JP2021167509A - Reinforcing bar structure and reinforcing bar construction method for concrete structures - Google Patents

Abstract

An object of the present invention is to provide a simple and inexpensive reinforcing structure for a concrete structure and a reinforcing bar construction method for realizing reinforcing bars that can withstand the running of a leveling construction machine. [Solution] The main reinforcement 2A is provided with binding bars that bind the intersections 4 of the distribution bars 2B at predetermined intervals, and a bar-type spacer 1 with a plate, and the direction in which the main reinforcement 2A extends is the direction of the concrete structure in the middle of hardening. The binding bars are set in the direction in which the wheels of the leveling construction machine run over the top of the concrete structure, and the thickness of the binding bars is set to prevent cuts caused by the wheels of the leveling construction machine running over the concrete structure that is in the middle of hardening. The spacing of the bar-type spacers 1 with plates is set to a predetermined tolerance for the amount of vertical deformation of the main reinforcing bars 2A after the wheels of the construction machine pass over the concrete structure in the middle of hardening. Make sure the spacing is set to fit within the range. [Selection diagram] Figure 6

Description

The present invention relates to, for example, a reinforcing bar arrangement structure and a reinforcing bar construction method for concrete structures such as soil concrete slabs.

Conventionally, concrete slabs are generally constructed by placing concrete carried by a mixer from a plant into a formwork with a pump truck or the like and leveling the whole so that the height becomes a predetermined height. As a specific construction method, as shown in FIG. 7 (1), the operator checks the height at intervals of 1 to 2 m according to the height of the laser leveler and marks it on the concrete with a trowel. Another worker adjusts the height of the entire concrete by leveling the space between the marks with a leveling tool such as a long dragonfly. This method has long been used almost unchanged as a concrete slab construction method, as it may require a laser level and simple tools such as a trowel or a long dragonfly. However, the smoothness and flatness of the concrete slab by this method largely depends on the skill of the operator. Furthermore, in recent years when the aging of highly skilled workers and the shortage of human resources have become apparent, it is said that the construction quality of concrete slabs is lower than before.

On the other hand, in overseas concrete slab construction, leveling work using a laser screed, which is a construction machine as shown in FIG. 7 (2), is the mainstream. The laser screed detects the height of the laser from the transmitter installed outside the construction range by the two laser receivers installed in the machine, and keeps the height of the iron of the machine constant with the actuator. The height of the concrete slab can be kept constant. By using the laser screed, labor saving in construction can be realized, the physical burden on the worker is reduced, the construction speed is fast, and the smoothness of the concrete slab after construction is high. ..

Japanese Unexamined Patent Publication No. 2011-246983

By the way, even a small laser screed as shown in FIG. 7 (2) weighs about 600 kg, and a wheel with a trowel weighs 230 kg to 250 kg. Therefore, as shown in FIG. 7 (3), the running of the laser screed may cut the binding bar inside the concrete slab, which may cause the reinforcing bar to be bent or the bar-shaped spacer supporting the reinforcing bar to be crushed. be.

As a countermeasure to such a problem, overseas, because the construction area is large, a method that the machine does not get on the reinforcing bar by using a huge laser screed with a long arm is adopted, or a rope fiber that does not use a reinforcing bar. I use concrete. On the other hand, in Japan, where the construction area is smaller than overseas, it is being dealt with by changing the specifications of the reinforcing bars in order to use the laser screed. For example, in order to withstand the weight of the laser screed, the diameter of the reinforcing bar D13 used for ordinary soil reinforced concrete slabs is increased, the spacing between the reinforcing bars is shortened by 200 mm, and the spacing between the bar-shaped spacers that support the reinforcing bars is increased. We are dealing with it by shortening it from 900 mm.

However, the material cost and labor amount will increase significantly. In the mechanization of concrete slab construction aiming at labor saving, it is not desirable that the amount of work and cost for reinforcing bars increase significantly as a result. For this reason, there has been a demand for a simpler and cheaper reinforcing bar construction technique that does not affect the reinforcing bars even if a leveling construction machine such as a laser screed runs on concrete in the process of hardening.

The present invention has been made in view of the above, and provides a simple and inexpensive reinforcing bar arrangement structure and a reinforcing bar construction method for realizing a reinforcing bar that can withstand the running of a leveling construction machine. The purpose.

In order to solve the above-mentioned problems and achieve the object, the reinforcing bar-arranging structure of the concrete structure according to the present invention is a reinforcing bar-arranging structure of reinforcing bars provided inside the concrete structure, and a plurality of horizontally extending reinforcing bars. The main bar, a plurality of force distribution bars arranged orthogonally on the main bar, the binding bar that binds the intersection of the main bar and the force distribution bar at a predetermined interval, and the main bar at a predetermined height from the concrete casting surface. It is equipped with a bar-shaped spacer with a plate provided between the main bar and the concrete placing surface for installation in, and the direction in which the main bar extends is leveled over the concrete structure in the process of hardening, and the wheels of the construction machine run. It is set in the direction, and the thickness of the binding bar is set to a thickness that leveles the concrete structure in the process of hardening and prevents cutting due to the running of the wheels of the construction machine, and is a bar type with a plate. The spacer placement interval is set so that the amount of deformation of the main bar in the vertical direction after the wheels of the construction machine have passed over the concrete structure during hardening is set within a predetermined allowable range. It is a feature.

Further, in the reinforcing bar arrangement structure of the other concrete structure according to the present invention, in the above-mentioned invention, the arrangement interval between the main bar and the force distribution bar is 200 mm, the diameter of the binding bar is 1.0 mm or more, and the bar with a plate is provided. The mold spacers are arranged at an interval of 600 mm.

Further, in the reinforcing bar arrangement structure of the other concrete structure according to the present invention, in the above-mentioned invention, a region for changing the traveling direction of the leveling construction machine traveling on the concrete structure in the process of hardening is set. , All intersections in the area are characterized by being fixed by cohesive muscles.

Further, the reinforcing bar construction method according to the present invention is a method of constructing reinforcing bars provided inside a concrete structure, and is a method of constructing a plurality of main bars extending in the horizontal direction and a plurality of force distributions arranged orthogonally on the main bars. With a binding machine at predetermined intervals, use binding bars set to a thickness that smoothes the intersections of the bars over the concrete structure in the process of hardening and prevents cutting due to the running of the wheels of the construction machine. The step of binding and the bar-shaped spacer with a plate provided between the main bar and the concrete casting surface in order to install the main bar at a predetermined height from the concrete casting surface are leveled on the concrete structure in the process of hardening. The steps of installing the main rebar after the wheels of the construction machine have passed and the amount of vertical deformation of the main rebar within a predetermined allowable range are installed at intervals, and the direction in which the main rebar extends is leveled over the concrete structure in the process of hardening. It is characterized by having a step of installing the wheels of the concrete construction machine in the traveling direction.

Further, in another reinforcing bar construction method according to the present invention, in the above-described invention, the arrangement interval between the main reinforcement and the force distribution reinforcement is 200 mm, the diameter of the binding reinforcement is 1.0 mm or more, and the bar-shaped spacer with a plate is arranged. The interval is 600 mm.

Further, in the other reinforcing bar construction method according to the present invention, in the above-described invention, a region for changing the traveling direction of the leveling construction machine traveling on the concrete structure in the process of hardening is set, and the region is set. It is characterized in that all intersections are fixed with binding muscles.

According to the reinforcing bar arrangement structure of the concrete structure according to the present invention, it is a reinforcing bar arrangement structure of the reinforcing bars provided inside the concrete structure, and is arranged at right angles to the plurality of main bars extending in the horizontal direction and the main bars. Multiple reinforcing bars, binding bars that bind the intersections of the main reinforcing bars and the reinforcing bars at predetermined intervals, and the main reinforcing bars and the concrete placing surface in order to install the main reinforcing bars at a predetermined height from the concrete placing surface. It is equipped with a bar-shaped spacer with a plate provided between the two, and the direction in which the main bar extends is set to the direction in which the wheels of the construction machine run on the concrete structure in the process of hardening, and the thickness of the binding bar. Is set to a thickness that smoothes the concrete structure in the middle of hardening and prevents cutting due to the running of the wheels of the construction machine, and the arrangement interval of the bar-shaped spacer with plate is the concrete structure in the middle of hardening. Since the arrangement interval is set so that the amount of vertical deformation of the main bar after the wheels of the leveling construction machine have passed is set within a predetermined allowable range, the reinforcing bars that can withstand the running of the leveling construction machine can be simplified. Moreover, it has the effect of being able to be realized at low cost.

Further, according to the reinforcing bar arrangement structure of another concrete structure according to the present invention, the arrangement interval between the main bar and the force distribution bar is 200 mm, the diameter of the binding bar is 1.0 mm or more, and the bar-shaped spacer with a plate is used. Since the arrangement interval is 600 mm, it is possible to realize the labor saving of the leveling construction of the concrete structure in which the arrangement interval between the main bar and the force distribution bar is 200 mm.

Further, according to the reinforcing bar arrangement structure of another concrete structure according to the present invention, an area for changing the traveling direction of the leveling construction machine traveling on the concrete structure in the process of hardening is set, and the area is set. Since all the intersections in the above are fixed by the binding muscles, the effect is that the stationary steering of the wheels can effectively resist the lateral force applied to the reinforcing bars.

Further, according to the reinforcing bar construction method according to the present invention, it is a method of constructing reinforcing bars provided inside a concrete structure, that is, a plurality of main bars extending in the horizontal direction and a plurality of main bars arranged orthogonally on the main bars. The intersections of the distribution bars are leveled over the concrete structure in the process of hardening and bound at predetermined intervals using binding bars set to a thickness that prevents cutting due to the running of the wheels of the construction machine. A step of binding with a machine and a bar-shaped spacer with a plate provided between the main bar and the concrete casting surface to install the main bar at a predetermined height from the concrete casting surface are placed on the concrete structure in the process of hardening. Steps to install at intervals of arrangement so that the amount of vertical deformation of the main rebar after the wheels of the construction machine have passed are within a predetermined allowable range, and the direction in which the main rebar extends is on the concrete structure in the process of hardening. Since it has a step of installing the rebar in the direction in which the wheels of the leveling construction machine travel, it is possible to easily and inexpensively realize a reinforcing bar that can withstand the traveling of the leveling construction machine.

Further, according to another reinforcing bar construction method according to the present invention, the arrangement interval between the main reinforcement and the force distribution reinforcement is 200 mm, the diameter of the binding reinforcement is 1.0 mm or more, and the arrangement interval of the bar-shaped spacer with a plate is 600 mm. Therefore, there is an effect that labor saving in the leveling work of the concrete structure in which the arrangement interval between the main bar and the force distribution bar is 200 mm can be realized.

Further, according to another reinforcing bar construction method according to the present invention, an area for changing the traveling direction of the leveling construction machine traveling on the concrete structure in the process of hardening is set, and all intersections in the area are set. Since the part is fixed by the binding bar, it has the effect of being able to effectively resist the lateral force applied to the reinforcing bar by the stationary steering of the wheel.

FIG. 1 is an explanatory view of construction of a binding muscle, (1) is a binding tool (hacker), (2) is construction by a binding machine, and (3) is a binding muscle holder of the binding machine. FIG. 2 is an explanatory view of the construction of the bar-type spacer, in which (1) is a bar-type spacer, (2) is a bar-type spacer with a plate, and (3) is deformation when passing through a wheel. FIG. 3 is a schematic diagram of the measurement of the amount of deformation of the reinforcing bar. FIG. 4 is a diagram showing the amount of deformation of the bar-shaped spacer (during wheel running and after passing the wheel). FIG. 5 is a diagram showing the relationship between the direction of the reinforcing bar and the traveling direction of the wheel. FIG. 5 (1) is a case where the vehicle travels orthogonally to the force distribution reinforcement, and (2) is a case where the vehicle travels orthogonally to the main reinforcement. 6A and 6B are views showing an embodiment of a bar arrangement structure of a concrete structure according to the present invention, in which FIG. 6A is a plan view and FIG. 62 is a cross-sectional view. FIG. 7 is a photographic diagram showing a conventional construction situation, (1) is a construction situation with a simple leveling tool, (2) is a construction situation with an overseas laser screed, and (3) is a reinforcing bar by running a laser screed. This is an example of damage.

Hereinafter, embodiments of the reinforcing bar arrangement structure and the reinforcing bar construction method of the concrete structure according to the present invention will be described in detail with reference to the drawings. In the following embodiment, a case where the thickness and arrangement interval of the binding muscle, the binding method, the type and arrangement interval of the bar-shaped spacer, etc. are changed according to the traveling method of the laser screed will be described as an example. The present invention is not limited to the above-mentioned form.

In this embodiment, in response to the above problems in the leveling work of the soil concrete slab (concrete structure) by the laser screed (leveling construction machine), there is no problem in running the laser screed and the reinforcing bar construction. It provides a method. The three points to prevent the reinforcing bars in the concrete slab from being damaged by the weight given by the wheels of the laser screed are three points: prevention of breaking of the binding bar, prevention of crushing of the bar-shaped spacer, and traveling direction of the laser screed. First, these points will be described.

(1) Prevention of breakage of the binding bar The binding bar is a linear steel material for fixing the intersection of the reinforcing bars. If the binding bar is broken by the running of the laser screed, the bending of the reinforcing bar may become large, or the wheel load received on the surface may be concentrated at one point, and the reinforcing bar may not be restored in the bent state. .. The binding of the reinforcing bars is generally fixed by hand using the hacker shown in FIG. 1 (1). Bundling of reinforcing bars by this hacker requires skill, and the construction quality is not constant because there are individual differences in the force for tightening the reinforcing bars. Therefore, it is desirable to use a commercially available binding machine as illustrated in FIG. 1 (2) for the construction of the reinforcing bar assuming that the laser screed runs. When such a binding machine is used, the binding bar can be sent out from a wire reel rotatably supported by the binding machine body and wound around the reinforcing bar to bind.

In addition, the thickness of the binding muscle constructed by a hacker is usually 0.8 mm, but a thicker one is used to prevent cutting. For example, a tying muscle having a thickness of about 1.0 mm can be fixed by a hacker as before, but if the number is large, the physical burden increases. On the other hand, the binding machine can be used without any special skill, and there is little variation in construction quality. Since continuous construction is possible with roll-shaped binding bars, construction can be performed at a speed 1.5 times or more that of construction by a hacker. Therefore, there is a cost merit of labor cost that can increase the construction area, rather than the material cost of changing the thickness of the binding muscle from 0.8 mm to 1.0 mm. Even if the construction area increases, the physical burden on the operator is reduced as a result, so there is a great merit in using a binding machine with a thick binding muscle.

As for the binding point, for example, it is preferable to skip one intersection of the reinforcing bars. However, in places where the laser screed changes the traveling direction, it is desirable to bind all the intersections because a large lateral force is applied to the reinforcing bars due to the stationary steering of the wheels.

(2) Prevention of crushing of bar-shaped spacers Bar-shaped spacers used for the purpose of installing reinforcing bars at a predetermined height are roughly divided and have inverted U-shaped legs as shown in FIG. 2 (1). As shown in FIG. 2 (2), a general type and a type with a plate in which the lower ends of the legs are connected by a plate and reinforced are known. The bar-shaped spacer is usually arranged between the lower surface of the horizontally arranged reinforcing bar and the casting surface. If the binding bar is not broken, the weight of the wheel will be supported by the surface of the reinforcing bar, so the bar-shaped spacer will not be easily crushed. However, even if the binding muscle is not cut, as shown in FIG. 2 (3), in the case where the wheel passes directly above the bar-shaped spacer, the leg may be crushed depending on how the load is applied.

FIG. 3 is an outline of measurement of the amount of deformation when the reinforcing bars 2 are assembled in a grid pattern using the bar-shaped spacer 1 and the wheels 3 run in the center. D13 was used as the reinforcing bar, and the arrangement pitch A was 200 mm. As the bar type spacer 1, the above general one (for general use) and the one with a plate were used. The distance B between the tops of the spacer 1 was set to 900 mm and 600 mm. FIG. 4 shows the results of measuring the amount of deformation during and after the wheel travels. The difference in the amount of deformation depending on the type and spacing of the spacers is shown. As shown in this figure, when the spacer spacing B is 900 mm, the amount of deformation of the reinforcing bar 2 is close to 30 mm for both general use and with plate, and after the wheel 3 has passed, it is 6.1 mm for general use with plate. The deformation of 5.0 mm remains. When the spacer spacing B is 600 mm, the amount of deformation is suppressed to 12.2 mm and 10.9 mm, and the deformation after passing through the wheels is 0.5 mm. Therefore, the distance B between the bar-shaped spacers 1 is preferably 600 mm, and it is desirable to use a bar-shaped spacer with a plate that does not collapse even if the wheel 3 passes directly above.

(3) Traveling direction of laser screed Reinforcing bars arranged substantially horizontally in the soil concrete slab are arranged by passing the main reinforcing bars over the bar-shaped spacers and crossing the force distribution bars at right angles on the bar-shaped spacers. Fix with a cohesive muscle. Since the movement of the laser screed is linear, it is desirable to determine the concrete placement direction according to the method of assembling the reinforcing bars. As shown in FIG. 5 (1), when the wheel 3 travels in the direction orthogonal to the force distribution bar 2B, the binding bar at the reinforcing bar intersection 4 is not directly loaded, so that the binding bar is almost likely to be cut. No. On the other hand, as shown in FIG. 5 (2), when the wheel 3 travels in the direction orthogonal to the main bar 2A, a pulling force is applied to the binding bar at the intersection 4 of the force distribution bar 2B, so that the wheel 3 is not cut. Is also damaged. Therefore, when the reinforcing bars are arranged in a grid pattern by making the force distribution bars 2B orthogonal to the main bars 2A, the intersection 4 is fixed by the binding bars and the traveling direction of the laser screed is orthogonal to the force distribution bars 2B. It is desirable to set the direction.

Further, depending on the construction conditions such as the construction area, it is necessary to change the traveling direction of the laser screed on the reinforcing bar, and in that case, the wheel may be in a stationary state on the reinforcing bar. It is desirable to reinforce the stationary cutting because a large lateral force is applied to the binding part of the reinforcing bar. Therefore, the range in which the laser screed changes direction on the reinforcing bar (for example, about 3 m in width) is planned in advance according to the concrete casting design drawing, and the intersection of all the reinforcing bars should be fixed with the binding bar in that part. To.

FIG. 6 shows the reinforcing bar arrangement structure inside the concrete slab of the present embodiment. As shown in this figure, the reinforcing bars are arranged in a grid pattern by arranging the force distribution bars 2B extending in the front-rear direction orthogonally on the main bars 2A extending in the left-right direction, and the predetermined intersections 4 are fixed by the binding bars. ing. The main bar 2A is installed at a predetermined height by the bar-shaped spacer 1 below. The laser screed runs on the concrete slab in the left-right direction along the extending direction of the main bar 2A. A turning space R is provided in the area on the right side of the concrete slab so that the laser screed can change direction. The main bar 2A and the force distribution bar 2B are D13, and the arrangement interval is 200 mm. The binding muscle has a diameter of 1.0 mm, and the arrangement interval is 400 mm. However, in the turning space R, the arrangement interval is set to 200 mm. The bar-type spacer 1 is a bar-type spacer with a plate, and the arrangement interval thereof is 600 mm.

According to this embodiment, in the leveling work using the laser screed, the reinforcing bar is not bent or damaged by the passage of the wheel. Since it is the minimum reinforcement that holds down the points, it is possible to avoid a situation in which a significant cost increase occurs.

As described above, according to the reinforcing bar arrangement structure of the concrete structure according to the present invention, it is a reinforcing bar arrangement structure of the reinforcing bars provided inside the concrete structure, and is a plurality of main bars extending in the horizontal direction and above the main bars. Multiple reinforcing bars arranged perpendicular to the concrete, binding bars that bind the intersections of the main bars and the reinforcing bars at predetermined intervals, and main bars for installing the main bars at a predetermined height from the concrete casting surface. It is equipped with a bar-shaped spacer with a plate provided between the concrete and the concrete placing surface, and the direction in which the main reinforcing bar extends is set to the direction in which the wheels of the construction machine run on the concrete structure in the process of hardening. , The thickness of the binding bar is set to a thickness that smoothes the concrete structure in the process of hardening and prevents cutting due to the running of the wheels of the construction machine. Since the arrangement interval is set so that the amount of vertical deformation of the main rebar after the wheels of the leveling construction machine have passed over the concrete structure during hardening is set within a predetermined allowable range, the leveling construction machine runs. Reinforcing bars that can withstand the above can be realized easily and inexpensively.

Further, according to the reinforcing bar arrangement structure of another concrete structure according to the present invention, the arrangement interval between the main bar and the force distribution bar is 200 mm, the diameter of the binding bar is 1.0 mm or more, and the bar-shaped spacer with a plate is used. Since the arrangement interval is 600 mm, it is possible to realize labor saving in the leveling work of the concrete structure in which the arrangement interval between the main bar and the force distribution bar is 200 mm.

Further, according to the reinforcing bar arrangement structure of another concrete structure according to the present invention, an area for changing the traveling direction of the leveling construction machine traveling on the concrete structure in the process of hardening is set, and the area is set. Since all the intersections in the are fixed by the binding bar, the stationary steering of the wheel can effectively resist the lateral force applied to the reinforcing bar.

Further, according to the reinforcing bar construction method according to the present invention, it is a method of constructing reinforcing bars provided inside a concrete structure, that is, a plurality of main bars extending in the horizontal direction and a plurality of main bars arranged orthogonally on the main bars. The intersections of the distribution bars are leveled over the concrete structure in the process of hardening and bound at predetermined intervals using binding bars set to a thickness that prevents cutting due to the running of the wheels of the construction machine. A step of binding with a machine and a bar-shaped spacer with a plate provided between the main bar and the concrete casting surface to install the main bar at a predetermined height from the concrete casting surface are placed on the concrete structure in the process of hardening. Steps to install at intervals of arrangement so that the amount of vertical deformation of the main rebar after the wheels of the construction machine have passed are within a predetermined allowable range, and the direction in which the main rebar extends is on the concrete structure in the process of hardening. Since it has a step of installing the rebar in the direction in which the wheels of the leveling construction machine travel, it is possible to easily and inexpensively realize a reinforcing bar that can withstand the traveling of the leveling construction machine.

Further, according to another reinforcing bar construction method according to the present invention, the arrangement interval between the main reinforcement and the force distribution reinforcement is 200 mm, the diameter of the binding reinforcement is 1.0 mm or more, and the arrangement interval of the bar-shaped spacer with a plate is 600 mm. Therefore, it is possible to realize labor saving in the leveling work of the concrete structure in which the arrangement interval between the main bar and the force distribution bar is 200 mm.

Further, according to another reinforcing bar construction method according to the present invention, an area for changing the traveling direction of the leveling construction machine traveling on the concrete structure in the process of hardening is set, and all intersections in the area are set. Since the portion is fixed by the binding bar, it is possible to effectively resist the lateral force applied to the reinforcing bar by the stationary steering of the wheel.

As described above, the reinforcing bar arrangement structure and the reinforcing bar construction method of the concrete structure according to the present invention are useful for the construction of the soil concrete slab, and are particularly suitable for realizing the reinforcing bars that can withstand the running of the leveling construction machine. ing.

1 Bar type spacer 2 Reinforcing bar 2A Main bar 2B Force distribution bar 3 Wheel 4 Crossing R Turning space

Claims (6)

It is a reinforcing bar arrangement structure provided inside a concrete structure.
Multiple main bars extending in the horizontal direction, multiple distribution bars arranged orthogonally on the main bars, binding bars that bind the intersections of the main bars and the distribution bars at predetermined intervals, and the main bars are placed in concrete. It is equipped with a bar-shaped spacer with a plate provided between the main bar and the concrete placing surface for installation at a predetermined height from the surface.
The direction in which the main bar extends is set in the direction in which the wheels of the construction machine run on the concrete structure that is being hardened.
The thickness of the binding bar is set to a thickness that smoothes the concrete structure in the process of hardening and prevents cutting due to the running of the wheels of the construction machine.
The arrangement interval of the bar-shaped spacer with a plate is set so that the amount of vertical deformation of the main bar after the wheels of the construction machine have passed by leveling the concrete structure in the process of hardening is within a predetermined allowable range. Reinforcement structure of a concrete structure characterized by being The concrete structure according to claim 1, wherein the arrangement interval between the main bar and the force distribution bar is 200 mm, the diameter of the binding bar is 1.0 mm or more, and the arrangement interval of the bar-shaped spacer with a plate is 600 mm. Reinforcement structure of objects. A claim characterized in that an area for changing the traveling direction of a leveling machine traveling on a concrete structure in the process of hardening is set, and all intersections in the area are fixed by a binding bar. Reinforcing structure of the concrete structure according to 1 or 2. It is a method of constructing reinforcing bars provided inside a concrete structure.
Cutting by leveling the intersection of a plurality of main bars extending in the horizontal direction and a plurality of distribution bars arranged orthogonally on the main bars on a concrete structure in the process of hardening and running the wheels of a construction machine. The step of binding with a binding machine at predetermined intervals using the binding bar set to the thickness to prevent the concrete, and the main bar and the concrete placing surface to install the main bar at a predetermined height from the concrete placing surface. A bar-shaped spacer with a plate provided between and is leveled over a concrete structure in the process of hardening, and an arrangement interval that keeps the amount of vertical deformation of the main bar after the wheels of the construction machine pass within a predetermined allowable range. A reinforcing bar construction method characterized by having a step of installing every other step and a step of leveling the extending direction of the main bar on a concrete structure in the process of hardening and installing the step in the direction in which the wheels of the construction machine travel. The reinforcing bar construction according to claim 4, wherein the arrangement interval between the main bar and the force distribution bar is 200 mm, the diameter of the binding bar is 1.0 mm or more, and the arrangement interval of the bar-shaped spacer with a plate is 600 mm. Method. Claim 4 is characterized in that an area for changing the traveling direction of a leveling construction machine traveling on a concrete structure in the process of hardening is set, and all intersections in the area are fixed with binding bars. Alternatively, the reinforcing bar construction method according to 5.

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