JP4975474B2 - Glass curtain wall construction method - Google Patents

Description

  The present invention relates to a glass panel unit, and more particularly to a glass panel unit for constructing a glass curtain wall of a building.

  As a construction method of the glass curtain wall that becomes the outer wall of the skyscraper, there is a unitize construction method that constructs the glass curtain wall by bringing the glass panel unit into a building made from a metal frame and installing it into the building. It has been adopted. This unitized construction method has an advantage that the construction period can be shortened as compared with a construction method in which a glass panel is incorporated in a metal frame in a building.

  That is, in the unitize construction method, the glass windows between the floors of the building are assembled at the factory as a single glass panel unit, and this is incorporated into the building frame to shorten the construction period. In addition, the weather tight between the glass panel units is not a wet seal that takes a long time to dry, but a dry seal is adopted for the purpose of shortening the construction period.

  The glass curtain wall with the future glass panel unit mainly composed of glass is required to have a design that draws the design of glass while taking advantage of the conventional unitized construction method.

  In order to construct a glass panel unit, a metal member is often used as a framework. In addition, a construction method using a glass plate instead of a metal member as a supporting member has conventionally existed. A typical example is the rib glass construction method. The rib glass construction method is a construction method using a glass plate in place of a metal vertical frame. Conventionally, a rib glass is assembled to a face glass and a sash or a curtain wall member in the field.

  On the other hand, since shortening the construction period is desired at the site, the glass curtain wall is unitized like a glass panel unit, and this glass panel unit tends to be enlarged.

  However, as described above, the curtain wall made of the glass panel unit has a drawback in that it does not have an appearance that is required by design or obstructs the view from the room because a metal frame is used. . In addition, since glass curtain walls are the face of buildings, improvement in design is desired, and the view is an important factor in the trend of building construction technology. Furthermore, when the framework is made of glass, the water-tight / air-tight structure that the framework of the glass panel structure should have and the deformation absorption mechanism for glass during an earthquake are major technical issues.

In Patent Document 1, glass is used as a member (stand) for supporting a unitized glass panel unit. This glass is first constructed on site (fixed to the building frame), and a glass panel unit is attached to this glass via a bracket. As described above, when the glass is installed alone as a vertical, it requires a construction technique that requires specific skill, and requires a longer construction time than a general unitized construction method using a metal vertical. Since the manufacturing stand (glass mullion, rib glass) has low rigidity in the thickness direction, it is easily deformed when the unit is attached, and it takes time and effort. Further, in the configuration of Patent Document 1, at least the horizontal frame of the unit is located in the middle part of the rib glass, and the view is hindered. In terms of safety, damage to the rib glass leads to the dropout of the unit, so it is necessary to consider a relatively large amount of risk countermeasures such as increasing the safety factor of the rib glass and preventing damage and secondary disasters.
Japanese Patent No. 3762656

  The present invention has been made in view of such circumstances. By constructing the framework of the glass panel unit for constructing the glass curtain wall with glass, the appearance design of the glass curtain wall is enhanced and at the same time the view from the room. An object of the present invention is to provide a glass panel unit, a glass curtain wall, and a method for constructing a glass curtain wall that can be made good, can be easily constructed without requiring rib glass to be attached to a support structure in advance, and are excellent in safety. To do.

The glass panel unit applied to the glass curtain wall construction method of the present invention is mainly intended for wind load on the rib glass holding portion provided at at least one end of the frame member mounted on two opposite sides of the glass plate. A rib glass that works structurally against the out-of-plane direction external force is provided along sides other than the two opposite sides of the glass plate. As a result, the framework of the glass panel unit that constructs the glass curtain wall is composed of rib glass, so that the appearance design of the glass curtain wall can be improved, and no frame material is required in the middle part of the rib glass. Is also good. Moreover, since rib glass is attached to the rib glass holding part provided in the frame material, it is not necessary to attach rib glass to the support structure in advance, and construction is easy. Moreover, since the breakage of the rib glass does not directly lead to the dropout of the unit, it is excellent in safety. In addition, you may provide a rib glass holding part in the both ends of a frame material.

Moreover, the glass panel unit applied to the construction method of the glass curtain wall of the present invention includes an end portion of the first frame member adjacent to the vision portion among the frame members of the spandrel portion, or an end portion of the first frame member. The rib glass that works structurally against the out-of-plane external force mainly for wind loads is attached to the rib glass holding part provided at the end of the second frame member connected to the part. It is provided along. Even if the vision part and spandrel part are large glass panel units made of different panel materials or glass plates, the glass panel unit frame that constructs the glass curtain wall is made of rib glass. Excellent appearance design and no frame material required in the middle of the rib glass, so the view from the room is good. Moreover, since rib glass is attached to the rib glass holding part provided in the frame material, it is not necessary to attach rib glass to the support structure in advance, and construction is easy. Moreover, since the breakage of the rib glass does not directly lead to the dropout of the unit, it is excellent in safety. In addition, you may provide a rib glass holding | maintenance part in the both ends of a 1st frame member.

Construction how the glass curtain wall of the present invention, the in order to achieve the object, glass panel unit glass plate and the frame member constituting a wall surface comprising a vision unit is pre-attached to the support structure are integrally assembled A rib glass holding portion is provided on at least one end of the frame member mounted on the two opposite sides of the glass plate, and the rib glass extends along the sides other than the two opposite sides of the glass plate. mounting the glass panel unit, in the longitudinal direction and / or construction methods for glass curtain wall constituting the wall surface adjacent laterally disposed, in advance Ribugarasu the Ribugarasu holder before Symbol glass panel unit is attachable structure by Then, transport the glass panel unit to the construction site of the glass curtain wall, It is characterized by mounting the glass panel unit to the support structure of the field.
The glass curtain wall construction method of the present invention is a glass panel in which a glass plate and a frame material constituting a wall surface including a vision part are assembled in advance and attached to a support structure in order to achieve the object. A spandrel portion, which is a unit and is configured by mounting a frame member around a panel material, is integrally provided adjacent to the vision portion, and is adjacent to the vision portion among the frame members of the spandrel portion A rib glass holding portion is provided at an end portion of the first frame member formed or at an end portion of the second frame member connected to the end portion of the first frame member, and along a predetermined side of the vision portion. A glass panel unit having a structure in which a rib glass can be attached by the rib glass holding portion is arranged in the vertical direction and / or the horizontal direction so as to be a wall. In the method for constructing the glass curtain wall, after the rib glass is attached in advance to the rib glass holding portion of the glass panel unit, the glass panel unit is transported to the construction site of the glass curtain wall, and the support structure of the construction site It is characterized by attaching a glass panel unit.

According to the present invention, at a glass panel unit manufacturing factory, rib glass is mounted in advance on the rib glass holding portion of the glass panel unit, and this glass panel unit is transported to the construction site of the glass curtain wall, and the support structure at the construction site Attach the glass panel unit. As a result, construction is easy and the construction period of the glass curtain wall can be shortened. Is not connected directly, so it is safe.

The present invention, after mounting the sucker provided on the glass surface before Symbol glass panel unit carrying or lifting duty jig, transported to the mounting position of the glass panel unit, the support structure of the glass panel unit It is characterized by being attached to.

According to the present invention, since the glass surface is attached to the suction cup and supported by suspension, a dedicated jig for suspension or reinforcement is unnecessary, which is preferable because construction is easy and the construction period of the glass curtain wall can be shortened.

  According to the glass panel unit according to the present invention, since the framework of the glass panel unit for constructing the glass curtain wall is constituted by the rib glass, the appearance design of the glass curtain wall can be improved, and a frame material is provided in the middle part of the rib glass. The view from the room is good as it is unnecessary. Moreover, it is unnecessary to attach the rib glass to the support structure in advance, and the construction is easy, and since the breakage of the rib glass does not directly lead to the dropping of the unit, it is excellent in safety.

  According to the glass curtain wall of the present invention, since adjacent glass panel units share one piece of rib glass, the number of rib glasses can be reduced, construction is easy, and a short construction period can be realized. In addition, the appearance design is improved and the view from the room is better.

  According to the construction method of the glass curtain wall according to the present invention, the rib glass is attached in advance to the rib glass holding portion of the glass panel unit, and the glass panel unit is transported to the construction site of the glass curtain wall to be a support structure at the construction site. Since the glass panel unit is installed, construction is easy and the construction period of the glass curtain wall can be shortened, and the appearance design of the glass curtain wall is enhanced by the rib glass, and the view from the room is improved, and the rib glass is damaged. However, it does not directly lead to the dropout of the unit.

  Further, according to another glass curtain wall construction method according to the present invention, after the glass panel unit is transported to the construction site and the glass panel unit is attached to the support structure at the construction site, the rib glass of this glass panel unit Since the rib glass is attached to the holding part, construction is easy and the work period of the glass curtain wall can be shortened, and the appearance design of the glass curtain wall is enhanced by the rib glass, and the view from the room can be improved. Since the damage does not directly lead to the dropout of the unit, it is excellent in safety.

  Hereinafter, preferred embodiments of a glass panel unit, a glass curtain wall, and a glass curtain wall construction method according to the present invention will be described with reference to the accompanying drawings.

  In the glass panel unit 10 shown in FIG. 1A, frame members 12 and 12 are formed of a sealing material or the like on the upper and lower sides of the rectangular glass plate G that constitutes a wall surface as a vision unit. It is a glass panel unit attached in advance. As shown in FIG. 2, rib glass holding portions 48, 48 are respectively provided at the right ends of the frame members 12, 12 on the upper and lower sides, and the rib glass holding portions 48, 48 are formed into elongated rib glasses. The glass panel unit 10 is configured by holding both end portions (upper and lower end portions) of the longitudinal direction of 14. The rib glass 14 has a structure that is retrofitted along the vertical side portion of the glass plate G. The rib glass 14 is fixed to the vertical side portion of the glass plate G by a sealing material, a bonding material, a frame material or the like (not shown). As shown in FIG. 3, the bonding material is a member for fixing the rib glass 14 to the joint portion of the vertical side portion of the two adjacent glass plates G and G. For example, the two adjacent glass plates G A pair of sandwiching members 54, 54 that are inserted into the joint portion of the vertical side portion of G and sandwich the vicinity of the two adjacent glass plates G, G, and the sandwiching members 54, 54 integrally. It is provided with fixing members 58 and 58 that are provided and sandwich the rib glass 14 and are fixed by bolts 56 to through holes (not shown) drilled in the rib glass 14. The clamping members 54 and 54 may be connected by a fixing tool such as a bolt, or may be integrally formed via a connecting member. Moreover, it is preferable to place a sealing material on the contact surface between the sandwiching members 54 and 54 and the glass plates G and G. In addition, as shown to FIG. 4 (A), (B), in the glass panel unit to which the frame materials 12 and 12 were previously attached to the vertical side part which is two sides which the glass plate G opposes, frame material 12, Rib glass holding portions 48 and 48 are provided at the upper end portion of the glass plate 12, and both end portions in the longitudinal direction of the long rib glass 14 (short sides of the rib glass 14) are held by these rib glass holding portions 48 and 48. What is necessary is just to comprise.

  On the other hand, the glass panel unit 20 of FIG. 1 (B) comprises a system comprising a spandrel part 16 and a vision part 18 (spandrel part covering the front surface such as slab, waist, and ceiling, and the front of the living room space. A glass panel unit of a type in which a vision part called a window part is clearly separated from the room, and has a rectangular glass plate (panel material) G1 of the spandrel part 16 and a rectangular part of the vision part 18. This is a glass panel unit in which a panel material is divided into a glass plate G2. Further, a frame material (frame member) 12 is attached to the four sides of the glass plate G1 of the spandrel portion 16, and a frame material 12 is attached to the lower side of the glass plate G2 of the vision portion 18 (spandrel portion 16 and vision). The frame member of the glass plate G1 and the frame material of the glass plate G2 are shared at the boundary with the portion 18, and one of them may be omitted apparently), and the frame material of the vertical side of the spandrel portion 16 The rib glass 14 is retrofitted along the vertical side portion of the glass plate G2 between the frame member 12 and the frame member 12 on the lower side portion of the vision portion 18. The rib glass 14 is also attached to a rib glass holding portion (described later in FIGS. 17 to 19) similarly to FIG. 2, and is fixed to the vertical side portion of the glass plate G2 by a sealing material, a bonding material, a frame material, etc. (not shown). The Both the glass panel units 10 and 20 are configured such that the rib glass 14 is accommodated between the frame members 12 and 12.

  That is, the glass panel units 10 and 20 in FIGS. 1A and 1B have a support structure in which the glass plate G (G2) and the frame member 12 constituting the wall surface including the vision portion 18 are assembled together in advance. The glass panel units 10 and 20 are attached to each other, and a rib glass holding portion 48 is provided on at least one end of the frame member 12 mounted on two opposing sides of the glass plate G (G2). The glass panel unit has a structure in which the rib glass 14 can be attached along the sides other than the two opposing sides. That is, the rib glass 14 may be provided in advance in the rib glass holding portion 48 provided in the glass panel units 10 and 20, or retrofitted to the rib glass holding portion 48 provided in the glass panel units 10 and 20. It may be. In short, the rib glass 14 should just be attached to the glass panel unit 10 and 20 of the last form attached to the support structure. Thereby, at least one side of the glass panel units 10 and 20 is provided with the rib glass 14 that works structurally, and the framework of the glass panel units 10 and 20 that constructs the glass curtain wall is constituted by the rib glass 14. The appearance design can be enhanced, and the frame material as in Patent Document 1 is not required in the middle portion of the rib glass 14 in the longitudinal direction, so that the view from the room is good. Moreover, since the rib glass 14 is attached to the rib glass holding part 48 provided in the frame member 12, it is not necessary to attach the rib glass 14 to the support structure in advance, the construction is easy, and the construction period can be shortened. Moreover, since the damage of the rib glass 14 does not directly lead to the dropout of the unit, it is excellent in safety.

  According to the horizontal sectional view of the glass curtain wall shown in FIG. 5, the frame members 12 and 12 are fixed along the vertical sides of the two adjacent glass panel units 10 and 10, and the vertical side of the glass panel G The peripheral portion of the frame is mounted in a groove provided in the frame member 12 via a cushioning material or a sealing material (not shown). A rubber or plastic rain barrier 22 and a wind barrier 23, which are dry seal materials, are fixed to predetermined faces on the opposing surfaces of the frame members 12 and 12, respectively. The rain barrier 22 and the wind barrier 23 are brought into contact with and in close contact with the opposing rain barrier 22 and the wind barrier 23 to construct a glass curtain wall. Here, a rain barrier means a sealing material for a rain barrier, and a wind barrier means a sealing material for a wind barrier. According to the glass curtain wall, the rain barrier 22 and the wind barrier 23 ensure water tightness and air tightness. In this example, adjacent glass panel units 10 and 10 are provided with a rib glass (not shown) along the frame member 12 fixed to the vertical side of the glass panel G shown in FIG. Same as example 6). Both end portions (upper and lower end portions) of the rib glass in the longitudinal direction are attached to rib glass holding portions (not shown) provided at one end of a frame member attached to upper and lower side portions which are two opposite sides of the glass plate G.

  For example, as shown in FIG. 6, a structure in which a rain barrier 22, a wind barrier 23, and a rib glass 14 are combined and the rib glass 14 is fixed to a glass plate G by a sealing material 24 along the frame material 12 can be exemplified. That is, the glass panel unit of FIG. 6 is provided with the rib glass 14 along the side of the glass plate G on which the frame member 12 is provided, and the peripheral portion of the vertical side of the glass panel G is formed of a buffer material (not shown) It is attached to the end surface of the frame member 12 via a sealing material. In this case, the metal frame member 12 is designed to have a minimum required size as a watertight / airtight mechanism, and ensures a good appearance design. Both end portions (upper and lower end portions) of the rib glass 14 in the longitudinal direction are rib glass holding portions (not shown) provided at one end of a frame member attached to upper and lower side portions which are two opposite sides of the glass plate G. It is attached.

  According to the embodiment of FIGS. 5 and 6, the rain barrier 22 and the wind barrier 23, which are dry sealing materials, are attached to the periphery of the glass panel unit 10 at the factory in advance, so that the workability at the site can be improved. In addition, the water-tightness and air-tightness of the glass curtain wall constructed by these glass panel units 10 can be ensured.

  In addition, since the thickness is comparatively large when the glass plate G is the multilayer glass shown in FIG. 7, the rain barrier 22 and the wind barrier 23 are directly attached along the periphery of the multilayer glass in advance. Can do. In FIG. 7, rib glass is provided (not shown) via a sealing material along the indoor side surface (the upper surface of the glass plate G in FIG. 7) at the periphery of the left and right vertical sides of the glass plate G. Both end portions (upper and lower end portions) of the rib glass in the longitudinal direction are attached to rib glass holding portions (not shown) provided at one end of a frame member attached to upper and lower side portions which are two opposite sides of the glass plate G.

  According to the horizontal sectional view of the glass curtain wall shown in FIG. 8, the interlocking structure locking member 26 is formed integrally with the frame member 12 of the glass panel unit 10, and the rubber-based weathertight material is formed on the locking member 26. The glass curtain wall is constructed by connecting adjacent glass panel units 10 and 10 by locking members 26 and 26. Thereby, the workability of the glass curtain wall is improved. Further, since the locking portions between the locking members 26 and 26 are sealed by the weathertight materials 28 and 28, the water tightness and airtightness of the glass curtain wall are ensured. In addition, the space formed by the locking member 26 and the weathertight material 28 can be used as an isobaric space with the outside air, and water tightness can be improved.

  Note that one of the two weathertight materials 28 and 28 shown in FIG. 8 may be attached to one frame member 12 and the other may be attached to the other frame member 12. Two weatherite materials 28, 28 may be attached and each may be brought into close contact during construction. In the glass panel unit 10 of FIG. 8, the peripheral edge of the vertical side of the glass plate G is mounted in a groove provided in the frame member 12 via a buffer material or a seal material (not shown). Further, the glass plate unit 10 of FIG. 8 also has rib glass via a sealing material along the indoor side surface (the upper surface of the glass plate G in FIG. 8) at the peripheral edges of the left and right vertical sides of the glass plate G. Provided (not shown). In this case, the rib glass is preferably provided so as to come into contact with the side surface of the frame member 12 shown in FIG. 8, and a sealing material or a buffer material is preferably interposed between the rib glass and the frame member 12. Both end portions (upper and lower end portions) of the rib glass in the longitudinal direction are attached to rib glass holding portions (not shown) provided at one end of a frame member attached to upper and lower side portions which are two opposite sides of the glass plate G.

  According to the horizontal cross-sectional view of the glass curtain wall shown in FIG. 9, the plate-shaped seal receiving member 30 is fixed along the vertical side portion to the vertical side portion that is the peripheral portion of the glass panel unit 10. This seal receiving member 30 is fixed in advance to both or either one of the vertical sides of the left and right glass panel units 10, 10 facing each other at the joint between the adjacent glass panel units 10, 10. When the glass curtain wall is constructed by arranging the glass panel units 10, 10... Adjacent to each other in the vertical direction and / or the horizontal direction, the seal receiving member 30 is located outside the building in the front-rear direction of the joint. In order to seal between the adjacent glass panel units 10, 10, a wet sealant 32 is applied from the inside of the building to the joint between the two units. The sealing material 32 may be constructed from the outside of the building. However, in the case of the unitized construction method, since there is no external scaffold, a gondola must be used when constructing from the outside, resulting in a long construction period. Therefore, it is preferable to construct the sealing material 32 from the inside of the building because a short construction period can be realized. Further, the seal receiving member 30 is a portion other than the portion where the rain barrier 22 and the wind barrier 23 of the glass panel unit 10 shown in FIGS. 5 and 6 are provided in the joint between the adjacent glass panel units 10 and 10. It is possible to provide in the location. Further, the seal receiving member 30 can be provided at a location where the frame member 12 of the glass panel unit 10 shown in FIG. 8 is not provided.

  According to the embodiment of FIG. 9, by attaching a seal receiving member 30 to the periphery of the glass panel unit 10, the sealing material 32 is placed on the indoor side (inside side) or the outdoor side (outside side) of the glass panel unit 10. It can construct from at least any one direction of, and can seal between the adjacent glass panel units 10 and 10. FIG. Moreover, since the sealing material 32 can implement | achieve a short construction period rather than constructing from the exterior of a building, it is preferable to provide the seal receiving member 30 in the position located in the exterior of a building. . In FIG. 9, the rib glass is omitted (not shown), but the rib glass is provided on the indoor side (inside side) of the glass panel unit 10 at the joint between the adjacent glass panel units 10 and 10, and the rib glass and the glass panel unit. 10 and 10 can be bonded to each other by a sealing material 32. Further, the rib glass and the glass panel unit 10 are different from the sealing material 32 in the same positional relationship as the rib glass 14 and the glass panel unit 10 in FIG. And may be adhered. In either case, both end portions (upper and lower end portions) of the rib glass in the longitudinal direction are rib glass holding portions (not shown) provided at one end of a frame member mounted on the upper and lower side portions which are two opposite sides of the glass plate G. ).

  The horizontal cross-sectional view of the glass curtain wall shown in FIGS. 10 and 11 shows a form in which adjacent glass panel units 10 and 10 share one rib glass 14.

  10 uses a seal receiving member 30 fixed along the vertical side portion of the glass panel unit 10 to construct a wet sealant 32 from the inside of the building. This is an example in which the rib glass 14 is fixed to the glass panel units 10 and 10 and the seal receiving member 30 along the joint portion.

  The form of FIG. 11 uses the rain barriers 22 and 22 fixed along the vertical side of the glass panel unit 10 as a seal receiving member, constructs the sealing material 32 from the inside of the building, the glass panel unit 10, In this example, the rib glass 14 is fixed to the glass panel units 10 and 10 and the rain barriers 22 and 22 along 10 vertical joints. Further, the rain barriers 22 and 22 are provided with a lip portion 21 for draining water at the abutting portions thereof to enhance water tightness.

  10 and 11, both end portions (upper and lower end portions) in the longitudinal direction of the rib glass 14 are attached to one end of a frame member attached to upper and lower side portions which are two opposite sides of the glass plate G. It is attached to the provided rib glass holding part (not shown). The rib glass holding portion is provided at one end of both or either one of the opposing left and right glass panel units 10 and 10 at the joint between adjacent glass panel units 10 and 10.

  According to the example of the glass curtain wall in FIGS. 10 and 11, since one rib glass 14 is shared by the adjacent glass panel units 10 and 10, the number of rib glasses 14 can be reduced, construction is easy, and a short construction period is realized. In addition, the rib glass can enhance the appearance design of the glass curtain wall, and the view from the room can be improved, and the damage of the rib glass does not directly lead to the dropout of the unit.

  In addition, the form which makes the rib glass 14 common can be applied to the location where the rain barrier 22 and the wind barrier 23 of the glass panel unit 10 shown in FIG. 5 are not provided. Moreover, you may apply to the location in which the rain barrier 22 and the wind barrier 23 are provided. For example, a fixing plate is connected to each of the frame members 12, 12 shown in FIG. 5, and these fixing plates and one rib glass 14 are fixed with bolts or the like through through holes drilled in the rib glass 14. Fix with a jig. Thereby, the rib glass 14 can be made common in the location where the rain barrier 22 and the wind barrier 23 are provided. Similarly, it is possible to apply to the location where the frame material 12 of the glass panel unit 10 shown in FIG. Moreover, you may apply to the location in which the frame material 12 is provided. For example, a fixing plate is connected to each of the frame members 12 and 12 shown in FIG. 8, and these fixing plates and one rib glass 14 are fixed with bolts or the like through through holes drilled in the rib glass 14. Fix with a jig. Thereby, the rib glass 14 can be made common in the location where the frame member 12 is provided.

  On the other hand, as shown in FIG. 12, the glass panel unit 20 (see FIG. 1 (B)) in which the glass panel is divided into the spandrel part 16 and the vision part 18 has a frame member (see FIG. 1B). The frame member 12, 12, 12 is provided with a rain barrier 22 and a wind barrier 23 which are dry seal materials as shown in FIGS. 13 and 14. Thereby, in the spandrel part 16, watertightness and airtightness are ensured. And the adjacent glass panel units 20 and 20 are connected by applying the sealing material 32 which is a wet seal to the vertical side part of the vision part 18.

  The features of the dry seal (rain barrier 22 and wind barrier 23) and the wet seal (sealing material 32) will be described from the viewpoint of construction. The dry seal is mainly configured by attaching components to the unit at the factory. The wet seal is constructed by being constructed on site after the unit construction. In the case of Unitize, there is no external scaffold, so use a gondola when constructing from outside. The spandrel part 16 can be constructed only from the outdoor side (external side), and the vision part 18 can be constructed from the indoor side (inside side). Further, from the viewpoint of performance, if the dry seal has an isobaric construction method and a drainage mechanism, it can withstand long-term use, and the performance depends on design and manufacturing accuracy. Wet seals depend on seal performance and construction quality and generally require periodic changes. Further, from the viewpoint of design, since the dry seal is a complicated mechanism, the finding and the prospects are increased, whereas the wet seal has a simple and smart configuration. In view of the above, when the sealing material 32, which is a wet seal, is applied to the vision unit 18, the designability and the view securing are improved.

  Based on the characteristics of such a seal, as shown in FIGS. 13 and 14, by arranging a rubber or resin joint part 34 at the joint between the rain barrier 22 and the wind barrier 23 and the sealing material 32, Airtightness and watertightness of the spandrel part 16 are ensured. This joining component 34 can also be used as a spacer (guide, backer) of the sealing material 36 that is constructed from the indoor side in order to improve airtightness and watertightness. Further, as shown in FIGS. 13 and 14, the spandrel portion 16 is formed with an equal pressure air inlet (isostatic mechanism) 38 between the joining part 34 and the rain barrier 22 to ensure drainage. Reference numeral 40 in FIG. 14 denotes a rain barrier component that prevents rainwater from entering through the isobaric air inlet 38.

  On the other hand, in the glass panel unit 20 shown in FIGS. 13 and 14, the vertical side portion (a part of the framework) of the glass panel G2 of the vision unit 18 is glass, and a wet seal is applied to the joint portion between the units. In order to secure the water-tight / air-tight performance and the in-plane deformation absorption performance, which are the problems that arise, the following structure is presented.

  That is, as shown in FIG. 9, the sealing material 32 of the glass joint portion of the vision portion 18 (the butt portion of the glass panel unit 20) can be applied only from the indoor side in advance or at the time of sealing. A rubber or resin seal receiving member 30 is provided (not shown).

  Further, as shown in FIG. 11, a structure in which a lip portion 21 for draining water is formed on the outer side of the rain barrier 22 functioning as a seal receiving member to improve water tightness can be applied.

  Therefore, according to the embodiment of FIGS. 12 to 14, the rain barrier 22 and the wind barrier 23, which are dry sealing materials, are attached to the periphery of the glass panel unit 20. In the glass panel unit 20 in which the sealing material 32, which is a wet sealing material for sealing between a glass panel unit and an adjacent glass panel unit, is applied, a joining component 34 is provided at a joint between the dry sealing material and the wet seal. Therefore, the airtightness, watertightness, and drainage of the spandrel portion 16 that is the region sealed with the dry seal can be secured.

  Further, as shown in FIG. 15, in the glass panel unit 20 in which the glass panel is divided into the spandrel part 16 and the vision part 18, a locking member 26 is formed on the frame material 12 of the spandrel part 16, and the locking member 26. , 26 is provided with a weatherite material 28 at the engaging portion. Thereby, in the spandrel part 16, airtightness and watertightness are ensured. And the adjacent glass panel units 20 and 20 are connected by applying the sealing material 32 which is a wet seal to the vertical side part of the vision part 18. Further, the airtightness and drainage of the spandrel portion 16 are ensured by disposing the joining component 34 at the joining portion between the weathertight materials 28, 28 and the sealing material 32. The joining component 34 is also improved in airtightness and watertightness by the sealing material 36. Moreover, the construction of the sealing material is facilitated by constructing the sealing material 36 from the indoor side.

  According to the perspective view of the glass panel unit 20 in FIG. 16, the cover member (block-shaped member indicated by a two-dot chain line) 42 is at least a part of the joining component 34 so that a gap filled with the sealing material 36 is formed. In the state which covered, it is comprised with respect to the frame material 12 of the glass panel unit 20 so that attachment or detachment is possible via the latching part not shown. Thereby, since the cover member 42 is removed from the frame member 12 and seal construction and seal inspection are possible, the seal construction performance is improved and the seal inspection is facilitated. In particular, the boundary between the spandrel portion 16 and the vision portion 18 is a position close to a slab or beam of a building, and is a place where seal construction and seal inspection are difficult. Therefore, by making the cover member 42 located at the boundary between the spandrel part 16 and the vision part 18 detachable, the workability of the seal is further improved, and the seal inspection work can be performed more efficiently. In FIGS. 13 to 16, the seal receiving member 30 is omitted from the outside of the sealing material 32, but the seal receiving member 30 (rain barrier 22) is provided as in the examples of FIGS. 9 to 11. Is preferred.

  FIG. 17 shows an interior view of the glass panel unit 20 having the spandrel part 16 and the vision part 18. In the embodiment shown in the figure, a rib glass holding portion 48 is provided at an end of a frame material (first frame member) 12A adjacent to the vision portion 18 in the frame material 12 of the spandrel portion 16, and the vision portion 18 The rib glass 14 is attached by the rib glass holding part 48 along the vertical side (predetermined side), and the rib glass 14 is attached to each glass panel unit 20. Moreover, the step part 13A for fitting the prismatic rib glass holding | maintenance part 48 is formed in the edge part of 12 A of frame materials.

  In the embodiment shown in FIG. 18, the rib glass is held at the end of the frame 12B (second frame member) connected to the end of the frame 12A adjacent to the vision 18 in the frame 12 of the spandrel 16. A portion 48 is provided, and the rib glass 14 is attached by the rib glass holding portion 48 along the vertical side of the vision portion 18, and one rib glass 14 is shared by the adjacent glass panel units 20 and 20. It is. Moreover, the step part 13B for fitting the prismatic rib glass holding | maintenance part 48 is formed in the edge part of the frame material 12B. The rib glass holding portion 48 is configured to be detachable from the frame members 12B and 12B so that a gap filled with the sealing material 36 is formed, and also functions as the above-described cover member.

  In the embodiment shown in FIG. 19, the rib glass holding portion 48 is attached to the end of the frame member 12A adjacent to the vision portion 18 in the frame member 12 of the spandrel 16 and the end of the frame member 12B connected to the frame member 12A. The rib glass 14 is attached by the rib glass holding part 48 along the vertical side of the vision part 18, and one rib glass 14 is shared by the adjacent glass panel units 20, 20. . Further, step portions 13C for fitting the prismatic rib glass holding portions 48 are formed by the end portions of the frame members 12A and 12B. The rib glass holding portion 48 is configured to be detachable from the frame members 12A, 12A, 12B, and 12B so that a gap filled with the sealing material 36 is formed, and also functions as the above-described cover member. To do. Reference numeral 15 denotes a joining member that fixes the rib glass 14 to the joint portion of the vertical side portions of the two adjacent glass plates G2 and G2.

  Next, means for ensuring in-plane interlayer deformation absorption performance will be described.

  When the rib glass 14 is used as a vertical frame member that is a framework of the glass panel unit 10 (20), it is necessary to absorb an interlayer deformation angle during an earthquake and prevent the rib glass 14 from being damaged. The rib glass 14 can be prevented from being damaged by the clearance and absorption behavior inherent to the glass panel unit 10 (20), but the following measures are taken when the rib glass 14 may be damaged.

  First, as shown in FIG. 20, in the glass panel unit 10 in which the glass panel G and the rib glass 14 are bonded and bonded with a sealing material, the portions close to the fixing portions of the upper and lower ends (both ends in the longitudinal direction) of the rib glass 14 are low modulus. The seal or fixed rubber 44 is used. Thereby, the rib glass 14 is easily deformed with respect to the glass panel G, and the deformation of the rib glass 14 due to the in-plane interlayer displacement is moderated, and the stress generated in the rib glass 14 is reduced, thereby preventing the rib glass 14 from being damaged. Can do. The other sealing material is a high modulus seal 46.

  Next, in the embodiment of FIG. 21A, the rib glass holding portion 48 that holds the upper and lower end portions (only the lower portion is shown) of the rib glass 14 is separated from the frame member 12 of the glass panel unit 10, and FIG. As shown in (B), the rib glass holding portion 48 is structured to be movable at least in the horizontal direction (arrow A direction) with respect to the frame member 12 by a known movable structure, and the rib glass 14 is moved horizontally in the in-plane interlayer displacement. It is configured to move away. With such a configuration, deformation of the rib glass 14 can be suppressed, and the stress generated in the rib glass 14 is reduced, so that damage to the rib glass 14 can be prevented.

  Next, the embodiment of FIG. 22A shows an example in which the rib glass holding portion that receives the rib glass 14 is divided into two members 50 and 50 on the indoor side and the outdoor side. These members 50 and 50 are also attached to the frame member 12 so as to be movable at least in the horizontal direction (arrow A direction) as shown in FIG. When the holding member is divided into two in this way, the holding member can be slimmed, so that the design is improved, and the divided holding members can be displaced in different directions, so that the deformation absorbing function during an earthquake may be improved.

  In the embodiment of FIG. 23, an adhesive glass piece 52 for adhering the rib glass 14 to the frame member 12 with the sealing member 24 is fitted and held on the frame member 12. Due to the presence of the bonding glass piece 52, the adhesiveness of the rib glass 14 is improved as compared with the case where the rib glass 14 is directly bonded to the metal frame member 12 by the sealing material 24. Moreover, since the stress applied to the sealing material 24 at the time of thermal expansion can be reduced by bonding glasses having the same thermal expansion coefficient, the performance life of the sealing material 24 is extended.

  On the other hand, the glass curtain wall construction method using the glass panel unit 10 (20) of the embodiment is as follows. First, at the manufacturing plant of the glass panel unit 10 (20), the rib glass holding part of the glass panel unit 10 (20). Rib glass 14 is attached to 48 in advance (see FIG. 2), this glass panel unit 10 (20) is transported to the construction site of the glass curtain wall, and the glass panel unit is attached to the support structure at the construction site. As a result, the construction of the glass curtain wall is easy and the construction period can be shortened, the appearance design of the glass curtain wall can be improved by the rib glass 14, the view from the room can be improved, and the rib glass is damaged. Since it does not directly lead to the dropout of the unit, it is excellent in safety.

  As another construction method, the glass panel unit 10 (20) without the rib glass 14 is transported to the construction site, and after the glass panel unit 10 (20) is attached to the support structure at the construction site, the glass panel unit The rib glass 14 is attached to the rib glass holding portion 48 of 10 (20) (see FIG. 2). This makes it easy to install the glass curtain wall and shorten the construction period, and the rib glass can enhance the appearance design of the glass curtain wall, improve the view from the room, and breakage of the rib glass unit Since it does not directly lead to dropout, it is excellent in safety.

  When transporting the glass panel unit to the installation position on the construction site, after adsorbing the glass surface of the glass panel unit with a suction cup provided on a jig for transportation or lifting, the glass panel unit is mounted on the glass panel unit. It is transported to an attachment position by a crane or the like and attached to the support structure. As a result, the glass surface is attached to the suction cup and supported by hanging, so that a dedicated jig for hanging or reinforcement is unnecessary, so that the construction is easy and the construction period of the glass curtain wall can be shortened.

  As mentioned above, although embodiment thru | or example of this invention has been explained in full detail with drawing, this invention is not limited to the said embodiment thru | or example, Various in the range which does not deviate from the summary of this invention. Design changes can be made.

The perspective view of the glass panel unit of embodiment Right side view of the glass panel unit shown in FIG. The perspective view which showed the structure of the joining material which fixes a rib glass to the joint part of adjacent glass plates. (A) is a perspective view of a glass panel unit in which a frame member is attached to the vertical side portion of the glass panel, and (B) is an enlarged perspective view of a main part showing a rib glass holding portion. Horizontal section of glass panel unit with rain barrier and wind barrier Horizontal sectional view of a glass panel unit with rib glass bonded to a glass panel with a sealing material Cross-sectional view of the essential parts of a glass panel unit in which a rain barrier and a wind barrier are provided in advance in the periphery of the multilayer glass Horizontal cross-sectional view of a glass panel unit with a locking member and weathertight material on the frame Horizontal cross-sectional view of a glass panel unit in which a gap between adjacent glass panel units is sealed by a sealing material received by a seal receiving member Horizontal sectional view of a glass curtain wall where adjacent glass panel units share a single rib glass Horizontal sectional view of a glass curtain wall where adjacent glass panel units share a single rib glass Front view of a glass panel unit having a spandrel part and a vision part External cross-sectional perspective view showing an enlarged boundary between the spandrel part and the vision part External cross-sectional perspective view showing an enlarged boundary between the spandrel part and the vision part External cross-sectional perspective view showing an enlarged boundary between the spandrel part and the vision part Inside cross-sectional perspective view showing an enlarged boundary between the spandrel and vision parts An interior perspective view of the main part showing the enlarged boundary between the spandrel and vision parts An interior perspective view of the main part showing the enlarged boundary between the spandrel and vision parts An interior perspective view of the main part showing the enlarged boundary between the spandrel and vision parts The perspective view of the glass panel unit which fixed the part near the fixed part of the upper and lower ends of the rib glass with the low modulus seal or the fixed rubber. (A) is an enlarged sectional view showing the support structure of the upper and lower ends of the rib glass, (B) is an sectional view of (A). (A) is an enlarged sectional view showing another support structure of the upper and lower ends of the rib glass, and (B) is an sectional view of (A). Horizontal cross-sectional view of a glass curtain wall provided with a glass piece for bonding on the frame material for bonding rib glass to the frame material with a sealing material

Explanation of symbols

  G ... Glass plate, 10, 20 ... Glass panel unit, 12 ... Frame material, 14 ... Rib glass, 16 ... Spandrel part, 18 ... Vision part, 22 ... Rain barrier, 23 ... Wind barrier, 24 ... Sealing material, 26 ... Stop member, 28 ... Weather tight material, 30 ... Seal receiving member, 32 ... Sealing material, 34 ... Joining part, 36 ... Sealing material, 38 ... Air inlet for isobaric pressure, 40 ... Rain barrier part, 42 ... Cover member, 44 ... Low modulus seal or shaped rubber, 46 ... High modulus seal, 48 ... Rib glass holding part, 50 ... Divided holding member, 52 ... Glass piece for bonding, 54 ... Nipping member, 56 ... Bolt, 58 ... Fixing member

Claims (3)

A glass panel unit in which a glass plate and a frame member constituting a wall surface including a vision part are assembled in advance and attached to a support structure, and at least of the frame members mounted on two opposite sides of the glass plate A glass panel unit having a structure in which a rib glass holding portion is provided at one end and the rib glass can be attached by the rib glass holding portion along the sides other than the two opposite sides of the glass plate in a vertical direction and / or a horizontal direction. In the construction method of the glass curtain wall that constitutes the wall surface arranged adjacently,
After mounting the rib glass in advance on the rib glass holding part of the glass panel unit, the glass panel unit is transported to the construction site of the glass curtain wall, and the glass panel unit is attached to the support structure at the construction site. How to construct a glass curtain wall. A glass panel unit in which a glass plate and a frame material constituting a wall surface including a vision part are assembled in advance and attached to a support structure, and a spandrel part configured by mounting a frame member around the panel material Is provided integrally adjacent to the vision part, and the end part of the first frame member adjacent to the vision part among the frame members of the spandrel part, or the end part of the first frame member A glass panel unit having a structure in which a rib glass holding portion is provided at an end of the second frame member connected to the glass plate and the rib glass can be attached by the rib glass holding portion along a predetermined side of the vision portion. And / or in the construction method of the glass curtain wall that is arranged adjacent to the lateral direction to constitute the wall surface,
After mounting the rib glass in advance on the rib glass holding part of the glass panel unit, the glass panel unit is transported to the construction site of the glass curtain wall, and the glass panel unit is attached to the support structure at the construction site. How to construct a glass curtain wall. The glass surface of the glass panel unit is attached to a suction cup provided in a jig for transportation or lifting, and then transported to an attachment position of the glass panel unit to attach the glass panel unit to the support structure. Or the construction method of the glass curtain wall of 2.

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