JP3896537B2 - Hanging tool for construction, construction jig and construction method thereof - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hanging bracket for construction, a construction jig for the construction, and a construction method thereof. More specifically, a roof material or a wall material made of a metal folded plate material through an H-shaped steel or the like in a building structure is extremely used. Easy-to-construct suspension brackets for construction, construction jigs that can be constructed accurately and firmly with this metal folded plate material, and easy to use, and roof and wall materials made of metal folded plate material The present invention relates to a construction method that allows simple construction.
[0002]
[Prior art]
Conventionally, in a building structure, for example, in order to build a roof made of a metal folded plate material through its H-shaped steel, for example, a construction method shown in FIG. 11 is employed. In this construction method, as shown in the figure, a substantially U-shaped gold concrete 110 is sandwiched and fixed on a flange 101 of an H-shaped steel 100 in a building structure, and a screw washer 112 is provided on a lower plate 111 in a hanging manner. 120 and felt packing 121 are interposed, threaded holes 127 provided in the top surface 126 of the metal folded plate 125 are passed through, and a nut 123 is tightened to the lower end of the screw rod 112 with a plain washer 122 interposed therebetween. The roof made of a plurality of metal folded plate materials 125 is installed on the H-shaped steel 100 by successively attaching the adjacent top surfaces 126a... (See Utility Model Registration No. 3013802). ). In addition, the raw material of the gold concrete 110 is comprised with a certain amount of elastic material, The opening part 113 is comprised so that it may open a little.
[0003]
In addition, a metal fitting based on a substantially U-shaped gold concrete based on the same technical idea as the utility model by the same right holder is disclosed as design registration (design registration No. 734823, similarity 1 of 734823, No. 737866).
[Problems to be solved by the invention]
[0004]
In the case of registration of the above-mentioned utility model, it is necessary to perform marking for positioning on the mountain pitch of the roofing material, which has been a troublesome task. Further, in order to attach the gold concrete to the flange portion of the H-shaped steel, the opening portion is sandwiched, and therefore the gold concrete cannot be sandwiched without opening the opening portion due to the thickness of the flange portion. It was necessary to prepare a plurality of gold concretes having different opening dimensions.
[0005]
Furthermore, since the mounting of the roofing material is based on the lower surface of the H-shaped steel, distortion and waviness directly affect the positioning, and it is necessary to make fine adjustments when attaching the roofing material. There were issues such as. Also, this gold concrete cannot be used when straddling a beam, and it was necessary to extend the beam when using a rose.
[0006]
On the other hand, in the case of design registration, there are the same problems as described above, and the need to solve these problems still remains.
[0007]
[Problems to be solved by the invention]
The present invention has been made in order to solve the above-mentioned problems, and the object of the present invention is to construct a roof material or wall material made of a metal folded plate material very easily through an H-shaped steel in a building structure. As a construction jig to be used when constructing roofing materials and wall materials by attaching architectural suspension brackets and building suspension brackets, metal folded plate materials can be constructed accurately and firmly, and their usage is also Another object of the present invention is to provide a simple jig and a construction method capable of easily constructing a roof material or a wall material made of a metal folded plate material.
[0008]
[Means for Solving the Problems]
The invention described in claim 1 according to the present invention is a dish-like body made of a long metal material composed of left and right collars, hanging parts, and a flat bottom part, and is equidistant along the longitudinal direction of the bottom part. A plurality of sword tip bolts having a sharp tip at the tip are formed in a hanging shape downward, and a plurality of positioning / drain holes are provided at equal intervals on the bottom.
[0009]
The invention described in claim 2 according to the present invention is characterized in that a marking indicating 1/2 of the length in the longitudinal direction of the dish-like body is provided on the lower surface of at least one flange.
[0010]
The invention described in claim 3 according to the present invention is a belt-like body having wide portions at both the left and right ends and the central portion as viewed from above, and a plurality of small protrusions are formed on the upper surface of each wide portion. The narrow protrusions following the wide parts at the left and right ends are formed with equally spaced positioning projections and bolt escape holes, respectively, and a handle is provided on the lower surface of the strip.
[0011]
The invention according to claim 4 according to the present invention is directed to a mounting surface such as an H-shaped steel for constructing a metal folded plate material, a horizontal marking line along the longitudinal center, a marking line indicating a start position, and a longitudinal direction. A step of drawing a horizontal inking line along the direction, a step of arranging a first construction hanging metal fitting along the two inking lines and welding to the mounting surface, and a subsequent second building A step of arranging the hanging bracket for the construction along the longitudinal inking line on the first right end side, and a reference point between the ends of the first and second adjacent hanging brackets for construction A step of abutting a substantially central portion of the upper surface of the construction jig; first and second positioning and draining holes for the positioning jigs of the construction jig; and bolt relief holes of the construction jig Are inserted through the left and right sword tip bolts of the first and second, respectively, and the second After confirming that it is along the center line in the longitudinal direction, the step of temporarily fixing and welding the second construction hanging bracket, and the second construction hanging bracket by removing the construction jig And a step of constructing a metal folded plate material on a sword tip bolt of each construction hanging metal fitting through a washer, packing, flat washer, nut or the like.
[0012]
In the invention according to claim 5 of the present invention, a horizontal marking line along the longitudinal center and a marking line indicating the start position are provided on a mounting surface such as an H-shaped steel for constructing a metal folded plate material. The drawing step is characterized in that a horizontal marking line along the longitudinal central portion used for the second and subsequent architectural hanging metal fittings is unnecessary without being drawn.
[0013]
[Action]
According to the architectural hanging bracket according to the present invention, a mountain washer or the like in a screw hole provided at equal intervals on the top surface of the metal folded plate material via a sword tip bolt formed at equal intervals on the architectural hanging bracket. Therefore, it is possible to easily construct a roof material or a wall material made of a metal folded plate material on a mounting surface such as an H-shaped steel in a building structure. In addition, even if rainwater enters the architecturally-suspended metal fittings with a plate-like body, a plurality of positioning and drainage holes are provided at the bottom, so that rainwater will not accumulate, Prevents metal corruption.
[0014]
According to the construction jig according to the present invention, the construction jig has positioning projections and bolt relief holes formed at equal intervals, and at least the second marking line is attached to the mounting surface. Since it is drawn at the center in the longitudinal direction, the second and subsequent construction metal fittings can be accurately applied to the mounting surface by using the construction jig. Also, the small protrusions on the construction jig can prevent the horizontal displacement of the construction hanging metal fittings, and the construction jig is provided with a narrow portion, which reduces the weight of the construction jig and the construction suspension during construction. An operator can visually check whether temporary fixing welding to the lowering bracket can be performed easily and whether the mounting position of the hanging bracket for construction by the narrow part extends accurately and straight, so that an accurate metal folded plate material can be constructed. it can.
[0015]
According to the construction method for building according to the present invention, the first hanging bracket for building is accurately drawn on the mounting surface in the process of drawing the inking line along the longitudinal center and the inking line indicating the start position. Can stick. The second is a process such as inserting the positioning protrusion, the positioning drainage hole, the bolt escape hole, and the sword tip bolt into the first and second adjacent to the inking line along the longitudinal center. Architectural suspension fittings can likewise be accurately secured to the mounting surface. In addition, even if the third and subsequent lines do not have a marking line along the central portion in the longitudinal direction, the construction hanging bracket can be accurately fixed to the mounting surface in the same manner by using the construction jig.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a first example of a hanging bracket for building according to the present invention, FIG. 2 is a perspective view showing a back surface of the first example, and FIG. 3 is a perspective view showing a use state of the first example. 4 is a perspective view showing a second example of a hanging metal fitting for construction, FIG. 5 is a cross-sectional view of an essential part showing a use state of the second example, and FIG. 6 is a construction jig according to the present invention. 7 is a perspective view showing the first example, FIGS. 7A to 7E are explanatory views sequentially showing the use state of the first example, and FIG. 8 is a partial cross-sectional explanatory view showing the state of FIG. FIG. 9 is a perspective view sequentially illustrating a second example of the construction jig, and FIGS. 10A to 10E are explanatory diagrams sequentially illustrating the usage state of the second example.
[0017]
First, the construction hanging bracket 1 will be described. As shown in FIGS. 1 to 3, the hanging bracket 1 for building is formed of a dish-like body 2 made of a long metal material having a predetermined length. That is, the dish-like body 2 is formed in a dish-like body 2 having a cross-sectional shape including left and right flange parts 20, 20, hanging parts 21, 21 and a flat bottom part 22, and the tip of the bottom part 22 is a sharp part 23. Three bolts 24 (hereinafter referred to as sword-tip bolts) are provided in a hanging manner at equal intervals with the sharpened portion 23 facing downward. Further, four positioning and drainage holes 25 and 26 are provided at equal intervals from both ends of the bottom portion 22. Of these, the drainage holes 26 at both ends are formed in a small shape, but have the same shape. But of course.
[0018]
The material of the dish-like body 2 may be a metal material, and for example, a metal material such as a galvanized steel plate, a highly resistant rolled steel material, a colored zinc iron plate, a hot-dip aluminized steel plate, and a painted stainless steel plate is preferable.
[0019]
Four drain holes 25, 26 are formed and are preferably provided at equal intervals as shown in the drawing. In particular, the holes of the small drain holes 26 at both ends are not necessarily circular holes. It is not limited. In addition, as a mark indicating the central portion of the dish-like body 2, the marking 27 is engraved on the lower surface 201 of the flange portion 20, but it is not necessarily limited to the lower surface 201 of the flange portion 20, and is not illustrated. The engraving 27 may be performed continuously from the lower surface 201 of the portion 20 to the upper surface 200.
[0020]
The usage method of the said construction | assembly suspension metal fitting 1 is demonstrated. As shown in FIG. 3, a plurality of architectural hanging brackets 1 are attached to the lower surface 31 of the flange portion 30 below the H-shaped steel 3 according to the size of the roof constructed on the H-shaped steel 3 and the upper surface 200 and the flange. The lower surface 31 of the part 30 is brought into contact, and a plurality of welds 32, 32,... Are applied to predetermined portions of the upper surface 200 of the flange part 20 and the lower surface 31 of the flange part 30 to flange the architectural hanging bracket 1 The metal folded plate material 5 is attached by being fixed to the portion 30.
[0021]
In detail, the screw hole 55 (illustration omitted) provided in the top surface 50 of the metal folding plate material 5 was interposed through the hill washer 53 and the felt packing 54 which illustrated in the sword-tip bolt 24 of the hanging bracket 1 for construction. Then, a nut 56 is fastened to the lower end of the sword tip bolt 24 with a plain washer 56 interposed therebetween, and the sword tip bolt 24 is similarly fastened to the adjacent top surfaces 50, 50,. A metal folded plate material 5 is constructed through a plurality of architectural hanging fittings 1 fixed to the lower surface 31 of the flange portion 30 of the shape steel 3. The screw holes 55 (not shown) of the top surface 50 are formed in advance on the top surfaces 50 of the metal folded plate material 5 in advance, and the holes 55 are formed at a predetermined mounting pitch.
[0022]
This construction hanging metal fitting 1 is made to correspond to the roof material 5 having a metal folded plate structure consisting of three mountains called 88 type, and the roof material includes a top surface 50, a bottom surface 51, and a roof material 5 as shown in the figure. An inclined surface 52 is formed.
[0023]
4 and 5 is different from the above-described architectural suspension fitting 1 in the number of sword tip bolts 24. In this example, two sword tip bolts 24 are provided on the plate-like body 2. It is provided at equal intervals. Also, three positioning / drain holes 25 are formed, and these drain holes 25 are preferably provided at equal intervals.
[0024]
Further, as a mark indicating the central portion of the dish-like body 2, a stamp 27 (not shown) is carved on the lower surface 201 of the flange portion 20 in the same manner as described above. It is not limited to 201, and it may be engraved 27 continuously from the lower surface 201 of the collar 20 to the upper surface 200.
[0025]
This architectural hanging metal fitting 10 is a roof material used for a metal folded plate material 5a having a folded plate structure consisting of two ridges commonly called 150 type. As shown in FIG. 5, after a thread washer 53 and a felt packing 54 are interposed in the sword tip bolt 24 and passed through a screw hole 55 provided in the top surface 50 of the metal folded plate material 5 a, a plain washer 56 is interposed. A nut 57 is fastened to the lower end portion of the sword tip bolt 24, and the architectural hanging bracket 10 is fixed to the lower surface 31 of the flange portion 30 of the H-section steel 3.
[0026]
Next, the construction jig 4 will be described. The construction jig 4 shown in FIG. 6 can be applied to the roof material 5 having the above-described 88-type metal folded plate configuration. That is, when viewed from the plane, the left and right end portions and the central portion are formed of a band-like body 43 having a predetermined thickness provided with wide portions 41 and 42, and a plurality of small protrusions 44 are formed on the upper surfaces of the left and right and central wide portions 41 and 42. 44 are provided, and positioning protrusions 46 are provided on the upper surface of the narrow portion 45 located in the vicinity of the left and right wide portions 41, 41, respectively. Also, bolt relief holes 47, 47 through which the sword bolt 24 of the construction hanging bracket 1 is inserted are provided in the vicinity of the left and right narrow portions 45, 45, respectively. Reference numeral 48 denotes a handle provided at the center of the lower surface. Nuts 480 are fastened to the screw portions at both ends of the handle 48, and the nut 480 is inserted into the small hole 49 to provide the handle 48. ing.
[0027]
Furthermore, the construction method using this construction jig 4 will be described with reference to FIGS. For example, on the lower surface 31 of the flange portion 30 of the H-section steel 3 that constructs the target roofing material, the inking line 300 (FIG. 7) extending in the lateral direction along the longitudinal center portion of the architectural hanging bracket 1. (B) and a vertical marking line 301 (b in FIG. 7) showing the start position of the architectural hanging metal fitting 1 are shown. It should be noted that the order of drawing the inking lines 300 and 301 may be reversed. In addition, what is necessary is just to make the end part of the hanging bracket 1 for construction, or the marking 27 of this hanging bracket 1 for construction coincide with the vertical marking line 301 at this start position.
[0028]
Then, with the inking lines 300 and 301 as starting positions, the hanging metal fitting 1 for construction is aligned with the inking lines 300 and 301 along the inking lines 300 and 301 with the left end and the center thereof aligned with the inking lines 300 and 301. The upper surface 200 of the flange portions 20 and 20 is brought into close contact with the lower surface 31 of the flange portion 30, and welding 32, 32,... 7) step).
[0029]
Subsequently, an operator holds the next architectural hanging metal fitting 1a so that the left end portion is arranged on the right side of the fixed architectural hanging metal fitting 1, and the upper surfaces 200 of the flange parts 20 and 20 are arranged. The lower surface 31 of the flange part 30 is brought into contact. Then, the adjacent adjacent portion 28 of the left and right construction hanging metal fittings 1, 1 a and the substantially central portion of the construction jig 4 held by the operator are matched to construct the upper surface of the construction jig 4. The front end portions of the positioning protrusions 46 and 46 are inserted into the left and right positioning / drainage holes 25 and 25 of the construction hanging fittings 1 and 1a, respectively. At the same time, the sword bolts 24, 24 of the architectural hanging brackets 1, 1a are inserted into the left and right bolt relief holes 47, 47 so that the mounting position of the second architectural hanging bracket 1a is the ink marking line 301. The operator visually confirms whether or not the positioning is accurately performed.
[0030]
Next, when the operator can confirm that the positioning is accurate, the step of performing temporary fixing welds 32a and 32a (d in FIG. 7) on the flange portion 20 exposed from the construction jig 4 is performed. is there. Then, after removing the construction metal fitting 4 from the construction hanging metal fittings 1 and 1a, a plurality of accurate welds 32 and 32 are applied to the portion remaining on the second construction metal fitting 1a (e in FIG. 7). Then, by repeating the same operation below, the target architectural hanging brackets 1, 1 a,... Can be fixed to the flange portion 30 of the H-section steel 3. The inking line 301 is indispensable for the first and second construction hanging metal fittings 1 and 1a, but is not necessarily required for the third and subsequent pieces, and its use is optional.
[0031]
In this way, after a plurality of target architectural hanging brackets 1, 1 a,... Are accurately fixed to the mounting surface such as the flange 30 of the H-shaped steel 3, the architectural hanging brackets 1, 1 a. The projecting sword tip bolts 24, 24,... Are passed through screw holes 55 formed in the top surfaces 50 of the metal folded plate material 5, respectively, and then a washer 53, a felt packing 54, a flat washer 56, and a nut. The metal folded plate material 5 is constructed by interposing 57 or the like.
[0032]
Since the construction jig 40 shown in FIG. 9 has basically the same configuration as the construction jig 4 shown in FIG. 6, the same configuration is given the same reference numeral as that shown in FIG. 6, and a different configuration will be described. . As described above, the construction jig 40 is applied to the metal folded plate material 5a having a folded plate configuration composed of two peaks called the 150 type. That is, the positioning protrusions 460 and 460 are respectively provided on the left and right narrow portions 45 and 45 located in the vicinity of both ends of the wide portion 42 in the central portion, and unlike the construction jig 4, Bolt escape holes 47 and 47 are provided in the vicinity.
[0033]
Next, the construction method used by the construction jig 40 will be described. Since this method has basically the same configuration as the construction jig 4 described above, the same configuration is similarly denoted by the same reference numeral and the configuration will be described. In order to construct a predetermined metal folded plate material 5a, for example, on the lower surface 31 of the flange portion 30 of the H-section steel 3, a vertical marking line 300 indicating the start positions of the plurality of architectural hanging brackets 10 is provided. (A in FIG. 10) and a marking line 301 (b in FIG. 10) extending in the lateral direction along the central longitudinal direction are provided.
[0034]
The upper end 200 of the flanges 20 and 20 is in close contact with the lower surface 31 of the flange portion 30 with the left end portion and the center portion of the hanging bracket 10 for construction aligned along the ink marking lines 300 and 301. The construction | assembly suspension metal fitting 10 which gave welding 32,32, ... is fixed to several places of this contact part (c of FIG. 10).
[0035]
The upper surface 200 of the flange portions 20 and 20 and the lower surface 31 of the flange portion 30 are placed so that the left end portion of the next structural hanging bracket 10a is arranged on the right side of the fixed structural hanging bracket 10. Make contact. Adjacent portions of the left and right architectural hanging metal fittings 10 and 10a are aligned with the substantially central portion of the construction jig 40, and the construction hanging metal fittings 10 and 10a adjacent to the upper surface of the construction jig 40 are connected. The top ends of the positioning protrusions 46 and 46 are inserted into the left and right positioning and drainage holes 25 and 25 of the architectural hanging metal fittings 10 and 10a, respectively. At the same time, the left and right bolt relief holes 47 and 47 are respectively inserted into the sword bolts 24 and 24 of the architectural hanging brackets 10 and 10a so that the mounting position of the next second architectural hanging bracket 10 is marked. After confirming that it has been positioned accurately along the line 301, the weld 32a for temporary fixing to the flange portions 20 and 20 of the next construction hanging bracket 10a exposed from the construction jig 40, 32a (d in FIG. 10) is provided.
[0036]
Thereafter, the construction jig 40 is removed from the architectural hanging metal fittings 10 and 10a, and a plurality of accurate welds 32 and 32 (e in FIG. 10) are applied to the remaining portion of the second architectural hanging metal fitting 10a. Through the steps, the following similar operations are repeated to fix the architectural hanging brackets 10, 10a,... To the flange portion 30 of the H-section steel 3, and are made of metal in the same manner as the architectural hanging brackets 1, 1a. A step of constructing the folded plate material 5a is provided.
[0037]
By using the construction jigs 4 and 40 in this way, it is a construction method in which the construction of roof materials and wall materials made of metal folded plate materials can be constructed extremely easily.
[0038]
【The invention's effect】
Since this invention is the said structure, there exist the following effects.
According to the architectural hanging bracket according to the present invention, the sword tip bolts formed at equal intervals on the architectural hanging bracket, through the screw holes provided on the top surface of the roofing material or wall material of the metal folded plate material. Since it can be fastened with a mountain washer or packing material while maintaining airtightness, it is easy to construct a roof material or wall material on the mounting surface of an H-shaped steel in a building structure.
[0039]
Since the bottom of the architectural hanging metal fitting according to the present invention is provided with a plurality of positioning and drainage holes, it will not accumulate even if rainwater enters, and prevent the architectural hanging metal fitting from decaying. Can do.
[0040]
According to the construction jig according to the present invention, positioning jigs and bolt relief holes are formed at equal intervals on the construction jig, and at least the second marking line is in the longitudinal direction of the mounting surface. The construction suspension fitting can be accurately attached to the attachment surface by using the construction jig for the third and subsequent constructions as well as the second construction suspension fitting.
[0041]
In addition, the small protrusions on the construction jig can prevent the horizontal displacement of the hanging metal fittings for construction, so by providing a narrow section on the construction jig, the construction jig can be reduced in weight and suspended during construction. Temporary fastening welding can be easily performed to the lowering metal fittings, and the operator can visually check whether the mounting position of the hanging metal fittings for construction by the narrow part is extending straight straight, so that an accurate metal folded plate material can be constructed. .
[0042]
According to the construction method for building according to the present invention, the first construction hanging metal fitting is provided with a process of drawing a marking line along the longitudinal center and a marking line indicating the start position. The hanging bracket for building can be fixed accurately.
[0043]
In addition, the second is a process in which the positioning protrusion, the positioning drainage hole, the bolt relief hole, and the sword tip bolt are inserted into the first and second adjacent to the inking line along the central portion in the longitudinal direction. Thus, the architectural hanging bracket can be accurately fixed to the mounting surface as well. Further, in the third and subsequent lines, the hanging bracket for construction can be accurately fixed to the mounting surface in the same manner as in the process of using the construction jig even if there is no marking line along the central portion in the longitudinal direction.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a first example of an architectural hanging metal fitting according to the present invention.
FIG. 2 is a perspective view showing a back surface of the first example.
FIG. 3 is a perspective view showing a usage state of the first example.
FIG. 4 is a perspective view showing a second example of a building hanging metal fitting.
FIG. 5 is a cross-sectional view of a main part showing a usage state of the second example.
FIG. 6 is a perspective view showing a first example of a construction jig according to the present invention.
FIGS. 7A to 7E are explanatory diagrams sequentially showing usage states of the first example. FIGS.
8 is a partial cross-sectional explanatory view showing the state of FIG.
FIG. 9 is a perspective view sequentially illustrating a second example of the construction jig.
FIGS. 10A to 10E are explanatory diagrams sequentially showing usage states of the second example. FIGS.
FIG. 11 is a perspective view showing a conventional construction method.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Construction hanging metal fitting 4 Construction jig 20 Saddle part 21 Hanging part 22 Bottom part 23 Pointed part 24 Blade tip bolts 25 and 26

Claims (5)

A dish-like body made of a long metal material composed of left and right buttocks and hanging parts and a flat bottom part,
A plurality of sword bolts with sharp tips at equal intervals along the longitudinal direction of the bottom are formed in a hanging shape downward.
A suspension metal fitting for building, wherein a plurality of positioning and drainage holes are provided at equal intervals on the bottom. On the bottom surface of at least one heel
The hanging bracket for construction according to claim 1, wherein a mark indicating 1/2 of the length in the longitudinal direction of the dish-like body is provided. A band-shaped body provided with wide portions at both the left and right ends and the central portion when viewed from the plane,
A plurality of small protrusions are formed on the upper surface of each wide part, and positioning protrusions and bolt escape holes are formed at equal intervals in the narrow part following the wide part on both the left and right ends,
And the construction jig characterized by the handle being provided in the lower surface of the said strip | belt-shaped body. Drawing a horizontal marking line along the longitudinal center and a marking line indicating the start position on the mounting surface of the H-shaped steel or the like that constructs the metal folded plate material;
A step of arranging the first architectural hanging metal fitting according to claim 1 or 2 and welding it to the mounting surface along the two marking lines;
A step of disposing in and along the lower bracket hanging for the construction of the two eyes following the longitudinal direction of the marking line on the right end of the first run,
A reference point between the ends of the building hanging bracket and one first and two second adjacent, the step of abutting the substantially central portion of the upper surface of the the building construction jig according to claim 3 ,
And the positioning combined water drain hole of the first run and two eyes each positioning projection of the building construction jig, the bolts escape hole of the building construction jig 1 -th and two eyes of the left and right of each point of a sword bolts A process of inserting each,
On the two eyes and it was confirmed that along the marking lines of the longitudinal center portion, and a lower bracket hanging for the construction of the two first step of tacking welding,
A step of welding the lower bracket hanging for the construction of the two eyes to remove the building construction jig to the mounting surface,
A construction method comprising the steps of: constructing a metal folded plate material on a sword tip bolt of each of the above-described suspension metal fittings via a mountain washer, packing, plain washer, nut, or the like. A process of drawing a horizontal marking line along the longitudinal center and a marking line indicating the start position on the mounting surface of the H-shaped steel that constructs the metal folded plate material,
5. The construction method according to claim 4, wherein a horizontal marking line along a longitudinal center portion used for the second and subsequent architectural hanging metal fittings is unnecessary without being drawn.

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