JPS628246Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a steel beam that is intended to be constructed from columns of reinforced concrete structure (hereinafter referred to as RC structure) and beams of steel frame construction or reinforced steel structure (hereinafter referred to as SRC structure). The present invention relates to an RC structure frame constructed from steel and prefabricated reinforced column members.

Most of the proposals regarding conventional prefabricated reinforcing bar assembly construction methods are methods for using prefabricated reinforcing bars for columns and beams, or for constructing prefabricated reinforcing beam members on column SRC structures. In addition, although there are many needs for buildings, many designs include frame structures in which the columns are RC structures and the beams are SRC structures or steel structures, that is, rigid-frame buildings.
There are also cases where the beams are made of precast concrete members and the columns are made of cast-in-place concrete. For such a frame structure, the present invention provides a technique for the column-beam joint joint, including an erection method.

The prefabricated reinforcing steel members (columns or beams) referred to in this specification are manufactured using methods such as factory production, such as assembly construction methods in which hoop reinforcements are organized into longitudinal main reinforcements using a hoop knitting machine, and other methods. Refers to the reinforced column or beam member used. The technical scope of this invention is that the columns of the frame use prefabricated reinforcing members,
Install the end flange material of the beam steel frame onto the support plate for erection inside the joint, which has been prepared in advance at the joint.
A separate main reinforcing bar arranged in the column axis direction is passed through the erection support plate and the end flange material of the beam steel frame, and these are integrated mechanically or by welding. In other words, the support plate for erection inside the joint, and the end flange material of the beam steel frame,
A method of mechanically fixing it with a separate main reinforcement (steel bar fixed in the axial direction inside the column joint) that passes through it in the long axis direction of the column,
Or a frame structure characterized by configuring a joint mechanism between columns and beams by fixing them together by welding and sufficiently fixing the separate main reinforcement within the column members (for rigid-frame buildings). etc.).

Next, an embodiment of the present invention will be described below with reference to FIGS. 1, 2, and 3.

The four corner main reinforcements 1 of the prefabricated reinforcing bar column member A (the column cross section is not limited to a rectangular shape, but may also have a circular cross section, etc.) between the support plates 2 and 2a for erection within the joint fixed vertically at a predetermined interval. The end flange members 3, 3a of the beam steel member B are inserted and installed, and the threaded reinforcing bars 4, 4 (as described in Japanese Utility Model Application No. 55-58817) are installed between the receiving plates 2, 2a and the end flange members 3, 3a. The joints of the deformed reinforcing bars (such as the above) are passed through the steel bar (with the knots likened to screws), and the nuts 5 are used to mechanically tighten and secure the joints. The threaded reinforcing bars 4, 4 are fixed together by welding, and their ends are inserted and fixed into the column member. That is, the threaded reinforcing bars are used to fix the inside of the joint in the axial direction, thereby integrating the joint part and configuring a frame of the beam steel member B and the prefabricated reinforcing column member A, which enables assembly and erection. It is.
Next, Fig. 4 shows an example in which the support plate 2 for installation in the joint of the prefabricated reinforcing bar column member A is made of L-shaped steel, and the support plate 2 and the main reinforcements at the four corners are fixed by welding. Bolts or other fixing hardware may be used.

Further, the embodiment shown in FIG. 5 is a case where a precast concrete member 6 is used as the beam member, and a steel frame flange member 7 is fixed to the end thereof. As shown in each of the embodiments above, the frame structure of the present invention has columns made of RC structure cast on site and beams made of steel or SRC structure. It is also possible to make the beam a precast concrete member and use the prestressed construction method, but in this case, the flange material (steel frame) at the end of the beam member is mainly
It will mainly share the shear stress of the beam.

That is, according to the present invention, a support plate for joint erection is fixed to the main axis reinforcing bar of a column member, a steel frame flange of a beam member is installed on the support plate, and the support plate and steel frame are inserted and fixed to integrate the whole. This has the effect of making the joint part extremely strong and ensuring the connection between the columns and beams. In particular, columns and beams have the effect of having sufficient resistance against tensile forces not only in the horizontal direction but also in the vertical direction due to the metal connections.

[Brief explanation of the drawing]

Fig. 1 is a partial front view of an embodiment of the present invention, Fig. 2 is a cross-sectional plan view, Fig. 3 is a perspective view, and Figs. 4 and 5 are front views of other embodiments. . A... Prefabricated reinforced column member, B... Beam steel member. 1...Four corner main bars, 2, 2a...Support plate for erection within the joint, 3, 3a...End flange material, 4...
...threaded reinforcement.

Claims (1)

[Scope of utility model registration request] A receiving plate for joint erection is fixed to the main axis reinforcing bar of the prefabricated reinforced column member, a beam member steel flange is installed on the receiving plate for joint erection, and a steel bar fixed in the axial direction within the column joint is inserted into the receiving plate and the steel flange. This is an RC structural frame made up of a steel beam material and a prefabricated reinforcing column member, in which a steel beam material is framed on a prefabricated reinforcing column member that is fixed and integrated.