Adhesion method, ceiling structure and ceiling construction method

Abstract

To provide a bonding method, a ceiling structure and a ceiling construction method allowing the amount of material to be less to perform construction and management easily, with a reduced cost.SOLUTION: A bonding method is to bond a support member 3, which is suspended between steel beams 2 adjacent to each other to support ceiling material, on a steel beam 2 with a bonding member 4. The bonding member 4 has: a bolt 41; a nut 42 fastened on the bolt 41; and a bonding part 43 bonding the bolt 41 on an upper surface 22 of a lower side flange 21 of the steel beam 2. The bonding method comprises: a bonding member bonding step of bonding the bolt 41 to the upper surface of the lower side flange 21 with the bonding part 43; and a support member fixation step of fastening the nut 42 to the bolt 41 after inserting the bolt 41 into a hole 34 (support member hole part) provided in the support member 3.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an adhesive construction method, a ceiling structure, and a ceiling construction method. Regarding. [Background technology]

[0002] In ceiling construction, methods that are often used include installing inserts in floor slabs and suspending ceiling materials (see, for example, Patent Document 1), and attaching suspension bolts to steel beams and suspending ceiling materials.When renovating ceilings in existing buildings, methods that are used include installing ceiling inserts in existing floor slabs and suspending ceiling materials, and welding or bolting suspension bolts to existing steel beams and suspending ceiling materials. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2000-302371 Summary of the Invention [Problem to be solved by the invention]

[0004] However, when inserts are provided in floor slabs or suspension bolts are attached to steel beams, the amount of material required is large, and construction and management are time-consuming and costly. Furthermore, when installing inserts on a ceiling directly below a slab with a waterproof layer on the floor directly above, there is a risk of damaging the waterproof layer. When welding suspension bolts to steel beams, fire prevention measures are required. When bolting suspension bolts to steel beams, there is a risk that the strength of the steel beams will decrease due to the bolt holes. These many restrictions make ceiling installation difficult.

[0005] The present invention has been made in consideration of the above-mentioned problems, and aims to provide an adhesive construction method, ceiling structure, and ceiling construction method that can reduce the amount of material used, make construction and management easier, and also reduce costs. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the adhesive construction method of the present invention is an adhesive construction method in which a support member that is erected between adjacent steel beams and supports a ceiling material is adhered to the steel beams with an adhesive member, wherein the adhesive member has a bolt, a nut fastened to the bolt, and an adhesive portion that adheres the bolt to the upper surface of the flange of the steel beam, and the method comprises an adhesive member adhering step of adhering the bolt to the upper surface of the flange with the adhesive portion, and a support member fixing step of inserting the bolt into a support member hole provided in the support member and fastening the nut to the bolt.

[0007] In order to achieve the above-mentioned object, the ceiling structure of the present invention comprises a support member that is erected between adjacent steel beams and supports a ceiling material, and an adhesive member that adheres the support member to the steel beam, the adhesive member comprising a bolt that is inserted into a support member hole provided in the support member, a nut that is fastened to the bolt, and an adhesive portion that adheres the bolt to the upper surface of the flange of the steel beam.

[0008] In order to achieve the above-mentioned object, the ceiling construction method of the present invention comprises a support member erection process in which a support member is erected between adjacent steel beams and the support member is adhered to the steel beams with an adhesive member, and a ceiling material attachment process in which a ceiling material is attached to the support member, wherein the adhesive member comprises a bolt, a nut fastened to the bolt, and an adhesive portion that adheres the bolt to the upper surface of the flange of the steel beam, and the support member erection process comprises an adhesive member attachment process in which the bolt is adhered to the upper surface of the flange with the adhesive portion, and a support member fixing process in which the bolt is inserted into a support member hole portion provided in the support member and the nut is fastened to the bolt.

[0009] In this invention, the support members that are erected between adjacent steel beams and support the ceiling material are attached to the steel beams with adhesive members, so the support members can be easily erected between adjacent steel beams. Then, since the ceiling material can be installed on these support members, the amount of material can be reduced, making construction and management easier and reducing costs compared to ceiling construction that requires inserts in the floor slab or hanging bolts attached to the steel beams. Furthermore, since no components are attached to the slab, even when work is carried out on the ceiling directly below a slab that has a waterproof layer on the floor directly above, the waterproof layer will not be damaged. Furthermore, when fixing the adhesive member to the steel beams, there is no need to perform welding or to make holes in the steel beams, so the ceiling can be easily constructed.

[0010] In addition, in the adhesive method according to the present invention, The aforementioned The adhesive member bonding process is performed using an adhesive jig for simultaneously bonding the plurality of adhesive members to the upper surface of the flange at a predetermined pitch in the longitudinal direction of the flange, the adhesive jig having a plurality of adhesive jig holes formed at the predetermined pitch, through which the bolts can be inserted, and configured to be able to fix each of the bolts inserted into the plurality of adhesive jig holes, the adhesive member bonding process including an adhesive member bonding jig fixing process in which the bolts of each of the plurality of adhesive members are inserted into the adhesive jig hole and fixed to the adhesive jig, a multiple adhesive member bonding process in which the adhesive jig to which the plurality of adhesive members are fixed is placed on the upper surface of the flange and the adhesive portion of each of the plurality of adhesive members is bonded to the upper surface of the flange, and an adhesive jig removing process in which the adhesive jig is removed from the plurality of adhesive members bonded to the upper surface of the flange.

[0011] With this configuration, multiple adhesive members can be simultaneously bonded to the flanges of the steel beam, thereby improving work efficiency.

[0012] In addition, in the adhesive method according to the present invention, before The process of bonding the plurality of adhesive members The bonding jig to which the plurality of bonding members are fixed is placed on the upper surface of the flange.Thereafter, the bonding jig is pressed against the flange to bond the bonding portions of the plurality of bonding members to the upper surface of the flange. R .

[0013] With this configuration, multiple adhesive members can be pressed together at the same time using the bonding jig, which improves work efficiency compared to when multiple adhesive members are individually clamped and pressed together using clamps or the like.

[0014] In addition, in the adhesive construction method according to the present invention, the adhesive portion may have a steel plate having the bolt joined to one surface thereof, and an adhesive sheet attached to the other surface of the steel plate and adhered to the upper surface of the flange.

[0015] With this configuration, the adhesive member can be easily adhered to the upper surface of the flange of the steel beam. [Effects of the Invention]

[0016] According to the present invention, the amount of material can be reduced, making construction and management easier and reducing costs. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a diagram showing a ceiling structure according to an embodiment of the present invention; [Figure 2] FIG. 2 is a cross-sectional view taken along line AA in FIG. [Figure 3] 10A to 10C are diagrams illustrating a bonding member bonding step. [Figure 4] FIG. 4 is a cross-sectional view taken along line BB in FIG. 3. [Figure 5] 1 is a table showing parameters of element tests for confirming the structural performance of adhesive construction methods, ceiling structures, and ceiling construction methods. [Figure 6] FIG. 1 is a front view of a test specimen for a bending test. [Figure 7] FIG. 1 is a top view of a test specimen for a bending test. [Figure 8] This is a specimen for bending tests with an M16 bolt attached. [Figure 9] FIG. 1 is a top view of a test specimen for a tensile test. [Figure 10] FIG. 1 is a front view of a test specimen for a tensile test. [Figure 11] FIG. 1 is a side view of a test specimen for a tensile test. [Figure 12] FIG. [Figure 13] FIG. 2 is a side view of the test device. [Figure 14] This is a top view of the test specimen (details of the actual device) used in the tensile test. [Figure 15] FIG. 1 is a front view of a test specimen (details of the actual device) for a tensile test. [Figure 16] FIG. 1 is a side view of a test specimen (details of the actual device) for a tensile test. [Figure 17] 10 is a table showing experimental results of a bending test. [Figure 18] 1 is a table showing experimental results of a tensile test. DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, an adhesive construction method, a ceiling structure, and a ceiling construction method according to an embodiment of the present invention will be described with reference to FIGS. The adhesive construction method, ceiling structure 1, and ceiling construction method according to this embodiment are employed when constructing a ceiling in new construction or renovation work. The ceiling structure 1 of this embodiment shown in Figures 1 and 2 has a support member 3 that is installed between steel beams 2, 2 arranged in parallel at a distance and supports the ceiling material, and an adhesive member 4 that fixes the support member 3 to the steel beams 2.

[0019] The support member 3 is a member for providing ceiling support such as suspension bolts, joist supports, and joists, and a member to which ceiling materials can be attached. The support member 3 is a long member that is erected between two parallel steel beams 2, 2 in a direction perpendicular to the steel beam 2. The support member 3 is fixed to the lower flange 21 of each of the two steel beams 2, 2. A plurality of support members 3 are provided at intervals along the length of the steel beam 2. In this embodiment, the support member 3 is a steel channel material with a C-shaped cross section. The support member 3 is fixed to the steel beam 2 with the C-shaped cross section opening in the length direction of the steel beam 2. The lower portion of the support member 3 is the lower plate portion 31, the upper portion is the upper plate portion 32, and the portion between the upper plate portion 32 and the lower plate portion 31 is the vertical plate portion 33. Both ends of the support member 3 in the length direction are fixed to the lower flange 21 of the steel beam 2 via adhesive members 4. Holes 34 (support member holes) through which bolts 41 of the adhesive members 4 are inserted are formed at both ends of the lower plate portion 31 of the support member 3.

[0020] The adhesive member 4 is fixed to the upper surface 22 of the lower flange 21 of the steel beam 2. As shown in Fig. 2, the adhesive member 4 has a bolt 41, a nut 42 fastened to the bolt 41, and an adhesive portion 43 that adheres the bolt 41 to the upper surface 22 of the lower flange 21. The adhesive portion 43 has a flat steel plate 44 and an adhesive sheet 45 provided on one surface of the steel plate 44 . The bolt 41 is joined by welding or the like to the other surface (the surface on which the adhesive sheet 45 is not provided) of the steel plate 44. The axis of the bolt 41 is perpendicular to the surface of the steel plate 44. The adhesive member 4 is placed on the upper surface 22 of the lower flange 21 with the bolt 41 on the upper side of the adhesive portion 43 and the adhesive sheet 45 facing downward. The adhesive member 4 is adhered to the steel beam 2 by adhering the adhesive sheet 45 to the upper surface 22 of the lower flange 21.

[0021] The bolt 41 of the adhesive member 4 adhered to the upper surface 22 of the lower flange 21 is inserted from below into the hole 34 of the support member 3. The bolt 41 of the adhesive member 4 fixed to the lower flange 21 of one steel beam 2 is inserted into the hole 34 formed at one end of the support member 3. The bolt 41 of the adhesive member 4 fixed to the lower flange 21 of the other steel beam 2 is inserted into the hole 34 formed at the other end of the support member 3. A nut 42 is fastened to the bolt 41 inserted into the hole 34 of the support member 3, and the bolt 41 and nut 42 are fixed to the lower plate portion 31 of the support member 3, thereby fixing the support member 3 to the steel beam 2.

[0022] Support members 3 fixed to steel beams 2 are fitted with components such as hanging bolts, joist supports, and joists for supporting the ceiling, as well as ceiling materials. A plurality of support members 3 are provided at a predetermined pitch in the longitudinal direction of the steel beam 2. Therefore, a plurality of adhesive members 4 that join each support member 3 to the steel beam 2 are provided on the upper surface 22 of the lower flange 21 at the same pitch as the pitch of the support members 3.

[0023] The adhesive construction method and ceiling construction method according to this embodiment will be described. First, the support members 3 are erected between adjacent steel beams 2, and the support members 3 are bonded to the steel beams 2 with adhesive members 4 (support member erection step). In the support member erection step, adhesive members 4 are adhered to the upper surfaces 22 of the lower flanges 21 of adjacent steel beams 2 (adhesive member adhering step). As shown in FIGS. 3 and 4, the adhesive member bonding step is performed using an adhesive jig 5 for simultaneously bonding a plurality of adhesive members 4 provided at the above-mentioned pitch to one steel beam 2.

[0024] The bonding jig 5 is a long member. In this embodiment, it is a steel section with an L-shaped cross section. The portion of this steel section that corresponds to one side of the L is the first plate portion 51, and the portion that corresponds to the other side is the second plate portion 52. The bonding jig 5 bonds the multiple bonding members 4 to the upper surface 22 of the lower flange 21 in an orientation where the first plate portion 51 is horizontal and the second plate portion 52 is vertical, with its length direction being the length direction of the steel beam 2. In the following description, the bonding jig 5 is assumed to be in the above-mentioned orientation. The first plate portion 51 has a plurality of holes 53 (bonding jig holes) formed therein that are spaced apart in the longitudinal direction and penetrate the first plate portion 51 in the vertical direction. The bolts 41 of the bonding members 4 can be inserted into the holes 53. The plurality of holes 53 are arranged at the same pitch as the pitch of the bonding members 4 bonded to one steel beam 2, i.e., the pitch of the support members 3. The bolts 41 are inserted into the holes 53 from below with nuts 42 attached. The bolts 41 penetrate the first plate portion 51. The nuts 42 and bonding members 43 are arranged on the underside of the first plate portion 51.

[0025] The adhesive member 4 can be fixed to the adhesive jig 5 by fastening the adhesive jig fixing nut 54 from above the first plate portion 51 to the bolt 41 inserted through the hole portion 53 and sandwiching the first plate portion 51 between the nut 42 on the lower side of the first plate portion 51 and the adhesive jig fixing nut 54 on the upper side of the first plate portion 51. The adhesive member 4 can be removed from the adhesive jig 5 by removing the adhesive jig fixing nut 54 from the bolt 41.

[0026] In the adhesive member bonding step, the bolts 41 of the plurality of adhesive members 4 are inserted into the holes 53 and the bonding jig fixing nuts 54 are fastened to fix the plurality of adhesive members 4 to the bonding jig 5 (adhesive member bonding jig fixing step). The bonding jig 5 with the multiple adhesive members 4 fixed thereto is placed on the upper surface 22 of the lower flange 21, and the adhesive portion 43 is brought into contact with the upper surface 22 of the lower flange 21 to bond them (multiple adhesive member bonding process). If a release paper is attached to the adhesive sheet 45 of the adhesive portion 43, the release paper is peeled off before the adhesive sheet 45 is brought into contact with the upper surface 22 of the lower flange 21.

[0027] In the adhesive member bonding step of this embodiment, after the bonding jig placing step, the bonding jig 5 is pressed against the lower flange 21 (bonding jig pressing step). The first plate portion 51 of the bonding jig 5 and the lower lower flange 21 are clamped with a clamp 6, and the adhesive portion 43 of the adhesive member 4 is pressed against the upper surface 22 of the lower flange 21. Because the multiple adhesive members 4 are joined together via the bonding jig 5, the multiple adhesive members 4 can be pressed against the lower flange 21 without having to press each adhesive member 4 against the lower flange 21 with a clamp 6 or the like. Once the adhesive members 4 have been adhered to the upper surface 22 of the lower flange 21, the clamp 6 is removed.

[0028] The bonding jig 5 is removed from the plurality of bonding members 4 bonded to the upper surface 22 of the lower flange 21 (bonding jig removing step).

[0029] The support members 3 are fixed to the plurality of adhesive members 4 adhered to the upper surface 22 of the lower flange 21 (support member fixing step). In this way, the support member 3 is erected between the adjacent steel beams 2, 2. Once the support member erection process is completed, components for establishing the ceiling, such as hanging bolts, joist supports, joists, and ceiling underlayment materials, as well as ceiling materials, are attached to the support members 3, and the ceiling is constructed (ceiling material installation process).

[0030] Next, the functions and effects of the adhesive construction method, ceiling structure 1, and ceiling construction method according to the present embodiment will be described. In the adhesive construction method, ceiling structure 1, and ceiling construction method according to the present embodiment described above, the support members 3 that support the ceiling material are adhered to the steel beams 2 with adhesive members 4, so the support members 3 can be easily erected between adjacent steel beams 2, 2. Furthermore, since the ceiling material can be installed on these support members 3, compared to ceiling construction that involves providing inserts in the floor slab or attaching suspension bolts to the steel beams, the amount of material can be reduced, making construction and management easier and reducing costs. Furthermore, since no components are attached to the slab, even when work is carried out on the ceiling directly below a slab that has a waterproof layer on the floor directly above, the waterproof layer will not be damaged. Furthermore, when fixing the adhesive member 4 to the steel beam 2, there is no need to perform welding or to provide holes in the steel beam 2, so the ceiling can be easily constructed.

[0031] In addition, in the ceiling structure 1, the adhesive portion 43 has a steel plate 44 with a bolt 41 joined to one surface thereof, and an adhesive sheet 45 attached to the other surface of the steel plate 44 and adhered to the upper surface 22 of the lower flange 21. With this configuration, the adhesive member 4 can be easily adhered to the upper surface 22 of the lower flange 21 of the steel beam 2.

[0032] In the adhesive method according to this embodiment, the adhesive member bonding process is carried out using an adhesive jig 5 for bonding multiple adhesive members 4 to the upper surface 22 of the lower flange 21, and the adhesive jig 5 is formed with multiple hole portions 53 at a predetermined pitch through which bolts 41 can be inserted, and is configured so that the bolts 41 inserted into the hole portions 53 can be fixed. With this configuration, a plurality of adhesive members 4 can be simultaneously adhered to the lower flange 21 of the steel beam 2, thereby improving the efficiency of the work.

[0033] An element test was carried out to confirm the structural performance of the adhesive construction method, the ceiling structure 1, and the ceiling construction method according to this embodiment. The element test will be described below. In the element test, the actual details of the joint between the steel beam 2 (existing main beam), the lower flange 21, and the support member 3 were reproduced via adhesive member 4 similar to that of the ceiling structure 1 shown in Figures 1 and 2, and its structural performance was confirmed.

[0034] (Test specimen) The following is used for each component of each specimen: For bolt 71, which corresponds to bolt 41 of adhesive member 4, an M16 standard bolt (head length 60) is used. For steel plate 74, which corresponds to steel plate 44 of adhesive member 4, an 80mm square steel plate (PL-9, SS400) is used. For adhesive sheet 75, which corresponds to adhesive sheet 45 of adhesive member 4, a sheet impregnated with adhesive is used. The adhesive is an acrylic adhesive. The dimensions of adhesive sheet 75 are 80mm in both length and width and 3mm thick. For support member 3, a channel material (C-100 x 50 x 20 x 2.3) is used. In this elemental experiment, it was assumed that the ceiling unit had dimensions of 5m x 0.8m and a weight of approximately 1kN, and that two points on both ends of the ceiling unit were supported by adhesive material 4.

[0035] To confirm the basic structural performance of the joint, we conducted a tensile test with clearly defined loading conditions and a test in which a bending moment was applied to the adhesive surface of the adhesive member 4 (hereafter referred to as a bending test). In addition, for the bending test, we created a test specimen that reproduced the details of the actual joint, and conducted a test that was closer to the actual stress state to confirm its structural performance. Figure 5 shows a list of the experimental parameters.

[0036] (Tensile test) The assumed load in the tensile test is the weight of the specimen (vertical load). The purpose of the tensile test is to confirm basic data regarding adhesive strength (development time, required strength). Regarding the time of onset, the strength was measured on the 1st and 7th day, and the difference was confirmed. The required strength is a sufficient value (σ≧2N / mm2) taking into account the safety factor to support a ceiling unit of approximately 1kN with two adhesive bolts. 2 ) was used as the criteria for judgment. Figures 6 to 8 show specimen 7A for the tensile test. Specimen 7A is made up of a set of steel plates 74 with bolts 71 welded to them, attached together with adhesive sheets 75. An M16 bolt 78 (L = 160 mm) is joined to one of the bolts 71 with an M16 high nut 77.

[0037] (bending test) Expected loads include self-weight, seismic force, and temporary loads during construction. The purpose of the bending test is to confirm the strength against external forces that may actually act. Regarding the yield strength, in addition to the tensile stress σ, the shear stress τ was also considered. The criterion is σ>2N / mm 2 , τ>2N / mm 2 It was decided. The test specimen specifications are as follows (1)-(4). (1) On-site Adhesive Sheets, which are used on-site. (2) Diagonal loading, which is a case where an external force is applied diagonally, taking into account construction errors. (3) 50x50 case to check the dependency of adhesive strength on area (4) Details of the actual machine, which is a case to check the strength when a channel material is attached

[0038] 9 to 11 show specimen 7B for the bending test. Specimen 7B is the specimen (1) to (3) above. In specimen 7B, steel plate 74, to which bolts 71 are welded, is bonded with adhesive sheet 75 to lower flange steel plate 23, which corresponds to lower flange 21. 12 and 13 show the test equipment 8. A force is applied by a PC steel rod 81 via a rod end 82 at a position 40 mm away from the adhesive surface. Figures 14 to 16 show specimen 7C for the bending test, which simulates the details of an actual machine. Specimen 7C is the specimen in (4) above. Like specimen 7B, specimen 7C has steel plate 74, to which bolts 71 are welded, adhered to lower flange steel plate 23, which corresponds to lower flange 21, with adhesive sheet 75. Specimen 7C has support member 3 joined to bolt 71. The test equipment for the bending test, which simulates the details of an actual machine, is the same as test equipment 8 shown in Figures 12 and 13.

[0039] Experimental results (tensile test) The maximum yield strength of the tensile test experiment plan is shown in Figure 17. For both the development time and required yield strength, all specimens were σ ≥ 2 N / mm 2Comparing the experimental results for 7-day and 1-day curing periods, it can be seen that 24 hours of curing is sufficient for the adhesive to develop its strength.

[0040] Experimental results (bending test) The maximum strength of the bending test experiment plan is shown in Figure 18. For all of the above test specimens (1)-(4), σ>2N / mm 2 , and τ>2N / mm 2 This exceeded the standard. In the experiment, two types of failure were confirmed: one in which the adhesive part was the failure site, and one in which the adhesive member 4 or the support member 3 was the failure site and the adhesive part was not broken. The on-site details used in the bending test showed a large variation in maximum strength. One of the reasons for this variation is thought to be that the adhesive sheet 75 shifted when it was pressed down during the production of the test specimen, which meant that a sufficient adhesive area could not be secured. The bending test (full scale detail) was an experiment in which force was applied using support member 3, and two types of failure were confirmed: failure of the adhesive and failure of support member 3. Even with a test specimen that had been cured for one day, sufficient strength was confirmed, confirming that a pressing period of about one day on site is sufficient.

[0041] The above describes embodiments of the adhesive construction method, ceiling structure, and ceiling construction method according to the present invention, but the present invention is not limited to the above embodiments and can be modified as appropriate within the scope of the spirit thereof. For example, in the above embodiment, the adhesive portion 43 has a configuration including a steel plate 44 to which the bolt 41 is joined on one surface and an adhesive sheet 45 attached to the other surface of the steel plate 44, but other configurations are also possible as long as they are capable of adhering the bolt 41 to the lower flange 21. A liquid adhesive may be used instead of the adhesive sheet 45. In the above embodiment, the multiple adhesive members 4 are simultaneously adhered to the lower flange 21 using the bonding jig 5, but the multiple adhesive members 4 may be individually adhered to the lower flange 21. The shape of the bonding jig 5 may be other than that described above.

[0042] In the above embodiment, after the bonding jig placing step, a bonding jig pressing step is performed in which the bonding jig 5 is pressed against the lower flange 21. If the bonding jig 5 having the plurality of adhesive members 4 attached thereto is placed on the upper surface 22 of the lower flange 21, the bonding jig pressing step does not need to be performed. The bonding jig 5 may be pressed against the lower flange 21 using a jig other than the clamp 6.

[0043] As described above, element tests have been conducted to confirm the structural performance of the adhesive construction method, adhesive construction method, ceiling structure 1, and ceiling construction method according to the present embodiment. The shapes and forms of the bolts, steel plates, adhesive sheets, support members, etc. of the adhesive members 4 in the adhesive construction method, adhesive construction method, ceiling structure 1, and ceiling construction method according to the present invention may be shapes and forms other than those adopted in the element tests. [Explanation of symbols]

[0044] 1 Ceiling structure 2 Steel beams 3 Support member 4 Adhesive material 5 Adhesion jig 21 Lower flange 22 Top side 34 Hole (support member hole) 41 volts 42 Nut 43 Adhesive part 44 Steel plate 45 adhesive sheet 53 Hole (adhesive jig hole)

Claims

1. An adhesive construction method in which a support member that is installed between adjacent steel beams and supports a ceiling material is adhered to the steel beams with an adhesive member, The adhesive member is Bolt and a nut fastened to the bolt; an adhesive portion that adheres the bolt to an upper surface of the flange of the steel beam, an adhesive member adhering step of adhering the bolt to the upper surface of the flange at the adhesive portion; and a support member fixing step of inserting the bolt into a support member hole provided in the support member and fastening the nut to the bolt.

2. The adhesive member bonding step is carried out using an adhesive jig for simultaneously bonding a plurality of the adhesive members to the upper surface of the flange at a predetermined pitch in the longitudinal direction of the flange, the bonding jig is configured such that a plurality of bonding jig hole portions, into which the bolts can be inserted, are formed at the predetermined pitch, and the bolts inserted into the plurality of bonding jig hole portions can be fixed, an adhesive member bonding jig fixing step of inserting the bolts of each of the plurality of adhesive members through the bonding jig hole portions to fix the adhesive members to the bonding jig; a multiple adhesive member bonding step of placing the bonding jig to which the multiple adhesive members are fixed on an upper surface of the flange and bonding the adhesive portions of each of the multiple adhesive members to the upper surface of the flange; The bonding method according to claim 1 , further comprising a bonding jig removing step of removing the bonding jig from the plurality of bonding members bonded to the upper surface of the flange.

3. An adhesive method as described in claim 2, wherein in the multiple adhesive member bonding process, the adhesive jig to which the multiple adhesive members are fixed is placed on the upper surface of the flange, and then the adhesive jig is pressed against the flange to bond the adhesive portion of each of the multiple adhesive members to the upper surface of the flange.

4. The adhesive portion comprises a steel plate having the bolt joined to one surface thereof, The bonding method according to claim 1 , further comprising: an adhesive sheet attached to the other surface of the steel plate and bonded to the upper surface of the flange.

5. a support member that is installed between adjacent steel beams and supports the ceiling material; an adhesive member that adheres the support member to the steel beam, The adhesive member is a bolt inserted through a support member hole formed in the support member; a nut fastened to the bolt; and an adhesive portion that adheres the bolt to the upper surface of the flange of the steel beam.

6. a support member erection process of erecting a support member between adjacent steel beams and adhering the support member to the steel beams with an adhesive member; a ceiling material mounting step of mounting a ceiling material on the support member, The adhesive member is Bolt and a nut fastened to the bolt; an adhesive portion that adheres the bolt to an upper surface of the flange of the steel beam, The support member erection step includes an adhesive member bonding step of bonding the bolt to the upper surface of the flange at the adhesive portion. A ceiling construction method comprising: a support member fixing step of inserting the bolt into a support member hole provided in the support member and fastening the nut to the bolt.

Images