JP2015059412A - Covering plate fitting instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an instrument for fitting a covering plate that can easily fix the covering plate and complies with the demand for rapid construction.SOLUTION: A covering plate fitting instrument 21 is an instrument used to fix a covering plate 1 laid on a main girder, and includes a press bolt 33 which presses a press member 9 for pressing the covering plate toward the covering plate, and an attitude fixing bolt 27 for securing reaction force against the pressing by the bolt. The press member 9 having a cross-section in a substantially L shape is configured to press a covering plate edge part. The press bolt 33 is configured to press the press member 9 against the covering plate edge part. The attitude fixing bolt 27 is configured to fix the attitude of the fixing instrument 21 by utilizing a ground covering material 5 projected on the main girder as reaction force. An instrument like this is utilized for fixing work on the covering plate to be laid, so that neither conventional assembly of a dedicated scaffolding under the covering plate nor sending of a worker to a reverse surface side of the covering plate is needed.

Description

  The present invention relates to a lining plate mounting tool used when fixing a lining plate laid on a beam.

  Steel lining boards are used not only to cover the upper surface of various excavation works such as subway construction, underground mall construction and underground piping work, but are also widely used as floor boards for temporary gantry and jetty. .

  Conventionally, when laying a lining plate, a plurality of lining plates are laid out in the horizontal and vertical directions on the upper surface of a receiving girder made of H-shaped steel or the like, and the lining plates arranged vertically and horizontally are not misaligned. In addition, each of the plurality of lining plates must be securely fastened to the receiving girder with a dedicated metal fitting. For example, in the construction of a pier with a width of 6 m, 2 m × 3 lining boards are laid out in the horizontal direction and laid in the traveling direction in the same manner, and each lining board is laid on the receiving girder. It was fastened with the attached dedicated bracket.

  However, the fixing work of the lining board in the prior art cannot be carried out only by the worker on the surface side of the lining board, but a dedicated scaffold is assembled under the lining board and the back side of the lining board is also provided. It was necessary for the workers to go around and tighten the bolts in cooperation with the workers on both sides of the lining board. Therefore, the conventional lining plate laying method requires the installation of a dedicated scaffold, etc., and the worker must go around the back side of the lining plate and perform complicated fastening work in a small space, There was a problem that the construction cost and construction period required for that were extra. In addition, there is a problem that such complicated work hinders rapid construction.

  Accordingly, in view of the problems of the prior art described above, the object of the invention of this application is to provide a cover that makes it possible to easily and labor-saving fixing of a lining plate to a receiving girder and to meet a demand for rapid construction. It is to provide a work plate mounting tool.

The above purpose is an instrument used to fix the lining board laid on the beam,
A pressing means for pressing the pressing member for pressing the lining plate in the direction of the lining plate;
Reaction force securing means for securing a reaction force for pressing by the pressing means;
This is achieved by a lining plate mounting tool comprising:

  In the above lining plate mounting tool, the pressing member is configured to press the upper surface side edge portion of the lining plate, and the pressing means presses the pressing member against the upper surface side edge portion of the lining plate. It is configured to press.

  Further, in the above lining plate mounting tool, the reaction force securing means is configured to fix the posture of the lining plate fixing tool by applying a reaction force to a structure fixed to the beam. Examples of the “structure fixed to the beam” here include a protruding structure such as a ground covering material (a structure fixed and integrated with the beam).

  In the present invention, a dedicated lining plate mounting tool (edge presser) is used in the laying plate laying operation. This lining plate mounting device includes a reaction force securing means for securing a reaction force by removably fixing itself to a certain structure (for example, a protruding structure such as a ground covering material), and the reaction force securing means. And a pressing means for pressing the pressing member against the lining plate in a state in which a reaction force is applied to the structure. By using such a tool for fixing the lining plate to be laid, only the worker arranged on the upper surface side of the lining plate can fix the lining plate (so that the laid lining plates are not displaced). Can be fixed securely to the beam. In other words, there is no need to build a dedicated scaffold under the lining board or to turn a fixing worker to the back side of the lining board, as in the past, so laying the lining board at a shorter time and at a lower cost than before. Can be completed, and it will be possible to meet further requests for rapid construction.

It is the top view (perspective view) and sectional drawing which show the jetty which comprises the lining board fixed using this invention. It is a top view which shows the state before laying the lining board of a jetty shown to FIG. 1 (A). It is the top view and sectional view which show a mode that the lining board of the integral structure which has the width | variety equivalent to the width of a pier is laid. It is an expanded sectional view which shows the right side of the pier which comprises the lining board fixed using this invention. It is a figure which illustrates one process of the lining board laying method. It is a next process of Drawing 5A, and is a figure which illustrates one process of a lining board laying method. It is a next process of Drawing 5B, and is a figure which illustrates one process of a lining board laying method. It is a next process of Drawing 5C, and is a figure which illustrates one process of a lining board laying method. It is a next process of Drawing 5D, and is a figure which illustrates one process of a lining board laying method. It is a next process of Drawing 5E, and is a figure which illustrates one process of a lining board laying method. It is a next process of Drawing 5F, and is a figure which illustrates one process of a lining board laying method. It is a perspective view which shows the lining board attachment tool (edge presser) of this invention utilized for the fixing operation | work of the lining board with respect to the main girder (beam). FIG. 7 (a) is a perspective view showing a state in which the pressing member is applied to the ground covering material protruding from the upper part of the main girder, and FIG. 7 (b) is a lining fixed to the ground covering material. It is a perspective view which shows a mode that the press member is pressed down using the plate attachment tool (edge presser). In addition, illustration of a lining board is abbreviate | omitted in FIG. It is a figure which shows the procedure at the time of attaching the lining board attachment tool (edge presser) shown in FIG. 6 to a ground covering material.

  The present invention relates to a lining plate mounting tool used in a laying plate laying operation.

  Steel lining boards are used not only for the purpose of closing the upper surface of various road excavation work such as subway construction, underground city construction, underground piping work, etc. .

  Hereinafter, piers will be cited as specific examples of the use of the lining plate, and embodiments of the lining plate laying method and the lining plate mounting tool will be described.

FIG. 1 is a plan view (perspective view) and a sectional view showing a pier on which a lining plate is laid. In addition, in FIG. 1, the same hatching was attached | subjected for every lining board. Accordingly, the pier illustrated in FIG. 1 has 13 lining plates laid along the longitudinal direction of the pier.
FIG. 2 is a plan view showing a state of the pier shown in FIG. 1 before laying the lining plate.
3A and 3B are a plan view and a cross-sectional view showing a state in which lining boards having an integrated structure having a width corresponding to the width of the pier are laid out along the longitudinal direction of the main girder.
FIG. 4 is an enlarged cross-sectional view showing the right side of the pier on which a lining plate is laid. In addition, since the same structure appears about the left side of a jetty, illustration is abbreviate | omitted.

  As shown in FIG. 2, this pier mainly includes four main girders (beams) 3 that are substantially parallel to each other, and a horizontal girder 2 that connects these main girders to each other. The state in which the main beams (beams) are "parallel" means that multiple main beams (beams) can be used to cover the area where the road surface or work surface is secured, including the state where they are installed side by side. It is a concept that includes a state of being fixed side by side in the necessary range.

  Of the four main girders 3, projecting structures 5 are fixed in an upright state along the longitudinal direction of the upper surfaces of the main girders at both ends (both sides in the width direction). This protruding structure 5 (protruding structure) constitutes a ground covering material (so-called vehicle stop) in the present embodiment. Hereinafter, the protruding structure is referred to as a “ground covering material”.

  The four main girders 3 forming the lining receiving girder are each made of H-shaped steel (or I-shaped steel or the like). As shown in FIG. 4, on the upper surface side of the upper flange 4 of the main girder 3, a ground covering material 5 is fixed in an upright state (that is, a state protruding upward from the main girder) and fastened with bolts. The ground covering material 5 is made of channel steel having a substantially U-shaped cross section, and a pressing member 9 for pressing the laid covering plate 1 so as not to move is provided on the web 6 with a horizontal bolt. 13 is fixed. The pressing member 9 is made of a spherical flat steel having a substantially L-shaped cross section.

  The pressing member 9 made of spherical flat steel fixed to the web 6 of the ground covering material 5 has a ground covering material so that the raised convex portion 10 restricts (obstructs) the vertical movement of the lining plate 1. 5 is fixed. The pressing member 9 may be fixed in the vicinity of the lining plate so as to simply prevent the lining plate 1 from moving in the vertical direction. Preferably, a downward pressing force is applied to the lining plate 1. It is preferable to fix to the ground covering material 5 in a state of being pressed against the upper surface side edge portion of the lining plate so as to continue.

  As described above, the pressing member 9 shown in FIG. 4 plays a role of pressing the upper side edge portion of the lining plate so that the lining plate 1 laid on the main girder 3 does not move at least in the vertical direction. I'm in charge. Therefore, even if a strong wind blows on the laid lining plate 1 from the lower side or the laid lining plate receives vibrations, the lining plate will not be lifted. Safety is ensured.

  As shown in FIG. 3, each lining plate already has the size of the pier width in the state before laying. That is, a lining plate having a length corresponding to the distance between the main girders at both ends is used instead of using a small lining plate arranged in the width direction as in the prior art. Such a wide monolithic lining board is laid and fixed along the longitudinal direction of the main girder.

  In this embodiment, as an example, a case where a lining plate is laid on a jetty having four main girders is described, but the number of main girders to be laid is not particularly limited, and at least If the two main girders are provided, the present invention can be applied to fix the lining plate. Therefore, for example, the present invention can be applied to the construction of a “humanitarian bridge” including two main girders.

(Method of laying lining board)
Next, taking a jetty as a specific example, a specific procedure of the lining plate laying method will be described based on FIGS. FIG. 5A to FIG. 5G illustrate a procedure when the lining plate 1 is laid and fixed on the main girder 3 of the jetty that is being constructed.

  Among the four main girders 3 in parallel, on the upper surface side of the upper flange 4 of the main girders 3, 3 at both ends (that is, both sides in the width direction), as shown in FIGS. The lower flange 7 of the ground covering material 5 is fixed by bolt fastening along the longitudinal direction on the upper surface side. In addition, the fixing method of the ground covering material 5 is not necessarily limited to bolt fastening as shown in the figure, and can be fixed using other means such as welding. The ground covering material 5 is an example of a projecting structure that projects from the upper surface side of the upper flange 4 of the main girder 3.

  Next, as shown in FIG. 3, the lining plate 1 is disposed so as to be bridged between the main girders 3 and 3 at both ends, and the side surface of the lining plate 1 is covered with the ground as shown in FIG. 5B. The material 5 is positioned so as to face the web 6. As a result, as shown in FIG. 1, the covering plate 1 is sandwiched between the covering materials 5 and 5 protruding from the upper surfaces of the main girders 3 and 3 at both ends (that is, the covering materials 5 and 5). A state in which the lining plate 1 is positioned therebetween) is secured.

  In addition, as shown in FIG. 3, each lining board laid in this embodiment has a size in which the lining board alone can be installed between the main girders 3 and 3 at both ends. In other words, as described in the prior art, instead of laying and connecting a plurality of lining boards in the horizontal direction (width direction) and connecting them across the main girders, the lining of an integral structure that is almost the same size as the width size The board is bridged between the main girders at both ends (that is, installed in the width direction). As shown in FIG. 1, a plurality of such lining plates are laid side by side in the longitudinal direction of the main girder of the pier. Therefore, by using the lining plate as shown in FIG. 3, it is not necessary to join the lining plate in the width direction, and it is only necessary to fix both edge portions of the lining plate to the main beam.

  Next, as shown in FIG. 5C and FIG. 7A, the pressing member 9 made of spherical flat steel having a substantially L-shaped cross section is attached to a predetermined position of the web 6 of the ground covering material 5. Specifically, as shown in FIG. 5C, the protruding portion 10 protruding so as to rise is positioned so as to be on the lower side (side facing the upper surface side edge portion of the lining plate 1), and the pressing member 9 is As shown to Fig.7 (a), it goes to the web 6 of the ground covering material 5. FIG. The pressing member 9 is a member that plays a role of hindering the lining plate 1 disposed on the main girder 3 from moving at least in the vertical direction. In this embodiment, spherical flat steel is used as the constituent material of the pressing member 9, but angle iron or the like may be used instead.

  Next, as shown in FIG. 5D and FIG. 7 (b), the lining plate attaching device 21 (edge presser) according to the present invention is fitted and attached to the upper flange 8 of the ground covering material 5. The lining plate mounting tool 21 is a tool used in the work for fixing the lining plate to the main girder, and has a function such as a vise. In the present embodiment, the lining plate attaching device 21 plays a role of pressing the pressing member 9 against the upper surface side edge portion of the lining plate 1 in a state in which a reaction force is secured to the ground covering material 5.

As shown in the perspective view of FIG. 6, the lining plate mounting tool 21 covers the screw-type posture fixing bolt 27 (reaction force securing means / horizontal bolt) that operates like a vise and the pressing member 9. A screw-type pressing bolt 33 (pressing means / vertical bolt) for pressing in the plate direction is provided.
Both the posture fixing bolt 27 and the pressing bolt 33 are configured to move forward and backward by rotating forward and backward.
In the process shown in FIG. 5D, the posture fixing bolt 27 is tightened to securely clamp the web 6 of the ground covering material between the bolt 27 and the pressure receiving portion 37, and thereby the posture of the lining plate attaching device 21. To secure a reaction force on the ground covering material. Then, with the reaction force applied to the ground covering material 5 as described above, the tip end portion of the pressing bolt 33 is gradually lowered, and the convex portion 10 of the pressing member 9 is strongly pressed against the covering plate 1 at the tip end portion. . Thereby, the state which presses the upper surface side edge part of the lining board 1 with respect to the main girder 3 direction is ensured using the ground covering material for reaction force.

  Next, as shown in FIG. 5E, with the pressing member 9 pressed downward, a through hole 15 is formed in the pressing member 9 and the web 6 of the ground covering material, and bolts 13 are fastened by bolts 13 there. And unite them. For example, a hole punch such as a magnetic drilling machine is used to make holes in the pressing member 9 and the ground covering material 5. In this step, the state in which the bolt 33 of the lining plate mounting tool 21 presses the pressing member 9 against the lining plate edge portion is maintained.

  Then, as shown in FIG. 5F, when the pressing member 9 is securely bolted to the ground covering material 5, the pressing bolt 33 and the posture fixing bolt 27 of the covering plate mounting tool 21 are reversely rotated to loosen the covering. The plate attachment tool 21 is removed from the ground covering material 5. Thereby, as shown in FIG. 5G, a state in which the pressing member 9 presses the lining plate 1 against the main girder 3 is ensured. In addition, since the pressing member 9 is securely bolted to the ground covering material 5 with the lining plate 1 being pressed, the pressing member 9 is removed even after the lining plate attaching device 21 is removed. However, the state which presses down the lining board 1 by using the ground covering material 5 as a reaction force is maintained.

  Then, the lining plates 1 having a single structure are laid out at a predetermined pitch along the longitudinal direction of the main girder, and the above-described steps are performed at a predetermined pitch on the right side and the left side of the lining plate 1. Repeat with. Thereby, the work of laying the lining plate on the plurality of parallel main girders is completed.

  In addition, although the position which attaches the pressing member 9 mentioned above is not specifically limited, Preferably, this pressing member is fixed to the web 6 of the ground covering material 5 so that the pressing member 9 may straddle the joint of the covering plates 1 and 1. Is desirable.

(Lining plate fixture)
Next, a specific configuration of the lining plate mounting tool 21 used in the above-described lining plate laying method will be described. The lining plate attaching tool 21 (edge presser) is a working tool used when the lining plate 1 is fixed to the main girders 3 at both ends.

As shown in FIG.
A substantially C-shaped main body 25 integrally having a carrying handle 23;
Posture fixing bolt 27 (horizontal bolt) that operates like a vise screw part;
A cylindrical bolt holder 31 that holds the posture fixing bolt 27 so as to be movable forward and backward;
A pressing bolt 33 (vertical bolt) for pushing the pressing member 9 in the direction of the lining plate or bringing it close thereto;
A block-shaped pressure receiving portion 37 that holds the pressing bolt so as to be movable forward and backward;
have.

  The posture fixing bolt 27 (reaction force securing means / horizontal bolt) has a screw formed on the outer peripheral surface thereof so as to advance and retract by rotating forward and backward. This posture fixing bolt 27 functions as a reaction force securing means for securing a reaction force for pressing by the pressing bolt 33. The cylindrical holder 31 that holds the posture fixing bolt 27 has a screw formed on the inner peripheral surface thereof, and is integrally formed with the main body 25. By rotating the head portion 28 of the posture fixing bolt 27 in a predetermined direction, the tip end portion 29 (pressing cap) can be pushed toward the knurled surface of the block-shaped pressure receiving portion 37.

  The two pressing bolts 33 (pressing means / vertical bolts) are formed with screws on the outer peripheral surface so as to advance and retract by rotating forward and backward, respectively. The block-shaped pressure receiving portion 37 that holds the pressing bolt 33 is formed integrally with the main body 25, and a threaded hole through which the two pressing bolts 33 are passed is formed. Further, a continuous uneven knurled portion 39 is formed at a portion where the pressure receiving portion 37 is in contact with the ground covering material 5. By rotating the head portion 34 of the pressing bolt 33 in a predetermined direction, the tip end portion 35 (pressing cap) is lowered, and the pressing member 9 can be pressed in the direction of the cover plate.

(How to use the lining plate fixture)
In the laying operation of the lining plate using the lining plate attachment tool 21 having the above-described configuration, it is necessary to attach the lining plate attachment tool 21 to the ground covering material 5 according to a series of procedures shown in FIG. In the process, first, the posture fixing bolt (horizontal bolt) 27 and the pressing bolt (vertical bolt) 33 of the lining plate attaching device 21 are set in a loosened state.

  Next, as shown in a series of procedures in FIGS. 8A to 8D, the upper flange 8 of the ground covering material is inserted into the C-shaped main body 25 while turning the cover plate attaching device 21. As a result, as shown in FIG. 7 (b), the upper flange 8 of the ground covering material is accommodated in the C-shaped main body 25. Then, the posture fixing bolt 27 is rotated in a predetermined direction, and the posture fixing bolt is The front end portion 29 (pressing cap) of the head is advanced to the back side. As a result, the ground covering material 5 is strongly pressed against the pressure receiving portion 37 by the advanced distal end portion 29 of the posture fixing bolt 27, and the web of the ground covering material is interposed between the distal end portion 29 of the posture fixing bolt and the pressure receiving portion 37. Since 6 is securely clamped, the lining plate attaching device 21 is integrated with the ground covering material 5, and the posture of the lining plate attaching device is fixed (the state shown in FIG. 8 (e)). Thereby, the reaction force for pressing the pressing member 9 against the lining plate 1 is ensured in the ground covering material.

  In addition, when there is a support (a support for fixing the guardrail) just behind the position where the lining plate attaching device 21 is to be installed, as shown in FIG. 8 (a '), the ground cover is located at a position away from the support. The main body 25 of the lining plate attaching device 21 is inserted into the upper flange 8 of the material 5, and then the lining plate attaching device 21 is shifted laterally as shown in FIG. Clamp in place and fix.

  When the lining plate mounting tool 21 is attached to the ground covering material 5 and the posture fixing bolt 27 is firmly fixed to the posture and the reaction force is secured by the above procedure, the two pressing bolts 33 are respectively rotated in predetermined directions. The tip 35 (pressing cap) of the bolt is lowered. As a result, as shown in FIG. 5D, the pressing member 9 is strongly pressed against the upper surface side edge portion of the covering plate 1 by the lower end portion of the pressing bolt 33, and as a result, The lining plate 1 is securely clamped between the upper flange 8 of the main girder.

  If the state which pushes down the lining board 1 with the pressing member 9 is ensured through the said procedure, as shown to FIG. 5E, the through-hole 15 will be formed in the pressing member 9 and the ground covering material 5, and the volt | bolt 13 will be horizontally installed there. And fasten both bolts. Thereby, while the pressing member 9, the ground covering material 5, and the main girder 1 are integrated, the state in which the pressing member 9 pushes down the cover board 1 is maintained.

  When the bolt fastening between the pressing member 9 and the ground covering material 5 is completed, the lining plate attaching device 21 is removed from the ground covering material 5. The removal procedure is performed in the reverse order to the series of procedures shown in FIG.

(Excellent effect of this embodiment)
The lining board used in the above-described embodiment is a lining board laid on a plurality of parallel beams, and is a monolithic lining board having a width size that can be bridged between beams at both ends. is there. By using such a lining board for various constructions such as the construction of a temporary gantry and a pier, the number of members related to laying the lining board (number of lining boards, fastening bolts, etc.) is drastically reduced. Can be remarkably simplified, enabling construction with a short construction period and low cost, and meeting the demand for rapid construction. Moreover, in the removal work of the temporary gantry or the pier on which the lining plate is laid, the number of members is small as described above, so that the lining plate can be easily removed. In addition, since the laying / removing operation of the lining plate is simplified in this way, the safety of construction is drastically improved.

Further, in the above-described embodiment, in the method of laying a lining plate on a plurality of parallel beams, a protruding structure (for example, a ground covering material) is fixed along the longitudinal direction on each upper surface of the beams at both ends. Then, the lining plate is arranged so as to be bridged between the beams at both ends, and the side surface of the lining plate is positioned so as to face the protruding structure. Then, when the state in which the cover plate is sandwiched between the protruding structures protruding from the upper surfaces of the beams at both ends is secured to the beam using the protruding structure as a reaction force To do.
According to such a method, only the worker on the upper surface side of the arranged lining plate fixes the lining plate (fixed directly or indirectly to the beam so that the lining plate is not displaced). Work). In other words, unlike the conventional case, there is no need to build a dedicated scaffold under the lining plate, or the operator does not have to go around the back side of the lining plate and proceed with the fastening work in a narrow space, It is possible to proceed with work only by workers in the area. Therefore, the laying and fixing of the lining plate can be completed by simple work only on the upper side of the lining plate, and it is not necessary to perform any work on the back side of the lining plate or to build a scaffold. Laying and fixing the board becomes simple, and it is possible to complete the work in a shorter time and at a lower cost than before. In addition, since the number of members related to the lining plate is reduced and only the work on the surface side of the lining plate is sufficient, the laying / fixing operation of the lining plate can be proceeded without stagnation. It will be possible to respond to requests reliably.

  In the embodiment described above, the lining plate is arranged so as to be bridged between the beams at both ends among the plurality of parallel beams. That is, unlike the prior art, a plurality of lining plates are not laid in the lateral direction (width direction) between the beams at both ends, so that it is possible to save the work of fixing the lining plates to the beams.

  Further, according to the above-described embodiment, the lining plate is positioned in a “state in which the lining plate is sandwiched between protruding structures protruding from the upper surfaces of the beams at both ends”. As a result, protruding structures (for example, a ground covering material) protruding on both sides of the lining board function as stoppers, and the lateral movement of the lining board is regulated by the stoppers. Lateral displacement can be reliably prevented.

  In the above-described embodiment, in the step of fixing the lining plate, a pressing member for pressing the lining plate arranged on the plurality of beams so as not to move at least in the vertical direction is attached to the protruding structure. It is like that. Therefore, even if a strong wind blows from below on the laid lining plate, or the laid laid plate is subjected to longitudinal vibration, the lining plate will not be lifted and covered. Safety of vehicles and passers-by on the work board is ensured.

  In the above-described embodiment, the pressing member is attached and fixed to the projecting structure in a state where the pressing member is in pressure contact with the lining plate. As a result, since the state in which the lining plate is pressed against the beam forming the girder is maintained for a long period of time, the lining plate after the laying is completed is free from rattling and the lining plate is securely fixed. Can do. In other words, even if the lining plate is somewhat distorted, by pressing the lining plate against the beam continuously from above, the distortion of the lining plate is corrected and lifting from the beam is prevented. it can. Moreover, the noise resulting from the collision of the adjacent lining board etc. reduces by pressing down a lining board from the top and reducing backlash.

  Further, in the above-described embodiment, it is also possible to adopt a mode in which both of the pressing member and the protruding structure are bolted through bolts in a vertical direction or an oblique direction. Thereby, even after the bolt is tightened, the pressing action against the lining plate (the pressing force that the pressing member keeps applying to the lining plate) is sustained for a long time by the oblique or vertical bolts. It is possible to reliably suppress rattling, lateral displacement, and lifting. Further, since there is no backlash, there is less collision between adjacent lining plates, and noise when passing through the vehicle is reduced.

In the above-described embodiment, each lining plate arranged so as to be bridged between the beams at both ends is constituted by an integral structure (one lining plate).
By constructing the lining plate that spans in the width direction as an integral structure (single plate), it is sufficient to fix the edge portions of the lining plate to the beam and lay it on the beam. The work of fixing the lining plates arranged side by side can be performed efficiently and labor-saving. Further, since there is no seam of the lining plate in the width direction, a special effect is achieved in that it is not necessary for the worker to go around the back side of the lining plate and perform the fastening work.
Moreover, as a result of the reduction in the number of cover plates used for construction (ie, the number of members), the length and the number of locations where adjacent cover plates collide with each other are reduced. In other words, when the total area of the lining plates used for construction is the same, the contact length (seam length) of the multiple lining plates placed side by side is shorter, and the noise is better when the number of contact points (number of seam points) is smaller. Therefore, according to the present invention, it is possible to achieve an extraordinary effect that noise during passage of a vehicle or the like can be reduced.
Furthermore, as a result of the reduction in the number of lining plates used for the construction, the number of fixing points of the lining plates is reduced, so that the fixing work of the lining plates can be completed in a short time with labor saving, which can contribute to rapid construction.
Furthermore, by reducing the number of members of the lining plate, the fixing work is simplified as described above, and the effect that the lining plate can be easily and quickly removed when the pier or the like is removed is also achieved. . Moreover, the safety of construction is improved by making it easier to remove the lining plate from the beam.

1 Covering plate 2 Horizontal girder 3 Main girder (beam / lining receiving girder)
4 Upper flange 3 Main girder (beam / lining girder)
5 Ground cover material (protruding structure / protruding structure)
6 Web 7 Lower flange 8 Upper flange 9 Holding member 10 Protruding part 13 Bolt 15 Through-hole 21 Covering plate mounting tool (edge presser)
23 Handle 25 Body 27 Posture fixing bolt (horizontal bolt / reaction securing means)
28 Head 29 Tip (Presser Cap)
31 Bolt holder 33 Pressing bolt (vertical bolt / pressing means)
34 Head 35 Tip (Presser Cap)
37 Pressure receiving part 39 Knurled part 51 Bolt 53 Bolt 55 Bolt 61 Ground covering material (protruding structure / protruding structure)
62 Ground cover material (protruding structure / protruding structure)
63 Holding member 67 Bolt 68 Bolt

Claims (3)

In the tool used to fix the lining board laid on the beam,
A pressing means for pressing the pressing member for pressing the lining plate in the direction of the lining plate;
Reaction force securing means for securing a reaction force for pressing by the pressing means;
A lining plate mounting apparatus comprising: The pressing member is configured to press the upper surface side edge portion of the lining plate,
The said pressing means is comprised so that the said pressing member may be pressed with respect to the upper surface side edge part of a lining board, The lining board attachment instrument of Claim 1 characterized by the above-mentioned.   The said reaction force ensuring means is comprised so that the attitude | position of a lining board fixing instrument may be fixed by taking reaction force to the structure fixed to the beam, The structure of Claim 1 or 2 characterized by the above-mentioned. Lining plate fittings.