JP2000179077A - Installation method of PCa version for outer wall - Google Patents

Abstract

(57) [Summary] [Problem] To mount an outer wall PCa plate that can save labor for slab casting without impairing the function of a fastener by simply changing the structure of the outer wall PCa plate and changing the mounting position of a steel bracket such as an angle. Provide a way. An outer wall PCa plate 1 having a cantilever slab 2 at the top and a jumping PC fastener 3 at an intermediate portion is provided.
A method for mounting an outer wall PCa version 1, wherein the outer wall PCa version 1 is suspended by a PC bracket 5 installed on a structural frame B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for mounting a precast concrete curtain wall (hereinafter referred to as "outer wall PCa version").

[0002]

2. Description of the Related Art There are various types of fasteners conventionally used for mounting an outer wall PCa plate, and each fastener is properly used depending on its use and conditions. The functions of the outer wall PCa version fastener are roughly divided into the following three, and each has a fine adjustment function that can be set at a predetermined position. Vertical support function to support the own weight of the outer wall PCa version and seismic force. In-plane horizontal support function to support horizontal seismic force in the outer wall PCa plane. Out-of-plane support function that supports wind pressure and seismic force outside the outer wall PCa plane.

In a fastener having a vertical support function, a bracket is installed on the back surface of the outer wall PCa plate with a steel material such as concrete or an angle, and the bracket supports the own weight of the outer wall PCa plate and the vertical force at the time of an earthquake.

However, this method has the following problems. In the case of a concrete bracket, it is troublesome during the manufacturing process of the outer wall PCa plate, and it is necessary to attach another fastener having an out-of-plane support and an adjusting function. Furthermore,
Concrete brackets reduce room space,
There are disadvantages that limit the design. In the case of a bracket made of steel such as an angle, the member becomes large in order to have a positioning function, and is often irrational. In addition, there are fasteners that cannot be handled by two methods (locking type and sway type) that follow the behavior of a building during an earthquake. Since the fastener mounting position of the outer wall PCa plate is located at the upper end of the beam, when casting the slab concrete, it is necessary to perform processing such as removing the formwork of the projecting part and the box of the fastener part, which is troublesome.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems. The present invention has been made by simply changing the structure of the outer wall PCa plate and changing the mounting position of a steel bracket such as an angle. It is an object of the present invention to provide a method of mounting the outer wall PCa plate, which can save labor without impairing the function of the above.

[0006]

SUMMARY OF THE INVENTION An outer wall P having a cantilevered slab at the top and a protruding PC fastener at an intermediate portion.
A method for mounting an outer wall PCa plate, wherein the Ca plate is suspended by a PC bracket installed on a structural body.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

<A> Overall Configuration FIG. 1 is a side sectional view showing the outer wall PCa plate 1 according to the present invention mounted, and FIG. 2 is a plan view thereof. The outer wall PCa slab 1 is a precast concrete slab having a cantilever slab 2 at the top and a protruding PC fastener 3 at an intermediate portion.
On the other hand, in order to support the outer wall PCa plate 1, the structural frame B
The PC wall 5 is installed on the outer wall and the outer wall PCa version 1 is suspended and supported.

<B> Outer Wall PCa Plate The outer wall PCa plate 1 has a cantilever slab 2 at the top and constitutes a part of the structural slab. A well-known expansion joint is installed on the joint surface with the structural slab, and is used as a free end surface. (Not shown) In the middle part of the outer wall PCa plate 1, a protruding PC fastener 3 is installed in advance to form an integral structure. The PC fastener 3 is made of steel or the like, has a well-known dowel hole, and is configured to be finely adjusted and fastened to a PC bracket 5 described later by a dowel pin. (Not shown)

<C> PC bracket The PC bracket 5 is made of steel or the like and is fixed to the structural frame B. A screw thread for screwing a dowel pin is engraved at the end of the PC bracket 5.
The fastener 3 and the PC bracket 5 are fastened. (Not shown)

<D> Reinforcement material PC fastener 3 and PC through large beam 4 of structural frame B
In order to connect the bracket 5 firmly, a reinforcing material 6
Install. The reinforcing member 6 has a structure in which the slab or the small beam of the structural frame B is connected to the large beam 4 via the gusset plate 61, and the reinforcing plate 62 is provided in the flange of the large beam 4 and the web. In addition, when the outer wall PCa plate is attached before the slab casting, a small beam is required. (Not shown)

[0012]

The method of mounting the outer wall PCa plate according to the present invention will be described below.

<A> Mounting of PC bracket The PC bracket 5 is mounted on the structural frame B. Structural frame B
When the frame is assembled, for example, PC
The bracket 5 may be attached integrally. The attachment of the PC bracket 5 is not limited to the lower end of the girder 4 shown in FIG. Further, a stud bolt 7 or the like may be provided at the top end of the girder 4 for reinforcement against twisting.

<B> Installation of Reinforcing Material The reinforcing material 6 extends over the slab and the small beam and the large beam 4 of the structural frame B.
Is installed. The reinforcing member 6 may be previously installed on the girder 4 via the gusset plate 61, and after the frame of the structural frame B is assembled, the other end of the reinforcing member 6 may be connected to the slab of the structural frame. A reinforcing plate 62 is provided in the flange and web of the girder 4 to increase the rigidity of the girder 4.
A hand hole 63 is previously established on the web of the girder 4 to improve workability.

<C> Mounting of the outer wall PCa plate After the above operation is completed, the outer wall PCa plate 1 is lifted by a crane or the like, and the PC fastener 3 is placed on the PC bracket 5. Screws engraved on PC bracket 5 and PC
After adjusting the position of the hole just drilled in the fastener 3,
The dowel pin is inserted into the screw thread, and the mounting of the outer wall PCa plate 1 is completed.

[0016]

Since the present invention has been described above,
The following effects can be obtained. <A> Since the PC fastener is located in the middle part of the outer wall PCa plate, efficient work can be performed without hindrance in placing slab concrete. <B> Since a cantilever slab is provided on the top of the outer wall PCa plate, it is only necessary to install a well-known expansion joint on the joint surface with the structural slab when casting slab concrete. can do.

[Brief description of the drawings]

FIG. 1 is a side sectional view of an outer wall PCa plate mounting according to the present invention.

FIG. 2 is a plan view of the same.

Claims (1)

[Claims] 1. A method for mounting an outer wall PCa plate by a locking method and a sway method, comprising: mounting an outer wall PCa plate having a cantilever slab on a top portion and a protruding PC fastener in an intermediate portion on a structural body. A method for mounting an outer wall PCa version, wherein the outer wall PCa version is suspended by a set PC bracket.