JP2879436B1 - Tensioning method for construction of structure and tensioning device for construction of structure - Google Patents

Abstract

Abstract: PROBLEM TO BE SOLVED: To improve a work efficiency by facilitating a work. SOLUTION: A bar 13 erected on a grounded base 11 to hold the stiffener 10, a support mechanism 20 rotatably supporting the bar 13 in a direction of moving toward and away from the surface of the structure, and a bar 13 And a lock mechanism for releasably locking the device at a desired rotational position.
The bar 13 extends substantially along the surface of the structure to be built.
Are erected at appropriate intervals, a linear squeezing member 10 is erected between the erected bars 13, a bendable flexible linear member is used as the staking member 10, and the surface position of the structure is When is curved, the stiffener 10 is curved along the surface position to define the surface position of the structure. As a result, the construction accuracy can be greatly improved, the finish quality of the curve can be improved, and the construction work is extremely easy, and the construction work efficiency can be greatly improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a structure in which the surface position of a structure is defined by a linear tenting material, and a tenting method for constructing a structure holding a linear tenting material. Related to the device.

[0002]

2. Description of the Related Art Conventionally, as a staking method, for example, FIG.
As shown in the figure, a retaining wall W constructed by stacking concrete blocks B on a slope having a slope such as a road side as a structure.
In the case of (1), first, a plurality of bars 1 made of a thin wooden plate are erected at appropriate intervals substantially along the surface position of a retaining wall W as a structure to be constructed. In erection of this bar 1, the ground is excavated and a pair of stakes 2, 2 are hit,
The fixing horizontal plate 3 is provided on the pile 2 by calculating the height, and the bar 1 is fixed to the horizontal plate 3 according to the gradient of the surface S of the retaining wall W. In some cases, the bar 1 is also fixed to another pile 4 provided on the slope. Next, a linear stiffener is laid between the standing bars 1. Conventionally,
A so-called water thread 5 is used. Then, the surface position of the structure is defined by the water thread 5, the surface of the concrete block B is matched with the water thread 5, the concrete blocks B are stacked one by one, and the slope and the concrete block B are stacked one by one. Cast concrete between.

[0003]

By the way, in such a conventional staking method for constructing a structure, since the stiffener is a water thread 5, when it is erected between the bars 1, it becomes a straight line. For example, as shown in FIG. 10, when the surface S of the structure to be constructed is curved, the water thread 5 cannot be stretched in accordance with the curvature. Therefore, there is a problem that the accuracy is deteriorated and the work becomes complicated and the work efficiency is deteriorated. In order to solve this problem as much as possible, the interval between the bars 1 is reduced. However, this requires a large number of bars 1 to be erected, which increases the number of parts and the number of work steps. It becomes complicated and there is a problem that work efficiency is poor. Furthermore, once the water thread 5 is stretched over, it cannot be easily removed, which hinders the casting of concrete, which also complicates the work and reduces the work efficiency. there were. Furthermore, when the bar 1 is to be erected, the stake 2 must be struck each time, and the bar 1 must be fixed to the stake 2 via the horizontal plate 3 in accordance with the gradient of the surface S of the retaining wall W. 2 or a horizontal plate 3 or a bar 1
The task of positioning is complicated, and in this regard,
There was a problem that work efficiency was poor. SUMMARY OF THE INVENTION The present invention has been made in view of such a problem, and provides a method for constructing a structure and a tensioning device for constructing a structure that facilitates the tensioning operation and improves the efficiency of the tensioning operation. The purpose is to provide.

[0004]

The technical means of the present invention for solving such a problem is to provide a plurality of bar-shaped bars at appropriate intervals substantially along the surface position of the structure to be constructed. Then, in the method for stretching a structure, in which a linear stretching member is erected between the standing bars and the surface position of the structure is defined by the stretching member, the bending member may be a flexible flexible member. When the surface position of the above-mentioned structure is curved using the linear member described above, the stiffener is curved along the surface position and erected between the bars. As a result, the stiffener curves along the surface position of the structure,
The surface of the structure can be formed according to the siding,
Therefore, compared with the case where the conventional water thread is used to construct a curve as a guide, the construction accuracy is greatly improved, the construction work is extremely easy, and the construction work efficiency is greatly improved. .

[0005] Further, the technical means of the present invention for solving such a problem is to construct a structure for holding a linear toning member provided for defining the surface position of the structure to be constructed. In the staking device, a base to be grounded, a bar erected on the base and holding the stiffener,
A support mechanism for rotatably supporting the bar in a direction of moving the bar toward and away from the surface of the structure with a main axis substantially aligned with the surface direction of the structure as an axis; And a lock mechanism for releasably locking. When using, release the lock mechanism, adjust the angle position of the bar, move the bar close to and away from the surface position of the structure, stop at the position along the surface position of the structure, and lock with the lock mechanism I do. Therefore, the installation work of the bar is extremely easily performed, and the work efficiency is greatly improved. If necessary, the support mechanism is configured to support the bar so as to be rotatable substantially along the surface direction of the structure with a perpendicular axis perpendicular to the axis of the bar as an axis. This makes it possible to fine-tune the position of the bar in accordance with the environment at the site, etc., and also to rotate the right-angle axis when performing intermediate processing on the structure, etc. The bar can be knocked down, preventing the surroundings from being disturbed. Further, the support mechanism is configured to rotatably support the bar around a parallel axis parallel to the axis of the bar as an axis. Thereby, the position of the bar can be finely adjusted according to the environment at the site.

Further, the bar is provided with a holding portion for holding the tenting material, if necessary. Thereby, the holding of the stiffener is easily performed. In this case, if necessary, the holding portion is configured to hold a stiffener made of a bendable flexible linear member. Since the stiffener is flexible, the stiffener can be bent to bend along the surface position of the structure, and a linear stiffener can be easily installed between the erected bars. If necessary, the holding portion is formed of a through-hole through which a stiffener formed of the flexible bendable linear member and inserted in the bar is inserted. Since it can be attached simply by inserting the stiffener into the through hole, attachment and detachment are easy, and workability is greatly improved in this respect as well.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a structure-tensioning method and a structure-tensioning device according to an embodiment of the present invention. As shown in FIG. 1, the tenting method for constructing a structure according to the embodiment of the present invention includes a retaining wall W constructed by stacking concrete blocks B on a slope having a slope such as a road side as a structure. The case applies. Since the method for constructing a structure according to the embodiment is performed by using the device T for constructing a structure according to the embodiment of the present invention, the tensioning device T according to the embodiment is specifically described. This will be described in the description of the operation of

[0008] Tensile device T for building a structure according to an embodiment
As shown in FIGS. 1 to 8, a linear tenter 10 is provided for defining the surface position of a structure to be constructed. As the towing member 10, a flexible linear member that can be bent is used. As the linear member of the stiffener 10, for example, a stainless steel tube having a diameter of about 6 to 12 mm is used. In addition, if it is flexible,
Any material, such as another metal tube or a solid metal wire, a resin tube or a solid resin wire, may be used.

In the tensioning device T according to the embodiment, reference numeral 11 denotes a grounded base. The base 11 is a rectangular metal plate, and is provided with a nail hole 12 at each corner where a nail for fixing the ground or the foundation is driven. Reference numeral 13 denotes a bar that is erected on the base 11 and holds the stiffener 10.
The bar 13 is formed of, for example, an angle member such as an equilateral angle iron. The bar 13 is provided with a holding portion 14 for holding the above-mentioned stiffener 10. This holding part 14
Are formed with through-holes 15 through which the stiffeners 10 are inserted.

Reference numeral 20 denotes a support mechanism for supporting the bar 13 with respect to the base 11. The support mechanism 20 rotatably supports the bar 13 in a direction to move the bar 13 toward and away from the surface S of the structure with the main axis 21 substantially along the surface direction of the structure as an axis. With the right angle axis 22 as the axis,
The bar 13 is supported so as to be rotatable substantially along the surface direction of the structure, and has a parallel axis 23 (including one coaxial with the axis of the bar 13) that is parallel to the axis of the bar 13. Is rotatably supported. That is, the support mechanism 20
Supports the bar 13 rotatably in three modes about three axes having different directions. Specifically, the spindle 21
It is formed of a metal cylindrical rod, and is supported by a pair of left and right tubular main bearings 24 fixed to the base 11 by welding or the like. The right-angled shaft 22 and the parallel shaft 23 are formed integrally by bending a metal cylindrical rod at a right angle. The right-angle shaft 22 is rotatably supported by a tubular right-angle bearing 25 welded and fixed to the center of the main shaft 21, and the parallel shaft 23 is supported by a tubular parallel bearing 26 welded and fixed to the bar 13. I have.

Reference numeral 30 denotes a lock mechanism for releasably locking the bar 13 at a desired rotation position. The lock mechanism 30
The main bearing 24, the right-angle bearing 25, and the parallel bearing 26 are provided respectively. A female screw portion 31 penetrating through the bearings 24, 25, 26, and a male screw portion 32 screwed to the female screw portion 31.
And a bolt 33 for pressing the right-angled shaft 22 and the parallel shaft 23 to stop the rotation of each shaft. A ring-shaped knob 34 for rotating the bolt 33 by hand is provided on the bolt head.
Is provided. The lock mechanism 30 includes a pair of main bearings 2.
4 are provided one by one, and the right angle bearing 25 and the parallel bearing 26 are provided one by one.

Therefore, when using the structure-building tensioning device T according to the embodiment, the tensioning is performed as follows. Now, a case will be described in which the slope is curved along a curve such as a road and the surface S of the retaining wall W, which is a structure to be constructed, as shown in FIG. First, as shown in FIG. 1, FIG. 7 and FIG. 8, at least three or more construction tensioning devices T are used for this curved portion. Then, the tensioning device T for construction is arranged at appropriate intervals on a base portion Wa of a retaining wall W as a structure to be constructed, and a base 11 is installed on the foundation, and a nail hole 1 of the base 11 is formed.
Driving a nail into 2 and fixing it to the foundation. Next, as shown in FIGS. 3 and 6, the bolt 33 of the lock mechanism 30 is loosened to adjust the angular position of the bar 13. In this case, with respect to the slope of the slope, the main shaft 21 is rotated to move the bar 13 close to and away from the position of the surface S of the structure, and the bar 13 is stopped at a position along the surface position of the structure. Screw 30 bolts 33 and lock them.

Further, as shown in FIG.
2 to rotate the bar 13 substantially in the direction of the surface S of the structure, position the bar 13 at an appropriate position, screw the bolt 33 of the lock mechanism 30 to lock, and rotate the parallel shaft 23 as appropriate. Then, the direction of the bar 13 is adjusted, the bar 13 is positioned at an appropriate position, and the bolt 33 of the lock mechanism 30 is screwed in to lock. Generally, it is sufficient to adjust the rotation of the main shaft 21 with respect to the slope of the slope, and the rotation of the right-angled shaft 22 and the parallel shaft 23 is appropriately adjusted according to the environment at the site. Thereby, a plurality of bar-shaped bars 13 are erected at appropriate intervals substantially along the surface position of the structure to be constructed. In this case, the bar 13 can be positioned in accordance with the gradient by simply releasing the lock mechanism 30 and rotating each shaft, and then locking again with the lock mechanism 30.
Compared with the conventional work of hitting a stake or a horizontal plate to set an angle, the work is performed extremely easily, so that the work efficiency is greatly improved. Next, as shown in FIGS. 1, 2 and 7, the tenter 10 is inserted into the through hole 15 of the holding part 14 provided on the bar 13 of each tenter T, and Erect. One or a plurality of stiffeners 10 may be provided as appropriate, such as erection of one or a plurality, or sequential movement to the upper through-hole 15 in accordance with the stacking position of the block B. In this case, as shown in FIG. 7, since the stiffener 10 is flexible, if there are three or more squeezing devices T and they are arranged along a curve, the stiffener 10 bends,
Curved along the surface location of the structure. As a result, the linear stiffener 10 is erected between the erected bars 13, and the stiffener 10 defines the surface position of the structure.

In this state, as shown in FIG. 1, the surface S of the concrete block B is aligned with the tenting member 10, and
Concrete blocks B are stacked one by one, and concrete is poured between the slope and the concrete block B for each step. In this case, since the stiffener 10 is bent and curved along the surface position of the structure, the block B may be brought into contact with the stiffener 10 as it is, and may be stacked along the stiffener 10. Compared with the case where a conventional water thread is used to make a curve as a guide, the construction accuracy is greatly improved, work is extremely easy, and work efficiency is significantly improved. Further, if at least three tensioning devices T are arranged, the tensioning member 10 can be curved, so that it is possible to cope with the conventional method without erecting a large number of bars. And the work becomes easier, and the work efficiency is improved in this respect as well. Further, when placing concrete, the stencil member 10 can be removed simply by pulling out the stencil member 10 from the through hole 15 of the holding part 14, so that the stencil member 10 can be prevented from being in the way. It becomes easy and work efficiency is improved. Further, even when the bar 13 of the tensioning device T is in the way, the lock mechanism 30 can be released and the bar 13 can be tilted, so that the situation in which the bar 13 becomes in the way can be prevented. And the work efficiency is improved. In this case, as shown in FIG. 5, if the right-angled shaft 22 is rotated, the bar 13 can be tilted along the surface S of the building, and it is possible to prevent a situation in which the surroundings are obstructed, and to prevent the bar 13 from being inclined. Since the angle does not change, it is not necessary to adjust the gradient again when the bar 13 is erected by rotating the right-angle shaft 22 again.

[0015]

[Experimental Example] The cost was compared with the conventional case where the retaining wall W of the block stack was constructed by using the above-mentioned tensioning device T and the tensioning material 10. According to this, conventionally, the block stacking was 2.6 artificial (garlic) per 10 m ^2, but in the present embodiment, the block stacking was 2.0 artificial per 10 m ^2.
It becomes artificial (garlic) and can achieve a significant cost reduction.

In the above-described embodiment, an example in which the slope is curved has been described. However, it can be similarly used in the case where the slope is straight. 10 are provided straight without being curved.
In addition, in the tensioning device T, it is a matter of course that the present invention can be applied to a case where the conventional water thread 5 is used as the tensioning material 10. Further, in the tensioning device T according to the above embodiment,
The number of the through holes 15 as the holding portions 14 provided in the bar 13 may be appropriately provided. Further, the configuration of the holding portion 14 is also different from that of the through hole 15.
However, the present invention is not limited to this, and may be appropriately changed such as a configuration in which the clip is used for clamping. Furthermore,
In the above-described embodiment, the example in which the retaining wall W in which the blocks B are stacked is described as a structure, but the present invention is not necessarily limited to this, and the present invention can be applied to any structure. .

[0017]

As described above, according to the tenting method for constructing a structure of the present invention, a bendable flexible linear member is used as the tenting member, and the surface position of the structure is curved. In this case, the stiffener is curved along the surface position and installed between the bars, so the surface of the building can be formed as it is according to the stiffener, so the conventional water thread builds the curve as a guide Compared to the case where it has been done, the construction accuracy can be greatly improved, the finish quality of the curve can be improved, and the construction work becomes extremely easy,
The construction work efficiency can be greatly improved.

According to the tensioning device for constructing a structure of the present invention, the bar holding the tensioning member is rotatably supported in the direction of moving toward and away from the surface of the structure. Can be easily positioned in accordance with the gradient of, so that the installation work can be performed extremely easily, and the work efficiency can be greatly improved. Also,
When the bar is supported rotatably along the surface direction of the structure, the position of the bar can be fine-tuned according to the environment of the site, etc. By rotating the right-angle axis, the bar can be tilted along the surface of the structure, preventing the surroundings from being disturbed, and the angle with respect to the gradient does not change. When the bar is moved upright, it is not necessary to adjust the gradient again, which is extremely convenient. Further, when the bar is rotatably supported around a parallel axis parallel to the axis of the bar, the position of the bar can be finely adjusted according to the environment at the site.

Further, when the bar is provided with a holding portion for holding the stiffener, the stiffener can be easily held. Further, when the holding portion is configured to hold a stiffener made of a bendable flexible linear member, the stiffener is flexible, so that the stiffener is bent to conform to the surface position of the structure. It is effective in that a linear stiffener can be easily installed between the erected bars.
And if the stiffener is curved along the surface position and installed between the bars, the surface of the structure can be formed as it is with the stiffener, so the conventional water thread can be used as a guide for curve construction Compared to the case where, the construction accuracy can be greatly improved, the finish quality of the curve can be improved, and the construction work becomes extremely easy,
The construction work efficiency can be greatly improved. Furthermore, when the holding portion is formed by a through-hole through which a stiffener made of a flexible linear member that is opened in a bar and is bendable can be attached simply by inserting the stiffener into the through-hole, Installation and removal are easy, and in this respect, workability can be greatly improved.

[Brief description of the drawings]

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a diagram showing a method for constructing a structure according to an embodiment of the present invention, together with an attached state of a structure constructing tensioning device according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a tensioning device for building a structure according to an embodiment of the present invention.

FIG. 3 is a side view showing the structure-building tensioning device according to the embodiment of the present invention together with its operation.

FIG. 4 is a plan view showing a tensioning device for building a structure according to an embodiment of the present invention.

FIG. 5 is a front view showing the structure-tensioning device according to the embodiment of the present invention.

FIG. 6 is a side view showing a use state of the structure-tensioning device according to the embodiment of the present invention.

FIG. 7 is a plan view showing a state of use of the structure-tensioning device according to the embodiment of the present invention.

FIG. 8 is a front view showing a use state of the structure-tensioning device according to the embodiment of the present invention.

FIG. 9 is a diagram showing a conventional method for constructing a structure.

FIG. 10 is a plan view showing a drawback of a conventional method for building a structure.

[Explanation of symbols]

 T Tensioning device for construction W Retaining wall B Concrete block S Surface 10 Tensioning material 11 Base 12 Nail hole 13 Bar 14 Retaining portion 15 Through hole 20 Supporting mechanism 21 Main shaft 22 Right angle shaft 23 Parallel shaft 24 Main bearing 25 Right angle bearing 26 Parallel bearing 30 Lock mechanism 31 Female thread part 32 Male thread part 33 Bolt 34 Knob part

Continuation of front page (58) Field surveyed (Int. Cl. ⁶ , DB name) E02D 29/02 301

Claims (7)

(57) [Claims] 1. A plurality of bar-like bars are erected at appropriate intervals substantially along the surface position of a structure to be constructed, and a linear stiffener is erected between the erected bars. In a method for defining a surface of a structure, wherein the surface position of the structure is curved, a flexible linear member that can be bent is used as the tensioning member. A method for constructing a structure, characterized in that it is curved along the surface position and is installed between the bars. 2. A tensioning device for constructing a structure which holds a linear tensioning member provided for defining a surface position of a structure to be constructed, comprising: a base to be grounded; A bar for holding the tenting member, a support mechanism for rotatably supporting the bar in a direction of moving the bar near and away from the surface of the structure around a main axis substantially along the surface direction of the structure, And a lock mechanism for releasably locking the bar at a desired rotation position. 3. The structure according to claim 1, wherein the support mechanism rotatably supports the bar substantially along a surface direction of the structure with a perpendicular axis perpendicular to the axis of the bar as an axis. 2. A tensioning device for constructing a structure according to 2. 4. The structure according to claim 2, wherein the support mechanism rotatably supports the bar around an axis parallel to an axis of the bar. Tenting device. 5. The tensioning device for constructing a structure according to claim 2, wherein the bar is provided with a holding portion for retaining the tensioning material. 6. The tensioning device for constructing a structure according to claim 5, wherein the retaining portion retains a tensioning member made of a flexible linear member that can be bent. 7. The structure according to claim 6, wherein the holding portion is constituted by a through-hole formed in the bar and through which a stiffener made of the bendable flexible linear member is inserted. Tensioning device for construction.