JPH0458869B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for constructing joints of reinforcing bars during wall reinforcing work.

[Prior art]

Recently, prefabricated reinforcing bars have been used to save labor in wall reinforcing work, but the joints between each unit of the reinforcing bars formed by this have been tied together by hand as in the past.

[Problems to be solved by this invention]

However, since the joints are made manually, it requires a lot of time and effort, and is not efficient.

This invention was developed in order to solve the problems of the conventional art, and aims to eliminate the manual work involved in making the joints and to save labor by prefabricating the joints.

[Means for solving problems]

In this invention, a joint unit is formed by binding a plurality of reinforcing bars in a sash shape with strings at intervals, and this joint unit is hoisted at the site, the spacing between the reinforcing bars is widened, and the joint unit is attached to the joint part of the wall reinforcing bars. This is a construction method for a joint section of wall reinforcing bars, which is characterized in that each reinforcing bar of the wall reinforcing bars and each reinforcing bar of a joint unit are tied together.

〔Example〕

The following description will be made based on the illustrated embodiment.

Reference numeral 1 indicates a unit wall reinforcement manufactured in advance at a factory, and 2 indicates a joint unit of a general portion that is bound to a joint portion 3 of the unit wall reinforcement 1. This general joint unit 2 is manufactured in advance at a factory.
The reinforcing bars 4 of the plurality of joint units are arranged horizontally and parallelly in the height direction at the same intervals as the horizontal bars 5 of the wall units of the unit wall reinforcements 1 to be connected, and strings such as wire ropes and chains are connected to the left and right parts of the reinforcing bars 4 of the plurality of joint units. At 6, the reinforcing bars 4 of the joint unit are tied together to form a blind shape. Then, when transporting it to the site, it is kept in a contracted state.

In order to connect the unit wall reinforcements 1 on the straight part of the wall using the joint unit 2 on the general part, first lift the upper part of the joint unit 2 on the general part with a crane as shown in FIG. 4 are attached to the side surface of the joint part 3 of the unit wall reinforcement 1, and each reinforcing bar 4 of the joint unit is tied to each reinforcing bar of the unit wall reinforcement 1. In this case, the joint unit 2 of the general section is attached and bound from both sides of the unit wall reinforcement 1, as shown in FIG.

Figures 3 to 7 show embodiments at wall intersections. Reference numeral 7 shows the intersection joint unit to be used, in which each reinforcing bar 8 of a plurality of intersection joint units formed in a T-shape in advance is connected to each horizontal reinforcement 5 of the wall unit of the unit wall reinforcement 1 to be connected. The reinforcing bars 8 of the intersection joint unit are arranged horizontally and parallelly at the same intervals in the height direction, and bound to each other with strings 6 such as wire ropes or chains. The reinforcing bars 8 of the intersection joint unit include two reinforcing bars 8a arranged in parallel as shown in FIG.
A U-shaped anchor 8b is attached in a direction perpendicular to the central part in the length direction of a. Further, as shown in FIG. 7, two parallel reinforcing bars 8c may be attached via a fixing plate in a direction perpendicular to the longitudinal center of the reinforcing bar 8a.

The joint units 7 at the intersection are placed in a stacked state as shown in FIG. is suspended and attached to the side surface of the joint part 3 of the unit wall reinforcement 1, and the reinforcing bars 8 of the intersection joint unit are tied to the reinforcing bars of the unit wall reinforcement 1. In this case, as shown in FIGS. 6 and 7, the joint units 7 at the intersection are attached and tied together from the inner surfaces of the unit wall reinforcements 1, respectively.

〔Effect of the invention〕

As described above, in this invention, a joint unit in the form of a blind is manufactured in advance in a factory, transported to the site in a contracted state, and this joint unit is hoisted at the site, and the spacing between reinforcing bars is automatically widened to connect the joints of the unit wall reinforcements. Because it is tied to each reinforcing bar, manual work at the joints is greatly reduced, labor-saving work is possible, and construction time can be expected to be shortened.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the condition of the general joint unit being hung in the vertical part of the wall, Fig. 2 is a cross-sectional view showing the state of attachment of the joint unit to the unit wall reinforcement, and Fig. 3 Figures 5 to 5 are perspective views showing the state of the hanging work of the joint unit at the intersection at the intersection of walls, and Figures 6 and 7 are cross sections showing the state of attachment of the joint unit to the unit wall reinforcement. It is a diagram. DESCRIPTION OF SYMBOLS 1...Unit wall reinforcement, 2...Joint unit of general part, 3...Joint part, 4...Reinforcement bar of joint unit, 5...Horizontal reinforcement of wall unit, 6...String body, 7...
...Joint unit at the intersection, 8...Reinforcement bar at the joint unit at the intersection.

Claims (1)

[Claims] 1. A joint unit is formed by binding a plurality of reinforcing bars at intervals with strings in a sash-shape, hoisting this joint unit on site, widening the spacing between the reinforcing bars, and attaching it to the joint part of the wall reinforcing bars. A method for constructing joints of wall reinforcing bars, characterized by tying together each reinforcing bar of the wall reinforcing bars and each reinforcing bar of the joint unit.