Saddle and trestle using the same

Abstract

To provide a saddle capable of reducing labor for stacking the saddle and obtaining sufficient strength and durability, and a trestle using the same.SOLUTION: Since a saddle body 11 is formed of wood, the saddle body 11 can be lightened compared with the steel material, and the labor of stacking a saddle 10 can be greatly reduced. The saddle body 11 is provided with a plurality of reinforcing members 12 extending from one surface in the vertical direction of the saddle body 11 to the other surface so as to penetrate the saddle body 11. Since the respective reinforcing members 12 are arranged at equal intervals so that their ends are in contact with the respective reinforcing members 12 of the other saddle 10 in the vertical direction, the load applied to the upper reinforcing member 12 can be directly transmitted to the lower reinforcing member 12, and the load applied to the wood of the saddle body 11 can be reduced.SELECTED DRAWING: Figure 11

Description

[Technical field]

[0001] The present invention relates to a sandle for supporting a main girder or the like that is temporarily installed on a bridge pier, for example, in bridge construction work, and a mounting base using the same. [Background technology]

[0002] Conventionally, in bridge construction work, there are cases where the main girder is temporarily installed at a high position and then lowered to install it on the pier, and in this case, a platform assembled with sandles that temporarily support the main girder is used (for example, see Patent Document 1). This platform can be formed to any height by multiple vertical stages of sandles, for example, by arranging multiple sandles made of steel material of a specified length in the width direction and stacking them up and down in a grid shape so that their longitudinal directions are perpendicular to each other. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2005-22771 A Summary of the Invention [Problem to be solved by the invention]

[0004] The sandles are made of steel materials such as H-beams, but a typical sandle (150mm x 150mm x 600mm) weighs about 27kg, and transporting and stacking the sandles requires a lot of labor. For example, a sandle that is 3m or higher may be used for lowering the main girder launching installation, and several hundred sandles may need to be stacked on the bridge pier.

[0005] In addition, while the sandle can be made lighter by making it from wood, there is a problem that the sandle on which heavy objects such as the main girders are placed requires high strength, and wood may not have enough strength.

[0006] The present invention has been made in consideration of the above-mentioned problems, and its object is to provide a sandle and a stand using the same that can reduce the labor required for stacking sandles while providing sufficient strength and durability. [Means for solving the problem]

[0007] In order to achieve the above-mentioned object, the present invention provides a sandle having a sandle body formed into a horizontally elongated rectangular column, which is arranged in a plurality of units in the width direction and stacked in the vertical direction to form a stand of any height. The sandle body is formed from wood, and a plurality of reinforcing members are provided which extend through the sandle body from one side in the vertical direction to the other side, and each reinforcing member is arranged at equal intervals so that their ends abut each other against each other of the reinforcing members of other sandles in the vertical direction.

[0008] In addition, in order to achieve the above-mentioned object, the present invention provides a stand using a sandle having the above-mentioned configuration, in which a plurality of sandles are arranged in the width direction and stacked vertically so that their longitudinal directions are perpendicular to each other, thereby forming a stand formed to any desired height using multiple vertical tiers of sandles.

[0009] As a result, the sandle body is made of wood, which makes it lighter than steel. Also, when stacking sandles, the ends of the multiple reinforcing members provided on the sandle body abut against the reinforcing members of other sandles in the vertical direction, so that the load applied to the upper reinforcing members is directly transmitted to the lower reinforcing members. Effect of the Invention

[0010] According to the present invention, the sandle body can be made lighter than steel, so the labor required for stacking the sandles can be significantly reduced and the work time can be shortened. This improves work efficiency and reduces the burden on weak workers due to the light weight, so that the labor required can be widely secured regardless of age or gender. In addition, when stacking the sandles, the load applied to the upper reinforcing member can be directly transmitted to the lower reinforcing member, so the load applied to the wood of the sandle body can be reduced and the strength and durability of the sandle body can be improved. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a top perspective view of a sandle showing an embodiment of the present invention; [Diagram 2] A perspective view of the bottom side of the sandle [Diagram 3] Plan of Sandor [Figure 4] Sandle front view [Diagram 5] Cross-sectional view along line AA [Figure 6] Sandle side view [Figure 7] Side cross-section of sandle [Figure 8] A perspective view of a base member [Figure 9] FIG. 11 is a side cross-sectional view showing an engaged state of the sandle. [Figure 10] A perspective view showing the stacking process of sandles [Figure 11] A perspective view showing the stacking process of sandles [Figure 12] Perspective view of the stand [Figure 13] Side view of the stand DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] 1 to 13 show one embodiment of the present invention, and show a sandle and a platform using the same for supporting a main girder etc. that is temporarily installed on a bridge pier in, for example, bridge erection work.

[0013] The stand 1 of this embodiment comprises a plurality of sandles 10 and a base member 20 arranged below the lowest sandle 10. The sandles 10 are arranged in the width direction and stacked one on top of the other with their longitudinal directions perpendicular to each other, so that the stand 1 can be formed to any height with multiple vertical tiers of sandles 10.

[0014] The sandle 10 has a sandle body 11 formed in a horizontally long rectangular column shape, and wood made of cross-laminated lumber (a well-known wood-based material made by laminating and gluing planks so that the grain directions are perpendicular to each other) is used for the sandle body 11. Note that while the grain of the wood used for the sandle body 11 is shown in Figures 3 to 5, the grain is omitted in the other figures.

[0015] The sandle body 11 is made up of a plurality of first plate materials 11a whose fiber direction is the longitudinal direction of the sandle body 11 and a plurality of second plate materials 11b whose fiber direction is the vertical direction of the sandle body 11, and is formed by alternately stacking the first plate materials 11a and the second plate materials 11b in the width direction of the sandle body 11. In this case, the first plate material 11a is made up of a single plate, and the second plate materials 11b are arranged in a plurality of rows in the longitudinal direction of the sandle body 11, and the first plate materials 11a and the second plate materials 11b are arranged so that their fiber directions are perpendicular to each other.

[0016] The sandle body 11 is provided with a plurality of reinforcing members 12 extending from one surface in the vertical direction to the other surface opposite thereto. Each reinforcing member 12 is formed of a cylindrical member (e.g., a steel pipe, an FRP pipe, etc.) having the same vertical dimension as the sandle body 11, and is embedded in a hole provided in the sandle body 11 so as to penetrate therethrough in the vertical direction.

[0017] An engaging member 13 is provided protruding from the lower end of each reinforcing member 12 as an engaging portion that engages with the upper end of the reinforcing member 12 of another sandle 10. The engaging member 13 is made of a plate-like member and is formed so that its thickness direction is the radial direction of the reinforcing member 12. The engaging member 13 is disposed so that one end protrudes downward from the lower end of the reinforcing member 12, and the corners of the one end are chamfered in a tapered shape. The other end of the engaging member 13 is disposed within the reinforcing member 12, and both widthwise ends of the engaging member 13 are joined to the inner peripheral surface of the reinforcing member 12.

[0018] A plurality of reinforcing members 12 are provided in the width direction and the longitudinal direction of the sandle body 11, and in this embodiment, the reinforcing members 12 are arranged at equal intervals, two by two in the width direction of the sandle body 11 and eight by eight in the longitudinal direction of the sandle body 11. In this case, the intervals between the reinforcing members 12 arranged in the longitudinal direction of the sandle body 11 are equal to the intervals between the reinforcing members 12 arranged in the width direction of the sandle body 11.

[0019] Also, some of the reinforcing members 12 are arranged so that the thickness direction of the engaging members 13 faces the longitudinal direction of the sandle body 11, and other reinforcing members 12 are arranged so that the thickness direction of the engaging members 13 faces the width direction of the sandle body 11. In this embodiment, the reinforcing members 12 arranged in the longitudinal direction of the sandle body 11 are arranged so that the thickness direction directions of the engaging members 13 differ from one another, and the reinforcing members 12 arranged in the width direction of the sandle body 11 are arranged so that the thickness direction directions of the engaging members 13 differ from one another.

[0020] The base member 20 is formed of a flat wooden plate with one side approximately equal to the longitudinal length of the sandle 10. A plurality of engaging members 21 engageable with the engaging members 13 of the sandle 10 are provided on the upper surface of the base member 20, and the engaging members 21 are formed of cylindrical members having the same outer and inner diameters as the reinforcing members 12 of the sandle 10. The base member 20 has eight engaging members 21 in each of the vertical and horizontal directions, arranged at equal intervals as the reinforcing members 12 of the sandle 10.

[0021] 10 to 12 show a configuration example of a stand formed using the sandles 10. In this configuration example, first, the lowest sandle 10 is placed on the base member 20 as shown in FIG. 10. In this case, four sandles 10 are arranged in the width direction. Next, the second sandle 10 is placed on the lowest sandle 10 as shown in FIG. 11. In this case, the four sandles 10 are arranged in the width direction so that their longitudinal directions are perpendicular to the first sandle 10. In this way, a stand 1 of any height is formed by stacking multiple sandles 10 one above the other as shown in FIG. 12. In this configuration example, two sandles 10 are arranged in two stages on the upper surface of the third sandle 10, close to one end in the width direction, and a jack J is placed on the other end in the width direction.

[0022] When assembling the stand 1, the intervals between the reinforcing members 12 arranged in the longitudinal direction of the sandle body 11 are equal to the intervals between the reinforcing members 12 arranged in the width direction of the sandle body 11, so that the reinforcing members 12 of the sandles 10 in the upper and lower stages abut against each other from above and below as shown in Fig. 13, and the load applied to the upper reinforcing member 12 is directly transmitted to the lower reinforcing member 12. Furthermore, when stacking the sandles 10, the engaging members 13 of the upper sandle 10 engage with the reinforcing members 12 of the lower sandle 10, thereby positioning the sandles 10 relative to each other.

[0023] Thus, according to this embodiment, since the sandle body 11 is made of wood, it can be made significantly lighter than steel, and the labor required for stacking the sandles 10 can be reduced. This allows the work time to be shortened, improving work efficiency, and the weight reduction reduces the burden on weak workers, ensuring a wide range of human labor regardless of age or gender.

[0024] Furthermore, the sandle body 11 is provided with a plurality of reinforcing members 12 that extend from one surface of the sandle body 11 to the other surface in the vertical direction so as to penetrate the sandle body 11, and the reinforcing members 12 are arranged at equal intervals so that their ends abut against the reinforcing members 12 of other sandles 10 in the vertical direction, so that the load applied to the upper reinforcing members 12 can be directly transmitted to the lower reinforcing members 12, and the load applied to the wood of the sandle body 11 can be reduced. This improves the strength and durability of the sandle body 11. At this time, since the reinforcing members 12 are provided so as to be embedded in the wood of the sandle body 11, the wood surrounding the reinforcing members 12 can also suppress buckling deformation of the reinforcing members 12.

[0025] Furthermore, the wood used for the sandle body 11 is orthogonal laminated timber, which is made by stacking multiple boards with their fiber directions perpendicular to each other. This provides greater strength and uniformity in quality compared to natural wood (solid wood), thereby improving the sandle's performance as a material for supporting heavy loads.

[0026] In this case, the sandle body 11 is formed by stacking a plurality of first plate materials 11a whose fiber direction is the longitudinal direction of the sandle body 11 and a plurality of second plate materials 11b whose fiber direction is the vertical direction of the sandle body 11. Therefore, the compressive strength in the vertical direction can be increased by the second plate materials 11b whose fiber direction is the direction in which the load is applied (vertical direction), thereby improving the yield strength.

[0027] Furthermore, since each reinforcing member 12 is formed of a tubular member extending in the vertical direction, the inside of the reinforcing member 12 can be made hollow, and the weight of the sandle body 11 can be reduced.

[0028] Furthermore, since an engagement member 13 is provided at one vertical end of each reinforcing member 12 to engage with the other end of the reinforcing member 12 of another sandle 10, when stacking the sandles 10, the positioning of the sandles 10 can be easily performed by engaging the engagement member 13 with the reinforcing member 12, further improving the work efficiency. Furthermore, even if a horizontal force is applied to the stacked sandles 10, the engagement between the engagement member 13 and the reinforcing member 12 can prevent the sandles 10 from shifting from one another.

[0029] Furthermore, since the engaging member 13 is formed of a plate-like member whose thickness direction is the radial direction (horizontal direction) of the reinforcing member 12, the sandle body 11 can be made lighter than when the engaging member 13 is formed in a circle over the entire radial direction of the reinforcing member 12. In this case, the engaging member 13 has higher strength in the direction perpendicular to the plate thickness than in the plate thickness direction, but since the engaging members 13 of some of the reinforcing members 12 are provided so that their thickness direction is different from the thickness direction of the engaging members 13 of the other reinforcing members 12, even if the engaging members 13 are formed in a plate shape, strength against horizontal forces in any direction can be ensured.

[0030] In addition, in the stand 1, the sandles 10 are positioned so that the engaging members 13 are located on the underside of the sandles 10, so that the upper surface of the topmost sandle 10 can always be kept flat and free of protrusions, which is extremely advantageous when placing a supported object or other materials such as a jack J on the stand 1.

[0031] In this case, a base member 20 having an engagement member 21 on its upper surface that engages with the engagement member 13 on the underside of the sandle 10 is arranged below the lowest sandle 10. By engaging the engagement member 13 of the lowest sandle 10 with the engagement member 21 of the base member 20, the positioning of the lowest sandle 10 can be easily achieved, and since the engagement member 13 of the lowest sandle 10 does not come into contact with the installation surface, the stand 1 can be installed stably.

[0032] The stand of the present invention is not limited to the configuration example shown in the above embodiment, but can be configured in a variety of ways depending on the site of use, such as the number of arrangements of sandles 10, the number of tiers, and the stacking form.

[0033] Moreover, the number and arrangement of the reinforcing members 12 shown in the above embodiment are merely examples, and the present invention is not limited to these. [Explanation of symbols]

[0034] 1... stand, 10... sandle, 11... sandle body, 11a... first plate member, 11b... second plate member, 12... reinforcing member, 13... engaging member, 20... base member, 21... engaging member.

Claims

1. A sandle having a sandle body formed in a horizontally elongated rectangular column shape, a plurality of which are arranged in the width direction and stacked in the vertical direction to form a stand of any height, The sandle body is made of wood, A plurality of reinforcing members are provided so as to extend through the sandle body from one surface to the other surface in the vertical direction of the sandle body; The reinforcing members were arranged at equal intervals so that their ends abutted against the reinforcing members of other sandles in the vertical direction. A sander characterized by the above.

2. As the wood, a cross-laminated timber made by laminating a plurality of boards so that the fiber directions are perpendicular to each other is used, The sandle body is formed so that the fiber direction of some of the plate materials is the longitudinal direction and the fiber direction of the other plate materials is the vertical direction.

2. The sandle of claim 1.

3. The reinforcing member is formed of a cylindrical member extending in the vertical direction.

2. The sandle of claim 1.

4. An engaging portion is provided at one end of the reinforcing member in the vertical direction to be engaged with the other end of the reinforcing member of another sandle.

2. The sandle of claim 1.

5. The engaging portion is formed of a plate-like member whose thickness direction is horizontal, Some of the reinforcing members are provided so that the thickness direction of the engagement portion is different from the thickness direction of the engagement portion of the other reinforcing members.

5. The sandle according to claim 4.

6. A stand using the sandle according to any one of claims 1 to 5, A plurality of sandles are arranged in the width direction and stacked vertically so that their longitudinal directions are perpendicular to each other, so that a sheet is formed at any height by multiple layers of sandles in the vertical direction. A stand characterized by:

7. A stand using the sandle according to claim 6, A base member is disposed below the bottom sandle and has an engagement portion on an upper surface thereof that engages with the engagement portion of the sandle; The sandle is arranged so that the engagement portion is located on the lower surface side. A stand characterized by:

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