JP4828466B2 - Floor slab construction method using cargo handling device and composite floor slab - Google Patents

Description

The present invention is a civil engineering equipment for bridge construction, etc., and a cargo handling device for carrying construction materials such as reinforcing bars in construction work
The present invention relates to a method for constructing a floor slab using a synthetic floor slab.

  One of the works in civil works such as bridge construction is the reinforcement work of reinforcing bars as a pre-work when placing concrete, and the work of the reinforcement work is an on-site work by hand. Further, the reinforcing bars used for the bar arrangement work are also transported from the material storage area to the work site as the bar arrangement work proceeds.

  Previously, construction materials such as rebars were carried manually, and each rebar was 10m to 15m long and weighed 30kg to 40kg, which was a heavy burden on the work and the workability was extremely poor. It was.

  Therefore, as disclosed in Patent Document 1, the present applicant provided a cargo handling method and a cargo handling apparatus, which reduced the burden on the operator and greatly improved work efficiency.

  The civil engineering work in which Patent Document 1 is implemented is, for example, a bridge construction. A beam or the like is bridged between steel piers with a steel girder or the like, and a floor slab is constructed. Assemble the scaffold using the beam, and install a formwork for placing concrete so as to cross over the beam, and further incorporate a reinforcing bar, steel frame, etc. in the formwork to further increase the required thickness Concrete is placed in the formwork.

  In the above-described floor slab construction method, the range that can be used as a scaffold is limited to the upper flange of the main girder, and the cargo handling method and cargo handling apparatus disclosed in Patent Document 1 correspond to such work situations. It was.

  One of the recent methods of floor slab construction is a floor slab construction method using a composite floor slab in which concrete is cast on a steel panel. In the floor slab construction method, The panel has a function as a formwork, and the formwork installation work is omitted.

  Here, a synthetic floor slab and a floor slab construction method using the synthetic floor slab will be described with reference to FIG.

  In FIG. 22, 1 indicates a main beam, and a steel panel 2 is installed between the main beams 1 and 1.

  The steel panel 2 has a bottom steel plate 3 and a reinforcing member 4 disposed in a direction orthogonal to the main girder 1 welded to the bottom steel plate 3 at a required interval, and further a stud 5 for strengthening the bonding of concrete. Are planted at a predetermined density, and as the reinforcing member 4, a shape steel, an iron plate or the like is used. The reinforcing member 4 may be provided in a direction intersecting with the main beam 1 or in parallel or substantially in parallel.

  The steel panel 2 is manufactured in advance in the factory, such as by cutting out the bottom steel plate 3 and welding the reinforcing member 4 and the stud 5 to the bottom steel plate 3 at the factory.

  The completed steel panel 2 is transported to the construction site and installed. Further, the joint between the steel panel 2 and the steel panel 2 is joined at a site by a necessary means such as friction joining. After the steel panel 2 is installed, a reinforcing bar 6 is arranged above the reinforcing member 4. The reinforcing bars 6 necessary for the bar arrangement work are transported from the material storage area to the work site as the bar arrangement work proceeds. When the reinforcing bars 6 are arranged, concrete is placed. In placing concrete, the steel panel 2, particularly the bottom steel plate 3 functions as a mold, eliminating the need for on-site mold installation work.

  The cargo handling method and cargo handling apparatus disclosed in Patent Document 1 can also be implemented in a floor slab construction method using a synthetic floor slab. In the floor slab construction method using a synthetic floor slab, the entire surface of the steel panel 2 can be used as a scaffold. However, in the cargo handling method and cargo handling apparatus of Patent Document 1, the installation location is limited to the upper flange of the main girder 1. Further, the reinforcing member 4 is provided on the flange surface, and there is a restriction that the installation place is further restricted.

JP 2005-188079 A

  In view of such circumstances, the present invention eliminates restrictions on the installation of a cargo handling device that transports construction materials in a floor slab construction method using a composite floor slab, simplifies the installation work, and makes the installation location appropriate. To improve work efficiency.

  The present invention relates to a load handling apparatus used in the construction of a floor slab using a steel panel in which reinforcing members are fixed to a bottom steel plate at a required interval. It is mounted on a member, the rail support mechanism is fixed to a stud planted on the bottom steel plate via a fixing auxiliary tool, the rail is fixed to the support column, and the cargo handling cart device can travel on the rail. This relates to a cargo handling device.

  The present invention also relates to a cargo handling apparatus in which a horizontal member is stretched between the columns, and the horizontal member is fixed to the stud planted on the bottom steel plate via the fixing auxiliary tool.

  Furthermore, the present invention provides a rail support mechanism having a column that is erected vertically in a loading / unloading device used in the construction of a floor slab using a steel panel in which reinforcing members are fixed to a bottom steel plate at a required interval. It is placed on the reinforcing member, a horizontal member is stretched between the columns, the horizontal member is fixed to a test rod installed in the main girder, a rail is fixed to the column, and a load is loaded on the rail. The present invention relates to a cargo handling device that can run a cart device.

  The present invention also includes a step of placing a rail support mechanism including a rail support column on a steel panel at a necessary interval over the entire construction section, and the rail support mechanism is implanted in the steel panel. Fixing to the protruding member, fixing the rail to the column, laying the rail, moving the loading cart device to the rail, transporting the construction materials, and placing the concrete on the steel panel And a method of constructing a floor slab using a composite slab having a step of removing the rail in the construction completion section and the rail support mechanism in accordance with the progress of the construction.

  According to the present invention, in the cargo handling apparatus used in the construction of a floor slab using a steel panel in which reinforcing members are fixed to a bottom steel plate at a required interval, a rail support mechanism having a column vertically installed is provided. Mounted on the reinforcing member, the rail support mechanism is fixed to a stud planted on the bottom steel plate via a fixing aid, the rail is fixed to the support column, and the cargo handling cart device can travel on the rail Therefore, the rail support mechanism can be easily installed by simply placing it on the composite floor slab, and there is no restriction on the location of the rail.

  According to the present invention, a horizontal member is stretched between the columns, and the horizontal member is fixed to the stud planted on the bottom steel plate via the fixing auxiliary tool. Even if it acts, it is stable.

  Further, according to the present invention, in the cargo handling apparatus used in the construction of a floor slab using a steel panel in which reinforcing members are fixed to a bottom steel plate at a required interval, a rail support mechanism having a column vertically installed Is placed on the reinforcing member, a horizontal member is stretched between the columns, the horizontal member is fixed to a test rod installed in the main girder, a rail is fixed to the column, and the rail is fixed to the rail. Since the cargo handling cart device can be run, the rail support mechanism can be easily laid by simply placing it on the steel panel, and exhibits excellent effects such as no restrictions on the location of the rail.

  According to the invention, the step of placing the rail support mechanism including the rail support columns on the steel panel at a required interval over the entire construction section, and the planting of the rail support mechanism on the steel panel. A step of fixing to the projecting member provided, a step of laying and fixing a rail to the column, a step of running a load handling cart device to the rail and transporting construction materials, and concrete to the steel panel. Since there is a step of placing and a step of removing the rail and the rail support mechanism in the construction completion section in accordance with the progress of the construction, the rail can be easily laid without being restricted by the installation location. It is possible to install a cargo handling trolley device, and also to transport construction materials by the cargo handling trolley device, improving work efficiency and removing the rail and rail support mechanism sequentially for the construction completion section. Rail, gauge The support mechanism, the work of removing the cargo apparatus is also completed, work efficiency of the deck construction to exhibit excellent effects such as improved.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  First, an outline of a cargo handling apparatus according to the present invention will be described with reference to FIGS. In FIGS. 1 and 2, the same components as those shown in FIG. 22 are denoted by the same reference numerals.

  A self-supporting rail support mechanism 8 is placed over at least two reinforcing members 4 of the steel panel 2, and the rail support mechanism 8 is arranged at a required interval. Is supported.

  A cargo handling trolley device 11 is provided on the rail 9 so as to be able to travel. As the cargo handling cart device 11, for example, the one described in Japanese Patent Publication No. Sho 46-36562 can be used.

  The cargo handling cart device 11 shown in the figure is a single-rail self-propelled type, and the cargo handling cart device 11 is composed of a driving cart 12 and loading carts 13 and 14 that are appropriately connected and organized to the driving cart 12. The If two rails (double rails) are supported by the rail support mechanism 8, a double rail type cargo handling cart device 11 can be used. Further, the hand-held cargo handling cart device 11 may be used instead of the self-propelled type.

  The drive carriage 12 and the loading carriages 13 and 14 ride on the upper surface of the rail 9 via wheels 15 so that they can run freely. Further, a rack 16 is provided on the lower surface of the rail 9, and the drive carriage 12 has a traveling gear (not shown) that meshes with the rail 9, and the driving gear is driven to rotate, The drive carriage 12 travels and pulls the loading carriages 13 and 14.

  Next, the rail support mechanism 8 will be described.

  FIG. 3 shows the rail support mechanism 8 according to the first embodiment.

  The rail support mechanism 8 includes two pedestal bars 18 and 18 that are arranged in parallel, a support bar 19 that is perpendicular to the pedestal bars 18 and 18, and a column that is erected on the support bar 19. 21 is provided.

  The pedestal bar 18 is preferably a square pipe having a rectangular cross section, and has a length that extends over at least the reinforcing members 4 and 4. The column 21 is preferably a pipe having a circular cross section, and is fixed to the support bar 19 by a required means such as welding. End fittings 22 are fixed to both ends of the support bar 19 by welding or the like, and the pedestal bar 18 is fixed to both ends of the support bar 19 by bolts 23 inserted through the end fittings 22.

  A connection tool 24 having an L-shaped cross section that spans the back surface of the support bar 19 and the side surface of the pedestal bar 18 is fixed by a bolt, and reinforces the connection between the pedestal bar 18 and the support bar 19. The connector 24 may be secured in advance to either the pedestal bar 18 or the support bar 19 by welding or the like.

  The rail support mechanism 8 can be easily assembled by attaching the pedestal bar 18 to both ends of the support bar 19. A pedestal frame 20 placed on the reinforcing member 4 is constituted by the pedestal bars 18 fixed to both ends of the support bar 19. The rail support mechanism 8 can stand by the pedestal frame 20.

  By placing the rail support mechanism 8 on the reinforcing member 4 at a predetermined interval, the installation of the column 21 is completed. The installation range of the rail support mechanism 8 extends over the entire construction section extending to the construction site farthest from the material storage. By fixing the rail 9 to the support column 21, the installation of the rail 9 is completed. Further, depending on the situation, a horizontal member 25 is attached between the columns 21 to reinforce the support of the columns 21.

  The rail 9 is first laid in all sections of the construction, the construction is performed from a distant site, the rail 9 is gradually removed from the completed construction, and the rail support mechanism 8 is removed. Therefore, the rail support mechanism 8 and the rail 9 do not interfere with the work of the construction, and when the construction is completed, all or most of the rail 9 and the rail support mechanism 8 are removed. It has become.

  The attachment of the rail 9 and the horizontal member 25 will be described with reference to FIG.

  A rail fixing bracket 26 is fitted to the upper end of the column 21, and the rail fixing bracket 26 is fixed by a push bolt 27. In addition, by making the fitting hole of the rail fixing bracket 26 a blind hole, it becomes possible to position the rail fixing bracket 26 against the upper end of the column 21 so that positioning with respect to the column 21 is possible. By controlling the above, adjustment of the vertical position of the rail fixing bracket 26 can be omitted.

  Alternatively, adjustment of the vertical position of the rail fixing bracket 26 can be omitted by aligning the upper end of the rail fixing bracket 26 with the upper end of the column 21.

  A spacer 28 is interposed between the rail 9 and the rail fixing bracket 26, and the rail 9 is fixed to the rail fixing bracket 26 with a bolt 29. The spacer 28 may be omitted, and the rail 9 may be directly fixed to the rail fixing bracket 26. The rail fixing bracket 26 and the spacer 28 may be integrally formed.

  The horizontal member 25 is fixed by a clamp 31 in a state orthogonal to the support column 21.

  When the fixing of the rail 9 and the mounting of the horizontal member 25 are completed, the cargo handling cart device 11 is put on the rail 9.

  The rail 9 and the horizontal member 25 are attached to the support column 21 of the rail support mechanism 8 and a plurality of the rail support mechanisms 8 are connected, whereby the installation state of the rail support mechanism 8 is stabilized, and the rail Even if the support mechanism 8 is not fixed to the steel panel 2, the cargo handling cart device 11 can be stably driven only by being placed on the reinforcing member 4.

  When the cross wind is strong and further stability is required, the rail support mechanism 8 is fixed using a plurality of studs 5 implanted in the bottom steel plate 3.

  When the rail support mechanism 8 is fixed using the stud 5, a fixing auxiliary tool 33 is used.

  An auxiliary bar 34 having a circular cross section is passed between the adjacent rail support mechanisms 8 and 8, and the auxiliary bar 34 and the stud 5 are connected by the fixing auxiliary tool 33.

  With reference to FIGS. 4-6, an example of the said fixing assistance tool 33 is demonstrated.

  The auxiliary fixing tool 33 includes an auxiliary metal fitting A35, an auxiliary metal fitting B36, and an auxiliary metal fitting C37. The auxiliary metal fitting A35 includes a cylindrical portion 38 that fits the auxiliary bar 34, and a plate portion 39 that is welded to the cylindrical portion 38. The auxiliary metal fitting B36 has an L shape.

  The auxiliary metal fitting C37 includes a plate portion 41 bent into an L shape, a nut 42 fixed to the plate portion 41 by welding or the like, and a connecting bolt 43 screwed to the nut 42. The plate portion 41 has an engagement hole 44 into which the head of the stud 5 can be inserted and removed.

  The auxiliary metal fitting A35 is fitted to the auxiliary bar 34, and the auxiliary metal fitting A35 is allowed to rotate with respect to the auxiliary bar 34. The auxiliary metal fitting B36 is fixed to the plate portion 39 with bolts. The connection bolt 43 is loosely inserted into the auxiliary metal fitting B 36, the connection bolt 43 is screwed into the nut 42, and the plate portion 41 is engaged with the stud 5 through the engagement hole 44.

  The length of the fixing auxiliary tool 33 is adjusted by tightening the connecting bolt 43, and the inclination of the fixing auxiliary tool 33 is adjusted by rotating the auxiliary metal fitting A35 with respect to the auxiliary bar 34. The

  When the length and inclination of the fixing auxiliary tool 33 are determined, the auxiliary metal fitting A35 is fixed to the auxiliary bar 34 by a push screw 45.

  In the above description, the auxiliary bar 34 is fixed to the stud 5 by the fixing auxiliary tool 33, but the horizontal member 25 may be fixed to the stud 5 by the fixing auxiliary tool 33.

  Further, as shown in FIG. 4, when the rail support mechanism 8 is provided on the main girder 1, a fixing rod (not shown) is used as a holding and fixing means for fixing the rail support mechanism 8. Also good.

  The inspection rod is erected on the flange of the main girder 1 at a predetermined interval, and is used when measuring the casting thickness or the like of concrete.

  The rail support mechanism 8 can be more easily fixed by fitting and fixing the pipe to the inspection rod and fixing the pipe and the horizontal member 25 using the clamp 31.

  The installation position of the rail support mechanism 8 is placed on the reinforcing member 4 and is not limited to the main girder 1.

  A second embodiment will be described with reference to FIG.

  In the second embodiment, the pedestal bar 18 has a length straddling three or more reinforcing members 4, and there are a plurality of support bars 19 (in the drawing, spanning the pedestal bars 18, 18). 2), the support column 19 is provided with the support column 21 upright, and the rail support mechanism 8 has the two support columns 21. The pedestal bar 18 and the support bar 19 constitute a cross-shaped pedestal frame 20.

  The connection between the support bar 19 and the pedestal bar 18 is the same as that shown in the first embodiment, and can be divided into members, assembled in advance, and installed as a unit. Therefore, conveyance by a truck or the like may be disassembled into members and assembled and installed as a unit on site.

  FIG. 8 shows a third embodiment. In the third embodiment, the rail support mechanism 8 is assembled to a pedestal frame 20 having a rectangular frame with a pedestal bar 18 and a support bar 19. In order to form a rectangular frame, the pedestal bar 18 and the support bar 19 may be connected in the same manner as in the first embodiment, or the frame body is integrated by welding or the like to form the pedestal frame 20. Also good.

  FIG. 9 shows a fourth embodiment. In the fourth embodiment, the horizontal member 25 for reinforcing the support column 21 is omitted, and the support bar 19 and the upper end portion of the support column 21 are omitted. A turnbuckle 47 is stretched.

  FIG. 10 shows a fifth embodiment in which a spacer 48 is interposed between the base bar 18 and the reinforcing member 4 so that a space G is formed between the rail support mechanism 8 and the reinforcing member 4. It is.

  The spacer 48 is formed with concave grooves on the lower side and the upper side, the concave grooves are orthogonal to each other, the lower concave groove is slidably fitted to the reinforcing member 4, and the upper concave groove is the aforementioned concave groove The pedestal bar 18 is slidably fitted. Therefore, even if there is a position shift between the rail support mechanism 8 and the steel panel 2, the spacer 48 does not come off. Alternatively, the spacer 48 may be welded to the pedestal bar 18.

  By interposing the spacer 48 and forming the space G between the rail support mechanism 8 and the reinforcing member 4, bar arrangement can be performed with the rail support mechanism 8 installed, and workability is improved.

  FIG. 11 shows a sixth embodiment, in which the pedestal bar 18 is configured in a circular shape, support bars 19 are attached radially from the center of the pedestal bar 18, and a column 21 is formed at the center where the support bar 19 intersects. It is erected. A circular pedestal frame 20 integrated with the pedestal bar 18 and the support bar 19 is formed.

  In the seventh embodiment shown in FIG. 12, the support bar 19 is crossed to form a cross-shaped (four-branch) base frame 20, and the support column 21 is erected at the crossing portion of the support bar 19. . The support bar 19 may be branched into three forks (three branches) or five or more branches.

  FIG. 13 shows an eighth embodiment, in which a support bar 19 is fixed to a base plate 49 by welding or the like to form a base frame 20. The pedestal plate 49 has a sufficient area straddling at least two reinforcing members 4. The support bar 19 and the pedestal plate 49 may not be integrated, and the pedestal plate 49 may be used as a floor plate.

  FIG. 14 shows a ninth embodiment, in which a support frame 19 is orthogonally connected to a base plate 49 to form a base frame 20. The pedestal plate 49 is placed on the reinforcing member 4, the support bar 19 extends so as to intersect the reinforcing member 4, and spans at least two reinforcing members 4.

  The tenth embodiment shown in FIG. 15 is further simplified. The rail support mechanism 8 according to the tenth embodiment has a structure in which a support column 21 is erected on a pedestal plate 49 having a sufficient area spanning the two reinforcing members 4. It functions as a pedestal frame 20. In addition, as a structure where the support column 21 is erected on the pedestal plate 49, a short shaft is erected on the pedestal plate 49 so that the support column 21 can be fitted into and removed from the pedestal plate 49. At the time of installation, the column 21 is fitted to the shaft, and the column 21 is erected.

  FIG. 16 shows an eleventh embodiment. In the eleventh embodiment, the number of members constituting the rail support mechanism 8, particularly the pedestal frame 20, is reduced. A support bar 19 is disposed perpendicular to the reinforcing member 4, columns 21 are erected on both ends of the support bar 19, and pedestal bars 18 are provided obliquely on both ends of the support bar 19, respectively. The length and angle of the pedestal bar 18 are set so as to straddle at least two reinforcing members 4.

  FIG. 17 shows a twelfth embodiment, in which a support bar 19 is arranged orthogonal to the reinforcing member 4, and struts 21 are erected on both ends of the support bar 19, respectively. Two pedestal bars 18 are provided at both ends of 19 respectively. The two pedestal bars 18, 18 are provided in a Y shape, and each pedestal bar 18 is placed on the reinforcing member 4.

  In any of the above embodiments, the stud 5 or a test rod (not shown) may be used to fix the steel panel 2 side.

  Further, the rail support mechanism 8 only needs to be installed on the reinforcing member 4, and the rail 9 can be laid immediately after installation, and the workability is very good.

  18 and 19 show a thirteenth embodiment. In the thirteenth embodiment, the constituent members of the rail support mechanism 8 are further reduced as compared with the eleventh embodiment.

  The rail support mechanism 8 according to the thirteenth embodiment includes a pedestal bar 18 having a required length and a support column 21 erected on the pedestal bar 18. The pedestal bar 18 is preferably a rectangular hollow pipe having a rectangular cross section, and the length of the pedestal bar 18 extends over at least two reinforcing members 4 while being inclined with respect to the reinforcing member 4. . The column 21 is preferably a pipe having a circular cross section, and the column 21 is fixed to the base bar 18 by welding or the like. A T-shaped rail support member 50 is configured in a state where the support column 21 is fixed to the pedestal bar 18.

  The rail support member 50 is placed on the reinforcing member 4 so that the pedestal bar 18 is inclined with respect to the reinforcing member 4 and extends over the two reinforcing members 4.

  The rail support members 50 are arranged at a required interval in the longitudinal direction of the main beam 1. The direction of inclination of the pedestal bar 18 is arbitrary. For example, as shown in FIG.

  The rail support member 50 is erected, the column 21 is vertical, a horizontal member 25 is passed between the adjacent columns 21 and 21, and the horizontal member 25 and the column 21 are connected and fixed by a clamp 31. By connecting at least two rail support members 50 by the horizontal member 25, the rail support members 50 can be self-supporting.

  Thus, if the horizontal member 25 and the rail support member 50 are sequentially assembled, the rail support mechanism 8 extending over a required range is assembled.

  By fixing the rail 9 to the support column 21 of the rail support mechanism 8, the laying of the rail 9 is completed. The installation range of the rail 9 extends over the entire construction section extending to the construction site farthest from the material storage.

  The rail 9 is first laid in all sections of the construction, the construction is started from a distant part, and the rail 9, the rail support member 50, and the horizontal member 25 are gradually removed and removed from the completed construction. . Accordingly, the rail 9, the rail support member 50, and the horizontal member 25 do not interfere with the work of the work, and when the work is completed, all of the rail 9, the rail support mechanism 8, or almost all. Has been removed.

  The attachment of the rail 9 and the horizontal member 25 will be described with reference to FIG.

  A rail fixing bracket 26 is fitted to the upper end of the column 21, and the rail fixing bracket 26 is fixed by a push bolt 27. The fitting hole of the rail fixing bracket 26 is a blind hole, and the rail fixing bracket 26 is abutted against the upper end of the column 21 so that positioning with respect to the column 21 is possible. When the fitting hole is penetrating, the adjustment of the vertical position of the rail fixing bracket 26 can be omitted by aligning the upper end of the rail fixing bracket 26 with the upper end of the column 21.

  A spacer 28 may be interposed between the rail 9 and the rail fixing bracket 26, or the rail 9 may be directly fixed to the rail fixing bracket 26. The horizontal member 25 is fixed by the clamp 31 in a state orthogonal to the column 21.

  When the fixing of the rail 9 and the mounting of the horizontal member 25 are completed, the cargo handling cart device 11 is put on the rail 9.

  Since the struts 21 of the plurality of rail support members 50 are connected by the horizontal member 25 and the rail 9 is further attached, the installation state of the rail support mechanism 8 is stabilized, and the rail support mechanism 8 is made of steel. Even if it is not fixed to the panel 2, the cargo handling cart device 11 can be stably driven only by being placed on the reinforcing member 4.

  As shown in FIG. 20, when an external force such as a cross wind acts and further stability is required, a large number of the horizontal members 25 are implanted in the bottom steel plate 3 via the fixing auxiliary tool 33. Fix using the stud 5.

  When the rail support mechanism 8 is provided on the main girder 1, an inspection rod (not shown) is used as a holding and fixing means, and the horizontal member 25 is fixed to the inspection rod using the clamp 31.

  The fourteenth embodiment will be described with reference to FIG. In FIG. 21, the same components as those shown in FIG. 18 are denoted by the same reference numerals.

  In the fourteenth embodiment, the rail support members 50, 50 in the thirteenth embodiment are connected in a distorted manner.

  The rail support members 50 and 50 may be connected so that the ends of the pedestal bars 18 and 18 are fixed at a predetermined angle, or may be connected flexibly. In the case where the pedestal bars 18 having the same length are used, the interval between the columns 21 standing on the pedestal bar 18 can be adjusted by adjusting the bending angle even when the pedestal bars 18 having the same length are used.

  Further, when the pedestal bar 18 is connected to be able to be bent, a plurality of rail support members 50 can be connected in advance and can be spread and installed at the installation site. By connecting a plurality of pieces in advance, the connection work at the site is reduced, and by connecting a plurality of pieces, it becomes possible to be independent and workability is improved. In addition, the conveyance and handling properties are improved by folding the product during transportation. The pedestal bars 18, 18 may be disassembled and may be disassembled during transportation.

  The bent state between the rail support members 50 and 50 is fixed by installing the horizontal member 25 between the support columns 21 and 21. The rail 9 is attached to the column 21 and the rail 9 is laid.

  In order to further secure the stability of the rail support mechanism 8, the stud 5 and the test rod can be fixed using the same as in the thirteenth embodiment.

  The rail support member 50 constituting the rail support mechanism 8 is composed of two members, the pedestal bar 18 and the support column 21, and has a very simple structure with few used members.

  In the present invention, since the rail support mechanism 8 only needs to be placed on the reinforcing member 4, the installation position of the rail support mechanism 8 is not limited, and the rail support mechanism 8 can be placed at any position on the steel panel 2. Can be installed.

  Further, the rail support mechanism 8 only needs to be installed on the reinforcing member 4, and the rail 9 can be laid immediately after installation, and the workability is very good.

It is a side view which shows embodiment of this invention. It is an AA arrow line view of FIG. It is a perspective view of a rail support mechanism used for a 1st embodiment of the present invention. It is a front view of this rail support mechanism. It is a front view of the auxiliary metal fitting used for this rail support mechanism. It is a top view of this auxiliary metal fitting. It is a top view of the rail support mechanism used for the 2nd Embodiment of this invention. It is a top view of the rail support mechanism used for the 3rd Embodiment of this invention. (A) is a top view of the rail support mechanism used for the 4th Embodiment of this invention, (B) is a side view. (A) is a top view of the rail support mechanism used for the 5th Embodiment of this invention, (B) is a side view. It is a top view of the rail support mechanism used for the 6th Embodiment of this invention. It is a top view of the rail support mechanism used for the 7th Embodiment of this invention. It is a top view of the rail support mechanism used for the 8th Embodiment of this invention. It is a top view of the rail support mechanism used for the 9th Embodiment of this invention. It is a top view of the rail support mechanism used for the 10th Embodiment of this invention. It is a top view of the rail support mechanism used for the 11th Embodiment of this invention. It is a top view of the rail support mechanism used for the 12th Embodiment of this invention. It is a top view of the rail support mechanism used for the 13th Embodiment of this invention. It is a front view of the rail support mechanism used for the 13th Embodiment of this invention. It is a top view of the fixing auxiliary tool used for the 13th Embodiment of this invention. It is a top view of the rail support mechanism used for the 14th Embodiment of this invention. It is explanatory drawing which shows a synthetic floor slab.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main girder 2 Steel panel 3 Bottom steel plate 4 Reinforcement member 5 Stud 6 Reinforcing bar 8 Rail support mechanism 9 Rail 11 Cargo trolley device 12 Drive trolley 14 Loading cart 18 Pedestal bar 19 Support bar 20 Pedestal frame 21 Post 25 Horizontal member 26 Rail Fixing bracket 33 Fixing fixture 35 Auxiliary bracket A
36 Auxiliary metal fitting B
37 Auxiliary metal fitting C
47 Turnbuckle 48 Spacer 50 Rail support member

Claims (4)

  In a cargo handling apparatus used for floor slab construction using a steel panel in which a reinforcing member is fixed to a bottom steel plate at a required interval, a rail support mechanism having a vertically installed column is mounted on the reinforcing member. The rail support mechanism is fixed to a stud planted on the bottom steel plate via a fixing auxiliary tool, the rail is fixed to the support column, and the cargo handling cart device can run on the rail. Cargo handling equipment.   2. The cargo handling apparatus according to claim 1, wherein a horizontal member is stretched between the support columns, and the horizontal member is fixed to the stud planted on the bottom steel plate via the fixing auxiliary tool.   In a cargo handling apparatus used for floor slab construction using a steel panel in which a reinforcing member is fixed to a bottom steel plate at a required interval, a rail support mechanism having a vertically installed column is mounted on the reinforcing member. A horizontal member is placed between the columns, the horizontal member is fixed to a test rod installed in the main girder, a rail is fixed to the column, and a loading cart device can travel on the rail. A cargo handling device characterized by that.   A step of mounting a rail support mechanism including a rail support column on a steel panel at a required interval over the entire construction section, and fixing the rail support mechanism to a protruding member implanted in the steel panel A step of fixing and laying a rail on the column, a step of running a loading cart device on the rail and transporting construction materials, a step of placing concrete on the steel panel, and a construction A method for constructing a floor slab using a composite floor slab, comprising the step of removing the rail in the construction completion section and the rail support mechanism in accordance with the progress of the construction.

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