JP2013174066A - Road decking panel and method of constructing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a road decking panel that is good in operability since laying operation and removing operation can be efficiently performed, and prevents a rattling noise etc., from being generated when a vehicle travels, and a method of constructing the same.SOLUTION: A plurality of road decking panels 2 formed in a rectangular shape are arranged by making their lengthwise side face portions abut against each other. The road decking panels 2, 2 are unitized into a substantially integrated rigid body by mutually fastening connection metal fittings 3, 3 projected on under-surface sides of lengthwise side face portions with connection bolts 4. A connection bolt 4 is inserted into bolt holes 3b formed in connection ribs 3a of the connection metal fittings 3, 3. Double nuts are fastened to the connection bolt 4.

Description

  TECHNICAL FIELD The present invention relates to a large lining plate used by laying on a lining girder in subway work or open underground pipe laying / removal work, etc., and its laying work method. Therefore, it is possible to prevent the generation of noise such as rattling when the vehicle travels.

  In subway work by excavation work, the surface of the underground work space is covered with a lining plate so that vehicles and pedestrians can pass through it. The lining plate generally has a horizontal width of 1.0m and a length of 2.0 to 3.0m by arranging multiple H-shaped steels in parallel, butt welding the flanges, and reinforcing the ends with flat steel. It is constructed in the shape of a rectangular plate and is used by laying one by one on the lining girders that are spanned at a predetermined pitch on the surface of the underground work space.

  In addition, the lining plate laid on the lining girder may not be completely in close contact with the lining girder due to warpage or deviation due to errors during production. Each time a vehicle travels on the work board, noise such as rattling may occur, and particularly on main roads, complaints of noise such as rattling may occur from neighboring residents.

  Therefore, conventionally, in order to solve this type of noise problem, the lining plates laid on the lining girder are connected to each other or fixed on the lining girder.

  For example, Patent Document 1 discloses a structure in which lining plates laid on a lining girder are connected by bolts and nuts. Specifically, a connecting work space is formed inward of the side contact plates provided on the side contact sides of the adjacent lining plates.

  In addition, a bolt hole is formed in each side contact plate, and a jig insertion port is formed in the upper portion of the lining plate in the vicinity of the bolt hole so that the connection work space communicates with the mounting side. ing.

  And each lining board laid on the lining girder is connected by tightening a nut to the bolt inserted in the bolt hole using the jig inserted from the jig insertion port (patent) Reference 1: See FIGS. 3 (a) and 3 (b)).

  Patent Document 2 discloses a structure in which a lining plate laid on a lining girder is fixed by a plurality of clamps. In particular, a clamp of a type that is tightened with a bolt and nut is used (Patent Document). 2: See FIG.

JP 2003-239111 A JP 07-332321 A

  However, in the connection structure between the lining plates disclosed in Patent Document 1, all the bolts are inserted into the bolt holes and the nuts are tightened into the bolts through the jigs inserted into the connection work space from the jig insertion holes. It is necessary to tighten bolts and nuts in particular, so that not only the workability is very bad, but also bolts and nuts may be accidentally dropped into the connecting work space during the work.

  Moreover, in the attachment structure of the lining board disclosed by patent document 2, the thing of the type fastened with a bolt nut to the clamp which fixes a lining board to a lining girder is used, and many of them are exposed to wind and rain for a long time. Because bolts and nuts are rusted and discarded without being reused, new clamps have to be procured at each site.

  Moreover, each lining plate laid on the lining girder is fixed on the lining girder at least four corners, so the amount of clamp used is a considerable number as a whole, There were problems such as increased costs.

  It is also possible to cover the lining plates laid on the lining girders with resin or rubber sheets, but it is possible to eliminate the noise caused by warping or misalignment of the lining plates. Not.

  In addition, a temporary concrete lining board has been used for reasons such as less noise generation, but it is currently mostly used because it is cumbersome to dispose of when it becomes unusable and scrapped. Absent.

  The present invention has been made in order to solve the above problems, and can efficiently perform laying work and removal work, and has very good workability. It is an object of the present invention to provide a large lining plate and a method for laying the same, which can prevent generation of vibration and noise.

  The large lining board according to the present invention is configured by arranging a plurality of lining boards formed in a rectangular plate shape with their side faces in the long side direction facing each other, and the side parts in the long side direction of each lining board. Are formed into a unitary body by integrating the connecting metal fittings projecting on the lower surface side of each lining plate with connecting bolts.

  The present invention connects a plurality of lining plates into a unitary rigid body so that the laying and removing operations of the lining plate can be performed efficiently and the weight of the lining plate is increased. This increases the vibration and noise when the vehicle travels.

  In addition, the connecting parts of the lining plates can be easily connected and integrated by fastening the connecting metal fittings projecting from the lower side of each lining plate with the side portions in the long side direction of the lining plates with the connecting bolts. It is what I did.

  The term “substantially integral rigid body” as used herein refers to each lining when the vehicle is laid on a lining girder by hanging it with a crane or when it is laid on a lining girder. A rigid body that behaves individually as long as the plate behaves integrally and does not move individually, but absorbs the gradient of the lining girders and the steps between the lining girders and adheres to the lining girders. Means.

  As the connecting metal fitting, a shape steel such as an angle material (an angle steel) or a channel material (a groove shape steel), or a simple one formed by bending a steel plate into an L shape or a groove shape can be used. . In addition, the connecting metal fitting can also be attached in the same manner as the steadying metal fitting protruding from the lower surface side of each lining plate.

  Further, it is desirable to use a locking nut such as a double nut, a hard lock nut, or a U nut as a connecting bolt for fastening the connecting metal pieces to each other.

  Further, the method of laying a large lining plate according to the present invention includes a step of arranging a plurality of lining plates formed in a rectangular plate shape with their side portions in the long side facing each other, and A step of unitizing the side parts in the long side direction into a substantially integrated rigid body by connecting the connecting metal fittings protruding from the lower surface side of each lining plate at the butt portion of each lining plate with a connecting bolt; And a step of laying a lining plate unitized into a substantially integral rigid body on a lining girder.

  Large lining boards are connected to each other at a local work yard and unitized into a rigid body. In some cases, a truck unit transported as a unit at a factory that has a lining plate is hung with a crane or the like and laid on a lining girder. Depending on the working conditions, such as when it is not possible to work, the workability will be slightly reduced, but several lining plates are laid on the lining girder while the side portions in the long side are abutted against each other, and the lining plates are By connecting them to a substantially integral rigid body as a unit, noise and vibration can be prevented when the vehicle travels.

  According to the present invention, a plurality of lining plates are connected and unitized into a substantially integrated rigid body, so that the laying plate can be efficiently laid and removed, and the size of the lining plate can be increased. Thus, the weight of the lining plate is increased, so that even if some of the lining plates have a deviation such as a warp, the generation of vibrations and noises when the vehicle travels can be prevented.

  Furthermore, the connecting parts of the lining plates can be easily connected and integrated by fastening the connecting metal fittings projecting from the lower side of each lining plate with the side portions in the long side direction of the lining plates with the connecting bolts. be able to.

It is a perspective view which shows one Embodiment of the large sized lining board which concerns on this invention. FIG. 2 is a bottom view of the large lining plate illustrated in FIG. 1. The lining board which comprises a large lining board is shown, Fig.3 (a) is a bottom view of a lining board, FIG.3 (b) is the side view. Fig. 4 (a) is an enlarged sectional view taken along line II in Fig. 1, Fig. 4 (b) is a bottom view, and Fig. 4 (c) is a lower view in Fig. 4 (a). FIG. It is the perspective view which looked at the connection part of the lining boards in the large-sized lining board laid on the lining girder from the downward direction. Fig. 6 (a) is an enlarged sectional view taken along line II in Fig. 1, Fig. 6 (b) is a bottom view, and Fig. 6 (c) is a lower view in Fig. 6 (a). FIG. FIG. 7 (a) is an enlarged cross-sectional view taken along the line II in FIG. 1, and FIG. 7 (b) shows a connecting portion in a situation where the steady rest fitting made of an angle member and the connecting fitting for connecting the cover plates are used together. Is a bottom view. It is the perspective view which looked at the connection part of the condition which used the steadying metal fitting which consists of an angle material, and the connection metal fitting which connects lining plates mutually from the downward direction. Fig. 9 (a) shows a figure in which reinforcing ribs are inserted in the connecting part of the covering plates. FIG. 9B is an enlarged cross-sectional view of FIG. 9B, FIG. 9B is a bottom view, and FIG. 9C is a cross-sectional view of the roll line in FIG. FIG. 10 (a) is an enlarged cross-sectional view taken along the line II in FIG. 1 and FIG. 10 (b). ) Is a bottom view.

  1 to 5 show an embodiment of a large lining plate according to the present invention. In the drawing, the large lining plate 1 has a plurality of lining plates 2 butted with side portions in the long side direction against each other. The lining plates 2 are connected to each other by a plurality of connecting fittings 3 and connecting bolts 4 at the side surfaces in the long side direction so as to be unitized into a substantially integral rigid body.

  The lining plate 2 has a width of 1 m and a length of 2 to 3 m by arranging a plurality of shape steels such as H-shaped steel in parallel, butt welding the flanges, and reinforcing the ends with flat steel. It is formed in the shape of a rectangular plate.

  Further, the connecting metal fitting 3 is attached to the lower surface (back surface) side of the side surface portion in the long side direction of each lining plate 2, and the steadying metal fitting 5 is connected to the lower surface side near the short side direction of each lining plate 2. 3 is attached in close proximity.

  The connection fitting 3 is formed in an approximately L shape when viewed from the side, and one of the flanges is arranged flush with the side of the cover plate 2 in the long side direction to form a connection rib 3a. A hole 3b is formed.

  Further, the connecting fitting 3 is attached to the lower surface side of the lining plate 2 by fixing the other flange 3c to the lower surface of the lining plate 2 by welding or the like.

  The steady rest 5 is formed in a substantially L shape when viewed from the side like the joint 3, and one of the flanges is arranged parallel to the short direction of the cover plate 2 to form the steady rest rib 5 a. Yes. The steady rest 5 is attached by fixing the other flange 5b to the lower surface of the cover plate 2 by welding or the like.

  The connecting metal fitting 3 and the steady metal fitting 5 are both attached to at least each corner portion of each lining plate 2. In addition, the connecting metal fitting 2 and the steady metal fitting 5 are both formed of an angle material (L-shaped steel), a channel material (grooved steel), or the like, and in some cases, a single steel plate is bent into a substantially L shape when viewed from the side. It may be easily formed by such a method.

  The lining plate 2 configured in this way is arranged by abutting a plurality of side portions in the long side direction with each other, and the connecting ribs 3a of the connecting fittings 3 and 3 are connected to each other at the butt portion between the lining plates 2. The large lining plate 1 is unitized by being connected together by fastening with a connecting bolt 4 passing through both bolt holes 3b, 3b.

  The nut 6 of the connecting bolt 4 is a double nut as a locking nut, and a hard lock nut may be used.

  The large lining plate 1 configured as described above is laid by the crane 7 between the lining girders 8 and 8 with the long side direction parallel to the lining girders 8 and 8.

  In addition, the large lining plate 1 laid between the lining girders 8 and 8 is considerably heavy because the plurality of lining plates 2 are integrated and unitized, so that some of the lining plates 1 Even if the board 2 is warped or distorted in production, noise such as rattling or vibration is not generated when the vehicle travels on the board 2.

  In addition, a gap of about 5 to 10 mm is provided between the end portions of the anti-rest rib 5b of the anti-rest metal fitting 5 and the flange 8a of the lining girders 8 and 8.

  FIGS. 6 to 10 show other embodiments of the large lining plate according to the present invention, and all of them are mainly intended to reinforce the connecting metal fittings. Hereinafter, in order, in the embodiment illustrated in FIGS. 6A to 6C, the reinforcing rib 9 is attached to the connection fitting 3.

  The reinforcing rib 9 is formed in a rectangular plate shape as shown in the figure, for example, and is attached by welding to both the connecting rib 3a of the connecting metal fitting 3 and the flange 3c welded to the lower surface of the cover plate 2.

  The reinforcing ribs 9 are preferably attached to both sides of the connecting bolt 4 as shown in the drawing, but may be attached only to one side of the connecting bolt 4. Further, when mounting on both sides of the connecting bolt 4, a sufficient space is provided between the reinforcing ribs 9 and 9 so as not to hinder the fastening of the connecting bolt 4.

The embodiment illustrated in FIG. 7 and FIG. 8 is a combination of the steady rest metal fitting 5 made of an angle material and the connection fitting 3 that couples the lining plates 2.
By connecting a rectangular plate-like plate having a bolt hole to the end of the steady rest 5 by welding, a connecting rib 3a of the connecting bracket 3 is formed, and a flange to be welded and fixed to the cover plate 2 of the connecting bracket 3 Is omitted.

  In the embodiment shown in FIGS. 9A to 9C, in the embodiment shown in FIGS. 7 and 8, the reinforcing rib 9 is parallel to the steady rib 5a of the steady bracket 5 with the connecting bolt 4 interposed therebetween. It is attached. The reinforcing rib 9 is attached to the connecting rib 3a and the lower surface of the lining plate 2 by welding.

  Also in this embodiment, a sufficient space is provided between the steady rest rib 5a and the reinforcing rib 9 so as not to hinder the fastening of the connecting bolt 4.

  In the embodiment of FIG. 10, the steady rest metal fitting 5 using the channel material and the connecting metal fitting 3 for connecting the lining plates 2 are combined, and the steady rest metal fitting 5 is formed of a channel material, By connecting a rectangular plate-like plate having a bolt hole to the end of the steady rest 5 by welding, a connecting rib 3a of the connecting bracket 3 is formed, and the flange of the connecting bracket 3 that is welded and fixed to the lining plate 2 3b is omitted.

  As described above, in any of the embodiments, the connection rib 3a of the connection fitting 3 is reinforced so that the deformation of the connection rib 3a in the out-of-plane direction can be particularly prevented. Further, by using the connecting fitting 3 and the steady rest fitting 5 together, it is possible to save members and simplify the structure.

  The present invention can efficiently perform laying and removing work, has good workability, and can prevent generation of noise such as rattling when the vehicle travels on the lining plate.

1 Large lining plate 2 Lining plate 3 Connecting bracket
3a Connecting rib
3b Bolt hole 4 Connection bolt 5 Stabilizer
5a Stabilizing rib 6 Nut 7 Crane 8 Covering girder
8a flange

Claims (5)

  A plurality of lining plates formed in the shape of a rectangular plate are abutted with each other on the side surfaces in the long side direction, and the side surfaces in the long side direction of each lining plate are projected on the lower surface side of each lining plate. A large-sized lining board characterized by being unitized into a substantially integral rigid body by connecting together connecting fittings with connecting bolts.   2. The large lining plate according to claim 1, wherein the connecting metal fitting is formed of an angle material or a channel material.   3. The large lining plate according to claim 1 or 2, wherein the connecting metal fitting is formed also as a steady metal fitting.   The large-sized lining board as described in any one of Claims 1-3 WHEREIN: The locking nut is used for the nut of a connection bolt.   A step of arranging a plurality of lining plates formed in a rectangular plate shape such that the side portions in the long side direction are abutted to each other, and the side portions in the long side direction of the respective lining plates are abutted portions of each lining plate In the above, a step of unitizing into a substantially integrated rigid body by connecting the connecting metal fittings projecting on the lower surface side of each lining plate with a connecting bolt, and lining the lining plate unitized into a substantially integrated rigid body A method for laying a large lining board, comprising the step of laying on a girder.

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