JP2009108594A - Method of constructing heat insulation foundation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method of constructing a heat insulation foundation while supporting an anchor bolt for a hole down joint metal at a correct location and in a correct position. <P>SOLUTION: According to the method, both heat insulation materials (3, 4) are arranged such that both upper surfaces (3u, 4u) thereof assume a horizontal position, and a positioning member 80 is temporarily fixed to the upper surfaces (3u, 4u). Then the anchor bolt 70 is inserted sideways from sideway insertion ports (83, 87) of engaging grooves (82, 85) of both plate portions (81, 85) of the positioning member, and pressed and fixed to recesses (84a, 88a) of bent portions (84, 88), respectively, followed by pouring concrete. Thereafter the positioning member 80 is disengaged from the anchor bolt 70, and moved sideways as appropriate, followed by detaching the same from the anchor bolt 70. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a method for constructing a heat insulating foundation.

  Anchor bolts for column-hole down joint hardware are embedded in a predetermined position of a reinforced concrete foundation of a building (for example, a wooden building). Here, the anchor bolt needs to be disposed in an accurate position (an attitude in which a portion protruding from the concrete foundation is vertical) at an accurate position before placing the concrete.

  As one of the prior arts related to embedding anchor bolts for hole-down joint hardware, Japanese Patent No. 3809638 is used for a method for supporting and fixing anchor bolts for hole-down joint hardware for pillars embedded in the foundation of a wooden house, and the same method. There is an anchor centering pole.

This prior art is a rod-shaped round steel that is somewhat longer than the back of a wooden formwork of a rising fabric base that is usually used with a diameter equal to the diameter of the anchor bolt for the hole-down joint hardware of a pillar embedded in the foundation of a wooden building. The lower part is a cylindrical internal cavity with a certain depth, the upper part of the member has a screw part, and the length of the upper screw part of the member according to the change of the back of the wooden formwork to be used In order to solve the shortage, a length adjustment auxiliary member with a cylindrical internal thread is installed, and a catch type level dedicated to vertical building is attached to the cylindrical auxiliary member, and combined to form an integrated structure It is set as the structure used as.
Japanese Patent No. 3809638

  By the way, in the case of the invention according to Patent Document 1, an anchor bolt support fitting is placed on a wooden formwork, an anchor bolt dummy (anchor centering pole) is set on the fitting, and the lower end of the pole is placed on the base. Fit with the plug, adjust the position of the anchor bolt support bracket in that state, fix the support bracket at the position where the vertical is confirmed with the catch type level, and then remove the anchor centering pole from the bracket, instead Since a real anchor bolt is set on the front, it takes a lot of time and effort.

  By the way, recently, as proposed in Japanese Patent Laid-Open No. 11-36587, etc., a construction method (insulation foundation construction method) in which a heat insulating material is used as a mold and is left after placing concrete is gradually adopted. It has become

  According to this heat insulation foundation, since the formwork (heat insulation material) is lightweight, it is easy to arrange the formwork so that each top end is horizontal, and the top end of the heat insulation material is used as a reference. If the anchor bolts for the hole-down joint hardware are arranged, it is considered that the positioning can be performed accurately and easily.

  In view of the above circumstances, an object of the present invention is to provide a heat insulation foundation construction method capable of quickly building an anchor bolt for a hole-down joint hardware in an accurate position and posture.

  According to the first aspect of the present invention, a mold is formed from a pair of heat-insulating materials standing in parallel at a predetermined distance on abandoned concrete, and both the heat-insulating materials are heat-insulating blocks made of plate-like foamed resin with elastic materials. A plurality of these end faces are connected to each other through a block connecting mechanism, and anchor bolts for hole-down joint hardware are arranged at predetermined positions in the concrete placement space between the two heat insulating materials, It is a construction method of a heat insulating foundation constructed by placing concrete in the concrete placement space, and can be fixed in a flat contact with the top ends of both heat insulating materials across the concrete placement space A positioning plate comprising a base plate portion and a support plate portion which is joined to the base plate portion and is opposed to the central portion of the base plate portion by a predetermined distance in the vertical direction. A locking groove having a recess is formed in a portion corresponding to the anchor bolt embedding position that is open at the plate side end and extends in the base width direction, and the anchor bolt for the hole down joint hardware is connected to the positioning member. It is provided with a locking member that presses and fixes to the recess of the stop groove, and before placing the concrete, the two heat insulating materials are arranged so that each top end is horizontal in the foundation width direction and the foundation longitudinal direction, and in this state The base plate portion of the positioning member is fixed to the top ends of both heat insulating materials, and then the anchor bolt for the hole down joint hardware is inserted from the lateral insertion port of the locking groove of the positioning member and positioned in the concave portion of the bent portion, In this state, a method for constructing a heat-insulating foundation in which anchor bolts for hole-down joint hardware are pressed and fixed to the concave portions with locking members, and then concrete is placed in the concrete placement space.

  In the case of the first aspect of the invention, since the pair of heat insulating materials form the mold, it is lightweight, and the top ends of both the heat insulating materials are easy to be horizontal in the basic width direction and the longitudinal direction. Thus, if the top end of a heat insulating material becomes horizontal, the anchor bolt for hole-down joining hardware can be installed on the basis of the both top ends. That is, there is no need to set an anchor bolt dummy (with a level) on the support bracket and adjust the position of the support bracket so that the dummy is vertical as in the prior art. The anchor bolt is fixed to the predetermined position of the anchor bracket, and the anchor bolt is inserted into the recess of the locking groove of the supporting bracket and fixed with the locking member. If it is supported, it is not necessary to check with a spirit level and it can be supported vertically. If concrete is placed in the concrete placement space in this state, the anchor bolt is embedded in an accurate position and posture.

  According to the present invention, it is possible to quickly construct a heat insulation foundation by supporting an anchor bolt for a hole down joint hardware in an accurate position and posture.

  Embodiments of the present invention will be described below with reference to the drawings.

  As shown in FIGS. 1 to 3, the method for enforcing the heat insulation foundation according to the present invention is a mold from a pair of heat insulating materials (3, 4) that are erected in parallel at a predetermined distance (w 0) on the discarded concrete 7. The frame 2 is formed, and both the heat insulating materials (3, 4) are elastic materials made of plate-like foamed resin heat insulating blocks (11, 21), and a plurality of their end faces (12, 22) are connected to the block connecting mechanism 30. The hole down joint metal anchor bolt 70 is disposed at a predetermined position in the empty space (concrete placing space S) between the two heat insulating materials (3, 4). The concrete is placed in the placement space S to construct the foundation 1, and before the concrete is placed, the outer and inner heat insulating materials (3, 4) are respectively connected to the top ends (3u, 4u). ) Is the base width direction (arrow X direction in FIG. 2) and the base length 1 (horizontal direction orthogonal to the plane of the paper in FIG. 1, arrow Y direction in FIG. 7), and in that state, the base plate portion 81 of the positioning member 80 straddles the concrete placement space S and both heat insulating materials ( 3, 4) is temporarily fixed to each top end (3 u, 4 u) by abutting in a planar shape, and formed so as to be aligned vertically with both the base plate portion 81 and the support plate portion 85 of the positioning member 80. The anchor bolt 70 is inserted from the lateral insertion port (83, 87) of the same-shaped locking groove (82, 86) and is brought into contact with the concave portion (84a, 88a) of the bent portion (84, 88). In this state, the anchor bolt 70 is pressed and fixed to the concave portion (84a, 88a) with a locking member (wing screw 91), and then concrete is placed in the concrete placement space S, and the placement operation is completed. And the concrete has solidified sufficiently At the same time, the positioning member 80 and the anchor bolt 70 are unlocked, and the temporary fixing of the positioning member 80 to both heat insulating materials (3, 4) is also released. The anchor bolt 70 is configured to be removable from the heat insulating foundation 1 by appropriately moving in the direction).

  First, the positioning member 80 which is a main member used for the construction method of the heat insulation foundation 1 will be described in detail.

  As shown in FIGS. 2 to 5, the positioning member 80 is a plate-like base that can be temporarily fixed to the top ends (3 u, 4 u) of both heat insulating materials (3, 4) that are the mold 2 of the heat insulating base 1. The plate part 81, the support plate part 85 provided on the base plate part 81 so as to be separated by a predetermined distance in the vertical direction, and the anchor bolts 70 for the hole down joint hardware are locked to the two plate parts (81, 85). And a locking member (wing screw 91).

  Specifically, the base plate portion 81 of the positioning member 80 is formed in a strip shape, and both end portions (81a, 81b) in the longitudinal direction straddle the concrete placement space S, and each of the heat insulating materials (3,4). It is selected so that it can come into contact with the top end (3u, 4u) in a planar shape. Specifically, the positioning member 80 is bent and formed so that the central portion 81c is positioned above the both end portions (81a, 81b). This is to prevent placement concrete from attaching to the central portion 81c of the positioning member 80.

  And as shown in FIG. 4, the inner side contact | abutted with the heat insulating material 4 inside the outer end part 81a contact | abutted with the outer side heat insulating material 3 among the both ends (81a, 81b) of the base board part 81 of the positioning member 80 The end 81b is formed to be low. This is because the top end 4u of the inner heat insulating material 4 is normally constructed so as to be lower than the top end 3u of the outer heat insulating material 3, and accordingly, the base plate portion 81 is fitted to both heat insulating materials (3 4) in order to make the positioning member 8 horizontal when it is placed and temporarily fixed to each top end (3u, 4u). In this embodiment, the inner end portion 81b of the base plate portion 81 is formed to be lower by h2 (for example, 10 mm) than the outer end portion 81a. When the vertical height positions of the top ends (3u, 4u) of both heat insulating materials (3, 4) are the same, h2 is zero. And the long hole 81h extended to a longitudinal direction is penetrated by the both ends (81a, 81b) of the base board part 81, and each top end (3u, 4u) of both heat insulating materials (3, 4) is carried out. ) Is formed with a notch 81g for alignment with a line (not shown) corresponding to the anchor bolt installation position.

  Next, the support plate portion 85 of the positioning member 80 is formed so as to be joined to the central portion 81c of the base plate portion 81 described above and to face the central portion 81c with a predetermined distance therebetween. In this embodiment, the support plate portion 85 of the positioning member 81 is formed by bending a metal plate material for forming both plate portions (81, 85) as shown in FIG. Although formed integrally with 81, the base plate portion 81 may be formed separately from the base plate portion 81 by welding or the like. The support plate portion 85 of the positioning member 80 includes a vertical portion 85v and a horizontal portion 85h. The horizontal portion 85h of the support plate portion 85 is formed so as to be positioned above the base plate portion 81 by a predetermined distance (for example, 35 mm).

  As shown in FIGS. 3 to 5, locking grooves (82, 86) having the same shape and aligned in the vertical direction are formed in the central portion 81c of the base plate portion 81 of the positioning member 80 and the horizontal portion 85h of the support plate portion 85. Is drilled through. The locking grooves (82, 86) of the two plate portions (81, 85) are lateral insertion ports (83, 87) formed so as to open to the side ends (81s, 85s) of the plate portions (81, 85). ) And bent portions (84, 88) that communicate with the lateral insertion ports (83, 87) and extend in the longitudinal direction of the plate portions (81, 85). The bent portions (84, 88) of the locking grooves (82, 86) of both plate portions (81, 85) have a dead end portion, and the concave portions (84a, 88a) are perpendicular to the dead end portion. It is formed so as to protrude in a direction away from the portion 85v. When the anchor bolt 70 for hole-down joining hardware is brought into contact with the recesses (84a, 88a) of the locking grooves (82, 86) of these two plate portions (81, 85), the anchor bolt 70 is attached to the positioning member 80. It is perpendicular to the base plate portion 81. Accordingly, if the top ends (3u, 4u) of both heat insulating members (3, 4) are horizontal, the anchor bolt 70 for the hole-down bonding hardware extends in the vertical direction.

  Further, the locking member is a member that can be locked by pressing the anchor bolt 70 for the hole down joint hardware against the recesses (84a, 88a) of the locking grooves (82, 86) of the both plate portions (81, 85). is there. In this embodiment, a thumbscrew 91 is selected as the locking member. The wing screw 91 is screwed into a female screw portion provided in the vertical portion 85v of the support plate portion 85 of the positioning member 80, and is hole-down joined to the concave portions (84a, 88a) of both plate portions (81, 85). The metal anchor bolt 70 can be pressed and locked.

Next, the enforcement method of this heat insulation foundation is demonstrated in detail.
(1) A pair of heat insulating materials (3, 4) to be the mold 2 are erected vertically on the discarded concrete 7 at a predetermined distance.

  (A) As shown in FIG. 7, the outer and inner heat insulating materials (3, 4) are each made of a plurality of heat insulating blocks (11, 21) made of a plate-like foamed resin made of an elastic material and their end faces (12, 22). ) Are connected to each other via a block connection mechanism 30. Since each heat insulation block (11, 21) is excellent in machinability and easy to process, shape management and dimensional management can be performed accurately. That is, each heat insulation block (11, 21) is composed of a straight block for forming the straight portion of the heat insulation foundation and an angle block for forming the corner portion. FIG. 6 shows the shape of the straight block (11, 21). Here, each block (11, 21) is formed so that adjacent surfaces are perpendicular to each other and opposing surfaces are parallel to each other. Referring to FIG. 6, the bottom surface b and side surface (c or d), the top surface [top end (3u or 4u)] and side surface (c or d), the bottom surface b and end 12 and the top surface [top end (3u or 4u). ] And the end portion 12 are formed at right angles, and the end surfaces 12, the side surfaces (c, d), and the bottom surface b and the upper surface [top end (3 u or 4 u)] are parallel to each other.

  (B) As shown in FIGS. 1 and 7, the outer heat insulating material 3 is erected on the discarded concrete 7 through the support rails 31. The support rail 31 is formed in a U-shape in cross section, and is disposed so that the opening is directed upward. On the other hand, the inner heat insulating material 4 is erected on the discarded concrete 7 so as to float from the discarded concrete 7 via a plurality of insertion rods 51. Here, in the outer heat insulating material 3, the unevenness of the discarded concrete 7 is absorbed by the support rails 31 and is erected on the discarded concrete 7 exactly vertically. Similarly, in the inner heat insulating material 4, the unevenness of the discarded concrete 7 is absorbed by adjusting the height of the plurality of insertion rods 51, and is erected vertically. The method of standing the inner heat insulating material 4 will be described in detail later in (c). Further, both the heat insulating materials (3, 4) are connected by the separator 62, and the width between the two (3,4) is kept constant. Thereby, each heat insulating material (3, 4) increases structural strength, and can maintain a more perpendicular state.

  By executing the above (a), (b) and the following (c), both the heat insulating materials (3, 4) are discarded and placed on the concrete 7 exactly vertically, and the respective top ends (3u, 4u) Can be placed horizontally. At this time, an inclined bar (not shown) whose one end is temporarily fixed to the top end 3u of the outer heat insulating material 3 and the other end is driven into a portion of the ground away from the outer heat insulating material 3 by a predetermined distance. Thus, the outer heat material 3 (and the inner heat insulating material 4 via the separator 62) may be kept in a vertical state. At this time, a metal cap (not shown) may be put on the top end 3u of the outer heat insulating material 3, and one end of the inclined rod 65 may be temporarily fixed to the cap with a fixing member such as a nail. By doing so, the inclined rod can be temporarily fixed to the outer heat insulating material 3 more reliably.

  (C) The inner heat insulating material 4 is arranged so as to float from the discarded concrete 7 in order to form the rising portion of the foundation concrete and the inner soil concrete together. While connecting the heat insulation block 21 using the block connection mechanism 30, the height position of each said heat insulation block 21 is adjusted, and the top ends of each said heat insulation block 21 are fundamental longitudinal directions (arrow Y direction shown in FIG. 7). The height position is aligned and horizontal.

  Here, the block connection mechanism 30 includes a plurality of connection plates (41-1, 41-2, 41-3) fixed to each heat insulating block 21, a insertion rod 51, and a receiving portion that receives the insertion rod 51. 111. The outer heat insulating material 3 is also formed by connecting a plurality of heat insulating blocks 11. However, as shown in FIG. , 41-2, 41-3) are attached and connected by a plurality of insertion rods 51. However, the receiving portion 111 is not used for disposing the outer heat insulating material 3. The length of the insertion rod 51 is determined in accordance with the height dimension of the heat insulation block 11 (that is, selected so as to be lower than the top end 3u when the insertion operation is completed). There is no need.

  Specifically, as shown in FIG. 8, each of the heat insulating blocks 21 has a plurality of connection plates (the uppermost connection plate 41-1, the interrupted connection plate 41-2, the lower connection). The plate 41-3) is fixed. The plurality of connection plates (41-1, 41-2, 41-3) of each heat insulation block 21 correspond to the plurality of connection plates (41-1, 41-2) of the counterpart heat insulation block 21 to be connected. , 41-3) and the end portions 42 of each other. And the through-hole 44 is formed in the both ends 42 of the some connection board (41-1, 41-2, 41-3) of each heat insulation block 21 so that each may be arranged in the up-down direction with the same diameter (d). Is formed.

  The insertion rod 51 has the same diameter as the through hole 44 of each connection plate (41-1, 41-2, 41-3) and moves in the axial direction while being inserted into the through hole 44. It has a possible holding portion 52 and a tapered tip portion (wedge portion 53) whose diameter decreases as the distance from the holding portion 52 increases. In FIG. 9 and the like, reference numeral 55 denotes the tip of the insertion rod 51. Further, the heat insulating block (21, 21) to be connected is engaged with the through hole 44 of the uppermost connection plate 41-1 in a state where the heat insulating blocks (21, 21) to be connected are maintained in a portion above the holding portion 52 of the insertion rod 51. The male screw portion 101 that can support both the heat insulating blocks (21, 21) and can change the height position of both the heat insulating blocks (21, 21) when the insertion rod 51 is rotated around the axis. In addition, the upper end portion (wrench engaging portion 102) of the insertion rod 51 is in the state where both the heat insulating blocks (21, 21) in a state where the male screw portion 101 is screwed into the through hole 44 of the uppermost connection plate 41-1. ) To be lower than the upper end surface.

  Further, as shown in FIG. 18, the receiving portion 111 is disposed at a portion where the inner heat insulating material 4 is installed on the upper surface of the discarded concrete 7, and receives the tip portion (wedge portion 53) of the insertion rod 51 to receive a vertical axis. It is formed so that it can be supported while allowing rotation around it.

  Furthermore, in the block connection mechanism 30 described above, the through holes 44 of the plurality of connection plates (41-1, 41-2, 41-3) of each heat insulation block 21 have respective centers as shown in FIG. Retracted from the end face 22 of each heat insulation block 21 by a predetermined length D within a length range in which the block can be elastically deformed. In FIG. 11, reference numeral 24 denotes a recess formed on the end face 22 of the heat insulation block 21. In addition, as shown in FIG. 12, when the end faces (22, 22) of both heat insulation blocks (21, 21) to be connected are brought close to each other, the other through hole 44 partially overlaps and a common opening is formed. The wedge portion 53 of the insertion rod 51 is inserted from the common opening portion of the through hole 44 of the uppermost connection plate 41-1 of the heat insulation blocks (21, 21) to form the plurality of connections. When the through hole 44 of the plate (41-1, 41-2, 41-3) and the holding portion 53 of the insertion rod 51 are engaged, the heat insulating blocks (21, 21) are moved as shown in FIG. Each end face (22, 22) is formed so as to be in a position where the end faces (22, 22) are pressed against each other by elastic force.

  When the block connection mechanism 30 as described above is used, when joining two heat insulating blocks (21, 21), as shown in FIG. 10, the operator manually holds both heat insulating blocks (21, 21). It is made to move and the end surfaces (22, 22) are brought close to each other. Then, as shown in FIGS. 12 and 14, the end portions 42 of the plurality of connection plates (41-1, 41-2, 41-3) fixed to the both heat insulating blocks (21, 21) are respectively in the vertical direction. The through holes 44 are partially overlapped to form a common opening. In this state, as shown in FIG. 15, the insertion rod 51 is connected to the lower connection plate (41-2) from the common opening portion of the through hole 44 of the uppermost connection plate 41-1 of both heat insulating blocks (21, 21). 41-3) is inserted toward the common opening of the through hole 44, and the holding portion 52 of the insertion rod 51 is shared by the through holes 44 of the plurality of connection plates (41-2, 41-3). When engaged with the opening portion, the plurality of connecting plates (41-1, 41-2, 41-3) [therefore, both heat insulating blocks] move to positions where the respective through holes 44 are aligned. As a result, as shown in FIG. 16, the end faces (22, 22) of the both heat insulating blocks (21, 21) are pressed against each other by their respective elastic forces and are brought into close contact with each other. That is, both the heat insulating blocks (21, 21) are securely connected to each other with their end faces (22, 22) in close contact (contact with a predetermined tightening allowance).

  Therefore, in this state, as shown in FIG. 18, if the distal end portion (53) of the insertion rod 51 is discarded and inserted into the receiving portion 111 on the concrete 7, both the heat insulating blocks (21, 21) are mutually end surfaces (22 , 22) is supported by the insertion rod 51 in a closely contacted state (that is, in a connected state), and is supported in a state of floating from the discarded concrete 7. Here, in order to adjust the height of the both heat insulation blocks (21, 21) from the discarded concrete 7, the insertion rod 51 and the two alternative heat blocks (21, 21) are moved relative to each other. As shown in FIG. 17, the male screw 101 is engaged with the through hole 44 of the uppermost connection plate 41-1 by rotating 51 around the vertical axis. By increasing or decreasing the amount of rotation of the insertion rod 51, the heights of the two heat insulating blocks (21, 21) can be changed. In this way, the height positions of both the heat insulating blocks (21, 21) can be adjusted so that their upper end faces can be aligned at the same horizontal position. Since the upper end portion (102) of the insertion rod 51 comes to a position lower than the upper end surfaces of the both heat insulating blocks (21, 21) connected, troublesome post-processing (inking work, nailing work and inner heat insulating member) There is no need to carry out a partial cutting work.

  Thus, when both the heat insulating materials (3, 4) to be the mold 2 are arranged on the discarded concrete 7 so that the respective top ends (3u, 4u) are horizontal, as shown in FIG. 1 and FIG. In addition, the positioning notches 81g of the base plate portion 81 are aligned with the positions where the anchor bolt installation lines for the hole down joint hardware at the top ends (3u, 4u) are marked. Place. And the positioning member 80 is temporarily fixed to each top end (3u, 4u) of both heat insulating materials (3, 4) using a nail etc. Thus, the positioning member 80 is temporarily fixed horizontally on the top ends (3u, 4u) of the both heat insulating members (3, 4).

  Next, in a posture in which the anchor bolt 70 for hole-down joining hardware is raised, the lateral insertion ports (83, 87) of the locking grooves (82, 86) of both plate portions <81, 85> of the positioning member 80 are pointed out. It is moved and inserted into the locking grooves (82, 86) (see FIGS. 3 to 5). Subsequently, the anchor bolt 70 is advanced in the bent portions (84, 88) of the locking grooves (82, 86) and appropriately moved in the lateral direction until it comes into contact with the concave portions (84a, 88a). Then, with the anchor bolt 70 in contact with the recesses (84a, 88a) of the locking grooves (82, 86), the anchor bolt 70 is strongly pressed against the recesses (84a, 88a) using the thumbscrew 91. As a result, the anchor bolt 70 for the hole-down joining hardware is vertically locked to the positioning member 80 with the upper portion protruding by a predetermined length and the lower portion entering the concrete placement space SS. Here, since the positioning member 80 is temporarily fixed to the top ends (3u, 4u) of both heat insulating materials (3, 4) arranged horizontally, the anchor bolt 70 for the hole-down joint hardware extends in the vertical direction. Then, it is set so as to enter the concrete placement space S by a predetermined distance and protrude from the space S by a predetermined length.

  In this state, concrete is placed in the concrete placement space S. Then, after the placing operation is completed and the concrete is sufficiently solidified (therefore, the anchor bolt 70 for the hole-down joint hardware is fixed to the rising portion of the concrete), the thumbscrew 91 is loosened and the positioning member 80 and The fixation with the anchor bolt 70 is released, and the temporary fixing of the positioning member 80 to both heat insulating materials (3, 4) is also released. Then, the positioning member 80 is removed from the anchor bolt 70 by appropriately moving in the lateral direction.

It is a figure for demonstrating the construction method of the heat insulation foundation which concerns on this invention. It is a figure for demonstrating how to form the arrangement | positioning method of a positioning member. It is a perspective view which shows a positioning member. It is a front view which shows a positioning member. It is a top view which shows a positioning member. It is a figure for demonstrating the shape of a heat insulation block. It is a top view for demonstrating the connection of each heat insulation block. It is a longitudinal cross-sectional view for demonstrating the some connection board fixed to the heat insulation block which forms an inner side heat insulating material. It is a figure for demonstrating a bar. It is a longitudinal cross-sectional view for demonstrating the connection method of the heat insulation block for inner side heat insulating material formation. It is a top view for demonstrating the connection method of the heat insulation block for inner side heat insulating material formation. It is a top view for demonstrating the connection method of the heat insulation block for inner side heat insulating material formation. It is a figure for demonstrating the connection method of the heat insulation block for inner side heat insulating material formation. It is a figure for demonstrating the connection method of the heat insulation block for inner side heat insulating material formation. It is a figure for demonstrating the connection method of the heat insulation block for inner side heat insulating material formation. It is a figure which shows the state which connected and fixed the heat insulation block for both inner side heat insulating materials with the insertion rod. It is a figure for demonstrating height adjustment of the heat insulation block for inner side heat insulating material formation. It is a figure which shows the state after height adjustment of the heat insulation block for inner side heat insulating material formation. It is a figure which shows the heat insulation block for outer heat insulating material formation.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heat insulation base 2 Formwork 3 Outer heat insulating material 4 Inner heat insulating material 7 Waste concrete 11 Heat insulation block 21 Heat insulation block 41-1 Uppermost connection board 41-2 Middle connection board 41-3 Lower connection board 42 Connection of each stage Plate end 44 Through hole
51 Inserting rod 52 Holding portion 53 Wedge portion 62 Separator 70 Anchor bolt 80 for hole-down joint hardware Positioning member 81 Base plate portion 82 Locking groove 83 Lateral insertion port 84 Bent portion 84a Recessed portion 85 Support plate portion 86 Locking groove 87 Lateral insertion Mouth 88 Bent part 88a Concave part 91 Thumb screw (locking member)
101 Male thread part 111 Receiving part S Concrete placement space

Claims (1)

A mold frame is formed from a pair of heat insulating materials standing in parallel at a predetermined distance on abandoned concrete, and both the heat insulating materials are elastic materials made of a plurality of heat insulating blocks made of plate-like foamed resin. It is formed by connecting via a block connection mechanism, and anchor bolts for hole-down joint hardware are arranged at a predetermined position of the concrete placement space between the two heat insulating materials, and then the concrete placement space A construction method of a heat insulating foundation constructed by placing concrete,
A base plate part that can be fixed by being brought into contact with the top ends of the two heat insulating materials in a planar manner across the concrete placing space, and joined to the base plate part in a vertical direction with a central portion of the base plate part. A positioning member composed of a support plate portion facing away from each other is provided, and for both meals of this positioning member, a recess is formed in the portion corresponding to the anchor bolt embedding position that opens at the side of each plate portion and extends in the base width direction. The formed locking groove is provided, and includes a locking member that presses and fixes the anchor bolt for hole-down joining hardware against the concave portion of the locking groove of the positioning member,
Before placing concrete, the two heat insulating materials are arranged so that each top end is horizontal in the foundation width direction and the foundation longitudinal direction,
In that state, fix the base plate part of the positioning member to the top ends of both heat insulating materials,
Next, the anchor bolt for hole-down joining hardware is inserted from the lateral insertion port of the locking groove of the positioning member and positioned in the concave portion of the bent portion, and in this state, the anchor bolt for hole-down joining hardware is inserted into the concave portion by the locking member. Press to fix,
After that, a method for constructing a heat insulating foundation in which concrete is placed in the concrete placement space.

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