JP2023170048A - Timbering - Google Patents

Abstract

To provide a timbering configured to eliminate the need to separately allocate braces and pipe supports to a floor slab part and a beam part when disposing the braces and the pipe supports.SOLUTION: With respect to a temporary construction body (S1) constructed by mutually connecting braces (1) arranged so as to be spaced away from each other in a girder direction (X) and a beam direction (Y), a girder structure body (Sv), which has a rigid structure and extends through a space below a floor slab part and a beam part, is formed on an upper end of the temporary construction body by connecting upper ends of adjacent braces with each other by a horizontal device (20) having a truss structure. The horizontal device (20) is configured to allow a sleeper material to be installed at an arbitrary position across almost the entire length between the adjacent braces so that a timbering (S3) is erected on the sleeper material (2) installed at a prescribed installation position that is arbitrarily selected.SELECTED DRAWING: Figure 20

Description

The present invention relates to shoring that supports forming members such as formwork for forming slabs and beams of a building frame.

For example, when pouring concrete to form a building frame such as a slab, pillars 1 are placed in rows at intervals in the girder direction X and beam direction Y, as shown in Figures 1 to 3. After constructing the temporary structure S1 to a height position where a worker can work by interconnecting them, the large tensioning material 2 is installed on top of it via the support device S2, and the expansion and contraction adjustment is performed on the large tensioning material 2. A shoring S3 constructed by a pipe support 3 equipped with means is erected, and thereby the shoring S3 that supports forming members such as shedding boards and formwork for forming the frame from below via joists etc. It has been implemented.

At this time, the adjacent columns 1, 1 are connected in the girder direction They are connected by handrails and scaffolding boards with fabric frames.

The strut 1 has fastening members 6 protruding from its outer periphery arranged at intervals in the vertical direction, and fastening means 7 provided at both ends of the horizontal members 4 and 5 are fastened together. In the case of the illustrated example, the fastening member 6 is constituted by a flange provided with a plurality of (for example, four) wedge holes in the circumferential direction, and the fastening means 7 holds the wedge piece with the flange sandwiched between the bifurcated members. A wedge fastening type is used, which connects by driving. However, a type of fastening means different from the wedge fastening type may be employed.

The support device S2 is configured such that a support fitting 8 with a jack that is inserted into the upper end of the support column 1 is usually used, and the large pulling material 2 is mounted on a receiving part 9 provided on the support fitting 8. By rotating the jack handle of the support fitting 8, the receiving portion 9 can be raised and lowered.

The pipe support 3 constituting the shoring S3 constitutes a telescoping tube in which a lower outer tube 10 and an upper inner tube 11 are telescopically fitted, and the inner tube 11 is spaced apart in the axial direction. The engaging pin 14 is inserted through the engaging hole 12 provided at the opening and the slit 13 of the outer tube 10, and the engaging pin 14 is supported from below by an adjustment nut 15 screwed onto the outer tube 10. has been done. Therefore, by selecting the engagement hole 12 through which the engagement pin 14 is inserted and by moving the adjustment nut 15 up and down, an expansion/contraction adjustment means is configured that can adjust the extension distance of the outer tube 10 and the inner tube 11.

The outer pipe 10 is configured such that a base plate 16 fixed at the lower end is placed on the large tension material 2 and fixed with screws or other fasteners, so that the pipe support 3 will be erected.

Incidentally, when constructing the temporary structure S1, scaffolding boards 17 with cloth frames are installed on the adjacent beam-oriented horizontal members 5, 5, and the scaffolding boards 17 arranged on the top layer support the supporting devices S2 and A working floor is provided for forming the shoring S3.

In this way, the struts 1 of the temporary structure S1 and the pipe supports 3 of the shoring structure S3 are arranged on the same axis, so that they are configured to coaxially support a load from above.

Japanese Patent Application Publication No. 2018-188901 Japanese Patent Application Publication No. 2019-151986

By the way, as shown in FIG. 1, regarding a frame in which slabs and beams are arranged alternately in the girder direction When supporting the beam-forming member F2 such as a formwork for the purpose of the present invention, in the case of the conventional technology, the support column 1 is divided into the floor slab part and the beam part, and the pipe support 3 is arranged on the axis of each support column 1. As a result, shoring will be constructed.

Therefore, as shown in the figure, when constructing the temporary structure S1, the pillars 1 are allocated at intervals La in the floor slab part (below the slab forming member F1), and in the beam part (below the beam forming member F2). side) with an interval Lb. Furthermore, since the pipe supports 3 are allocated to each support column 1, there is a problem that the number of columns 1 and pipe supports 3 increases unnecessarily. Moreover, since the construction is carried out by dividing the floor slab part and the beam part and assigning the supports 1 to each part, there is a problem that the construction takes time and effort, leading to high costs.

The present invention provides a shoring structure that solves the above problems.

Therefore, the present invention is configured as a means by connecting columns (1) arranged in rows at intervals in the girder direction (X) and beam direction (Y) to the girder-oriented horizontal members (4) and the beam-oriented horizontal members. At the top of the temporary structure (S1) constructed by interconnecting the timbers (5), the large tension members (2) extending in the beam direction are placed at intervals in the girder direction, and the In the shoring that supports the slab forming member (F1) and beam forming member (F2) of the frame by erecting the shoring (S3) above, the temporary structure (S1) is located at the upper end of the adjacent support. A girder structure (Sv) with a rigid structure is formed at the upper end of the temporary structure by connecting them to each other with a horizontal suspension device (20) having a truss structure, which extends through the space below the slab forming member and the beam forming member. The horizontal suspension device (20) is configured so that the large tensioning material can be installed at any position over almost the entire length between adjacent pillars, and it is possible to select from the arbitrary position. The bulk material (2) is installed at the predetermined installation position determined by the method, and by erecting the support (S3) on top of the material, the slab forming member (F1) and the beam forming member (F2) are installed. ).

The horizontal suspension device (20) includes an upper horizontal member (22) and a lower horizontal member (23) made of metal pipes arranged vertically in parallel, and a pair of vertical members made of metal pipes connecting both ends of the upper and lower horizontal members. The framework of the parallel chord truss structure is constructed by the metal pipe bundle members (25) and diagonal members (26) that connect the upper and lower horizontal members between the pair of vertical members (24), and the upper horizontal members ( 22) are provided with fastening means (7a) fastened to the upper end of the support column (1) in the temporary structure.

The upper end of the diagonal member (26) placed between adjacent bundle members (25) (25) is connected to the upper end of the bundle member (25) and the upper horizontal member (22) via the metal plate (27). combined.

The lower end of the diagonal member (26) placed between adjacent bundle members (25) (25) is connected to the lower end of the bundle member (25) and the lower horizontal member (23) via the metal plate (29). combined.

The diagonal member (26) placed between the vertical member (24) and the bundle member (25) has its upper end facing the upper end of the vertical member (24) and its lower end facing the lower end of the bundle member (25). The upper end of the diagonal member (26) is connected to the upper end of the vertical member (24) and the upper horizontal member (22) via a metal plate (27).

The diagonal member (26) placed between the vertical member (24) and the bundle member (25) has its upper end facing the upper end of the vertical member (24) and its lower end facing the lower end of the bundle member (25). The lower end of the diagonal member (26) is connected to the lower end of the bundle member (25) and the upper horizontal member (22) via a metal plate (29).

Preferably, a metal reinforcing plate (27) extending longitudinally along the lower surface of the upper horizontal member (22) is fixed between the pair of vertical members, and the bundle member (25) and the reinforcing plate are fixed to the reinforcing plate. A band-shaped rigid portion (28) is formed by fixing the diagonal member (26).

In a preferred embodiment, the central axis (25x) of the bundle member (25) of the horizontal suspension device and the central axis (26x) of the diagonal member (26) are such that the upward axis extension portion is at the center of the upper horizontal member (22). They intersect near the axis (22x), and the downward axis extensions intersect near the central axis (23x) of the lower horizontal member (23).

The support column (1) of the temporary structure has a configuration in which fastening members (6) protruding from the outer periphery are arranged at intervals in the vertical direction, and the horizontal suspension device (20) has vertical members (24). is provided with a mounting piece (30) and a gripping means (31), and with the fastening means (7a) of the upper horizontal member (22) fastened to the fastening member (6) at the upper end of the column, the front By placing the writing piece (30) on the fastening member (6) arranged under the column and gripping the column (1) with the gripping means (31), the vertical member (24) The middle part of the vertical direction is connected laterally to the column (1).

According to the present invention, the temporary structure S1 is constructed by erecting columns 1 at equal intervals Lk, and by connecting the upper ends of adjacent columns 1 with the horizontal suspension device 20, the floor slab A girder structure Sv having a rigid structure is formed that extends through the section (lower side of the slab forming member F1) and the beam section (lower side of the beam forming member F2). Then, after installing the bulk material 2 at an arbitrarily selected position on the frame means 21 of the horizontal frame device 20, regardless of the position where the pillar 1 is erected, the shoring S3 is erected. Therefore, unlike the conventional technology, the number of columns 1 and pipe supports 3 does not increase unnecessarily, and moreover, the labor and time for construction can be saved and costs can be reduced.

FIG. 2 is a front view showing a shoring structure according to the prior art. Regarding the prior art, (A) is an enlarged view of section E in FIG. 1, and (B) is a perspective view showing a column, a supporting metal fitting, a lumber, and a pipe support. FIG. 3 is a perspective view illustrating a state in which pillars are connected and a state in which scaffolding boards are installed on beam-oriented horizontal members, regarding the prior art. FIG. 1 is a front view showing one embodiment of a shoring structure according to the present invention. FIG. 2 is a perspective view showing a temporary structure including a girder-oriented horizontal suspension device, a large tension member, and a pipe support in accordance with an embodiment of the present invention. One embodiment of a girder-oriented horizontal suspension device is shown, in which (A) is a front view, (B) is a sectional view taken along line AA, and (C) is a sectional view taken along line BB. FIG. A vertical cross-section of the girder-oriented horizontal suspension system is shown, (A) is a vertical cross-sectional view showing the whole, (B) is an enlarged view showing the joints of the upper chord members, bundle members, and diagonal members, and (C) is the lower chord member and bundles. FIG. 3 is an enlarged view showing a joint between a diagonal member and a diagonal member. FIG. 3 is a perspective view showing a state in which the girder-oriented horizontal suspension device faces the support column. It shows the mounting piece and holding means provided on the vertical member of the girder-oriented horizontal suspension device, where (A) is a perspective view showing the left vertical member, and (B) is a perspective view showing the right vertical member. . FIG. 2 is a perspective view showing a temporary structure constructed by connecting columns with a girder-oriented horizontal frame device and a beam-oriented horizontal frame member. FIG. 3 is a perspective view showing a state in which scaffolding boards are installed on the beam-oriented horizontal members of the temporary structure. FIG. 2 is a perspective view showing a state in which a support device is mounted on a girder-oriented horizontal suspension device. 2A is a cross-sectional view showing a support device in which shielding members are attached to both sides of the pedestal means, and FIG. 3B is a sectional view showing the support device in which a shielding member is attached to one side of the pedestal means. FIG. 3 is a perspective view showing the supporting device in an exploded state. FIG. 3 is a cross-sectional view showing the supporting device in an exploded state. FIG. 14 is a perspective view showing a state in which the bulk material is installed on the support device from the state shown in FIG. 13; FIG. 3 is a cross-sectional view showing a state in which a large tension member is installed on the frame means of the support device. 19 is a sectional view taken along the line CC in FIG. 18. FIG. FIG. 18 is a perspective view showing a state in which the pipe support is erected from the state shown in FIG. 17 to the large tension material.

Preferred embodiments of the present invention will be described in detail below based on the drawings. Note that technical components that are the same or similar to those of the prior art described based on FIGS. 1 to 3 are indicated by the same reference numerals as those shown in FIGS. 1 to 3.

As shown in FIGS. 4 and 5, the temporary structure S1 is constructed to a height position where a worker can work by interconnecting the columns 1 arranged at intervals in the girder direction X and the beam direction Y. A shoring structure S3 is constructed by installing a large lumber 2 on top of the lumber 2 via a support device S2, and erecting a pipe support 3 equipped with an expansion/contraction adjusting means on the lumber 2. This point is similar to the prior art described above. At this time, the pipe support 3 may have the same structure as the conventional pipe support 3 described with reference to FIGS. 1 to 3.

When constructing the temporary structure S1, the adjacent columns 1, 1 are connected by girder-oriented horizontal members 4 and beam-oriented horizontal members 5, respectively, in the girder direction They are connected by a leading handrail and a scaffold board 17 with a cloth frame as shown. At this time, with respect to the girder direction X, the columns 1 are arranged in a row at equal intervals Lk, and the upper ends of adjacent columns 1 are connected by a horizontal suspension device 20. As a result, the temporary structure S1 has a girder structure Sv that is located at the upper end and has a rigid structure extending in the girder direction X.

That is, in the temporary structure S1, the support columns 1 are not allocated according to the floor slab portion (lower side of the slab forming member F1) and the beam portion (lower side of the beam forming member F2) as in the conventional technology. , without distinguishing between the floor slab part and the beam part, the pillars 1 are arranged in a row at equal intervals Lk in the girder direction X, thereby connecting the upper ends of the adjacent pillars 1. A large number of horizontal suspension devices 20 form a girder structure Sv extending in the girder direction through the floor slab portion and the beam portion.

A pedestal means 21 is provided on the upper part of the horizontal rack device 20, and the pedestal means 21 allows the large tension material 2 to be installed at any position along almost the entire length extending between the pair of adjacent columns 1, 1. , a support device S2 for installing the bulk material 2 is constructed on the girder structure Sv.

Therefore, by selecting an arbitrary position on the frame means 21, a predetermined installation position is determined, and after installing the large tension material 2 at that installation position, the pipe support 3 is placed on the large tension material 2. By erecting the shoring S3, the shoring S3 is configured to support the slab forming member F1 and the beam forming member F2 from below.

In other words, as shown in the figure, the temporary structure S1 does not have the floor slab part (the lower side of the slab forming member F1) and the beam part (the lower side of the beam forming member F2) separately. Through this structure, struts 1 are erected at regular intervals Lk, and a large number of girder-oriented horizontal suspension devices 20 connecting the upper ends of adjacent struts 1 form a rigid girder structure Sv extending in the girder direction. Then, irrespective of the position where the support column 1 is erected, the large pull material 2 is installed at an arbitrarily selected position on the frame means 21 of the horizontal rack device 20, and the pipe support 3 is erected. Because of this structure, there is no problem that the number of columns 1 and pipe supports 3 is increased unnecessarily as in the prior art, and there is also no problem that it takes time and effort for construction and causes high costs.

(Horizontal rack device)
6 to 10 illustrate a preferred embodiment of the cross-traffic device 20. FIG. As described above, the horizontal rack device 20 forms the girder structure Sv, which is a rigid structure located at the upper end of the temporary structure S1 and extends in the girder direction , is configured to support the large tension material 2 at any arbitrary position over almost the entire length in the girder direction, and is therefore formed of a truss structure framework as shown in the drawings.

The horizontal rack device 20 is a pair of metal pipes that connect both ends of the upper and lower horizontal members 22 and 23, with upper and lower horizontal members 22 and 23 made of metal pipes arranged vertically in parallel as upper and lower chord members. A framework of a parallel chord truss structure is constructed by providing vertical members 24 and metal pipe bundle members 25 and diagonal members 26 that connect the upper and lower horizontal members 22 and 23 between the pair of vertical members. Note that each metal pipe has a circular cross section.

At this time, binding means 7a are provided at both ends of the upper horizontal member 22, and by tightening the binding means 7a to the binding member 6 disposed at the upper end of the support column 1 in the temporary structure S1. , the upper ends of the pair of support columns 1, 1 are connected to each other by a horizontal suspension device 20. In the case of the illustrated embodiment, the fastening structure between the fastening means 7a and the fastening member 6 is the same as the wedge fastening type between the fastening means 7 of the horizontal members 4 and 5 and the fastening member 6 of the strut 1 described in relation to the prior art. Although a fastening structure is adopted, it is not limited to this.

In the illustrated embodiment, the bundle material 25 is arranged at the center so as to divide a horizontally long rectangular framework space surrounded by the upper horizontal material 22, the lower horizontal material 23, and the vertical materials 24, 24 into four in the girder direction. It is composed of a total of three metal pipes, including a central bundle member 25C, a left bundle member 25L and a right bundle member 25R arranged on the left and right, each having its upper end fixed to the lower surface of the upper horizontal member 22 by welding or the like, The lower end portion is fixed to the upper surface of the lower horizontal member 23 by welding or the like.

The diagonal member 26 is constituted by a total of four metal pipes arranged in a V-shape on the left and right with the left bundle member 25L and right bundle member 25R in between.

At this time, in the framework configuration of the above-mentioned parallel chord truss structure, the horizontal suspension device 20 has a band-shaped metal plate 27 extending in the longitudinal direction along the lower surface of the upper horizontal member 22 between the pair of vertical members 24, 24. It is set up. The metal plate 27 has both end edges fixed to the inner surfaces of the vertical members 24, 24 by welding or the like, and an upper edge fixed to the lower surface of the upper horizontal member 22 by welding or the like. Moreover, the metal plate 27 is held in a fit state in diametrical grooves 25a and 26a formed near the upper ends of the bundle member 25 and the diagonal member 26, and is fixed by welding or the like.

The metal plate 27 may be formed of a short metal plate similar to the lower metal plate 29 described later, in addition to being a band-shaped metal plate as shown in the figure. As shown in FIG. 8(A), in the upper region of the horizontal suspension device 20, not only the upper horizontal member 22 is reinforced over the entire length by a metal plate 27, but also the upper horizontal member 22 is reinforced by using this metal plate 27 as a reinforcing plate 27. The upper parts of the vertical members 24 and 24 are connected and integrated, and the bundle member 25, the diagonal member 26, and the upper part of the vertical member 24 are connected and integrated, thereby forming a strong band-shaped rigid part 28. It turns out.

In the lower part of the horizontal suspension device 20, with respect to the upper band-shaped rigid part 28, a short metal plate 29 is arranged at the lower end of the left bundle material 25L and the right bundle material 25R, and below the metal plate 29. The edge portion is fixed to the upper surface of the lower horizontal member 23 by welding or the like. The metal plate 29 is held in a fit state in diametrical grooves 25b and 26b formed near the lower ends of the bundle member 25 and the diagonal member 26, and is fixed by welding or the like.

In the above framework, as shown in FIG. 8(A), the central axis 25x of the bundle material 25 and the central axis 26x of the diagonal member 26 are such that the upward axis extension portion is near the central axis 22x of the upper horizontal member 22. They intersect, and the downward axis line extensions intersect near the center axis 23x of the lower horizontal member 23.

A test was conducted to confirm the strength of the horizontal suspension device 20 with respect to the above-described framework configuration. The test was conducted on a product implementing the present invention as shown in the figure, a comparative product 1 in which the metal plate 27 is not provided, and a comparative product 2 in which the inclination angle of the diagonal member 26 is different from the above (in other words, the central axes 25x and 26x are vertically The test was carried out by measuring the downward deflection that occurs when the upper horizontal material receives a vertical load of 2 t (for horizontal materials that do not intersect in the vicinity of the center axes 22x and 23x). As a result, both Comparative Product 1 and Comparative Product 2 were measured to have a downward deflection exceeding 3 mm, and were judged to be unsuitable as support structures in shoring. In contrast, the product of the present invention had a downward deflection of 3 mm or less, which confirmed its excellent strength, and it was determined that it could be used as a suitable support structure for shoring.

In a preferred embodiment, it is preferable that the horizontal member 20 is provided with a mounting piece 30 and a gripping means 31 on the vertical members 24, 24, and as described above, the fastening means 7a of the upper horizontal member 22 is attached to the upper end of the column 1. The mounting piece 30 is placed on the tightening member 6 disposed below the support column 1 in a state of being tightened to the tightening member 6, and the support column 1 is held by the gripping means 31. is preferred.

As shown in FIG. 10, the gripping means 31 and the mounting piece 30 constitute a unit 33 that is positioned above and below a support fitting 32 having a substantially U-shaped cross section and is fixed to the vertical member 24. , is attached by fixing the support fitting 32 by welding or the like.

At this time, the mounting pieces 30 of the left unit 33L attached to the left vertical member 24 and the right unit 33R attached to the right vertical member 24 must be placed at the same height position. are placed on the fastening members 6 of the struts 1, 1, but the gripping means 31 are arranged at different height positions. In the illustrated example, the gripping means 31 of the left unit 22L is arranged at a higher position than the gripping means 31 of the right unit 22R. As a result, as shown in FIG. 11, the gripping means 31, 31 of the adjacent units 33L, 33R interfere with each other between the horizontal rack devices 20, 20 provided on both sides of the support column 1 in the girder direction X. The support column 1 is held in a state in which it is arranged vertically without moving.

The gripping means 31 includes a U-shaped groove-shaped member 31a that holds the outer periphery of the support column 1, and a wedge member 31b that is driven across the groove-shaped member 31a, so that the support column 1 can be loosely attached to the groove-shaped member 31a. By driving the wedge member 31b in the inserted state, the strut 1 is tightly connected so as to be gripped by the groove-shaped member 31a. At this time, as shown in FIG. 10, between the left unit 33L and the right unit 33R, the gripping means 31, 31 are preferably arranged so that the openings of the groove-shaped member 31a are in opposite directions. .

(Top layer work floor)
In the temporary structure S1 constructed as described above, the adjacent columns 1, 1 are connected in the girder direction As such, the upper ends of the columns 1, 1 adjacent in the girder direction X are connected by a horizontal suspension device 20.

Therefore, as shown in FIG. 12, a scaffold board 17a with a fabric frame is installed between the beam-oriented horizontal members 5, 5 that connect the upper ends of the pillars 1, and the temporary structure S1 is A floor is formed, providing a scaffold for further operations.

(Support device)
In the temporary structure S1 constructed as described above, the upper horizontal member 22 of the horizontal rack device 20 is provided with a frame means 21, as shown by the chain line in FIG. A support device S2 for installing the material 2 is formed.

The specific configuration of the support device S2 is not particularly limited, and for example, the upper horizontal member 22 of the horizontal rack device 20 itself is used as the frame means 21, the large tension member 2 is installed on it, and the wires etc. Although it may be configured to be fixed as the fixing means 34, in the case of the preferred embodiment shown in FIGS. It is constituted by a fixing means 34 consisting of an elongated body attached.

In the case of the illustrated embodiment, the mount means 21 is formed of an extrusion molded material of metal such as aluminum, and includes a mounting means 35 constituted by a downward groove portion that holds the upper horizontal member 22 of the horizontal rack device 20 from above, and It is equipped with a fixed holding means 36 constituted by an upward groove for holding the means 34, and the fixing means 34 (elongated body) can be inserted and removed from the longitudinal end of the mount means 21 into the fixed holding means 36 (upward groove). It is configured to be fixed by inserting it into the

At this time, opposing ribs are provided to protrude from the upper ends of both side walls 36a, 36a forming the groove walls of the upward groove constituting the fixed holding means 36, and the upward groove opening of the upward groove is formed so as to be narrowed. The inserted fixing means 34 is held in such a way that it cannot escape from the groove opening, and a rail-shaped support portion 36b is formed that includes the rib and extends in the longitudinal direction of the gantry means 21. Note that after inserting the fixing means 24, both ends of the upward groove are closed by the closing members 37. Therefore, as shown in FIG. 15, holes 37b for inserting and fixing screws 37a for fixing the closing member 37 are provided at both ends of the pedestal means 21.

The mounting means 35 of the gantry means 21 may be of any type as long as it can mount the gantry means 21 on the upper horizontal material 22 of the horizontal rack device 20, and its specific configuration is not limited, but the mounting means 35 of the illustrated embodiment may be used. In this case, the upper horizontal member 22 is formed by a downward groove portion with both side walls 35a, 35a into which the upper horizontal member 22 is loosely fitted, and an elastic holding piece 38 made of a plate spring or the like is provided in a window hole 35b opened in one side wall 35a. There is. As a result, when the upper horizontal member 22 is pushed into the downward groove from below, the elastic holding piece 38 retreats through elastic deformation, fits the upper horizontal member 22 into the downward groove, and then returns to its original state. This elastically urges the upper horizontal member 22 to come into pressure contact with the other side wall 35a. At this time, the groove bottom (upper wall) of the downward groove is formed with an arc-shaped support surface 35c that follows the surface of the upper horizontal member 22 made of a metal round pipe, and this allows the mount means 21 to be held in the upper horizontal position. It is configured to be mounted on the material 22 in a stable state.

The fixing means 34 may be anything that fixes the large tension material 2 installed on the frame means 21, and its specific configuration is not limited, but in the illustrated embodiment, fixing means such as wood screws or nails may be used. It is made of a material that can be fixed when the tool 39 is driven in, for example, a wood material such as natural wood or synthetic wood, and is formed by an elongated body that extends almost the entire length of the fixing and holding means 36 (upward groove portion) of the mount means 21. ing.

At this time, the fixing means 34 has a regular polygonal cross section with a plurality of fixing surfaces 34a in the circumferential direction of the outer periphery (in the case of the illustrated example, a square cross section), whereas the fixing means 36 ( The cross-sectional shape of the upward groove 36 is formed so that the cross section of the fixing means 34 can be held from the periphery, and one fixing surface 34a is exposed to the upward groove opening of the upward groove 36 while being held. There is.

In other words, the fixing means 34 and the fixing holding means 36 (upward groove) are fixed and held by inserting the fixing means 34 into the upward groove with any fixing surface 34a of the plurality of fixing surfaces facing the groove opening. It is configured so that it can be done. Therefore, when constructing and dismantling the shoring repeatedly, as will be described later, the fixing surface 34a of any one of the fixing means 34 may be made of wood by driving the fixing tool 39 for fixing the lumber 2. Even if it is destroyed, by replacing the same fixing means 34 with the fixed holding means 36 (upward groove part), another new fixing surface 34a can be used facing the groove opening. , there is an advantage that the fixing means 34 can be used repeatedly depending on the number of fixing surfaces 34a.

By the way, as mentioned above, the scaffold board 17a with a cloth frame is installed between the beam-oriented horizontal members 5, 5 to form a work floor. The pedestal means 21 is configured to be installed at approximately the same height as the surface of the scaffolding board 17a or at a position slightly higher than that.

Therefore, the mount means 21 is configured so that wing-shaped shielding members 40 can be detachably attached to both sides, and when mounted on the upper horizontal member 22 of the horizontal rack device 20, the shielding member 40 It is preferable to configure so that the gap between the horizontal member 22 and the scaffold board 17a is closed.

The specific configuration for mounting the shielding member 40 is not particularly limited, but in the illustrated embodiment, both side walls 36a, 36a of the upward groove 36 have side openings and narrow openings. A groove-shaped mounting portion 41 is formed by the bag-shaped groove. On the other hand, the shielding member 40 is formed of an extrusion molded material of metal such as aluminum into a strip shape extending over the entire length of the pedestal means 21, and is provided with a plate-shaped mounting portion 40a at its base end. Therefore, the shielding member 40 is mounted on both sides of the pedestal means 21 by inserting the plate-like mounting portions 40a into the groove-shaped mounting portions 41 from the ends of the pedestal means 21 and sliding them.

For this reason, as shown in FIGS. 13 and 14, the gantry means 21 is installed with the fixing means 34 attached to the upward groove portion 36 and the shielding member 40 attached to the groove attachment portion 41, and the girder-oriented horizontal suspension device 20 It is mounted on the upper horizontal member 22 of.

As shown in the figure, the shielding member 40 is configured to be removably attached to the groove-shaped attachment parts 41, 41 on both sides of the pedestal means 21, so if necessary, the shielding member 40 can be attached only to one side. The mounted frame means 21 can be mounted on the upper horizontal member 22.

The frame means 21 mounted on the upper horizontal member 22 of the horizontal rack device 20 as described above allows the large tension member 2 to be installed at any position over almost the entire length extending in the girder direction X between the columns 1 and 1. A rail-shaped support portion 36b is provided.

As a result, as shown in FIGS. 17 to 19, the large tension members 2 extending in the beam direction Y are installed on the frame means 21 at intervals in the girder direction X.

At this time, the installed large tension material 2 is fixed at the installation position by driving fixing tools 39 such as wood screws or nails downward from both sides in the girder direction X and inserting them into the fixing means 34. In this way, the large tension material 2 installed on the frame means 21 can be quickly fixed by driving in the fixing tool 39, which is a simple and easy work such as carpentry work. Furthermore, expensive metal fittings are not required for fixing, and inexpensive wood screws and nails are sufficient, so construction can be carried out at low cost.

Thereafter, as shown in FIG. 20, the pipe support 3 is erected at a predetermined position of the lumber 2, thereby completing the shoring as shown in FIG.

As shown in the figure, the temporary structure S1 is constructed by using a large number of horizontal suspension devices 20 that connect the upper ends of adjacent columns 1 to a floor slab portion (below the slab forming member F1) and a beam portion (beam forming member Since the girder structure Sv extending in the girder direction is formed through the lower side of the slab forming member F1 and the beam forming member F2 is provided thereon, the mount means 21 extending in the girder direction X is provided. A large tension member 2 is installed at an arbitrarily selected position on the frame means 21 so as to correspond to the side, and a support S3 consisting of a pipe support 3 is erected.

S1 Temporary structure S2 Support device S3 Shoring Sv Girder structure F1 Slab forming member F2 Beam forming member 1 Support column 2 Large tension member 3 Pipe support 4 Girder-oriented horizontal member 5 Beam-oriented horizontal member 6 Tightening member 7, 7a Tightening means 8 Support fittings 9 Receiving portion 10 Outer tube 11 Inner tube 12 Locking hole 13 Slit 14 Locking pin 15 Adjustment nut 16 Base plate 17, 17a Scaffolding board 20 Horizontal frame device 21 Frame means 22 Upper horizontal member 22x Center axis line 23 Lower horizontal member 23x Center axis 24 Vertical member 25 Bundle members 25a, 25b Division groove 25x Center axis 25C Center bundle member 25L Left bundle member 25R Right bundle member 26 Diagonal member 26a, 26b Division groove 26x Center axis 27 Metal plate (reinforcement plate)
28 Band-shaped rigid portion 29 Metal plate 30 Placement piece 31 Gripping means 31a Groove member 31b Wedge member 32 Support fittings 33, 33L, 33R Unit 34 Fixing means 34a Fixing surface 35 Mounting means (downward groove)
35a Side wall 35b Window hole 35c Support surface 36 Fixed holding means (upward groove)
36a Side wall 36b Support part 37 Closing member 37a Screw 37b Hole 38 Elastic holding piece 39 Fixture 40 Shielding material 40a Plate-shaped mounting part 41 Groove-shaped mounting part

Claims (9)

Constructed by interconnecting columns (1) arranged at intervals in the girder direction (X) and beam direction (Y) with girder-oriented horizontal members (4) and beam-oriented horizontal members (5) At the top of the temporary structure (S1), large tension members (2) extending in the beam direction are placed at intervals in the girder direction, and shoring (S3) is erected on top of the large tension members. In the shoring that supports the slab forming member (F1) and beam forming member (F2) of the frame,
The temporary structure (S1) is constructed by connecting the upper ends of adjacent pillars with a horizontal suspension device (20) having a truss structure, so that the upper end of the temporary structure is connected to the bottom of the slab forming member and the beam forming member. It forms a rigid girder structure (Sv) extending through the side space.
The horizontal suspension device (20) is configured so that the large tension material can be installed at any position over almost the entire length between adjacent pillars,
The bulk material (2) is installed at a predetermined installation position determined by selecting from the above arbitrary positions, and the slab forming member (S3) is erected on top of the material. A shoring structure configured to support a beam forming member (F1) and a beam forming member (F2). The horizontal suspension device (20) includes an upper horizontal member (22) and a lower horizontal member (23) made of metal pipes arranged vertically in parallel, and a pair of vertical members made of metal pipes connecting both ends of the upper and lower horizontal members. The framework of the parallel chord truss structure is constructed by the metal pipe bundle members (25) and diagonal members (26) that connect the upper and lower horizontal members between the pair of vertical members (24), and the upper horizontal members ( 2. The shoring structure according to claim 1, further comprising fastening means (7a) fastened to the upper ends of the supports (1) in the temporary structure at both ends of the support supports (22). The upper end of the diagonal member (26) placed between adjacent bundle members (25) (25) is connected to the upper end of the bundle member (25) and the upper horizontal member (22) via the metal plate (27). The shoring structure according to claim 2, characterized in that the shoring structure is formed by being connected. The lower end of the diagonal member (26) placed between adjacent bundle members (25) (25) is connected to the lower end of the bundle member (25) and the lower horizontal member (23) via the metal plate (29). The shoring structure according to claim 2 or 3, characterized in that the shoring structure is formed by being connected. The diagonal member (26) placed between the vertical member (24) and the bundle member (25) has its upper end facing the upper end of the vertical member (24) and its lower end facing the lower end of the bundle member (25). The upper end of the diagonal member (26) is connected to the upper end of the vertical member (24) and the upper horizontal member (22) via a metal plate (27). Shoring according to claim 2, characterized in that: The diagonal member (26) placed between the vertical member (24) and the bundle member (25) has its upper end facing the upper end of the vertical member (24) and its lower end facing the lower end of the bundle member (25). The lower end of the diagonal member (26) is connected to the lower end of the bundle member (25) and the upper horizontal member (22) via a metal plate (29). Shoring according to claim 2 or 5, characterized in that: A metal reinforcing plate (27) extending longitudinally along the lower surface of the upper horizontal member (22) is fixed between the pair of vertical members, and the bundle member (25) and the diagonal member (27) are attached to the reinforcing plate. The shoring structure according to claim 2, 3 or 5, characterized in that the band-shaped rigid portion (28) is formed by fixing the support member (26). The central axis line (25x) of the bundle member (25) of the horizontal suspension device and the central axis line (26x) of the diagonal member (26) are such that the upward axis extension portion is aligned with the central axis line (22x) of the upper horizontal member (22). 6. The shoring structure according to claim 3, wherein the shoring is constructed so that the downward axis line extensions intersect near the center axis (23x) of the lower horizontal member (23). The support column (1) of the temporary structure has a structure in which fastening members (6) protruding from the outer periphery are arranged at intervals in the vertical direction,
The horizontal suspension device (20) is provided with a mounting piece (30) and a gripping means (31) on the vertical member (24), and the fastening means (7a) of the upper horizontal member (22) is attached to the upper end of the column. The mounting piece (30) is placed on the fastening member (6) disposed below the support while being fastened to the fastening member (6), and the holding means (31) is used to hold the support ( 3. The shoring structure according to claim 2, wherein the vertically intermediate portion of the vertical member (24) is connected laterally to the column (1) by gripping the vertical member (24).

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