JP2008138437A - Building form construction method, heat insulation form, and assembly tie - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a building form construction method for constructing a heat insulation form simply, easily, and at a low cost, by using a plurality of form-cum-heat insulation panels P and connection bars J having a length longer than a transverse width of the form-cum-heat insulation panel P. <P>SOLUTION: According to the building form construction method, the plurality of form-cum-heat insulation panels P are successively transversely built in the horizontal direction on an installation surface to erect a first-stage form-cum-heat insulation panel group P(1), and the connection bar J is inserted into upper surfaces of the form-cum-heat insulation panels P so as to be astride a joint 10 between the same, followed by erecting a second-stage form-cum-heat insulation panel group P(2) on the connection bar J. In this manner by repeatedly carrying out the above procedures, internal and external heat insulation forms Mi, Mo are constructed, and the mutually corresponding connection bars J of the internal and external heat insulation forms Mi, Mo are coupled together by a plurality of assembly ties A. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a method for constructing a formwork for building and a heat insulation formwork and an assembly tie used in the method for constructing a concrete frame of a building.

Conventionally, in a building formwork for constructing a concrete frame, instead of a conventional plywood concrete panel as a formwork panel, using a synthetic resin formwork combined heat insulation panel, after the construction of the concrete frame, It is already known (see Patent Document 1) that the heat insulating panel for both the formwork and the heat insulating panel is used as it is without removing it from the concrete frame.
JP 2006-169922 A

  By the way, in the construction method of the building formwork using the conventional combined formwork heat insulating panel, a connection bar (T bar) having the same width as this is inserted and connected in advance to one surface of the heat insulating panel. When the heat insulation panel is cut into a predetermined dimension together with the connecting bar at the construction site, and when the heat insulation panels are connected to each other, other connection hardware is required.

  For this reason, the insulation panel is to be packed and transported after inserting and joining the connecting bars at a factory, etc., and the packaging volume is increased and the transportation cost is increased. The operation of cutting together with the connecting bar is troublesome, and other connecting hardware is required to connect the heat insulating panels, so that there is a problem that the cost increases as a whole.

  This invention is made | formed in view of this situation, and it aims at providing the construction method of the novel construction formwork which solved the said problem, and the heat insulation formwork and assembly tie which are used for this method .

In order to achieve the above-mentioned object, the invention according to claim 1 is a construction method of a building form using a heat insulating panel for formwork,
Separate multiple formwork combined heat insulation panels and multiple connection bars longer than the width of those formwork combined heat insulation panels and transport them to the construction site.
A plurality of formwork / heat insulation panels are installed on the installation surface in the horizontal direction, and then stacked in sequence in a row to build a first-stage formwork / heat-insulation panel group. The first-stage formwork / heat insulation panel group Insert the connecting bar across the joints of the multiple formwork combined heat insulation panels on the upper surface,
Next, the lower surfaces of the second-stage plural formwork / heat insulation panels are sequentially inserted on the connection bar across the joints of the panels, and the connection bar is placed on the first-stage formwork / heat insulation panel group. The second-stage formwork combined heat insulation panel is connected to the horizontal direction in the horizontal direction, and the second-stage formwork combined heat insulation panel group is built by sequentially stacking in a row. On the upper surface of the group, insert another connecting bar across the joints of those mold and heat insulation panels,
Next, the lower surface of the plurality of formwork / heat insulation panels in the third stage is inserted into another connecting bar across the joints of the panels, and the other part on the plurality of formwork / heat insulation panels in the second stage The third-stage heat-insulating panel combined with the third stage is connected horizontally through the connecting bar, and the third-stage heat-insulating panel group combined with the third-stage is built by sequentially stacking in a row.
By repeating the above operations, the inner and outer heat insulation molds are constructed by opening the concrete placement space of the heat insulation molds, and the corresponding connecting bars of the inner and outer heat insulation molds are integrated by a plurality of assembly ties. The construction method of the formwork for construction characterized by combining with.

Moreover, in order to achieve the said objective, invention of Claim 2 is a heat insulation formwork used for the construction method of the construction formwork of Claim 1, Comprising: A some heat-insulation panel combined with a formwork, It consists of a plurality of connecting bars that are longer than the width of those formwork combined heat insulation panels,
A group of heat-insulating panels for formwork combined with a plurality of heat-insulating panels combined with formwork in the horizontal direction, and stacked in multiple stages in the vertical direction across the connecting bar. The horizontal formwork and thermal insulation panel group of the horizontal formwork and thermal insulation panel group is inserted into the slit of the upper and lower formwork and thermal insulation panel across the joints of the thermal insulation panel and the horizontal formwork and thermal insulation panel group. It is characterized by being combined.

Furthermore, in order to achieve the above-mentioned object, the invention according to claim 3 is an assembly tie used in the construction method for building form according to claim 1,
A straight part and both ends of the straight part are characterized by a locking part that is bent at an acute angle with respect to the straight part.

  According to the first aspect of the present invention, since the heat insulation form can be built using a plurality of heat insulation panels and a plurality of connecting bars longer than the width of the heat insulation panel, the construction cost of the heat insulation form is reduced. It can be greatly reduced.

  Also, the heat insulation panel and the connecting bar can be separated and packed and transported, and the heat insulation panel and the connecting bar are integrated on the site, so that the cutting work is not required, so the transportation cost can be reduced, and the heat insulating formwork Productivity can be improved.

  According to the second aspect of the present invention, since the heat insulation mold can be built with a plurality of heat insulation panels and a connecting bar longer than the horizontal width of the heat insulation panel, the structure of the heat insulation mold is simplified. In particular, the connecting bar can be used to connect the heat insulating panels of the formwork combined with each other across the joints of the adjacent heat insulating panels of the formwork combined with each other. It is done.

  Further, according to the third aspect of the present invention, the assembly tie for connecting the inner and outer heat insulation molds has the engaging portion that is bent at an acute angle from the straight portion of the assembly tie. It is possible to increase the bonding strength of the heat insulating formwork.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below based on examples of the present invention illustrated in the accompanying drawings.

  FIG. 1 is a perspective view showing a state in the middle of installation of a heat-insulating formwork, FIG. 2 is an exploded perspective view of a heat-insulating panel for a formwork, a T-bar and an assembly tie, and FIG. 4 is an enlarged cross-sectional view taken along line 4-4 in FIG. 3, FIG. 5 is an enlarged view of a virtual circle encircled portion shown in FIG. 4, and FIG. 6 is a cross-sectional view taken along line 6-6 in FIG. 7 is an enlarged view of a virtual circle encircled portion as viewed in the direction of arrow 7 in FIG. 4, and FIG.

  The heat insulating form M for constructing the concrete frame wall is composed of an outer heat insulating form Mo and an inner heat insulating form Mi, which are provided facing the concrete placement space S.

  Each of the heat insulation molds Mo and Mi is composed of a plurality of mold-frame heat insulation panels P and a plurality of connecting bars (T bars) J, which are joined by a plurality of assembly ties A.

  First, the structure of the heat-insulating panel P (hereinafter referred to as a heat-insulating panel) that forms the main part of the heat-insulating form M will be described.

  The heat insulation panel P is formed in a horizontally-long rectangular plate shape, is made of a hard foamed synthetic resin material such as polystyrene and polyurethane, which is highly heat-insulating and lightweight, and has an appropriate size (in this embodiment, a width of 120 cm). The outer surface 1 and the inner surface 2 are both flat surfaces. A large number of fine grooves 3 in the vertical direction are formed on the inner surface 1 and the outer surface 2, and these fine grooves 3 are used for dimension adjustment when the heat insulation formwork M is built. As shown in FIGS. 4 to 6, an upper slit 4 and a lower slit for inserting a connecting bar (T bar) J, which will be described later, over the entire length of the upper and lower surfaces of the heat insulating panel P so as to coincide with each other in the vertical direction. 5 are respectively cut in the vertical direction, and a plurality of vertical ridges 6 having an arcuate section are provided in parallel on the inner surface of the slits 4 and 5 at intervals in the horizontal direction. Further, on the inner surface side (the side facing the concrete placement space) of the upper surface of the heat insulation panel P, a step protrusion 7 for determining the position of the T bar described later is integrally projected over the entire length. Further, a stepped recess 8 is formed on the lower surface of the heat insulating panel P from its inner surface side (side on which concrete contacts) to the middle of the thickness direction over the entire length thereof. When the heat insulation mold M is stood up, the assembly tie A is received.

  In addition, the insertion part of the starting base B mentioned later is inserted in the lower slit 5 of the heat insulation panel P of the lowest step so that insertion / extraction is possible.

  As shown in FIGS. 1 and 2, the connecting bar J (hereinafter referred to as “T bar”) is formed of a hard synthetic resin material in a strip shape that is long in the lateral direction, and its length is a multiple of the lateral width of the heat insulating panel P. As will be described later, a plurality of heat-insulating panels P that are horizontally stacked can be integrally connected across the seam 10 as described later. As shown in FIG. 5, the T bar J is formed in a T-shaped section from a vertical portion 11 and a horizontal portion 12 projecting at a right angle from the middle of the vertical portion 11. A plurality of insertion holes 13 into which an assembly tie A described later is inserted are formed. The T bar J is embedded and fixed in the heat insulating panel P. Further, a plurality of locking claws 14 having a triangular cross section extending in the longitudinal direction are provided on the inner surface of the vertical portion 11 of the T bar J so as to project.

  The assembly tie A that connects the outer heat insulating form frame Mo and the inner heat insulating form frame Mi is formed in a shaving shape by a metal material such as an iron material, and the straight portion 20 and the straight portion 20 The left and right engaging portions 21 and 21 are bent at acute angles from both ends, and these engaging portions 21 and 21 are inclined slightly inward with respect to the straight portion 20 rather than at right angles as shown in FIG. (An inclination angle of about 5 °). By setting the bending angle in this way, the assembly tie A is difficult to be removed from the insertion hole 13 of the T bar J.

  Next, with reference to mainly FIG. 8, the construction method of the heat insulation form M which consists of the heat insulation panel P, T bar J, and the assembly tie A is demonstrated.

  First, rebar construction (not shown) is performed at a predetermined location on the installation surface prior to formwork, and this rebar work is performed in the absence of the outer and inner heat-insulating formwork Mo and Mi, and the work is easy. It is.

  Next, the outer and inner heat insulation molds Mo and Mi are constructed using the heat insulation panel P, the T bar J, and the assembly tie A.

  The plurality of heat insulation panels P and T bars J are transported separately to the construction site.

  Next, a procedure for installing the inner and outer heat insulation molds Mi and Mo will be described.

  (1) As shown in FIG. 8 (a), on the starting base B (see FIG. 1) fixed on the inner and outer installation surfaces (concrete foundation or concrete slab), the first step (the lowermost step) A plurality of heat insulating panels P are sequentially stacked in the vertical direction with their longitudinal directions turned sideways. An end material P ′ is cut out from the heat insulation panel P at a half end portion generated between the total dimension L1 of the plurality of heat insulation panels P to be horizontally stacked and the horizontal dimension L2 of the heat insulation mold M to be constructed. The material P ′ is horizontally stacked on the half end portion. Thereby, the lowermost heat insulation panel group P (1) is built.

  The inner and outer lowermost thermal insulation panel groups P (1) are connected by inserting engaging portions 21 of a plurality of assembly ties A into a plurality of insertion holes 13 formed in the T-bars J. Is done.

  (2) Next, as shown in FIG. 8B, the lower half of the vertical portion 11 of the T bar J is formed on the upper surface of the first-stage heat insulation panel group P (1) from the end material P ′ side. Plug in and connect. Since the long T-bar J straddles the end material P ′ and the plurality of joints 10 of the plurality of heat insulation panels P, the heat insulation panel P and the end material P ′ are prevented by the T bar J without the seam 10 being displaced or released. The seam 10 can be firmly bonded. At this time, the plurality of locking claws 14 formed on the T bar J bite into the heat insulating panel P, and the bonding strength thereof is further increased. Further, the T bar J is slidable in the longitudinal direction with respect to the first-stage thermal insulation panel group P (1), and the longitudinal position of the thermal insulation panel group P (1) can be adjusted.

  The shorted portion of the T bar J with respect to the lateral dimension of the heat insulating formwork M is inserted and joined to the upper surface of the heat insulating panel P by the end material J ′ cut from the other T bar J.

  (3) Next, as shown in FIG. 8 (c), a plurality of second-stage heat insulation panels P2 are sequentially stacked on the T bar in the vertical direction with the longitudinal direction thereof being set sideways. The lower slit 5 on the lower surface of the heat insulating panel P is inserted and joined to the upper half portion of the vertical portion 11 of the T bar J. As in FIG. 8A, the half-end portion generated between the total dimension L <b> 1 of the plurality of heat insulation panels P stacked horizontally and the horizontal dimension L <b> 2 of the heat insulation formwork M to be constructed is more end material than the heat insulation panel P. P ′ is cut out and the end material P ′ is horizontally stacked on the half end portion. Thus, the second-stage heat insulation panel group P (2) is built on the T bar J.

  The inner and outer second-stage heat insulation panel groups P (2) are inserted into the plurality of insertion holes 13 formed in the T-bars J by inserting the locking portions 21 of the plurality of assembly ties A into the insertion holes 13. Connected.

  (4) Next, as shown in FIG. 8D, the second-stage T-bar J is inserted and connected to the upper surface of the second-stage thermal insulation panel group P (2) from the end material P ′ side. Since the long T bar J straddles the end material P and the plurality of joints 10 of the plurality of heat insulation panels P, the joint 10 of the heat insulation panel P is not displaced or separated by the T bar J. Can be firmly bonded. At this time, the plurality of locking claws 14 formed on the second-stage T-bar J bite into the heat insulating panel P, and the coupling strength is further increased. Further, the T bar J can slide in the longitudinal direction with respect to the second-stage heat insulation panel group P (2), and the position adjustment with respect to the heat insulation panel group P (2) is possible.

  Insufficient portion of the T bar with respect to the heat insulation formwork, the end material J cut from the other T bar J is inserted and joined to the upper surface of the heat insulation panel P.

  By repeating the operations shown in FIGS. 8C and 8D on the second-stage T-bar J, the third-stage thermal insulation panel group P (3) and the n-th (top) thermal insulation panel. By sequentially building the group P (n) through the T-bar J, the inner and outer heat insulation molds Mi, Mo are constructed as shown in FIG. be able to.

  The inner and outer third-stage heat insulation panel group P (3) and subsequent n-th heat insulation panel groups P (n) are connected to the plurality of insertion holes 13 formed in the T bar J corresponding to them. It is connected by inserting the locking portions 21 of the plurality of assembly ties A.

  As described above, when the inner and outer heat insulation molds Mi and Mo are built, concrete is placed in the concrete placement space S between the heat insulation molds Mo and Mi to construct a concrete frame. . After the construction of the concrete frame, the inner and outer molds Mi and Mo are used as they are as heat insulation walls of the building without being removed.

  Thus, according to the present invention, each of the plurality of joints 10 of the heat insulation panel groups P (1) to P (n) of each stage that are horizontally stacked and sequentially built is covered with the heat insulation panel P across the joint 10. Are joined by a long T-bar J, so that the plurality of joints 10 of the heat-insulating panels P of the heat-insulating panel groups P (1) to P (n) at each stage are firmly joined by the T-bar J. And they will not be displaced or released. In addition, the workability of installing the heat insulation formwork M is improved as compared with a known one in which the joint 10 of the heat insulation panel P is joined by another joining means (see Patent Document 1). The installation cost of the formwork M is significantly reduced.

  In addition, the heat insulation panels P and T bars are produced separately in factories, etc., and are separated and transported to the construction site, improving their productivity and reducing their packing volume. Thus, their transportation efficiency can be increased.

  As mentioned above, although the Example of this invention was described, this invention is not limited to the Example, A various Example is possible within the scope of the present invention.

A perspective view showing a state in the middle of installation of a heat insulating formwork Disassembled perspective view of heat-insulating panel for formwork, T-bar and assembly tie 1 arrow view of FIG. Enlarged cross-sectional view along line 4-4 in FIG. Enlarged view of the virtual circle encircled part shown in FIG. Sectional drawing which follows the 6-6 line of FIG. Enlarged view of the virtual circle encircled portion seen in the direction of arrow 7 in FIG. Diagram showing the installation procedure of a heat-insulated formwork

Explanation of symbols

4 ... Slit (Upper slit)
5 ... Slit (lower slit)
10 ... Seam 21 ... Locking part (Assembly tie A)
J: Connection bar (T bar)
M ··························································································································· use as a mold frame
P (1): Insulation panel group for the first-stage formwork P (2) ... Insulation panel group for the second-stage formwork P (3) ... Insulation panel for the third-stage formwork Group P (n) ... n-stage formwork combined heat insulation panel group

Claims (3)

It is a construction method of a building form using a heat insulating panel that also serves as a form,
A plurality of combined formwork heat insulating panels (P) and a plurality of connecting bars (J) longer than the width of the combined formwork heat insulating panels (P) are separated and transported to the construction site.
A plurality of combined formwork and heat insulation panels (P) are installed on the installation surface in the horizontal direction, and sequentially stacked in a row to install the first-stage formwork and heat insulation panel group (P (1)). Insert the connecting bar (J) across the joints (10) of the plurality of mold-use and heat insulation panels (P) on the upper surface of the stage-form heat-treatment panel group (P (1)),
Next, on the connecting bar (J), the lower surfaces of the second-stage heat-insulating panels (P) for the formwork are sequentially inserted across the joints (10) of the panels (P), The second-stage formwork / heat insulation panel (P) is connected horizontally to the formwork / heat-insulation panel group (P (1)) of the eye via the connecting bar (J), and sequentially stacked in a row. The second-stage formwork / heat insulation panel group (P (2)) is built, and another connecting bar (J) is placed on the upper surface of the second-stage formwork / heat insulation panel group (P (2)). Insert them across the seam (10) of those combined formwork and insulation panels (P),
Next, the lower surfaces of the third-stage heat-insulating panels (P) for the third stage are inserted into other connecting bars (J) across the joints (10) of the panels (P), and the second-stage The third-stage formwork / heat insulation panel (P) is connected to the plurality of formwork-use heat insulation panel groups (P (2)) via other connecting bars (J) in the horizontal direction, and sequentially stacked in a row. Then, install the third-stage formwork combined heat insulation panel group (P (3)),
By repeating the above operations, the inner and outer heat insulation molds (Mi, Mo) are constructed by opening the concrete placement space (S), and the inner and outer heat insulation molds (Mi, Mo) correspond to each other. A construction method for a formwork for building, wherein the connecting bars (J) are joined together by a plurality of assembly ties (A). It is a heat insulation formwork used for the construction method of the building formwork of Claim 1, Comprising: It is longer than the width of several formwork combined heat insulation panel (P) and those formwork combined heat insulation panels (P) It consists of multiple connecting bars (J),
A group of combined formwork and heat insulation panels (P (1) to P (n)), in which a plurality of formwork and heat insulation panels (P) are successively stacked in the horizontal direction, sandwich the connection bar (J). The connecting bars (J) are stacked in a plurality of stages in the vertical direction, and the connection bars (J) are each of the horizontal formwork and thermal insulation panel group (P (1) to P (n)) in the upper and lower stages. Across the joint (10) and inserted into and joined to the slits (4, 5) of the upper and lower formwork / heat insulation panels (P), and the horizontal form and heat insulation panel group (P (1) to P (n)) is integrally bonded to form a heat insulating mold. An assembly tie used in the construction method for a building form according to claim 1,
An assembly tie comprising a straight portion and locking portions (21, 21) bent at an acute angle with respect to the straight portion at both ends of the straight portion.

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