JPS58173239A - Slab with beam in pc building - 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 The present invention relates to slabs used in PC buildings, particularly slabs with integrated sills.An object of the present invention is to simplify the manufacturing means and significantly reduce the labor involved in on-site processing. The purpose of the present invention is to provide a slab with a beam that has excellent workability and economical efficiency.

Another object of the present invention is to completely prevent water leakage and infiltration from the joint between the wall surface and the beam by using a completely different method for mounting the wall board than in the past. We are trying to provide a slab with beams that can be used.

The means of integrating the slab and the girder in conventional PC buildings is to attach the base end of the slab that protrudes to the outside of the wall, such as a balcony, and one end of the indoor slab at the upper end of the PC beam. In most cases, this is done by mounting the parts and integrating the parts by on-site joining. However, in the case of this method, the PC slab is further placed and integrated on the upper surface of the girder, which is formed large enough to accommodate a predetermined strength, so the total height of the girder and slab thickness is Not only do they become extremely large and the cost of forming them becomes expensive, but they also have the drawback of making it difficult and inconvenient to design walls and other openings that connect to the lower ends of the girders. In order to solve these drawbacks, the structure of the large beam, which is set to the required size in advance, is made into a PC by reducing the thickness of the slab that connects to the entire top surface, and only the reinforcement for the joint with the club is exposed on the top surface. A method was developed in which one end of the slab was connected to the reinforcing material at the construction site, and then the connected part was filled with concrete to integrate the slab, but this method also reduced the height of the beam to that of the conventional girder. Although there is an advantage that the structure can be made lower by the thickness of the slab from the total dimension of height and slab thickness, it still does not solve problems such as the complexity of on-site construction work and the unsatisfactory waterproofing work of the connection between the girder and the upper end of the wall. There was a drawback.

The present invention aims to eliminate these drawbacks, and has been able to completely achieve its purpose by completing the invention described below.

Embodiments of the present invention will be described below with reference to the drawings.

That is, the slab with a beam of the present invention has an outdoor slab (2) integrally formed on one side along the length of a large beam (1) of a predetermined size, and an indoor slab (2) on the other side corresponding to this. It is characterized by the slab (3) being formed integrally and projectingly, and both ends of the girder (1) are made of an outdoor slab (3).
2) and both ends of the indoor slab (3). +111 is the steel frame placed inside the girder (1), u2...1121 is the reinforcing steel installed in the girder (1), the outdoor slab (2), and the indoor slab (3), respectively. A part of the installed steel frame (Ill and/or reinforcing bar Qz) is made to protrude outward from both ends of the girder (1).
) (5) is a pillar that is attached across the front of (1).

Next, a method for installing a beamed slab according to the present invention will be explained. First, based on the base plan - pillars for each floor (5).
...Build the frame for (5). Next, build the adjacent pillar (5).
) (5) Attach both ends of the girder (1) of the slab with beams formed by PC so as to extend over the upper end (not shown in the figure, but in this case, install the steel frames protruding from both ends of the girder (1) 11υ and rebar (121...++2
) to the steel frame and/or reinforcing bars at the upper end of the forest (5) respectively), and when the connection between the girder (1) and the column (5) (5) is completed, the PC-formed wall plate (4) is connected above and below it. Screw them together so that both ends are in contact with the front surface of the girder (1) (see Figures 3 and 4). In this case, the wall plate (
4) A cushioning material 141 such as asbestos foam or the like should be interposed at the contact area between the main beam (1) and ' or the contact area between the wall plate (4) and the outdoor slab (2), or a waterproof seal should be used. It is desirable to fill it with material. Further, a space for piping (6) can be provided at the upper end of the wall plate (4) as required. After installing concrete formwork on the remaining three sides of the pillar (5) whose front face was blocked by the installation of the wall plate (4), concrete was filled from the joint with the girder (1) to complete the assembly. This process is repeated each time the building frame is constructed. Note that a standing wall (2] 1 was formed on the front surface of the outdoor slab (2)), a cantilever (7) can be attached to the lower surface of the outdoor slab (2), etc., as desired.

The present invention configured as described above has the following structural features and construction method features.

+IJ Structural Features■ Dog 1 The PC structure is made by integrating the outdoor slab (2) and the indoor slab (3), compared to the conventional structure in which the slab is attached to the top of the girder. By doing so, we were able to keep the height of the girder (1) to a safe minimum.

As a result, not only can the appearance be made neater, but it can also contribute to reducing weight and lowering construction costs.

■ The integrated structure eliminates the need for on-site machining, making construction extremely easy.

■ Since the girder (1) and the slabs (2) and (3) are integrated, it is possible to completely eliminate the problems associated with waterproofing that occur when connecting by conventional on-site processing.

■ Since the outdoor slab (2) and indoor slab (3) are formed and integrated on both sides of the girder (1), a well-balanced product is formed, and cracks that are likely to occur when one side is balanced during construction can be avoided. There are no other problems.

(IF) Features of the construction method ■ Large beam (1), outdoor slab and indoor slab (3)
There is no need to worry about the troublesome construction work associated with on-site joints or the inaccuracy of integration〇■ Pillar (5) (5)
Immediately after erecting the main frame of
The wall plates (4) (41) can be attached between the upper and lower girders (1) (1), as shown in Figures 3 to 5. (5) can be closely attached to the front surface of the wall plate (4) to produce the effect of a template (concrete panel) on concrete pouring.Therefore, when constructing cast-in-place concrete for columns, the concrete formwork can be used without removing the wall plate (4). It is sufficient to attach it in a flat U-shape on three sides.

- The front surface (outdoor surface) of the pillar (5) remains covered with the wall board (4) and is not exposed, so there is no need for finishing, which is economical.

(2) Since the entire outer surface of the column (5) is covered with a PC wall plate (4), uniformity of the finished surface can be obtained.

■ Wall board (4) (4) is in front of the girder (1) (outdoor side)
This completely eliminates the waterproofing problems associated with the conventional method of attaching wall panels to the bottom of the girder.

■ In the case of conventional structures in which the pillars and walls are integrally molded, if the building is affected by earthquakes, etc. (or if it tilts, etc.), the walls along with the pillars will tilt, making it impossible to open and close the entrance/exit. However, in the present invention, the wall board (
4) Since (4) is integrated into the front of the Great Work (1) using only the bold joint means, even if vibrations or other external forces are applied to the pillar (5), it will not have the same negative effect as before. Furthermore, if a large external force is applied, the wall plate (4) can separate at the bolt joint, and there is no problem such as the inability to open/close the doorway.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and Fig. 1 is a side view of the building with some parts omitted, Fig. 2 is a plan view of the same as above, Fig. 3 is a sectional view showing the construction mode, and Fig. 4 is a wall. 5 is a sectional view taken along the line AA in FIG. 3, FIG. 6 is a plan view, and FIG. 7 is a partially sectional perspective view. (1)...Girder, (2)...Outdoor slab, (3)
... Indoor slab, (4) ... Wall board, (5) ...
Pillar. Patent applicant Odakyu Construction Co., Ltd. Hiro NoguchiFigure 2Figure 4Figure 5Figure 6

Claims (1)

[Claims] A slab with a beam in a PC building, in which an outdoor slab is integrally formed on one side along the length of the girder, and an indoor slab is integrally formed on the other side corresponding to this.