JPS63197745A - Construction method for executing pc floor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method of constructing a PC floor having a protruding floor plate constituting a part of a balcony.

(Prior Art) In the conventional construction of this type of floor, as shown in Fig. 4, a PC floor plate (Al and protrusion PC floorboard CB) f, and install the floor PC floorboard (A) between adjacent PC girders fc), and protrusion PC floorboard @
One end is mounted on the outermost PC girder (C), and the other end is supported by a support (not shown), and each of the PCs
After placing connecting bars (b) over the floorboards (A) and CB), post-cast concrete (DJ) was placed on each of the PC floorboards GA) and (B), as well as on the PC girder (C). It was being poured.

(Problems to be Solved by the Invention) In the conventional construction method, it is necessary to support the protruding PC floorboards, and the reinforcement work on each of the PC floorboards, as well as the pouring of post-cast concrete, are required. work required,
There were problems in that the construction process was complicated, prolonging the construction period, and increasing construction costs.

(Means for Solving the Problems) The present invention has been proposed in order to solve these problems, and involves arranging the protrusion part PC floorboard and the floor part PC floorboard opposite each other with a gap. At the same time, a PC floor member in which truss reinforcements are continuously arranged across the gap and both PC floorboards is placed on top of the PC girder with a part of the ribs protruding from the upper surface of the PC girder. The above-mentioned problem is solved by constructing the structure so that the gap is located and then pouring concrete into the gap.

(Function) As described above, in the present invention, the protruding part PC floor plate and the floor part RC part floor plate are disposed opposite to each other with a gap, and a truss is provided between both the PC plates and the intervening chambers. By arranging the reinforcements, a single PC floor member with sufficient shape-retaining performance and rigidity is constructed despite the presence of gaps, and the PC floor member is placed on the outermost PC girder as described above. The gap is located on the girder, and the reinforcement is constructed so that a part of the rib protrudes from the top surface of the girder in the gap, and then joint concrete is placed in the gap. Each PC floor plate and PC girder are integrated.

(Effects of the Invention) As described above, according to the present invention, there is no need to support the PC floor plate at the protruding part, and the reinforcement arrangement and post-cast concrete placement after the PC floor member is installed on the PC girder, This eliminates the need for finishing work, significantly simplifies construction, shortens construction period, and reduces construction costs.

(Example) The present invention will be described below with reference to the illustrated embodiments.

(1) is a protruding part floor plate with a sloped upper surface, and (2) is a floor part PC floor plate, which are installed opposite each other with a gap, and extend across the gap and each of the PC floor plates (IO2). The truss bars (3) are arranged continuously at the same pitch or higher than the designed upper end main bars, and the PC floor plates (1) and (21) are configured to have sufficient rigidity with shape-retaining performance. One PC floor member is comprised of:

Note that the protrusion floor plate (1) portion of the truss bar (3) has the same slope as that of the floor plate (1).

(4) is a PC girder with a built-in steel frame, and a part of its ribs (5) protrudes from the top surface of the girder.

Then, the PC floor member is constructed so that the opposing ends of the protruding part PC floor plate (1) and the floor part PC floor plate (2) rest on the PC girder (4), and ) into the gap between the two PC floor plates (IO2), and pour joint concrete (6) into the gap to connect the PC floor member and the PC girder (4). Unify.

As described above, according to the embodiment, the protruding portion PC floor plate (1
) support is no longer required, and reinforcing and post-cast concrete work after the PC floor members are erected on the PC girders are no longer required, significantly simplifying construction, shortening the construction period, and reducing construction costs. It is something that

[Brief explanation of the drawing]

, Fig. 1 is a longitudinal cross-sectional view showing the implementation status of one embodiment of the PC floor construction method according to the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a longitudinal cross-sectional view of the truss bar, and Fig. 4 is a conventional one. FIG. 2 is a vertical cross-sectional view showing the implementation status of the PC floor construction method. (1)...Jumping part PC floor plate (2)...Floor part PC
Floor board (3)...Truss bar (4)...PC
Major beam (5)...costal muscles! t;i...
Bonded concrete agent Patent attorney Shige Okamoto 2 people Figure 1 Figure 2

Claims (1)

[Claims] A PC floor member is provided in which a protruding part PC floor plate and a floor part PC floor plate are disposed opposite to each other with a gap, and truss reinforcements are continuously arranged across the gap and both of the PC floor plates. , a PC floor construction characterized in that it is constructed on a PC girder with a part of the ribs protruding from the upper surface so that the gap is located on the upper surface of the girder, and then joint concrete is poured in the gap. Method.