JP3825776B2 - Seismic isolation structure of glass plate - Google Patents

Description

  The present invention relates to a technique for preventing a glass plate from being damaged by an earthquake or strong wind in a glass curtain wall in which the glass plates are continuously provided.

2. Description of the Related Art Conventionally, as a glass curtain wall in which glass plates are continuously provided, there is a structure in which an edge portion of a glass plate is sandwiched between a vertical and a pressing edge (for example, see Patent Document 1). In a glass curtain wall with this structure, there is a risk that the edge of the glass plate will collide with the ledge when the glass plate is supported by a strong wind or earthquake, and the edge will collide with the ledge. In order to avoid this, it is known to provide a seismic isolation structure that allows a certain amount of lateral movement of the glass plate by providing a predetermined clearance between the edge of the glass plate and the pressing edge. Yes.
Japanese Patent Laid-Open No. 7-292824

  However, in the conventional seismic isolation structure of the glass plate as described above, the vibration of the glass plate can be absorbed only by the clearance provided between the edge of the glass plate and the pressing edge. It was hard to say that it was possible to demonstrate a seismic isolation property. On the other hand, it is conceivable that the clearance is set to be large in order to improve the vibration isolation, but in this case, the width of the pressing edge is inevitably increased, and the area occupied by the glass plate is reduced in appearance. There was a problem that the appearance deteriorated.

  The present invention was invented in view of the conventional problems as described above, and after securing a good appearance using a pressing edge with a small width dimension, can exhibit sufficient vibration isolation properties, The object is to provide a seismic isolation structure for glass plates.

  In order to solve the above problems, the vertical member 4 connected to the vertical 1 is arranged on the outdoor side of the vertical 1 in which a plurality of the present invention is installed, and the vertical member 4 is sandwiched on the outdoor side. A pressing edge 5 having a substantially T-shaped cross section composed of a piece 5b and a connecting piece 5a projecting from the central portion of the sandwiching plate 5b is arranged in a state where the connecting piece 5a is connected to the vertical member 4. It is the structure which clamped the left-right direction edge part of the glass plate G between the clamping piece 5b and the vertical member 4, Comprising: Between the left-right direction edge part of the glass plate G, and the connection piece 5a of the pushing edge 5, A clearance C that allows the glass plate G to move in the left-right direction is provided. The connecting member 3 is fixed to the vertical 1 so as to protrude toward the outdoor side, and the connecting member 3 and the vertical member 4 are within a predetermined range. By connecting in a slidable manner to the left and right, the stand 1 and the vertical member 4 are slidable to the left and right via the connecting member 3. And those characterized in that ligated.

  By doing in this way, even when the vertical 1 is bent due to an earthquake or the like, the horizontal displacement of the vertical 1 due to the bending is caused by the horizontal slide of the vertical 1 with respect to the vertical member 4. Can be absorbed. Further, even when a large displacement in the left-right direction occurs in the glass plate G with respect to the vertical 1 due to an earthquake or the like, the displacement of the glass plate G is reduced by the clearance C between the glass plate G and the pressing edge 5. In addition to absorbing, the vertical member 4 itself holding the glass plate G together with the pressing edge 5 slides in the left-right direction with respect to the vertical 1, and consequently absorbs the displacement of the glass plate G in a large range. It is something that can be done. And since it is not necessary to use a thing with a large width dimension as the pressing edge 5 in order to set it as the seismic isolation structure which has sufficient vibration isolation in this way, a favorable appearance can be ensured.

  Moreover, it is also preferable that the vertical member 4 is connected to the stand 1 through the connecting member 3 in a non-contact manner. By doing in this way, even if the vertical member 4 and the connecting member 3 are dissimilar metals such as aluminum and steel, it is possible to prevent deformation and breakage due to the difference in thermal expansion between the dissimilar metals. Therefore, reliability is improved.

  In the seismic isolation structure, the hollow vertical member 4 is provided with an opening 13 into which the connecting member 3 protruded from the stand 1 is movably inserted, and the opening 13 in the vertical member 4 is provided. It is also preferable to provide a slide space S in which the flange portion 3c extending in the left-right direction from the tip of the connecting member 3 is slidably fitted in the portion communicating with the connecting member 3. By doing in this way, the connection member 3 is reliably guided in the left-right direction by the sliding contact with the periphery in the slide space S of the flange part 3c formed in the front-end | tip. Furthermore, when the connecting member 3 hits both the left and right ends of the opening portion 13 and the flange portion 3c of the connecting member 3 hits the left and right ends of the slide space S, the moving range of the connecting member 3 in the left-right direction is surely restricted. It is what is done.

  Further, the above-described hollow vertical member 4 is formed by sandwiching the intermediate member 10 between the pair of left and right halves 8 and 9 and fixing the intermediate member 10 to each other. It is also preferable that the space surrounded by the side surface is the slide space S in which the flange portion 3 c of the connecting member 3 is fitted in the vertical member 4. By doing in this way, in assembling the vertical member 4, it is only necessary to attach the pair of halves 8 and 9 from the left and right sides of the intermediate member 10, thereby improving the workability.

  Further, in the above-mentioned seismic isolation structure, a plurality of flats that are spanned between adjacent vertices 1 and spanned between the stanchions 1 are connected to the plain 2 that supports the vertical edge of the glass plate G. The upper member 30 is fitted to a seamless engagement portion 32 that protrudes from the bar 31 to the outdoor side, and the lower member 40 is fixed to the upper member 30 and covers the lower portion of the seamless engagement portion 32. It is also preferable to provide a clearance C ″ that allows the upward movement of the seamless mesh 2 between the seamless locking portion 32 and the lower member 40. By doing so, it is possible to make the seamless mesh 2 by an earthquake or the like. On the other hand, even when the glass plate G is lifted, the upward displacement of the glass plate G is caused by the clearance C ″ between the lower member 40 and the seamless locking portion 32. By moving upward, it absorbs without problems. Further, when assembling the seamless 2, it is only necessary to assemble the upper member 30 and the lower member 40 from both the upper and lower sides of the predetermined seamless engagement portion 32 and fix both 30 and 40, thereby improving the workability. It is.

  The present invention has an effect that sufficient vibration isolation can be exhibited after securing a good appearance using a pressing edge having a small width dimension.

  An example of a glass curtain wall according to an embodiment of the present invention includes a plurality of vertical walls 1 standing in a left-right direction with a predetermined interval, and a plurality of meshes 2 spanned between the adjacent vertical walls 1. A large number of glass plates G are arranged in a row vertically and horizontally by fitting the glass plate G into a lattice-like frame forming the main body. 1 to 3 show a seismic isolation structure that absorbs the vibration in the horizontal direction of the glass plate G in the glass curtain wall of this example. The vertical 1 in this example is a flat bar made of steel having a rectangular cross section, and a hollow vertical member 4 is provided on the outdoor side of the vertical 1 via a connecting member 3 protruding from the vertical 1. It is connected to slide left and right. And the front end side of the connecting piece 5a of the pressing edge 5 having a substantially T-shaped cross section is connected to the outdoor side of the vertical member 4, and the glass plate G is interposed between the vertical member 4 and the holding piece 5b of the pressing edge 5. It is the structure which clamps the edge part of the left-right direction. A clearance C is provided between the edge of the sandwiched glass plate G in the left-right direction and the connecting piece 5a of the pressing edge 5. The clearance C allows the glass plate G to move in the left-right direction within a predetermined range. In addition, as described above, the vertical member 1 and the vertical member 4 are connected to each other so as to be slidable in the left and right directions within a predetermined range. It has a structure that exhibits sufficient vibration isolation in the left-right direction after securing a good appearance without using it.

  In the following, a more detailed configuration of the seismic isolation structure will be described. First, the connecting member 3 of this example includes a base portion 3a fixed to the outdoor surface of the stand 1 and a center in the left-right direction of the base portion 3a. It is formed by a projecting portion 3b extending toward the outdoor side and a flange portion 3c extending in the left-right direction from the tip of the projecting portion 3b, and an adjustment liner 7 is provided between the vertical 1 and the base portion 3a. By fixing the stand 1 and the base portion 3a with the fixing bolt 6 in a state where the pin is sandwiched, the entire connecting member 3 is fixed to the stand 1 so as to protrude to the outdoor side.

  The vertical member 4 abuts a pair of left and right halves 8 and 9 having a substantially U-shaped cross section so that the opening sides of the half halves 8 and 9 face each other and are in the middle of each other. The members 10 are sandwiched, and in this state, the half bodies 8 and 9 and the intermediate member 10 are fixed by the fixtures 14 and 15, respectively. Projecting pieces 8a and 9a project from the opposing portions of the inner side surfaces of the half bodies 8 and 9, respectively, and the inside of the vertical member 4 with the projecting pieces 8a and 9a as a boundary is an indoor space 27 and an outdoor space 28. It is divided into and. In the assembled state, the edges of the projecting pieces 8a and 9a are opposed to each other in the left-right direction through a predetermined gap, and this gap portion is formed over the entire length of the vertical member 4 so that the indoor side space 27 and the outdoor side A slit-shaped opening 11 is formed to communicate with the space 28. Furthermore, in the assembled state of the vertical member 4, the edges 8c, 9c facing each other on the indoor side and the edges 8d, 9d facing each other on the outdoor side of the halves 8, 9 having a substantially U-shaped cross section are: Each is opposed to the left and right through a predetermined gap, and the gap between the indoor side edges 8c and 9c is formed over the entire length of the vertical member 4 to move the connecting member 3 into the vertical member 4. It becomes a slit-like opening 12 to be freely inserted, and the gap between the outdoor side edges 8d and 9d is formed over the entire length of the vertical member 4, and the connecting piece 5a of the pushing edge 5 is inserted into the vertical member 4. A slit-like opening 13 is formed. The intermediate member 10 is fixed in the outdoor side space 28 of the vertical member 4, and in this fixed state, the side surface 16 facing the indoor side of the intermediate member 10 and the projecting pieces 8 a and 9 a of both halves 8 and 9. The side surfaces 17 and 18 facing the outdoor side are positioned in parallel indoors and outdoors with a predetermined gap. Then, the connecting member 3 in which the space surrounded by the side surface 16 on the intermediate member 10 side and the side surfaces 17 and 18 on the half bodies 8 and 9 side is movably inserted from the indoor space 27 through the opening 11. This is a slide space S in which a flange portion 3c extending in the left-right direction from the tip of the slidably fits within a predetermined range. The intermediate member 10 is not only connected to the respective half bodies 8 and 9 by insertion of the fixtures 14 and 15 from the outdoor side, but also engaging pieces 10b extending in both the left and right directions of the intermediate member 10. 10c and the engaged pieces 8b and 9b extending at opposite positions on the side surfaces of both halves 8 and 9 are also connected.

  A recess 10 d is formed in the intermediate member 10 so as to open toward the outdoor side, and the recess 10 d is positioned so as to communicate with the slit-shaped opening 13 of the vertical member 4. Moreover, the to-be-latched part 20 which the pair of latching piece 19 which protruded in the left-right direction from the front-end | tip part of the connection piece 5a of the pressing edge 5 latches is provided in the inner surface of the recessed part 10d. Then, by locking the locking piece 19 to the locked portion 20, the pressing edge 5 is connected to the vertical member 4, and in this state, the pressing edge 5 is arranged on the outdoor side of the vertical member 4 and the holding piece 5 b of the pressing edge 5 is held. A sealing material 21 having elasticity and adhesiveness between a side surface facing the indoor side and a side surface facing the outdoor side of the vertical member 4 (that is, side surfaces 22 and 23 facing the outdoor side of the half bodies 8 and 9). The edge part of the left-right direction of the glass plate G is clamped through.

  According to the vibration-isolating structure having the above structure, even when the horizontal 1 is bent in the vertical 1 due to an earthquake or the like, the horizontal displacement of the vertical 1 due to the bending is reduced with respect to the vertical member 4. The vertical 1 is absorbed by sliding in the left-right direction within a predetermined range [see FIGS. 2A and 2B]. Further, when the glass plate G rotates due to the interlayer displacement, a difference occurs between the inclination angle of the vertical direction 1 and the inclination angle of the glass plate G, and this causes the glass plate G to partially move horizontally with respect to the vertical direction 1. However, even in this case, the displacement of the glass plate G is absorbed by the clearance C between the pressing edges 5 and the pressing edges 5 and the vertical members 4 that sandwich the glass sheets G are used. The displacement is absorbed by sliding in the same direction as the displacement direction of the glass plate G with respect to the upright 1. In other words, in addition to the clearance C, the glass plate G can be moved in the left-right direction with respect to the vertical 1 by the amount of sliding of the vertical member 4 and the pressing edge 5 to absorb the displacement [FIG. (See (c)).

  3A to 3C show the procedure for mounting the above seismic isolation structure. As shown in FIG. 3A, first, the connecting member 3 is bolted to the outdoor side of the vertical 1 via an appropriate number of adjusting liners 7, and is fixed to the vertical 1 in this way toward the outdoor side. One half body 9 which has already been fixed to the intermediate member 10 at the factory using the fixture 15 is inserted into the protruding connection member 3 from the left and right direction (from the right side in the figure). 3B, the side surface 16 facing the indoor side of the intermediate member 10 and the side surface 18 facing the outdoor side of the projecting piece 9a of the half body 9 respectively contact the flange portion 3c of the connecting member 3. The intermediate member 10 and the half member 9 are inserted to a predetermined position where they come into contact, and the vertical guide 1 and the intermediate member 10 are positioned by the positioning guide 25, and further, from the opposite side of the side where the half member 9 is inserted (in the drawing) The other half 8 is inserted into the intermediate member 10 (from the left side). When the side surface 17 of the projecting piece 8a of the half body 8 is inserted to a predetermined position where it contacts the flange portion 3c of the connecting member 3, the engaging piece 10b of the intermediate member 10 is engaged with the engaged piece 8b of the half body 8. The half body 8 is temporarily fixed to the intermediate member 10. In this state, the vertical member 4 can be assembled by inserting the fixture 14 from the outdoor side and permanently fixing the half body 8 and the intermediate member 10, and at this time, the flange of the connecting member 3 in the vertical member 4. The portion 3c has a side surface facing the outdoor side that is in sliding contact with the side surface 16 of the intermediate member 10, and a side surface facing the indoor side is in sliding contact with the side surfaces 17 and 18 of the pair of half pieces 8 and 9a. It is held slidably in the left-right direction. A positioning guide 24 similar to the positioning guide 25 is applied to the half body 8 side, and the stand 1 and the vertical member 4 are normally held stationary by the positioning guides 24 and 25. Next, as shown in FIG.3 (c), the edge part of the left-right direction of the glass plate G is distribute | arranged to the outdoor side of the vertical member 4, and the pushing edge 5 is connected to the connection piece from the outdoor side further than this glass plate G. 5a is inserted so that the front end side of the vertical member 4 is inserted into the opening 13 of the vertical member 4, and the edge in the left-right direction of the glass plate G is interposed between the sandwiching piece 5b of the pressing edge 5 and the vertical frame member 4 via the sealing material 21. In a state in which the pressing piece 5 is held, the pressing edge 5 and the vertical member 4 are connected by the locking of the locking piece 19 to the locked portion 20. The positioning guides 24 and 25 may be removed after the sealing material 21 is cured, and the seismic isolation of this example that supports the horizontal edge of the glass plate G and absorbs the horizontal vibration of the glass plate G by the above procedure. The structure is one that is normally mounted stationary.

  Note that both the opening portion 11 formed inside the vertical member 4 and the opening portion 12 formed so as to open toward the indoor side have the flange portions 3c of the connecting portion 3 at both ends in the left-right direction in the slide space S. Then, the connecting member 3 just hits the opening edge, and the right and left slide of the connecting member 3 is restricted together with the slide space S [see FIG. 2 (c)]. That is, the connecting member 3 of this example is guided in the horizontal direction by sliding contact with the intermediate member 10 and the half halves 8 and 9 in the slide space S, and the range of movement in the horizontal direction is slid. The space S and the openings 11 and 12 are surely restricted by contact with both left and right ends. The vertical member 4 and the connecting member 3 are made of aluminum, whereas the vertical member 1 is made of steel. In this example, the vertical member 4 and the vertical member 1 which are different metals are provided in a non-contact manner. Since the vertical member 4 and the connecting member 3 which are the same kind of metal are slidably brought into contact with each other, even if frictional heat is generated by sliding the connecting member 3 left and right, deformation due to a difference in thermal expansion between different metals. And the occurrence of breakage is prevented, and the reliability is high.

  4 to 9 show a seismic isolation structure that absorbs vertical vibrations of the glass sheet G in the glass curtain wall of this example. As shown in FIG. 4, the mesh 2 in this example has a predetermined range on the mesh-locking portion 32 projecting outward from the steel flat bar 31 that is installed between the adjacent vertical walls 1. It is locked so as to be freely movable upward. The vertical 1 and the flat bar 31 are connected via a bracket 26. The seamless 2 of this example is mainly composed of an upper member 30 fitted to the seamless locking portion 32 and a lower member 40 fixed to the upper member 30 and covering the lower side of the seamless locking portion 32. It is composed. On the indoor half of the upper member 30, there are a locking recess 30a fitted to the upper end portion of the seamless locking portion 32, and a protrusion that abuts the side surface of the lower end portion of the seamless locking portion 32 facing the outdoor side. And the upper concave portion 33 opened upward to hold the lower edge of the upper glass plate G in the outdoor half of the upper member 30 and the lower portion of the upper member 30 In order to hold the upper edge of the glass plate G, a lower recess 34 opened downward is provided. A setting block 35 is disposed on the inner bottom surface of the upper recess 33, and the lower edge of the glass plate G arranged on the setting block 35 is elastic and adhesive from both the indoor and outdoor sides in the upper recess 33. It is sandwiched via a sealing material 36 having In the lower recess 34, the upper end edge of the glass plate G is placed indoors and outdoors with a predetermined clearance C ′ provided between the upper end edge of the glass plate G and the inner bottom surface of the lower recess 34. It is clamped from both sides via a sealing material 36. A part of the inner side surface of the lower recess 34 is constituted by a side surface of the lower member 40 fixed to the upper member 30, and the lower member 40 fixed to the upper member 30 and the blind engagement portion 32 in this way. Is provided with a predetermined clearance C ″. Further, on the outdoor side of the seamless upper member 30, a decorative plate 39 is pulled on a locking piece 38 protruding from the upper member 30. In the figure, 45 is dew condensation and 46 is a drainage notch.

  According to the vibration isolating structure having the above configuration, even when the glass plate G is inclined due to an interlayer displacement due to an earthquake or the like, the glass plate G is displaced upward in the portion where the glass plate G is lifted due to the inclination. Is absorbed by the clearance C ′ between the upper edge of the glass plate G and the upper member 30 of the mesh 2 [see FIGS. 5A and 5B], and the upward displacement is the clearance C ′. Even after the upper edge of the glass plate G hits the upper member 30 after reaching the minute, the whole of the mesh 2 is lifted by the clearance C ″ between the lower member 40 and the seamless locking portion 32. The displacement is absorbed [see FIG. 5 (c)].

  FIGS. 6A to 6D show the procedure for attaching the seismic isolation structure. As shown in FIG. 6A, first, the upper member 30 is inserted from above into the seamless engagement portion 32, and the engagement recess 30 a of the upper member 30 that opens downward is formed at the upper end of the seamless engagement portion 32. In addition, the positioning member 30b of the upper member 30 is brought into contact with the seamless locking portion 32 from the outdoor side, thereby positioning the upper member 30 in the vertical direction and indoor / outdoor direction. Further, at this time, by fitting a slip-off preventing pin 42 (see FIG. 9) protruding from the intermeshing locking portion 32 into the notch 41 recessed in the positioning portion 30b of the upper member 30, The member 30 is positioned in the left-right direction. Then, as shown in FIG. 6B, the lower member 40 is inserted from below into the upper member 30 placed on the seamless locking portion 32 as described above, and a part of the lower member 40 is seamlessly locked. The lower member 40 and the upper member 30 are fixed by inserting the fixture 43 from the outdoor side in a state of covering the lower portion of the portion 32. Next, as shown in FIGS. 6 (c) and 6 (d), the lower edge of the upper glass plate G placed on the setting block 35 in the upper recess 33 of the upper member 30 is sandwiched through the sealing material 36. In addition, the upper edge of the lower glass plate G is sandwiched through the sealing material 36 in the lower recess 34, and a decorative plate 39 is inserted into the upper member 30 from the upper side on the outdoor side. The decorative plate 39 is locked to the locking piece 38 of the upper member 30 so as to hide substantially the entire 2 from the outdoor side. In the seamless 2 of this example, the side wall portion 44 on the outdoor side that forms the lower recess 34 of the upper member 30 is a separate member and is integrated by insertion locking from below. After fixing the lower member 40 by easily inserting the fixture 43 from the outdoor side without attaching the portion 44, the side wall portion 44 is attached to complete the lower recess 40 of the upper member 30 [FIG. (See (c)), the lower glass plate G may be sandwiched.

As the invisible 2 in this example, the one having the same length as the distance between adjacent vertices 1 may be used, and as shown in FIG. It may be formed by using a pair of left and right invisible divided bodies 50 having a substantially half length. Here, the transom divided body 50 is of the same structure as the transoms 2 already described. And by setting it as the vibration isolation structure using the mesh 2 which consists of this left-right paired seamless segment 50, when the glass plate G inclines by interlayer displacement, the lower glass plate G will float by the inclination In this case, the upper glass plate G is lifted upward, so that the load on the upper glass plate G is not applied. Even if it floats beyond the clearance C ′, the invisible divided body 50 smoothly moves upward to absorb the displacement. Further, in the invisible divided body 50 on the opposite side to the side on which the glass plate G floats, the load on the upper glass plate G is applied, but the lower glass plate G hardly lifts up, so the displacement of the lower glass plate G Can be absorbed by the clearance C 'between the jointless divided body 50 or by a slight movement upward of the jointless divided body 50 itself in addition to the clearance C'. The decorative board 39 has a length dimension equivalent to the distance between the adjacent vertices 1 and is locked to both of the pair of invisible divided bodies 50 so as to be movable upward. Since it is urged downward by the leaf springs 52 respectively arranged between it and the body 50, when one of the invisible divided bodies 50 moves upward as described above, the entire space between the adjacent vertical bodies 1 is In this case, both the invisible divided bodies 50 are concealed with a gentle inclination.

  FIG. 9 shows a state in which vibrations in the vertical and horizontal directions of the glass plate G are absorbed in the seismic isolation structure of this example. When an interlayer displacement due to an earthquake or the like occurs in the glass curtain wall in the normal stationary state shown in FIG. 9A, the horizontal deflection of the vertical 1 as shown by the arrow A1 in FIG. 9B and the arrow A2 As shown in FIG. 9C, the horizontal displacement of the glass plate G with respect to the vertical 1 as shown in FIG. 9 and the upward displacement of the glass plate G with respect to the invisible 2 as shown by the arrow A3 are combined. Overall displacement occurs. The deflection shown by the arrow A1 is greatly generated in the vertical center portion of the vertical 1 due to vibration, and the horizontal displacement of the glass plate G shown by the arrow A2 is caused by the glass plate G, for example, the arrow R in the figure. When tilting by rotating in the direction, a difference in inclination angle is produced between the vertical 1 and the upper and lower ends of the vertical 1, and the glass plate G indicated by the arrow A3 is displaced upward. Is largely generated in the left and right one side portions (one of the undivided divided bodies 50) of the invisible 2 as the glass plate G rotates in the direction of the arrow R. By providing the seismic isolation structure of this example against such various displacements, the left and right slide between the vertical member 4 of the vertical 1 and the bending of the vertical 1 shown by the arrow A1 is provided. And the displacement in the left-right direction with respect to the vertical 1 of the glass plate G indicated by the arrow A2 is the clearance C between the glass plate G and the connecting piece 5a of the pressing edge 5 or between the vertical 1 and the vertical member 4. Further, the upward displacement of the glass plate G indicated by the arrow A3 is further absorbed by the clearance C ′ between the glass plate G of the invisible 2 (mainly one of the invisible divided bodies 50), and The clearance C ″ can be absorbed by the upward movement of the mesh 2 itself. Therefore, in the seismic isolation structure of this example, the glass plate G collides with the ledge 5 or the mesh 2 and breaks. Is highly prevented, and When forming the seismic isolation structure, the pair of halves 8 and 9 are connected so as to be fitted from both the left and right sides, and the vertical member 4 is assembled, or the upper member 30 and the lower member 40 are fitted from both the upper and lower sides. It can be performed by a simple construction method such as connecting and assembling the intangible 2. The intangible 2 is not limited to the one in which the invisible 2 itself can move upward as described above. The mute 2 itself may have a structure that hardly moves up and down.

  FIG. 10 shows a joint portion between the vertical member 4 that supports the edge in the left-right direction of the glass plate G and the joint 2 that supports the edge in the vertical direction of the glass plate G. Instead of placing a wet seal, it is preferable to dispose a silicon sponge 60 on the vertical member 4 side and the invisible 2 side as shown. When a wet seal is placed on the joint, there is a risk of breakage due to the movement of the vertical member 4 or the mesh 2 but by using a non-seal with the silicon sponge rubber 60 there is no risk of breakage and reliability is improved. To do.

  In addition, the seismic isolation structure of the glass plate G of this example is not limited to the glass curtain wall in which a large number of glass plates G are arranged in the vertical and horizontal directions as described above, and can be widely applied as a seismic isolation structure of a general glass plate G. Of course.

It is a cross-sectional view which shows the seismic isolation structure of the left-right direction especially among the seismic isolation structures of the glass plate of an example in embodiment of this invention. It is a cross-sectional view for explaining the seismic isolation structure of the above, (a) is normally stationary, (b) is when the vertical deflection occurs, (c) is when the lateral displacement occurs in the glass plate ing. It is explanatory drawing which shows the construction procedure of a seismic isolation structure same as the above, (a) is a stage until the half body of one side of a vertical member is attached, (b) is a stage until a positioning guide is attached, (c) is a ledge. It shows the stage until installation. It is a longitudinal cross-sectional view which shows the seismic isolation structure of an up-down direction especially among the seismic isolation structures of the glass plate of an example in embodiment of this invention. It is a longitudinal cross-sectional view explaining a seismic isolation structure same as the above, (a) is normally stationary, (b) is when a small displacement upward occurs in the glass plate, (c) is a large upward upward on the glass plate It shows when the displacement occurred. It is explanatory drawing which shows the construction procedure of a seismic isolation structure same as the above, (a) is a stage until attaching an invisible upper member, (b) is a stage until attaching a lower member, (c) arranges a glass plate (D) shows the stage until the decorative board is arranged. It is explanatory drawing which shows the seamless engagement part of a seismic isolation structure same as the above. FIG. 5 is a cross-sectional view taken along line X-X in FIG. 4 and shows a case where the eyes are formed by a pair of eyeless divided bodies. The glass curtain wall using the seismic isolation structure is shown. (A) is a front view of a normal stationary state, (b) is an explanatory view showing the entire vibration, and (c) is the whole vibration. It is explanatory drawing shown. It is explanatory drawing which shows the joint part of the vertical member in the seismic isolation structure same as the above, and an invisible.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vertical 2 Seamless 3 Connection member 3c Flange part 4 Vertical member 5 Pushing edge 5a Connection piece 5b Clamping piece 8 Half body 9 Half body 10 Intermediate member 13 Opening part 16 Side surface of intermediate member 17 Side surface of half body 18 Side surface of half body 30 Upper member 32 Seamless engagement portion 40 Lower member 50 Seamless segment C Vertical member clearance C ″ Seamless clearance

Claims (5)

  A vertical member connected to the vertical is arranged on the outdoor side of the plurality of vertical members, and a holding piece and a connecting piece protruding from the central portion of the holding piece are provided on the outdoor side of the vertical member. With a structure in which the pressing edge having a substantially T-shaped cross section is arranged in a state where the connecting piece is connected to the vertical member, and the edge portion in the left-right direction of the glass plate is held between the holding piece of the pressing edge and the vertical member. There is a clearance that allows the glass plate to move in the left-right direction between the edge of the glass plate in the left-right direction and the connecting piece of the pressing edge. The member is fixed and the connecting member and the vertical member are slidably connected to each other within a predetermined range so that the vertical member and the vertical member are slidably connected to each other through the connecting member. Seismic isolation structure of glass plate.   2. The seismic isolation structure for a glass plate according to claim 1, wherein the vertical member is connected in a non-contact manner with the vertical through the connecting member.   The hollow vertical member is provided with an opening through which the connecting member protruding from the vertical is movably inserted, and the portion in the vertical member that communicates with the opening is provided in the left-right direction from the tip of the connecting member. The seismic isolation structure for a glass plate according to claim 1 or 2, further comprising a slide space in which a flange portion extending in a left and right direction is slidably fitted.   The vertical member is formed by sandwiching the intermediate member between a pair of left and right halves and fixing each of them, and a space surrounded by the side surface of each half body and the side surface of the intermediate member is defined as a flange of the connecting member in the vertical member. The seismic isolation structure for a glass plate according to claim 3, wherein the slide space is fitted into a portion. Seamless joints that project between the flat bars spanned between adjacent vertices and support the vertical edge of the glass plate from the flat bar spanned between the verticals. And an upper member fixed to the upper member and covering a lower portion of the seamless engagement portion. 5. A seismic isolation structure for a glass plate according to any one of claims 1 to 4, further comprising a clearance that allows movement of the glass plate .

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