JP2003328477A - Connection structure of rib glass screen - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connection structure of a glass screen superior in earthquake resistance and wind pressure resistance by a rib glass plate. <P>SOLUTION: In a glass screen method wherein a rib glass is provided orthogonal to the vertical side of a planar plate glass on one side or both sides of a butt part of a plurality of the planar plate glasses erected as an external wall and the planar plate glass and rib glass are supported with an upper frame and a lower frame, an elastic modulus of an elastic sealing material in the neighborhood of the upper and lower parts of the vertical side of the rib glass as a sealing material between the planar plate glass and the rib glass is relatively small than that in the neighborhood of the central part. <P>COPYRIGHT: (C)2004,JPO

Description

Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to an earthquake-resistant structure for a glass screen formed by a rib glass method. 2. Description of the Related Art Among glass screen methods for forming a large opening using a large plate glass as an outer wall of a building, a glass stabilizer method and a hanging stabilizer method are often used as a method using rib glass (glass cubic). Are known. The glass stabilizer method is also called a self-supporting method with a glass cubic, and uses rib glass (also referred to as a cubic glass or a glass stabilizer) to support the deflection caused by the weight of the face glass and the wind load applied to the face glass. The hanging stabilizer method is a method of suspending the upper side of the glass plate and using a rib glass to prevent bending of the glass plate due to its own weight, and is used when the height of the glass plate at the opening is high. It is. [0004] As a configuration of the rib glass of the above-mentioned method, the vertical sides of a plurality of face plate glasses to be erected are abutted, and the rib glass is erected on the indoor side or the outdoor side at right angles to the abutting portion, and the abutting between the glass plates is performed. A single rib method in which joints are filled with a structural sealing material, or rib glass is erected on both the indoor side and the outdoor side at right angles to abutting portions of the vertical sides of a plurality of face glass sheets to be erected, and each glass is erected. A double rib method in which the joints between the plates are filled with a structural sealing material, and a plurality of face plates are penetrated through the joints where the longitudinal sides of the plates meet, so that the inside and outside of the room are perpendicular to the face glass. Three types of through-rib construction method in which one piece of rib glass is erected on both sides of the slab, and the joint of the gap between the face glass and the rib glass is filled with a structural sealing material. Has been used in the past, and the abutting portion between the face glass and rib glass is sealed with a high modulus elastic sealing material, and the seal between the glass sheet such as face glass and rib glass and the upper frame is low modulus elastic sealing. Lumber was used. [0005] In any of the methods using rib glass, when interlayer displacement occurs due to an earthquake or the like, the upper frame is connected to the structure and moves. As shown in), the rib glass is forcibly tilted, whereas the face glass uses a low modulus sealing material as a sealing material with the upper frame, so the deformation of the sealing material causes the face glass to lock. In some cases, the rib glass may be damaged due to the S-shaped deformation of the rib glass in the out-of-plane direction,
In order to lock the face glass so as not to damage the rib glass, the reaction force generated in the sealing material between the upper frame and the face glass must overcome the repulsive force of the sealing material between the rib glass and the face glass. According to the present invention, a rib glass reliably receives positive and negative wind loads on a face glass,
It is an object of the present invention to lock the face glass together with the deformation of the rib glass when the interlayer glass is subjected to interlayer displacement due to an earthquake or the like, thereby preventing breakage due to the deformation of the rib glass. That is, according to the present invention, a rib glass is provided at one or both sides of abutting portions of a plurality of face glass sheets erected as an outer wall at right angles to a vertical side of the face glass sheet, and the face glass and the rib glass are supported by an upper frame and a lower frame. In the glass screen method, the elastic modulus of the elastic sealing material near the upper and lower portions of the vertical side of the rib glass as a sealing material between the face plate glass and the rib glass is set to be relatively smaller than that near the center. It is a rib glass screen connection structure. DETAILED DESCRIPTION OF THE INVENTION The present invention is directed to a face glass and a face glass in which a large-area face glass is suspended or fitted into an upper frame, the lower side is supported by a lower frame, and a rib glass is further erected. The butt portion, and a rib glass is erected on one side or both sides at right angles to the face glass, filled with a structural sealing material between the vertical side butted side of the face glass and the rib glass vertical side, the upper frame and the lower frame The sealing material filled between the face glass and the rib glass was filled with a sealing material having a higher elastic modulus than the sealing material at the abutting portion between the rib glass and the face glass, and was bonded. That is, the face glass and the upper frame or the lower frame are filled with a high modulus elastic sealing material, and the abutting portion between the rib glass and the face glass is filled with a medium modulus sealing material. The upper frame moves in the direction parallel to the face of the face glass,
The rib glass is forcibly inclined to the right and left in an S-shape by the upper frame of the rib glass, but the sealing material between the face glass and the upper frame is made of a harder material than the rib glass seal, so the displacement of the upper frame is accompanied by the displacement movement of the upper frame. The upper side of the face glass also moves, and the face glass is locked, and the rib glass does not deform in an S shape, so that the rib glass does not break. Next, as a sealing material between the face glass and the rib glass, a middle modulus elastic sealing material is provided near the upper and lower portions of the longitudinal side of the rib glass, a high modulus elastic sealing material is provided near the central portion thereof, or a vertical portion of the rib glass is provided. The elastic modulus of the elastic sealing material near the upper and lower parts of the vertical side, such as the lower modulus elastic sealing material near the upper and lower parts of the side and the middle modulus elastic sealing material near the central part, It was made relatively smaller than that. This is because when the upper frame moves in a direction parallel to the surface of the face glass due to interlayer displacement due to an earthquake or the like, the rib glass is forcibly moved out of the plane by the upper frame of the rib glass.
However, the upper and lower parts of the butted part of the rib glass and the face glass were made softer than the center part, so the rib glass was forcibly moved as the upper frame of the rib glass moved. If the S-shaped deformation of the rib glass caused by insufficient inclination of the face glass and the locking of the face glass is made lower in the vicinity of the upper and lower parts of the rib glass seal than in the vicinity of the central part, the sealing material is elongated. The rib glass is not severely deformed, and the rib glass is not damaged. Alternatively, a projection member for forcibly locking the face glass is fixedly connected to the upper frame at the lower end of the upper frame supporting the upper side of the face glass and at the upper end of the abutment between the face glasses. Regardless of the state, when the upper frame moves in the direction parallel to the surface of the face glass due to interlayer displacement due to an earthquake or the like, the projecting member connected and fixed to the upper frame forcibly transmits external force to the upper side of the face glass, Locking of the glass is likely to occur, and the deviation of the movement from the rib glass that is forcibly tilted by the upper frame of the rib glass is reduced, so that it is easy to follow the interlayer displacement. When the rib glass is a laminated glass, the strength of the rib glass is increased, and when the thickness of the rib glass is further increased, the margin between the rib glass and the vertical edge of the face plate glass is increased. In addition, the rib glass can reliably receive both positive and negative wind loads. The seismic isolation structure of a rib glass screen according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a cross-sectional view of a ribbed glass screen according to an embodiment of the present invention, in which a part of a seismic isolation structure is omitted, and FIG. FIG. 2B is a schematic front view illustrating the balance and locking of the face glass. FIG. 2B is a schematic front view illustrating a state in which the locking of the face glass is small and the rib glass is deformed into an S shape when interlayer displacement occurs. 3 and 4 show perspective views of a ribbed glass screen for explaining another embodiment of the present invention, in which a part of a seismic isolation structure of a rib glass screen is partially omitted, and FIG. 5 shows interlayer displacement according to still another embodiment of the present invention. FIG. 6 is a schematic front view in which a part of the seismic isolation structure of a rib glass screen in which a part of a seismic isolation structure of a rib glass screen is cut away is omitted. Shown, FIG. 7 (a), (b)
2A and 2B are schematic front views of the glass plate before and after the occurrence of interlayer displacement, which are partially cut away and omitted, respectively, by the conventional rib method. As shown in FIG. 1, a plurality of face glass 1 serving as an opening of a building are erected in parallel, and a rib glass 2 is placed on one side or in a direction perpendicular to the face glass 1 at the abutting portion of the face glass 1. It was set up on both sides (not shown). The face glass 1 and the rib glass 2 are supported and fixed in a lower frame 4 and an upper frame 3 connected to a structural body (not shown), respectively. As an embodiment of the present invention, as shown in FIG. 1, the upper frame 3 or the lower frame 4 and the upper frame seal 6 and the lower frame seal 8 of the face plate glass 1 are made of a low modulus silicone sealing material of a conventional method. In place of the elastic sealing material, a silicone-based sealing material having a high modulus of elasticity is used. Further, a high modulus silicone is used as a rib glass seal 7 at the butting portion between the vertical sides of the face glass 1 and at the butting portion between the rib glass 2 and the face glass 1. Instead of the system sealing material, a medium modulus silicone sealing material having an elastic coefficient smaller than that of the upper frame seal 6 and the lower frame seal 8 was used. By making this rib glass seal 7 smaller in elastic modulus than the upper frame seal 6 and the lower frame seal 8, as shown in FIG. 2 and FIG. When the upper frame 3 moves in a parallel direction, the rib glass 2 is forced to tilt by the upper frame 3 and the lower frame of the rib glass 2 moving in opposite directions. Since the upper frame seal is made of a material harder than the rib glass seal 7, the upper or lower side of the face glass is moved by being dragged by the movement of the upper frame or the lower frame. 6. The reaction force generated in 6 overcomes the repulsion of the rib glass seal 7 of the glass rib 2, so that the locking 10 of about 1/100 to 1/150 is easy. Corruption will Ribugarasu 3 can be prevented. Next, another embodiment of the present invention will be described. As shown in FIGS. 3 and 4, as the structural sealing material, for example, about 1/8 to about 1/5 of the upper side and about 1/8 to about 1 / The vicinity of 5 was made a low modulus or middle modulus elastic sealing material, and the remaining central portion was made a middle modulus or high modulus elastic sealing material. That is, the upper and lower elastic sealing materials are soft sealing materials having a relatively smaller elastic coefficient than the central elastic sealing material. This is because when the upper frame moves parallel to the surface of the face glass 1 due to interlayer displacement due to an earthquake or the like, the rib glass 2
When the rocking of the face glass is insufficient, the structural sealing material of the abutting portion between the rib glass 2 and the face glass 1 is generated by the upper frame 3 of the rib glass 2. As shown in FIG. 2B, the upper and lower portions of the rib glass 2 are displaced in an S-shape as shown in FIG. On the other hand, since the rib glass seal 7 needs to withstand positive and negative wind pressure loads, it is desirable that the rib glass seal be high. Therefore, when the upper and lower portions of the rib glass seal 7 have low modulus, the rib glass seal 7 'in the center portion is used. Is a middle modulus sealing material, and when the upper and lower portions have a middle modulus, the central portion of the rib glass seal 7 'is a high modulus sealing material. The locking of the face glass 1 is insufficient with respect to the rib glass 2 forcibly deformed by the interlayer displacement as described above, and even if the vicinity of the upper portion and the lower portion of the abutting portion between the rib glass 2 and the face glass 1 is largely shifted, By making the upper and lower portions of the rib glass seal 7 lower and softer than the central portion, the sealing material 7 is stretched and deformed, and the rib glass 1 is prevented from being excessively deformed into an S-shape, thereby preventing the rib glass 2 from being damaged. be able to. Next, as still another embodiment of the present invention,
As shown in FIGS. 5 and 6, hard chloroprene having a hardness of about 80 to 90 degrees is provided at the lower end of the upper frame 3 that supports the upper side of the face glass 1 and at the upper end where the plurality of face glass 1, 1,. The protrusion member 5 made of rubber was fixedly connected to the upper frame. The protruding member 5 has such a size as to fit within the joint of the abutting portion between the face glass sheets 1, 1,..., And is covered with a rib glass seal 7 filled between the rib glass 2 and the face glass sheets 1, 1,. Regardless of the state of the sealing material such as the upper frame seal 6, the lower frame seal 8, the rib glass seal 7, etc., the upper frame 3 is moved in a direction parallel to the surface of the face glass 1 by interlayer displacement 9 due to an earthquake or the like as shown in FIG.
When the is moved, the projecting member 5 connected and fixed to the upper frame 3 forcibly transmits an external force due to interlayer displacement to the upper side of the face glass 1 to easily generate the locking 10 of the face glass 1 with the inclination of the rib glass, It is intended to reduce the deviation of the movement from the rib glass 2 and make it easier to follow the interlayer displacement 9, thereby eliminating breakage of the rib glass. If the rib glass 2 is made of laminated glass, the strength of the rib glass 2 is increased and the thickness of the rib glass 2 is also increased, so that the margin between the rib glass 2 and the vertical edge of the face plate glass 1 is increased, and the filled rib glass seal 7 is formed. With rib glass 2
Thus, both positive and negative wind loads can be reliably received. Although the preferred embodiment has been described above, the present invention is not limited to this, and various applications can be considered. The upper frame 3, the lower frame 4, and the rib glass seal 7 described as the embodiments of the present invention are described below.
Upper frame 3 and lower frame 4, face glass 1 and rib glass 2
High modulus sealing material as sealing material in between,
Conventionally, if a medium modulus sealing material having an elastic modulus smaller than that of the sealing material filled in the upper frame 3 or the lower frame 4 is filled and bonded as a sealing material at the abutting portion between the rib glass 2 and the face plate glass 1, The present invention can be applied to any of single ribs, double ribs, through ribs and the like in the construction method, and is not limited to the above-described embodiment. The rib glass seal 7 to be filled between the rib glass 2 and the face glass 1 is not limited to a silicone-based seal material, and a low modulus sealing material such as a polysulfide-based seal material can be used. The upper frame seal 6 filled between the upper frame 3 and the lower frame 4 and the lower frame seal 8 filled in the lower frame 4
Not only the silicone-based sealing material but also a medium-modulus sealing material such as an acetic acid-type silicone-based sealing material can be used. Further, as a sealing material between the face glass 1 and the rib glass 2 described as another embodiment of the present invention, a middle modulus elastic sealing material 7 near the upper and lower portions of the longitudinal side of the rib glass 2 and a vicinity of the central portion. A high modulus elastic sealing material 7 ′, or a low modulus elastic sealing material near the upper and lower portions of the vertical side of the rib glass, and a medium modulus elastic sealing material near the central portion. The sealing structure of the rib glass, in which the elastic modulus of the elastic sealing material near the bottom and the lower part is relatively smaller than that near the center, can be any of conventional ribs, single ribs, double ribs, through ribs, etc. The present invention is not limited to the above embodiment. The protruding member 5 fixedly connected to the upper frame described as still another embodiment of the present invention is not limited to the weather-resistant hard rubber such as the chloroprene rubber, but may be the surface of a metal member such as an aluminum material. And a hard resin such as polycarbonate may be used. The face plate glass 1 and the rib glass 2 are a raw plate glass, a semi-tempered glass, a tempered glass plate, a laminated glass plate in which the above glass plates are combined or bonded with PVB or EVA or a resin is injected, or a multi-layer glass plate. Or a glass plate with an anti-scattering film attached thereto. Further, the glass plate may be a glass plate on which a decorative pattern, pattern, or the like is printed, painted, or coated. According to the present invention, when interlayer displacement occurs due to an earthquake or the like and the upper frame moves in a direction parallel to the surface of the face glass, the upper frame seal, lower frame seal,
A simple configuration that only uses an elastic sealing material such as a rib glass seal, or a forcible inclination is generated with respect to the face glass by a projection member connected and fixed to the upper frame,
When the interlayer displacement occurs, only the rib glass is not forcibly tilted by the upper frame of the rib glass, and it is easy to follow the interlayer displacement even for the face glass. If the rib glass is made of laminated glass, the positive and negative wind pressures received by the face glass can be reliably received by the rib glass and the structural sealing material.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view in which a part of an earthquake-resistant structure of a glass plate by a rib glass method according to an embodiment of the present invention is partially omitted. FIG. 2 is a schematic front view illustrating (a) balance of seal reaction force and locking of face glass when interlayer displacement occurs. (B) A schematic front view illustrating a state in which the locking of the face glass is small when the interlayer displacement occurs and the rib glass is deformed in an S-shape. FIG. 3 is a perspective view illustrating another embodiment of the present invention, in which a part of a seismic isolation structure of a rib glass screen is partially omitted. FIG. 4 is a perspective view of a rib glass screen according to another embodiment of the present invention, in which a part of a seismic isolation structure of a rib glass screen is partially omitted. FIG. 5 is a schematic front view, partially cut away, illustrating a state of glass when interlayer displacement occurs according to another embodiment of the present invention. 6 is an enlarged cross-sectional view of a portion of the seismic isolation structure of the rib glass screen, in which a portion A of FIG. FIGS. 7 (a) and 7 (b) are schematic front views in which a part of a glass plate before and after occurrence of interlayer displacement is partially cut away by a conventional rib construction method. [Description of Signs] 1 face plate glass 2 rib glass 3 upper frame 4 lower frame 5 projecting member 6 upper frame seal 7, 7 'rib glass seal 8 lower frame seal 9 interlayer displacement 10 rocking

Continuation of front page    (72) Inventor Teruo Yokota             1-4-4 Koraku 27 Bunkyo-ku, Tokyo Stock Exchange             In company Nikken Sekkei (72) Inventor Hiroshi Kawagishi             1-25-1, Nishi Shinjuku, Shinjuku-ku, Tokyo Taisei             Construction Co., Ltd. (72) Inventor Toshihiro Suzuki             3-7-1, Kandanishikicho, Chiyoda-ku, Tokyo             Central Glass Co., Ltd. F-term (reference) 2E016 AA05 BA06 CA01 CB01 CC01

Claims (1)

Claims: 1. A rib glass is provided on one or both sides of a butt portion of a plurality of face sheet glasses erected as an outer wall, at right angles to a vertical side of the face sheet glass, and the face sheet glass and the rib glass are divided into an upper frame and a lower frame. In the glass screen method supported by the above, the elastic modulus of the elastic sealing material near the upper and lower portions of the vertical side of the rib glass as a sealing material between the face glass and the rib glass was made relatively smaller than that near the center. A rib glass screen connection structure.