JP5176648B2 - Seismic structure and seismic and wind pressure structure of rib glass screen - Google Patents

Description

  The present invention relates to an earthquake resistant structure and an earthquake resistant wind pressure structure of a rib glass screen.

  A glass stabilizer method and a suspended stabilizer method are well known as methods of using rib glass (glass stand) among glass screen methods of forming large openings using a large glass plate on the outer wall of a building.

  The glass stabilizer method is also called a self-supporting method with a glass stand and is a method that uses rib glass (or vertical glass, also called glass stabilizer). By supporting the face plate glass with rib glass, the deflection of the face plate glass due to its own weight and the face plate It withstands wind loads applied to glass. The suspension stabilizer method is a method that is often used when the glass plate of the opening is high, for example, by holding the upper part of the face plate glass and the rib glass and suspending it from the upper housing, This prevents bending due to its own weight.

  A rib glass screen using rib glass is erected in a state in which the vertical sides of a plurality of face plate glasses are butted, and the inside or the outside of the face is perpendicular to the glass surface of the face glass at the butting portion. In many cases, a one-rib structure in which rib glass is erected on either one of these is employed. At that time, a structural sealing material is filled in the gaps between the face plate glasses and the butt portions of the rib glass vertical sides, so-called joint portions, and the above-mentioned face plate glass and rib glass are bonded and integrated to form a rib glass screen.

  The rib glass screen is a glass building that uses face plate glass at the opening of the first floor of the building, or the opening above the first floor and the second floor, and supports the face plate glass with rib glass. Is required to withstand earthquakes. Moreover, when it uses for a building outer wall, the intensity | strength which bears the wind load by the wind pressure which a faceplate glass receives is requested | required. In the rib glass screen, the rib glass reinforces the face plate glass and is strong against a force applied in parallel to the rib glass, that is, in the in-plane direction of the rib glass, but is applied perpendicularly to the rib glass, that is, in the out-of-plane direction of the rib glass. Weak to power.

  When an earthquake occurs, face glass and rib glass are fitted and sandwiched between the upper and lower frames, and the joint between the face plate glass and rib glass is filled with a sealing material and joined between the upper and lower frames. In the rib glass screen having a layered structure, the upper frame and the lower frame are displaced, in other words, the interlayer displacement occurs. At that time, when the upper frame or the lower frame moves due to shaking caused by an earthquake and the positions of the upper frame and the lower frame are shifted, the face plate glass supported by the upper frame and the lower frame is inclined. The upper and lower parts of the rib glass are fitted and supported by the upper frame and the lower frame, respectively, and are connected and integrated by the lower frame at the lower part of the face plate glass and the rib glass. There was a problem that forced inclination occurred, the rib glass was kinked, and it was easily damaged due to S-shaped deformation.

  When used on the outer wall of a building, typhoons as weather phenomena, storms accompanying tropical cyclones such as hurricanes and cyclones, other weather phenomena such as spring first, and gusts caused by building winds, etc. are faceplate glass. Spray with extremely strong power. At this time, since the rib glass supports a large wind load applied to the face plate glass, the rib glass is required to have a strength that is not easily broken.

  The structure of the rib glass screen is disclosed in Patent Documents 1 to 5 by the present applicant.

  For example, in the seismic structure of the rib glass screen described in Patent Document 4, the upper part of the face plate glass and the rib glass is suspended and fixed on the upper casing in the rib glass screen, and the joint portion of the face plate glass and the rib glass is filled with a sealing material. At least for the rib glass, the structure that does not restrain the right and left movement is abutted with the face plate glass, the rib glass end opposite to the joint end is fixed with a hinge, the rib glass can be moved around the hinge center, Straining and twisting S-shaped deformation is suppressed. Specifically, a hinge is provided at the end of the rib glass vertical side opposite to the abutting portion with the face plate glass, and the hinge axis at the end of the rib glass vertical side opposite to the abutting portion is centered on the swing of the face plate glass. The rib glass is moved in a short pendulum direction in the short side direction.

  However, in a large-sized rib glass screen that is at least the height of the opening in which the first floor and the second floor are continuous, as the rib glass becomes longer, the rib glass is kinked due to S-shaped deformation due to interlayer displacement due to an earthquake or the like. Even if the seismic structure of the rib glass screen described in Patent Document 4 is used, as the rib glass becomes longer, the kinks of the rib glass increase, and the rib glass vertical side of the rib glass, the face plate glass, and the opposite end of the butt joint end Even if the rib glass is moved in a pendulum-like manner around the hinge provided at the end, the rib glass cannot be completely absorbed, and the rib glass may be damaged.

  Moreover, in patent document 6 by this applicant, in the joining method of a tempered glass board, the junction part sandwiched the tempered glass board from the both sides via the friction member, and the tempered glass board and the juxtaposed board And tightening with bolts and nuts through which bolts are inserted and tightened with bolts and nuts, the frictional force generated between the tempered glass plate and the friction member causes the tempered glass plates to be aligned with each other or in parallel with the tempered glass plate. A method for joining tempered glass plates, which is friction joining for joining the installation plate, is disclosed.

When the tempered glass plate is joined by using a juxtaposed plate with through-holes as a joining member, and the tempered glass plates with through-holes or between the tempered glass plate and the juxtaposed plate with bolts. By inserting a washer, which is a simple joining member, and a parallel plate and a tempered glass plate, and tightening with a bolt through the washer, the axial force of the bolt is transmitted with a small contact area between the washer and the tempered glass plate. The tempered glass plate and the side-by-side plate are difficult to slip and are not slippery, and sufficient strength to be used as rib glass for the rib glass screen by connecting the tempered glass to each other without using an adhesive or between the tempered glass and the side-by-side plate. The rib glass was produced.
JP-A-10-61069 Japanese Patent Laid-Open No. 10-61070 JP 2000-336804 A JP 2001-336244 A JP 2003-328476 A JP 2006-250345 A

  An earthquake is a phenomenon in which the energy of the accumulated crust is released due to the plate tectonics movement of the earth, and the formation or rock mass slides, or the formation or rock mass slides due to the flow of magma. Wave, S wave) is propagated. During an earthquake, a longitudinal P wave is transmitted, and then a transverse S wave is transmitted. During an earthquake, the rib glass screen is vibrated by a P wave and then oscillated by an S wave which is a transverse wave. In the suspension stabilizer method, the rib glass screen has a suspended structure, so that the face plate glass and the rib glass vibrate in a pendulum shape with the upper end as a fulcrum. At that time, in the earthquake with weak shaking, the elastic sealing material filled in the gap between the face plate glass and the rib glass butting portion, that is, the joint portion absorbs the energy of shaking, but in strong earthquakes with seismic intensity of 6 and 7, etc. Since the wave amplitude is large and the action time is also long, the vibration of the rib glass screen due to the S wave is gradually amplified and can no longer be absorbed by the sealing material, leading to destruction. At this time, stress concentration is likely to occur in the upper part of the rib glass and in the vicinity of the joint part, and the possibility of breakage is high.

  In addition, when a rib glass screen is used as the outer wall of a building, a storm caused by a tropical cyclone, a spring gust, and a gust due to a building wind blow on the face plate glass with an extremely strong wind pressure, and a large wind load is applied to the face plate glass. The rib glass screen that supports the wind load applied to the face plate glass is required to have a strength that is not easily broken. Note that this wind pressure is a positive pressure acting in the out-of-plane direction of the face plate glass as viewed from the outside of the outer wall.

  The present invention provides an earthquake-resistant structure of a rib glass screen that can withstand the oscillation of S waves caused by an earthquake even when a long rib glass is installed in order to increase the size of the rib glass screen. An object of the present invention is to provide an anti-seismic and wind-resistant structure of a rib glass screen having a wind-resistant structure to be received.

  The seismic structure of the rib glass screen of the present invention is such that the rib glass is erected along the vertical side edge of the face plate glass so that it is perpendicular to the glass surface of the face plate glass on one side or both sides of the face plate glass butt. An upper housing for suspending rib glass in a rib glass screen in which a sealing material for structure is filled in the joint portion of the butt, the face plate glass is supported by rib glass, and the rib glass is suspended from the upper housing via a hanging metal fitting. The upper part of the hanging metal fitting is fixed, the hinge is provided in the hanging metal fitting so as to be parallel to the rib glass, and the rib glass is joined to the lower part of the hanging metal fitting.

  In this way, the rib glass is suspended from the upper casing, and the rib glass screen can be swung in the direction perpendicular to the rib glass, that is, the out-of-plane direction of the rib glass around the hinge axis of the hinge. By providing a hinge, at the top of the rib glass screen with a large suspended structure that is at least the height of the opening where the first and second floors are continuous, the upper end of the rib glass where the destructive force is concentrated when rocking in an earthquake or the like is broken The effect of suppressing is expected.

  The seismic structure of the rib glass screen of the present invention is suitably used for a rib glass screen by a hanging stabilizer method in which the rib glass screen is suspended from the upper housing. In particular, it is preferably used for a rib glass screen forming an outer wall of a building.

  As described above, in the seismic structure of the rib glass screen of the present invention, the concentration of the bending stress on the rib glass upper portion caused by the in-plane direction of the face plate glass generated by the conventional rib glass screen and the out-of-plane direction of the rib glass is The problem was solved by providing a hinge on the upper hanging metal fitting, and a structure having a high modulus structure sealing material in the joint portion of the face plate glass butting the joint positively absorbed the energy of oscillation. Thus, in the earthquake resistant structure of the rib glass screen of the present invention, by providing a hinge that rotates around the hinge axis at the time of an earthquake, compared to the conventional rib glass screen, the stress concentration on the upper end of the rib glass at the time of the earthquake occurrence is reduced. It became smaller and the rib glass was less likely to be damaged by the earthquake.

  That is, the present invention is such that rib glass is erected so as to be orthogonal to the face plate glass on one side or both sides of the face plate glass to be erected, and the face seal glass is filled with the structural sealing material. In the rib glass screen in which the rib glass is hung on the upper casing through the hanging bracket, the upper portion of the hanging bracket provided with the hinge parallel to the rib glass is mounted on the upper casing for hanging the rib glass. The rib glass screen has an earthquake-resistant structure characterized in that the rib glass is bonded to the lower part of the hanging metal fitting, the rib glass is suspended from the upper housing, and the rib glass can be swung around the hinge.

  In the seismic structure of the rib glass screen of the present invention, the lower part of the hanging metal fitting is preferably made of a pair of metal plates and has a structure in which the hanging metal fitting and the rib glass are joined while sandwiching the upper part of the rib glass.

  With such a structure, the upper part of the rib glass is joined to the lower part of the hanging metal fitting, and the rib glass can swing in the out-of-plane direction around the movable hinge provided on the hanging metal fitting. Destructive force does not concentrate on the upper fixed end of the rib glass when swinging in an earthquake or the like.

  Furthermore, the present invention is the above-described seismic structure of the rib glass screen, characterized in that the lower part of the hanging metal fitting is made of a pair of metal plates and is joined in a state of sandwiching the upper part of the rib glass.

  Further, the displacement perpendicular to the face plate glass caused by the rocking of the face glass due to the wind pressure and the rib glass being swung in the in-plane direction is added to the seismic structure of the above rib glass screen. It was decided to reduce by providing a displacement suppression member in parallel under the hinge. By locating the displacement restraint member in parallel with the hanging bracket, the hinge glass is rattled by the in-plane direction of the rib glass and the out-of-plane direction of the face plate glass due to wind pressure, and the displacement of the face plate glass is also suppressed. Therefore, there is an effect of protecting the face plate glass against wind pressure. The displacement suppressing member is a member that receives the wind load on the face plate glass and prevents the rib glass screen from changing its position in the out-of-plane direction of the face plate glass due to the wind load, and a cylinder portion that constitutes the hinge; It is a member that suppresses the rattling of the hinge during a strong wind due to a minute gap on the hinge shaft, and specifically, it can be said to be a swing suppressing member or a rattling suppressing member.

  In the seismic structure of the rib glass screen of the present invention, a displacement suppression member is provided in parallel under the hinge of the hanging metal fitting, and the wind resistance applied to the face plate glass in the seismic wind and pressure structure of the rib glass screen of the present invention to which the wind pressure performance is added. Since the displacement suppressing member arranged in parallel with the hanging metal fitting receives the load, there is an effect of increasing the wind pressure resistance of the rib glass screen. Specifically, when the earthquake-resistant wind-resistant structure of the rib glass screen of the present invention is used for the outer wall, the hinge portion provided on the hanging metal fitting receives a bending force due to the wind load applied to the face plate glass. If the displacement restraining member does not receive the wind load, the minute clearance generated in the hinge portion or the like causes a slight rotation in the in-plane direction above the rib glass, and the wind pressure received by the face plate glass is applied to the hinge portion, and the minute amount generated in the hinge portion. Due to the minute displacement caused by the rotation, a large displacement is generated in the lower part of the rib glass in proportion to the length of the rib glass. This large displacement of the lower portion of the rib glass becomes a displacement in the out-of-plane direction of the face plate glass, and causes bending deformation of the face plate glass. There is a possibility that the face plate glass is damaged by the stress generated by the bending deformation of the face plate glass. Examples of minute clearances include a dimensional error between the hinge rod of the hinge portion and the cylinder hole, a dimensional error between the cylinder rod and the cylinder length, and the like.

  That is, the present invention is the rib glass screen earthquake-resistant wind-resistant structure characterized in that in the above-mentioned rib glass screen earthquake-resistant structure, the displacement suppressing member is arranged in parallel with the hanging metal fitting.

  When installing the displacement restraint member side by side with the hanging bracket, avoid the rib glass that tends to crack from the end, and swing the rib glass in the in-plane direction and the face glass in the out-of-plane direction during an earthquake. In order to suppress as much as possible, it is preferable that the displacement suppressing member is always installed so as to contact and slide against the end of the hanging metal fitting under the hinge. Specifically, it is preferable that a sliding member having a sliding surface is provided at the end of the hanging metal fitting under the hinge, and the contact surface of the displacement suppressing member and the sliding surface of the sliding member slide. Since a strong force is applied during an earthquake, the contact surface of the displacement suppressing member and the sliding surface of the sliding member are preferably at least metal.

  By disposing the displacement restraining member in parallel with the hanging metal fitting, the displacement restraining member receives the wind load received by the face plate glass, and by suppressing the minute displacement generated on the upper part of the rib glass, the displacement of the face plate glass due to the wind load is greatly suppressed. A protective effect was obtained, and an excellent anti-seismic wind-resistant structure of rib glass screen was obtained. At that time, the displacement suppressing member is brought into contact with the sliding surface of the sliding member provided at the ends of the pair of metal plates, and the sliding surface of the sliding member and the contacting surface of the displacement suppressing member are rubbed and slid. Preferably it is possible. At that time, the contact surface of the displacement suppressing member and the sliding surface of the sliding member are both slidable and durable if they are smooth metal surfaces.

  At that time, for example, a bolt is rotated to adjust the gap so that the sliding surface of the sliding member of the hanging bracket and the displacement suppressing member slide well at the bottom of the hanging bracket under the hinge. It is preferable to provide a gap adjusting function between the sliding surface of the sliding member of the hanging metal fitting and the displacement suppressing member.

  Further, the present invention is the above-described seismic and wind / pressure structure for rib glass screen, wherein the displacement suppressing member has a function of adjusting a gap with the sliding surface of the sliding member provided at the end of the hanging metal fitting. is there.

  In the rib glass screen earthquake-resistant structure or earthquake-resistant wind-and-pressure structure of the present invention, it is necessary to firmly integrate the hanging metal fitting and the rib glass in order to suppress crushing of the rib glass screen.

  In order to integrate the hanging bracket and rib glass, the lower part of the hanging bracket is a pair of metal plates, and the upper part of the rib glass is sandwiched between the glass and metal such as epoxy adhesive and silicone adhesive. There is a means for adhering the interface with an adhesive, but in order to integrate firmly with high reliability, a through hole is opened in the lower part of the hanging metal fitting and the upper part of the rib glass, and a pair of fastening members, for example, The bolts and nuts inserted into the through holes are preferably tightened.

  Suspended with bolts and nuts, which are a pair of tightening members that have through holes in the bottom of the hanging bracket and the upper end of the rib glass, overlap the hanging bracket and the rib glass, and are inserted through the through holes in the lower portion of the hanging bracket and the upper portion of the rib glass. When the lower part of the metal fitting and the upper part of the rib glass are tightened, a local force is generated in the tightening part, and it is particularly easy to break from the hole end part of the through hole of the rib glass.

  In the seismic structure or seismic wind and pressure structure of the rib glass screen of the present invention, a bolt / nut inserted between a pair of metal plates and a through hole provided in the upper portion of the rib glass with the upper portion of the rib glass sandwiched between the pair of metal plates at the lower portion of the hanging metal fitting When transmitting the force in the axial direction of the bolt generated by the strong tightening of the plate to the rib glass through a stress generating member having a through hole sandwiched between the pair of metal plates and the upper part of the rib glass, for example, the flat washer, Is larger than the diameter of the through hole of the rib glass and arranged concentrically so that the end of the through hole of the rib glass and the flat washer do not overlap, avoiding the end of the through hole of the rib glass where cracks are likely to occur. Cracks are generated by tightly joining and generating compressive stress inside the rib glass that contacts the flat washer that is the stress generating member. By suppressing the propagation, thereby firmly integrating the bracket hanging and Ribugarasu, it was possible to prevent the joint is shifted by seismic and wind loads or the like. The stress generating member is a member that generates a stress inside the rib glass at the contacted portion.

  In this way, in the seismic structure or seismic and wind / pressure structure of the rib glass screen of the present invention, for example, when a pair of metal plates at the bottom of the hanging metal fitting and the rib glass are joined, a plain washer that is a stress generating member brought into contact with the rib glass By directly transmitting the force in the axial direction of the bolt to the rib glass through a small area, the pressure per unit area increases, causing a strong compressive stress inside the rib glass, and cracks in the compressed portion of the rib glass that caused the compressive stress. Generation and propagation are suppressed, and the apparent strength of the rib glass is increased. By avoiding the end of the through hole of the rib glass and strongly pressing the plain washer that is a stress generating member against the rib glass, a strong bonding strength using the rigidity of the rib glass itself can be obtained. Prevented slippage.

  At that time, a flat washer is used as the stress generating member, the inner diameter of the flat washer is made larger than the diameter of the through hole of the rib glass, concentrically arranged and tightened, and the end portion of the rib glass through hole where cracking is likely to occur is formed. Avoiding this, the force in the bolt axis direction by tightening the bolts and nuts was transmitted, and the force in the bolt axis direction was transmitted through a flat washer in a small area, so strong pressure against the rib glass due to the strong pressure per unit area from the plain washer Pressure welding was obtained, and strong bonding strength was obtained between the hanging metal fitting and the rib glass.

  In this way, with the force in the bolt axial direction of 60 kN or more by tightening bolts and nuts used in high-strength bolt friction welding, which is used as a method for joining steel structures such as bridges and buildings, suspension metal fittings and rib glass Even when tightened, the rib glass was not damaged, and a strong bonding strength was obtained between the hanging metal fitting and the rib glass. If the force generated by tightening the bolts and nuts is greater than 300 kN, the rib glass may be damaged even if it has high rigidity.

  By making the inner diameter of the flat washer smaller than the outer diameter of the bolt head and nut, it becomes easy to tighten the rib glass with a force in the bolt axial direction of 60 kN or more. Normally, in the hexagon bolt and nut, the maximum outer diameter of the bolt head and nut is called a diagonal distance. In order to transmit a strong tightening torque, it is preferable to use hexagon bolts and nuts, and among them, high-strength bolts and nuts for friction joining used in construction are preferably used.

  That is, according to the present invention, a pair of metal plates and rib glass at the lower part of the hanging metal fitting are provided with through holes, and the stress generating member having a through hole having an inner diameter larger than the diameter of the through hole provided in the rib glass is passed through each through hole. The hole is sandwiched between the suspension fitting and the rib glass so that the holes are concentric, and the force generated by the tightening of the pair of fastening members inserted through the individual through holes and stress generating members is sandwiched between the suspension fitting and the rib glass. The rib glass screen is characterized in that it is transmitted to the rib glass through a stress generating member, compressive stress is generated inside the rib glass at the portion where the stress generating member contacts, and the hanging metal fitting and the rib glass are joined. Structure.

  Furthermore, the present invention is the above-described seismic structure of the rib glass screen, wherein the stress generating member is a flat washer and the pair of fastening members are bolts and nuts.

  Furthermore, the present invention is the above-mentioned seismic structure of the rib glass screen, wherein the force generated by tightening the bolt and nut is 60 kN or more and 300 kN or less.

  Furthermore, the present invention is the above-described seismic structure for a rib glass screen, wherein the bolt and nut are hexagon bolts and nuts, and the inner diameter of the plain washer is smaller than the outer diameter of the bolt head and nut.

  Further, the present invention provides a stress generating member having a through hole having an inner diameter larger than the diameter of the through hole provided in the rib glass by providing a through hole in the pair of metal plates and the rib glass at the lower part of the hanging metal fitting. The hole is sandwiched between the suspension fitting and the rib glass so that the holes are concentric, and the force generated by the tightening of the pair of fastening members inserted through the individual through holes and stress generating members is sandwiched between the suspension fitting and the rib glass. The rib glass screen is characterized in that it is transmitted to the rib glass through a stress generating member, compressive stress is generated inside the rib glass at the portion where the stress generating member contacts, and the hanging metal fitting and the rib glass are joined. Wind-resistant structure.

  Furthermore, the present invention is the above-described seismic and wind-resistant structure for a rib glass screen, wherein the stress generating member is a flat washer and the pair of fastening members are bolts and nuts.

  Furthermore, the present invention is the above-described seismic and wind-resistant structure for a rib glass screen, wherein the force generated by tightening the bolt and nut is 60 kN or more and 300 kN or less.

  Furthermore, the present invention is the above-described seismic wind and pressure-resistant structure of the rib glass screen, wherein the bolt and nut are hexagon bolts and nuts, and the inner diameter of the flat washer is smaller than the outer diameter of the bolt head and nut. is there.

  Moreover, this invention is a rib glass clean which has said earthquake resistant structure of a rib glass screen.

  Furthermore, the present invention is a rib glass screen having the earthquake-resistant wind-resistant structure of the rib glass screen described above.

  Due to the seismic structure of the rib glass screen of the present invention, when an earthquake or the like occurs, the upper end of the rib glass is suspended and fixed to the upper housing via the hanging metal fitting, a hinge is provided on the hanging metal fitting, and the rib glass is centered on the hinge. By making the swayable, the displacement that occurs in the in-plane direction of the face plate glass and the out-of-plane direction of the rib glass, in other words, absorbs the difference in displacement and prevents the rib glass from being damaged without extreme deformation of the rib glass. Became possible.

  In addition, in the seismic and wind-resistant structure of the rib glass screen of the present invention, the displacement of the displacement suppressing member for suppressing as much as possible the movement of the face plate glass in the out-of-plane direction is provided in parallel with the hanging metal fitting, so that the face plate glass can carry wind load. When received, the displacement of the face plate glass in the out-of-plane direction was suppressed, and a rib glass screen having high wind pressure resistance was obtained.

  Specifically, the seismic structure of the rib glass screen of the present invention is provided with a hinge on a hanging metal fitting, and when an earthquake or the like occurs, the rib glass fixed to the lower part of the hanging metal fitting is centered on the hinge axis of the hinge. By making it possible to swing, the rib glass can follow the in-plane direction of the face plate glass in the event of an earthquake, etc., and the force does not concentrate on the upper part of the rib glass, and the joint portion of the face plate glass and rib glass is joined. Filled structural sealant can absorb the displacement and force caused by the earthquake and prevent the rib glass from being damaged.

  Furthermore, in the seismic and wind resistant structure of the rib glass screen of the present invention, since the displacement suppressing member arranged in parallel with the hanging metal fitting receives the wind load applied to the face plate glass, a rib glass screen that is not easily damaged by wind pressure is provided.

  Further, in the seismic structure and wind pressure structure of the rib glass screen according to the present invention, the lower part of the hanging metal fitting is a pair of metal plates, and the upper part of the rib glass is sandwiched and joined, and the pair of metal below the hanging metal fitting. A plate and rib glass are provided with through holes, and a plain washer, which is a stress generating member with an inner diameter larger than the diameter of the through hole provided in the rib glass, is sandwiched between the hanging metal fittings and the rib glass so that the individual through holes are concentric. The force generated by tightening bolts and nuts, which are a pair of tightening members inserted into the individual through holes and plain washers, is transmitted to the rib glass via the plain washers sandwiched between the hanging metal fittings and the rib glass, and suspended. By joining the hanging bracket and the rib glass very firmly, the joint between the hanging bracket and the rib glass does not shift during an earthquake, etc. Seismic structure or seismic wind pressure resistance structure of ribs glass screen was obtained.

  The rib glass screen includes a rib glass screen in which the rib glass is on the indoor side, a rib glass screen in which the rib glass is on the outdoor side, and a rib glass screen on both sides, in other words, on both sides. The rib glass on the indoor side is simpler in structure, there is no bulge on the outside, and there is much demand as an outer wall of the building. Used to describe the wind-resistant structure.

  The seismic structure of the rib glass screen of the present invention is suitable for use on a large rib glass screen having a rib on one side used for a building outer wall, but it can also be used for a rib glass screen of both rib types having rib glass on both sides. Fully fulfills the seismic function. In addition, the rib glass screen anti-seismic and wind-resistant structure of the present invention using the displacement suppressing member performs an excellent wind-resistant function.

  An example of an embodiment of the seismic structure of the rib glass screen of the present invention will be described with reference to the drawings.

  FIG. 1A is a plan view of an example of a rib glass screen having the earthquake-resistant structure of the present invention. FIG. 1B is a side view of an example of a rib glass screen having the earthquake-resistant structure of the present invention.

  As shown in FIGS. 1A and 1B, a rib glass 3 is erected in a direction orthogonal to the face plate glass 1 on one side (interior side) of the abutment portion 2 of the face plate glass 1 standing as an outer wall, and butted. In a rib glass screen in which the face seal glass 1 is supported by the rib glass 3 from one side by filling the joint portion of the part 2 with the structural sealing material, the upper casing 4 for suspending the rib glass 3 can be rotated around the hinge shaft The upper part of the hanging metal fitting 6 provided with the hinge 5 so as to be parallel to the rib glass 3 is fixed, the rib glass 3 is joined to the lower part of the hanging metal fitting 6, and the rib glass 3 is suspended from the upper housing 4. The rib glass 3 is made swingable about the hinge axis of the hinge 5. The joint portion is a gap portion of each glass butting portion 2 for filling and joining the structural sealing material when the face plate glasses 1 and the face plate glass 1 and the rib glass 3 are joined.

  FIG. 2A is an enlarged front view of an example of a main part of the seismic structure of the rib glass screen of the present invention. FIG. 2B is an enlarged side view of an example of a main part of the seismic structure of the rib glass screen of the present invention.

  Specifically, as shown in FIGS. 2A and 2B, when the rib glass 3 is swingably provided around the hinge 5, a plurality of face plate glasses 1, 1,. Each upper part and the upper end part of the rib glass 3 erected so as to be orthogonal to the adjacent butted portions 2 of the face plate glasses 1 are suspended and supported by the upper housing 4 via the hanging metal fittings 6. The joint portions of the butted portions 2 with the rib glass 3 were filled with a high modulus structural sealing material.

  Further, in the seismic structure of the rib glass screen of the present invention, as shown in FIGS. 2A and 2B, a hanging metal fitting 5 is provided with a hinge 5 to hold the upper end of the rib glass 3, so that the hanging metal fitting is used. A pair of metal plates 7 was formed below the hinge 5 of 6.

  Specifically, as shown in FIG. 2A, the hanging metal fitting 6 is fixed to the upper housing 4 with bolts 8 and nuts 9, and the upper side of the pair of metal plates 7 below the hanging metal fitting 6 joined to the rib glass 3. The hinge 5 was provided. As a specific example, a cylinder hole is provided at both upper ends of the pair of metal plates 7 of the hanging metal fitting 6, and a cylinder hole is provided at the upper center of the pair of metal plates 7 at the lower part of the hanging metal fitting 6. The hinge rod as a hinge shaft was passed through each cylinder hole, and the tip of the hinge rod was fixed with a washer and a bolt so that the hinge rod was not displaced. In this way, the lower part of the hanging metal fitting 6 can swing in the out-of-plane direction of the rib glass 3 with the hinge rod of the hinge 5 as the central axis when an earthquake or the like occurs.

  As shown in FIGS. 1A and 1B, a hinge 5 is provided on a hanging metal fitting 6 that sandwiches the upper end portion of the rib glass 3 so that the rib glass 3 can swing around the hinge rod. When the face plate glass 1 is tilted due to an interlayer displacement due to an earthquake, the rib glass 3 is caused by an earthquake or the like by causing the rib glass 3 to follow the displacement of the face plate glass 1 without generating a stress that would cause destruction at the upper end of the rib glass 3. This is to prevent 3 from being damaged.

  Next, in addition to the above-described seismic structure of the rib glass screen, an example of the embodiment of the seismic wind and pressure structure of the rib glass screen of the present invention in which the displacement suppressing member is arranged in parallel with the hanging metal fitting will be described with reference to the drawings.

  FIG. 3A is a plan view of an example of a rib glass screen having the earthquake-resistant wind-resistant structure of the present invention. FIG. 3B is a side view of an example of a rib glass screen having the earthquake-resistant wind-resistant structure of the present invention.

  In addition to the seismic structure of the rib glass screen shown in (A) and (B) of FIG. 1, as shown in (A) and (B) of FIG. The sliding member 11 was fixed to the lower part of the hinge 5 of the hanging metal fitting.

  FIG. 4A is an enlarged front view of an example of a main part of the earthquake-resistant wind-resistant structure of the rib glass screen of the present invention. FIG. 4B is an enlarged view showing a side surface of an example of a main part of the seismic and wind resistant structure of the rib glass screen of the present invention in cross section. In addition, the cross section in A and A 'in FIG. 4 (A) and the side surface in A and A' are shown.

  Specifically, as shown in FIGS. 4A and 4B, when the rib glass 3 is swingably provided around the hinge 5, a plurality of face plate glasses 1, 1,. The upper end portions of the rib glass 3 erected so as to be orthogonal to the adjacent butting portions 2 between the upper portions and the face plate glasses 1 are suspended and supported by the upper housing 4 via the hanging metal fittings 6. The joint portion of the butted portion 2 with the rib glass 3 was filled with a high modulus structural sealing material. In this way, the hanging metal fitting 6 and the displacement suppressing member 10 are provided side by side.

  Further, in the seismic and wind-resistant structure of the rib glass screen of the present invention, as shown in FIGS. 4A and 4B, the hanging metal fitting 6 is provided with a hinge 5 so that the upper end of the rib glass 3 is clamped. A pair of metal plates 7 is provided below the hinge 5 of the lowering metal fitting 6. The above-described displacement suppressing member 10 is installed on the metal plate 12 so as to come into contact with the sliding surfaces of the two sliding members 11 provided at the ends of the pair of metal plates 7 from the both sides. Set up. At the time of an earthquake, the sliding surface of the sliding member 11 provided at the end of the pair of metal plates 7 and the contact portion of the displacement suppressing member 10 are rubbed and slid so that the rib glass 3 can swing. Is preferred. At this time, the sliding surface of the sliding member 11 and the contact surface of the displacement suppressing member 10 are preferably made of metal suitable for rubbing.

  Specifically, as shown in FIG. 4A, the hanging metal fitting 6 is fixed to the upper housing 4 with bolts 8 and nuts 9, and the upper side of the pair of metal plates 7 below the hanging metal fitting 6 joined to the rib glass 3. The hinge 5 was provided. As a specific example, a cylinder hole is provided at both upper ends of the pair of metal plates 7 of the hanging metal fitting 6, and a cylinder hole is provided at the upper center of the pair of metal plates 7 at the lower part of the hanging metal fitting 6. The hinge rod as a hinge shaft was passed through each cylinder hole, and the tip of the hinge rod was fixed with a washer and a bolt so that the hinge rod was not displaced. In this way, the pair of metal plates 7 and the rib glass 3 below the hanging metal fitting 6 can be swung in the out-of-plane direction of the rib glass 3 around the hinge rod of the hinge 5 when an earthquake or the like occurs. .

  Further, as shown in FIG. 4A, for example, the displacement restraining member 10 is attached and fixed to the metal plate 12 welded to the upper housing 4 so as to be juxtaposed with the hanging fitting 6, and the hanging fitting 6 The sliding member 11 is attached to the end portions of the pair of lower metal plates 7, and the cylindrical member 13 is moved in the displacement suppressing member 10 by turning a bolt (not shown) that is combined with the metal plate 12. And the distance between the sliding members 11 was adjusted so that the end of the cylindrical member 13 was in contact with the sliding surface of the sliding member 11.

  In addition to the seismic structure of the rib glass screen, in the seismic wind and pressure resistant structure of the rib glass screen of the present invention in which the displacement suppressing member is arranged in parallel with the hanging metal fitting, the face glass 1 is swung in the out-of-plane direction by the wind pressure, and the rib glass 3 is the surface. A displacement perpendicular to the face plate glass 1 caused by swinging inward is structured to be reduced by a displacement suppressing member 10 arranged in parallel below the hinge 5 of the hanging metal fitting 6.

  Next, an example of the displacement suppressing member 10 will be described in detail.

  FIG. 5 is an enlarged plan view of an example of the displacement suppressing member. Only the main body of the displacement suppression member is shown in cross section.

  For example, as shown in FIG. 5, the displacement suppressing member 10 is fixed to the metal plate 12 by welding or the like. A screw hole is provided in the sliding member 11, a bolt insertion hole is provided in the metal base 14 fixed to the pair of metal plates by welding or the like, and the sliding member 11 is fixed to the pair of metal plates 7 below the hanging metal fitting 4. The metal pedestal 14 was fixed with bolts 15 in Rago.

  Further, the displacement suppressing member 10 has a structure having a columnar member 13 inside the displacement suppressing member main body 16, a screw hole is provided in the metal plate 12, the bolts 17 are assembled, and the bolts 17 are turned, whereby the distal ends of the bolts 17. Is configured to press the end face of the cylindrical member 13. The bolt 17 was turned to move the cylindrical member 13 in the horizontal direction, and the end surface of the other displacement suppressing member 7 was brought into contact with the sliding surface of the sliding member 11. In this way, it is possible to eliminate a slight space between the end of the cylindrical member 13 and the sliding surface of the sliding member 11. The steel ball bearing 18 is designed to be sandwiched between the displacement suppressing member main body 16 and the column member 13 so that the column member 13 can move only in the horizontal direction and does not move in the vertical direction.

  The bolts 17 are preferably preliminarily fitted with nuts 19 for preventing loosening so that the position of the columnar member 13 can be easily adjusted and the position of the columnar member 13 is not shifted after the adjustment. Instead of the bolt 17, a hexagon socket set screw or the like may be used.

  Thus, by eliminating the gap between the sliding surfaces of the columnar member 13 and the sliding member 11, the rib glass 3 becomes difficult to rotate in the in-plane direction, and the displacement displacement of the rib glass 3 is suppressed by the displacement suppressing member 10. be able to.

  Further, when the end surface of the cylindrical member 13 and the sliding surface of the sliding member 11 are in contact with each other, strictly speaking, when viewed from the microscopic side, only the circumference of the end surface of the cylindrical member 13 that is both a plane and the sliding member 11 Since the sliding surface comes into contact, the shape of the contact portion is a line. Since the shape of the contact portion is a line, the contact area when rubbing is very small at the time of swinging, and only the in-plane swing of the rib glass 3 when the face plate glass is subjected to wind load is suppressed, and in the out-of-plane direction. The vibration resistance of the hinge 5 is not impaired.

  Further, the end face of the cylindrical member 13 may be tapered so as to have a convex shape or a concave shape instead of being a flat surface, which makes the movement smoother.

  In addition, in the earthquake-resistant wind-resistant structure of the rib glass screen of the present invention, the strength of the joint between the rib glass 3 and the hanging metal fitting 6 is important.

  FIG. 6 is an enlarged cross-sectional view of the joint between the hanging metal fitting and the rib glass. The cross section is shown except for the bolt 20 and the nut 21.

  As shown in FIG. 6, the stress generating member is arranged such that the upper part of the rib glass 3 provided with the through hole overlaps the pair of metal plates 7 below the hanging metal fitting 6 provided with the through hole. As a plain washer 22. Next, using a bolt 20 and a nut 21 as a pair of fastening members, the bolt 20 is tightened into a through hole of a flat washer 23 for fastening, a through hole of one metal plate 7 below the hanging metal fitting 6, and a stress generating member. A through hole in the flat washer 22, a through hole in the rib glass 3, a through hole in the flat washer 22 as a stress generating member, a through hole in the other metal plate 7 below the hanging metal fitting 6, and then a flat for tightening. The washer 23 was inserted in the order of the through holes. Next, the rib glass 3 and the pair of metal plates 7 were joined by tightening the nuts 21 on the bolts 20 and tightening them.

  At this time, in order to prevent the rib glass 3 from being cracked by the strong force in the bolt axis direction that is generated when the bolt 20 and the nut 21 are strongly tightened, the stress generating member is used from the hole diameter of the through hole formed in the rib glass 3. The inner diameter of a certain flat washer 22 is increased by 1.0 mm or more, preferably 4.0 mm or more. At this time, in order to prevent the end portion of the through hole of the rib glass 3 and the flat washer 22 from overlapping, it is possible to use a circular flat washer 22 and arrange the flat washer 22 to be concentric with the through hole of the rib glass 3. preferable. In this way, the inner diameter of the plain washer 22 is increased by 1.0 mm or more, preferably 4.0 mm or more with respect to the hole diameter of the through hole of the rib glass 3. The interval is 0.5 mm or more, preferably 2.0 mm or more. If the inner diameter of the flat washer 22 is less than 1.0 mm with respect to the through hole of the rib glass 3, in other words, if the distance from the end of the through hole of the rib glass 3 to the flat washer 22 is less than 0.5 mm, the end of the through hole of the rib glass 3 The force in the bolt axis direction may propagate and cause cracks. When the inner diameter of the flat washer 22 is increased beyond 20 mm with respect to the hole diameter of the through hole of the rib glass 3, it is difficult to transmit the force in the bolt axis direction.

  The bolts 20 and nuts 21 used are high-strength hexagon bolts and nuts, in other words, high-strength hexagon bolts having a mechanical property grade of F8T or higher, or strength categories of 8.8, 10.9, 12 .9 hexagonal bolts and nuts or Torcia type high strength bolts are preferably used, among them high strength bolts and nuts for friction joining used in construction, in other words, high mechanical grade F8T or higher Force hexagon bolts and nuts are preferably used. By joining the rib glass 3 and the hanging metal fitting 6 with high strength bolts and nuts, a strong joining force can be obtained. The grade of high-strength hexagon bolts, nuts and washers according to their mechanical properties is described in JIS B1186-1995 “Set of high-strength hexagon bolts and plain washers for friction welding” and tightened with high-strength bolts and nuts. Torque is a strong bolt axial force introduced by high-strength bolt friction welding, which is used as a method for joining steel structures such as bridges and buildings, and a torque of 60 kN or more and 300 kN or less is obtained.・ Set to a range of m or less.

  Further, as shown in FIG. 6, when the inner diameter of the plain washer 22 is smaller than the diagonal distance between the bolt 20 and the nut 21, the rib glass 3 and the hanging metal fitting 6 are firmly tightened with a force in the bolt axial direction of 60 kN or more. It becomes easy to join. When the inner diameter of the plain washer 22 is smaller than the diagonal distance between the bolt 20 and the nut 21, the force in the bolt axial direction due to the strong tightening of the bolt 20 and the nut 21 is transmitted linearly to the rib glass 3. If the force in the bolt axis direction is transmitted obliquely, not only the bolts are not strongly tightened, but also a local force is applied to each pressure contact portion, and the rib glass 3 may be damaged.

  At this time, the inner diameter of the plain washer 22 is preferably 2.0 mm or more and more preferably 5.0 mm or more smaller than the diagonal distance of the head of the bolt 20 and the diagonal distance of the nut 21. By doing so, when the bolt 20 and the nut 21 are concentrically tightened, the allowance for the head 20 of the bolt 20 and the flat washer 22 of the nut 21 is 1.0 mm or more, preferably 2.5 mm or more. The force in the bolt axis direction due to the tightening of the nut 20 is transmitted to the flat washer 22 which is a stress generating member and is transmitted to the rib glass 3.

  The plain washer 22 that is a stress generating member has a grade of F35 or more according to the mechanical properties of the washer so that it can withstand the strong force in the bolt axial direction by tightening the hexagonal bolt 19 and nut 20 of F8T or higher and not be deformed. A flat washer 22 or a stainless steel flat washer 22 is used, but an aluminum flat washer 22, which has a Young's modulus close to that of glass and can be easily adapted to the joint, can suppress cracking, has a high coefficient of linear thermal expansion, and is difficult to loosen. Alternatively, a flat washer 22 made of an aluminum alloy is a preferred material for use in the earthquake-resistant wind-resistant structure of the rib glass screen of the present invention.

  Further, as shown in FIG. 6, when tightening the bolt 20 and the nut 21, it is easy to tighten, and it is easy to transmit the torque of the tightening tool. Therefore, the plain washer 23 is bitten between the bolt 20 and the nut 21 and the pair of metal plates 7. It is good to make it. By doing so, the force in the bolt axial direction is transmitted linearly to the flat washer 23, the metal plate 7, the flat washer 22, the rib glass 3, the flat washer 22, the metal plate 7, and the flat washer 23. Further, two or more, preferably four or more through-holes are formed in the joint portion of the rib glass 3, and the rib glass 3 and the hanging metal fitting 6 are attached using bolts 20, nuts 21, and plain washers 22 that are fastening members. If they are joined, a force of 60 kN or more and 300 kN or less in the bolt axial direction by tightening the bolts 20 and nuts 21 acts on each joint, and the rib glass 3 and the hanging metal fitting 6 are strongly joined.

  Under the present circumstances, the location and number of a junction part can be set suitably. However, although depending on the thickness of the rib glass 3 and the hole diameter of the through hole of the rib glass 3, if the rib glass 3 has many through holes, the strength of the rib glass 3 itself is lost. In particular, when the distance between different through holes is represented by the shortest distance between the ends of the different through holes, and the distance is 30 mm or less, the strength of the rib glass 3 itself is lost due to the provision of the through holes. The maximum number of through holes provided depends on the size of the rib glass 3 and the interval between the different through holes. Note that the bonding strength between the rib glass 3 and the hanging metal fitting 6 is increased by increasing the number of bonding portions, or by increasing the distance between the bonding portions, in other words, the distance between the bonding portions.

  In this way, as shown in FIG. 6, the rib glass 3 sandwiched between the pair of metal plates 7 below the hanging metal fitting 6 is avoided from the end portion of the through hole of the rib glass 3 through the plain washer 22 as a stress generating member. By tightening and fixing the bolt 20 and the nut 21, the rib glass 3 and the hanging metal fitting 6 are firmly fixed, and the rib glass 3 receives loads such as positive pressure and negative pressure applied in the out-of-plane direction of the face plate glass 1. It became possible.

  1 (B) and FIG. 3 (B) connect the face plate glass 1 and the rib glass 3, and use a metal facade glazing (hereinafter abbreviated as MFG) method. It is joined. The MFG construction method is a construction method in which a through hole is not formed in a glass plate and the end portion of the glass plate is sandwiched and supported by a metal fitting.

  As shown in FIG. 1B and FIG. 3B, in the rib glass screen using the MFG method, the half-rib glass in which the face plate glass 1 and the rib glass 3 are joined in the height direction of the face plate glass 1; By doing so, there is a rib glass up to the lowermost part of the face plate glass 1, in other words, in the half rib glass, an open space can be created in the lower part of the half rib glass compared to the case of the through rib glass. However, since the half-rib glass must be supported by the half-rib glass shorter than the through-rib glass, the force applied to the face plate glass 1 due to wind pressure or the like is stronger than the through-rib glass. Required. For the rib glass screen using the MFG method, the joining structure of the hanging metal fitting 6 and the rib glass 3 using the stress generating member shown in FIG. 6 is preferably used.

  (A) of FIG. 7 is a longitudinal cross-sectional view of an example of the attachment structure of face plate glass, and is the attachment structure of the upper end part of face plate glass. (B) of FIG. 7 is a longitudinal cross-sectional view of an example of the attachment structure of face plate glass, and is the attachment structure of the lower part of face plate glass.

  As shown in FIG. 7B, the face plate glass 1 is self-supported on a sash frame 25 via a setting block 26, and the load of the face plate glass 1 is entrusted to the sash frame 25. As shown in FIGS. 7A and 7B, a backup material 27 is provided between the upper and lower chambers of the face plate glass 1, between the outdoor side surface and the lower portion of the sash frame 25, and the backup material 27, face plate The water-sealing seal material 28 is filled in a portion surrounded by the upper surface or the lower surface of the glass 1 and the sash frame 25 for water-stopping of rainwater or the like to prevent intrusion of rainwater or the like.

  Although the preferred embodiment has been described above, the present invention is not limited to this, and various applications can be considered.

  The structural sealing material used to fill the joints of the butted portion 2 between the face plate glass 1 and the rib glass 3 used in the seismic structure and the seismic wind resistance structure of the rib glass screen of the present invention is a high modulus elastic sealing material. Some silicone sealants and acetic acid type silicone sealants can be used. For example, product number SE960 manufactured by Toray Dow Corning Co., Ltd. may be mentioned.

  Moreover, as the water stop sealing material 28, not only a silicone type sealing material but a polysulfide type sealing material etc. can be used. For example, in GE Toshiba Silicone Co., Ltd., product name, Tosseal, product number 381 can be mentioned. As the backup material 27, foamed polyethylene or chloroprene rubber can be used.

  As the face plate glass 1 or the rib glass 3, for example, a raw plate glass that has been manufactured in a plate glass manufacturing facility by a float process and has not been subjected to any tempering treatment. Glass, semi-strengthened (double-strength) glass with a modest tensile stress, chemically tempered glass that is chemically strengthened by replacing the contained sodium ions with potassium ions, or polyvinyl butyral or ethylene-acetic acid between the glass plates Examples thereof include laminated glass in which a sheet made of a vinyl copolymer is sandwiched and heated and melted to adhere a glass plate, or a glass plate having a scattering prevention film attached thereto. Furthermore, a glass plate on which a decorative pattern, a pattern, or the like is printed, painted, or coated as the glass plate is also included.

  The strength of the tempered glass is stronger than that of the green plate glass, and it is preferable to use the tempered glass for the rib glass 3 when constructing the earthquake-resistant wind-resistant structure of the rib glass screen of the present invention. Raw plate glass may be used as long as plate glass can be used. Further, the rib glass 3 may be used as a laminated glass so that the rib glass 3 is not scattered in the event of damage. At that time, in the through hole portion which is a joint portion between the hanging metal fitting 6 and the rib glass 3, in consideration of the diameter of the through hole, in the rib glass 3, only one glass plate forming the laminated glass is a plain washer which is a stress generating member. It is preferable to have a structure in which 22 is in contact with avoiding the end portion of the through hole of the rib glass 3.

  Embodiments of an earthquake-resistant structure and an earthquake-resistant and wind-resistant structure of a rib glass screen according to the present invention will be described below in detail with reference to the drawings. The rib glass screen having the dimensions shown below is given as an example of the present invention, and the present invention is suitably used if it is a large glass screen as described below.

  Heated above the softening point of soda lime silicate glass with a width of 700 mm and a height of 6400 mm, and a face plate glass 1 of 4 sheets of soda lime silicate glass made of a float method with a width of 988 mm, a height of 8150 mm, and a plate thickness of 25 mm After that, three sheets of tempered glass rapidly cooled by air cooling and applied with tensile stress on the surface are used for the rib glass 3, as shown in FIG. 1 (A) and (B), or FIG. 3 (A) and (B). A rib glass screen as shown was made.

  The dimensions of the rib glass 3 are a plate thickness of 19 mm, a width of 700 mm, and a length of 6400 mm. From the corner of the rib glass 3 on the glass fixing end side, 100 mm in the glass width direction from the corner on the fixing end side, in the glass length direction. A through hole for inserting a bolt 20 having a diameter of 24 mm is provided at a position of 100 mm, and the bolt 20 having a diameter of 24 mm is further inserted from the through hole at an interval of 500 mm in the width direction of the rib glass 1 and an interval of 500 mm in the length direction. Four through holes for insertion were provided.

  Next, as shown in FIGS. 2 (A) and 2 (B) or FIG. 4 (A) and (B), the hanging metal fitting 6 is fixed to the upper housing 4 which is an H-shaped steel material with bolts 8 and nuts 9. did.

  Next, a hanging metal fitting 6 to be joined to the rib glass 3 was prepared using a general structural rolled steel SS400 having a thickness of 16 mm. Specifically, the general structural rolled steel SS400 having a thickness of 16 mm was processed, and the hinge 5 was provided on the upper side of the pair of metal plates 7 below the hanging metal fitting 6. Specifically, the SS 400 is bent, and as shown in FIGS. 2A and 4A, the diameter of 42.0 mm to 42.3 mm is provided at both ends of the hinge 5 on the upper part of the hanging metal fitting 6. A cylinder hole with machining accuracy is provided, and then a cylinder hole with machining accuracy of 42.0 mm to 42.3 mm in diameter is provided at the center of the upper hinge 5 of the pair of metal plates 7 below the hanging metal fitting 6. Bolt holes were drilled at both ends of the hinge rod through SS400 hinge rods with a processing accuracy of 41.8 mm to 42.0 mm in diameter, and fixed with a plain washer with a diameter of 50 mm with a M10 bolt to form a hinge 5. In this way, the hinge 5 was obtained by passing the hinge rod through the hinge hole divided into three, and it was confirmed that the rib glass 3 moved in an arc shape in the out-of-plane direction around the hinge rod.

  In the glass screen shown in FIGS. 3A and 3B and in FIGS. 4A and 4B, as shown in FIG. 5, the displacement suppressing member 10 has a main body 16 of the displacement suppressing member 10. Was fixed to the metal plate 12 by welding. Next, the bolts 15 of M24 are fitted into the screw holes provided in the sliding member 11 and the metal base 14 in the pair of metal plates 7 below the hanging metal fitting 4 so that the sliding member 8 and the metal are attached to the metal plate 7. The base 14 was fixed. The size of the sliding surface of the sliding member 11 is 120 mm square.

  Further, the displacement suppression member 10 has a structure having a columnar member 13 inside the main body 16 of the displacement suppression member. The cylindrical member 13 has a diameter of 100 mm and a length of 50 mm. A screw hole is provided in the metal plate 12, the bolts 17 of the M24 are assembled, and the bolts 17 are turned, whereby the tip of the bolts 17 pushes the end surface of the columnar member 13. The bolt 17 was turned to move the cylindrical member 13 in the horizontal direction, and the end surface of the other cylindrical member 13 was brought into contact with the sliding surface of the sliding member 11. In this way, it is possible to eliminate a slight space between the end of the cylindrical member 13 and the sliding surface of the sliding member 11. The steel ball bearing 18 is designed to be sandwiched between the displacement suppressing member main body 16 and the column member 13 so that the column member 13 can move only in the horizontal direction and does not move in the vertical direction. The bolts 17 of the M24 are pre-assembled with nuts 19 of the M24 for preventing loosening so that the position of the displacement suppressing member 10 can be easily adjusted and the position of the cylindrical member 13 is not shifted after the adjustment. It was.

  Next, as shown in the enlarged cross-sectional view of the joint between the hanging metal fitting and the rib glass in FIG. 4, the rib glass 3 is sandwiched between a pair of metal plates 7 below the hanging metal fitting 6, and as shown in FIG. The bolts 20 and nuts 21 were tightened and joined via a plain washer 22.

  In this way, the hinge 5 is provided on the hanging metal fitting 6, and when an earthquake or the like occurs, the rib glass 3 sandwiched between the pair of metal plates 7 at the lower part of the hanging metal fitting 6 and fixed by the bolt 20 and the nut 21. Is swingable in the out-of-plane direction of the rib glass 3 around the hinge rod of the hinge 5.

  1A and 1B in FIG. 1 or the butted portion 2 between the face glass 1 and the rib glass 3 shown in FIGS. 3A and 3B, the interval is 12 mm, in other words, the joint The part was 12 mm, and as a structural sealing material to be filled, product number SE960 manufactured by Toray Dow Corning Co., Ltd. was used. Moreover, as the water stop sealing material 28 shown in FIG. 7, the product number and 381 were used in the product name and toss seal made from GE Toshiba Silicone Co., Ltd. which is a polysulfide type sealing material. As the backup material 26, polyethylene foam was used.

  In this embodiment, as shown in FIG. 1B or FIG. 3B, the face plate glass 1 and the rib glass 3 which is a half rib glass are joined to each other at a height of 2500 mm from the floor using the connection fitting 24. And the rib glass screen by the MFG method using the half rib which provided the space where a person can walk enough in the lower space of the rib glass 3 was produced.

  Each component of the connection fitting 24 and its structure will be described.

  (A) of FIG. 8 is a front view when the face plate glass and the rib glass are joined with the joining metal fitting. FIG. 8B is a side view when the face plate glass and the rib glass are joined with the joining metal fitting.

  In this embodiment, specifically, as shown in FIGS. 8A and 8B, the end portion of the face plate glass 1 at the butting portion 2 has a male screw portion of M10 at the center of a disk having a diameter of 80 mm. And the metal fitting 30 provided with an 80 mm diameter disk having an M10 female screw portion on the metal fitting 29 side and an M20 male screw portion on the opposite side, are connected together in an end. The part was sandwiched between the pair of disks. A through hole having a diameter of 13 mm is provided in the center so that the face plate glass 1 and the metal fittings 29 and 30 do not directly contact each other and serve as a buffer material when the metal plate 29 and the metal fitting 30 sandwich the end portion of the face glass 1. A spacer 31 made of ethylene-propylene rubber (hereinafter abbreviated as EPDM) having a diameter of 80 mm and a thickness of 5 mm was sandwiched between the face plate glass 1 and the disk portions of the metal fittings 29 and 30.

  Next, a cylindrical metal fitting 32 having a diameter of 35 mm and a length of 103 mm, in which a female screw portion of M20 was provided at one end and a through hole having a diameter of 13 mm was provided at the opposite end, was connected to the metal fitting 30 in a combined manner.

  Next, M12 is inserted into the through hole at the bottom of the connecting plate 33 and the through hole of the cylindrical metal member 32 so that the cylindrical metal member 32 is sandwiched between a pair of connecting plates 33 having a length of 198 mm and a width of 48 m provided with three through holes having a diameter of 13 mm. After passing the bolt, the connecting plate 33 and the cylindrical metal fitting 32 were joined together with a nut of M12. A polytetrafluoroethylene collar 34 was used to fill the space between the connection plate 33 and the cylindrical metal fitting 32.

  The portion of the connection plate 33 that contacts the rib glass 3 is sandwiched between two through holes and the rib glass 3 of the connection plate 33 with a spacer 35 made of ethylene-propylene-diene rubber (hereinafter abbreviated as EPDM) having through holes. The two provided through holes are overlapped, and M12 bolts are inserted in the order of the connection plate 33, spacer 35, rib glass 3, spacer 35, and connection plate 33, and are joined together with nuts. The through hole portion of the rib glass 3 was covered with a cylindrical EPDM spacer on the screw portion of the bolt so that the inner surface of the through hole and the screw thread were not in direct contact. Thus, after joining the face plate glass 1 and the rib glass 3, the sealing material for structure was filled in the joint part of the butt | matching part 2 of the face plate glass 1. FIG.

Thus, the rib glass screen by the earthquake-proof wind-resistant structure of the rib glass screen of this invention using the MFG method was produced.
(Load test)
The load resistance test of the rib glass for evaluating the strength of the joint between the rib glass 3 and the hanging metal fitting 6 in the earthquake resistant structure and the wind and pressure resistant structure of the rib glass screen of the present invention was performed.

  In order to evaluate the strength of the joint portion between the rib glass 3 and the hanging metal fitting 6, the metal fitting 29 and the metal fitting 30 in the connection metal fitting 24 in FIG. 8 are removed, and the structural sealing material at the joint portion of the butted portion 2 is also removed. The test was performed in a state where the rib glass 3 was completely separated from the face plate glass 1.

  FIG. 9 is a schematic side view of the load resistance test of the rib glass.

  As shown in FIG. 9, a bolt 20 having a nominal diameter of M20 is used for joining the rib glass 3 and the hanging metal fitting 6. The rib glass 3 has a spacing of 500 mm in the width direction on the fixed end side and 500 mm in the length direction of the glass. Through-holes were formed so that the distance and the diagonal length were 700 mm, and four joints were provided.

  In the rib glass screen using the half rib glass produced by the MFG method as described above, the shearing force F acting per one joint portion with respect to the external force W applied in the arrow direction to the opposite end portion of the rib glass fixing end shown in FIG. Is calculated by the equation (1).

  In the load resistance test, the belt sling is hung on the connection fitting 24 located 125 mm from the lower end of the rib glass 3, the chain block is attached to the belt sling, and the belt sling is pulled by the chain block. Thus, a load was applied in the direction of the arrow shown in FIG.

  The joint force per joint can withstand a shearing force of about 61.4 kN, but the joint force varies due to variations in the axial force of the bolt 20 and relaxation of the axial force of the bolt 20. Therefore, in consideration of safety, a load resistance test was performed with a bonding force per one joint, in other words, a shear allowable force acting per one joint being 50 kN. Substituting 50 kN for F in the formula (1) and calculating the external force W at the end opposite to the fixed end of the rib glass 3 that maintains the bonding structure, W = 11.8 kN.

  Further, as shown in FIG. 9, the rib glass 3 was fastened and fixed to a pair of metal plates 9 below the suspension fitting 6 having the hinge 5 at the upper portion with high strength bolts 20 and nuts 21.

  At that time, as shown in FIG. 6, a pair of metal plates 7 made of a general structural rolled steel SS400 and having a thickness of 16 mm, using high strength bolts 20, nuts 21, plain washers 22, and plain washers 23, The upper part of the rib glass 3 was fixed so as to be an earthquake resistant structure of the rib glass screen of the present invention.

  The high-strength bolt 20 has four nominal diameters, M20, neck length 120 mm, mechanical properties, F10T, and the nut 21 has nominal diameter M20, mechanical properties, F10 Four flat washers 23 were used with a nominal diameter, M20, thickness 4.5 mm, outer diameter, 40 mm, inner diameter, 21 mm, and mechanical grade F35.

  In addition, a flat washer 22 sandwiched between the rib glass 3 and the pair of metal plates 7 so as not to directly apply a force in the bolt axis direction by tightening the high strength bolt 20 and the nut 21 to the end portion of the through hole of the rib glass 3. Nominal diameter, M30, thickness of 5.5 mm, outer diameter, 60 mm, inner diameter, 31 mm, and mechanical property grade F35 were used.

  The nut 21 was screwed into the high-strength bolt 20 and first tightened with a torque wrench with a torque of 150 N · m, and then the nut 21 was rotated 120 degrees therefrom and tightened according to the nut rotation method. The force in the bolt axial direction generated by tightening the high strength bolt 20 and nut 21 at this time was 207 kN.

  In the load resistance test shown in FIG. 9, a joint when a load W of 12 kN is applied to the opposite end to which the rib glass 3 is fixed in the direction of the arrow in FIG. 9 using a chain block (not shown). The amount of displacement in the load loading direction at the position of the high strength bolt 20 and the amount of displacement in the load loading direction of the rib glass 3 at the same height as the joint by the high strength bolt 20 are measured, and the difference is the amount of slip of the rib glass 3. As measured.

  When a load W of 12 kN is applied, the displacement amount in the load loading direction at the position of the high strength bolt 20 in the joint portion and the displacement amount in the load loading direction of the rib glass 3 at the same height as the joint portion by the high strength bolt 20 are approximately. Equally, no slip occurred. Moreover, the rib glass 3 was not damaged.

Thus, a rib glass that can withstand a load (external force) of 12 kN was obtained.
(Seismic test)
Subsequently, the seismic test for evaluating the seismic performance by the hinge 5 in the seismic structure and the seismic and wind pressure structure of the rib glass screen of the present invention was performed.

  The lower part of the sash frame 25 was moved to be 81 mm, which is 1/100 of the height of the face plate glass 1, and horizontal to the face plate glass 1, and the lower part of the rib glass screen was moved to distort the rib glass screen. That is, the generated stress of the face plate glass 1 and the rib glass 3 when the interlayer displacement was 81 mm was measured. This inter-layer displacement corresponds to a seismic intensity of 7.

  The measurement position of the generated stress was set to the height of the face plate glass 1 and the rib glass 3, 2400 mm, 5250 mm, and 8100 mm with the position of the lower side of the face plate glass 1 as a reference (0 mm).

  Table 1 shows the horizontal movement amount difference which is the interlayer displacement amount difference between the face plate glass 1 and the rib glass 3 (horizontal movement amount of the face plate glass 1−horizontal movement amount of the frib glass 3).

The horizontal movement amount difference was 2.4 mm at the maximum, which was a deviation of 3% with respect to the movement amount of the lower sash frame 25 of 81 mm. This is a sufficiently acceptable value for the rib glass screen in this example. Further, the tensile stress generated in the rib glass 3 was less than 1 MPa at maximum (10 kgf / cm ² ), which was a value sufficiently lower than the allowable strength of the tempered glass.

  Next, the lower sash 25 was moved ± 81 mm horizontally with the face plate glass 1 in a cycle of 7 seconds, and vibration was continuously applied to the rib glass screen for 10 minutes. During and after the test, the rib glass screen was not damaged, and it was confirmed that the earthquake resistant structure and the earthquake resistant wind pressure structure of the rib glass screen of the present invention can withstand the vibration.

  In the conventional rib glass screen, since the rib glass 3 is suspended and fixed to the upper casing 4, the rib glass 3 is restrained by the upper casing 4, and cannot follow the movement of the face plate glass 1. There was a possibility that the movement of the face plate glass 1 and the rib glass 3 is shifted, the rib glass 3 is locally deformed, and the rib glass 3 is broken.

  However, in the seismic structure of the rib glass screen of the present invention, the hinge 5 is provided on the hanging metal fitting 6 so that even if the face plate glass 1 moves due to the interlayer displacement, the rib glass 3 has the hinge axis of the hinge 5 as the rotation center. Is movable in an arc shape in the in-plane direction of the face plate glass 1, so that when an earthquake or the like occurs, the rib glass 3 moves following the face plate glass 1 even if the face plate glass 1 and the rib glass 3 are displaced. For this reason, the rib glass 3 can be prevented from being damaged without the S-shaped rib glass 3 being extremely deformed.

Furthermore, the displacement suppression member 10 for suppressing the vibration of the face plate glass 1 in the out-of-plane direction as much as possible is arranged in parallel with the hanging metal fitting 6 so that the face plate glass 1 is shaken in the out-of-plane direction due to the S wave during strong earthquake. Is suppressed, and the vibration of the rib glass screen is suppressed from being amplified by the S wave.
(Wind pressure test)
Next, a wind pressure test was conducted using a large curtain wall performance test apparatus, and the wind pressure performance of the rib glass screen was evaluated by the earthquake resistant wind pressure structure of the rib glass screen of the present invention.

  That is, the joint sealing material is filled in the joint portion of the abutting portion 2, the metal fitting 29 and the metal fitting 30 in the connecting metal fitting 24 are joined, and the face plate glass 1 and the rib glass 3 are joined as shown in FIG. Went. Further, as shown in FIG. 4A, in order to confirm the wind pressure resistance performance of the rib glass screen by the displacement suppressing member 10 provided in parallel with the hanging metal fitting 6, the bolt 17 in FIG. 5 is rotated to suppress the displacement. The end of the cylindrical member 13 inside the member 10 was brought into contact with the sliding surface of the sliding member 11, and the wind resistance test of the rib glass screen was performed.

  As described above, the wind pressure resistance test of the rib glass screen is performed by connecting the face plate glass 1 and the rib glass 3 by the structural sealing material and the connection fitting 24 of the joint portion of the butt portion 2, and a pair of the hinge bracket 6 below the hinge 5. This was performed in a state where the end of the columnar member 13 in the displacement suppressing member main body 16 welded and fixed to the metal plate 12 was brought into contact with the sliding surface of the sliding member 11 fixed to one side of the metal plate 7.

The rib glass screen is designed so that the wind-proof pressure is 2158 Pa (about 220 kg / cm ² ), and the wind pressure of 2158 Pa is applied in the out-of-plane direction indoor side of the face plate glass 1, that is, in the positive pressure direction. The amount of displacement to the wall, that is, the displacement toward the indoor side, and the generated stress inside the face plate glass 1 were measured. The measurement was performed at the edge portion of the surface glass having a height of 1250 mm from the lower sash frame 25 in the middle between the lower sash frame 25 and the connection fitting 24.

  FIG. 10 is a graph showing the measurement results of the displacement amount of the face plate glass with respect to the positive wind pressure in the present example. The vertical axis is the displacement (mm), and the horizontal axis is the wind pressure (Pa). The smaller the displacement relative to the positive wind pressure, the better the wind pressure resistance.

As shown in the graph of FIG. 10, the amount of displacement increased in proportion to the increase in the wind pressure, but the amount of displacement of the face plate glass 1 when the wind pressure in the positive pressure direction of 2158 Pa was applied is within the allowable range. It was 8 mm. This is a value smaller than the allowable range of the displacement amount of the face plate glass 1 calculated from the physical properties of the float glass in the rib glass screen in this example. This is a result of the displacement suppressing member 10 having a function of suppressing the minute rotation of the rib glass caused by the presence of a minute space in the hinge 5.
FIG. 11 is a graph showing a measurement result of stress generated in the face plate glass in the example. The vertical axis is stress (MPa) and the horizontal axis is wind pressure (Pa). The smaller the generation of stress against the wind pressure, the better the wind pressure resistance.

The maximum value of the tensile stress generated on the opposite surface (inner side surface) of the face plate glass 1 when a wind pressure of 2158 Pa is applied is 17 MPa, which is lower than the allowable strength of the float glass of 17.7 MPpa and within the allowable range. . As described above, a large rib glass screen that can withstand wind pressure of 2158 Pa was obtained by using the earthquake-resistant wind-resistant structure of the rib glass screen of the present invention in which the displacement suppressing member 10 is arranged in parallel on the pair of metal plates 7 below the hinge 5. .
( Reference example )
(Wind pressure test)
In the wind resistance test of the example, the wind pressure test was performed in the same manner as in the example except that the displacement suppressing member 7 was removed from the seismic wind resistance structure of the rib glass screen of the present invention.

When the displacement suppressing member 7 was removed and the wind pressure resistance test was performed, the displacement of the face plate glass 1 in the out-of-plane direction was large and the face plate glass 1 might be damaged. Therefore, the test was stopped at a wind pressure of 1079 Pa. FIG. 12 is a graph showing measurement results of displacement of the face plate glass with respect to the wind pressure in the positive pressure direction in the reference example .

When the displacement amount of the face plate glass 1 in the rib glass screen when the wind pressure is applied at 1079 Pa is compared, as shown in FIG. 11, the rib glass screen of the example using the displacement suppression member 10 was 19.6 mm. As shown in FIG. 12, in the rib glass screen of the reference example from which the displacement suppressing member 7 was removed, a displacement of 31.9 mm occurred.

Further, the displacement of the face plate glass with respect to the wind pressure in the positive pressure direction is different from the rib glass screen of the embodiment using the displacement suppressing member 7, and the rib glass screen of the reference example with the displacement suppressing member 10 removed has a low wind pressure of about 200 Pa. After that, there was a sudden increase, followed by a gradual increase with increasing wind pressure. This is because the displacement suppression member 10 is removed, and even at a wind pressure as low as about 200 Pa, there is a minute gap existing between the cylinder of the hinge 5 and the hinge rod, so that the upper part of the rib glass 3 is in the in-plane direction. Rotate slightly. Even if the upper part of the rib glass 3 is slightly rotated, a large displacement proportional to the length of the rib glass 3 occurs at the lower part of the rib glass 3. As a result, a large displacement in the out-of-plane direction occurred in the face plate glass 1 joined to the rib glass 3.

(A) is a front view of an example of the earthquake-resistant structure of the rib glass screen of this invention. (B) is a side view of an example of a seismic structure of the rib glass screen of the present invention. (A) is an enlarged front view of an example of the seismic structure of the rib glass screen of the present invention. (B) is the enlarged view which showed the side surface of an example of the earthquake-resistant structure of the rib glass screen of this invention in the cross section. (A) is a front view of an example of the earthquake-proof wind-resistant structure of the rib glass screen of this invention. (B) is a side view of an example of the earthquake-resistant wind-resistant structure of the rib glass screen of the present invention. (A) is an enlarged front view of an example of the earthquake-resistant wind-resistant structure of the rib glass screen of the present invention. (B) is the enlarged view which showed the side surface of an example of the earthquake-proof wind-proof structure of the rib glass screen of this invention in the cross section. It is an enlarged surface plan view of an example of a displacement suppression member. It is an expanded sectional view of the joined part of a hanging metal fitting and a rib glass. (A) is a longitudinal cross-sectional view of an example of the attachment structure of the face plate glass of the earthquake-resistant wind-resistant structure of the rib glass screen of this invention, and is the attachment structure of the upper end part of face plate glass. (B) is a longitudinal cross-sectional view of an example of the face plate glass attachment structure of the earthquake-proof wind-resistant structure of the rib glass screen of this invention, and is the attachment structure of the lower part of face plate glass. (A) is a front view at the time of joining with the joining metal fittings of face plate glass and rib glass. (B) is a side view at the time of joining face plate glass and rib glass with a joining metal fitting. It is a schematic side view of the load resistance test of rib glass. It is a graph of the displacement amount measurement result of the face plate glass with respect to the wind pressure of the positive pressure direction in an Example. It is a graph of the measurement result of the stress which generate | occur | produced in the face plate glass with respect to the wind pressure of the positive pressure direction in an Example. It is a graph of the displacement amount measurement result of face plate glass to the wind pressure of the positive pressure direction in a reference example .

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Face plate glass 2 Butt | matching part 3 Rib glass 4 Upper housing 5 Hinge 6 Hanging metal fitting 7 Metal plate 8 Bolt 9 Nut 10 Displacement suppression member 11 Sliding member 12 Metal plate 13 Cylindrical member 14 Metal base 15 Bolt 16 Displacement suppression member main body 17 Bolt 18 Hard ball bearing 19 Nut 20 Bolt 21 Nut 22 Flat washer 23 Flat washer 24 Connection fitting 25 Sash frame 26 Setting block 27 Backup material 28 Water seal material 29 Metal fitting 30 Spacer 31 Metal fitting 32 Cylindrical metal fitting 33 Connection plate 34 EPDM collar 35 Spacer

Claims (9)

Rib glass is erected on one or both sides of the face plate glass butt to be perpendicular to the face plate glass, the structural joint material is filled in the joint area of the butt, and the face glass is supported by the rib glass and suspended. In the rib glass screen in which the rib glass is suspended from the upper housing through the metal fittings,
The upper housing for suspending the rib glass is fixed to the upper part of the hanging metal fitting provided with the hinge parallel to the rib glass,
Join the rib glass to the bottom of the hanging bracket,
Rib glass is hung on the upper frame,
The rib glass can swing around the hinge ,
A pair of metal plates and rib glass at the lower part of the hanging metal fitting are provided with through holes, and the stress generating member having a through hole with an inner diameter larger than the diameter of the through hole provided in the rib glass is made concentric with each through hole. The force generated by tightening the pair of fastening members inserted between the suspension fitting and the rib glass and the individual through holes and the stress generation member is passed through the stress generation member sandwiched between the suspension fitting and the rib glass. An earthquake-resistant structure of a rib glass screen, wherein the suspension glass and the rib glass are joined by generating a compressive stress inside the rib glass at a site where the stress generating member contacts with the rib glass.   The earthquake resistant structure for a rib glass screen according to claim 1, wherein a lower part of the hanging metal fitting is made of a pair of metal plates and is joined in a state of sandwiching the upper part of the rib glass.   The seismic structure of the rib glass screen according to claim 1 or 2, wherein the displacement suppressing member is arranged in parallel with the hanging metal fitting.   The seismic and wind / pressure structure for rib glass screen according to claim 3, wherein the displacement suppressing member has a function of adjusting a gap with a sliding surface of a sliding member provided at an end of the hanging metal fitting. 5. The earthquake resistant structure for a rib glass screen according to claim 4 , wherein the stress generating member is a flat washer, and the pair of fastening members is a bolt and a nut. 6. The earthquake resistant structure for a rib glass screen according to claim 5 , wherein a force generated by tightening the bolt and nut is 60 kN or more and 300 kN or less. A bolt and nut hex bolts and nuts, seismic structural ribs glass screen according to claim 5 or claim 6, characterized in that to reduce the inner diameter of the flat washer than the outer diameter of the head nut bolts. The rib glass screen which has the earthquake-resistant structure of the rib glass screen of any one of Claim 1 or Claim 2, Claim 5 thru | or 7 .   The rib glass clean which has the earthquake-proof wind-resistant structure of the rib glass screen of Claim 3 or Claim 4.

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