JP3676442B2 - Filled coated steel pipe concrete structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention according to the load coated shaped steel concrete structure applied pier, chimney, etc. tower-like structure.
[0002]
[Prior art]
The structure of a conventional pier is mainly composed of a reinforced concrete structure in which main bars having a diameter of 32 mm or 51 mm are doubled at intervals of 150 mm, and reinforcing bars having a diameter of 16 to 25 mm are arranged at intervals of 150 mm.
In some cases, bridge piers with an SRC structure in which H steel is converted into a cross section of a reinforcing bar and combined with the reinforcing bar are seen, but in this case also a band is required.
[0003]
[Problems to be solved by the invention]
In the conventional structure, since the main reinforcing bar with a large diameter is doubled at intervals of 150 mm, it takes a lot of time for the construction of the joint, and when the distance between the main reinforcing bars is narrow, a great deal of labor is required for the construction of the concrete. In addition, a strap is required, and it takes a lot of time to assemble the strap.
[0004]
Furthermore, it takes time in the process of construction of the pier, and in particular, a great deal of time and labor is required in the process of assembling the reinforcing bars.
The present invention has been proposed in view of the above-mentioned problems of the prior art. The purpose of the present invention is to save labor in rebar assembly, shorten the process, and have excellent earthquake resistance structurally. that it provides a filling coated shaped steel concrete structure which is applied to the tower-like concrete structure having a hollow rectangular horizontal cross section defined by side wall portions of the four sides.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the filled-clad steel pipe concrete structure according to the present invention is applied to a concrete structure having a hollow rectangular horizontal cross-sectional shape defined by four side walls. A truss-like structure for joining a plurality of vertically extending steel pipes arranged in the walls of the side walls of the four sides and extending in the vertical direction, and the steel pipes adjacent to each other in the lateral direction. The steel structure is provided with a reinforcing frame structure that goes around the side walls of the four sides of the concrete structure, and each of the plurality of steel pipes is filled with high-strength, high-fluidity concrete , The side walls of the four sides are configured by covering the reinforcing frame structure with a reinforced concrete structure.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The drawings show a preferred embodiment of the present invention . As is clear from FIG. 1, the concrete structure according to this embodiment has a hollow rectangular horizontal cross-sectional shape defined by four side walls. Have. There Nde write built steel pipe 1 for each predetermined position from the base portion, the plurality of steel pipe 1 is arrayed in the wall of the side wall portion of the four sides as shown in FIG. 1, also vertically as shown in FIG. 2 Extends in the direction. Yes and Tsugise' each other laterally phases Tonariru were if the steel pipe 1 in equilateral mountain-steel truss-like steel member 2, which is composed of, thereby, the side wall portions of the four sides of the concrete structure as shown in FIG. 1 A reinforcing frame structure that goes around is formed. In the figure, 3 indicates a bolt joint of the truss-like steel member 2. Next, after reinforcing bars 4 are arranged around the steel pipe 1 group, the steel pipe 1 is filled with high-strength, high-fluidity concrete 5, and the steel pipe 1 group and the reinforcing bars 4 joined by the truss-like steel member 2 are connected. The surrounding formwork is assembled and coated concrete 6 is placed. Thereby, the reinforcement frame structure comprised by the steel pipe 1 and the truss-shaped steel member 2 is coat | covered with the reinforced concrete structure, and the side wall part of the four sides of a concrete structure is comprised.
[0007]
The steel pipe 1 is connected through a welded joint 7.
[0008]
【The invention's effect】
According to the filled coated steel pipe concrete structure according to the present invention, as described above, the steel pipe built in the foundation is filled with high-strength, high-fluidity concrete, and each steel pipe is connected by a steel member. As a result, ultimate strength and toughness are ensured, and the steel pipe group connected by steel members is covered with reinforced concrete, ensuring horizontal rigidity, improving vibration characteristics, and ensuring safety during earthquakes. Is done. Moreover, the amount of reinforcing bars is reduced by the concrete-filled steel pipe group, and labor saving such as reinforcing work is achieved.
[Brief description of the drawings]
FIG. 1 is a plan sectional view showing an embodiment of a filled-clad steel pipe concrete structure according to the present invention.
FIG. 2 is a view as seen from the arrow in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Steel pipe 2 Truss-like steel member 3 Bolt joint 4 Reinforcement 5 High strength, high fluidity concrete 6 Coated concrete 7 Welded joint

Claims (1)

In a filled coated steel pipe concrete structure applied to a concrete structure having a hollow rectangular horizontal cross section defined by four side walls,
A plurality of steel pipes extending in the vertical direction arranged in the walls of the side walls of the four sides and built in the foundation, and a truss-like steel member for joining the steel pipes adjacent to each other in the lateral direction A reinforcing frame structure configured to wrap around the side walls of the four sides of the concrete structure, each of the plurality of steel pipes being filled with high-strength, high-fluidity concrete, and the reinforcing frame structure filling coated shaped steel concrete structure but characterized in that the side wall portions of the four sides by being covered with reinforced concrete structure is constructed.

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