JP2018145618A - Strut beam and corner brace connection structure, and connection piece for strut beam and corner brace - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a strut beam and corner brace connection structure and a connection piece for a strut beam and a corner brace capable of easily and firmly connecting an end part of the strut beam configured by connecting an end part of a column strut beam to a wale to each of end parts of corner braces with a connection piece for the strut beam and the corner brace.SOLUTION: An end part of a strut beam 2 configured by connecting an end part of a column strut beam 1 to a wale 6 and a corner brace 3 is connected with a strut beam and corner brace connection piece 4. The strut beam and corner brace connection piece 4 is provided with: a strut beam and corner brace connection piece body 4a arranged between an end part of a strut beam 2 and a column strut beam 1; an end part of a strut beam connection joint 4b and a column strut beam connection joint 4c arranged respectively at each end side of the end part of the strut beam and the column strut beam of the strut beam and corner brace connection piece body 4a; and a corner brace connection joint 4d arranged at both sides of the strut beam and corner brace connection piece body 4a.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an end cutting beam in which an end portion of a column (square steel pipe) cutting beam is joined to an abdomen through a cutting beam connection piece and a cutting beam connection structure and a cutting beam. Concerning fire hitting connection piece, the end beam of the column (square steel pipe) cutting beam is joined to the end beam and the hitting beam easily and firmly through the shot beam hitting connection piece. It is.

  H-beams are mainly used for the retaining members such as the uprights and the beams used in the retaining work, and column (square steel pipe) beams are also used depending on the situation.

  H-shaped steel has a strong axis and a weak axis for bending, and there is a difference in bending strength depending on the bending direction. Therefore, fire beams, shelf piles, and horizontal connecting materials are also used as reinforcing materials. As shown in FIG. 4, fire beams 22 and 22 are installed at the joint portion between the uplift 20 that supports the retaining wall and the cut beam 21, and both ends of each of the fire beams 22 and 22 protrude from the cut beam 21. To each bolt.

  Further, as shown in FIG. 5, a plurality of cut beams 21 are installed at intervals in the material axis direction of the uplift 20, and the cut beams 21, 21 are linked together by a connecting beam 23. It is also possible to install the fire struts 22 and 22 on the outside thereof. By erection in this way, it is possible to support the mountain retaining wall in a more stable state by increasing the flank span L of the upset 20.

  On the other hand, a column (square steel pipe) beam has no concept of a strong axis or a weak axis, so it is not a principle to reinforce it with a reinforcing material such as a struck beam. As shown in the figure, the abdomen 20 is joined to the abdomen 20 through a firing piece 24 formed in a triangular shape when seen in a plan view.

Japanese Patent Laid-Open No. 04-068116 JP 2002-081084 A JP-A-2015-175226

  However, H-shaped steel has a strong axis and a weak axis for bending, and there is a difference in bending strength depending on the bending direction, so it is necessary to pay attention to the direction when installing. Moreover, since many joining bolts are required for joining the members, there are problems such as requiring a great deal of labor for tightening.

  On the other hand, the column beam has a problem that the advantage of the column beam cannot be fully utilized because the firing span L cannot be sufficiently secured. In addition, reinforcement with a fire beam is performed if necessary, but it is not carried out so much because the joining bolt cannot be freely used like H-section steel.

  The present invention has been made in order to solve the above-described problems.The end beam of the column (square steel pipe) beam is joined to the edge beam and the fire beam, and the beam is connected to the fire beam via the beam-fired connection piece. It is an object of the present invention to provide a beam-fired connection structure and a beam-fired connection piece that can be joined easily and firmly.

The present invention is an invention of a cutting beam connection structure in which an end portion of a column beam is connected to the edge beam and an edge beam in which the end portion of the column beam is joined upright via a cutting beam connection piece. The fire connection piece is provided at the beam cross connection piece body installed between the end beam and the column beam, and at the end beam side and the column beam end of the beam connection piece body. End beam connection joint and column beam connection joint, and fire connection joints provided on both sides of the beam cross connection piece body, the beam cross connection piece body has a box-shaped cross section The scissor connection joint and the column scissor connection joint are provided in a bowl shape on the outer periphery of the end portion of the scissor fire connection piece body, and the fire connection joint is provided on the side of the scissor fire connection piece body. It is installed in a bowl shape protruding to the side of the main body And it is characterized in that it is.

  Cut beam fired connection piece body can be formed from square steel pipes with the same diameter and shape as end cut beams and column cut beams, and also from square steel pipes with larger diameters than column cut beams and end cut beams By doing so, the strength can be increased.

  The end beam connection joint and the column beam connection joint shall be provided by attaching the plate to the end of the beam cross connection piece body by protruding it like a hook in the direction perpendicular to the axis of the beam cross connection piece body. If necessary, it may be provided continuously in the circumferential direction of the beam-fired hitting connection piece body.

  The fire-splicing joint has a strip-like plate (long plate) on the upper and lower end faces of the beam-fired hitting piece body, and the edge of the strip-like plate protrudes in a bowl shape in the direction perpendicular to the side of the beam-fired hitting piece body. It can be provided by a method such as mounting in a state where it is made to be attached, and it can be freely adapted to the size of the fire beam (fire connection piece) by providing it continuously in the axial direction of the cut beam fire connection piece body. . Each connecting joint is previously provided with a bolt hole.

  In the present invention, a column beam connection joint and an end beam connection joint are respectively provided at the column beam side and the end beam end of the connection piece body of the beam cutting connection piece, and these connection joints. Is protruded in a hook shape in the direction perpendicular to the axis of the connection piece body and is provided continuously in the circumferential direction of the connection piece body.

  At the ends of the column beam and end beam, connection joints project in a bowl shape in the direction perpendicular to the axis of the column beam and end beam, and are provided continuously in the circumferential direction of each beam. It has been.

  Furthermore, a fire hitting connection joint is provided on both sides of the beam-fired hitting connection piece body, and the fire hitting connection joint is formed on the side portion of the connection piece main body in a hook shape protruding to the side of the connection piece main body.

  With the above configuration, according to the present invention, the end of the column (square steel pipe) beam can be easily and firmly connected to the end beam and the fire beam joined by raising the end of the beam through the beam-fired connection piece. Can be joined.

  That is, the connection plates provided on the connection piece main body, the end cutting beam, and the column cutting beam of the cut beam fired connection piece are provided as described above, so that the connection plate is omitted, and a plurality of connection bolts are provided. The column (square steel pipe) can be easily and firmly joined to the end beam and the fire beam, which are joined with the end of the column beam, and the number of bolts to be joined. Can be reduced.

FIG. 1 (a) is a plan view, and FIG. 1 (b) is a plan view, FIG. 1 (b) is a plan view, and FIG. 1 (b) is a plan view. FIG. It is a perspective view of a stab beam hitting connection piece. FIG. 3A illustrates another embodiment of the present invention, and FIG. 3A is a plan view of a beam cutting connection piece, a column cutting beam, an end cutting beam, and a heating beam joined by the beam cutting connection piece. FIG. 3 (b) is a view taken along the arrow line in FIG. 3 (a). It is a top view which shows the conventional installation method of a cut beam and a hitting beam. It is a top view which shows the conventional installation method of a cut beam and a hitting beam. It is a top view which shows the conventional installation method of a column beam.

  FIGS. 1 (a), (b) and FIG. 2 illustrate an embodiment of the present invention. In the figure, an end beam 2 and left and right fire beams 3, 3 at the end of a column beam 1 are shown. Are connected to each other by a plurality of connecting bolts 5 through the beam-fired connection piece 4. The ends 6 of the end cutting beam 2 and the left and right fire striking beams 3 and 3 are respectively connected to the side of the protuberance 6 by a plurality of joining bolts 5 via length adjusting members 7 and fire receiving pieces 8. It is bolted.

  The column beam 1 is formed of a square steel pipe, and a connection joint 1 a is continuously formed in a bowl shape in the circumferential direction of the column beam 1 on the outer periphery of the end of the column beam 1.

  The end cutting beam 2 is formed of a square steel pipe having the same diameter and the same cross-sectional shape as the column cutting beam 1, and a connection joint 2 a is connected to the end of the end cutting beam 2 on the cutting beam connecting piece 4 side. 2 are formed continuously in a bowl shape in the circumferential direction. Further, the fire beam 3 is formed of H-shaped steel, and the end portion of the fire beam 3 on the column beam 1 side is connected to the side of the beam beam connection piece 4 via a flame connection piece 9 by a plurality of joining bolts 5. It is bolted.

  The struck connection piece 4 includes a connection piece body (hereinafter referred to as “connection piece body”) 4a made of a square steel pipe having the same diameter and the same cross-sectional shape as the column cutting beam 1 and the end cutting beam 2, and a column of the connection piece body 4a. A column beam connection joint 4b and an end beam connection joint 4c formed at the end on the cut beam 1 side and the end on the end beam 2 side are provided. Further, fire-fitting joints 4d and 4d are provided on both sides facing the fire-fitting connection piece 9.

  The column beam connecting joint 4b and the end beam connecting joint 4c are continuously formed in a bowl shape in the circumferential direction of the connecting piece body 4a at the end of the connecting piece body 4a.

  In addition, the fire hitting connection joints 4d and 4d are formed substantially horizontally in the direction perpendicular to the axis of the connection piece body 4a at the upper and lower ends of both sides of the connection piece body 4a and continuously formed in the axial direction of the connection piece body 4a. ing.

  In addition, the fire-joint joints 4d and 4d are fixed to the upper and lower ends of the connection piece body 4a by welding with a belt-like plate in a state in which the edge of the belt-like plate protrudes from the side of the connection piece body 4a by a predetermined length. It is formed by a method (see FIG. 2).

  Then, the column beam connecting joint 4b and the column beam 1 connecting joint 1a, the end beam connecting joint 4b and the end beam 2 connecting joint 2a are brought into contact with each other and bolted by a plurality of connecting bolts 5. As a result, the column beam 1 and the end beam 2 are joined to each other via the column beam connection piece 4.

  Further, the end portions of the left and right fire connection pieces 9 and 9 are respectively inserted between the upper and lower fire connection joints 4d and 4d, and the upper and lower fire connection joints 4d and 4d and the fire connection piece 9 are bolted by a plurality of joining bolts 5. By doing so, the left and right fired beams 3 and 3 are joined to each other via the cut beam fired connection piece 4, and the left and right fired beams 3 and 3, the column beam 1 and the end beam 2 are connected via the cut beam fired connection piece 4. Are bolted together.

  When constructing these retaining members, first, the end-cutting beam 2, the left and right fired beams 3, 3 and the beam-fired hitting connection piece 4 are grounded on the ground. Next, the end-cut beam 2, the left and right fire beams 3, 3 and the beam-fired connection piece 4 are lifted by heavy machinery. Next, the end raised beam 2 and the left and right fired beams 3 and 3 are erected on the side of the flank 6 and bolted to the side of 5 via the length adjusting member 7 and the struck receiving piece 8, respectively. Then, the end portion of the column beam 1 is joined to the beam-fired connection piece 4.

  By erection in this way, the end of the column (square steel pipe) beam 1 is erected and joined to the edge beam 2 and the fire beam 3, 3 joined to the fire beam 3, 3 via the beam-fired connection piece 4. And can be joined firmly.

  FIGS. 3 (a) and 3 (b) show another embodiment of the present invention, and shows a beam-to-fire-fired joint structure configured so that the flank 6 supporting the retaining wall can be supported by a longer fire span L. It is illustrated.

  To explain, the end beam 2 and the fire beam 3 are respectively connected to the end portions of the respective cut beams 1 and 1 installed at intervals in the material axis direction of the erection 6 via the cut beam fire connection piece 4. Bolts are joined by a plurality of joining bolts 5.

  The fire striking beam 3 is constructed outside each end cutting beam 2. In addition, a connecting plate 10 is installed between adjacent beam-fired hitting connection pieces 4 and 4, and adjacent column cutting beams 1 and 1 are bolted to each other via the connecting plate 10.

  Further, the connecting plate 10 is installed in two stages, upper and lower, between the beam-fired connection pieces 4, 4, and both ends of each connection plate 10 are connected to the fire-bonded joints 4 d, 4 d of the beam-fired connection piece 4. 5 is bolted. Other configurations are substantially the same as those described in the embodiment of FIGS.

  According to this embodiment, the firing span L can be made longer than that of the embodiment of FIG. 1, and the erection 6 supporting the retaining wall can be supported in a more stable state. Further, the firing span L can be further increased by increasing the number of column beams 1 to three or more.

  The present invention is to easily and firmly join the end beam of the column (square steel pipe) beam and the end beam of the fire beam connected to each other through the cut beam connection piece. Can do.

1 Column beam 2 End beam 3 Fire beam 4 Beam-fire connection piece
4a Connection piece body (cut beam fire connection piece body)
4b End beam joint
4c Column beam connection joint
4d Fire-fitting joint 5 Joint bolt 6 Raising 7 Length adjusting material 8 Fire-receiving piece 9 Fire-fitting connection piece
10 Connecting plate

Claims (4)

  In a beam cutting connection structure in which an end of a column beam is connected to an edge beam and a fire beam in which the edge of the column beam is joined upright via a beam cutting connection piece, the beam cutting connection piece has the end. A beam-cutting connection piece main body installed between the partial beam and the column beam, and end cutting beams provided respectively at the end beam side and the column beam side end of the beam cutting connection piece body A connection joint, a column beam connection joint, and a fire connection joint provided on both sides of the beam cross connection piece body, the beam fire connection piece body is formed in a box-shaped cross-section, The connection joint and the column beam connection joint are provided in a bowl shape on the outer periphery of the end portion of the beam-fired connection piece body, and the flame connection joint is provided on the side of the beam-fired connection piece body. Projecting to the side of the Setsuhari angle brace connection structure and butterflies.   2. The beam cutting connection structure according to claim 1, wherein the beam cutting connection piece main body is formed of a square steel pipe having the same diameter and the same shape as the end cutting beam and the column cutting beam. Connection structure.   3. A struck connection structure according to claim 1, wherein the struck connection joint is formed continuously in the axial direction of the stake connection piece.   A beam-fired hitting connection piece installed between the end beam and the column beam in the beam-fired hitting connection piece for joining the edge beam and the hitting beam joined to the edge beam of the column beam. Piece main body, end beam connecting joint and column beam connecting joint provided at the end beam side and column beam end of the piece main body, respectively, and the beam cutting connection A cross-cut connection piece body formed in a box-shaped cross-section, and the cross-beam connection joint and the column cross-beam connection joint are the cross-beam fire connection pieces. It is provided in the shape of a bowl on the outer periphery of the end of the main body, and the fire hitting joint is provided on the side of the beam hitting connection piece main body so as to protrude to the side of the beam hitting hitting connection piece main body. Cut beam fired connection piece.

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