JPH0328547B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an architectural structure in which most of the columns and beams are assembled as precast concrete members.

[Problem to be solved by the invention]

Many methods have been developed for prefabricated architectural columns and beams, but it is difficult to put them into practical use because the assembly and connection of each component is complicated, the workability is not good, and the reliability of the strength is poor. There are many cases where this is the case.

This invention was developed in view of the above circumstances.

[Structure and embodiments of the invention]

The gist of this invention is as described in the claims column, and the column is assembled with a steel frame with unit precast concrete inserted through its center, and the beam is made of a precast concrete member on the lower side with the steel frame exposed. This system is characterized by connecting the column and beam steel frames with connecting hardware, fixing the columns and beams with tendons, and placing cast-in-place concrete for the tops of the beams and the floor.

The details will be explained below with reference to illustrated embodiments. In the figure, 1 indicates a column and 2 indicates a beam. The column 1 is made by connecting and assembling unit precast reinforced concrete members 3 of a reinforced concrete structure of a predetermined length, and has a through hole 4 in the center, and a steel frame 5 such as a steel pipe or other H-beam is inserted into the through hole Fill mortar between 4 and steel frame 5. Furthermore, if necessary, each unit precast concrete member 3 is assembled integrally by inserting tension members 6 and other reinforcing bars into the peripheral portion, and injecting grafts. Also, at the installation height of the beam 2, there is a metal fitting 7 connected to the side of the column 1 from the steel frame 5.
It is set protrudingly.

The beam 2 is a steel frame 8 such as a flat steel or an I-shaped steel, and its upper and lower sides, at least the lower side, are integrally made of precast concrete members 9, and most of the steel frame 8 is exposed. Tension members 10 are inserted into the precast concrete member 9. Further, lattice bars 11 are arranged on the sides of the steel frame 8 as necessary.

When assembling column 1 and beam 2, connect the connecting hardware 7 to beam 2.
It is connected to the steel web using high-strength bolts. Further, the tension material 10 of the beam 2 is passed through the column 1 and fixed. Next, a formwork 12 and a slab formwork 13 are placed on both sides of the beam 2, floor reinforcing bars are arranged, and the upper part of the beam 2 and the slab are made of cast-in-place concrete.

〔Effect of the invention〕

This invention connects the assembled column steel frame and beam steel frame by inserting them into the central part of unit precast concrete members, and further connects the tension members arranged in the beam precast concrete members to the column precast concrete members. Since it is inserted through and fixed, on-site assembly is quick and easy. Cast-in-place concrete only requires pouring the upper part of the beam and the slab, so it is easy to construct from this point of view as well. In addition, the joint strength can be increased by inserting the tension material inserted into the beam into the column.

[Brief explanation of drawings]

Figure 1 is an elevational view of columns and beams before pouring concrete, Figure 2 is a sectional view of the beam, and Figure 3 is a sectional view of the column. 1...Column, 2...Beam, 3...Unit precast concrete member, 4: Through hole, 5...Steel frame, 6...
...Tension material, 7...Connection hardware, 8...Steel frame, 9...
Precast concrete member, 10... tension material, 11... lattice reinforcement, 12, 13... formwork.

Claims (1)

[Claims] 1. A column assembled by inserting a steel frame into the center of a unit precast concrete member, and a beam member whose lower side is made of precast concrete and has an exposed steel frame are connected by connecting hardware between the column steel frame and the beam steel frame. An architectural structure characterized in that a tension member placed in a precast concrete member of a beam is inserted and fixed in a precast concrete member of a column, and the upper part of the beam and a slab are made of cast-in-place concrete.