JP2015218479A - Brace for temporary structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a brace for a temporary structure that further enhances the strength of temporary structures.SOLUTION: A brace 4 of the present invention is spanned between a horizontal member 3 installed horizontally between two adjacent columns 1, and a column 1 of the two columns 1, diagonally with upper and lower tilt angles. One of the two ends of the brace is connected rotatably in the vertical direction to the horizontal member 3, with a pin 8 extending in the horizontal direction orthogonal to the longitudinal direction of the horizontal member 3, and the other end is connected to the column 1 of the two columns 1 with connecting means. An angular change prevention member 13 is installed on an end of a brace body 15 on the same side with the one of the two ends of the brace, the angular change prevention member having a facing part 32 that faces the horizontal member 3 from above or below and blocking changes of angles θ1, θ2 between the horizontal member 3 and the brace body 15 around the pin 8, by having the facing part 32 come in contact with the horizontal member 3.

Description

  The present invention relates to a brace disposed obliquely on a temporary structure constructed at a construction work site, a civil engineering work site, or the like, and can be used for a temporary structure such as a temporary scaffolding or a support work.

  In a temporary structure such as a temporary scaffolding or a supporting work constructed at a construction work site or a civil engineering work site, braces are disposed obliquely in order to secure and improve the strength of the temporary structure. The brace shown in the following Patent Document 1 has a vertical inclination angle between a horizontal member horizontally installed between two adjacent struts and one of these struts. It is a brace for a temporary structure that is bridged diagonally, and one of the upper and lower ends of this brace is pivoted up and down to the horizontal member by a pin extending in the horizontal direction perpendicular to the length direction of the horizontal member. It is connected freely, and the other end is connected to the one column by connecting means.

JP 2014-31633 A (FIG. 7)

  According to such a brace for a temporary construction, one of the upper and lower end portions is connected to the horizontal member by a pin extending in the horizontal direction perpendicular to the length direction of the horizontal member so as to be rotatable up and down. When a lateral load is applied to the temporary structure, the angle formed by the horizontal member and the brace changes around the pin. For this reason, it is required to further improve the strength of the temporary structure.

An object of the present invention is to provide a brace for a temporary structure that can further improve the strength of the temporary structure.

  The brace for a temporary structure according to the present invention is slanted with a vertical inclination angle between a horizontal member horizontally installed between two adjacent struts and one of the two struts. A brace for a temporary structure that is bridged between the upper and lower ends, one end of which is connected to the horizontal member by a pin extending in a horizontal direction perpendicular to the length direction of the horizontal member. In the brace for a temporary structure in which the other end is connected to the one strut by connecting means, the end of the brace body that is on the same side as the one end faces the horizontal member vertically. An angle change prevention member is provided for preventing the angle formed by the horizontal member and the brace body from changing around the pin when the facing portion abuts against the horizontal member. It is characterized by being It is intended to.

  The brace for temporary construction has a facing portion facing the horizontal member up and down at the end of the brace main body on the same side as the one end, and the facing portion contacts the horizontal member. Is provided with an angle change prevention member for preventing the angle between the horizontal member and the brace body from changing around the pin, so that when a lateral load or the like acts on the temporary structure, the angle change prevention member The contact portion of the horizontal member makes contact with the horizontal member, and this contact can prevent the angle between the horizontal member and the brace body from changing around the pin. The strength of the temporary structure can be further improved.

  In the present invention described above, the pin may be provided on the angle change prevention member or on a horizontal member.

  In addition, the angle change prevention member has a facing portion that faces the horizontal member up and down, and the angle between the horizontal member and the brace body changes around the pin when the facing portion abuts against the horizontal member. Any shape and structure may be used as long as they can be prevented, and an example of the angle change prevention member is two pieces arranged in parallel in a direction perpendicular to the length direction of the horizontal member. The horizontal material is inserted between these wall portions.

  According to this, when the brace for temporary structure according to the present invention is connected to the horizontal member by the pin, the horizontal member is inserted between the two wall portions, so that the temporary structure brace is in the length direction of the horizontal member. Can be prevented by the two wall portions.

  In addition, in order to make it possible to insert a horizontal member between these two wall portions when the shape of at least one of the wall portions is a front view in which the length direction of the horizontal member is the left-right direction. It is good also as a triangle with which the oblique side part inclined up and down is provided, or a substantially triangular shape.

  According to this, since one wall part is the shape cut | disconnected diagonally in the oblique side part, in order to connect the brace | blade for temporary constructions and a horizontal material with a pin, it is horizontal between two wall parts. The operation of inserting the material can be easily performed by this hypotenuse.

  The end of the brace body on which the angle change prevention member is provided may be the upper end or the lower end. When the angle change prevention member is provided on the lower end of the brace body, the triangle or the substantially triangular shape is reversed. It becomes a triangle or an inverted approximate triangle.

  Further, when the angle change prevention member has such a shape and structure, and the end portion of the brace body provided with the angle change prevention member is the upper end portion of the brace body, the angle change prevention member The bottom part which connects the lower ends of the two wall parts may be provided, the facing part may be the bottom part, and the upper end part of the brace body may be coupled to the lower surface of the bottom part.

  According to this, the angle change prevention member is provided at the upper end portion of the brace body, and the angle formed by the horizontal material and the brace body changes around the pin by the bottom portion of the angle change prevention member coming into contact with the horizontal material. I can prevent it.

  In addition, as described above, the angle change prevention member has two wall portions arranged in parallel in a direction orthogonal to the length direction of the horizontal member, and the horizontal portion is interposed between these wall portions. When a material is to be inserted, the base end portion of the pin is coupled to one wall portion of the two wall portions, and the pin may be extended in the interval direction of the two wall portions. Good.

  According to this, since the pin is provided on the angle change prevention member, the pin can be provided on the temporary structure brace according to the present invention by performing the operation of coupling the angle change prevention member to the brace body. .

  In the present invention described above, the angle change prevention member may be formed by casting, may be formed by forging, or may be formed by bending a plate material.

  When the angle change prevention member is formed by bending a plate material, that is, when the angle change prevention member is a bent product of the plate material, a large number of angle change prevention members can be manufactured at low cost.

  Furthermore, of the upper and lower ends of the brace for a temporary construction according to the present invention, the connecting means for connecting the other end opposite to the one end described above and the one strut described above, For example, it may be a pin or a lock member such as a wedge-shaped member.

  Further, the brace for a temporary structure according to the present invention can be used for an arbitrary temporary structure, and this temporary structure may be a temporary scaffold constructed at, for example, a construction work site, a civil engineering work site, a demolition work site, It may be a support work, or it may be a temporary auditorium built at a sports field.

  According to the present invention, an effect that the strength of the temporary structure can be further improved can be obtained.

FIG. 1 is a front view of a support constructed using a temporary structure brace according to an embodiment of the present invention. FIG. 2 is an enlarged front view of a part of the column shown in FIG. 3 is a cross-sectional view taken along line S3-S3 of FIG. FIG. 4 is an enlarged front view of a connecting portion between the horizontal member and the temporary structure brace shown in FIG. 1. FIG. 5 is an enlarged front view of a connection portion between the support column shown in FIG. 1 and the brace for temporary construction. FIG. 6 is a perspective view showing the entire angle change prevention member provided at the upper end of the temporary construction brace. FIG. 7 is a plan view of the angle change prevention member. FIG. 8 is a bottom view of the angle change prevention member.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated based on drawing. FIG. 1 shows a front view of a support constructed using a temporary structure brace according to an embodiment of the present invention. This support structure, which is a temporary structure, is constructed including the support column 1, the jack base 2, the horizontal member 3, and the temporary structure brace 4 according to the present embodiment. The support column 1 has a plurality 10 and 11 connected vertically, and this connection is achieved by fitting the upper support column 11 to the outer periphery of the small-diameter bar portion 10A provided at the upper end of the lower support column 10. The lower support column 10 is erected on the ground 5 of the work site where the support work is constructed with the height position adjusted by the jack base 2.

  FIG. 1 shows left and right columns 1 that are installed with the jack base 2 adjusted in height in this way.

  FIG. 2 is an enlarged view of the connecting portion 6 provided in each support column 1, and FIG. 3 is a cross-sectional view taken along line S3-S3 of FIG. This connecting portion 6 is formed by joining a pocket member 7 formed in a U shape in plan view by bending a plate material by welding to the column 1 with the opening side of the internal space portion 7A facing the column 1, Four pocket members 7 are provided on the outer periphery of the column 1 at intervals of 90 degrees. As shown in FIG. 1, the connecting portion 6 composed of the four pocket members 7 has a plurality of left and right struts 1 spaced apart in the length direction of the struts 1. Is provided.

  FIG. 4 shows an enlarged connection portion between the support column 1 and the horizontal member 3. The main body 3A of the horizontal member 3 whose length direction is the left-right direction is formed of a pipe material, and a wedge-shaped member 3B is bonded to both ends in the length direction of the main body 3A by welding. Of the pocket members 7 constituting the connecting portion 6 provided at the same height position of the left and right support columns 1, the wedge-shaped member 3 </ b> B is placed in the space portion 7 </ b> A inside the pocket members 7 facing each other in the left-right direction. The horizontal member 3 is installed horizontally on the left and right support columns 1 and the left and right support columns 1 are connected to each other with a predetermined interval.

  Moreover, although not shown in FIG. 1, the pillar 1 in which the height position is adjusted by the jack base 2 and a plurality of pieces 10 and 11 are connected vertically is also arranged in the front and back direction of FIG. Among the pocket members 7 constituting the connecting portion 6 provided at the same height position of the support column 1, the horizontal member 7 </ b> A is disposed in the space portion 7 </ b> A inside the pocket members 7 facing each other in the front-back direction of FIG. 1. 1 are driven and fitted from above, and by this horizontal member, the columns 1 arranged in the front and back direction in FIG. 1 are also connected with a predetermined interval.

  As described above, the support according to the present embodiment includes the support columns 1 arranged in the left-right direction and the front-back direction of FIG. 1 and the horizontal members 3 installed between these support columns 1. In order to improve the strength of the support against lateral load or the like, the support construction brace 4 according to the present embodiment is assembled to the support. The brace 4 is bridged obliquely with a vertical inclination angle between the horizontal member 3 and the support column 1 and the two braces 4 are arranged in a cross shape. The brace 4 whose upper end is connected to the horizontal member 3 at a location close to the left column 1 is connected to the right column 1 at the lower end of the left and right columns 1. Among them, the brace 4 whose upper end portion is connected to the horizontal member 3 at a location close to the right column 1 is connected to the left column 1 among the left and right columns 1.

  4 also shows an enlarged connection portion between the horizontal member 3 and the brace 4, and FIG. 5 shows an enlarged connection portion between the column 1 and the brace 4. As shown in FIG.

  As shown in FIG. 4, the horizontal member 3 and the brace 4 are connected by inserting a pin 8 provided at the upper end of the brace 4 into a hole 3 </ b> C formed in the horizontal member 3. The pin 8 extends in the horizontal direction perpendicular to the length direction of the horizontal member 3. Further, as shown in FIG. 5, the connection between the support column 1 and the brace 4 is performed by connecting the connection portion 6 provided on the support column 1, the connection member 9 provided on the lower end portion of the brace 4, and these connection portions. 6 and a connecting member 20 including a locking member 14 for connecting the connecting member 9 to each other.

  Next, the connecting means 20 will be described with reference to FIG. A brace body 15 of the brace 4 is formed of a pipe material, and a connecting member 9 is coupled to a lower end portion of the brace body 15. Since this connecting member 9 can be fitted from the outside to one pocket member 7 forming a part of the connecting portion 6 in the middle in the vertical direction, the connecting member 9 is shown in FIG. As shown in FIG. 2, a U-shaped hollow portion 9A is formed with an opening toward the support column 1 so that the pocket member 7 can be fitted into the pocket member 7 in a front view in which the horizontal direction of the horizontal member 3 is the left-right direction. It has become a thing. Further, since the connecting member 9 is a folded product of a plate material, the connecting member 9 has two side portions 9B that are spaced apart from each other in the front and back directions in FIG. 5, and the pocket member 7 is fitted in the recessed portion 9A. After joining, the lock member 14 is inserted between the two side portions 9B from above, and the lock member 14 is also inserted into the space portion 7A inside the pocket member 7 from above, so that the lower end portion of the brace 4 And the support column 1 are connected by a connecting means 20 including a connecting portion 6, a connecting member 9, and a lock member 14.

  The lock member 14 is provided with a stop portion 14 </ b> A that engages with the upper surface of the connecting member 9, and a pin 12 such as a spring pin is press-fitted into the lower portion of the lock member 14 protruding from the lower surface of the connecting member 9. Since the hole to be formed is formed, the stop member 14A and the pin 12 prevent the lock member 14 from coming out of the pocket member 7 and the connecting member 9.

  The connecting member 9 may be coupled to the lower end portion of the brace body 15 by fixing by welding or the like, or may be performed by a pin such as a bolt so as to be vertically rotatable.

  Further, the connecting means for connecting the lower end portion of the brace 4 and the support column 1 is not limited to the above, and for example, like the connection structure of the support column 1 and the horizontal member 3, the lower end portion of the brace body has a wedge shape. A member may be provided, and the wedge-shaped member may be driven into the space portion 7A inside the pocket member 7 of the column 1 to connect the lower end of the brace 4 and the column 1 or the lower end of the brace 4 The lower end portion of the brace 4 and the support column 1 may be connected by providing a pin on one of the part and the support column 1 and forming a hole into which the pin is inserted on the other.

  Next, the structure of the upper end portion of the brace 4 will be described with reference to FIGS. 4 and 6 to 8. As shown in FIG. 4, the upper end portion of the brace 4 is configured by connecting an angle change prevention member 13 to an upper end portion of a brace body 15 formed of a pipe material. The overall shape is shown in FIG. The angle change prevention member 13 is a bent product formed by bending a punched plate material, and the angle change prevention member 13 is arranged in parallel at intervals as shown in FIG. The two wall parts 30 and 31 which were made and the bottom part 32 which has connected the lower ends of these wall parts 30 and 31 are provided. The two wall portions 30, 31 are spaced from each other in the direction perpendicular to the length direction of the horizontal member 3 when the upper end of the brace 4 is connected to the horizontal member 3 by the pin 8 shown in FIG. The upper end of the brace body 15 is joined to the lower surface of the bottom 32 by welding.

  In the angle change prevention member 13 according to the present embodiment, the rear end portions 30A and 31A of the two wall portions 30 and 31 and the rear end portion 32A of the bottom portion 32 in the length direction of the horizontal member 3 are At the same position in the length direction. Further, of the two wall portions 30, 31, the length in the length direction of the horizontal member 3 for one wall portion 30 is longer than the length in the length direction of the horizontal member 3 for the other wall portion 31. For this reason, the front end portion 30B of one wall portion 30 is in a position retracted from the front end portion 31B of the other wall portion 31 in the length direction of the horizontal member 3, and the front end portion of the bottom portion 32 32B is at the same position in the length direction of the front end portion 30B of the one wall portion 30 and the horizontal member 3.

  Further, as shown in FIG. 4, when the upper end of the brace 4 is connected to the horizontal member 3 by the pin 8, the bottom view is shown in FIG. 7 which is a plan view of the angle change preventing member 13 and the angle change preventing member 13. As shown in FIG. 8, the horizontal member 3 is inserted between the two wall portions 13 </ b> A and 13 </ b> B. As shown in FIG. 6, this insertion can be performed. In addition, the one wall portion 30 is obliquely cut by reaching from the upper surface 30C side to the bottom portion 32 side of the wall portion 30 as it extends from the rear end portion 30A side of the wall portion 30 to the front end portion 30B side. A hypotenuse 33 is provided. Therefore, as shown in FIG. 4, the shape of the wall portion 30 is a triangle provided with an oblique side portion 33 inclined upward and downward in a front view in which the length direction of the horizontal member 3 is the left-right direction. Or it is a substantially triangular shape, more precisely a right triangle or a substantially right triangle.

  Then, the front end portion 31B reaches the front in the length direction of the horizontal member 3 relative to the front end portion 30B of the one wall portion 30. A portion 31C is formed, and the front portion 31C is provided with a hole into which the base end portion of the pin 8 is inserted. The base end portion of the pin 8 inserted into the hole is welded to the front portion 31C. And the pin 8 to which the coupling is performed extends in the direction of the interval between the two wall portions 30 and 31.

  For this reason, in this embodiment, the pin 8 for connecting the brace 4 to the horizontal member 3 is provided on the angle change prevention member 13 which is part of the brace 4 by being coupled to the brace body 15. Yes.

  Next, an operation procedure for the brace 4 will be described.

  The work for connecting the upper end of the brace 4 to the horizontal member 3 laid between the left and right columns 1 by the pins 8 is performed by connecting the lower end of the brace 4 to the column 1 by the connecting means 20 described in FIG. In order to connect the upper end portion of the brace 4 to the horizontal member 3 by the pin 8 before the connecting operation is performed, first, an operator who holds the brace 4 needs to use the wall portion of the angle change prevention member 13. The brace 4 is in an upright or substantially upright posture so that the oblique side portion 33 of 30 is parallel or substantially parallel to the horizontal member 3, and the position of the pin 8 and the pin 8 is formed in the horizontal member 3 for insertion. The position of the hole 3 </ b> C is made to match or substantially match, and then the hypotenuse 33 is passed under the horizontal member 3, so that the angle change blocking member 13 is positioned between the two walls 30 and 31. Place the horizontal member 3 and insert the pin 8 into the hole 3C. . Thereafter, the operator rotates the brace 4 upward about the pin 8 to bring the lower end of the brace 4 closer to one of the left and right supports 1, and then the lower end of the brace 4. The part is connected to the support column 1 by the connecting means 20 described above.

  In this manner, the work of obliquely bridging the brace 4 between the horizontal member 3 and one of the left and right columns 1 is performed for each of the two braces 4 arranged in a cross shape. Since the brace body 15 of these braces 4 intersects in the center in the longitudinal direction, in order to make this intersection without interfering with each other, as shown in FIG. A length portion including a central portion in the length direction of the formed brace body 15 is a flat portion 15A by crushing. Since the two braces 4 are arranged in a cross shape, as can be seen from FIG. 4, these braces 4 are composed of the horizontal member 3 and the left and right support columns 1 with the front and back directions in FIG. It is bridged between one of the columns 1.

  As described above, when each brace 4 is bridged obliquely with a vertical inclination angle between the horizontal member 3 and one of the left and right struts 1, the two angle change prevention members 13 are arranged. Since the horizontal member 3 is inserted between the wall portions 30 and 31, the brace 4 moves in the horizontal direction perpendicular to the length direction of the horizontal member 3, so that the pin 8 is detached from the horizontal member 3. Can be prevented by the two wall portions 30 and 31.

  Further, when the brace 4 is bridged obliquely with a vertical inclination angle between the horizontal member 3 and one of the left and right columns 1, the upper surface of the bottom portion 32 of the angle change prevention member 13 is the horizontal member. 3, the bottom portion 32 is a facing portion facing the horizontal member 3.

  In FIG. 4, when a lateral load F1 from the left side is applied to the support constructed by the support 1 and the like, the brace body 15 and the horizontal member 3 of the right brace 4 centering on the pin 8 out of the left and right braces 4. However, this deformation is caused by the contact between the upper surface of the bottom 32 of the angle change prevention member 13 of the brace 4 on the right side and the lower surface of the horizontal member 3. In other words, the bottom portion 32 that has been the facing portion of the angle change prevention member 13 comes into contact with the horizontal member 3, thereby preventing the decrease in the angle θ <b> 1, and thus preventing deformation of the support work. Thus, this support work has a large strength against the lateral load F1.

  In FIG. 4, when a lateral load F2 from the right side acts on the support, the angle θ2 formed by the brace body 15 of the left brace 4 and the horizontal member 3 around the pin 8 out of the left and right braces 4 is The support is going to be deformed so as to decrease, but this deformation also reduces the angle θ2 due to the contact between the upper surface of the bottom 32 of the angle change prevention member 13 of the left brace 4 and the lower surface of the horizontal member 3. Therefore, the deformation of the support work is also prevented, and this support work also has a high strength against the lateral load F2.

  Since the two left and right braces 4 shown in FIG. 4 have the same dimensions, the same shape, and the same structure, θ1 and θ2 are angles of the same size.

  In the angle change prevention member 13 according to the present embodiment, since one of the two wall portions 30 and 31 is provided with the oblique side portion 33 inclined upward and downward, the oblique side portion 33 is provided. Thus, the horizontal member 3 can be easily inserted between the two wall portions 13A and 13B, and the work for connecting the upper end portion of the brace 4 and the horizontal member 3 by the pin 8 can be easily performed.

  Further, according to the present embodiment, the pin 8 that is a member for connecting the upper end portion of the brace 4 and the horizontal member 3 is attached to the angle change prevention member 13. When the upper end of the brace body 15 is joined by welding, the pin 8 is also attached to the brace 4 at the same time, and this pin attaching operation can be easily performed.

  Furthermore, since the angle change prevention member 13 according to the present embodiment is a bent product formed by bending a plate material, a large number of angle change prevention members 13 can be manufactured at low cost.

  The present invention can be used, for example, for temporary structures such as temporary scaffolds and support structures constructed at construction work sites and civil engineering work sites.

DESCRIPTION OF SYMBOLS 1,10,11 Support | pillar 3 Horizontal material 4 Brace 6 Connection part provided in support | pillar 7 Pocket member which comprises connection part 8 Pin 9 Connection member provided in brace 13 Angle change prevention member 14 Lock member 15 Brace body 20 Connection Means 30,31 Wall part 32 Bottom part which is facing part 33 Slanted side part F1, F2 Lateral load θ1, θ2 Angle between horizontal material and brace centered on pin

Claims (7)

This is a brace for a temporary structure that is installed between a horizontal member horizontally installed between two adjacent support columns and one of the two support columns obliquely with an up and down inclination angle. One end of the upper and lower ends is connected to the horizontal member by a pin extending in a horizontal direction perpendicular to the length direction of the horizontal member, and the other end is connected to the one of the first and second ends. In the brace for a temporary structure that is connected to the support by connecting means,
At the end of the brace main body that is on the same side as the one end, there is a facing portion that faces the horizontal member up and down, and this facing portion contacts the horizontal member so that the pin is centered. A brace for a temporary structure, characterized in that an angle change prevention member is provided for preventing an angle between the horizontal member and the brace body from changing.   The temporary structure brace according to claim 1, wherein the pin is coupled to the angle change prevention member.   The brace for a temporary structure according to claim 1, wherein the angle change prevention member has two wall portions arranged in parallel with a gap in a direction orthogonal to a length direction of the horizontal member, A brace for a temporary structure, wherein the horizontal member is inserted between wall portions.   4. The brace for a temporary structure according to claim 3, wherein the shape of at least one of the two walls is a front view in which the length direction of the horizontal member is a left-right direction. A brace for a temporary structure, characterized in that it is a triangle or a substantially triangular shape provided with an oblique side inclined upward and downward so that the horizontal member can be inserted between the walls.   The brace for a temporary structure according to claim 3 or 4, wherein the end portion of the brace body provided with the angle change prevention member is an upper end portion, and the angle change prevention member includes the two pieces. A brace for a temporary structure, wherein a bottom part connecting lower ends of wall parts is provided, and the upper end part of the brace body is coupled to a lower surface of the bottom part which is the facing part.   The brace for a temporary structure according to any one of claims 3 to 5, wherein a proximal end portion of the pin is coupled to one wall portion of the two wall portions, and the pin is connected to the two wall portions. A brace for a temporary structure, characterized in that it extends in the direction of the interval between the parts. The brace for a temporary structure according to any one of claims 1 to 6, wherein the angle change prevention member is formed by bending a plate material.

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