JP2558695Y2 - Column / beam joint structure - Google Patents

Description

[Detailed description of the invention]

The present invention relates to steel pipe columns and beams (SRC beam, RC
The present invention relates to a column / beam joint structure having a joint structure with a beam-forming structure.

[0002]

2. Description of the Related Art The conventional column-beam joint structure is, for example, a short-form steel projecting from a beam joint of a precast RC column.
Placing a steel pattern projecting at the end of the precast RC beam, connecting it with multiple bolts, etc., connecting the beam joint bar inserted into the column and the coupler to both ends of the beam main bar of the beam. And
A column / beam joint structure (Japanese Patent Publication No. 49-27363) constructed by casting concrete at the joint between the column and the beam, and both bolt holes adhered to the side surface of the column and the end surface of the beam. A column / beam joint structure in which butted end plates are joined together and fastened with a plurality of bolts and the like, and concrete is cast into the joints (JP-A-63-51542)
Publications) have been developed, but each of them has a relatively complicated mechanism, and requires a great deal of time and effort for the work of aligning the column side member and the beam side member and connecting the reinforcing bars. .

[0003]

[Problems to be Solved by the Invention] In the conventional column-beam joint structure, a shape steel or an end plate is protruded on the column side, and a shape steel or an end plate protruded on the beam side is abutted and connected by bolts or the like. The structure is such that both ends of the beam joint bar on the column side and the beam main bar on the beam side are connected by screwing with a coupler, which makes the cost relatively high with a relatively complicated mechanism. There is a problem that a lot of trouble and labor are required for the alignment and connection work of the bolt holes and the reinforcing bars with the beam side member, which causes a decrease in construction efficiency, connection performance, reliability and the like.

The present invention has been developed in order to solve the above-mentioned problems. The object of the present invention is to simplify the joint connection mechanism between a steel pipe column member and a beam member and to improve construction efficiency. Another object of the present invention is to provide a column / beam joint structure with improved connection performance and reliability.

[0005]

According to the present invention, a plurality of sheath pipes and a joint plate are arranged at a beam joint of a steel pipe column, concrete is cast inside the erection, and a precast SRC beam is formed on the joint plate. A steel joint is connected, and both ends of the beam joint bar inserted into each sheath tube and the beam main bar of the precast SRC beam are wrapped to form a lap joint. A grout material is injected into each sheath tube, and the periphery of the steel pipe column and the precast SRC A column-beam joint structure in which concrete is cast at the end of a beam, and a plurality of sheath pipes are installed at a beam joint of a steel pipe column, built in, and beam joint bars inserted through each sheath pipe Lapping the ends of the beam main reinforcing bars of the reinforcing steel beams to form a lap joint, pouring grout into each sheath pipe, casting concrete inside and around the steel pipe columns and the reinforcing steel beams, and beam-column joints Features in structure, joining Easy to connect the performance and construction as well as simplify the concrete, increasing the reliability.

[0006]

[Function] A plurality of sheath pipes and joint plates are arranged at the beam joint of a steel pipe column, and concrete is poured into the built-in section.
Precast SRC beam steel frame is connected to the joint plate, and beam joint reinforcement inserted into each sheath tube and Precast SR
Lap both ends of beam main reinforcement of C beam to make lap joint,
A grout material is injected into each sheath pipe and concrete is cast around the steel pipe column and at the end of the precast SRC beam, so that it is easily constructed into a column-beam joint structure.
A plurality of sheath pipes are provided at the beam joint of the steel pipe column and built,
Lap the ends of the beam joint bar inserted into each sheath tube and the beam main bar of the reinforcing bar beam into a lap joint, inject grout material into each sheath tube, and add concrete inside and around the steel tube column and around the reinforcing bar beam. It is easily constructed into a column / beam joint structure by casting.
The beam joint reinforcement inserted into the steel pipe column and the beam main reinforcement of the precast SRC beam or the rebar beam are easily and accurately and powerfully connected, and grout material is injected into each sheath pipe, and the inside, around and precast of the steel pipe column. The joint structure can be simplified, easily constructed, and can be stamped and joined with high precision, for example, the concrete placement of the end of the SRC beam or the reinforcing bar beam is efficiently performed.

[0007]

FIG. 1 shows a first embodiment of the present invention, FIG. 3 shows a second embodiment, and FIG. 2 shows a steel pipe column used in the present invention. In the figure, 1 is a steel pipe column, 2 is a sheath pipe through which a beam joint is inserted, 3 is a beam joint, 10 is a precast SRC beam (precast steel reinforced concrete beam), and 10a is a reinforcing bar beam formed in a reinforced concrete beam. Reference numerals 3a and 15a denote lap joints, 15 denotes a beam main reinforcing bar (upper beam main reinforcing bar, lower beam main reinforcing bar), c denotes cast concrete, and g denotes a grout material.

In the first embodiment shown in FIG. 1, a plurality of sheath pipes 2 and a joining plate 6 are arranged at a beam joining portion of a steel tube column 1, concrete c is poured into the built-in portion, and precast on the joining plate. The ends of the steel frame 13 of the SRC beam 10 are connected, and both ends of the beam joint bar 3 inserted into each sheath pipe 2 and the beam main bar 15 of the precast SRC beam are wrapped to form lap joints 3a and 15a. A grout material g is injected into the sheath tube, and concrete c is cast around the steel tube column and at the end of the precast SRC beam, to provide a column / beam joint structure.

A second embodiment shown in FIG.
A plurality of sheath pipes 2 through which the beam joint bars 3 are inserted are arranged and built at the beam joints, and both ends of the beam joint bars 3 inserted into each sheath tube and the beam main bars 15 of the reinforcing bar beam 10a are wrapped. A lap joint 3a, 15a, a grout material g is injected into each sheath pipe 2, and concrete c is poured into and around the steel pipe column and the reinforcing steel beams, thereby forming a column / beam joint structure. It has become.

More specifically, the steel pipe column 1 is shown in FIG.
B, a rectangular cross-section or a circular cross-section as required, and a plurality of sheath tubes 2 are preliminarily provided in this joint in parallel or in a crossing direction (corresponding to the embodiment shown in FIG. ) And the upper and lower two-stages, and the inside of the concrete c is cast together with the surroundings when the steel pipe column 1 is built or after the beam members are connected. In the first embodiment, as shown in FIG. 1, a joining plate 6 (a receiving angle material or the like) is protruded in advance on the outer periphery of the joining port. Further, each sheath tube 2 has a structure in which the grout material g is injected while allowing free insertion of the beam joint bar 3 as shown in the figure. The beam joint pipe 3 is inserted into each sheath pipe 2, and both ends thereof are wrapped to the ends of the beam main reinforcements (the beam upper reinforcements and the beam lower reinforcements) 15 of the precast SRC beam 10 or the reinforcing bar beam 10 a, respectively. In the meantime, the lap portions are connected to each other by means such as connection or welding to form lap joints 3a and 15a.

The first embodiment shown in FIG. 1 is, for example, a B1F
This is an example of construction using a precast SRC beam 10 applied to a floor. The precast SRC beam 10 is composed of a steel frame 13 and a number of ribs 14 and a plurality of beam top main bars 15.
And the main bar 15 at the lower end of the beam is buried. Further, the steel pipe column 1 has a structure in which the sheath tube 2 is previously arranged at the beam joint portion as described above and the joint plate 6 is protruded. In this embodiment, the steel pipe column 1 is erected, concrete c is poured into the inside, the beam joint bar 3 is inserted into each sheath pipe 2, and the projecting end of the beam steel frame 13 of the precast SRC beam 10 is removed. Both ends of each beam joint bar 3 inserted into the sheath tube 2 of the steel pipe column 1 are connected to the joining plate 6 by means such as bolts, welding, or the like.
Lap joints 3a and 15a are formed by wrapping the protruding ends of the beam upper main bars 15 and the beam lower main bars 15 of the C beam 10 by appropriate lengths. The beam joint bar 3 has a lap joint 3a, 15a.
Is easily configured with high precision.

Next, ribs 14 are arranged at appropriate intervals between the steel pipe column 1 and the precast SRC beam 10, and
Around the outer periphery of the steel pipe, grout material g is injected into each seal pipe 2, concrete c is cast around the copper pipe column 1 and at the beam end, and the precast SRC Beam 1
0 is easily and efficiently performed, is constructed with high precision, and is constructed into a rigidly joined SRC column / beam joint structure.

The second embodiment shown in FIG.
This is an example of an on-site construction of an RC beam (reinforced concrete beam) using a reinforcing bar beam 10a which is applied to a floor and includes a plurality of ribs 14 and a plurality of beam main bars (upper beam main bar, lower beam main bar) 15. The steel pipe column 1 has a structure in which a plurality of sheath pipes 2 are arranged in advance as shown in FIG. 2, and the steel pipe column 1 is erected as shown in FIG. The beam joint bar 3 is inserted into each sheath tube 2 so that both ends of each beam joint bar 3 are wrapped to the ends of each beam main bar 15 by an appropriate length, and the wrap portions are connected by means such as connection or welding. The lap joints 3a and 15a are formed, and a number of straps 4 and a plurality of pillar main reinforcements 5 are arranged around the steel pipe column 1 so that the grout material g is injected into each sheath pipe 2 and the steel pipe column 1 is formed. Cast concrete c on the inside and surroundings of the steel bar and the reinforcing bar 1a,
It is easily constructed into a column / beam joint structure in which RC girders are rigidly joined. In the second embodiment, basically, the same operations and effects as those of the first embodiment can be obtained.

Further, in each embodiment, as shown in the drawing, the mechanism is relatively simplified so that the cost can be reduced.

[0015]

[Effect of the Invention] The present invention has the above-described configuration,
A plurality of sheath tubes and joint plates are arranged at the beam joint of the copper tube column, concrete is poured into the erection, and the end of the steel frame of the precast SRC beam is connected to the joint plate. Beam reinforcement and precast SR inserted in
Lap both ends of beam main reinforcement of C beam to make lap joint,
The grout material is injected into each sheath pipe and concrete is poured around the steel pipe column and at the end of the precast SRC beam, so that it is easily constructed into a column / beam joint structure by the steel pipe column and the precast SRC beam, The joining structure is simplified and rigid joining can be performed with high precision.

Also, a plurality of sheath pipes are arranged and built at the beam joint of the steel pipe column, and both ends of the beam joint reinforcing bar inserted into each sheath pipe and the beam main reinforcing bar of the reinforcing bar beam are wrapped to form a lap joint. The grout material is injected into each sheath pipe, and concrete is poured into and around the steel pipe columns and the reinforcing steel beams, so that it is easily constructed into a column / beam joint structure consisting of steel pipe columns and RC beams, and joined. The structure of the double-column / beam joint is remarkably improved in connection performance and reliability as well as workability, for example, the structure is simplified and rigid connection can be performed with high precision.
In addition, cost can be reduced by simplifying the structure.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional view (A) and a transverse sectional view (B) of a steel pipe column.

FIG. 3 is a longitudinal sectional view showing a second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Steel pipe column 2 Sheath pipe 3 Beam joint bar 3a, 15a Lap joint 6 Joint plate 10 Precast SRC beam 10a Reinforced beam 13 Steel frame 15 Beam main bar c Concrete g Grout material

Claims (2)

(57) [Scope of request for utility model registration] 1. A plurality of sheath tubes and a joint plate are arranged at a beam joint of a copper tube column, concrete is cast inside the erection, and an end of a steel frame of a precast SRC beam is connected to the joint plate. Then, both ends of the beam joint rebar inserted into each sheath pipe and the beam main rebar of the precast SRC beam are wrapped to form a lap joint, grout material is injected into each sheath pipe, the periphery of the steel pipe column and the end of the precast SRC beam. Column / beam joint structure characterized by casting concrete in the section. 2. A plurality of sheath pipes are arranged and built at a beam joint of a steel pipe column, and both ends of a beam joint reinforcing bar inserted into each sheath pipe and a beam main reinforcing bar of a reinforcing bar beam are wrapped to form a lap joint. A grout material is injected into each sheath pipe, and concrete is poured into and around the steel pipe columns and the reinforcing steel beams, thereby forming a beam-column joint structure.