JP2008082117A - Support metal fitting for curing sheet and construction method of reinforced concrete foundation using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a supporting technology for a curing sheet which rapidly carries out the drainage of water and snow in rain or snow accumulation and simply quickly performs the removal or the reinstallation of the curing sheet in the work of levee-crown repair, a levee-crown leveler or the like. <P>SOLUTION: The support metal fitting 1 for the curing sheet comprises an attaching part 2 which enables a predetermined amount of ready-mixed concrete to be placed thereto as concrete foundation B and is provided with a pinching mechanism 3 for temporal fixing that is detachably attached to the top edge frame P1 of one form panel P of a pair of form panels P, P which are opposite with each other, a curvedly formed support rod part 4 which has a lower end 41 integrated with and supported by the attaching part 2 and has an upper end side extending upward from the attaching part 2 and reaches an upper position with a predetermined height dimension H in the vicinity of the center between the pair of the opposite form panels P, P and a bearing part 45 which is integrated with the vicinity of the upper end 44 of the support rod part 4 and enables a transverse material 5 for curing sheet 6 saddle latching to be detachably/attachably fittably formed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

    The present invention has all fields related to the construction of reinforced concrete as its technical field, and in particular, manufactures of equipment and instruments necessary for the construction work as well as fields related to the curing technology of reinforced concrete foundations. From the field of providing and selling, materials required for those materials, machinery and parts, such as wood, stone, various fibers, plastics, various metal materials, etc., and electronic components incorporated in them In general, industrial machinery such as the field of control-related equipment that integrates them, the field of various measuring instruments, the field of such equipment, the power machine that moves the equipment, the field of electric power and energy as the energy, and the field of oil Tested and researched all the fields that are collectively called, facilities and instruments, fields related to display, sales, import and export, Results of their use, facilities for making them, fields related to the collection and transportation of garbage generated by the operation of equipment, etc., as well as recycling fields that efficiently reuse these garbage There are no new technical fields that cannot be envisaged, and there are no unrelated technical fields.

(Points of interest)
Reinforced concrete foundations must ensure the quality that can support the foundation of the building for a long time with sufficient strength and precision. A series of operations such as hammering, bar arrangement and formwork panel assembly, ready-mixed concrete placement, top leveler sinking and curing, formwork dismantling and leveling must be performed under appropriate conditions. Especially in the curing process, the weather conditions such as seasonal temperature and rain and snow will greatly affect the strength and appearance after completion. It is necessary to secure conditions such as heat retention, waterproofness, and moisture retention within an appropriate range and to prevent a decrease in strength and occurrence of cracks.

    These curing sheets must be attached by pouring them carefully so that they do not adhere to and seal from the top of the reinforced concrete foundation. In order to prevent such an adverse effect, there is a risk that deformation of the top end or a significant decrease in strength may occur without satisfying the desired curing conditions such as applying a load to the top end before curing. As shown in the perspective view of the curing plate support plate, the width dimension direction of the scaffold plate 5 having a length substantially coincident with the basic top end length is set vertically, and the lower edge thereof is placed at predetermined intervals in the length direction. A support plate for a curing sheet integrated so as to be able to rotate around a horizontal axis by nailing the central portion of the strip plate 51 having a length slightly exceeding the interval between the upper edge edges of the mold panels P, P 5, each strip 51, 51, ... Both ends of the mold panel P are arranged in parallel and opposite to each other, and are placed so as to be bridged between the upper edge of the P, and the mold sheet panels P on both sides from above the support plate 5 for the curing sheet, As shown by a two-dot chain line in FIG. 5, the curing sheet 6 has been mounted on the P in a hanging manner so as to have a drainage and snow removal function.

    However, such a curing sheet support plate 5 is unstable such that it is placed only on the upper edge between the formwork panels P and P and is easily placed by an operator's careless contact. There is a risk of overturning, and it becomes an obstacle when repairing the top edge of the foundation B or removing the top edge leveler by peeling off the curing sheet 6 during curing, and the support sheet 5 for the curing sheet is attached each time. Unless it was removed, it was difficult to accurately perform these operations, and had a fatal defect that the efficiency of the curing operation was deteriorated.

(Conventional technology)
Even in such cases, a covering portion that covers the upper portion of the foundation placement space, such as the one proposed in Japanese Patent Application Laid-Open No. 2002-121893 “Coverment Material for Fabric Foundation”, as a measure to overcome this, And an adherent portion that is continuous downward from the end portion of the covering portion and is attached to the outer surface on the upper end portion side of the mold frame that is installed at the outer edge portion of the foundation placing space. The covering section is formed from a continuous foam, and the overall cross-sectional shape is a substantially arc shape such that the central portion of the covering section protrudes upward, and the end section on the opposite side of the covering section from the covering section is It is formed in a circular shape, covers the space between the upper edges of the formwork panel in a sealed manner, can also support the protrusion of anchor bolts, and can be firmly attached to the extent that it cannot be removed even by blowing strong winds, JP 2003-293380 A "Basic Cleat curing method and curing cover "As proposed in the invention, the curing cover is divided into a side cover member and a top cover member, the side cover member is made of a board, and the heater is provided on the inner surface side. The top cover member is made of sheet or mat, and the side cover member and the top cover member are connected by a hook-and-loop fastener and can be heated by a heater in winter. In some cases, it is easy to open and close the top cover member with a hook-and-loop fastener.

The former “curing material for fabric foundation” invention has a substantially arc-shaped cross-sectional shape that protrudes upward at the center of the covering that covers the top edge of the reinforced concrete foundation, ensuring rainwater drainage and snow drainage In addition, it is supposed that the end cross section opposite to the covering part of the adherend part is formed in a circular shape to obtain a mounting force that is not blown by strong winds. When performing an end-leveler sinking operation, etc., there is a concern that it cannot be easily removed and the workability thereof is deteriorated, and the latter “base concrete curing method and curing cover” invention is a side cover. Although the member is equipped with a heater, and it is possible to achieve proper curing by heating in the winter period, the top cover member is made of a sheet or mat with heat insulation, so it can be damaged by rain or snow Basics Sag recessed in a Nkurito crest on, or no longer give serve curing gone in contact with the pouring concrete surface was achieved suffer the disadvantage such as there is a possibility that hinder their removal operation.
(1) JP 2002-121893 (2) JP 2003-293380 A

(Awareness of problems)
In this way, with the technical means such as the “fabric foundation curing material” proposed in the past, once it is installed between the upper edges of the formwork panel, it can be used for repairing the top edge or sinking the top edge leveler. In addition, for example, it is difficult to remove easily by one operator's hand, and the improvement of attachment / detachment workability is expected. In this case, the top cover member can be easily attached / detached using a hook-and-loop fastener, but if rainwater accumulates or snow accumulates on the top cover member, the top surface of the concrete foundation There is a risk that the lower surface of the cover member may come into contact with the cover member and be deformed by applying a load, or the heat retention may be impaired to prevent the concrete from being hardened, and further improvement is required.

(Object of invention)
Therefore, the present invention can drain and remove snow quickly even if it encounters rainfall or snowfall, and it is simple and quick even for a small number of people when performing work such as top repair and top leveling. From the judgment that it is not possible to develop a support technology for the curing sheet that can be removed and reattached, the development and research have begun quickly, trial and error over many years, and many prototypes and experiments. As a result of repeating the above, we have finally succeeded in realizing a new structure-supporting bracket for a curing sheet and a new construction method for a reinforced concrete foundation using the same, as shown in the drawings below. The configuration will be described in detail together with an embodiment representative of the present invention.

(Structure of the invention)
As will be clearly understood from the embodiments representing the present invention shown in the drawings, the support fitting for a curing sheet of the present invention basically comprises the following configuration.
In other words, a predetermined amount of ready-mixed concrete is cast for a concrete foundation, and is used for temporary fixing that can be detachably attached to the upper edge frame of one of the pair of formwork panels in a pair of opposite shapes. A mounting part provided with a clamping mechanism, and a lower end thereof are integrated and supported by the mounting part, and the upper end of the upper part extends from the mounting part and is near a center between a pair of formwork panels, and is located above a predetermined height. A support portion that is curved so as to reach a position, and a support portion that is integrated in the vicinity of the upper end of the support portion so that a horizontal member for hanging a curing sheet can be detachably fitted. It is a support metal fitting for a curing sheet which makes the composition made into a summary.

    In other words, the structure of the support bracket for the curing sheet having the basic structure described above, a predetermined amount of ready-mixed concrete is cast for the concrete foundation, An attachment part having a detachable temporary fixing clamping mechanism and a lower end thereof are integrated and supported by either one of the upper and lower edge frames of the formwork panel, and the upper end is attached to the upper part of the formwork panel. A support portion that is curved and formed so as to reach a position above a predetermined height near the center between a pair of opposing formwork panels, and an upper end portion of the support portion, and is used for hanging a curing sheet. It is composed of a support part formed so that the horizontal member can be detachably fitted, and at an appropriate interval along the upper edge frame of one of the pair of formwork panels in a pair of opposite shapes. Attach the mounting part to each Set up several pieces, lay a horizontal member so that it can be bridged to each support part, and cover the top of the filled concrete so that the back of the form panel on both sides from the top of the horizontal member is cured. This is a curing sheet support fitting that is set so that the sheet can be covered in a hanging shape.

(Related invention)
In relation to the above-mentioned support bracket for a curing sheet, the present invention includes a method for constructing a reinforced concrete foundation using the same.
That is, using a plurality of formwork panels, after the formwork panel installation process for assembling so as to form a vertical facing wall so as to set up a forming space for a reinforced concrete foundation, the forming space is filled with ready-mixed concrete. At the same time as the concrete filling process, or at any stage before or after the concrete filling process, a mounting portion of the support bracket for the curing sheet is attached to each of the upper edge of each form panel arbitrarily selected so as to be appropriately spaced. A support bracket mounting process for temporary fixing in a removable manner, and a horizontal material mounting process for mounting a horizontal material between the support portions of the support brackets for the curing sheet, and a subsequent curing sheet covering / curing process By covering the curing sheet with the back of the formwork panels on both sides so that it can be hooked from above the horizontal material, covering and curing the concrete for a predetermined time, The above-mentioned curing sheet support bracket, which is set to withdraw the curing sheet, horizontal member, curing sheet support bracket, formwork panel, and various fastening brackets from the foundation concrete that has completed the above, It is the construction method of the reinforced concrete foundation used.

    More specifically, a plurality of formwork panels are used to form a vertical facing wall so as to set up a forming space for a reinforced concrete foundation. A curing sheet is placed on each upper edge of each form panel that is arbitrarily selected so as to be spaced at an appropriate interval, either at the same time as the concrete filling process in which the concrete is filled or before or after that. A support bracket mounting step for temporarily fixing the mounting portion of the support bracket for attachment and detachment, and a horizontal member mounting step for mounting a horizontal member between the support portions of the support bracket for the curing sheet, Curing sheet covering and curing process, covering the curing sheet with the back of the formwork panels on both sides so that it can be hooked from above the horizontal material, covering the concrete for a specified time, curing Let At an appropriate time during the training, part or all of the curing sheet is peeled off, and the upper part of the formwork panel is inspected, repaired and the top edge of the concrete foundation from between the upper edge of the formwork panel and the horizontal member supported horizontally. Supply the leveler, cover the curing sheet again, complete the curing, and from the basic concrete that has been cured by the withdrawal process, curing sheet, horizontal material, curing sheet support bracket, formwork panel, and various tight fittings It becomes the construction method of the reinforced concrete foundation which comprises making it withdraw.

    As described above, according to the support bracket for a curing sheet of the present invention, it can be removably and temporarily fixed to any one of the upper end edge frames of the pair of mold frames in a pair of opposite shapes. A mounting part equipped with a clamping mechanism shall be provided, and it will be installed and removed easily and quickly at an arbitrarily selected appropriate position on the upper edge frame of the formwork panel on which a predetermined amount of ready-mixed concrete has been placed for concrete foundation. In the unlikely event that the weather changes suddenly, such as immediately after placing the ready-mixed concrete, it is possible to quickly and easily install the curing sheet as a countermeasure. It is possible to achieve and enable excellent quality, and the lower end is integrated and supported by the mounting part, and the upper end extends from the mounting part. A support part that is curved so as to reach a position above a predetermined height near the center between the pair of formwork panels facing each other, and a horizontal structure that is integrated near the upper end of the support part and is used for hanging the curing sheet It is assumed that there is a support part that is formed so that the material can be detachably fitted, and the curing sheet is formed from a horizontal material that spans between the support parts of a plurality of support members for the curing sheet. The top edge of each formwork panel placed on the roof is supported by a general roof shape toward the side, so that rain and snow can quickly flow down or slide out of each formwork panel. In addition to preventing moisture from entering the top edge, it also prevents stagnation and accumulation of rainwater and snow, adds unnecessary load to the top edge made of ready-mixed concrete immediately after filling, leaves deformed parts after hardening, Make sure to prevent the occurrence In which Su features is obtained that can be.

    In addition, the supporting part is formed to be curved so as to reach a position above a predetermined height near the center between a pair of formwork panels facing each other, and it is possible to prevent the attached curing sheet from being damaged. In addition, it is possible to prevent an accident that may cause the operator to catch clothes or feet or damage various hoses and cords during handling.

    Furthermore, the back surface of the molding surface wall of either one of the pair of mold frame panels in which the mounting portion is in the shape of a pair, the lower surface of the horizontal wall of the upper edge of the molding surface wall And a roll-off prism column having a joint surface wall that is opposite to the molding surface wall of the upper edge horizontal plane wall and can be brought into contact with each of the small folded curved walls bent vertically downward, Either the outer vertical plane wall that is opposite to the side that is joined to the back of the panel, or the lower horizontal plane wall that is opposite to the side that is joined to the lower surface of the horizontal wall at the upper edge of the molding surface wall The fitting frame has a fitting block extending from the other side, and the tip frame is placed between the upright guide portion rising vertically in the supporting portion and the fitting block upper surface wall. The upper edge of the panel is a temporary fastening plate bent downward so that the horizontal plane wall can be clamped. The engaging / disengaging hole drilled in the thickness direction of the base end in the middle of the base is movable up and down, and when the horizontal wall of the upper edge of the formwork panel is sandwiched between the upper wall of the fitting block, the elastic force In the case of loosely fitted so that it can be temporarily fixed, the fitting block is fitted into the lower edge of the upper edge of the mold panel made of various metals or reinforced plastic in a fitting manner and temporarily fixed. Lower the plate along the upright guide part that rises vertically in the support part, and sandwich the upper edge edge horizontal plane wall of the formwork panel between the tip of the temporary fixing plate and the upper side wall of the fitting block The advantage of being able to be temporarily fixed

    In addition, the corner portion that is the upper outer arrangement of the fitting block is engaged with the small folded curved wall that is bent vertically downward of the formwork panel, enabling more accurate positioning and fixing. Efficient attachment / detachment can be realized, and in the case where a resin-made covering portion is formed at the base end of the temporary fixing plate, the hard corner portion directly contacts the curing sheet attached from above. In addition to being able to prevent damage to the curing sheet more reliably, the support part is formed in a generally U-shape and can engage and support the appropriate place of the wooden through-plate that serves as a horizontal member. In such a case, it is possible to prevent the condensation in the curing sheet due to the hygroscopicity of the wood, and there is no condensation on the horizontal material itself. Drop a drop of water on the edge Effect that adversely affecting the curing of REITs can be more reliably prevented is what can be expected.

    On the other hand, according to the construction method of the reinforced concrete foundation using the support bracket for the curing sheet of the present invention, after the form panel installation step, the concrete filling step of filling the ready space into the molding space is performed, or At any stage before or after that, a support fitting mounting step for detachably temporarily fixing the mounting portion of the support bracket for the curing sheet to each of the upper end edges of each formwork panel arbitrarily selected so as to be appropriately spaced, In addition, a horizontal material mounting process is carried out in which a horizontal material is mounted between the support parts of the support brackets for the curing sheet, and then the hanging material is hung from above the horizontal material by covering and curing the curing sheet. Cover the curing sheet on both sides of the formwork panels on both sides, cover the concrete for a specified period of time, cure it, and cure it from the basic concrete that has been cured by the removal process. It is possible to cure the concrete filled in the molding space under the appropriate temperature, humidity and environment by removing the support bracket, curing sheet support bracket, form panel and various fittings. In addition, the mounted curing sheet has a roof shape so that the back of the formwork panels on both sides are hooked on the horizontal members placed between the support parts. Snow can be removed quickly, the top shape of the concrete foundation can be protected, and the attached curing sheet can be removed simply to remove the installed upper edge of the formwork panels on both sides and the side mounted between the supports. Through the space between the bottom edge of the base material, repair of the top edge and top edge leveler work can be performed smoothly without any trouble, and the work of re-attaching the curing sheet is easy and more efficient. Realize work It is possible to exhibit the characteristic of that.

(Supporting bracket for curing sheet)
In implementing the present invention having the configuration as described above, the best or desirable mode will be described.
The mounting part has a bearing part that can mount a part of the transverse material in a roll shape and a support part that supports the support part. The upper end of the formwork panel that is arbitrarily selected and fulfills the function of being able to be temporarily and detachably attached to the upper end edge of one of the paired formwork panels. The support part and the support part must be able to be fixed temporarily and securely in a desired posture with respect to the edge frame, and a pinching mechanism such as a washing pin type having a spring or a vise type having a screw. It should be easy and quick to attach and detach, but it can also be attached to and fixed to a magnetic metal formwork panel by magnetic force.

    The clamping mechanism is attached to and detached from the upper edge frame of one of the pair of formwork panels, which is a pair of formwork panels in which a predetermined amount of ready-mixed concrete is cast with the mounting part as a concrete foundation It fulfills the function of being able to be temporarily fixed freely, and supports with sufficient strength the support part that can mount a part of the horizontally-moving horizontal support material and the support part that supports the support part. As described above, it can be a laundry pin type having a spring or a vise type having a screw as described above. The back surface of the molding wall of one of the pair of formwork panels in which the ready-mixed concrete is placed and facing each other, and the horizontal wall at the upper edge of the molding surface wall And the upper edge horizontal plane It is formed on a roll-off prism type having a joint surface wall that can be brought into contact with each of the small curved surface walls bent vertically downward, opposite to the molding surface wall, and joined to the back of the formwork panel. It is supported from either the outer vertical plane wall that is opposite to the outer wall or the lower horizontal wall that is opposite to the upper edge of the molding surface wall. The upper part of the formwork panel has a horizontal plane wall between the top edge wall and the fitting block upper surface wall with respect to the upright guide part that has the fitting block extended from the vertical part and rises vertically in the support part. The temporary attachment plate that is bent downward so that it can be clamped, the engagement / disengagement hole drilled in the thickness direction of the base end in the middle of the hook is movable up and down, and the fitting block upper surface wall When the horizontal wall of the upper edge of the formwork panel is sandwiched in between, it can be temporarily fixed by its elastic force It can be made and is loosely fitted to the.

    The fitting block is fitted in the vicinity of the outer edge of the upper edge of either one of the pair of formwork panels that are in a face-to-face shape, and is between the tip of the temporary fixing plate. The upper end edge of the formwork panel is elastically sandwiched to perform a function of temporarily fixing the support portion and the mounting portion that supports the horizontal member, as shown in the embodiments described later. In addition, the back side of the molding wall of the formwork panel is the back side, the lower surface of the upper edge horizontal plane wall of the molding surface wall, and the molding wall of the upper edge horizontal plane wall opposite to the molding surface wall, and vertically downward Each of the folded small folded curved walls must be formed into a roll-over prismatic mold having a joining surface wall that can be contacted, and is opposite to being joined to the back of the formwork panel. The outer vertical surface wall or the upper edge of the molding surface wall is joined to the lower surface of the horizontal wall The support part should be extended from either one of the horizontal walls on the opposite side, which is the opposite side, and aimed at reducing the weight in an appropriate place other than the contact surface with the formwork panel It can be formed by drilling a lightening hole.

    The temporary fixing plate is joined to the upper surface of the horizontal plane wall of the upper edge of one of the pair of formwork panels in a pair of opposite shapes, and between the fitting block and the formwork panel. The upper end edge is elastically sandwiched, and it functions to enable temporary fixing of the support part and the mounting part that supports the horizontal member, and consists of a leaf spring material such as a spring steel plate or stainless steel plate. Folding the vicinity of the center into an approximately “<” shape, with the tip of the hook facing the top wall of the fitting block, and the engagement / disengagement hole drilled in the thickness direction in the middle of the hook It is assumed that it is loosely fitted so as to be movable up and down with respect to the upright guide part that rises vertically in the collar part, and when the horizontal wall of the upper edge of the formwork panel is sandwiched between the tip and the upper surface wall of the fitting block, It must be set so that it can be temporarily fixed by elastic force. Narazu, as shown in the examples below, the proximal end is desirably assumed that the formation of the coating portion made of crocodile resin.

    The engaging / disengaging hole is mounted at the appropriate position of the temporary fixing plate base end movably up and down with respect to the upright guide portion that rises vertically in the support portion, and between the fitting block upper surface wall, When the horizontal plane wall of the upper edge of the panel is sandwiched, it functions to be temporarily fixed by its elastic force, and is set to a diameter slightly larger than the diameter of the upright guide part that rises vertically in the support part, and temporarily fixed The base end of the plate shall be penetrated in the thickness direction at the right place.

    The support part can mount and support a part of the horizontal member in a roll-like posture at a position above the attachment part and above the center between the paired formwork panels at a predetermined height dimension. It is assumed that the support part can be supported integrally so that it has the strength to be able to support, and it is formed to be curved so as to extend from the attachment part and reach a position above the center of a predetermined height between the pair of opposite formwork panels. As shown in the examples described later, in the case of a thing equipped with a clamping mechanism consisting of a fitting block and a temporary fixing plate, an upright guide part that rises vertically from the mounting part or the fitting block, The diameter should be set slightly smaller than the engaging / disengaging hole drilled in the temporary fixing plate.

    The support part has a function of allowing a part of the horizontal member in a roll-up posture to be mounted and supported at a position above the center of the predetermined height between the pair of formwork panels facing each other. It should have an engaging or fitting shape that can be supported so that it will not accidentally fall down, and should be integrated with sufficient strength near the upper end of the support section. As shown in FIG. 4, the shape is generally U-shaped, and can be set so as to be able to engage and support a suitable position of a wooden through plate serving as a horizontal member.

    A horizontal member is placed along each support part of a plurality of support brackets for a curing sheet that is detachably and temporarily fixed to each upper edge of each form panel arbitrarily selected so as to be spaced at an appropriate interval. It should fulfill the function of allowing the curing sheet to be mounted in a hanging shape, and should be light enough to be easily transported by a single operator, and attached to the upper edge frame of the formwork panel of the mounting part The support height by temporary fixing must be set to be higher than the anchor bolt protruding upward from the molding space for the concrete foundation, outside of metal pipes, bars, plates, etc. Although it is possible to use pipes, bars, and plates made of synthetic resin, it is desirable to use wooden bars and plates that are unlikely to cause condensation.

    The curing sheet is attached to the outside of the upper edge of the pair of formwork panels arranged on both sides from the upper side of the horizontal member placed along the support, and is attached to be removable. The cast concrete poured into the molding space formed by the frame panel is insulated, insulated, warmed and moisturized to perform proper curing, along the back of the horizontal frame and formwork panel. Synthetic resin sheets, foamed synthetic resin sheets, non-woven fabrics, metal foils, waterproofed fabrics, or sheets with various waterproof, heat-retaining, and heat-insulating layers formed on them, etc. It can be appropriately selected and used from various materials.

    Formwork panels are for construction of reinforced concrete structures, and function to enable the formation of molding spaces for molding the foundations of buildings, and are representative of cloth foundations and solid foundations by combining multiple sheets. It is a general thing that can mold the foundation rising part of a building to be made, and can be made of steel, stainless steel, aluminum alloy, reinforced plastic, plywood, or the like.

    The formwork panel installation process in the method for constructing a reinforced concrete foundation according to the present invention uses a plurality of formwork panels to secure a predetermined rebar cover thickness and set a vertical facing wall so as to set a molding space for the reinforced concrete foundation The work contents are substantially the same as the installation of the formwork and rebar when constructing the foundation of a general building.

    The concrete filling process is a process of filling ready-mixed concrete in the molding space and can be performed in the same way as when constructing the foundation of a general building. Ready-mixed concrete is transferred from a concrete production facility to a tractor agitator. Or transport to a construction site by truck mixer (raw mixer truck) and supply it to the formwork, or at the construction site, water, cement, fine aggregate (sand), coarse aggregate (gravel) and as needed It is also possible to knead admixtures such as an AE agent (Air Entraining Agent) and blast furnace slag at an appropriate ratio and supply the mixture into the mold.

    The support bracket mounting process consists in detaching and temporarily fixing the mounting portion of the support bracket for the curing sheet to the upper edge of each mold panel arbitrarily selected so as to be appropriately spaced. It must be performed after the process, and can be performed at the same time as the concrete filling process or at any stage before or after the concrete filling process, and is most preferably performed immediately after the concrete filling process in consideration of work efficiency. Nevertheless, the temporary fixing operation of the mounting portion must be performed so that the support portion can be securely supported, and the support portion should be fixed so as to be supported in a vertical posture.

    The horizontal material mounting process consists in the work of placing the horizontal material in a substantially horizontal posture between the support parts of the support brackets for the curing sheet temporarily fixed to the upper edge of each formwork panel. The horizontal member must be securely laid and placed so that it does not fall off each support part. It is desirable to use a wooden through plate set to a shape, size, and strength that can be used as a plate material for a scaffold.

    Curing sheet covering / curing process, covering the curing sheet on the back of the formwork panels on both sides so as to be hooked from above the horizontal material, covering and curing the concrete for a predetermined time It must be continued until the ready-mixed concrete in the formwork has developed sufficient strength, and during that time, temperature and humidity should be properly controlled as in general concrete curing. It is necessary to peel off part or all of the curing sheet at the appropriate time during curing, and to inspect and repair the upper part of the concrete foundation from between the upper edge of the formwork panel and the horizontal support supported horizontally In addition, the top end leveler can be supplied and the curing sheet can be applied again to complete the curing.

The withdrawal process consists in removing the curing sheet, the curing sheet support bracket, the formwork panel, and the various fasteners from the foundation concrete that has been cured, and the procedure for withdrawal can be performed freely as appropriate. After removing all the curing sheets, it is desirable to proceed to remove each horizontal member and each curing sheet support bracket easily and quickly, and then remove the formwork panel and various fastening brackets.
In the following, the structure of the present invention will be described in detail together with an embodiment representative of the present invention shown in the drawings.

    FIG. 1 is a perspective view of the support bracket for the curing sheet, FIG. 2 is a front view of the support bracket for the curing sheet in a longitudinal section, and FIG. 3 is a group of support brackets for the curing sheet on which the horizontal member is mounted. In the example shown in the perspective view, a predetermined amount of ready-mixed concrete is placed for the concrete foundation B, and one of the pair of formwork panels P, P,... A mounting portion 2 provided with a detachable temporary fixing clamping mechanism 3 with respect to the P upper edge frame P1, and a lower end 41 thereof is integrated and supported by the mounting portion 2, and the upper end is the same mounting portion. The support part 4 is curved and formed so as to reach a position above a predetermined height dimension H near the center between the pair of formwork panels P, P facing each other, and the upper part 44 of the support part 4 is integrated in the vicinity. Curing sheet 6 It is formed so that the horizontal member 5 for hanging can be detachably fitted. Consisting bearings 45. shows one example representative of the curing sheet supporting bracket of the present invention.

    As shown in FIGS. 1 to 3, the curing sheet support bracket 1 includes a mounting portion 2 that can be clamped to the upper edge frame P <b> 1 of a form panel P installed for reinforced concrete foundation B placement, The support portion 4 is integrated so as to be extended from the attachment portion 2, and the attachment portion 2 includes a back surface P 7 on which the back surface of the molding surface wall P 6 of the mold panel P becomes a trap, and a molding surface wall P 6. The lower surface P3 of the upper edge horizontal plane wall P2 and the molding surface wall P6 of the upper edge horizontal plane wall P2 are opposite to the molding surface wall P6. Are formed in a roll-over prism shape having a vertical dimension Y of 40 mm, a horizontal width X of 75 mm, and a depth Z of 40 mm, each having a joint surface wall that can be fitted in contact with each other. Thickening that penetrates in the width dimension X direction between the centers The fitting block 21 is made of a steel fitting block 21 in which a hole 22 is formed, and a support part 4 made of a round steel rod having a diameter of 9 mm is provided with a lower end 41 bent into an approximately L shape. The outer vertical surface wall 24 that is opposite to the back surface P7 of the formwork panel P is horizontally shaped so as to reach the wall thickness near the center bottom surface 23 from the vicinity of the center bottom edge in the width dimension X direction. It is firmly fixed by insertion, press-fitting, welding, brazing, or screw connection.

    The support part 4 has a lower end 41 that extends in a horizontal direction of a right angle with respect to the outer vertical surface wall 24 of the fitting block 21 and is bent upward in a vertical direction, and is bent vertically upward. The upright guide portion 42 that rises vertically is formed, and further, the curved portion 43 that extends upward with a curvature of 145 mm in diameter is formed over the upper range of the fitting block 21 from the upper side to the opposite side, The upper end 44 is set in a horizontal posture and is made to reach a height position H of 206 mm above the top surface 25 of the fitting block 21, and the horizontal dimension W from the upright guide portion 42 rising up vertically to the upper end 44. Is set to a dimension that is about ½ of the horizontal distance between the formwork panels P and P that sandwich the reinforced concrete foundation B.

In the upright guide part 42 raised up vertically of the support part 4, a spring steel plate having a width of 22 mm, a length of 100 mm, and a thickness of 4.5 mm is provided from a location where the tip is 44 mm from the base and the base is 56 mm from the base. A temporary fixing plate 31 that is bent in a mountain fold at an angle of 115 ° and has a base end with a diameter 11 mm engagement / disengagement hole 32 in the center of a 56 mm range is slidable through the engagement / disengagement hole 32. A clamping mechanism 3 that allows the mounting portion 2 to be temporarily fixed to the upper edge frame P1 of the formwork panel P by the downwardly bent tip of the temporary fixing plate 31 and the fitting block 21. A covering portion 33 made of natural rubber, soft synthetic resin, foamed resin or chamfered hard synthetic resin is integrally attached to the base end of the temporary fixing plate 31. .
Further, at the upper end 44 of the support part 4, there is a bottom part of the support part 45 which is made of a round steel bar having a diameter of 9 mm and bent into a U shape with a curvature of 22 mm, and the height h is set to 65 mm. It is firmly integrated by welding.

    The example shown in the front view of the support member for the curing sheet in which the clamping mechanism of the mounting portion in FIG. 4 is modified is a flat plate body 26 in which the mounting portion 2 is set to a predetermined size, and the upper surface of the tip is made of plywood. The formwork panel P can be joined to the lower surface P3 of the upper end edge horizontal plane wall P2, and a vertical column plate 27 is raised from its upper surface at the center rear end. It is assumed that the support part 4 formed by integrating the support part 45 is erected substantially in the same manner as shown in FIG.

    The base end of the temporary fixing plate 31 curved downward so that the free end edge can be sandwiched between the upper end edge horizontal plane wall P2 between the free end edge and the upper surface of the flat plate body 26 at an appropriate position in the middle of the support plate 27. The part is pivotally mounted around a horizontal axis, and passes through both of the flat plate body 26 and the temporary fixing plate 31 at an appropriate position where it does not interfere with the horizontal wall P2 at the upper edge of the formwork panel P. Concentric tightening holes 34, 34 that are concentric in the vertical direction are formed, and a nut 35 is concentrically integrated on the upper portion of the tightening hole 34 of the temporary fixing plate 31, and is connected to each tightening hole 34, 34. Then, a wing screw 36 is penetrated upward from below, and its tip is screwed into a nut 35 on the upper surface of the temporary fixing plate 31.

(Operation of Example)
The curing sheet support bracket 1 of the present invention having the above-described configuration enables the construction method of the reinforced concrete foundation included in the present invention to be performed, and hereinafter, the work procedure of the construction method of the reinforced concrete foundation 2 and 3, first, as shown in FIGS. 2 and 3, a predetermined reinforcing bar cover thickness using a plurality of metal formwork panels (manufactured by NSP Co., Ltd.) P, P,... The formwork panel installation process for assembling so as to form a vertical confronting wall is established to set the molding space for concrete foundation, and in the subsequent concrete filling process, the tractor agitator or track mixer (green Ready-mixed concrete transported to the construction site by a mixer truck) Either at the same time as the filling work, or immediately before the form panel P, P,..., Just after installation or immediately after filling the concrete into the molding space, Desirably, the support metal fitting process shown below is performed immediately after the filling of the ready-mixed concrete, which does not hinder the ready-mixed concrete filling operation.

    For the curing sheet shown in FIG. 1 to FIG. 3, each of the upper edge frame P1 of each formwork panel formwork panel P, P,... A plurality of support fittings 1, 1,... Are attached to a back surface P7 on which a fitting block 21 of each mounting portion 2 is a back surface of a molding surface wall P6 of the formwork panel P shown in FIG. The inner surface of the lower curved surface wall P4 of the upper end edge horizontal plane wall P2 of the molding surface wall P6 and the small curved surface wall P4 of the upper end edge horizontal plane wall P2 opposite to the molding surface wall P6 and bent vertically downward. Attaching to each of the surfaces P5 in a fitting manner, the temporary fixing plate 31 that forms a part of the clamping mechanism 3 is lowered along the upright guide portion 42 that rises in the vertical direction of the support portion 4, and the temporary support plate 31 is lowered. Between the tip bent downward of the stop plate 31 and the top surface 25 of the fitting block 21 When the upper end edge horizontal plane wall P2 of the formwork panel P is sandwiched and further pushed down, the peripheral wall of the vertical rising upright guide portion 42 of the support portion 4 by the elastic force of the spring plate of the temporary fixing plate 31 itself, In addition to this, a strong frictional force is generated between the contact portions with the inner peripheral edge of the engaging / disengaging hole 32 which is inclined and engaged, and the inner folding surface P5 of the small bent surface P4 of the formwork panel P is locked. It is assumed that the fitting block 21 is firmly positioned and temporarily fixed with respect to the upper edge frame P1 of the form panel P by force.

    As shown in FIG. 2 and FIG. 3, the curing sheet support brackets 1, 1,... Arranged in the same straight line have their respective support portions 45, 45,. Vertically protruding anchor bolts B1, B1,... Which are sufficiently higher than the upper ends, and are positioned and supported linearly at the approximate center of the width dimension of the reinforced concrete foundation B, in the subsequent horizontal material mounting process In order to engage along the U-shaped valleys of the support portions 45, 45,... Of the support brackets 1, 1,. It mounts so that the thickness direction may turn to a horizontal direction, and it may become the posture which becomes parallel to reinforced concrete foundation B.

    The supporting bracket mounting process and the horizontal member mounting process are performed in the same manner over all the top ends of the target reinforced concrete foundation B, and are shown in FIG. 2 by the subsequent curing sheet covering / curing process. As described above, each of the horizontal members 5, 5,... For concrete curing having the heat retention and water retention by hanging the form panels P, P back surfaces P7, P7 on both sides so as to be hooked from above. The curing sheet 6 is covered, the concrete is covered and cured for a predetermined time, and part or all of the curing sheet 6 is peeled off at an appropriate time after the start of the curing, and the white shown in FIG. 2 and FIG. As shown in the drawing arrow, from the upper edge frame P1 of the formwork panel P and the horizontal member 5 supported horizontally, the upper part of the concrete foundation B is inspected, repaired, and the top leveler is supplied. To continue the curing by covering the curing sheet 6 again In the curing sheet laying / curing process, the curing sheet 6 covered on the curing sheet support brackets 1, 1,..., As shown by a two-dot chain line in FIG. Although it will contact the midway part and the base end of the temporary fixing plate 31, the bending part 43 of each support part 4 and the covering part 33 of the base end of the temporary fixing plate 31 prevent strong contact and damage the curing sheet 6. It will prevent.

    After completing the curing, remove the curing sheets 6, 6, ..., horizontal members 5, 5, ... from the reinforced concrete foundation B by the withdrawal process, and temporarily attach the support brackets 1, 1, ... for the curing sheets. The base end of the stop plate 31 is slightly pushed upward so that the wings are in a horizontal position, and the engagement / disengagement hole 32 is parallel to the upright guide portion 42 that rises in the vertical direction of the support portion 4 to disengage the engagement state. Then, the fitting block 21 can be easily removed from the upper edge frame P1 of the formwork panel P, and each formwork panel P, P,... And various fastening hardware (not shown) are removed. The reinforced concrete foundation B is constructed according to the procedure of doing.

    The curing sheet support bracket 1 of Example 2 shown in FIG. 4 can also be used for the construction of a building foundation according to the construction method of the same reinforced concrete foundation, although the clamping mechanism 3 is different. In the following, only the attaching / detaching operation of the clamping mechanism 3 during the support fitting mounting process and the withdrawal process different from the first embodiment will be described.

    During the support fitting mounting step, the upper surface of the flat plate 26 is joined to the lower surface P3 of the upper edge horizontal plane wall P2 of the plywood frame panel P, and the tip of the temporary fixing plate 31 is connected to the upper edge horizontal plane wall P2. Further, the mounting part 2 can be detachably temporarily fixed to the upper edge frame P1 of the formwork panel P by rotating the thumbscrew 36 in the tightening direction. The horizontal direction of the upper edge of the form panel P that is sandwiched between the tip of the temporary fixing plate 31 and the upper surface of the flat plate 26 by rotating the thumbscrew 36 in the loosening direction opposite to that when tightening. The work is to open, separate, and remove the face wall P2.

(Effect of Example)
In addition to the features described in the section of the effect of the present invention, the support bracket 1 for the curing sheet according to the first embodiment having the above-described configuration is a fitting block for the mounting portion 2 shown in FIGS. As shown in FIG. 1, 21 is formed into a roll-over prism type with a vertical dimension Y of 40 mm, a lateral width X of 75 mm, and a depth Z of 40 mm. As shown in FIGS. 2 and 3, a formwork panel When temporarily fixed along the lower surface P3 of the horizontal plane wall P2 of the upper edge of the P, the support part 4 is prevented from falling in a direction parallel to the reinforced concrete foundation B, and particularly its upright guide part 42 and the support part. 45 can be accurately held vertically, the clamping operation of the temporary fixing plate 31 of the clamping mechanism 3 can be ensured, and the hollow hole 22 can be used to attach the steel fitting block 21. Lightweight and temporary fixing plate when temporarily fixed To reduce the load applied to 1, and that the advantages of achieving the more stable clamping of the upper edge horizontal wall P2.

    Further, as shown in FIGS. 2 and 3, the upper end 44 of the support portion 4 of the curing sheet support bracket 1 temporarily fixed to the upper end edge frame P1 of the formwork panel P is from the upper end of the anchor bolt B1 of the reinforced concrete foundation B. The support 45 and the horizontal member 5 mounted thereon can be installed without interfering with the anchor bolt B1 and set to the upper edge frame P1 of the mold panel P of the curing sheet support bracket 1. The work efficiency of attaching and detaching, horizontal installation of the horizontal member 5, and attachment and detachment of the curing sheet 6 can be greatly improved. The conventional scaffold 5 using the scaffolding plate shown in FIG. 5 had to be transported, installed and removed by two or more workers, but can be transported, mounted and removed by one worker. The vertical dimension of the horizontal member 5 can be set to be reduced to such an extent that it can be sufficiently reduced in size and weight, and the man-hour and labor burden in the curing work can be greatly reduced.

    Further, the curing sheet support bracket 1 shown in FIG. 4 includes a flat plate body 26 and a temporary fixing plate 31 that support a column plate 27 (including a part of the support portion 4, the support portion 45, and the horizontal member 5). Is tightly clamped and temporarily fixed to the upper edge frame P1 of the mold panel P by tightening with the thumbscrew 36 and the nut 35, and is securely clamped and attached to the mold panel P made of plywood. There is an effect that can be done.

    As described in the section of the operation of the embodiment, using the support bracket 1 for the curing sheet of the embodiment 1 shown in FIGS. 1 to 3 or the embodiment 2 shown in FIG. In the case where the reinforced concrete foundation B is constructed by the construction method of the reinforced concrete foundation included in the present invention, and the work procedure is set to perform the support fitting mounting process immediately after the concrete filling process, the concrete filling work It is possible to smoothly handle the live concrete placing hose (not shown) in the inside, and after filling the ready-mixed concrete, it is possible to efficiently and efficiently install the support brackets 1, 1,. It is possible to quickly proceed to the horizontal material mounting process and the curing sheet laying / curing process, and the occurrence of fatal defects such as cold joints and formwork collapse will occur. It is possible to prevent.

(Conclusion)
As described, the curing bracket support metal fitting according to the present invention and the method for constructing the reinforced concrete foundation using the same make it possible to achieve the intended purpose evenly by the novel configuration, and it is easy to manufacture. In addition to reducing the weight and cost compared with conventional curing materials for fabric foundations, it is possible to improve the workability of attaching and removing the curing sheet and make it much more economical. Since the workability of the leveler sink can be greatly improved, not only the construction industry, which suffers from labor shortages, but also the entire building materials industry, which handles formwork panels and various fittings, is affected by weather conditions. As a result, it can be used to build high-quality concrete foundations, and as a result of high evaluation from general users and households as end users, it will be widely used and spread. It is expected to be in.

The drawings show some typical embodiments embodying the technical ideas of the support bracket for the curing sheet of the present invention and the method of constructing the reinforced concrete foundation using the same.
It is a perspective view which shows the support metal fitting for a curing sheet. It is a front view which shows the support metal fitting for curing sheets in use condition. It is a perspective view which shows the support bracket for curing sheets in use condition. It is a front view which shows the support metal fitting for curing sheets which added the change to the clamping mechanism. It is a perspective view which shows the reinforced concrete foundation in the conventional curing work.

Explanation of symbols

1 Supporting bracket for curing sheet 2 Mounting part
21 Same wearing block
22 The same hole
23 Same bottom
24 Same vertical wall outside
25 Same top
26 Flat plate
27 Same support plate 3 Clamping mechanism
31 Same temporary stop plate
32 Same hole
33 Same covering part
34 Tightening hole
35 Same nut
36 Same thumbscrew 4 Branch
41 Same bottom
42 Same Upright Guide
43 Curved part
44 Same top
45 Same bearing part 5 Horizontal member 6 Curing sheet B Reinforced concrete foundation
B1 Same anchor bolt P Formwork panel
P1 Same top edge frame
P2 Same top edge horizontal plane wall
P3 Same as the bottom of the upper edge horizontal horizontal wall
P4 Folded curved wall
P5 Inner side of the curved wall
P6 Same molding wall
P7 Same side of molding wall

Claims (7)

    A predetermined amount of ready-mixed concrete is cast for concrete foundation, and it is detachable and temporarily fixed to either one of the pair of formwork panels that are in a face-to-face form. A mounting part provided with a mechanism, and a lower end thereof are integrated and supported by the mounting part, and the upper end of the upper part extends from the mounting part and is positioned above the center of the pair of formwork panels at a predetermined height above the center. It is composed of a support part that is curved so as to reach and a support part that is integrated in the vicinity of the upper end of the support part and that can be detachably fitted with a horizontal member for hanging the curing sheet. A support bracket for a curing sheet characterized by that.     A predetermined amount of ready-mixed concrete is cast for concrete foundation, and it is detachable and temporarily fixed to either one of the pair of formwork panels that are in a face-to-face form. A mounting part provided with a mechanism, and a lower end thereof are integrated and supported by the mounting part, and the upper end of the upper part extends from the mounting part and is positioned above the center of the pair of formwork panels at a predetermined height above the center. It is composed of a support part that is curved to reach and a support part that is integrated near the upper end of the support part and that can be detachably fitted with a horizontal member for hanging the curing sheet, One of the pair of formwork panels that are opposite to each other, one of the formwork panels at an appropriate interval along the upper edge frame, and a plurality of mounting parts are attached to each of them, and each support part thereof is installed. Place a horizontal member so that it can be Curing sheet support metal fittings, in which the curing sheet can be covered in a hook-like manner on the back of the formwork panels on both sides from above the horizontal plate so as to cover the top of the sheet .     The mounting part is a back surface in which a predetermined amount of ready-mixed concrete is cast for the concrete foundation, and the back surface of the molding surface wall of either one of the pair of formwork panels facing each other The lower surface of the horizontal wall of the upper edge of the molding surface wall and the small curved surface wall that is bent vertically downward opposite to the molding surface wall of the upper edge horizontal surface wall, respectively, Formed in a roll-over prismatic mold with a contact surface wall that can be contacted, and on the outer vertical surface wall opposite to the back surface of the formwork panel, or on the lower surface of the horizontal wall at the upper edge of the molding surface wall For the upright guide part that has a fitting block that extends the support part from either one of the horizontal walls of the lower side opposite to the side that is joined, and rises vertically in the support part The mold panel is placed between the top edge wall and the fitting block upper surface wall. An engagement / disengagement hole drilled in the thickness direction of the base end of the temporary fixing plate that is bent downward so that the horizontal wall of the upper end edge is sandwiched and made possible is movable up and down and is a fitting block The curing according to any one of claims 1 and 2, wherein when the horizontal wall of the upper edge of the form panel is sandwiched between the upper wall and the upper surface wall, it is loosely fitted so as to be temporarily fixed by its elastic force. Support bracket for seat.     The mounting part is a back surface in which a predetermined amount of ready-mixed concrete is cast for the concrete foundation, and the back surface of the molding surface wall of either one of the pair of formwork panels facing each other The lower surface of the horizontal wall of the upper edge of the molding surface wall and the small curved surface wall that is bent vertically downward opposite to the molding surface wall of the upper edge horizontal surface wall, respectively, Formed in a roll-over prismatic mold with a contact surface wall that can be contacted, and on the outer vertical surface wall opposite to the back surface of the formwork panel, or on the lower surface of the horizontal wall at the upper edge of the molding surface wall For the upright guide part that has a fitting block that extends the support part from either one of the horizontal walls of the lower side opposite to the side that is joined, and rises vertically in the support part The mold panel is placed between the top edge wall and the fitting block upper surface wall. The base end of the temporary fastening plate that is bent downward to allow the upper end edge horizontal plane wall to be sandwiched, and a resin coating is applied to the base end, and the base end is drilled in the thickness direction at a midway position When the engagement / disengagement hole is vertically movable and the horizontal wall of the upper edge of the formwork panel is sandwiched between the upper surface wall of the fitting block, it is loosely fitted so that it can be temporarily fixed by its elastic force. The support bracket for curing sheets according to any one of claims 1 and 2.     The support bracket for a curing sheet according to any one of claims 1 to 4, wherein the support portion is formed in a substantially U shape, and is formed so as to be able to engage and support a suitable position of a wooden through plate serving as a horizontal member. .     Concrete filling that fills ready-mixed concrete into the molding space after the form panel installation process that assembles so as to form a vertical facing wall so as to set up a molding space for a reinforced concrete foundation using a plurality of formwork panels At the same time as the process is performed, or at any stage before or after the process, the attachment part of the support bracket for the curing sheet can be attached to and detached from each upper edge of each form panel arbitrarily selected so as to be appropriately spaced A support bracket mounting process for temporarily fixing to the support sheet, and a horizontal material mounting process for mounting a horizontal material between the support parts of the support brackets for the curing sheet, and a subsequent curing sheet covering and curing process, Cover the curing sheet with the back of the formwork panels on both sides so that it can be hung from above the horizontal member, cover and cure the concrete for a predetermined time, and complete the curing by the removal process. The curing sheet support according to any one of claims 1 to 5, wherein the curing sheet is set to withdraw the curing sheet, the horizontal member, the curing sheet support bracket, the formwork panel, and the various fastening brackets from the finished concrete. Construction method for reinforced concrete foundation using metal fittings.     Concrete filling that fills ready-mixed concrete into the molding space after the form panel installation process that assembles so as to form a vertical facing wall so as to set up a molding space for a reinforced concrete foundation using a plurality of formwork panels At the same time as the process is performed, or at any stage before or after the process, the attachment part of the support bracket for the curing sheet can be attached to and detached from each upper edge of each form panel arbitrarily selected so as to be appropriately spaced A support bracket mounting process for temporarily fixing to the support sheet, and a horizontal material mounting process for mounting a horizontal material between the support parts of the support brackets for the curing sheet, and a subsequent curing sheet covering and curing process, The back of the formwork panels on both sides is hung on the side so that it is hooked from above the horizontal member, covering the curing sheet, covering and curing the concrete for a predetermined time, at the appropriate time during the curing, Curing Inspect and repair the upper part of the concrete foundation and supply the top end leveler between the upper edge of the formwork panel and the horizontal support supported horizontally. It is set to remove the curing sheet, horizontal member, support bracket for curing sheet, formwork panel and various tight fittings from the basic concrete that has been cured by re-covering the sheet by covering it again. The construction method of the reinforced concrete foundation using the support metal fitting for curing sheets as described in any one of Claims 1 thru | or 5.

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