Glass facade construction method using ribbed glass

Abstract

To provide a glass facade construction method using rib glass which is safe from the viewpoint of accuracy and quality control and can cope with the thin thickness of the rib glass even when the width of a sealing material is increased in order to improve resistance to wind pressure.SOLUTION: A glass facade construction method using a rib glass 6 according to the present invention is for installing a glass facade 1 including a face glass 2 forming a wall surface of a building, a metal connecting hardware 4, a rib glass 6 arranged perpendicularly to the face glass 2, and a seal base material 7 for bonding the rib glass 6 and the connecting hardware 4. The construction method includes a preparatory step of forming a rib glass unit 15 by attaching a first plate 9 to the side surface of the rib glass 6 via the seal base material 7 at a place other than the construction site, and an on-site step of fitting a second plate 10 to the first plate 9 at the construction site and attaching the face glass 2 to the rib glass unit 15 via the second plate 10 and a seal material 5.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a glass facade construction method using ribbed glass when attaching face glass to ribbed glass to construct a glass facade. [Background technology]

[0002] Buildings using glass as the exterior walls are known (see, for example, Patent Document 1). Patent Document 1 shows the so-called SSG construction method, in which face glass that forms the exterior wall is attached to mullions that form the building skeleton.

[0003] On the other hand, there are also cases where glass is used for the mullions. In this case, the glass that supports the face glass is called ribbed glass. When ribbed glass is used, it is often applied to relatively prominent locations on the building (such as the entrance), and the face glass and ribbed glass together are also called a glass facade. Therefore, the method of constructing this glass facade is called the glass facade method (sometimes called the ribbed glass method).

[0004] When constructing such a glass facade, a rib glass is placed between two adjacent face glass panels, and the rib glass panels are adhered to each face glass panel with a sealant made of a silicone-based adhesive material. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2018-25019 Summary of the Invention [Problem to be solved by the invention]

[0006] However, because ribbed glass needs to be glued to two adjacent face glass panels, the on-site gluing process is time-consuming and tedious. In particular, it is desirable to minimize on-site gluing work in terms of precision and quality control.

[0007] Furthermore, in recent years, there has been an increasing demand for wind pressure resistance, and the width of the sealing material used for face glass has also increased. This has resulted in the need to make the ribbed glass thicker, which requires using thicker glass, which is costly, or to laminate the ribbed glass to ensure the required thickness. This has led to an increase in the weight of the ribbed glass, which has led to a decrease in workability and an increase in costs.

[0008] The present invention has been made in consideration of the above-mentioned conventional technology, and aims to provide a glass facade construction method using ribbed glass that is reliable in terms of accuracy and quality control, and that can accommodate an increase in the width of the sealing material to improve wind pressure resistance by keeping the thickness of the ribbed glass thin. [Means for solving the problem]

[0009] In order to achieve the above-mentioned object, the present invention provides a glass facade construction method using ribbed glass for constructing a glass facade comprising face glass that forms the wall surface of a building, joint material arranged between adjacent face glass panes, metal connecting hardware that is arranged on the indoor side of the joint material and is formed by fitting a first plate and a second plate together, sealing material that adheres the connecting hardware to each of the adjacent face glass panes, ribbed glass that is arranged on the indoor side of the connecting hardware and perpendicular to the face glass panes, and a sealing base material that adheres the ribbed glass to the connecting hardware, characterized in that the glass facade construction method using ribbed glass comprises: a preparatory step of attaching the first plate to the side of the ribbed glass via the sealing base material at a location separate from the construction site to form a ribbed glass unit; and an on-site step of fitting the second plate to the first plate at the construction site and attaching the face glass to the ribbed glass unit via the second plate and the sealing material.

[0010] Preferably, the glass panel further has a seal width defined as the width between the seal materials adhered to the adjacent face glasses, and the width of the seal base material is shorter than the seal width.

[0011] Preferably, the connecting metal member is capable of swinging up and down and left and right in response to the swinging of the sealing material.

[0012] Preferably, the preparation step further comprises attaching the second plate to the face glass via the sealing material. [Effects of the Invention]

[0013] According to the present invention, the sealing substrate can be attached to the side of the ribbed glass in a preparation process at a location other than the construction site, such as a factory with manufacturing facilities, so construction can be carried out with greater confidence in terms of installation accuracy and quality control compared to when workers attach the sealing substrate on site. In particular, quality control of the adhesive strength can be properly performed, increasing reliability. Furthermore, because the sealing substrate is attached to the ribbed glass in advance, on-site work steps can be reduced, allowing for faster construction.

[0014] Furthermore, since the width of the seal base material is shorter than the seal width, the thickness of the rib glass can remain thin even if the width of the seal material is increased to improve wind pressure resistance.

[0015] Furthermore, because the connecting hardware can swing up, down, left, and right, even if an earthquake or wind pressure causes the face glass to swing up, down, left, and right and this is transmitted, the connecting hardware absorbs this movement and the ribbed glass is not affected.

[0016] Furthermore, if the second plate is attached to the face glass via a sealing material during the preparation process, the amount of work required on-site can be further reduced, and work that is highly reliable in terms of quality can be provided. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a schematic cross-sectional view of a glass facade to be constructed by a glass facade construction method using ribbed glass according to the present invention. [Figure 2] 1 is a schematic perspective view of a glass facade to be constructed by a glass facade construction method using ribbed glass according to the present invention. FIG. [Figure 3] 1 is a flowchart of a glass facade construction method using ribbed glass according to the present invention. [Figure 4] 1 is a schematic cross-sectional view showing an example of a glass facade that can be obtained by applying the present invention. [Figure 5]1 is a schematic cross-sectional view showing an example of another glass facade that can be obtained by applying the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0018] First, with reference to Figures 1 and 2, the structure of a glass facade 1 to be constructed by the glass facade construction method using ribbed glass according to the present invention will be described. The glass facade 1 is used as the exterior wall of a building, constituting its wall surface. Face glass panels 2, each consisting of multiple glass plates, are arranged side by side as the wall surface. A joint material 3 made of an adhesive sealant is disposed between these face glass panels 2. A metal connecting hardware 4 is disposed on the interior side of the joint material 3, i.e., on the interior side of the face glass panels 2. This connecting hardware 4 is bonded to the face glass panels 2 on both the left and right sides via a sealant 5. That is, one connecting hardware 4 is bonded to each of the adjacent face glass panels 2 with the sealant 5. This connecting hardware 4 is formed by fitting a first plate 9 and a second plate 10 together. The first plate 9 and the second plate 10 are formed of metal plates.

[0019] A plate-shaped ribbed glass 6 is arranged on the interior side of the connecting hardware 4, perpendicular to the face glass 2. In the example shown in the figure, the ribbed glass 6 is formed of laminated glass, in which two glass plates are bonded together with an intermediate layer. However, the ribbed glass 6 is not limited to this type of laminated glass, and may be single-pane glass, double-glazed glass, or laminated glass in which three or more glass plates are bonded together. The ribbed glass 6 is then adhered to the connecting hardware 4 with a sealing substrate 7. Therefore, the face glass 2 is supported by the ribbed glass 6 via the sealing material 5, the connecting hardware 4, and the sealing substrate 7.

[0020] When constructing the glass facade 1 having the above-described structure on-site, the construction method is a glass facade construction method using ribbed glass according to the present invention, as described below. As shown in FIG. 3 , a preparation step (Step S1) is first performed. In this preparation step, a first plate 9 is attached to the side of the ribbed glass 6 via a sealing substrate 7 at a location separate from the construction site to form a ribbed glass unit 15. The construction site refers to the location where the glass facade 1 is constructed, i.e., an outdoor location. Because the sealing substrate 7 and the first plate 9 are attached to the side of the ribbed glass 6 at a separate location, such as a factory with indoor manufacturing facilities, the construction can be performed with greater confidence in terms of installation accuracy and quality control compared to when workers attach the sealing substrate 7 on-site. In particular, quality control of the adhesive strength can be appropriately performed, improving reliability. Furthermore, because the sealing substrate 7 is attached to the ribbed glass 6 in advance, on-site work steps can be reduced, allowing for faster construction. Although the sealing substrate 7 is an adhesive, it is made of a relatively hard material because its adhesive strength is subject to wind pressure.

[0021] The ribbed glass unit 15 thus formed is transported to the construction site, where the on-site process is carried out (Step S2). That is, in the present invention, the ribbed glass 6, to which the first plate 9 has been attached via the sealing substrate 7 in the preparation process, is transported to the construction site. In this on-site process, the face glass 2 is attached to the ribbed glass unit 15 at the construction site. Any order of construction may be used on-site, but for example, the second plate 10 is first attached to the first plate 9, and then the face glass is bonded via the sealing material 5. The face glass 2 is then lined up using the joint material 3, and the glass facade 1 is completed.

[0022] In addition, the preparation step may further include attaching the second plate to the face glass 2 via the sealant 5. In this way, by attaching the second plate to the face glass 2 via the sealant 5 in the preparation step, it is possible to further reduce the amount of work on site and provide work that is highly reliable in terms of quality.

[0023] In this case, if the seal width, defined as the distance between the sealant 5 bonded to adjacent face glass panes 2, is A, the width B of the sealant substrate 7 is shorter than the seal width A. In recent years, wind pressure resistance has become a requirement, and to withstand this wind pressure, the seal width A must be increased. Increasing the seal width A is primarily achieved by increasing the width of the joint material 3. However, if the sealant 5 is directly bonded to the ribbed glass pane 6, the ribbed glass pane 6 must also be made to match the seal width A (i.e., the same length as the seal width A). However, because the glass facade 1 has connecting hardware 4 interposed between the sealant 5 and the ribbed glass pane 6, the width B of the sealant substrate 7 bonded to the connecting hardware 4 can be made shorter than the seal width A. Reducing the width B of the sealant substrate 7 also means that the thickness of the ribbed glass pane 6 can be reduced. Therefore, even if the width of the sealant 5 is increased to improve wind pressure resistance, the thickness of the ribbed glass pane 6 can be kept thin. Reducing the thickness of the ribbed glass pane 6 also results in a lighter color for the glass itself, improving design.

[0024] The connecting hardware 4 can also swing vertically and horizontally in response to the swinging of the sealing material 5. As mentioned above, the connecting hardware 4 is composed of a first plate 9 and a second plate 10, which slide relative to each other to absorb swinging in the vertical and horizontal directions. Because the connecting hardware 4 can swing vertically and horizontally, even if the face glass 2 swings vertically and horizontally due to an earthquake or wind pressure and this swing is transmitted to the connecting hardware 4, the connecting hardware 4 absorbs this movement, preventing the rib glass 6 from being affected or breaking. In the example shown in Figure 1, a second plate 10 with a roughly C-shaped cross section is sandwiched between the first plate 9, which is made of two plates fixed together with bolts 8, from the left and right. Because there is a gap between the first plate 9 and the second plate 10, they can swing horizontally by moving across this gap. Furthermore, because they can move vertically (vertically) simply by sliding relative to each other, they can also swing vertically (rock). In particular, glass facades 1 using ribbed glass 6 often use vertically long ribbed glass 6, so the ability to absorb shaking in the vertical direction is a great advantage.

[0025] The glass facade construction method using ribbed glass according to the present invention makes it possible to construct a glass facade such as that shown in Figure 4. In this example, a metal piece 11 extends outward from the connecting hardware 4 and has a plate-shaped protective portion 12 extending in the left-right direction. This protective portion 12 covers the joints of the face glass 2, so the metal piece 11 functions as a sash. This structure eliminates the need for joint material 3, and the protective portion 12 absorbs wind. In this structure, a sealant 13 is placed between the face glass 2 and the protective portion 12. This sealant 13 is a weather seal that maintains watertightness and is made of a relatively soft material. The manufacturing process involves first fitting a second plate 10 into the ribbed glass unit 15, and then pressing and fitting the metal piece 11 with the face glass 2 into the second plate 10. Then, sealants 5 and 13 are placed. The example in Figure 4 shows a double-glazed face glass 2. The presence of the protective part 12, which also functions as a sash, improves the durability of the double-glazed glass against internal condensation. In particular, a warranty period of approximately 10 years can be obtained. The other configurations, actions, and effects are the same as those of the example in Figure 1.

[0026] Furthermore, by using the glass facade construction method using the ribbed glass of the present invention, it is possible to construct a glass facade as shown in Figure 5. In this example, double-glazed glass is used as the face glass 2, but wired glass is used for the inner glass. This allows it to function as a fire prevention device and can also provide 20 minutes of fire resistance. Applicable areas include: Spread of fireThis method can also be used in locations where vibrations may occur. In this example, the first plate 9 is rectangular and is covered by a second plate 10 with a C-shaped cross section. More specifically, a metal piece 11 covers the connecting hardware 4 consisting of the first plate 9 and the second plate 10. The first plate 9, the second plate 10, and the metal piece 11 are fastened together with screws 14, but because the screw holes are larger in diameter than the screws 14, even if the face glass 2 vibrates and is transmitted to the connecting hardware 4 via the metal piece 11, the screws 14 vibrate within the screw holes and absorb the vibrations, so the vibrations are not transmitted to the rib glass 6. The manufacturing method is the same as the example in Figure 4. [Explanation of symbols]

[0027] 1: Glass facade, 2: Face glass, 3: Joint material, 4: Connecting metal fittings, 5: Sealing material, 6: Ribbed glass, 7: Sealing base material, 8: Bolt, 9: First plate, 10: Second plate, 11: Metal piece, 12: Protective part, 13: Sealing material, 14: Screw, 15: Ribbed glass unit

Claims

1. The face glass that forms the building's wall, a joint material disposed between adjacent face glass panels; a metal connecting hardware that is disposed on the indoor side of the joint material and is formed by fitting a first plate body and a second plate body together; a sealant that bonds the connecting hardware to the adjacent face glass; A rib glass is arranged perpendicular to the face glass on the indoor side of the connecting metal fittings; A glass facade construction method using ribbed glass for constructing a glass facade comprising a seal base material that bonds the ribbed glass and the connecting metal fittings, a preparation step of attaching the first plate to a side surface of the ribbed glass via the sealing base material at a location separate from the construction site to form a ribbed glass unit; A glass facade construction method using ribbed glass, characterized by including an on-site process of fitting the second plate body to the first plate body at the construction site and attaching the face glass to the ribbed glass unit via the second plate body and the sealing material.

2. a seal width defined as a width between the seal materials bonded to adjacent face glasses; 2. A glass facade construction method using ribbed glass according to claim 1, wherein the width of the seal base material is shorter than the seal width.

3. 2. A glass facade construction method using ribbed glass according to claim 1, wherein the connecting metal fittings are capable of swinging up and down and left and right in accordance with the swinging of the sealing material.

4. 2. The glass facade construction method using ribbed glass according to claim 1, wherein the preparation step further comprises attaching the second plate to the face glass via the sealing material.

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