JPH0542182Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention relates to a joint structure for a crosspiece joint for civil engineering and construction.

Here, the civil engineering and construction crosspiece joints refer to at least one
A crosspiece assembly in which one crosspiece of a book is joined at a right angle or diagonally to at least one other crossbench, and is attached to the inside or outside of a building, or is attached to a building site, park, playground, or factory. Handrails such as window handrails, stair handrails, balcony handrails, bridge handrails, window lattices, lattice doors, and partitions. Lattices such as lattices, pastures, farms, flower beds, lawns,
This includes partitions or protective fences for roads, rivers, ponds, lakes, etc., and fences such as building exterior walls and fences.

[Prior Art] In the conventional joint structure disclosed in Japanese Utility Model Application Publication No. 60-99606, a connecting plate portion is provided at the end face of one of the crosspieces, and a plate portion is cut and raised from the tip side of the connecting plate portion. is provided at an angle, and a slot into which the connecting plate part is inserted is provided in the joint plate part of the other crosspiece made of hollow material, and the connecting plate part is made by cutting and raising the edge surface of the slot to elastically deform the plate part. is inserted into the slot, and the tip surface of the cut and raised plate part, which is elastically restored within the hollow part of the other crosspiece, is brought into contact with the back surface of the joint plate part.

[Problems to be solved by the invention] Compared to conventional joint structures that are assembled using screws or rivets, this joining structure, which can be assembled by just the mating operation, does not require separate fixing tools such as screws, making the work easier. Although it is excellent in simplicity, depending on the material used for the crosspiece forming the connecting plate part, the elastic recovery of the cut and raised plate part after passing through the slot may be incomplete.

In order to incline each cut-and-raised plate sufficiently so that the tip of the cut-and-raised plate properly contacts the connecting plate, press the cut-and-raised plate from the side and press the connecting plate. However, since the other crosspiece with the slotted hole is made of hollow material and the back side of the crosspiece is completely closed, the cut and raised plate parts are not visible except near the left and right ends of the crosspiece. There is no space available for pressurized operation.
Therefore, it is necessary to separately devise a pressurizing operation jig that is inserted from the left and right ends of the only open crosspiece, which may conversely complicate the assembly work.

Therefore, the purpose of the present invention is to easily restore the tilt of the cut-and-raised plate portion whose elastic restoration is incomplete in a large space for pressurizing operation, so that assembly can be performed with good work efficiency and with high joint strength. An object of the present invention is to provide a joint structure for a civil engineering crosspiece joint.

[Means for Solving the Problems] As explained below using the reference numerals in the attached drawings, in the joint structure of the civil engineering crosspiece joint of the present invention, one of the two crosspieces 1 and 2 joined in a cross-sectional manner. A joining end surface portion 3 and a connecting plate portion 4 are provided on the crosspiece 1, and the connecting plate portion 4
The cut and raised plate portion 5 is provided at an angle from the tip side,
The joint plate portion 7 that the end surface portion 3 of the crosspiece 1 abuts is configured integrally with the other crosspiece 2, or is configured and attached separately,
When the connecting plate part 4 is inserted, a groove hole 8 is provided in the joint plate part 7, the edge surface of which slides into sliding contact with the inclined side surface of the cut and raised plate part 5 and elastically deforms the cut and raised plate part 5 in the burying direction. ,
A pressure operation opening 15 is formed on one side of the joint plate part 7 to restore the slope of the cut-and-raised plate part 5, which is incompletely elastically restored after passing through the slot, by plastic deformation. The portion 7 is held between the end surface portion 3 of the crosspiece 1 and the tip surface 6 of the cut and raised plate portion 5.

[Example] The civil engineering crosspiece joint of the illustrated example is a lattice body that is fitted and fixed between the pillars of a balcony handrail. FIGS. 1 to 4 show the lower part of the lattice body, and one of the vertical bars 1 is made of a square pipe made by connecting the left and right side plate parts 9, 9 with the front plate part 10 and the back plate part 11. It consists of The connecting plate portion 4 is formed at the center of the end surface portion 3 of each side plate portion 9. The other crosspiece 2 serving as the lower crosspiece is made of a channel-shaped material in which a front plate part 12 and a back plate part 13 are connected by a joint plate part 7, and the integrally molded joint plate part 7 is arranged facing upward. A pair of left and right slots 8, 8 are formed in the center of the joint plate part 7, and reinforcing band-shaped ribs 14 are provided inward at the lower ends of the front plate part 12 and the back plate part 13.

As shown in FIG. 2, when the connecting plate part 4 is inserted into the slot 8 until the end face 3 of the crosspiece 1 comes into contact with the upper surface of the joint plate part 7 of the crosspiece 2, the edge surface of the slot 8 is cut out. Shi board part 5
The cut and raised plate part 5 is connected to the connecting plate part 4 by sliding contact with the inclined side surface of the
It is elastically deformed in the direction of being buried inside. The moment the entire cut-and-raised plate portion 5 passes through the slot 8, the cut-and-raised plate portion 5
is elastically restored and protrudes in an inclined state toward the lower surface 16 of the joint plate portion 7.

If there is a cut-and-raised plate portion 5 with incomplete elastic recovery, insert an appropriate tool or jig through the pressurizing operation opening 15 formed on the lower surface side of the crosspiece 2, and cut and raise it. The plate portion 5 is additionally pressurized. In this way, the tip surfaces 6 of all the cut and raised plate parts 5 are connected to the joint plate part 7.
The end surface portion 3 contacts the lower surface 16 of the joint plate portion 7.
By contacting the upper surface 17 of the crosspiece 1 and the crosspiece 2,
are joined and connected in a state where they intersect at right angles. The direction in which this cut and raised plate portion 5 projects obliquely is shown in FIGS. 3 and 4.
As shown on the left side of the figure, the left and right side plates 9 of the crosspiece 1,
It may be on the inside of 9 or on the outside as shown on the right side of FIGS. 3 and 4, and it is also possible to use both the inside and outside projections.

In the embodiment shown in FIGS. 5 to 7, the crosspiece 1 is made of square pipe material, and the connecting plate portions 4 are formed by extending each side plate portion 9 of the crosspiece 1 downward over the entire width. The joining end surface portion 3 is constituted by the lower end surfaces of the front plate portion 10 and the back plate portion 11.
Correspondingly, the crosspiece 2 is made of channel shaped material.
A long slot 8 is formed in the joint plate portion 7 . In this way, in this embodiment, the connecting plate part 4 is formed wide, and the cut and raised plate part 5 can also be formed wide, so that higher bonding strength can be obtained.

In the embodiment shown in FIGS. 8 to 10, the crosspiece 1
is made of square pipe material, and the connecting plate part 4 has a main part that extends downward over the entire width of each side plate part 9 of the crosspiece 1, and a main part that extends downwardly from each of the left and right ends of the front plate part 10 and the back plate part 11. The joining end surface 3 is constituted by the lower end surfaces of the front plate 10 and the back plate 11 other than the sleeve plate 18.

Correspondingly, a U-shaped slot 8 having branch grooves 19 at each end is formed in the joint plate part 7 of the crosspiece 2, which is made of a channel-shaped member. Since the connecting plate portion 4 is thus reinforced by the sleeve plate portions 18 at each of the front and rear ends, even higher joint strength can be obtained in this embodiment.

In the embodiment shown in FIGS. 11 to 13, the crosspiece 1 is made of a square pipe material with band-shaped ribs 20 protruding from the left and right ends of the front plate part 10 and the back plate part 11. The connecting plate part 4 is formed into a rectangular tube shape in which left and right side plate parts 9, 9, a front plate part 10, and a rear plate part 11 are extended downward over the entire width. The joining end surface portion 3 is formed by cutting off the end portion of each band-shaped rib 20.

Correspondingly, a rectangular slot 8 is formed in the joint plate portion 7 of the crosspiece 2 made of channel-shaped material. In this manner, in this embodiment, the connecting plate portion is formed into a rectangular tube shape, and the band-shaped ribs 20 on the front, rear, left, and right sides are provided protrudingly, so that even higher joint strength can be obtained.

In the embodiment shown in FIGS. 14 and 15, the crosspiece 1 is made of square pipe material, and the connecting plate part 4 spans the entire width of the left and right side plates 9, 9, the front plate part 10, and the rear plate part 11. It is formed into a rectangular tube shape extending downward, and the joining end face 3 is connected to the left and right side plate parts 9, 9 and the front plate part 10.
and each lower end surface of the back plate portion 11.
The crosspiece 2 made of channel-shaped material has band-shaped ribs 14 protruding inward at the lower ends of each of the front plate part 12 and the back plate part 13, and the tip surface 6 of the cut-and-raised plate part 5 is connected to the joint plate part 7. When abutting against the lower surface 16, the joining end surface 3 abuts against the upper surface of the band-shaped rib 14.

The formation location and cross-sectional shape of the connecting plate portions 4 of the crosspiece 1 are not limited to those shown in the drawings, and the number of connecting plate portions 4 formed is not limited to the above-mentioned two, but can be increased or decreased as appropriate depending on the use of the civil engineering crosspiece joint.

In the embodiment shown in FIGS. 16 and 17, the crosspiece 1
is made of square pipe material, and four connecting plate parts 4 are formed independently on the left and right side plate parts 9, 9, the front plate part 10, and the rear plate part 11, and correspondingly, the connecting plate parts 4 are made of channel-shaped material. Four groove holes 8 are formed in isolation in the joint plate portion 7 of the crosspiece 2. Since the number of connecting plate portions 4 and cut and raised plate portions 5 is large in this way, the joint strength is high in this embodiment.

In the embodiment shown in FIGS. 18 and 19, the crosspiece 1
is made of round pipe material, and two connecting plate parts 4 are protruded diametrically opposite each other, and correspondingly, two arcuate grooves are provided in the joint plate part 7 of the crosspiece 2 made of channel-shaped material. A hole 8 is formed.

In the embodiment shown in FIG. 20, the crosspiece 1 is composed of a channel-shaped member in which left and right side plates 9, 9 are connected by a front plate 21, and reinforcement is provided at each left and right end of the front plate 21. A band-shaped rib 20 is provided protrudingly. Three connecting plate parts 4 are formed independently on each end face part 3 of the left and right side plate parts 9, 9 and the front plate part 21, and correspondingly, three connecting plate parts 4 are formed on the connecting plate part 7 of the crosspiece 2 made of channel shaped material. Three slots 8 are formed with different directions.

In the embodiment shown in FIG. 21, the crosspiece 1 is composed of an H-shaped member in which left and right side plates 9, 9 are connected by an intermediate plate part 22, and the connecting plate part 4 is provided to protrude from the intermediate plate part 22. . In the embodiment shown in FIG. 22, the crosspiece 1 is composed of a U-shaped member in which left and right side plate parts 9, 9 are connected by a curved front plate part 10, and the connecting plate part 4 is formed by connecting left and right side plate parts 9, 9. Two pieces are formed on the lower surface of 9.

In the embodiment shown in FIG. 23, the crosspiece 2 is composed of a member having a semi-cylindrical cross section in which a front plate part 12 and a rear plate part 13 are connected by a curved joint plate part 7, and correspondingly, a joint end face part 3 is formed by cutting the left and right side plate portions 9 of the crosspiece 1 made of square pipe material into an arc shape.

This invention can be implemented in various forms,
The cross-sectional shapes of the crosspieces 1 and 2, the shapes of the end surfaces 3, the shapes and numbers of the connecting plate portions 4, slots 8, and cut-and-raised plate portions 5 are not limited to those shown in the drawings, and may be changed as appropriate. Can be done. Various combination changes are possible, such as a combination of a rectangular cross section and a rectangular cross section, a combination of a rectangular cross section and a circular or arcuate cross section, a combination of a circular cross section and a circular arc cross section, etc.

FIG. 24 shows the upper part of the lattice body, and the crosspiece 2 serving as the upper crosspiece is molded to be divided into a main body portion and a joint plate portion 7. The main part of the crosspiece 2 is composed of a channel-shaped member in which the front plate part 12 and the back plate part 13 are connected by the upper plate part 25, and the lower ends of the front plate part 12 and the back plate part 13 are provided with inward-facing non-return claws. A portion 29 is provided in a protruding manner. As shown in FIG. 24, the connecting plate portion 7 has outward-facing non-return claw portions 23 protruding from each of its front and rear ends. In addition, the front plate part 12 and the back plate part 1 of the crosspiece 2
A screw receiving groove portion 27 is provided on the inner surface side of 3 in a longitudinal direction.

As shown in FIG. 26, the connecting plate part 4 is inserted into the slot 8 until the end face 3 of the crosspiece 1 comes into contact with the lower surface 16 of the joining plate part 7, and the cutout protruding from the upper surface 17 of the joining plate part 7 is inserted. By elastically restoring the raised plate part 5 in an inclined shape, the crosspiece 1 and the joint plate part 7 are connected. When this cut-and-raised plate part 5 with incomplete elastic recovery exists, the joint plate part 7 is not yet attached to the main body part of the crosspiece 2, so the upper surface side of the joint plate part 7 is wide open. A replenishing pressurizing operation can be applied to the cut and raised plate portion 5 from the space created.

In this way, the main part of the crosspiece 2 is pushed down from above against the joint plate part 7 that connects the upper ends of the plurality of crosspieces 1, and the non-return claw part 23 and the non-return claw part 29
By elastically engaging the joint plate portion 7
is integrally attached to the main part of the crosspiece 2. The lower crosspiece 2, which serves as the lower crosspiece, is made of a channel-shaped member, and an inward check claw portion 29 is also provided protruding from each inner surface of the front plate portion 12 and the rear plate portion 13. In the lower crosspiece 2, the lower ends of the plurality of crosspieces 1 are similarly connected to the joint plate part 7 by inserting the connecting plate part 4 into the slot 8 and by protruding the cut and raised plate part 5 at an angle. .

As shown in FIG. 25, the lattice body assembled with the upper and lower two crosspieces 2, 2 and the plurality of crosspieces 1, 1 is arranged between the pillars 24, 24 of the balcony handrail, which has the Kasagi member 26 fixed to the upper end. Placed. A mounting bracket 30 is abutted against each left and right end of the upper crosspiece 2, and the mounting bracket 30 is fixed to the main portion of the crosspiece 2 by a screw 28 that is screwed into the screw receiving groove 27 from the side surface mounting hole. be done. Mounting bracket 30
is the potprivet 3 that passes through the side mounting hole of the support column 24.
1 to the support column 24.

Mounting brackets 3 are attached to each left and right end of the lower crosspiece 2.
3 are brought into contact with each other, and by elastically engaging the outward non-return claws 36 at the front and rear ends of the horizontal plate portion 35 with the non-return claws 29, the mounting bracket 33 is attached to the crosspiece 2.
is fixed to. This mounting bracket 33 is attached to the support post 2.
It is fixed to the column 24 by a fixing rivet 34 passing through the side mounting hole No. 4. In addition, with bracket 33
can also be fixed to the crosspiece 2 by screws 28 that are screwed into the screw receiving grooves 27 from the side mounting holes. The lower end of the support column 24 is fixed to an anchor plate 38 via an adjustment member 37.

FIGS. 27 and 28 show another embodiment, in which an upper crosspiece 2 serving as a cap member for a balcony handrail is divided into a main part and a connecting plate part 7. The main part of the crosspiece 2 is made of a channel-shaped member, and inward connecting grooves 40, 40 are protruded from the lower ends of the front plate part 12 and the back plate part 13. As shown in FIG. 27, the separately molded joint plate portion 7 has two reinforcing ribs 39 protruding in parallel from each of the front and rear ends slightly inclined upward. In addition, the front plate part 1
Screw receiving grooves 27 are provided on the inner surfaces of 2 and the back plate 13 so as to protrude from each other and face each other.

As shown in FIG. 28, after connecting the upper ends of the plurality of crosspieces 1 to the joining plate part 7 by inserting the connecting plate part 4 into the slot 8 and protruding the cut and raised plate part 5 at an angle, The joint plate portion 7 is integrally attached to the main body portion of the upper crosspiece 2 by inserting the front and rear ends with reinforcing ribs 39 into the connecting groove portion 40 from the left and right sides. In the lower crosspiece 2 serving as the lower crosspiece of the handrail, the joint plate portion 7 is integrally molded with the main body portion of the crosspiece. The lower end of each crosspiece 1 is connected to the lower crosspiece 2 by inserting the connecting plate part 4 into the slot 8 and by protruding the cut and raised plate part 5 at an angle.

The handrail body assembled with the two upper and lower crosspieces 2, 2 and the plurality of crosspieces 1, 1 in this manner is arranged between the side frames 41, 41 of the balcony handrail made of channel-shaped members. The left and right ends of the upper and lower crosspieces 2 fitted in the side recesses of the side frame 41 are connected to the screw receiving grooves 2 by screws 28 passing through the mounting holes in the side plate 42 of the side frame 41.
It is attached to the side frame 41 by screwing in 7. A mounting bracket 44 is fixed to the partition wall or blind wall 45 of the balcony by bolts 47 screwed into nut-shaped inserts 46, and the side frame 41 is fixed to the mounting bracket 44 by bolts 43. ing.

FIG. 29 and FIG. 30 show still another embodiment,
The upper crosspiece 2, which is the capping material for the balcony handrail, is
It is divided into a main part and a connecting plate part 7. The main part of the crosspiece 2 consists of a front plate part 12, a rear plate part 13, a curved top plate part 25, and a flat bottom plate part 5.
It is composed of hollow sections connected by 0. The lower plate part 50 is formed to be slightly shifted upward from the lower edges of the front plate part 12 and the rear plate part 13, and has a groove-shaped recessed part 51 formed therein. As shown in FIG. 29, upward reinforcing ribs 48 are protruded from each of the front and rear ends of the joint plate portion 7.

As shown in FIG. 30, the upper ends of the plurality of crosspieces 1 are connected to the joining plate part 7 by inserting the connecting plate part 4 into the slot 8 and by protruding the cut and raised plate part 5 at an angle. When the reinforcing rib 48 abuts against the lower plate part 50 of the crosspiece main part, the joint plate part 7 is entirely recessed into the groove-shaped recess 51. From the mounting hole 49 of the joint plate part 7 to the lower plate part 5
By screwing the screws 53 into the screw holes in the central thick portion 52 of 0, the joint plate portion 7 is integrally fixed to the main portion of the crosspiece 2. The main portion of the upper crosspiece 2 constituting this cap member is fixed to the upper end of the support column 24.

In the lower crosspiece 2 that becomes the lower crosspiece of the handrail, the joint plate part 7
is integrally molded with the main part of the crosspiece. The lower end of each crosspiece 1 is connected to the lower crosspiece 2 by inserting the connecting plate part 4 into the slot 8 and by protruding the cut and raised plate part 5 at an angle.
A mounting bracket plate 54 is fixed to each of the left and right ends of the lower crosspiece 2 by screws 28 that are screwed into the screw receiving groove 27 from the side surface mounting hole. It is fixed to the column 24 by a rivet 55 passing through.

Although the crosspieces 1 and 2 are typically made of aluminum, other metal materials can also be used, and they can be used not only for handrails such as the balcony handrails shown in the figure, but also for the above-mentioned latticework and fences. can also be applied.

[Effect of the invention] As described above, the joining structure of the civil engineering crosspiece joint of the present invention has the joining end surface part 3 and the connecting plate part 4 on one crosspiece 1.
The connecting plate part 7 that the end face part 3 abuts is attached to the other crosspiece 2 either integrally or separately, and the plate part 5 is cut and raised from the tip side of the connecting plate part 4. A pressurizing operation opening 15 that is inclined and provided with a groove 8 in which the connecting plate 4 is fitted into the joint plate 7, and that allows easy access to the cut and raised plate 5 that protrudes from the groove 8.
is formed on one side of the joint plate part 7, so even if there is a cut and raised plate part 5 whose elastic recovery is incomplete after passing through the slot 8, by immediately performing a replenishing pressure operation,
The cut and raised board parts 5 can be set to a sufficiently inclined state, and by abutting the tip surfaces 6 of all the cut and raised board parts 5 against the joint plate part 7 of the crosspiece 2, the crosspiece 1 and the crosspiece 2
can be assembled efficiently and with high joint strength.

[Brief explanation of the drawing]

1 to 4 show a joining structure according to an embodiment of the present invention, FIG. 1 is a perspective view when two crosspieces are in an unjoined state, and FIG. 2 is a perspective view in a joined state. FIG. 3 is a vertical cross-sectional view of a main part in a joined state, and FIG. 4 is a bottom view in a joined state.
5 to 7 show a joining structure according to another embodiment of the present invention, FIG. 5 is a perspective view when two crosspieces are in an unjoined state, and FIG. 6 is a schematic view of the joined state. FIG. 7 is a bottom view of the bonded state. 8 to 10 show a joining structure according to still another embodiment of the present invention, FIG. 8 is a perspective view of two crosspieces in an unjoined state, and FIG. 9 is a perspective view of the two crosspieces in a joined state. FIG. 10 is a longitudinal sectional view of the main part, and FIG. 10 is a bottom view of the bonded state. 11 to 13 show a joining structure according to another embodiment of the present invention, and FIG.
The figure is a perspective view when the two bars are in an unjoined state, FIG. 12 is a longitudinal sectional view of a main part in a joined state, and FIG. 13 is a bottom view in a joined state. 14th
15 and 15 show a joining structure according to yet another embodiment of the present invention, FIG. 14 is a longitudinal sectional view of a main part in a joined state, and FIG. 15 is a left side view in a joined state. 16 and 17 show a joining structure according to another embodiment of the present invention, FIG. 16 being a bottom view of the joined state, and FIG. 17 being a left side view of the joined state. 18 and 19 show a joining structure according to another embodiment of the present invention, FIG. 14 is a bottom view of the joined state, and FIG. 19 is a perspective view of the lower part of one of the crosspieces. FIG. 20 is a perspective view of the crosspiece in an unjoined state in another embodiment of the present invention. FIG. 21 is a perspective view of the crosspiece in an unjoined state in still another embodiment of the present invention. FIG. 22 is a perspective view of the crosspiece in an unjoined state in another embodiment of the present invention. FIG. 23 is a right side view of the joined state of the crosspieces in another embodiment of the present invention. From FIG. 24 to FIG. 26 show a balcony handrail according to an embodiment of the present invention, FIG. 24 is a perspective view of the connecting plate part of the upper crosspiece and the crosspiece in an unjoined state, and FIG. FIG. 26 is a front view of the handrail in an attached state, and FIG. 26 is a vertical cross-sectional view of the main part of the handrail. FIGS. 27 and 28 show a balcony handrail according to another embodiment of the present invention, FIG. 27 is a perspective view of the upper crosspiece in a state where it is not connected to the joint plate part of the upper crosspiece, and FIG. FIG. 3 is a left side view of the main part of the handrail in an attached state. 29 and 30 show a balcony handrail according to yet another embodiment of the present invention, in which FIG. 29 is a perspective view of the upper crosspiece in a state where it is not connected to the joining plate part of the upper crosspiece, and FIG. is a vertical cross-sectional view of a main part of the handrail in an attached state. DESCRIPTION OF SYMBOLS 1...One crosspiece, 2...The other crosspiece, 3...End face part, 4...Connecting plate part, 5...Cut and raised plate part, 6...
Tip surface, 7... Joint plate part, 8... Slot, 9... Side plate part, 10... Front plate part, 11... Rear plate part,
12... Front plate part, 13... Rear plate part, 14...
Reinforcing rib, 15... Opening part for operation, 16... Lower surface of joint plate, 17... Upper surface of joint plate part, 18... Sleeve plate part, 19... Branch groove part, 20... Reinforcing rib, 2
DESCRIPTION OF SYMBOLS 1... Front plate part, 22... Intermediate plate part, 23... Outward non-return claw part, 24... Support column, 25... Top plate part, 26... Kasagi member, 27... Screw receiving groove part, 2
8... Fixing screw, 29... Inward non-return claw part,
30...Mounting bracket, 31, 32...Fixing rivet, 33...Mounting bracket, 34...Fixing rivet, 35...Horizontal plate portion, 36...Outward non-return claw portion, 37...Adjustment member , 38... Anchor plate, 39... Reinforcing rib, 40... Connection groove, 41... Side frame, 42... Side plate part, 43
... Fixing bolt, 44 ... Mounting bracket, 4
5... Partition wall portion, 46... Nut-shaped insert,
47...Fixing bolt, 48...Reinforcement rib, 49
... Mounting hole, 50 ... Bottom plate part, 51 ... Groove-shaped recess, 52 ... Thick part, 53 ... Fixing screw, 54
...Mounting bracket, 55...Fixing rivet.

Claims (1)

[Scope of utility model registration request] A joining end surface 3 and a connecting plate part 4 are provided on one of the two crosspieces 1 and 2 that are joined in a cross-sectional manner, and a plate part 5 is cut and raised from the tip side of the connecting plate part 4 and is inclined. provided, and the joint plate part 7 that the end face part 3 abuts is configured integrally with the other crosspiece 2, or is configured separately and attached,
When the connecting plate part 4 is inserted, a groove hole 8 is provided in the joint plate part 7, the edge surface of which slides into sliding contact with the inclined side surface of the cut and raised plate part 5 to elastically deform the cut and raised plate part 5 in the burying direction, A pressure operation opening 15 is formed on one side of the joining plate part 7 to restore the slope of the cut and raised plate part 5, which has not fully elastically restored after passing through the slot 8, by plastic deformation, and the joint of the crosspiece 2 is formed on one side of the joining plate part 7. This is a joining structure of a crosspiece joint for civil engineering and construction, in which a plate part 7 is sandwiched between an end surface part 3 of a crosspiece 1 and a tip surface 6 of a cut and raised board part 5.