JPS645138B2 - - Google Patents

Description

[Detailed Description of the Invention] Conventional reinforced concrete structures are constructed by bending and assembling deformed reinforcing bars, but they suffer from problems such as insufficient labor and weak resistance to bending toughness of deformed reinforcing bars.

The present invention relates to an assembly method for a reinforced concrete structure that solves the above-mentioned problems and involves pre-assembling reinforcing bars without bending.

The proposed construction method involves assembling individual beams, columns, etc. by assembling the reinforcing bars first, without bending the main bars using deformed reinforcing bars in a reinforced concrete rigid frame structure, and for star lamps and hoops, the construction method is limited to bending round steel. This is a characteristic feature.

The results have not only ensured reinforcement accuracy and quality, but also had extremely large ripple effects, such as making it easier to pour fresh concrete under beams.

In conventional reinforced concrete structures, the deformed reinforcing bars are bent and assembled separately for each floor and each part, which poses various problems.

One of the problems is that most of the deformed reinforcing bars currently in use are made in an electric furnace, and although they have high strength, their bending toughness is extremely low, making them difficult to follow when bent back.

Furthermore, because of the irregular shape, scratches and cracks are likely to occur on the inside of the reinforcing bars due to bending, so if scratches and cracks occur, the strength will be significantly weakened.

The second problem is that considering the shortage of labor and skilled workers, the bending process requires a considerable amount of experience, such as three-dimensional bar arrangement and difficult assembly order, unless it is done by a highly skilled worker. However, it is currently extremely difficult to build one due to the lack of skilled workers.

By solving the above problems, the construction of current structures can be made easier and stronger.

The present application is an invention that solves the above problems,
The purpose of this invention is to provide an assembly method in which reinforcing bars are pre-assembled without bending and which improves the filling of fresh concrete by simplifying the joints between beams and columns.

Another purpose of this application is to simplify the dropping and assembling methods for assembling beam reinforcements, etc., and since the beam reinforcements can be assembled separately, it is also possible to place fresh concrete under the beams. The purpose of the present invention is to provide an assembly method by pre-assembling reinforcing bars without bending, which makes it possible to place high-quality concrete for the building frame.

Another objective of the present application is that since the fixing tails at the ends of beams and the hooks at column bases are not bent, beams and columns can be easily inserted and reinforced using the pre-assembly method without damaging the reinforcing bars due to bending. The purpose of the present invention is to provide an assembly method by pre-assembling reinforcing bars without bending.

A further object of the present invention is to provide an assembly method in which reinforcing bars are pre-assembled without bending, and which has good erection accuracy and reinforcement accuracy.

Furthermore, the purpose of this application is that when the beam height is small, the anchoring tails of the upper beam reinforcements and the lower end reinforcements overlap, making pre-assembled reinforcement impossible.However, this method does not involve bending, so even if the beam sheath is small, it is not possible to perform pre-assembled reinforcement. To provide an assembly method by pre-assembling reinforcing bars without bending.

Furthermore, it is an object of the present invention to provide an assembly method by pre-assembling reinforcing bars without bending, in which the exposed beams can be used as external scaffolding.

Now, to explain the example to achieve the above purpose, a. The foundation beam reinforcement in the direction of the outer girder is erected horizontally (the first
(See Figure), b) Install the inter-beam direction foundation beam reinforcement horizontally from the side of the girder direction foundation beam reinforcement, and make the main reinforcement protrude outward from the girder direction foundation beam reinforcement by the necessary length for strength (see Figure 2), c. Next, the intermediate girder direction foundation beam reinforcement is built on the lower main reinforcement that has been extended inward by the length necessary for the strength of the inter-beam direction foundation beam reinforcement (see Figure 2). Sequentially erect inter-beam direction foundation beam reinforcements with upper main reinforcements that fully reach the upper main reinforcement of the reinforcement and lower main reinforcements extended inward by the length required for strength (see Figure 3); e. girder direction foundation beam reinforcements of similar shape; , the inter-beam direction foundation beam reinforcement, and the girder direction foundation beam reinforcement are erected in sequence, and in the final part, the girder direction foundation beam reinforcement is erected near the outer end of the lower main reinforcement, which has been extended to the length necessary for the strength of the inter-beam direction foundation beam reinforcement. After that, reinforcement is placed at the end of the beam in order to assist the main reinforcement that has not been extended at the top (see Figure 3). After completing the erection of the foundation beam, drop the column reinforcement vertically at the intersection of the foundation beam reinforcement in the inter-beam direction and the foundation beam reinforcement in the girder direction, or at the desired location (see Figure 4). g. Place the column reinforcement at the intersection of the beam reinforcement. Alternatively, after placing the beam reinforcement at the desired location, wrap the hoop at the lower end of the column reinforcement and the starrup at the end of the beam, and erect the formwork (see Figure 5) h After pouring concrete for the foundation, place the columns, beams, Erect formwork for walls, slabs, etc. (see Figure 5), then erect beam reinforcements in the direction of the girders and beam reinforcements in the direction between the beams on the second floor in sequence in the same way as the construction of the first floor. Arrange beam reinforcement, girder direction beam reinforcement, and top end reinforcement.
Similar to the foundation beam, the joints are simultaneously connected using multi-axis gas pressure welding or sleeve joints, and the stirrups at the ends of the beam are wrapped (see Figures 6 to 8). Drop vertically at the desired point at the intersection of the direction beam reinforcement and the girder direction beam reinforcement (see Figure 9), wrap the hoop at the lower end of the column reinforcement and the starrup at the end of the beam, and connect the joint by multiaxial gas pressure welding or After joining with sleeve joints, concrete is poured (see Figure 10), and after concrete is poured, formwork is erected (see Figure 10).
(See figure), l Next, erect beam reinforcement in the direction of the third floor and beam reinforcement in the direction between the beams in the same way as the second floor. Assemble the reinforcing bars in the same order as a to k above to complete the frame work (see Figure 11).
At the same time, m These beams and columns are not entirely bent, and the pre-assembled reinforcing bars alone are used as the assembly reinforcement.

As mentioned above, the present application is to erect the outer girder direction foundation beam reinforcement horizontally, the inter-beam direction foundation beam reinforcement to be horizontal from the side to the girder direction foundation beam reinforcement, and the main reinforcement to the required length for strength than the girder direction foundation beam reinforcement. erect it so that it protrudes outward, and then erect the girder-direction foundation beam reinforcement in the middle section on top of the lower main reinforcement that has been extended inward by the length necessary for the strength of the inter-beam direction foundation beam reinforcement.
Furthermore, a girder-direction foundation with a similar shape is constructed in which inter-beam direction foundation beam reinforcements having upper main reinforcements whose upper main reinforcements fully reach the upper main reinforcements of the inter-beam direction foundation beam reinforcements and lower main reinforcements extended inward by a length necessary for strength are successively constructed. Install beam reinforcement, inter-beam direction foundation beam reinforcement, and girder direction foundation beam reinforcement in sequence.
In the final part, after constructing the girder-direction foundation beam reinforcement near the outer end of the lower main reinforcement, which has been extended by the length necessary for the strength of the inter-beam direction foundation beam reinforcement, the unextended main reinforcement at the top of the inter-beam direction foundation reinforcement Place reinforcement at the upper end of the beam direction for assistance, and after completing the joint using multi-axis gas pressure welding or sleeve joint, wrap the starrups, and after completing the foundation beam erection, place the column reinforcement perpendicular to the foundation beam reinforcement. Drop the column reinforcement into the foundation beam reinforcement, wrap the hoop at the lower end of the column reinforcement and the starrup at the end of the beam, erect the formwork, and then pour the concrete for the foundation.
Erect formwork for columns, beams, walls, slabs, etc., then install beam reinforcement in the direction of the second floor girder and beam reinforcement in the direction between the beams in the same way as the construction of the first floor, arrange reinforcement at the top of the end, and then install the foundation beam. Similarly, the joints are connected simultaneously using multi-axis gas pressure welding or sleeve joints, the stirrup at the end of the beam is wrapped, and after the beam erection is completed, the column reinforcement is dropped perpendicular to the beam reinforcement.The process is repeated sequentially to complete the frame work. In addition to completing this process, the beams and columns are characterized by the use of assembly reinforcement that does not involve bending, so the desired purpose can be well achieved.

[Brief explanation of drawings]

FIGS. 1 to 11 are front views of the construction order showing the embodiment of the present application.

Claims (1)

[Claims] 1. Construct the outer girder direction foundation beam reinforcement horizontally, and build the inter-beam direction foundation beam reinforcement horizontally from the side to the girder direction foundation beam reinforcement, and make the main reinforcement protrude outward from the girder direction foundation beam reinforcement by the necessary length for strength. Next, the intermediate girder direction foundation beam reinforcement is built on the lower main reinforcement that has been extended inward by the length necessary for the strength of the inter-beam direction foundation beam reinforcement, and then the upper main reinforcement is placed on the upper main reinforcement of the inter-beam direction foundation beam reinforcement. Girder direction foundation beam reinforcement of similar shape, inter-beam direction foundation beam reinforcement, which has a sufficient upper main reinforcement and a lower main reinforcement extended inward to the required length for strength, are built in sequence;
The girder-direction foundation beam reinforcements are erected one after another, and in the final part, the girder-direction foundation beam reinforcements are erected near the outer ends of the lower main reinforcements, which have been extended to the length necessary for the strength of the inter-beam direction foundation beam reinforcements, and then the inter-beam direction foundation beam reinforcements are installed. To assist the main reinforcement that has not been extended at the top of the reinforcement, the upper reinforcement at the end of the beam direction is placed, and after completing the joint using multi-axis gas pressure welding or sleeve joint, wrap the starrup and complete the erection of the foundation beam. Drop the rear column reinforcement perpendicularly to the foundation beam reinforcement, erect the column reinforcement into the foundation beam reinforcement, wrap the hoop at the lower end of the rear column reinforcement and the starrup at the end of the beam, erect the formwork, and then pour the concrete for the foundation. After that, formwork for columns, beams, walls, slabs, etc. is erected, and then, in the same way as the construction of the first floor, beam reinforcements in the direction of the second floor girder and beam reinforcements in the direction between the beams are erected, and the upper end reinforcements are arranged. Similar to the foundation beam, the joints are simultaneously joined using multi-axis gas pressure welding or sleeve joints, and the stirrup at the end of the beam is wrapped, and after the beam erection is completed, the process of dropping the column reinforcement perpendicular to the beam reinforcement is repeated in sequence to build the frame. This is an assembly method by pre-assembling reinforcing bars of assembly bars that do not undergo bending, which is characterized by using assembly reinforcements that do not bend all of the beams and columns when the construction is completed.