JPH049403Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to the earthquake-resistant structure of a high-rise building made of reinforced concrete, and more specifically, to the seismic isolation partition wall of a high-rise building constructed as a housing complex. It is something.

[Prior Art] Generally, when a building is constructed as a concrete (hereinafter referred to as RC) high-rise building, it has a pure rigid frame structure or a similar structure with few shear walls. For this reason, it is better not to install highly rigid walls such as earthquake-resistant walls. Therefore, shear walls with variable rigidity have been developed by adding various means to fixing them to surrounding frame structures. On the other hand, if this building is planned as a residence, a high level of sound insulation is required between each living room, especially from the perspective of privacy, and reinforced concrete bulkheads are desirable, but this type of construction method itself has a long history. Because it is shallow, it can be said that there is no known effective means of isolating it from the frame frame.

[Problems that the invention aims to solve] Conventional RC partition walls are effectively treated as earthquake-resistant walls in terms of their earthquake-resistant structure, contributing to bearing horizontal forces during design, and at the same time improving sound insulation properties. However, due to the structural theory of high-rise buildings, the frame frame is heavy, so as mentioned above, it is difficult to achieve both structure and sound insulation. Can not. In addition, since sound insulation is directly related to the mass of the wall,
Although a wall is desired, at the same time, no wall body has been proposed that has an effective isolation means between the frame frame and the frame frame without increasing the rigidity of the frame, and a solution to this problem has been posed.

Furthermore, the labor situation has worsened in recent years, and there is a significant shortage of carpenters and reinforcing steel workers in particular, so we must avoid as much as possible the construction of walls that require complex processing or construction methods on site. No.

[Means for solving the problems] The present invention eliminates the above-mentioned drawbacks, adapts high-rise buildings whose structural frames are made of reinforced concrete for residential use, and also improves the current It was developed with the aim of accelerating the prefabrication stage and reducing on-site construction in order to meet labor conditions, and the partition walls are made of precast concrete (hereinafter referred to as RC) boards. The gist of this article is that when it was manufactured and erected between the frames of the framework, the surrounding support structure was established as a shear wall. And that wall is
It has a protrusion that is embedded in the floor concrete along the bottom edge, and grooves are formed on the end faces along the side and top sides, and each groove is lined with a cushioning material made of foamed synthetic resin. At the same time, fireproofing material is attached to the end faces on both sides of the groove, and additional concrete is integrally installed on the outside of the structural cross section of the columns and upper floor beams, and the side and top sides of the wall are mating and supporting;
It is characterized by forming a seismic isolation wall whose bottom edge is fixed to the floor. Therefore, according to the present invention, the above-mentioned seismic isolation wall has a structure between the side and top sides of the wall so that the support of the four circumferences by the columns and beams can follow the deformation of the frame parts such as the columns and beams. This is fixed to the shaft with a cushion material interposed in the slit section, which allows the basic frame structure to be established as the frame structure of a high-rise building, and also has sound insulation properties as a partition wall. The project succeeded in simultaneously ensuring fire safety and improving construction efficiency.

[Example] The support structure of the seismic isolation wall of a skyscraper of the present invention was
Details will be explained based on drawings showing preferred embodiments. Figure 1 is a schematic general side view representatively showing a part of the framework frame of a residential high-rise building made of RC. It consists of 3 is a wall built on this structural surface R, which is a lightweight concrete plate and is prefabricated using PC.
The lower side of the wall 3 is fixed on the concrete floor 4 in order to serve as a seismic isolation wall, but the side and upper sides are connected by providing slits 5 between the columns 1 and beams 2, respectively. be. FIG. 2 is a sectional view of the main part of the wall 3, and figures a, b, and c are taken along the line A-A in FIG. 1, respectively.
FIG.

In Figure 2 a, 31 is a 10 mm high protrusion formed along the lower side of the wall 3, and 41 is a groove formed on the top surface of the concrete floor 4 at the installation position of the wall 3. be. In this embodiment, the groove 41 has a depth of
The width is 20 mm, and the width is about 60 mm larger than the thickness of the wall 3. The wall body 3 is built and fixed in the center of a groove 41 filled with paste-like mortar 42.

FIG. 2B is a horizontal sectional view of the end of the wall 3 along the column. The end face of wall 3 has a horizontal cross section of approximately V
A letter-shaped concave groove 32 is formed, and a cushioning material 3 is attached to the inner surface of the groove. The cushioning material 33 is made by combining plates of polystyrene rigid foam material cut into appropriate widths, and using adhesive to form a groove shape in the shape of the groove 32 of the wall body 3. It protrudes 20 mm along the edge of the groove 32. wall 3
A fireproofing material 34 is attached to the remaining portions on both sides of the groove 32 at the end face. The fireproofing material 34 is made of ceramic fiber material in the form of wool, and its thickness is equal to the protruding dimension of the cushioning material 33.
Their outer ends are in contact with the opposing surfaces of the pillars 1.

The cross section of the column 1 is the original structural cross section 11 of the column, which is the wall 3.
The additional concrete 12 of the column is integrally formed with a cross section added to the outside near the wall 3. This additional concrete 1
2 has a thickness of 30 mm or more and swallows the edge of the wall 3 by 10 mm or more, and the part that contacts the concrete surface of the wall 3 and the end surface of the fire protection material 34 is coated with butyl rubber or Teflon. ” (registered trademark)
It is insulated from the additional concrete 12 that will be cast later by sandwiching an insulating sheet material 35 such as the like. The additional concrete 12 of the column 1 is also poured into the vertical groove 32 of the wall 3, forming a protrusion 13 there. The curved space occupied by the buffer material 33 and the fireproof material 34 forms a slit 5 in the concrete structure.

Figure c in Figure 2 is a vertical cross-sectional view of the part where the wall 3 comes into contact with the beam 2.
The structure is the same as in Figure b, except that the structural cross section of the beam is 21, the additional concrete is 22, the central protrusion is 23, and the thickness of the additional concrete 22 is 20 mm or more.

[Function] The function of the seismic isolation wall of the present invention will be explained based on the construction process of the wall body 3 and the seismic function. Mortar 42 is spread and filled into the groove 41 formed on the upper surface of the concrete floor 4 of the floor shown in FIG. PC wall body 3 with integrally formed brake hub
first, set it in the mortar 42 from the protrusion 31, position it, and then set it in the mortar 42.
2 and fix the wall 3. On the other hand, when constructing the formwork 6 that forms the column 1, the additional concrete 1
At the same time, the formwork 61 forming part 2 is also erected,
It is formed so as to swallow the side edge of the wall body 3, and
Structural cross section 11 of the column with insulating sheet material 35 interposed
Concrete, additional concrete 12, and ridges 13 are placed at the same time. The additional concrete 12 is molded in a formwork 61, and the concrete of the protrusions 13 is molded in a groove formed by the buffer material 33. Subsequently, when the beam 2 and the floor concrete 4 of the upper floor are poured in the same manner, slits 5 are formed between the column 1 and the beam 2 and the wall 3.
is formed and the wall 3 is fixedly supported, and the wall 3 becomes a seismic isolation wall of the structural surface R.

Even if a horizontal force acts on this structural surface R and causes interlayer displacement in the structure, the shock absorbing material 33, which is a synthetic resin foam,
It is absorbed within the plane of the wall 3 by the deformation of the fire protection material 34, which is a ceramic wool body, and the wall 3 acts as a seismic isolation wall that does not exhibit rigidity even though it is incorporated into the structural surface R. do.

[Effects of the invention] The support structure of the seismic isolation wall of this invention applies lightweight concrete PC board partition walls to the structural frame of an RC high-rise building, and provides slits on three sides of the partition walls.
By interposing a buffer material in this structure and fixing it with additional concrete, we completed an earthquake-resistant structure for a superhigh-rise building using reinforced concrete partition walls as seismic isolation walls. This slit is filled with fireproofing material, and its curved cross section provides sufficient sound insulation and fireproofing properties compared to concrete, making it suitable as a partition wall. In addition, since the partition walls are prefabricated as PC boards, construction is easy, and there is no need for reinforcing bars at the connections, reducing labor on site.
The construction period will also be shortened. Since the PC board is made of lightweight concrete, it can be erected using small lifting equipment even when the structure is large. Furthermore, the PC
High precision can be ensured in this aspect as well, as the protrusions on the plate are formed without the use of a pitcher and can be built into cast-in-place concrete or mortar.

[Brief explanation of the drawing]

The drawings show an embodiment of the seismic isolation wall support structure of the present invention, FIG. 1 is a front view of one structure in a general frame, and FIG. 2 a, b, and c are respectively A of FIG. 1.
- A detailed cross-sectional view of the joint between the wall and the structural frame along line A, line B-B, and line C-C, in which figure a is the lower side of the wall and concrete floor, figure b is the side of the wall. Figure c shows the connection between the upper side of the wall and the concrete beam. 1... Column, 2... Beam, 3... Wall, 4... Floor concrete, 5... Slit, 6... Formwork, 11
... Structural cross section of the column, 12 ... Additional concrete of the column, 13 ... Projection, 21 ... Structural cross section of the beam, 22
...Additional concrete for the beam, 23...Protrusion, 31
... Protrusion, 32 ... Concave groove, 33 ... Cushioning material, 34
...Fire prevention material, 35...Insulating sheet material, 41...Ditch, 42...Mortar, 61...Additional concrete formwork, R...Structure surface.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a partition wall constructed on the structure of a high-rise building made of reinforced concrete, the wall is a precast concrete plate made of lightweight concrete, It has a protrusion that is embedded in the floor concrete, and grooves are formed on the end face along the side and top sides, and each groove is lined with a cushioning material made of foamed synthetic resin.
Fireproofing material is attached to the end faces on both sides of the groove, and additional concrete is integrally provided on the outside of the structural cross section of the columns and upper floor beams, and the sides and top of the wall are fitted together. 1. A support structure for a seismic isolation wall of a super high-rise building, characterized in that the seismic isolation wall is supported by a base and whose lower side is fixed to the floor surface. (2) The foamed synthetic resin is hard polystyrene;
A support structure for a seismic isolation wall of a super high-rise building according to claim 1, wherein the fireproofing material is a ceramic fiber. (3) Additional concrete is cast integrally with the structural frame using a concrete form provided outside the specified design cross section, and fits and supports the side edges of the seismic isolation wall, as well as providing seismic isolation. A support structure for a seismic isolation wall of a super high-rise building as claimed in claim 1 or 2 of the utility model registration claim, characterized in that a protrusion is formed that engages in a groove in the wall.