JPH019851Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a joint structure between beams, etc., that is, between beams and between beams and columns.

Conventionally, for example, as a method for joining PC beams together,
An H-shaped joint plate is made to protrude from the opposite end of the PC beam,
There is one that connects both joining plates with a splint, bolts, and nuts. However, according to this joining method, when concrete is poured into the joint, the horizontal flange on the upper side of the joining plate obstructs the flow, which prevents the concrete from flowing smoothly and causes poor concrete filling properties. It was hot.

This invention solves the above problems, and the features of this invention are that one of the members to be joined is a PC beam,
The other member is a beam or a column, a joint pipe is attached to the end of the reinforcing bar at the joint of both members, and the joint pipes of both members are connected and fixed with a threaded rod and nut, and the pipes are positioned above and below each member. By fixing the joining plates between the joint pipes, the joining plates are vertically arranged, and the opposing joining plates are connected to each other by splints.

Embodiments of the present invention will be described below based on the drawings.

Examples of applying this invention to the joining of beams are shown in Sections 1 to 3.
This will be explained with reference to the figures.

The beams to be joined are both composed of PC beams 1 and 1a, and beam main reinforcements 2 and 2a are arranged within both PC beams. Joint pipes 3 and 3 are installed at the tip of each beam bar.
The rear end of a is fitted and crimped, and each joint pipe is
It protrudes from the opposite ends of the PC beams 1 and 1a and is positioned in a mutually opposing position. Opposing joint pipes 3, 3
Both ends of threaded rods 5, . . . are screwed into the threaded holes 4, 4a of a to connect the joint pipes to each other, and the connection is fixed by nuts 6, .

Also, from the end of each PC beam 1, 1a, the joint plates 7, 7
Joint pipes 3, 3..., 3 protrude in parallel at regular intervals and are located above and below both sides of each joint plate.
a, 3a... to fix the joining plate in a vertical position. Bolt through holes 8, 8a are provided at the tip of each joint plate 7, 7a, respectively. The abutted joining plates 7 and 7a are connected by splint plates 9, and fixed by bolts 10,... and nuts 11,....

Next, construction will be explained.

First, one PC beam 1 is constructed in a predetermined position, then the other PC beam 1a is suspended, one end is opposed to the end of the PC beam 1, the joint plates 7 and 7a are butted against each other, and the splint plate 9 between both joint plates, and tighten bolt 10.
Temporarily fasten both joining plates with nuts 11 and 11. and
Connecting pipe 3 toward the connecting pipe 3 of PC beam 1.
The threaded rod 5, which has been attached in advance to the joint pipe 3, is moved forward by bringing the two nuts 6, 6 close to each other and turning both nuts, and is screwed into the threaded hole 4 of the joint pipe 3, thereby connecting the joint pipes 3 and 3a. Concatenate. Note that the nuts 6, 6 are then set at the positions shown in FIG. Then fully tighten nut 11. And PC
The joint between the beams 1 and 1a is surrounded by formwork, and concrete is poured from above to complete the construction.

The joining structure according to the present invention is not limited to joining beams together as in the above example, but can also be applied to joining PC beams 12 and columns 13 as shown in FIG. Please note that PC
The structure of the beam 12 is substantially the same as that of the PC beam 1, and corresponding components have the same reference numerals. Attachment holes 14a, . .
... passes through the web 14, and a joint pipe 16 is fixed to the tip of the fixing strip inside the web 14. The joint pipes 16 and the joint pipes 3 of the PC beams 12 are connected by threaded rods 5, and the connections are fixed with nuts 6. Further, stiffeners 17, 17a are attached horizontally to the web 14, and joining plates 18, 18 are attached to these stiffeners. Each joint plate 18,
The joint portions 18a, 18a of the PC beam 12 butt against the joint plates 7, 7 of the PC beam 12, and are connected and fixed by bolts 10, . . . and nuts 11, .

The construction is the same as that of PC beams 1 and 1a, and after temporarily fastening the joint plates 18 and 7, the screw rod 5 is installed.
Connect the joint pipes 16 and 3 with
8 and 7 are fixedly connected. After that, the formwork is installed and concrete is poured from above.

As explained above, according to the present invention, since the joint plates are installed vertically, the filling of concrete at the joint can be performed smoothly, and the joint pipes connected to the reinforcing bars are connected to each other with threaded rods. Therefore, the stress applied to one joining member can be directly transmitted to the other joining member. Furthermore, since the joint pipe is connected to the joint plate, it is easy to achieve positional accuracy of the joint pipe, which makes it easy to align the axes of the facing joint pipes, and to smoothly connect the threaded rods.

[Brief explanation of the drawing]

Figures 1 to 3 show one embodiment of the present invention, with Figure 1 being a perspective view showing a beam joint structure, and Figure 2 being a perspective view showing a beam joint structure.
The figure is a front view showing the state of connection between the joint plate and the joint pipe, Figure 3 is a perspective view showing the state of attachment of the joint plate and joint pipe, and Figure 4 is a partially cross-sectional front view showing the joint structure between a column and a beam. It is a diagram. 1, 1a... PC beam, 2, 2a... Beam main reinforcement, 3,
3a...Joint pipe, 5...Threaded rod, 6...Nut, 7, 7a...Joining plate, 9...Spinning plate, 12...
...PC beam, 13... Column, 15... Anchor bar, 16...
...joint pipe, 18...joint plate.

Claims (1)

[Claims for Utility Model Registration] Among the two members that are joined to each other, one member is
It is a PC beam, and the other member is a column or a beam, and main beam reinforcement is arranged in the longitudinal direction within the PC beam, and a screw hole is provided at the tip of the main beam protruding from the end face of the PC beam and at the axial center. Attach a joint pipe with the above-mentioned joint pipe, arrange reinforcing bars on the other member above, attach a joint pipe with the same configuration as the above joint pipe to the tip of the reinforcing bar, and make a joint pipe that protrudes from the end face of the PC beam between the joint pipes located above and below. Fix the joining plates vertically, and attach a joining plate between the upper and lower joint pipes of the other member so that they are in abutment with the above joining plate, and connect the joining plates in the butting state with splints, so that they face each other. Connect the above joint pipes with a threaded rod,
A joint structure for beams, etc. characterized by fixing the connection between the threaded rod and the joint pipe using two nuts attached to the threaded rod.