JPH0932164A - Building structure - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a building structure provided with a curtain wall capable of following vertical displacement of a structure during an earthquake. SOLUTION: The building is divided into a middle layer portion 2 in which vertical vibration is relatively small at the time of an earthquake, and an upper layer portion 3 and a lower layer portion 4 in which vertical vibration is relatively large, and the middle layer portion 2 is a wall-side beam. 5 is integrally connected to the upper and lower sides by two joint pillars 6,
The curtain wall 7 is vertically movably attached to the structure 1a of the middle layer by a slide fastener 8, and the stud 1 for the upper layer is attached to the floor slab 9a on the uppermost floor in the middle layer.
3 are erected, and studs 15 for the lower layer are hung vertically on the beam 5a on the lowermost floor of the middle layer 2.
The curtain walls 16 and 17 attached to 5 are attached by a slide fastener 8 so as to be vertically movable.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-rise building structure having a large span.

[0002]

2. Description of the Related Art In recent years, many high-rise buildings have been built, and the number of high-rise buildings with a relatively large span has also increased. In such a high-rise building with a large span, the vertical displacement of the structure during an earthquake is very large.

For example, (1) to (5) of FIG. 8 show typical frame vibration modes at the time of an earthquake of a high-rise building 20 having a span of 28 m, and the structure vertically vibrates vertically. You can see that However, even with such a large vertical vibration, the displacement amount between the beams 21 has a wide range, the inter-beam displacement amount is relatively small in the middle layer portion 22, and the inter-beam displacement amount is high in the other high layer portions 23 and the lower layer portion 24. It is getting bigger.

Also, these high-rise buildings 20 are shown in FIG.
As shown in Figure 2, the curtain wall 2 is generally used as the outer wall.
5 is used, which is joined to the beam 21 by a fixed fastener.

[0005]

However, the high-rise building having a large span as described above has a large vertical displacement of the structure at the time of an earthquake and a large amount of mutual displacement of the beams. All curtain walls used as are attached to the structure with fixed fasteners. Therefore, the curtain wall had a structure that could hardly follow the vertical displacement of the structure during an earthquake.

The present invention has been made in view of such problems, and an object thereof is to provide a building structure provided with a curtain wall capable of following the vertical displacement of the structure during an earthquake.

[0007]

[Means for Solving the Problems] Means for solving the above-mentioned problems are as follows: In a high-rise building with a large span, the structure of the middle-story part in which the beams in the middle-story part are connected vertically by joint columns The curtain wall is attached to the structure, and the curtain wall is vertically movably attached to the structure of the upper layer through the pillars erected on the beams on the uppermost floor of the structure of the middle layer, and the lowermost floor of the structure of the middle layer. The curtain wall is vertically movably attached to the structure of the lower layer through a column hung on the beam of, and the curtain wall of the upper layer and the curtain wall of the lower layer are:
It is assumed that a slide fastener having a long bolt insertion hole in the vertical direction is provided, and the curtain wall of the upper layer portion and the curtain wall of the lower layer portion are slide fasteners having a long bolt insertion hole in the vertical direction. It is assumed that projections are provided on the edge of the bolt insertion hole at appropriate intervals.

[0008]

DETAILED DESCRIPTION OF THE INVENTION An embodiment of the present invention will be described in detail below with reference to the drawings. 1 is a front view of the building structure before the curtain wall is attached, FIG. 2 is a sectional view of the building structure with the curtain wall attached, FIG. 3 is a sectional view of the portion where the curtain wall is attached in the middle layer, and FIG. 4 is a slide. FIG. 5 is a perspective view of the fastener, and FIG. 5 is a front view of the same.

The building structure 1 shown in FIG. 1 has a span of 28 m.
This is a 19-story building of the middle floor 2 from the 4th floor to the 15th floor where the relative vertical vibration is relatively small at the time of the earthquake, and the 15th floor to the R floor where the relative vertical vibration is relatively large. It is divided into an upper layer portion 3 and a lower layer portion 4 from the third floor to the first floor in which relative vertical vibration is relatively large similarly to the upper layer portion 3.

In the middle layer portion 2, the beam 5 on the wall side is integrally joined vertically with two joint columns 6 so that they vibrate simultaneously and in the same direction during an earthquake. This middle layer 2
The curtain wall 7 is fixed to each floor slab 9 with a fixing fastener 10 and has the same behavior as the structure.

The uppermost floor of the middle layer 2, that is, 1
On the beam 9a on the fifth floor, upper-layer studs 13 extending to the R floor are erected at appropriate intervals in the lateral direction, and recessed grooves 14 through which the studs 13 pass are formed in the floor slab 9 on each floor.

On the other hand, the beam 5 on the 4th floor, which is the bottom floor of the middle layer 2
Lower studs 15 extending to the second floor are vertically provided at a at a suitable interval in the lateral direction, and concave grooves 14 through which the studs 15 pass are formed in the floor slab 9 on each floor in the same manner as described above.

A curtain wall is attached to the studs 13 and 15 with a fixing fastener 10 so that an upper layer curtain wall 16 is integrated, and a lower layer curtain wall 17 is also integrated.

By joining the studs 13 and 15 to the floor slab 9 with the slide fasteners 8, the curtain wall 16 in the upper layer portion and the curtain wall 17 in the lower layer portion behave as a unit. There is.

The slide fastener 8 is provided with elongated bolt insertion holes 12 at the top and bottom, and mounting bolts 11 are inserted and fixed in the bolt insertion holes 12.

Therefore, when the structure 1a vertically vibrates due to an earthquake, the mounting bolt 11 moves up and down in the bolt insertion hole 12 and the curtain wall 16 in the upper layer and the curtain wall 17 in the lower layer move up and down. There is.

Therefore, when the structure vertically vibrates due to an earthquake, the curtain wall 16 in the upper layer and the curtain wall 17 in the lower layer behave as a unit together with the vertical vibration of the structure in the middle layer. And, it behaves differently from the structure of the lower layer.

Although a 19-story building having a span of 28 m has been described in this embodiment, the length of the span and the height of the building are not limited to this.

FIG. 7 shows another embodiment of the slide fastener 8, in which protrusions 12a are formed on the edge of the bolt insertion hole 12 at appropriate intervals, and where the protrusions 12a face each other. The width is slightly smaller than the diameter of the mounting bolt 11.

The projection 12a works to lock the mounting bolt 11 to fix the curtain wall 7, but when the structure 1a vertically vibrates due to an earthquake, the mounting bolt 11 moves while crushing the projection 12a. This allows the curtain wall to move up and down.

[0021]

Since the beams in the middle layer portion are integrally connected by the joint columns, the structures in the middle layer portion can be simultaneously vibrated in the same direction, and the displacement amount can be suppressed small.

Since the curtain wall is attached to the integrated structure of the middle layer, the curtain wall integrally follows with the vertical vibration of the structure.

The curtain wall of the upper layer is vertically movably attached to the structure of the upper layer through the pillars erected on the beams on the uppermost floor in the middle layer, and the curtain wall of the lower layer is the curtain wall of the intermediate layer. The curtain wall of the upper layer and the curtain wall of the lower layer are attached to the structure of the lower layer so that they can be moved up and down through the pillars hung on the beams on the lower floor, and the structure of the upper layer and the structure of the lower layer. Since it can be made to act together with the structure of the middle layer separately from the body, the amount of displacement can also be kept small.

Since the curtain wall is fixed by the slide fastener, even if the structure vibrates vertically due to an earthquake, the curtain wall can be moved along with the behavior of the structure.

When the curtain wall is fixed by the protrusion of the bolt insertion hole in the slide fastener and the structure vibrates vertically due to an earthquake, the mounting bolt of the curtain wall moves while crushing the protrusion to move the curtain wall up and down. As a result, vibration energy can be absorbed.

[Brief description of drawings]

FIG. 1 is a front view of a building structure before a curtain wall is attached.

FIG. 2 is a cross-sectional view of a building structure to which a curtain wall is attached.

FIG. 3 is a cross-sectional view of a curtain wall attachment portion in the middle layer portion.

FIG. 4 is a perspective view of a slide fastener.

FIG. 5 is a front view of a slide fastener.

FIG. 6 is a cross-sectional view of a mounting portion of the curtain wall in the upper layer portion or the lower layer portion.

FIG. 7 is a front view of a slide fastener.

FIG. 8 is a diagram showing a vertical vibration mode.

FIG. 9 is a cross-sectional view of a conventional building structure.

[Explanation of symbols]

 1 Building structure 2 Middle layer 3 Upper layer 4 Lower layer 5 Beam 6 Joint pillar 7 Curtain wall of middle layer 8 Slide fastener 9 Floor slab 10 Fixing fastener 11 Mounting bolt 12 Bolt insertion hole 12a Projection 16 Curtain wall 17 of upper layer Lower layer Curtain wall

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshiaki Kobe 2-2 Kita-jo 3 East, Chuo-ku, Sapporo, Hokkaido Inside Toda Construction Co., Ltd. Sapporo Branch (72) Inventor Kunio Sawaguchi Kita-san 3 East, Chuo-ku, Sapporo, Hokkaido 2-2 Toda Construction Co., Ltd. Sapporo Branch (72) Inventor Kenichi Wada 2-3 Kita-jo East, Chuo-ku, Sapporo-shi, Hokkaido 2-2 Toda Construction Co., Ltd. Sapporo Branch (72) Inventor Shoji Niki Nakamaruko, Nakahara-ku, Kawasaki-shi, Kanagawa Address 135 Fuji Sash Co., Ltd.

Claims (3)

[Claims] 1. In a high-rise building having a large span, a curtain wall is attached to a structure of the middle-layer portion, in which beams in the middle-layer portion are vertically connected by joint columns to be integrated.
The curtain wall is vertically movably attached to the structure of the upper layer through the pillar erected on the beam of the uppermost floor in the structure of the middle layer, and the column is hung on the beam of the lowermost floor in the middle layer. A building structure in which a curtain wall is vertically movably attached to the structure of the lower layer through. 2. The building structure according to claim 1, wherein the curtain wall of the upper layer portion and the curtain wall of the lower layer portion each include a slide fastener having a vertically long bolt insertion hole. . 3. The upper-layer curtain wall and the lower-layer curtain wall each include a slide fastener having a longitudinally long bolt insertion hole, and projections are provided at appropriate intervals on the edge of the bolt insertion hole. The building structure according to claim 1, wherein the building structure is provided.