JPH01295952A - Pc slab floor capable of bearing horizontal load - Google Patents

Abstract

PURPOSE:To make braces to bear horizontal load unnecessary and to make effective use of the back side space of a floor by forming a large number of recessed and projected parts on the side of each of PC slabs and interlocking recessed and projected parts of the PC slabs adjacent to each other in the floor consisting of PC slabs arranged in the horizontal direction in parallel. CONSTITUTION:A large number of recessed and projected parts consisting of a key 2 and a key way 3 are formed on the side of each of PC slabs 1 in a floor consisting of PC slabs arranged in the horizontal direction in parallel. The recessed and projected parts of PC slabs adjacent to each other are interlocked, but, at the same time, they are connected to a construction body 4 as a unit. According to the constitution, PC slabs 1 themselves bear horizontal load, so that it is not necessary to use braces to bear the horizontal load. Therefore, a work is simplified, a ceiling height can be heightened and so on, the back side space of the floor can be effectively used.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to the construction of PC slabs (PC slabs) used in buildings using the frame-banel construction method, in which concrete panels are attached to steel frame frames.
precast concrete slabs).

In buildings using the conventional frame panel construction method, a steel frame is first assembled, and then PC panels for walls, floors, etc. are attached to the frame. In this case, in order to ensure the in-plane rigidity of the horizontal plane such as the roof or floor, a beam (21
) (21)... are installed in a rectangular space surrounded by (22) (22)....

Problems to be Solved by the Invention The above-mentioned places (22) (22)... are generally of tongue buckle type, and both ends are bolted or welded to form the beams (21) (21)... It is attached to a part of the corner and adjusts the tongue buckle to eliminate initial deflection and ensure in-plane rigidity.In recent years, building floor plans have diversified, and as a result, place (22) (22) The arrangement of... is complicated, and
The number of such devices has also increased, and their installation and adjustment require a great deal of effort, leading to an increase in the number of construction man-hours and a longer construction period. Another problem with this type of horizontally placed building is that it often lacks rigidity due to the design of rigid floor plates.

This invention solves these conventional drawbacks, and in view of the fact that hard PC boards are increasingly being used as flooring materials for buildings in recent years, this invention allows the PC boards themselves to bear horizontal shear loads. By doing so, the installation of a place as described above is not required.

Means for Solving the Problems In order to achieve the above object, the present invention forms a large number of unevenness consisting of keys and key grooves on the side surface of each PC slab in a floor where PC slabs are horizontally arranged side by side. ,
It is characterized in that the unevenness of adjacent PC slabs are interlocked with each other and are integrally connected to the structural frame.

In the above, it is conceivable to make a post on the structural body side protrude into the space of each PC knife 9, fill it with mortar, etc., and connect the post and the PC slab integrally.

Effect According to the configuration of the present invention described above, since the PC slabs and the floor constituted by the PC slabs and the structural qI body are integrally connected, the horizontal load acting on the PC slabs is
It is transmitted to the structural frame side through each PC slab.

Embodiment FIG. 6 is a plan view of a PC slab of the present invention. As shown in this figure, a trapezoid-shaped protruding key ( Similar to 2), key grooves (3) with many trapezoidal shapes are arranged continuously and alternately to form a large number of concavities and convexities. Then, the PC slab (1) thus formed is installed by placing both ends thereof on the upper surface of a beam (4) made of, for example, H-shaped steel, as shown in FIG. At that time, as shown in Figure 1,
Key (2) and key a (3) of mutually adjacent PC slabs (1) (1) are installed so as to mesh with each other.

As shown in Figure 2, each PC slab (1) (1)
Some of the corners of ... are cut diagonally (5) (5), which allows each PC slab (1) (1)
A space (6) is created adjacent to a portion of the corner. A square pipe-shaped post (7) attached to the beam (4) protrudes into this space (6), and mortar (10 ) with other solidifying agents, thereby P
C slabs (1) (1) and beams (4) that are the structural framework
are connected together via a post (7). For example, as shown in FIG. 3, this post (7) has a plate (8) fixed to its lower end fixed to the beam (4) in advance by bolts or the like. In this way, PC slab (1)
and beam (4), corner post (7) and mortar (
10), there is no need to use anything like bolts, making the construction work easy, and eliminating the need for high-precision tools unlike when providing bolt holes. Furthermore, a hole (11) is formed in the post (7) to communicate the inside and outside of the post (7), so that the inside and outside mortar (10) are integrated with each other.

Further, the shape of the post (7) is not limited to a square pipe shape, but may be a cross shape or various other shapes.

In addition, as shown in Fig. 2, each key (2) and key groove (
3) each interlocking PC slab (1) (1)...
A solidifying agent such as mortar (10) is also filled in the joints (9) between the two. In this case, the joint (9) has a tapered cross section such that the width of the lower end thereof is small.

Effects of the Invention As described above, according to the present invention, by interlocking and juxtaposing the concave and convex portions of each PC slab, these PC slabs are integrated with each other, and the PC slab and the structural frame are Since they are connected together, the above P
The floor made of C slabs will support the horizontal load as a whole. Therefore, there is no need to use a place to support horizontal loads as in the past, and the number of construction steps can be significantly reduced. Furthermore, compared to the conventional tongue buckle type place, the in-plane rigidity is higher, and a rigid floor board constant as designed can be obtained. Furthermore, since there is no place in the framework, it is possible to make effective use of the space on the back side of the floor, for example by increasing the ceiling height.

[Brief explanation of the drawing]

Figure 1 is a plan view showing the arrangement of each PC slab;
The figure also shows an enlarged plan view of the main parts, Fig. 3 is a perspective view of the corner post, Fig. 4 is an enlarged longitudinal cross-sectional view of the joint part of the PC slab, and Fig. 5 shows the arrangement of the PC slab. 6 is a plan view of the PC slab of the present invention,
FIG. 7 is a perspective view of a conventional steel framework with a place attached. (1)...PC slab, (2)...key, (3)...
...Keyway, (4)...Beam, (7)...Corner post.

Claims (1)

[Claims] 1. In a floor configured with PC slabs arranged horizontally in parallel, a large number of unevenness consisting of keys and keyways are formed on the side surface of each PC slab, and those unevenness of adjacent PC slabs are formed. A floor made of PC slabs designed to bear horizontal loads, characterized by interlocking with each other and integrally connected to a structural frame. 2. A claim in which a post on the structural frame side is protruded into a space formed between each PC slab, the space is filled with a solidifying agent such as mortar, and the post and the PC slab are integrally connected. A floor made of a PC slab designed to bear the horizontal load described in Item 1.