebar 1012 that penetrates and connects the reinforcing bar rods and protrudes to the outside, and an insertion hole for joining of an appropriate length is provided at the bottom end thereof, so that the working rebar 1022 of the lower thin-walled column 102 is Further, a suspension ring for the crane 8 is formed by fastening the suspension ring joint portion 1013 to the working rebar 1012 of the upper thin shell column body 101. The lower thin shell column body 102 has the same forming process as that of the upper thin shell column body 101, and penetrates and connects all the frame column reinforcing bar rods to two diagonal sides facing the work reinforcing bar 1012 of the upper thin shell column body 101. The work reinforcing bar 1022 that protrudes to the outside has a length that is the same as the length of the insertion hole for joining at the two diagonals of the bottom end of the upper thin shell column body 101. Yes, and inserted into the insertion hole for joining. When assembling, first, the lower thin shell column body 102 is fixed, and then the upper thin shell column body 101 is lifted by the crane 8 and set so that the insertion hole for the connection is directed to hit the work rebar 1022 of the lower thin shell column body 102, Subsequently, the hollow column 10 that can be joined and fixed by a welding method or other methods is formed. Pre-molding the upper and lower thin shell columns that can be joined can reduce the weight of the molding material and reduce the cost for transportation. Therefore, the joinable hollow pillar 10 is lifted, transported, assembled, etc. This makes it easy to meet the demand for construction.

  In summary, the method and apparatus for producing a hollow thin shell column according to the present invention greatly simplifies the entire construction process by reducing the weight of the molding material by assembling the molding apparatus and performing the above-described steps. Easily lift, transport and assemble the work, further enhance the quality of the beam pillars, greatly improve the production capacity, and the construction method and molding equipment are special, making it economical. It is considered to have an effect and a wide range of applications.

  The above is a detailed description of the present invention. However, the above description is only a relatively preferred embodiment of the present invention, and the scope of the present invention cannot be limited. And it should belong to the claim of this invention to make an equal change and correction based on the claim of this invention.

It is a disassembled perspective view which shows the state by which the columnar reinforcement bar | burr is set inside the shaping | molding apparatus of the hollow thin shell pillar body by one Example of this invention. 1 is an external view showing a state in which a columnar reinforcing bar is set inside a hollow thin shell column forming apparatus according to an embodiment of the present invention. It is a schematic diagram which shows manufacture of the internal peripheral surface part of the manufacturing method of the hollow thin shell pillar body by one Example of this invention. It is a schematic diagram which shows implementation of the manufacturing method of the hollow thin shell pillar body by one Example of this invention. It is a schematic diagram which shows the state which lifts the hollow column body shape | molded with the manufacturing method of the hollow thin shell column body by one Example of this invention, and moves to the planned location which installs a beam column. It is a schematic diagram which shows the state which lifts the hollow column body shape | molded with the manufacturing method of the hollow thin shell column body by one Example of this invention, and moves to the planned location which installs a beam column. It is a schematic diagram which shows the state which lifts the hollow column body shape | molded with the manufacturing method of the hollow thin shell column body by one Example of this invention, and moves to the planned location which installs a beam column. It is a disassembled perspective view which shows the state by which the spiral reinforcement bar | burr is set in the inside of the shaping | molding apparatus of the hollow thin shell pillar body by the other Example of this invention. It is a top view which shows the state by which the spiral reinforcement bar | burr is set in the inside of the shaping | molding apparatus of the hollow thin shell pillar body by the other Example of this invention. It is a schematic diagram which shows decomposition | disassembly and assembly of the hollow column body which can be joined of the shaping | molding apparatus of the hollow thin shell column body by other Examples of this invention.

Explanation of symbols

  5 Forming Equipment, 6 Hollow Thin Shell Column, 7 External Concrete Injection Machine, 8 Crane, 9 Workplace Reinforced Beam Column, 10 Joinable Hollow Thin Shell Column, 51 L Type Upper Steel Formwork, 52 L Type Lower Steel Formwork 53 Standard leak-proof unit, 54 Arc base, 61 Reinforcing bar rod, 62 Spiral rebar rod, 91 Rebar joint, 92 Reinforcement plate, 101 Upper thin shell column, 102 Lower thin shell column, 511 Arc base, 512 articulated edges, 521 arcuate leg seats, 522 articulated edges, 531 filling holes, 532 working rebars, 533 suspension ring joints, 621 large spiral frame reinforcing bars, 622 main spiral frame reinforcing bars, 623 small spiral frame reinforcing bars 624, main rebar of small spiral frame reinforcement, 625 auxiliary reinforcement of small spiral frame reinforcement, 1011 frame column reinforcement rod, 1012 rebar for work, 1013 suspension ring joint, 10 First pillar-shaped reinforcing bar cage, 1022 work for rebar

Claims (16)

An L-shaped upper steel mold having a plurality of arc-shaped leg seats on the outer surface;
An L-shaped lower steel formwork having a plurality of arc-shaped leg seats on the outer surface;
The thickness of the concrete molding is set by the four sides, and two fixed leak-proof units having filling holes for penetrating the reinforcing bars of the reinforcing bar rods on the two diagonal sides,
Consists of a sealed four-way long cylindrical shape, with two open ends and four inner peripheral molding surfaces (a), an inner peripheral molding surface (b), an inner peripheral molding surface (c) and an inner periphery before and after that A forming surface (d) is formed, an L-shaped upper steel formwork and an L-shaped lower steel formwork are assembled, and arcuate leg seats on their outer surfaces are joined together with a circular arc leg seat on the outer surface of the apparatus. By forming, it forms a form that switches the surface by rotation, it is possible to mold one surface at a time,
The hollow thin shell column body is composed of a plurality of frame column reinforcement bars, and has a work reinforcement bar that protrudes outside by penetrating and connecting all the frame column reinforcement bars on its two diagonal sides. An apparatus for forming a hollow thin shell column body, wherein a cage is set inside the L-shaped upper steel mold and the L-shaped lower steel mold, and the working rebar penetrates the filling hole of the fixed leak-proof unit. .   The L-shaped upper steel formwork and the L-shaped lower steel formwork have a plurality of screw holes for tightening fixing bolts on the edge of one outer surface thereof. Forming device for hollow thin shell column.   After the L-shaped upper steel form and the L-shaped lower steel form are assembled, the bolts are tightened into the screw holes of the L-shaped upper steel form and the L-shaped lower steel form to 3. The apparatus for forming a hollow thin shell column according to claim 2, wherein the steel form and the L-shaped lower steel form can be tightly coupled.   The apparatus for forming a hollow thin shell column according to claim 1, wherein the L-shaped upper steel form and the L-shaped lower steel form are integrally formed by a welding method.   When the L-shaped upper steel formwork and the L-shaped lower steel formwork are not yet assembled, the rigid steel wires are provided laterally in the openings on both sides, and the plates on both sides are connected to prevent deformation. The apparatus for forming a hollow thin shell column according to claim 1, wherein   The forming apparatus can replace the inside with a helical reinforcing bar rod, and the helical reinforcing rod rod is composed of several main reinforcing bars, one large helical frame reinforcing bar, and several small helical frame reinforcing bars. The apparatus for forming a hollow thin shell column according to claim 1.   The hollow thin-shell column body according to claim 1, wherein the forming apparatus can form a hollow thin-shell column body that can be formed by joining an upper thin shell column body and a lower thin shell column body in advance and assembling them. Molding equipment.   8. The apparatus for forming a hollow thin shell column body according to claim 7, wherein the upper thin shell column body has insertion holes for joining of appropriate lengths at the bottom ends of two diagonal sides on which work reinforcing bars are arranged. . An L-shaped upper steel mold and an L-shaped lower steel mold are assembled to form a sealed four-sided long cylindrical shape, with two open ends and four inner peripheral molding surfaces (a) Forming an inner peripheral molding surface (b), an inner peripheral molding surface (c), and an inner peripheral molding surface (d), with the arc-shaped leg seat of the inner peripheral molding surface (a) standing on the ground, and the inner peripheral molding surface (A) Stabilize so as to be parallel to the ground, set the reinforcing bar cage structure, which is the internal framework of the hollow thin shell column body, from the open end to the internal space, attach the fixed leak-proof unit to the open end, Step A for forming the molding area of the outer peripheral concrete of the hollow thin shell column body by penetrating the working rebar from the filling hole of the fixed leak-proof unit and projecting outside to complete the assembly of the entire apparatus,
Pour concrete into the inner peripheral molding surface (a) parallel to the ground, and match the thickness of the poured concrete with the thickness set by the fixed leak-proof unit (the thickness of the concrete set by the fixed leak-proof unit Step B that waits until the concrete hardens.
After the concrete on the inner peripheral molding surface (a) has hardened, the surface is switched by rotating the device forward with an arc-shaped leg seat on the outer surface of the device, and the inner peripheral molding surface (b) is made parallel to the ground, Subsequently, the step of pouring concrete into the inner peripheral molding surface (b) parallel to the ground, matching the thickness of the poured concrete with the thickness set by the standard leak-proof unit, and waiting for the concrete to solidify,
According to step C, after the concrete on the inner peripheral molding surface parallel to the ground has hardened, the device is rotated by the arc-shaped leg seat on the outer surface of the device, and the surface is changed to the inner peripheral molding surface (c) and the inner peripheral molding surface. Switch to (d), pour concrete, and wait until the concrete hardens, Step D,
After the concrete of the four inner peripheral molding surfaces (a), the inner peripheral molding surface (b), the inner peripheral molding surface (c) and the inner peripheral molding surface (d) is solidified, the fixed leak-proof unit and the L-shaped upper steel Loosen the formwork and L-shaped lower steel formwork, separate the structure of the device, remove the formwork, join the suspension ring joint and the projecting rebar protruding outside, and form a suspension ring to lift Step E to complete the manufacture of the hollow thin shell column,
A method for producing a hollow thin shell column, comprising:   The L-shaped upper steel formwork and the L-shaped lower steel formwork have a plurality of screw holes for tightening fixing bolts on the edge of one outer surface thereof. Of manufacturing a hollow thin shell column.   After the L-shaped upper steel form and the L-shaped lower steel form are assembled, the bolts are tightened into the screw holes of the L-shaped upper steel form and the L-shaped lower steel form to 11. The method for producing a hollow thin shell column according to claim 10, wherein the steel form and the L-shaped lower steel form can be tightly coupled.   The method for manufacturing a hollow thin shell column according to claim 9, wherein the L-shaped upper steel form and the L-shaped lower steel form are integrally formed by a welding method.   When the L-shaped upper steel formwork and the L-shaped lower steel formwork are not yet assembled, the rigid steel wires are provided laterally in the openings on both sides, and the plates on both sides are connected to prevent deformation. The method for producing a hollow thin shell column according to claim 9, wherein   The forming apparatus can replace the inside with a helical reinforcing bar rod, and the helical reinforcing rod rod is composed of several main reinforcing bars, one large helical frame reinforcing bar, and several small helical frame reinforcing bars. The manufacturing method of the hollow thin shell pillar body of Claim 9.   The hollow thin shell column body according to claim 9, wherein the forming apparatus can form a hollow thin shell column body that is capable of forming an upper thin shell column body and a lower thin shell column body in advance, assembling them, and joining them. Production method.   16. The method of manufacturing a hollow thin shell column according to claim 15, wherein the upper thin shell column has an insertion hole for joining at an appropriate length at the bottom ends of two diagonal sides where the work reinforcing bars are arranged. And manufacturing method.

Images