JP2004052382A - Method for mounting panel on backside of girder of elevated structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for mounting a panel on the backside of a girder of an elevated structure, which enhances workability and safety, in terms of the panel to be mounted on the backside of the girder of the elevated structure where the panel is to be mounted in such a manner that the panel to be mounted serves as scaffolding. <P>SOLUTION: A panel supporting material 6 is mounted on the panel 3, and the the panel 3 is hung for fixation by panel supporting materials 61, 62 and 63, so that a hanger and a hanging member can be made unnecessary, so that the processes of mounting/demounting the hanger and the hanging member can be omitted, and so that the method for mounting the panel can be equipped with the high workability. Since the supporting materials 61, 62 and 63 constitute the panel 3 on the backside of the girder 2 even after the fixation of the panel 3 and have high strength and rigidity, the oscillation of the panel 3 can be reduced at temporary fixation, and the safety is enhanced. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method of attaching a panel to the back side of a girder of an elevated structure such as a bridge or an elevated road.
[0002]
[Prior art]
For example, on the backside of a girder of an elevated structure such as an elevated road, there is a sound absorbing panel or a girder having a sound absorbing property to prevent noise of vehicles passing thereunder from being reflected on the backside of the girder and leaking noise to the surroundings. A decorative panel is attached to make the back surface more beautiful. The mounting of the panel on the back side of the girder is dangerous in working at heights, and the installation and disassembly of the scaffold requires a lot of trouble. Therefore, various inventions relating to the panel mounting method as a countermeasure have been made. It has been disclosed.
[0003]
For example, Japanese Patent Application Laid-Open No. 9-184285 discloses that an exterior unit assembled by fixing an exterior member in advance is temporarily fixed to an elevated structure using a suspension material, and then permanently fixed, and adjacent exterior units are connected and fixed to each other. The method is shown.
[0004]
Also, in Japanese Patent Application Laid-Open No. 11-181718 by the present applicant, a hanging member is attached to a girder member, a panel to be attached is suspended at a predetermined height by the hanging member, and then the suspended panel is used as a scaffold, The method of fixing the panel itself to the beam is shown.
[0005]
Furthermore, Japanese Patent Application Laid-Open No. 2000-144641 discloses a method in which a beam is temporarily suspended on a beam using a suspending member, a panel is attached to the beam, and the beam and the beam are fixed using the panel as a scaffold. It is shown.
[0006]
[Problems to be solved by the invention]
However, in these conventional methods, temporary fixing is performed by using a hanging member or a hanging member, and then the panel is fixed to the beam member. It requires steps such as mounting of the panel, fixing of the fixing member for fixing the panel to the girder material, mounting of the fixing member to the girder material, mounting of the fixing member to the panel, and removal of the suspending material and the suspending member. Although simpler than in the case, it was still troublesome. In addition, extra materials other than those constituting the panel on the back side of the girder, such as hanging members and hanging members, are required.
[0007]
Furthermore, if the hanging member and the hanging member are formed of a material such as a wire or a chain, the worker working on the panel is exposed to danger in the event of being subjected to a strong wind during the final fixing work after the temporary fixing. There is fear. If the suspension member and the suspension member are formed of a material having high rigidity such as steel, the weight increases, handling becomes inconvenient, and the cost increases.
[0008]
Therefore, the present invention solves the above-mentioned problems in a panel on the back side of a girder of an elevated structure where a panel to be mounted is used as a scaffold, and solves the above-described problem and improves the workability and safety. No panel mounting method is provided.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the present invention has the following configuration. That is, in the method of mounting a panel on the back surface of a girder of an elevated structure according to the present invention, a panel support is attached to a panel, the panel is hung from the girder via the panel support, and then the panel support is mounted on the girder. It is characterized by being fixed to a material.
[0010]
By attaching the panel support to the panel and suspending and fixing the panel with the panel support, there is no need for a suspending member or a suspending member, and the step of attaching and detaching the suspending member or the suspending member is omitted. And the method of mounting the panel can be highly workable. In addition, since the panel supporting member forms the panel on the back side of the girder even after the panel is fixed and has high strength and rigidity, it is possible to reduce the sway of the panel at the time of temporary fixing and enhance safety.
[0011]
Further, a method for mounting a panel on the back surface of a girder of an elevated structure according to the present invention is characterized in that a panel support member is fixed to the girder member via a mounting portion provided on the girder member in advance.
[0012]
Further, the panel supporting member is provided with a hook portion, and the hook portion is hooked on the girder material, whereby the panel is hung on the girder material.
[0013]
Still further, the panel support member is characterized in that the panel support member is made foldable by rotating means provided near a joint with the panel.
[0014]
Further, the panel is a sound absorbing panel having a sound absorbing property.
[0015]
Furthermore, the panel is a decorative panel for concealing the back side of the girders.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiments according to the present invention will be specifically described below with reference to the drawings.
8 and 9 show an example of an elevated structure in which a panel is attached to a back surface of a girder by a conventional method of attaching a panel to the back surface of a girder of an elevated structure. FIG. 8 is a cross-sectional view, and FIG. It is a perspective view.
[0017]
In FIG. 8, a plurality of girder members 2 are provided along the longitudinal direction on the back side of the girder of an elevated structure 1 such as a bridge or an elevated road. A plurality of rectangular panels 3 are arranged on the back surface of the girder of the elevated structure 1 in a direction intersecting with the girder members 2, and the length of the panel 3 is preferably set to be easy to attach between the girder members 2. A dimension substantially equal to the interval between the members 2 (since the dimension between the beam members 2 is usually about 3 to 3.5 m, the length of the panel 3 is also about 3 to 3.5 m corresponding to the dimension) The width is preferably set to a narrow width of about 600 to 1000 mm in order to secure a width enough for the worker to ride on and to reduce the weight so that the worker can lift it by hand. In the longitudinal direction of the upper surface of the panel 3, a plurality of mounting grooves 32 each having an opening edge 31 protruding inward are provided in parallel.
[0018]
Further, a plurality of beams 4 made of, for example, H-shaped steel are fixedly connected to each other by connecting the plurality of panels 3 to each other and intersecting with the longitudinal direction of the panels 3. Fixed. The fixing member 5 includes a horizontal member 51 which is laterally extended from the girder member 2 and fixed by welding, and a vertical member 52 which connects and fixes the horizontal member 51 and the panel support member 4 with mounting bolts 53. I have.
[0019]
In the conventional method of mounting the panel 3 on the back side of the girder, a horizontal member 51 is fixed to the side of the girder member 2 in advance by welding or the like, and the panel 3 is temporarily fixed to the girder member 2 using a hanging member or a hanging member. An operator rides on the panel 3 in a temporarily fixed state, attaches the beam member 4 to the panel 3, further arranges a vertical member 52 between the beam member 4 and the horizontal member 51, and attaches each to the mounting bolt 53. This is fixed by fixing. After the permanent fixing, the hanging member and the hanging member are removed, and the state as shown in FIGS. 8 and 9 is obtained.
[0020]
When the panel 3 is attached by such a method, not only does the process become complicated, and the panel is shaken during the final fixing operation, which is dangerous, but also the panel 3 is set to a predetermined height before the final fixing. It is necessary to adjust the height, and even if the height adjusting means is provided in the middle of the hanging member or the hanging member, there is a problem that the adjustment takes time and effort.
[0021]
FIG. 1 is an explanatory diagram showing one embodiment according to the present invention. The panel supporting members 6 for fixing the panel 3 are provided on both left and right sides of the panel 3, and are formed of a connecting member 61, a vertical member 62, and a horizontal member 63 slidably mounted in the longitudinal direction of the panel 3. It is fixed by bolts 64. With such a structure, the panel supporting member 6 can be slid in the longitudinal direction of the panel 3, and the positioning in the temporary fixing and the main fixing is easy.
[0022]
In the method of attaching the panel 3 to the back surface of the girder according to the present embodiment, first, the panel 3 is lifted to a predetermined height. When the panel 3 is lifted, the horizontal member 63 is kept at a position where it does not contact the beam 2, and the lower surface of the horizontal member 63 is positioned higher than the upper surface of the lower flange 21 of the beam 2. In the state of being lifted to a predetermined height, the panel supporting member 6 is slid in the direction of the girder so that the horizontal member 63 is located above the lower flange portion 21 of the girder 2, and the panel 3 is slowly lowered in that state. The lower surface of the horizontal member 63 is brought into contact with the upper surface of the lower flange portion 21 of the girder 2 to temporarily fix it. In the temporarily fixed state, the horizontal frame member 63 is permanently fixed to the girder member. This fixing may be carried out by drilling a through-hole in the horizontal frame member 63 and the lower flange portion 21 with a mounting bolt or by welding, and the horizontal frame member 63 and the wave portion 22 may be fixed with the mounting bolt. Or welding.
[0023]
By mounting the panel 3 in this manner, the panel 3 can be mounted on the girder 2 by bringing only the panel 3 on which the panel support material 6 is mounted to the construction site without using a hanging material or a hanging member. it can. Further, since the lower surface of the horizontal member 63 of the panel supporting member 6 can be temporarily fixed only by abutting the lower surface of the lower flange portion 21 of the girder member 2, the labor involved in the temporary fixing is extremely small. Furthermore, since the temporary fixing is performed by the panel support member 6 and the final fixing operation can be performed in that state, the swing of the panel 3 at the time of the temporary fixing is far more than the case where a wire or a chain is used for the hanging member or the hanging member. It becomes smaller and the work safety is improved.
[0024]
The connecting member 61 and the vertical member 62 may be configured so that the vertical member 62 can be turned over by rotating means as shown in FIG. When the panel 3 is temporarily and permanently fixed, the connecting member 61 and the vertical member 62 are fixed by a plurality of mounting bolts 64A and 64B as shown in a), but the panel supporting member 6 protrudes upward during transportation or the like. If it is in the way, the mounting bolt 64B is removed, the mounting bolt 64A is slightly loosened, and the vertical member 62 is rotated around the mounting bolt 64A in the direction of the arrow or vice versa, as shown in b). The vertical member 62 is not hindered by being laid down, which leads to efficient transportation and saving of storage space. The heads of a predetermined number of mounting bolts 33 and 34 are respectively inserted from the ends into the dovetail-shaped mounting grooves 32 formed on the left and right sides of the upper surface of the panel 3 in the longitudinal direction. Then, by attaching the connecting member 61 to the inserted mounting bolts 33 and 34, the panel supporting member 6 can be slid.
[0025]
3 to 7 show another embodiment according to the present invention. FIGS. 3 and 4 are perspective views showing a girder member, and FIG. 5 is a perspective view showing details of a horizontal member of a panel supporting member. 6 and 7 are side views showing the process of attachment. First, as shown in FIG. 3, a beam support member 71 is attached to the wave member 22 previously suspended from the upper flange portion 23 of the girder member 2 by welding or the like, and further, is welded to the upper surface of the beam support member 71, and the beam member is attached by a mounting bolt or the like. The mounting portion 7 is formed by mounting 72. The attachment portion 7 is preferably provided above the lower surface of the lower flange portion 21 of the girder member 2. When the elevated structure 1 to which the girder member 2 is attached is transported, it becomes obstructive or deforms due to a load. Troubles, such as running, can be prevented. In addition, if the mounting portion 7 is mounted at the same time when the elevated structure 1 is manufactured, the time required for installing the elevated structure 1 is not extended.
[0026]
Further, the beam member 72 may be provided on the lower surface of the beam support member 71 as shown in FIG. A horizontal girder or a cable girder may be provided between the lower flange portion 21 and the upper flange portion 23 of the girder 2, and such a space is extremely limited, but such a structure is adopted. Thus, the upper and lower spaces on the beam material 72 where the beam support material 71 is present can be used as the space related to the attachment of the panel support material 6, and the limited space can be maximized. In addition, also in this structure, it is preferable that the mounting part 7 is provided above the lower surface of the lower flange part 21 of the girder 2.
[0027]
FIG. 5 shows the vicinity of the upper end of the panel supporting member 6 in the present embodiment. A horizontal member 63 having an L-shaped angle is attached to the vertical member 62 near the upper end thereof. When the flat plate member 631 is attached by welding or the like, the front end of the panel supporting member 6 is formed as a hook-shaped hook 8 by the vertical member 62, the horizontal member 63, and the member 631. The horizontal member 63 is provided with a through hole 632 through which a mounting bolt can be inserted.
[0028]
Next, as shown in FIG. 6, the panel 3 is temporarily fixed to the beam 2 by the panel supporting member 6 via the mounting portion 7. First, the panel supporting member 6 slidable by providing a dovetail-shaped mounting groove 32 as shown in FIG. 2 is moved to a position suitable for temporary fixing. Next, with the panel 3 raised to a predetermined height, the hook 8 of the panel supporting member 6 is moved above the mounting portion 7. At this time, as shown in FIG. 2, as the vertical member 62 is rotated about the mounting bolt 64 </ b> A, the hooking portion 8 can move quickly above the mounting portion 7.
[0029]
Finally, as shown in FIG. 7, the panel 3 is slowly lowered with the hook portion 8 at the tip of the panel support member 6 hooked on the beam member 72 of the mounting portion 7, and the upper surface of the beam member 41 and the horizontal member 63. The beam member 41 and the horizontal member 63 are fastened by mounting bolts 65 in this state, and are fixed permanently. Note that the mounting bolt 64B may be attached at the time of final fixing, but it is preferable that the mounting bolt 64B is attached before performing the temporary fixing so that the panel support member 6 in the process from the temporary fixing to the final fixing is stabilized. preferable.
[0030]
In the embodiment shown in FIGS. 3 to 7, in addition to the effect obtained by the embodiment shown in FIGS. 1 and 2, the panel supporting member 6 In the longitudinal direction of the panel support member 6 slides by the mounting groove 32 and can be freely mounted by the beam member 72 in the direction perpendicular to the longitudinal direction. , Installation can be easy. Further, since the beam supporting members 71 are provided on the wave portions 22 of the girder members 2, the strength of the girder members 2 does not decrease. Further, the panel supporting member 6 is formed into a hook-shaped hooking portion 8 by a member 631 provided at the tip of the horizontal member 63, and the hooking portion 8 is hooked on the beam member 72, so that the work at the time of temporary fixing and permanent fixing is performed. Even if the panel 3 shakes inside, the risk that the horizontal member 63 slips off and comes off the beam member 72 can be eliminated, and work safety can be enhanced.
[0031]
The panel 3 may be a sound absorbing panel having a sound absorbing property for preventing noise of a vehicle passing under the elevated structure from being reflected on the backside of the girder and leaking noise to the surroundings. It may be a decorative panel for concealment and cosmetics, and the purpose of the panel to be attached is not particularly limited.
[0032]
The soundproof panel may be formed of a sound absorbing material such as an aggregate of metal fibers or a powdered sintered body of ceramic or the like, or a front plate and a back plate having a large number of openings. The sound absorbing material may be provided inside the hollow panel body formed by the above, or a cylinder or a half cylinder having sound absorbing properties may be arranged, and is not particularly limited. .
[0033]
Further, as the decorative panel, for example, a coated metal plate in which a polyester powder coating, an acrylic resin coating, a fluororesin coating, an inorganic coating, or the like is applied to the surface of an aluminum alloy plate, a zinc steel plate, or the like is used. Not something.
[0034]
【The invention's effect】
According to the present invention, a panel supporting member is attached to a panel, and the panel is suspended and fixed by the panel supporting member, without requiring a hanging member or a hanging member, and attaching a hanging member or a hanging member, The step of removing the panel can be omitted, and the method of attaching the panel can be highly workable. In addition, since the panel supporting member forms the panel on the back side of the girder even after the panel is fixed and has high strength and rigidity, it is possible to reduce the sway of the panel at the time of temporary fixing and enhance safety.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing an embodiment according to the present invention.
FIG. 2 is an explanatory diagram showing details of a panel support member according to the present invention shown in FIG.
FIG. 3 is an explanatory view showing an example of a mounting portion of another embodiment according to the present invention.
FIG. 4 is an explanatory view showing another example of the mounting portion of another embodiment according to the present invention.
FIG. 5 is an explanatory view showing an example of a panel support member of another embodiment according to the present invention.
FIG. 6 is an explanatory view showing a mounting process of another embodiment according to the present invention.
FIG. 7 is an explanatory view showing a mounting process of another embodiment according to the present invention.
FIG. 8 is a cross-sectional view showing an example of a conventional elevated structure in which a panel is attached to the back surface of a girder.
FIG. 9 is a perspective view showing an example of a conventional elevated structure in which a panel is attached to a back surface of a girder.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 elevated structure 2 girder 3 panel 32 mounting groove 33 mounting bolt 34 mounting bolt 4 beam 5 fixing member 6 panel support 61 connecting member 62 vertical member 63 horizontal member 631 member 64 mounting bolt 65 mounting bolt 7 mounting portion 71 beam Supporting material 72 Beam 8 Hook

Claims (6)

Attaching a panel support to the panel, suspending the panel to a girder through the panel support, and then fixing the panel support to the girder. Mounting method. The method according to claim 1, wherein the panel supporting member is fixed to the girder via a mounting portion provided on the girder in advance. The panel on a back surface of a girder of an elevated structure according to claim 1 or 2, wherein a hook portion is provided on the panel support member, and the hook portion is hung on the girder material, whereby the panel is hung on the girder material. Mounting method. 4. The back of the elevated structure according to claim 1, wherein the panel supporting member is made foldable by rotating means provided near a joint with the panel. 5. Panel mounting method. The panel mounting method according to any one of claims 1 to 4, wherein the panel is a sound absorbing panel having a sound absorbing property. The method according to any one of claims 1 to 4, wherein the panel is a decorative panel for concealing a back surface of the girder.

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