KR100731529B1 - Steel member installation method, and lip channel steel and metallic fixing member used for the same - Google Patents

Abstract

Even if a large external force is applied to the fixing bracket, the fixing bracket provides a steel mounting method in which there is no fear of positional displacement with respect to the rib groove steel. In the mounting method of the steel material which mounts the lip groove type steel 10 to the angle steel 50 using the fixing bracket 40, the mounting notch was installed in the lip end edge of the lip groove type steel 10. As shown in FIG. Moreover, the bolt hole 53 was provided in the angle steel 50. As shown in FIG. In addition, the fixing bracket 40 was composed of an engaging portion 41 for engaging the stationary notch and a bolt portion 42 for insertion into the bolt hole 53. By engaging the engaging portion 41 with the stationary notch of the lip groove steel 10 and tightening the bolt portion 42 through the bolt hole provided in the angle steel 50, the lip groove steel 10 is an angle steel ( 50).

Fixing brackets, ribbed steel, angle steel, mounting notches, bolt holes, bolted portion

Description

Steel member installation method, and lip channel steel and metallic fixing member used for the same}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of mounting a steel material that firmly connects rib grooved steel and other steel materials, which are mainly used for base materials such as body edges or inner rooms. The present invention also relates to a rib groove steel and a fixing bracket used in the method of mounting the steel material.

As a conventional fastening bracket for steel base material for construction, Patent Document 1 discloses a fastening tool for fixing a face plate for construction to be mounted on a steel base material for construction, and the steel base material for construction is a contact surface with a seat surface of the fastening tool. Stud type, ceiling framed or angled configuration having a knurling surface, and the fixed bracket is machined in the form of a continuous cross section of the mountain shape engaging the knurled surface on the seat surface of the head having the bolt body. A T-shaped bolt structure having a face is formed, the building face member is continuously disposed on the base steel material for construction, and the bolt body of the fixing bracket is inserted into the end of the face member which is in contact with each other, and fixed to the contact surface. Engage the machined surface of the bracket and screw the nut into the threaded part of the bolt body to mount the building face plate on the steel base material for construction. It is described that it as claimed. This makes it possible not only to omit marking off or opening work, but also to provide a fastening bracket for a base material for construction steel, which enables robust mounting at low cost and enables temporary installation of bolts and the like. have.

Patent document 1: Unexamined-Japanese-Patent No. 06-299675 (a claim, the effect of invention, FIG. 2, FIG. 7)

Problems to be Solved by the Invention

The fixing bracket of Patent Literature 1 firmly connects steel materials such as rib grooved steel to the fixing bracket or the base steel of building steel, but does not have a knurling process. However, when a large external force is applied to the fixing bracket, The fastening brackets engaged with the knurled surface of the building steel base material easily fell off, and there was a fear that the fixing brackets would be out of position with respect to the building steel base material. In particular, in the case of arranging the building steel base material in the vertical direction, the connection strength of the steel material was unstable. Moreover, even when it tried to work in the state fixed to the surface plate for building and the base material for building steel, there was a possibility that the processed fixing tool may move easily during work.

In order to solve the said problem, when the groove | channel and the unevenness | corrugation formed by knurling process were enlarged, the plate | board thickness and the fixed bracket required for a building steel base material may become large, and the weight of the steel material used may become large. In this case, it is necessary to precisely match the pitch of the unevenness of the processing surface of the mountain-shaped continuous cross section formed in the fixing bracket with the pitch of the unevenness of the knurled processing surface formed in the base material made of steel for construction. There is a fear that the processing cost of base steel or fasteners for construction will be expensive.

This invention is made | formed in order to solve the said subject, Comprising: Even when a large external force is applied to a fixed bracket, it provides the mounting method of the steel material which can prevent a position shift with respect to a lip groove type steel. Moreover, even if it is in the temporarily fixed state, it is providing the mounting method of the steel material which can prevent the fixed bracket from moving with respect to a rib grooved steel. It is also to provide a rib grooved steel and a fixing bracket which can be suitably used for the mounting method of the steel.

Means to solve the problem

The object of the present invention is a method of mounting steel for mounting a rib grooved steel to another steel using a fixed bracket, the rib grooved steel is made of a mounting notch is installed on the edge of the lip end, the other steel is made with a bolt hole, The fixed bracket is composed of an engaging portion for engaging the recessed notch and a bolt portion for penetrating the bolt hole, engaging the engaging portion with the stationary notch of the rib groove steel, and tightening the bolt portion through the bolt hole. This is solved by providing a method of mounting steel. As a result, even when a large external force is applied to the fixing bracket, the fixing bracket can be prevented from sliding with respect to the rib groove steel. Examples of the other steel material on which the rib grooved steel is mounted include steel for joints such as angle steel, bar steel such as grooved steel or H-shaped steel, and planar steel used for wall materials.

At this time, it is preferable to clamp the other steel material with a lip and a nut by screwing a nut to the said bolt part. This makes it possible to improve the connection strength between the rib grooved steel and the angle steel. At this time, it is also preferable to temporarily fix the fixing bracket to the other steel material in a state where the nut is delayed, arrange the lip groove type steel at a desired position, and then fix the nut by tightening the nut. This makes it possible to further improve workability in the field.

Moreover, the said subject is a lip groove type steel mounted to another steel material using a fixed bracket, the lip base part which extends inwardly from the upper end of both outer walls of a lip groove type steel, and a lip groove type from the tip of the said lip base part. It is also solved by providing a lip grooved steel which consists of a lip end extending towards the bottom of the steel and a mounting notch for engaging the fastening bracket is provided at the lip end. This rib grooved steel is suitable as a rib grooved steel used in the method of mounting the steel.

At this time, although each notch which comprises the said stationary notch may be triangular-shaped, it is preferable that it is substantially trapezoidal. If each notch is triangular, the pressing force received from the fixing bracket may concentrate around the vertex of the notch, and the lip groove steel or the fixing bracket may be damaged. However, by making the individual notch trapezoidal, it is applied to the lip groove steel from the fixing bracket. This is because it becomes possible to distribute the pressing force. Each part of the notch may be rounded.

At this time, it is also preferable that the individual notches constituting the stationary notch are provided at intervals of 5-50 mm. If this gap is less than 5 mm, the dimension of each notch becomes small and there exists a possibility that the said fixing bracket may shift | deviate with respect to a lip groove type steel, when a large external force is applied to the fixing bracket. The interval is more preferably 10 mm or more, and more preferably 15 mm or more. On the other hand, when this space | gap is larger than 50 mm, there exists a possibility that the positioning of the fixing bracket with respect to a rib grooved steel may be unable to perform little by little. The interval is more preferably 40 mm or less, and more preferably 30 mm or less. 25 mm or less is optimal.

Moreover, the said subject is a fixed bracket used for mounting a rib groove steel to another steel material, Comprising: It consists of a substantially bar-shaped engagement part and the bolt part installed perpendicularly to the center of the said engagement part, and is provided in the bolt part vertical installation side of the said engagement part. It is also solved by providing a fixing bracket in which at least a portion in contact with the lip end portion is formed in a wedge shape. This fixing bracket is suitable as a fixing bracket used in the steel mounting method.

Effects of the Invention

According to the present invention, even when a large external force is applied to the fixing bracket, it is possible to provide a steel mounting method in which the fixing bracket does not have a risk of positional displacement with respect to the rib grooved steel. Further, even in the state of temporarily fixing, it becomes possible to provide a mounting method of steel material which can prevent the fixing bracket from moving with respect to the rib grooved steel. It is also possible to provide rib grooved steel and fixing brackets suitable for the method of mounting the steel material.

1 is a perspective view of lip grooved steel;

FIG. 2 is a side elevational view of the ribbed steel of FIG. 1 in a longitudinal direction. FIG.

3 is a sectional view taken along line A-A of the lip groove of FIG. 2;

4 is a perspective view showing the fixing bracket of the first embodiment;

Fig. 5 is a front view showing the fixing bracket of the first embodiment.

6 is a plan view showing the fixing bracket of the first embodiment;

Fig. 7 is a right side view showing the fixing bracket of the first embodiment.

Fig. 8 is a bottom view showing the fixing bracket of the first embodiment.

Fig. 9 is a perspective view showing the fixing bracket of the second embodiment.

Fig. 10 is a front view showing the fixing bracket of the second embodiment.

Fig. 11 is a plan view showing the fixing bracket of the second embodiment.

Fig. 12 is a right side view showing the fixing bracket of the second embodiment.

Fig. 13 is a bottom view showing the fixing bracket of the second embodiment.

Fig. 14 is a view showing a state in which the fixing bracket of the second embodiment is rotated inside the groove of the rib grooved steel.

Fig. 15 is a perspective view showing the fixing bracket of the third embodiment.

Fig. 16 is a front view showing the fixing bracket of the third embodiment.

17 is a plan view showing the fixing bracket in the third embodiment.

Fig. 18 is a right side view showing the fixing bracket of the third embodiment.

Fig. 19 is a bottom view showing the fixing bracket of the third embodiment.

20 is a perspective view showing a state before the bolt portion 42 passes through the bolt hole 53.

FIG. 21 is a perspective view showing a state in which the rib grooved steel 10 is mounted on the angle steel 50 using a fixing bracket. FIG.

Fig. 22 is a side view of the rib grooved steel 10 mounted to the support 70 in the longitudinal direction of the rib grooved steel 10, using the steel mounting method of the present invention.

FIG. 23 is a sectional view taken along the line C-C in FIG. 22; FIG.

Brief description of symbols for the main parts of the drawings

10: rib groove steel 11: outer wall

12: top of the outer wall 13: bottom

20: Lip 21: Lip Donation

22: tip of the lip base 23: end of the lip

24: Tip end of lip 30: Mounted notch

31-33: side 34: corners formed by adjacent notches

40: fixed bracket 41: engaging portion

42: bolts 43 to 45: surface

46: lip contact 50: angle steel

51, 52: plate 53: bolt hole

60: nut 61: washer

70: prop

Best Mode for Carrying Out the Invention

EMBODIMENT OF THE INVENTION Hereinafter, although preferred embodiment of this invention is described concretely with reference to drawings, embodiment of this invention is not limited to this.

First, the rib grooved steel which can be used suitably for the mounting method of the steel material of this invention is demonstrated. 1 is a perspective view of lip grooved steel 10. FIG. 2 is a side view of the rib grooved steel of FIG. 1 seen in the longitudinal direction. FIG. 3 is an A-A cross-sectional view of the rib grooved steel 10 of FIG. 2.

As shown in FIG. 2, the lip 20 of the lip grooved steel 10 includes a lip base 21 extending inwardly from an upper end 12 of both outer walls 11 of the lip grooved steel 10, and a lip 20. It consists of a lip tip 23 extending from the tip 22 of the base 21 toward the bottom 13 of the lip groove steel 10. The front end 24 of the lip end 23 is provided with a stationary notch 30 for engaging the fixing bracket described later. In the present embodiment, the outer wall 11 and the lip base 21, and the lip base 21 and the lip end 23 are all vertical.

In this embodiment, the respective spacing of the notch constituting the stationary notches (30) (L _1; Fig. 3) is to 20mm. The interval L ₁ of the individual notches constituting the stationary notch 30 usually coincides with the positioning scale of the fixed bracket. Therefore, the rib grooved steel 10 of this embodiment is able to position the fixing bracket mentioned later by 20 mm. Although a certain clearance may be provided between individual notches, it is preferable that adjacent notches are continuously connected like this embodiment. Depending on the type of work, there may be cases in which the stationary notch 30 may not be visible, but even in this case, it is easy to find the engaging portion of the fixing bracket to be described later by hand and to engage the notch. It is preferable if the corner portions 34 formed by the adjacent notches are rounded because the lip groove steel 10 can be made safer.

Moreover, the individual notches which comprise the stationary notch 30 are trapezoidal. At this time, the parallel pairs of trapezoids formed by the respective notches are parallel to the longitudinal direction of the rib groove steel 10, and the shorter sides 31 of the pairs of parallel pairs are upper sides ( The side close to the lip base 21). The stationary notch 30 can be easily formed by using a cutter or a punch.

It is preferable that the angle ((theta); FIG. 3) which the pair of trapezoidal non-parallel sides 32 and 33 which each notch forms forms is 10-120 degree | times. When angle (theta) is less than 10 degrees, there exists a possibility that it will become difficult to mesh the fastening bracket mentioned later with the lip groove type steel 10. FIG. Angle (theta) is more suitable if it is 30 degree or more, and it is more suitable if it is 50 degree or more. On the other hand, when angle (theta) is larger than 120 degree | times, there exists a possibility that the fixing bracket mentioned later may fall out from the lip groove type steel 10 easily. Angle (theta) is more suitable if it is 90 degrees or less, and it is more suitable if it is 70 degrees or less. In the present embodiment, the angle θ is 60 degrees. Regarding the angle θ, the same applies to the case where the stationary notch 30 has a triangular shape.

Further, the length of each shorter side (31) in the side of the parallel pair of the trapezoidal notch which is formed in (L _2; Fig. 3) is preferably 1-20mm. If the length L ₂ is less than 1 mm, the pressing force applied from the fixing bracket described later may concentrate on the periphery of the side 31, and the lip groove steel 10 and the fixing bracket may be easily damaged. The length L ₂ is more appropriate if it is 2 mm or more, and more suitable if it is 2.5 mm or more. On the other hand, the length (L ₂₎ is greater than 20mm, there is a risk that too large dimensions of the individual notches. The length L ₂ is more appropriate if it is 10 mm or less, and more appropriate if it is 5 mm or less. In the present embodiment, the length L ₂ is 3 mm.

Moreover, it is preferable that the height (H; FIG. 3) of the trapezoid which each notch forms is 5-30 mm. When height H is less than 5 mm, there exists a possibility that the fixing bracket mentioned later may fall out from the lip groove type steel 10 easily. The height H is more appropriate if it is 8 mm or more, and more appropriate if it is 10 mm or more. On the other hand, when height H is larger than 30 mm, there exists a possibility that it may become difficult to mesh the fastening bracket mentioned later with the lip groove type steel 10. FIG. The height H is more suitable if it is 25 mm or less, and more suitable if it is 20 mm or less. In this embodiment, the height H is about 15 mm. Regarding the height H, the same applies to the case where the stationary notch 30 has a triangular shape.

Next, the fixing bracket which can be used suitably for the mounting method of the steel material of this invention is demonstrated. First, the first embodiment of the fixing bracket 40 will be described. 4 is a perspective view showing the fixing bracket 40 of the first embodiment. 5 is a front view showing the fixing bracket 40 of the first embodiment. 6 is a plan view showing the fixing bracket 40 of the first embodiment. Fig. 7 is a right side view showing the fixing bracket 40 of the first embodiment. 8 is a bottom view showing the fixing bracket 40 of the first embodiment.

As shown in Figs. 4 to 8, the fixing bracket 40 of the first embodiment has a substantially bar-shaped engagement portion 41 and a bolt portion 42 perpendicular to the center of the engagement portion 41 as viewed from the front. The engaging portion 41 is formed in a wedge shape when the side of the bolt portion 42 is vertically installed. In the fixing bracket 40 of the present embodiment, the engaging portions 41 are formed in a wedge shape by forming the surfaces 43 to 45 on the engaging portions 41. The shape of the cross section perpendicular to the longitudinal direction of the engaging portion 41 is a shape that can be engaged with the stationary notch 30 formed in the lip 20 of the rib groove steel 10 shown in FIGS. 1 to 3. . The width of the surface 45 in the short direction is equal to the length L ₂ of the side 31 or slightly shorter than the length L ₂ , and the surface 43 and the surface 44 are formed. The angle is equal to the angle θ (FIG. 3) formed by the pair of sides 32 and 33 or slightly smaller than the angle θ. For this reason, the surface 43 of the engaging part 41 is in contact with the side 32 of the stationary notch 30, the surface 44 is in contact with the side 33, and the surface 45 is the side 31. By contacting, the engaging portion 41 can be meshed with the stationary notch 30.

At this time, the diagonal length (L ₃ ; FIG. 8) at the bottom of the engaging portion 41 is equal to the width of the groove formed by the rib grooved steel (the interval between the outer walls 11, corresponding to L ₅ in FIG. 14). It is preferable to be equal or slightly shorter than the width of the groove. Thereby, it becomes possible to rotate the engaging part 41 in the groove | channel of the rib grooved steel 10, and it becomes possible to make it easy to attach the fixed bracket 40 to the rib grooved steel 10. As shown in FIG. In addition, when the fixing bracket 40 is engaged with the lip groove steel 10 and the bolt part is tightened, the center of the engaging part 41 is pulled by the bolt part 42, but the engaging part 41 may be curved. Even in this case, the bolt portion vertical mounting side of the engaging portion 41 is moved from the center so that the end surface of the lip end portion 23 of the lip groove steel can be brought into contact with the surfaces 43 to 45 of the engaging portion 41. You may form so that it may become high toward an edge part (in FIG. 5, so that a pair of surface 45 may become a V shape or a U shape).

Subsequently, a second embodiment of the fixing bracket 40 will be described. 9 is a perspective view showing the fixing bracket 40 of the second embodiment. Fig. 10 is a front view showing the fixing bracket 40 of the second embodiment. 11 is a plan view showing the fixing bracket 40 of the second embodiment. 12 is a right side view showing the fixing bracket 40 of the second embodiment. Fig. 13 is a bottom view showing the fixing bracket 40 of the second embodiment. FIG. 14 is a view showing a state in which the fixing bracket 40 of the second embodiment is rotated inside the groove of the rib groove steel 10. In FIG. 14, the rib grooved steel 10 is shown cut to the B-B cross section of FIG. 2 for convenience of description.

As shown in Fig. 13, the fixing bracket 40 of the second embodiment has one end (right side) of the engaging portion 41 formed of a plane α and a curved surface β continuous to the plane α. The other end (left side surface) is formed in the plane (alpha ') and the curved surface (beta') continuous to the plane (alpha '). Moreover, the plane (alpha) and the plane (alpha ') are arrange | positioned in parallel, and the one end part and the other end part of the engaging part 41 are arrange | positioned so that it may become rotation symmetry of 180 degree which makes the bolt part 42 a rotation axis. In addition, the curved surface (beta) and the curved surface (beta ') have the ground surface which passes through the midpoint of the line segment (QQ') which connects the bolt part 42 to the rotation axis (point Q in FIG. 13 and point Q ') ( It is a circumferential surface having an axis perpendicular to the flat surface). That is, the line connecting the point P and the point Q, and the line connecting the point P 'and the point Q' are each a straight line, connecting the point Q and the point R. The line to connect and the line connecting point Q 'and point R' are arc-shaped (point P, point P ', point Q, point Q', point) (R) and point R 'shall exist in the bottom face of the engaging part 41).

At this time, the diameter L ₄ ; FIG. 13 of the circumferential surface formed by the curved surface β and the curved surface β ′ coincides with the width L ₅ ; FIG. 14 of the groove of the rib groove steel 10 or the groove. The width P is slightly shorter than the width L ₅ , and the angle PQQ '(FIG. 13) is 90 degrees (or 90 degrees or more). As shown in Fig. 14, the engaging portion 41 can be rotated to the position of the broken line in the direction of the arrow. For this reason, the fixing bracket 40 is easy to attach to the rib groove steel 10. As shown in FIG. 14, it turns out that when the engaging part 41 rotates to the position of a broken line, the plane (alpha) and the plane (alpha ') will contact the outer wall 11. As shown in FIG. For this reason, the engaging part 41 is supported between the outer side walls 11 of the lip groove type steel 10, and it is possible to strongly support the fixing bracket 40 by the lip groove type steel 10. As shown in FIG. The curved surface β and the curved surface β 'need not be circumferential if the surface passes through the inner side of the circumferential surface.

Subsequently, a third embodiment of the fixing bracket 40 will be described. Fig. 15 is a perspective view showing the fixing bracket 40 of the third embodiment. 16 is a front view showing the fixing bracket 40 of the third embodiment. 17 is a plan view showing the fixing bracket 40 of the third embodiment. 18 is a right side view showing the fixing bracket 40 of the third embodiment. Fig. 19 is a bottom view showing the fixing bracket 40 of the third embodiment.

15-19, the lip contact part 46 is provided in the vicinity of the base part of the bolt part 42 in the fixing bracket 40 of 3rd Example. The lip contact part 46 has the plane (gamma) parallel to plane (alpha). Further, the distance L ₆ between the left side γ and the right side γ is the width L ₇ of the gap between the left lip end 23 and the right lip end 23. Same as 2) or slightly shorter than L ₇ . For this reason, when the engaging part 41 is engaged with the stationary notch 30, it becomes possible for the plane (gamma) to contact the outer wall of the lip end part 23, and the fixing bracket 40 will be made into the lip groove steel 10 It becomes possible to strongly support by this.

Next, the mounting method of the steel material of this invention is demonstrated. 20 is a perspective view showing a state before the bolt portion 42 passes through the bolt hole 53. FIG. 21 is a perspective view illustrating a state in which the rib grooved steel 10 is mounted on the angle steel 50 using a fixing bracket. Fig. 22 is a side view of the rib grooved steel 10 attached to the support 70 in the longitudinal direction of the rib grooved steel 10 by using the steel mounting method of the present invention. FIG. 23 is a cross-sectional view taken along the line C-C in FIG.

First, as shown in FIG. 20, after inserting the engaging portion 41 of the fixing bracket 40 into the groove of the rib groove steel 10, the bolt portion 42 is engaged while protruding outward from the opening of the groove. The portion 41 is engaged with the stationary notch 30. In the present embodiment, two fixing brackets 40 are used. Subsequently, the bolt portion 42 protruding outward from the opening of the groove passes through the bolt hole 53 provided in the angle steel 50. This order may be reversed, and the fixed bracket 40 may be attached in the state which attached the angle steel 150 to the rib groove steel 10 in some cases.

The angle steel 50 connected to the lip groove steel 10 used that the bolt hole 53 was provided in two places of the plate-shaped part 51. As shown in FIG. This not only makes it possible to strongly connect the angle steel 50 by the lip grooved steel 10, but also mounts the angle steel 50 over the plural lip grooved steels 10 extending in the longitudinal direction. It is also possible. The size and shape of the bolt hole 53 are not particularly limited as long as the bolt portion 42 can pass therethrough. However, in this embodiment, the bolt hole 42 has a clearance with the bolt portion 42 in consideration of ease of attachment of the fixing bracket 40. The clearance was secured at least 0.5-3mm. In addition, as shown in FIG. 20, the bolt hole 53 was made into a long thin shape (width 12mm, length 32mm), and it was made possible to adjust the installation position of the angle steel 50 continuously. In the angle steel 50, the plate portion 52 is usually connected to other bar steel such as grooved steel or H steel, but is bolted to connect other bar steel such as grooved steel or H steel. It may be provided in the plate portion 52.

Next, as shown in FIG. 21, the angle steel 50 is clamped with a lip and a nut by screwing and tightening the washer 61 and the nut 60 to the bolt part 42. As shown in FIG. At this time, the engaging portion of the fixing bracket 40 is deeply engaged with the stationary notch 30, and even when a large external force is applied to the fixing bracket 40 or the angle steel 50, the fixing bracket 40 or the angle steel 50 ) Is hard to be displaced with respect to the rib groove steel 10.

In addition, as shown in FIG. 22, when the lip groove type steel 10 is mounted on the strut 70 arranged in the vertical direction, the fixing bracket 40 is temporarily fixed to the angle steel 50 with the nut 60 slowed down. After arranging the rib grooved steel 10 at a desired position and tightening the nut 60 to fix the rib grooved steel 10 to the support 70, the rib grooved steel 10 can be easily mounted.

First, the plate-shaped part 52 of the angle steel 50 is fixed to the support | pillar 70 (1st process). At this time, the support | pillar 70 does not need to be arrange | positioned previously in a perpendicular direction, and may be laid down on a support, the ground, etc. so that it may be easy to work. In addition, although the angle steel 50 and the support | pillar 70 are fixed by welding in this embodiment, you may fix using a bolt etc. Next, the bolt portion 42 of the fixing bracket passes through the bolt hole provided in the plate portion 51 of the angle steel 50 (second step). Then, the nut 60 and the washer 61 are screwed to the position of the broken line of FIG. 22 (3rd process (temporary fixation process of a fixed bracket and angle steel)). Moreover, the engaging part 41 is rotated so that it may become parallel to the longitudinal direction of the lip groove type steel 10 (the direction which rotated the bolt part 42 by 90 degrees with the rotation axis rather than the state of FIG. 22) (4th process) .

Subsequently, the lip groove steel 10 is covered with the engaging portion 41 (fifth step). Further, the bolt portion 42 is pressed against the bottom side of the rib grooved steel 10 (upper side in FIG. 22), and rotated so as to be perpendicular to the longitudinal direction of the rib grooved steel 10 (the direction in FIG. 22), The engaging portion 41 is engaged with the stationary notch of the lip end 23 (sixth step (temporary fixation process of the lip groove steel 10 and the fixing bracket)). At this time, you may tighten the nut 60 rather than the position of the broken line of FIG. When the support | pillar 70 is also mounted in other places of the lip groove type steel 10, the part is made the same as 1st process-6th process.

Subsequently, the support post 70 is erected at a desired place in the state where the lip groove steel 10 is processed (seventh step). At this time, since the engaging portion 41 is in a state of being engaged to the stationary notch 30 provided at the lip end portion 23 to some extent, the position of the fixing bracket does not shift unless a significant impact is applied to the fixing bracket. When it is necessary to adjust the mounting position of the fixing bracket, while holding the bolt portion 42 on the bottom side of the lip groove steel (upper side in Fig. 22), the position of the lip groove steel 10 is staggered, and the engaging portion ( Change the notch to engage 41) (step 8). Finally, the nut 60 is screwed and screwed to the position of the solid line of FIG. 22 (ninth process (main fixation process)).

The order of the said 1st process-9th process is not limited to this, It can change suitably according to a work form. For example, you may arrange | position a 5th process and a 6th process immediately after a 7th process.

Claims (7)

Steel mounting method for mounting rib grooved steel to another steel using a fixed bracket, The rib grooved steel is formed by mounting a notch at the lip end edge, and the other steel material is formed with a bolt hole, and the fixing bracket is an engaging portion for engaging the mounted notch, and a bolt portion for penetrating the bolt hole. And engaging the engaging portion with the stationary notch of the rib grooved steel, and tightening the bolt portion through the bolt hole. The steel mounting method according to claim 1, wherein the other bolt is held between the bolt and the nut by screwing a nut to the bolt. 3. The steel mounting method according to claim 2, wherein the fixing bracket is temporarily fixed to the other steel material with the nut in a slow state, and the lip groove type steel is placed in a desired position, and then the nut is tightened to fix the steel. Rib-grooved steel that is mounted to other steel using fasteners, The lip consists of a lip base extending inwardly from the top of both outer walls of the lip grooved steel, and a lip end extending from the tip of the lip base toward the bottom of the lip grooved steel, and a stationary notch for engaging the fastening bracket Rib groove steel formed at the end. The rib grooved steel according to claim 4, wherein the individual notches constituting the stationary notch are approximately trapezoidal. The rib grooved steel according to claim 4 or 5, wherein individual notches constituting the stationary notch are provided at intervals of 5-50 mm.  As a fixed bracket used to mount rib grooved steel to other steel, A fastening bracket comprising a substantially bar-shaped engagement portion and a bolt portion vertically installed at the center of the engagement portion, wherein a portion contacting at least the lip end portion of the bolt portion vertical installation side of the engagement portion is formed in a wedge shape.

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