JP2697532B2 - How to build an architectural frame - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing an architectural frame for constructing a column / beam frame using a steel pipe column in which concrete is filled and a beam member made of precast concrete.

[0002]

2. Description of the Related Art As a method for achieving unsupported construction and labor saving of a concrete structure, the applicant has heretofore made a steel pipe concrete column and a reinforced concrete beam using a U-shaped steel plate. And a method in which the columns and beams are made of precast concrete with a hollow cross-sectional shape incorporating the main reinforcement, and both precast concrete members are assembled and proposed. Therefore, the strength of the column is high, and the latter has a feature that much of the reinforcing steel of the column and the beam is buried in the precast member, so that the labor for arranging the bar is greatly reduced.

The present invention has been made on the basis of the above-mentioned conventional methods, and proposes a method for taking advantage of the respective advantages and increasing the height of the structure at the same time as eliminating unsupported work and saving labor.

[0004]

According to the present invention, there is provided a steel pipe column in which concrete is filled, a hollow or solid cross-sectional shape in which a lower main bar and a stirrup are embedded, or a lower main bar and an upper main bar and a stirrup. By constructing the frame from precast concrete beam members with solid cross-sections in which is buried, the aim is to support high rise in addition to unsupported construction and labor saving. The steel pipe column penetrates the joint with the beam, and the beam member is bridged between adjacent steel pipe columns with its end face facing the side surface of the steel pipe column.

In the former case, the lower main bar and a part of the stirrup are buried in the precast concrete, the lower main bar projects from the end face, and the upper portion of the stirrup projects from the top end. In this case, the lower main bar of the beam member is connected to the lower connecting bar that penetrates the steel pipe column and protrudes from the flange to the beam side, and the upper main bar penetrates the steel pipe column and is located between the beam members facing each other across the steel pipe column. It is arranged and connected to the upper end main bar that is continuous with this upper main bar at the middle position of the beam member. After arranging both main rebars, concrete is poured into the inside of the beam member, the joint around the steel pipe column, and the inside of the steel pipe column.

When the lower main bar, the upper main bar and the stirrup are buried in the beam member, the lower main bar and the upper main bar protrude from the end face, respectively penetrate the steel pipe column and protrude from the flange to the beam side. It is connected to the reinforcing bar and the upper connecting bar, and then concrete is poured into the joint and inside the steel pipe column.

In any case, since the frame is assembled from steel pipe columns and precast concrete beam members, the formwork of columns and beams is not required, and most of the beam reinforcing bars are buried in the beam members so that they can be used on site. The amount of reinforcement is reduced, and unsupported construction and labor saving are achieved. In addition, since the columns are made of steel tube concrete, the strength and toughness of the columns are increased, and the structure is adapted to a higher layer.

[0008] Further, since the steel pipe column penetrates the joint with the beam, the joint also becomes the same steel pipe concrete as the column,
The strength and toughness of the joint are also increased.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.

According to the present invention, a steel pipe column 1 filled with concrete and a beam member 2 made of precast concrete having a hollow main part 21 and a part of a stirrup 23 buried therein and manufactured to have a hollow or solid cross section are provided. This is a method for constructing a frame of columns and beams as shown in FIG.

The beam member 2 is formed into a U-shaped cross section by embedding a lower main bar 21 and a stirrup 23 in a precast concrete 20 as shown in FIG. 3 or a solid cross section as shown in FIG. You. The upper portion of the stirrup 23 projects upward from the top end of the precast concrete 20 for integration with the slab concrete, and the lower main reinforcement 21 projects from the end surface of the precast concrete 20 to the column side as shown in FIG.

The main reinforcement 21 at the lower end of the beam of the flange 10 of the steel pipe column 1
As shown in FIG. 2, a through hole 11 is formed at the position of the upper main reinforcement 22, and flanges 10 are provided at both ends between the lower through holes 11.
A lower end connection reinforcing bar 3 protruding from 10 is arranged so as to penetrate the steel pipe column 1. Flanges 10 above and below the joint of steel pipe column 1
Ring stiffeners 4 and 4 are provided protrudingly to supplement the out-of-plane rigidity of the stiffeners, and between the ring stiffeners 4 and 4 are reinforced around the through hole 11 to transmit the shear force from the beam to the steel pipe column 1, as shown in FIG. A reinforcing steel plate 5 such as such a striped steel plate is overlaid. Through holes 51 are also formed at positions of the respective through holes 11 of the reinforcing steel plate 5.

As shown in FIG. 1 and FIG. 5, the steel pipe column 1 penetrates the joint with the beam, and the beam member 2
The lower main bar 21 is connected to the lower connecting bar 3 which is installed between the adjacent steel pipe columns 1 and 1 at a distance from the flange 10 and faces the flange 10 and penetrates the flange 10 and the reinforcing steel plate 5. The connection between the lower main bar 21 and the lower connecting reinforcing bar 3 is made by a screw joint using the coupler 6.

The upper main reinforcement 22 penetrates through the steel pipe column 1 and
The bar 6 is arranged between the beam members 2 facing each other with an intermediate portion between one beam member 2 and the intermediate portion of the other beam member 2 connected thereto.
Connected by

After the lower main bar 21 and the upper main bar 22 are connected, a stirrup 23 is arranged around the lower main bar 21 and the upper main bar 22 projecting from the end of the beam member 2, and a joint form is formed around the steel pipe column 1. It is installed and concrete is poured into the inside of the beam member 2 and the joint. At this time, as shown in FIG. 9, a floor form 7 such as a form slab is erected between the parallel beam members 2 and 2, and slab concrete is also cast at the same time. Concrete having different strength is separately cast in the steel pipe column 1 according to the required strength of the column.

FIG. 5 shows that the lower main bar 21 and the upper main bar 22 are arranged in two steps between the beam members 2 and 2 sandwiching the steel pipe column 1.
An example in which the effect of transmitting the tensile force between the beams is enhanced will be described.
Both the upper lower main reinforcement 21 and the lower upper main reinforcement 22 added in this embodiment are arranged so as to penetrate the steel pipe column 1 similarly to the upper upper main reinforcement 22, and are required to be inserted into the beam members 2, 2. A long fixing length is ensured and cutting is performed.

The second embodiment will be described with reference to FIGS.

The present invention is a method of constructing a frame from a steel pipe column 1 in which concrete is filled and a beam member 2 precast into a solid cross section.

As shown in FIG. 8, the beam member 2 is manufactured by embedding a lower main bar 21, an upper main bar 22, and a stirrup 23 in a precast concrete 20. The stirrup 23 is completely buried in the precast concrete 20, and the ends of the lower main bar 21 and the upper main bar 22 project from the end surface of the precast concrete 20, as shown in FIGS. In the present invention, since the stirrup 23 is completely buried in the precast concrete 20, the precast concrete
A pin 9 protruding from the top end of the slab 20 to ensure the integrity with the slab concrete is embedded in the inside 20.

The steel pipe column 1 penetrates the joint with the beam, and the beam member 2 is separated from the flange 10 of the steel pipe column 1 by a distance from the flange 10.
It is the same as claim 1 that it is bridged between the adjacent steel pipe columns 1 and 1 in a state of facing.

In the present invention, since both the lower main bar 21 and the upper main bar 22 are buried in the beam member 2 and arranged, the both ends of the steel pipe column 1 are provided with flanges at the positions of the lower main bar 21 and the upper main bar 22.
The lower connecting bar 3 and the upper connecting bar 8 projecting from 10, 10 are pierced and arranged, and are connected to the lower main bar 21 and the upper main bar 22 by the coupler 6, respectively.

After the lower main bar 21 and the upper main bar 22 are connected, the lower main bar 21 and the upper main bar projecting from the beam member 2 in the same manner as in the above-mentioned invention.
Stirrups 23 are arranged around 22 and a joint formwork is installed around the steel pipe column 1 and concrete is poured into the inside of the beam member 2 and the joint. At this time, as shown in FIG. 9, a floor form 7 is erected between the beam members 2 and 2, and concrete of the slab is also cast. Concrete is cast separately inside the steel pipe column 1.

The slab streaks 12 are arranged below the cross hair 9 projecting from the top end of the beam member 2.
Thereby, the positioning of the floor form 7 is performed.

[0024]

According to the first aspect of the present invention, a frame is constituted by a steel pipe column in which concrete is filled, and a hollow or solid cross-section precast concrete beam member in which a lower main bar and a part of a stirrup are buried. In order to form a frame from a steel pipe column in which concrete is filled, and a beam member made of a precast concrete having a solid cross section in which a lower main bar, an upper main bar, and a stirrup are embedded,
In each case, the formwork of columns and beams is not required, reducing the amount of reinforcement at the site, increasing the strength and toughness of the columns, and eliminating unsupported construction and labor savings. Can be accommodated.

Also, since the steel pipe column penetrates the joint with the beam, the joint also has the same steel pipe concrete structure as the column.
The strength and toughness of the joint are also increased.

[Brief description of the drawings]

FIG. 1 is an elevation view showing an embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a cross-sectional view showing a production example of a beam member.

FIG. 4 is a cross-sectional view showing another example of manufacturing a beam member.

FIG. 5 is an elevational view showing another embodiment of FIG. 1;

FIG. 6 is an elevational view showing an embodiment of the second aspect of the present invention.

FIG. 7 is a plan view of FIG. 6;

FIG. 8 is a cross-sectional view showing an example of manufacturing a beam member.

FIG. 9 is a cross-sectional view showing the installation of a floor form on a beam member and the arrangement of reinforcing bars.

FIG. 10 is an elevation view showing a frame of columns and beams.

[Explanation of symbols]

1 ... steel pipe column, 10 ... flange, 11 ... through hole, 2 ...
Beam member, 20: Precast concrete, 21: Lower main bar, 22: Upper main bar, 23: Stirrup, 3: Lower connecting bar, 4: Ring stiffener, 5: Reinforced steel plate,
51 ... through hole, 6 ... coupler, 7 ... floor formwork, 8 ...
Top-end rebar, 9 ... cross hair, 12 ... slab.

Claims (2)

(57) [Claims] 1. A steel pipe column penetrating a joint with a beam, a lower main bar and a part of a stirrup are buried, a lower main bar protrudes from an end face, and an upper portion of the stirrup is a top end. This is a method of constructing a column / beam frame from precast concrete beam members that have a hollow cross section or a solid cross section that protrude from the beam, with the end faces of the beam members facing the side surfaces of the steel pipe columns. After erection between the adjacent steel pipe columns, penetrate the steel pipe columns, connect the lower main reinforcement of the beam member to the lower connection reinforcing bar protruding from the flange to the beam side, and let the upper main reinforcement penetrate the steel pipe columns,
After arranging the reinforcing bars between the beam members facing each other with the steel tube column interposed therebetween, connecting the upper main bar to the upper main bar continuous to the middle portion of the beam member, and then joining the steel tube column and the joint around the steel tube column A method of building an architectural frame in which concrete is cast inside to build a frame of one layer. 2. A steel pipe column penetrating a joint with a beam, a lower main bar, an upper main bar, and a stirrup are buried therein, and the lower main bar and the upper main bar protrude from an end face to form a solid cross section. This is a method of constructing a frame of columns and beams from precast concrete beam members manufactured in the following manner. After the beam member is installed between adjacent steel tube columns with the end surface of the beam member facing the side of the steel tube column, After connecting the lower and upper main bars of the beam member to the lower and upper connecting bars that penetrate the column and project from the flange to the beam side, concrete is poured into the joint around the steel tube column and inside the steel tube column. A construction method of an architectural frame that is constructed to build a frame of one layer.