JP6457906B2 - Leg frame member connection hardware and leg frame member - Google Patents

Description

  According to the present invention, it is possible to constitute a robust connection structure, and it is possible to appropriately ensure stress transmission between all the frame members. It is possible to ensure the integrity of the anchor and the frame member by ensuring that the anchor and the frame member are securely transmitted. The connection between the frame members is flexible, accurate, and easy to work with. The present invention relates to a method frame member connecting hardware and a method frame member that can be applied to various types of method frame members having different performances.

  A slope reinforcing structure that reinforces a slope and prevents the slope from being collapsed is known. The slope reinforcement structure is constructed by assembling long and slender rod-like slope frame members of the same length along the slope in the form of a lattice in four directions in all directions. The frame member is usually made of reinforced concrete or steel.

  In the lattice form of the slope reinforcement structure, the lengthwise end faces of the four normal frame members are assembled at the intersection of the lattices, and the lengthwise end faces of these four normal frame members are connected by some technical technique. Formed by.

  Patent Documents 1 to 3 are known as techniques for connecting the end faces in the length direction of the four frame members at intersections in a lattice form.

  The “legal frame” disclosed in Patent Document 1 is a vertical frame in which reinforcing bars are arranged in a grid, and a bottomed cylindrical connecting pipe is set up perpendicular to the natural slope in the intersection of the legal frame members. Installed in a state, penetrated through the tube wall of the connecting pipe with a rebar having an external thread at the end, fastened with a nut, and placed an anchor plate on the end of the reinforcing bar protruding inward of the connecting pipe The anchor pipe is penetrated into the ground through the anchor plate and the bottom of the connecting pipe to fix the connecting pipe, and the inside of the connecting pipe is filled with concrete.

  The "structure of the joint part of the precast concrete method frame" of Patent Document 2 forms a rectangular closed joint space part between the end part of the precast concrete vertical frame method frame and the end part of the horizontal beam method frame. In this joint space, the reinforcing bars projecting from the ends of the vertical beam usage frame positioned in the vertical direction and the horizontal beam usage frame positioned in the horizontal direction are arranged. Reinforcing bars are connected to each other by connecting fittings, and anchor bolts with anchor plates that are filled with a filler such as mortar and cover the upper surface of the joint space are driven into the joint space. Yes.

  The “slope protection method” of Patent Document 3 is a method of an anchor tension member in which a vegetation sheet and a protective net for suppressing the vegetation sheet are placed on the slope, and steel connecting members having an L-shaped cross section are placed on the slope at predetermined intervals. Arranged in a grid pattern on the protective net of the protruding part from the surface, the ends of the connecting members on the four sides are overlapped at the position of the protruding part, and the protruding part is passed through the end through hole and fixed with a fastener By doing so, the protective sheet and the protective net are firmly fixed, and the vegetation is improved.

Japanese Utility Model Publication No.59-10198 Japanese Utility Model Publication No. 6-12534 JP 2001-226993 A

  In Patent Document 1, the connecting pipe to which the precast concrete frame member is joined may be deformed by a load acting on the frame member. If the connecting pipe is deformed, it is impossible to ensure stress transmission between the frame members. Therefore, the connecting pipe must be designed with a thick plate thickness that does not deform with respect to the load acting on each of the four frame members.

  If the plate thickness of the connecting pipe is designed to be thick, the rigidity at the intersection will increase, so this time, it will be necessary to increase the cross-sectional performance of the normal frame member. It was not reasonable.

  When the anchor is used in combination, an anchor plate is placed on the end of the reinforcing bar protruding inward of the connecting pipe, and the load acting on the anchor is received by the reinforcing bar via the anchor plate. The diameter of the reinforcing bar of the frame member must be made thicker than the diameter of the reinforcing bar required as the frame member for the anchor load.

  Regarding the placement of the anchor plate on the end of the reinforcing bar, it is difficult to install the anchor plate evenly with respect to the end of all the reinforcing bars, and therefore the anchor load acts on some of the frame members. It has been difficult to ensure the integrity between the anchor and the frame member.

  The anchor plate must be prevented from being deformed by the anchor load because the anchor plate is placed so as to span the end of the reinforcing bar, and the thickness of the anchor plate has to be increased. .

  The performance of the frame member is determined by the cross section of the frame member, the strength of the concrete, the number of reinforcing bars, the bar arrangement interval, and the like. For this reason, various types of connecting pipes have to be prepared and prepared according to the number of bar arrangements and bar arrangement pitch. In other words, the connecting pipe cannot be used in common for various types of frame members having different performances.

  Four frame members are joined to the connecting pipe, whereby the frame members are connected to each other via the connecting pipe. It was necessary to fasten all the reinforcing bars of all the frame members to the connecting pipe, and workability was not good.

  Further, for example, in order to integrally join the remaining frame members to the connection tube whose installation position is determined by joining two or three method frame members, the connection tube cannot be moved. Therefore, the frame member must be moved and joined to the connecting pipe. In order to integrate the remaining frame members and the connecting pipes, they are slid and moved so that the frame members are pulled by the fastening force of the lateral nuts that fasten the frame members to the connecting pipes, and are in close contact with the connecting pipes. Need to be firmly joined.

  However, precast concrete frame members are heavy, and it is almost impossible to join them by sliding with the fastening force of the nuts. For this reason, all frame members are integrated into the connecting pipe, It was difficult to connect the members together at the intersection.

  In Patent Document 2, the joining space is filled with a filler, but the reinforcing bars of the vertical beam frame and the reinforcing bars of the horizontal beam frame whose end faces in the length direction face each other are connected to each other, Specifically, it is only connected with a turnbuckle, and the reinforcing bars of the vertical and horizontal beam frames are not connected, so it is not possible to transmit and bear stress between all the frame frames, The connection structure was not efficient.

  Although the reinforcing reinforcing bars are embedded in the filler, a load acting on the anchor acts on the reinforcing reinforcing bars via the anchor plate. For this reason, as in the case of Patent Document 1, the diameter of the reinforcing bar of the normal frame must be made larger than the diameter of the reinforcing bar required as the normal frame, as long as the anchor load is provided.

  The reinforcing bar reinforcement depths of the vertical beam frame and the horizontal beam frame differ depending on the relationship in which these reinforcing bars cross each other. For this reason, it is difficult to arrange the anchor plate evenly with respect to all the reinforcing bars, and accordingly, the anchor load and the frame are integrated with each other as in Patent Document 1, for example, the anchor load acts on a part of the frame. It was difficult to ensure the property.

  Since the reinforcing bars of the vertical beam frame and the horizontal beam frame are arranged in an intersecting state, two types of frame frames with different reinforcing bar positions must be prepared and prepared.

  Since the legal frames are connected to each other sideways with connecting brackets, specifically turnbuckles, it is necessary to move the legal frames so that they are pulled together by a turnbuckle operation. . However, the precast concrete frame is heavy, and it is difficult to slide by turnbuckle operation, and the workability is not good.

  Moreover, since it is necessary to rotate and connect the turnbuckles simultaneously for all the reinforcing bars on both the tension side and the compression side, the work is extremely troublesome and the feasibility of construction is poor. Furthermore, since the reinforcing reinforcing bars are connected to each other through the turnbuckle, it was not possible to cope with the construction error.

  In Patent Document 3, since the connecting members are simply overlapped and connected, the stress acting on any of the connecting members cannot be reliably transmitted to all other connecting members, and the connecting structure is not efficient. Met. Therefore, even if a series of anchors are inserted through the through holes of the connecting members, the anchor load is not always transmitted to all the connecting members, and it is difficult to ensure the integrity of the anchors and the connecting members. It was.

  Since the connecting members are connected to each other, the four connecting members have to be prepared and prepared with different dimensions. For the superposition, each connecting member is provided with a step having a different height. However, due to a manufacturing error of the step size and a construction error at the time of installation, there is a possibility that it cannot be properly installed on the slope.

  Since the anchors are inserted through the through holes, the anchors could not be provided if the through holes were misaligned.

  The present invention was devised in view of the above-described conventional problems, and can constitute a robust connection structure, and can appropriately ensure stress transmission between all the frame members. Even when anchors are used together, the anchor load can be handled by itself and evenly transmitted to each frame member to ensure the integrity of the anchor and frame member. It is possible to construct the frame with flexibility, high accuracy, good workability, and can be used in common for various types of frame members with different performance. It aims at providing a frame member.

The hardware for connecting a frame member according to the present invention includes four frame members arranged in the vertical, horizontal, or diagonal directions along the slope on the slope, and the longitudinal center axes of the respective frame members. In the gathering region including the gathering part where the four gathering frames are joined, the lengthwise end faces of these four method frame members are joined to each other and connected to each other in a square shape with the same outer dimensions. And four connecting blocks for projecting outwardly from the lengthwise end surface of the method frame member along the longitudinal center axis thereof, and for each of the four method frame members formed, Four connection pieces for sequentially connecting the connection block around the assembly part, and the four connection blocks are arranged at the longitudinal central axis positions of the four frame members, respectively. , Adjacent edges face each other 4 The facing positions of the four connecting blocks are arranged in a circulating manner around the collecting portion, and are arranged adjacent to each other around the collecting portion, and the connecting blocks are aligned on at least the upper surface or the lower surface of the four connecting blocks. A connection reference plane is formed, and each of the four connection pieces is superposed on the connection reference plane for each of the four connection blocks, and from the overlapped connection block around the assembly portion. The connecting piece is provided so as to protrude toward another adjacent connecting block, and the connecting piece passes through the connecting reference plane with respect to the other connecting block adjacent to the connecting block provided with the connecting piece. and a bolt for fastening the other of the connecting block, these connecting blocks together by joining possible stress transfer around the collecting portion, the connecting piece, Provided detachably bolted to the serial connection block, wherein the bolt hole for the bolt joint is long hole shape.

  The four connection blocks are adjacent to the connection block with the length direction central axis positions of the four normal frame members sandwiched between the length direction central axis positions of the four normal frame members. Four facing positions where the edges face each other are circulated around the aggregated portion, are circulated and arranged adjacent to each other around the aggregated portion, and at least the upper or lower surfaces of the four linked blocks are connected to each other. Are aligned on the same plane to form a connection reference plane.

  The connecting block is formed with a notch facing the collecting portion, and the collecting portion and its periphery are surrounded by the notched portions of the four connecting blocks to form a penetrating portion. It is characterized by.

  Fixing members for fixing anchors are installed on the upper surfaces of the four connecting blocks that are aligned flush with each other.

  The connection block is provided with an attachment plate for attaching it to the end surface in the length direction of the frame member.

  The method frame member according to the present invention is characterized in that the connection block of the method frame member connection hardware is provided on at least one of a pair of lengthwise end faces of the method frame member.

  The method frame member according to the present invention is characterized in that the method frame member connection hardware is provided on at least one of a pair of lengthwise end faces of the method frame member.

The above-mentioned hardware for connecting a frame member is provided on each of a pair of lengthwise end faces of the frame member, and these frame members for connecting the frame are cross sections of the frame member at the center position in the length direction of the frame member. It is characterized by being provided point-symmetrically in plan view with respect to the center .

The above-mentioned hardware for connecting a frame member is provided on each of a pair of lengthwise end faces of the frame member, and these frame members for connecting the frame are cross sections of the frame member at the center position in the length direction of the frame member. Is provided with line symmetry in plan view .

  In the method frame member connection hardware and the method frame member according to the present invention, a robust connection structure can be formed, and stress transmission between all the method frame members can be appropriately ensured. Even in the case of combined use, the anchor load can be handled by itself and evenly transmitted to each frame member to ensure the integrity of the anchor and the frame member. Connection can be made with flexibility, accuracy, and workability, and can be used in common for various types of frame members with different performance.

1 is a plan view showing a state in which four method frame members are connected using four method frame member connection hardwares, according to a preferred embodiment of a method frame member connection hardware and a method frame member according to the present invention. is there. It is a schematic perspective view of the frame member connection metal fitting used for the connection structure shown in FIG. It is explanatory drawing explaining the state which assembled the frame member connection metal fitting shown in FIG. In the connection structure shown in FIG. 1, it is explanatory drawing explaining the dimensional relationship of the normal frame member connection metal fitting arrange | positioned adjacently. It is explanatory drawing explaining a mode that the hardware for a frame member connection shown in FIG. 2 was attached to the frame member. It is sectional drawing of the method frame member shown in FIG. It is sectional drawing of the other example of the method frame member shown in FIG. It is explanatory drawing explaining the 1st process-the 3rd process of connecting four method frame members using the method frame member connection hardware shown in FIG. FIG. 9 is an explanatory diagram for explaining a fourth process to a fifth process for connecting the four frame members following FIG. 8. It is explanatory drawing which shows the modification corresponding to FIG. It is a top view which shows the connection state in multiple places using suitable embodiment of the frame member which concerns on this invention. It is a top view which shows the normal frame member corresponding to the connection state shown in FIG. It is a top view which shows the other example of the connection state in multiple places using suitable embodiment of the frame member which concerns on this invention. It is a top view which shows the normal frame member corresponding to the connection state shown in FIG. FIG. 5 is an explanatory view of the vicinity of a gathering region showing a case in which the anchor is used together, which is a preferred embodiment of the hardware for connecting a frame member according to the present invention. FIG. 6 is a preferred embodiment of the frame member coupling hardware according to the present invention, and is an explanatory view of the periphery of the assembly region showing another example when an anchor is used in combination. It is explanatory drawing explaining the modification about the connection block which comprises the hardware for a frame member connection which concerns on this invention. It is explanatory drawing explaining the modification of the arrangement configuration of the connection block which comprises the frame member connection metal fitting which concerns on this invention. It is explanatory drawing explaining the modification of the method of the connection of the connection block which comprises the hardware for a frame member connection which concerns on this invention. It is explanatory drawing explaining the various examples of the installation position of the connection piece which comprises the hardware for a frame member connection which concerns on this invention. It is a top view of the method frame member which shows the modification of the bolt hole which the connection bolt used for the method frame member connection metal object which concerns on this invention is penetrated. It is explanatory drawing explaining the connection state by the modification of the bolt hole shown in FIG. It is a sectional side view of the gathering area explaining the case where position shift arises in the thickness direction of the connection block which constitutes the frame for connecting a frame member concerning the present invention. It is a sectional side view of the gathering area explaining the case where the inclination arises in the thickness direction of the connecting block which constitutes the frame for connecting the frame member according to the present invention.

  DESCRIPTION OF EMBODIMENTS Preferred embodiments of a method frame member connecting hardware and a method frame member according to the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a plan view showing a state in which four method frame members are connected using four method frame member connection hardwares according to the present embodiment, and FIG. 2 is a schematic perspective view of a method frame member connection hardware. FIG. 3 is an explanatory view for explaining the assembled state of the frame member connecting hardware shown in FIG. 2, and FIG. 4 is an explanatory view for explaining the dimensional relationship of the frame member connecting hardware arranged side by side. 5 is an explanatory diagram for explaining how the frame for connecting the frame member is attached to the frame member, FIG. 6 is a cross-sectional view of the frame member shown in FIG. 5, and FIG. FIG. 8 is a cross-sectional view of the frame member showing another method for attaching the frame member, and FIG. 8 shows the first to third steps of connecting the four frame members using the frame member coupling hardware shown in FIG. FIG. 9 is an explanatory diagram for explaining the fourth to fifth steps for connecting the four frame members following FIG. 8, and FIG. FIG. 11 is a plan view showing a connection state at a plurality of locations, FIG. 12 is a plan view showing a frame member corresponding to the connection state shown in FIG. 11, and FIG. FIG. 14 is a plan view showing a frame member corresponding to the connection state shown in FIG. 13, and FIG. 15 is a gathering region showing a case where an anchor is used in combination. FIG. 16 is an explanatory diagram of the periphery of the collection area showing another example in the case of using an anchor together, FIG. 17 is an explanatory diagram illustrating a modification example of the connection block, and FIG. FIG. 19 is an explanatory diagram for explaining a modified example of how to connect the connecting blocks, FIG. 20 is an explanatory diagram for explaining various examples of the installation positions of the connecting pieces, and FIG. Is the bolt hole through which the connecting bolt is inserted. FIG. 22 is an explanatory diagram for explaining a connection state according to a modified example of the bolt hole shown in FIG. 21, and FIG. 23 shows a positional deviation in the thickness direction of the connection block. FIG. 24 is a side cross-sectional view of the collective region illustrating a case where an inclination occurs in the thickness direction of the connecting block.

  Hereinafter, the length direction, the width direction, and the thickness direction of the frame member 1 installed along the slope on the slope surface are respectively the length direction, the width direction, and the thickness direction of the frame member connecting hardware 2. Will be described. Moreover, except for a part of the explanation, a case where the cross-sectional dimensions (width dimension and thickness dimension) of the frame member 1 are the same will be described as an example.

  As described above, the slope reinforcing structure that reinforces the slope and prevents the slope from collapsing is provided on the slope with the elongated rod-shaped slope frame member 1 having the same length along the slope. It is constructed by assembling in a lattice form in all directions. The frame member 1 is usually formed of reinforced concrete, steel, resin material, thinned material, or the like. In the present embodiment, a method frame member 1 made of precast concrete will be described as an example.

  In the present embodiment, as shown in FIG. 1, the lattice form of the slope reinforcing structure is such that the lengthwise end faces 1 a of the four normal frame members 1 are gathered at the intersections of the lattices, and these four normal frame members are gathered. It is formed by connecting one longitudinal end face 1a with four method frame member connection hardwares 2 (hereinafter referred to as connection hardware) provided on each method frame member 1.

  Specifically, in the present embodiment, the four connecting hardwares 2 are arranged in such a manner that the four frame members 1 arranged so as to form a lattice on the slope are the longitudinal center axes X of the respective frame members 1. In the gathering region Z including the gathering portion Y where the gathering ends, the end faces 1a in the length direction of the four frame members 1 are joined together and connected to each other. The length direction central axis X of the frame member 1 refers to a line passing through the center of the cross section of the frame member 1 in the length direction.

  The gathering portion Y where the longitudinal central axes X gather together means that the four normal frame members 1 are such that the longitudinal central axes X of the four normal frame members 1 completely intersect at one point (intersection of grids). Due to manufacturing tolerances of the frame member 1 and the connecting hardware 2 and tolerances in the installation work, the longitudinal center axes X are slightly misaligned with each other without being gathered at one point. Thus, it means that the four frame members 1 are arranged in a manner of gathering near the intersection of the lattice.

  The collective region Z refers to a region that includes the collective portion Y therein and is roughly surrounded by the lengthwise end faces 1a of the four frame members 1.

  The connection hardware 2 mainly includes four connection blocks 3 for providing the four frame members 1 and connection pieces 4 for connecting the four connection blocks 3 to each other. The connecting block 3 is provided on the lengthwise end face 1a of each frame member 1 that faces the collecting area Z and surrounds the collecting area Z. As shown in FIG. 1, the connecting block 3 is arranged so as to fill the gathering region Z clockwise or counterclockwise around the gathering portion Y.

  More specifically, as shown in FIGS. 1 to 5, the four connecting blocks 3 are made of metal such as steel, and are not limited to a cutout portion 5 described later, and have a planar rectangular shape with the same outer dimensions. It is formed in a rectangular parallelepiped shape. 3A is a top view of the connecting hardware 2, FIG. 3B is a front view, FIG. 3C is a bottom view, FIG. 3D is a side view, and FIG. FIG.

  The connecting block 3 is provided so as to protrude outward from the lengthwise end face 1a of the method frame member 1 along the longitudinal center axis X of each of the four method frame members 1. The four connecting blocks 3 arranged so as to fill the gathering area Z are arranged in a circulating manner around the gathering portion Y in the clockwise or counterclockwise direction as described above.

  The adjacent edges of the connecting blocks 3 adjacent to each other around the gathering portion Y face each other at four positions in the lengthwise central axis X position of the four frame members 1, and these four facing positions P are around the gathering portion Y. In this manner, the four connected blocks 3 are circularly arranged adjacent to each other around the gathering portion Y. In other words, in the present embodiment, one edge of each of the rectangular connecting blocks 3 is positioned at the position of the longitudinal center axis X of the frame member 1 and protrudes from the frame member 1.

  In the illustrated example, since the width dimensions of the four frame members 1, in other words, the width dimensions of the lengthwise end faces 1 a are the same, the planar form of the gathering region Z is a square shape, and the center of the frame member 1 in the length direction The axis X divides the square shape of the gathering region Z into four square shapes having the same size. Therefore, each of the four connecting blocks 3 does not take into account the cutout portion 5. Four planar square shapes having the same external dimensions are used.

  In the present embodiment, the four connecting blocks 3 have the same thickness, and the connecting blocks 3 are aligned with each other in the thickness direction of the frame member 1. 3, a series of connection reference surfaces 6 are formed in the gathering region Z on the upper surface and the lower surface in the thickness direction of the connection blocks 3. The upper and lower surfaces of the connection block 3 forming the connection reference surface 6 are formed as flat surfaces.

  In the present embodiment, the connecting block 3 is provided at the center in the thickness direction of the method frame member 1, which is a neutral position in the bending deformation of the method frame member 1. In the present embodiment, the connecting block 3 is attached to the longitudinal direction end surface 1a on the longitudinal direction base end surface 3a including the edge facing the longitudinal direction end surface 1a of the frame member 1. A mounting plate 7 is provided.

  Accordingly, the connecting block 3 is protruded from the mounting plate 7 in a component state before being attached to the frame member 1 and is attached to the lengthwise end surface 1 a of the frame member 1 via the mounting plate 7. And projecting from the end surface 1a in the length direction. The attachment plate 7 of each connection block 3 is formed with an outer dimension that does not compete with the attachment plate 7 of the adjacent connection block 3.

  The connection block 3 may be provided on the frame member 1 by directly embedding the connection block 3 in the frame member 1 without using the mounting plate 7. The four connecting blocks 3 may have the same thickness or different thicknesses.

  The connection piece 4 is made of a metal such as steel and is formed in a plate shape or a rectangular parallelepiped shape having a thickness, and is used for sequentially connecting the connection block 3 around the gathering portion Y. Four connecting pieces 4 are used in accordance with four facing positions P where adjacent connecting blocks 3 face each other. Each of the four connection pieces 4 is provided so that one end portion in the length direction along the direction straddling the facing position P overlaps the connection reference surface 6 with respect to each of the four connection blocks 3.

  The connection reference surface 6 is formed on at least the upper surface or the lower surface of the connection block 3, so that one end of the connection piece 4 is overlapped with the upper surface or the lower surface of the connection block 3. When the connection reference surface 6 is formed on the upper surface and the lower surface of the connection block 3, the connection reference surface 6 may be overlapped with the upper surface of the connection block 6 or may be overlapped with the lower surface. The connecting piece 4 is provided close to the edge side opposite to the edge of the facing position P. In order to increase the size of the connecting piece 4 relative to the connecting block 3, it is preferable that the connecting piece 3 is provided in alignment with the opposite edge.

  Each connecting piece 4 is provided with its other end in the length direction projecting from each overlapping connecting block 3 toward another connecting block 3 adjacent to the periphery of the gathering portion Y. The other end of the connection piece 4 is superimposed on the connection reference surface 6 on the upper surface or the lower surface of the other connection block 3. One end of the connecting piece 4 may be integrally joined to the connecting block 3 by welding or the like, or may be integrally attached detachably by fastening with the mounting bolt 8 and a nut.

  In the illustrated example, one end of the connection piece 4 is connected to the mounting bolt 8 inserted through a bolt insertion hole formed in a series through the connection piece 4 and the connection block 3 by fastening a nut. The block 3 is detachably provided. Thereby, one connection block 3 and one connection piece 4 are comprised as one set.

  The connection piece 4 is connected to the other connection block 3 adjacent to the connection block 3 integrally provided by overlapping the connection piece 4, and the connection piece 4 and the other connection block 3 are fastened through the connection reference plane 6. These connecting blocks 3 are connected to each other around the gathering portion Y by connecting bolts 9 so that stress can be transmitted.

  Specifically, bolt holes 10 and 11 are formed in the other end portion of the connection piece 4 and the other connection block 3 to be connected to each other so as to be connected in series. The adjacent connection blocks 3 are connected to each other by the connection piece 4 so that stress can be transmitted, by bolt joining in which a nut is fastened to the connection bolt 9 inserted through the connection piece 9.

  In the illustrated example, three connection pieces 4 are provided on the connection reference surface 6 on the lower surface of the connection block 3, and the three connection blocks 3 are connected to each other at three locations, and one connection piece 4 is the upper surface of the connection block 3. The connection reference plane 6 is connected to connect a pair of connection blocks 3 to each other at one location, thereby connecting the four connection blocks 3 in an array that circulates around the gathering portion Y.

  Connecting at the lower surface of the connecting block 3 is preferable because it is easy to maintain the soundness of the connecting portion. The connection on the upper surface of the connection block 3 is preferable for smoothly performing the connection operation.

  In the present embodiment, at the stage of installing the last fourth connecting block 3, the gathering region Z is almost blocked, and it is difficult to perform bolted connection from the lower surface of the connecting block 3, so that the fourth The connection work by the connection piece 4 is performed on the connection reference surface 6 on the upper surface of the connection block 3.

  As shown in FIG. 4, the dimensional relationship between the connecting block 3 and the connecting piece 4 is at least a width dimension obtained by subtracting the width dimension of the connecting piece 4 from the entire width dimension of the connecting block 3 (the width of the portion protruding from the connecting piece 4). It is preferable from the viewpoint of construction that the dimension) W1 is larger than the width dimension W2 of the connecting piece 4 (W1> W2).

  As shown in FIG. 5, the connecting hardware 2 configured in this manner is provided by being attached to the lengthwise end surface 1 a of the frame member 1. FIG. 5A is a partial top view showing the frame member 1 including attachment / detachment of the connection piece 4 to / from the connection block 3, and FIG. 5B shows the connection piece 4 attached to the connection reference surface 6 on the lower surface. FIG. 5C is a front view of the frame member 1 when the connection piece 4 is attached to the upper connection reference surface 6.

  As shown in FIG. 6, the attachment hardware 2, specifically, the connection block 3, is attached to the nut member 12 embedded in the lengthwise end surface 1 a of the precast concrete method frame member 1. As shown in FIG. 7, the rod anchor 13 is welded and joined to the mounting plate 7 in advance, and the frame member 1 is placed on the end surface 1a in the length direction. It is manufactured and provided so as to be integrated with the frame member 1.

  As the frame member 1, it is sufficient that at least the connection block 3 of the connection hardware 2 is provided, and the connection piece 4 may be retrofitted in the case of the detachable type. Alternatively, the frame member 1 may be provided with a connection hardware 2 in which the connection piece 4 is integrally connected to the connection block 3 in advance, whether it is welding connection or bolt connection.

  In the present embodiment, each connection block 3 is formed with a notch portion 5 facing the gathering portion Y. In addition, a penetrating portion 14 is formed in the gathering portion Y and the periphery thereof by surrounding the cutout portions 5 of the four connecting blocks 3 in the thickness direction of the connecting blocks 3, that is, toward the slope. The through portion 14 is used for attaching the connection piece 4 to the connection reference surface 6 on the lower surface of the connection block 3 and installing the anchor on the slope.

  Next, the operation of the frame member connecting hardware 2 and the frame member 1 according to the present embodiment will be described with reference to FIGS. FIG. 8A is a diagram showing a first step of connecting the frame member 1, and among the four frame members 1 to which the connecting hardware 2 is attached, the first frame member 1 is modulo. Install on the surface.

  FIG. 8B is a view showing a second step of connecting the frame member 1, and the adjacent connecting hardware 2 is rotated around the gathering portion Y clockwise with respect to the first frame member 1. The second frame member 1 is carried in so as to be arranged.

  FIG. 8C is a diagram showing a third step of connecting the frame member 1, and the connection piece 4 attached to the connection reference surface 6 on the lower surface of the connection block 3 of the first frame member 1. The other end portion is overlapped with the connection reference surface 6 of the connection block 3 of the second frame member 1, and is bolted with the connection bolt 9 from the lower side of the connection block 3. The frame member 1 is connected. Further, the third frame member 1 is carried into the second frame member 1 so that the adjacent connecting hardware 2 is arranged around the gathering portion Y in the clockwise direction.

  FIG. 9D is a diagram showing a fourth step of connecting the frame member 1, and the connection piece 4 attached to the connection reference surface 6 on the lower surface of the connection block 3 of the second frame member 1. The other end portion is overlapped with the connection reference surface 6 of the connection block 3 of the third frame member 1, and bolted with the connection bolt 9 from the lower side of the connection block 3. The frame member 1 is connected.

  Further, the fourth frame member 1 is carried into the third frame member 1 so that the adjacent connecting hardware 2 is arranged around the gathering portion Y in the clockwise direction. The fourth method frame member 1 may be slid into the assembly region Z or may be dropped into the assembly region Z from above the slope.

  FIG. 9 (E) is a diagram showing a fifth step of connecting the frame member 1, and shows the connection piece 4 attached to the connection reference surface 6 on the lower surface of the connection block 3 of the third frame member 1. The other end portion is overlapped with the connection reference surface 6 of the connection block 3 of the fourth frame member 1, and bolted with the connection bolt 9 from the lower side of the connection block 3. The frame member 1 is connected.

  Further, the other end of the connection piece 4 attached to the connection reference surface 6 on the upper surface of the connection block 3 of the fourth frame member 1 is connected to the connection reference surface 6 of the connection block 3 of the first frame member 1. And the fourth and first frame members 1 are connected by bolting with connecting bolts 9 from below the connecting block 3.

  As described above, the four connecting blocks 3 are joined to each other in an array that circulates around the gathering portion Y, whereby the four frame members 1 are centered in the longitudinal direction as shown in FIG. The axes X are connected to each other at a gathering region Z including a gathering part Y, that is, a grid-like intersection (intersection part).

  FIG. 10 shows a modification at the construction stage shown in FIG. That is, in FIG. 9, the connection piece 4 is detachable with respect to the connection block 3, and the connection piece 4 can be attached to any of the connection reference surfaces 6 on the upper surface and the lower surface of the connection block 3. FIG. 10 shows a case where the connecting piece 4 is integrally provided on the connecting block 3 by welding or the like.

  All the four connection pieces 4 are provided on the connection reference surface 6 on the lower surface of the connection block 3. In the first to third steps for connecting the frame member 1, the other end of the connection piece 4 attached to the connection reference surface 6 on the lower surface of the connection block 3 of the first frame member 1 is 2 The first frame member 1 is overlapped with the connection reference plane 6 of the connection block 3 of the first frame member 1 and is bolted with a connection bolt 9 from the lower side of the connection block 3 to connect the first and second frame members 1. To do.

  Further, the third frame member 1 is carried into the second frame member 1 so that the adjacent connecting hardware 2 is arranged around the gathering portion Y in the clockwise direction.

  Thereafter, FIG. 10A is a diagram showing a fourth step of connecting the frame member 1, and a connection piece attached to the connection reference surface 6 on the lower surface of the connection block 3 of the second frame member 1. The other end of 4 is overlapped with the connection reference surface 6 of the connection block 3 of the third frame member 1, and bolted with a connection bolt 9 from the lower side of the connection block 3. The eye frame member 1 is connected.

  Further, the fourth frame member 1 is carried into the third frame member 1 so that the adjacent connecting hardware 2 is arranged around the gathering portion Y in the clockwise direction. The fourth method frame member 1 is slid into the assembly area Z.

  FIG. 10B is a diagram showing a fifth step of connecting the frame member 1, and shows the connection piece 4 attached to the connection reference surface 6 on the lower surface of the connection block 3 of the third frame member 1. The other end portion is overlapped with the connection reference surface 6 of the connection block 3 of the fourth frame member 1, and bolted with the connection bolt 9 from the lower side of the connection block 3. The frame member 1 is connected.

  Further, the other end of the connection piece 4 attached to the connection reference surface 6 on the lower surface of the connection block 3 of the fourth method frame member 1 is connected to the connection reference surface 6 of the connection block 3 of the first method frame member 1. And the fourth and first frame members 1 are connected by bolting with connecting bolts 9 from below the connecting block 3.

  As described above, even when the connection piece 4 is provided in the connection block 3 in advance, the four connection blocks 3 are joined to each other in an array that circulates around the gathering portion Y. The members 1 are connected to each other at a gathering region Z including a gathering portion Y where their longitudinal central axes X gather, that is, a lattice-like intersection (intersection point).

  FIG. 11 shows a plurality of connection locations, and FIG. 12 shows the frame member 1 used in the connection mode of FIG. A large number of frame members 1 are connected to each other at a plurality of connection points, so that a slope-shaped reinforcing structure is constructed. Each frame member 1 is provided with a connecting hardware 2 on each of a pair of longitudinal end faces 1 a at both ends in the length direction, and the other frame members 1 are connected via the connecting hardware 2. One by one, it is connected to both ends in the length direction.

In the connection mode shown in FIG. 11, when focusing on the frame member 1 (i), the frame members 1 (ii) to (iv) are gathered at the ends Y in the longitudinal direction of the frame member 1. Circulating clockwise around. As shown in FIG. 12, the frame member 1 used in this case is connected to the pair of lengthwise end faces 1a with the connecting hardware 2 provided in the longitudinal direction center position of the frame member 1 (Q in the figure). The reference frame member 1 is provided point-symmetrically in plan view with respect to the center of the cross section of the frame member 1 .

  FIG. 13 shows a plurality of connection locations connected in another connection mode, and FIG. 14 shows the frame member 1 used in the connection mode of FIG.

  In the connection mode shown in FIG. 13, focusing on the frame member 1 (i), the frame member 1 (i) has a frame member 1 (i) at one end in the length direction (the upper end in the figure). While (ii) to (iv) are circulated and arranged counterclockwise around the gathering portion Y, at the other end in the length direction of the legal frame member 1 (i) (lower end portion in the figure), the legal frame The members 1 (ii) to (iv) are circularly arranged around the gathering portion Y in the clockwise direction.

  When attention is paid to the other frame member 1 (i ′) adjacent to the frame member 1 (i), the length direction one end portion (the upper end portion in the figure) of the frame member 1 (i ′) is concerned. The frame members 1 (ii) to (iv) are circularly arranged around the gathering portion Y in the clockwise direction, while the length direction other end of the frame member 1 (i ′) (the lower end portion in the figure). ), The frame members 1 (ii) to (iv) are circularly arranged counterclockwise around the gathering portion Y.

As shown in FIG. 14, the frame member 1 used in this case is connected to the pair of lengthwise end faces 1a by the connecting metal fittings 2 in the longitudinal direction center position of the frame member 1 (Q in the figure). The reference frame member 1 is symmetrical with respect to the cross section of the frame member 1 in plan view . In short, the attachment hardware 2 to the both ends in the length direction of the frame member 1 may be provided close to one side of the lengthwise central axis X of the frame member 1 with respect to the length direction end surface 1a. Alternatively, it may be provided on both sides of the longitudinal center axis X.

  The frame members 1 having the connection hardware 2 according to the present embodiment are arranged in four vertical and horizontal directions or diagonal four directions and are connected to each other at the gathering portion Y. The joining and installation of the member 1 may be performed by a conventionally known method. Accordingly, the frame member 1 only needs to be provided with the connecting hardware 2 on at least one of the pair of longitudinal end faces 1a in the length direction.

  The above-described hardware 2 for connecting a frame member according to the present embodiment includes four frame members 1 arranged in four vertical and horizontal directions or diagonally four along the plane on the slope. For connecting a frame member for joining the longitudinal direction end faces 1a of these four frame members 1 to each other in a collecting region Z including a collecting portion Y where the respective longitudinal center axes X meet. The metal frame 2 is formed in a quadrangular shape having the same outer dimensions, and is directed outwardly from the lengthwise end surface 1a of the frame member 1 along the longitudinal center axis X of each of the four frame members 1. Provided with four connecting blocks 3 for projecting and four connecting blocks 3 for sequentially connecting the four connecting blocks 3 around the collective portion Y. At each position of the longitudinal center axis X of the frame member 1, Four facing positions P at which adjacent edges of the pair 3 face each other are circulated around the gathering portion Y, circulated and arranged adjacent to each other around the gathering portion Y, and at least the upper surface of the four connecting blocks 3 or The connection reference surface 6 is formed by aligning the connection blocks 3 with each other on the lower surface, and the four connection pieces 4 are superimposed on the connection reference surface 6 for each of the four connection blocks 3. The connecting piece 4 is provided so as to protrude from the overlapping connecting block 3 toward another connecting block 3 adjacent around the gathering portion Y, and the connecting piece 4 is connected to the connecting block 3 provided with the connecting piece 4. With respect to the block 3, the connection block 3 passes through the reference connection surface 6 and the connection bolt 9 that fastens the connection piece 4 and the other connection block 3 is stressed around the collective portion Y. The frame member 1 is provided with the connecting hardware 2 and is connected to each other by a connecting piece 4 to form a connection structure. Therefore, unlike the easily deformable connecting pipe of Patent Document 1, it is possible to configure a rational connecting structure that exhibits stable stress transmission ability.

  Moreover, unlike the connection structure of patent document 2 and patent document 3, since the metal fittings 2 provided in each method frame member 1 are joined, it transmits and bears stress among all the method frame members 1 mutually. Thus, an efficient connection structure can be configured.

  As described above, the performance of the frame member 1 is determined by, for example, the number of reinforcing bars and the bar arrangement interval. On the other hand, the connection hardware 2 according to the present embodiment is constituted by the connection block 3 and the connection piece 4 independently of the structure of the frame member 1, so that the bar arrangement state of the frame member 1, etc. Regardless of the configuration of the frame member 1, the frame members 1 can be connected to each other. Unlike the member configurations used in Patent Documents 1 to 3, the frame members 1 have different performances. On the other hand, it can be shared.

  Since it is not the structure which handles and connects a reinforcing bar like patent document 1 and patent document 2, but the structure which handles and connects the block and piece-shaped connection block 3 and the connection piece 4, it is excellent in construction workability | operativity.

  In the present embodiment, the connection piece 4 is connected to the other connection block 3 adjacent to the connection block 3 provided with the connection piece 4 through the connection reference plane 6 and fastens the connection piece 4 and the other connection block 3. Since these connecting blocks 3 are connected to each other around the gathering portion Y by the bolts 9, that is, they are attached in the thickness direction of the connecting blocks 3, so that the frame members as in Patent Document 1 and Patent Document 2 are used. Since it is not the structure which connects 1 by sliding and pulling 1 etc., it is flexible in the connection of the frame member 1, Therefore Construction accuracy and high workability | operativity can be ensured, 4 connection hardware 2 mutual Can be firmly integrated in the gathering region Z, and the frame members 1 can be easily and reliably connected together.

  Therefore, in the frame member connecting hardware 2 and the frame member 1 according to the present embodiment, a robust connection structure can be formed, and stress transmission among all the frame members 1 can be appropriately ensured. It can be used to connect the frame members 1 with flexibility, accuracy, good workability, and can be used in common for various types of frame members 1 with different performance. Can do.

  15 and 16 show a case where the anchor 15 is driven into the gathering region Z and used together. In the illustrated example, an example is shown in which a rock bolt (natural ground reinforcing material) is used as the anchor 15, but the present invention is not limited to this, and a ground anchor or the like may be used.

  FIG. 15A is a plan view showing the vicinity of the gathering region Z, and FIG. 15B is a side sectional view. Fixing members 16 for fixing the anchors 15 are installed on the upper surfaces of the four connection blocks 3 aligned with each other, that is, on the connection reference surface 6 between the upper surfaces of the four connection blocks 3.

  The anchor 15 is driven into the slope using the penetrating portion 14 formed by the notch 5. Alternatively, the anchor 15 may be provided in advance. As described above, the through portion 14 formed by the notch 5 is not only used for the operation for inserting the attachment piece 4 into the connection reference surface 6 on the lower surface of the connection block 3 and attaching it, but also for installing the anchor 15. It is also available as a space.

  FIG. 16A is a plan view showing the periphery of the assembly region Z in another construction example, and FIG. 16B is a side sectional view thereof. FIG. 15 shows a case where a cap 17 is provided to cover the head of the anchor 15 in a state where the gathering area Z is opened upward on the slope, and FIG. 16 shows a filler 18 such as concrete or mortar in the gathering area Z. And the head of the anchor 15 is embedded.

  In any case, the fixing member 16 can be stably installed on the four connecting blocks 3 in the block form, and the load acting on the anchor 15 is applied to the four frame members 1 through the fixing member 16. Unlike the configurations of Patent Literature 1 to Patent Literature 3, the integrity of the anchor 15 and the frame member 1 can be improved, and deformation of the fixing member 16 can be suppressed. In addition, unlike Patent Document 3, the anchor 15 can be provided with good flexibility by the penetrating portion 14.

  In short, in the frame member connecting hardware 2 and the frame member 1 according to the present embodiment, even when the anchor 15 is used together, the anchor load is handled by itself and is equally transmitted to each frame member 1. Thus, the integrity of the anchor 15 and the frame member 1 can be reliably ensured. Further, as can be understood from the configuration of FIG. 16, the penetrating portion 14 can also be used when filling the filler 18 on the slope side below the connecting block 3.

  FIG. 17 shows various modified examples of the connection block 3. FIG. 17A shows a case where the notch 5 is not provided, and the adjacent edges of the four connecting blocks 3 are closely aligned with each other at the facing position P without any gap. Also in this case, the connection of the three connection blocks 3 by the connection piece 4 is performed on the connection reference plane 6 on the lower side of the connection block 3, and the last connection may be performed on the connection reference plane 6 on the upper side of the connection block 3.

  FIGS. 17B and 17C show a case where the frame is connected by a connection block 3 having a width dimension equal to or greater than a half width of the frame member 1. FIG. 17B is a plan view showing the vicinity of the gathering region Z, and FIG. 17C is a plan view showing a state in which the connecting block 3 is attached to the end surface 1a in the length direction of the modulus frame member 1. The connecting block 3 is attached to the frame member 1 so as to protrude laterally. Even such connection blocks 3 can be joined in accordance with the procedure shown in FIGS.

  FIG. 17D shows a case where, for example, the width dimension of the frame member 1 disposed in the vertical direction is different from the width dimension of the frame member 1 disposed in the horizontal direction. In such a case, as an application in the case shown in FIGS. 17B and 17C, the connection block 3 having a width dimension at least a half width or larger is used on the basis of the frame member 1 having the larger width dimension. To be connected. In the above example, all the connecting blocks 3 are square, but the connecting blocks 3 are not limited to a square shape, but may be a square shape.

  FIG. 17E shows a case where the frame members 1 having different width dimensions are connected as in FIG. 17D, and the larger one of the two edges arranged at the facing position P of the connecting block 3. An edge facing the width direction of the normal frame member 1 increases the width dimension of the connecting block 3, and an edge of the small width dimension facing the direction of the normal frame member 1 faces the width dimension of the connecting block 3. The planar outer shape of the connecting block 3 may be formed in a rectangular shape so as to be small.

  For example, if each of the edges of the connecting block 3 is matched to the half width of the frame member 1 with the width dimension being large and small, the connecting block 3 can be completely accommodated in the assembly region Z as shown in the figure.

  FIG. 18 shows a modification of the arrangement configuration of the connecting blocks 3. In the above embodiment, the four facing positions P where the adjacent edges of the four connecting blocks 3 face each other are the positions of the lengthwise central axes X of the four frame members 1, but instead, In the modified example, the four normal frame members 1 are set so as to sandwich the respective longitudinal center axis X positions.

  An example is shown in FIG. 18A. In short, the edges are not in close contact with each other but are opposed to each other with a gap. Specifically, the width dimension of the connection block 3 is set smaller than the width dimension of the connection block 3 described in the above embodiment. Other configurations and operational effects are the same as those in the above embodiment, and the connecting piece 4 joins adjacent connecting blocks 3 together as in the above embodiment.

  If comprised in this way, the flexibility of construction can be improved, such as being easy to absorb a construction error and filling the gathering area | region Z with the filler 18 easily.

  FIG. 18B corresponds to FIGS. 17B and 17C. FIG. 18C is an application of FIG. 18B, for example, the width dimension of the frame member 1 arranged in the vertical direction and the width dimension of the frame member 1 arranged in the horizontal direction. Are connected to each other in such a manner that a gap is not formed in the width direction of the large frame size frame 1 but a gap is formed in the width direction of the large frame frame frame 1. You may do it.

  FIG. 18D is an application similar to FIG. 18C, and a connecting block 3 formed in a square shape with a half width of the width of the method frame member 1 having a small width is formed into a method frame having a large width. A gap is formed in the width direction of the frame member 1 having a large width dimension.

  FIG. 19 shows a modified example of how the connecting blocks 3 are connected. FIG. 19A is a plan view of a state in which the connecting blocks 3 are connected, and FIG. 19B is an explanatory diagram of a connecting method therefor.

  The connection piece 4 is basically a connection reference surface 6 on the lower surface of the connection block 3, and the adjacent connection blocks 3 are joined to each other, but all the connection pieces 4 are provided so as to overlap the connection reference surface 6 on the lower surface of the connection block 3. Then, the position of the bolt holes 10 and 11 formed so as to be connected to the connecting piece 4 and the connecting block 3 to be connected in series, and the connecting bolt 9 and the connecting piece 4 interfere with the connecting piece 4 to be joined. In some cases, joining may not be possible. In particular, when the connecting piece 4 is integrated with the connecting block 3 by welding or the like, it may not be possible to join.

  If the connecting piece 4 is detachable, even if the connecting piece 4 is attached to the connecting reference surface 6 on the lower surface of the connecting block 3, by removing the connecting piece 4 and replacing it with the connecting reference surface on the upper surface, All the connecting blocks 3 can be joined together while avoiding interference.

  As described above, when the connection piece 4 is detachably attached to the connection block 3, the connection reference surface 6 on the lower surface of the connection block 3 is basically connected to the connection reference surface 6 while the connection reference surface 6 of the lower surface cannot be connected. If necessary, the connection block 3 can be joined with the connection piece 4 with high flexibility by using the connection reference surface 6 on the upper surface.

  FIG. 20 shows various examples of the installation positions of the connecting pieces 4. FIG. 20 shows the case where the connecting piece 4 is integrally joined to the connecting block 3 by welding or the like, and is a view looking up from the slope side. The connecting pieces 4 are basically arranged in a circulating manner around the gathering portion Y so as not to interfere with each other.

  In FIG. 20A, the connecting piece 4 is formed with a length exceeding the length of the connecting block 3, and the connecting bolt 9 near the edge facing the connecting block 3 that is an adjacent connecting object at the facing position P. Are joined together. Also in FIG. 20B, the connecting piece 4 is formed with a length exceeding the length of the connecting block 3, and is opposite to the edge facing the connecting block 3 which is the adjacent connecting object at the facing position P. It is joined by the connecting bolt 9 in the vicinity of the edge.

  In FIG. 20C, the connecting piece 4 is formed with a short length so as to straddle the edge facing at the facing position P, and the vicinity of the edge facing at the facing position P with respect to the connecting block 3 that is an adjacent connection target. Are joined by connecting bolts 9. Of course, the installation position of the connection piece 4 is not limited to these examples, and may be in other forms as long as the connection piece 4 fulfills its function.

  21 and 22 show modified examples of the bolt holes 10 and 11 through which the connecting bolt 9 is inserted. 21 is a plan view of the frame member 1 showing the connection hardware 2, FIG. 22A is a plan view showing a connection state when no construction error occurs, and FIG. 22B is a construction error. It is a top view which shows a connection state in case where this has arisen.

  The bolt holes 10 and 11 are formed in series in the connection piece 4 and the connection block 3 to be connected. In this modification, of the bolt holes 10 and 11, the bolt hole 10 provided in the connection piece 4 is formed in a long hole shape in the length direction of the frame member 1. Further, the bolt holes 11 provided in the connection block 3 are formed in a long hole shape in the width direction of the method frame member 1. By forming the bolt holes 10 and 11 in this way, it is possible to improve flexibility in the construction of the connecting hardware 2 that is circularly arranged around the gathering portion Y and connects the four frame members 1.

  Specifically, by making the bolt holes 10 and 11 into a long hole shape as described above, the frame member joined to the connection hardware 2 including the connection block 3 and the connection piece 4 from the vertical and horizontal sides or the diagonal sides. 1 can have a function of absorbing construction errors in alignment.

  In FIG. 22 (A), since no construction error has occurred, the connecting bolt 9 is located at the center of the elongated bolt holes 10 and 11, whereas the construction error occurs. ), It is understood that the connecting bolt 9 is offset in the elongated hole-shaped bolt holes 10 and 11 and absorbs the displacement. As a result, the connection configuration of the connection block 3 in which a gap is generated due to the construction error is the same as the example described in FIG.

  FIG. 23 is an explanatory diagram of a case where a displacement occurs in the thickness direction of the connecting block 3. In this case, a washer 19 may be provided in the gap between the connection piece 4 and the connection reference surface 6 in the connection block 3 to be connected.

  FIG. 24 is an explanatory diagram of a case where an inclination occurs in the thickness direction of the connection block 3. Also in this case, the taper washer 20 should just be provided in the clearance gap between the connection piece 4 and the connection reference plane 6 in the connection block 3 to be connected. In this case, the elongated hole-shaped bolt holes 10 and 11 can function effectively.

DESCRIPTION OF SYMBOLS 1 Leg frame member 1a Length direction end surface of a frame member 2 Leg frame member connection hardware 3 Connection block 4 Connection piece 5 Notch part 6 Connection reference surface 7 Mounting plate 9 Connection bolt 10, 11 Bolt hole 14 Through part 15 Anchor 16 Fixing member P Face-to-face position X Center axis of length direction of frame member Y Assembly part Z Assembly area

Claims (9)

Four normal frame members arranged in the vertical and horizontal four directions or diagonal four directions along the vertical plane on the slope are set in an aggregation region including an aggregate portion in which the central axes in the longitudinal direction of the respective modulus frame members are aggregated. Bonding the end faces in the length direction of the four frame members, and connecting the frame members to each other,
4 for each of the four above-mentioned frame members to project outward from the lengthwise end surface of the frame member along the longitudinal center axis thereof. Two connected blocks,
Four connecting blocks for sequentially connecting the four connecting blocks around the assembly part,
In the four connecting blocks, four facing positions where adjacent edges of the connecting block face each other at the central axis position in the length direction of the four frame members are circulated around the gathering portion. , And the circulation reference section is arranged next to each other around the assembly portion, and at least the upper surface or the lower surface of the four connection blocks are aligned with each other to form a connection reference surface.
Each of the four connection pieces overlaps the connection reference plane with respect to each of the four connection blocks, and from the overlapped connection block to another connection block adjacent to the periphery of the assembly portion. Protruding and
The connecting piece is connected to the other connecting block adjacent to the connecting block provided with the connecting block by a bolt that passes the connecting reference plane and fastens the connecting piece and the other connecting block. Join each other so that stress can be transmitted around the gathering part ,
The connecting piece is detachably bolted to the connecting block,
A bolt for connecting the bolts is in the shape of a long hole .   The four connection blocks are adjacent to the connection block with the length direction central axis positions of the four normal frame members sandwiched between the length direction central axis positions of the four normal frame members. Four facing positions where the edges face each other are circulated around the aggregated portion, are circulated and arranged adjacent to each other around the aggregated portion, and at least the upper or lower surfaces of the four linked blocks are connected to each other. The frame for connecting a frame member according to claim 1, wherein the connection reference plane is formed by aligning the two in a flush manner. The connecting block is formed with a notch facing the collecting portion, and the collecting portion and its periphery are surrounded by the notched portions of the four connecting blocks to form a penetrating portion. The hardware for connecting a frame member according to claim 1 or 2 . Four of the connecting block, the aligned upper surface flush over between these top each other, in any claim preceding claims fixing member, characterized in that it is installed for fixing the anchor The hardware for connecting the frame member described . The frame for connecting a frame member according to any one of claims 1 to 4 , wherein the connection block is provided with a mounting plate for mounting the connection block on a lengthwise end surface of the frame member. . The method according to claim 1 , wherein the connection block of the hardware for connecting a frame member according to claim 1 is provided on at least one of a pair of lengthwise end faces of the frame member. Frame member. A frame member for connecting a frame member according to claim 1 is provided on at least one of a pair of lengthwise end faces of the frame member. The hardware for connecting a frame member according to any one of claims 1 to 5 is provided on each of a pair of lengthwise end faces of the frame member, and the hardware for connecting the frame member is a length of the frame member. A frame member that is provided point-symmetrically in plan view with respect to the center of the cross section of the frame member at the center in the vertical direction . The hardware for connecting a frame member according to any one of claims 1 to 5 is provided on each of a pair of lengthwise end faces of the frame member, and the hardware for connecting the frame member is a length of the frame member. A method frame member characterized by being provided line-symmetrically in a plan view with respect to a cross section of the method frame member at a center position in the vertical direction .

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