JP2007211587A - Compulsive bending mounting method of metal honeycomb panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compulsive bending mounting method of a large metal honeycomb panel which suppresses rise in cost and has durability which sufficiently withstands calculated long-term and short-term loads though it is advantageous to production, transportation, mounting or the like. <P>SOLUTION: The metal honeycomb panel A formed by respectively fixing flat metal plates 4, 5 to front and rear surfaces of a metal honeycomb core 3 by an adhesive is used. A bending force as force imparted to the metal honeycomb panel A from the external direction of the panel surface is applied to the metal honeycomb panel A by a frame 7 for lifting which hangs up the metal honeycomb panel A till the metal honeycomb panel A is fixed by positional adjustment of a mounting member 2 constituting a mounting part to a structure 1 for mounting the metal honeycomb panel A when the metal honeycomb panel A is mounted on the mounting member 2 in a state that the panel surface is bent or twisted to form a secondary curved surface by force imparted from the external direction of the panel surface. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a method for forcibly bending and attaching a lightweight, high-rigidity metal honeycomb panel used for, for example, a curved exterior of a high-rise building, a curved roof or wall exterior of a large space building.

  Conventionally, when forming a curved exterior of a building with a single metal panel, the metal frame is bent in advance at the factory and the metal plate is attached to the metal frame so that it can be fitted into the molded metal frame. A bent plate having the same curvature is formed, and the bent metal plate is fitted into the bent metal frame using an assembly jig to produce a bent assembly panel (hereinafter referred to as a bent panel). The bent panel is transported from the factory to a remote site and attached to the building (for example, see Patent Document 1). All processes such as production, transportation, and mounting of the bending panel are considerably troublesome as compared with processes such as production, transportation, and mounting of the flat panel. Further, when the metal panel is a metal honeycomb panel in which flat metal plates are fixed to both the front and back surfaces of a metal honeycomb core with an adhesive, it takes much more work. That is, the metal frame is bent in the same manner as described above, and an expensive steel bent panel mold is manufactured in advance, and the metal frame, the two metal plates, the adhesive, and the honeycomb core are formed in the bent panel mold. After setting, many processes such as tightening and temperature curing are required, and when manufacturing the flat panel, it is possible to stack several stages of flat panel in one lot and heat cure. In the case of panels and bent panel formwork, the curvature of each panel stacked in the vertical direction is different in the thickness direction, so it is impossible to stack them. Tightening and temperature curing for each set with the bent panel formwork There is a problem that the manufacturing efficiency is low and the manufacturing cost is naturally increased. However, this method is necessary when the curvature is small, for example, within 20 m. In addition, in the case of a metal-prescribed honeycomb panel made of weld metal, after manufacturing a flat panel, it can be bent backward with a roll forming machine or the like at a factory, but the manufacturable size is 1.2 × 3.2 m. To make a small and large panel, front welding is required, which is more expensive than the metal honeycomb panel as a whole and difficult to realize. In addition, these bent panels are shaped so as to maintain the bent state so as not to be restored from the bent state to the flat plate state, although it is a problem of all plastic working. Therefore, the permanent deformation exceeding the long-term allowable stress, sometimes the short-term allowable stress, has already been received at the stage of bending plastic processing, and the stress already recorded in the weight and wind pressure of the panel loaded after that is ignored. There is also a problem that only allowable stress calculation is performed.

  On the other hand, metals, especially aluminum panels, are lightweight, highly rigid, and can produce, transport and mount large panels of 2.5m x 10m, and the flatness of the panels is extremely good. In view of the design, large panels are desirable for the exterior of large buildings, and there is of course a desire to use large honeycomb panels with smooth curved surfaces for the exterior of large buildings.

Japanese Examined Patent Publication No. 7-106392

  When handling the honeycomb panel at the factory or the field before installation when supporting the large and thin honeycomb panel at many points to support the wind pressure, depending on the supporting point of the handling, it depends on the weight of the honeycomb panel. It is necessary to consider beforehand that the honeycomb panel does not bend beyond the short-term allowable stress due to bending, and the flatness of such a honeycomb panel is determined by the mounting accuracy, so it is difficult to achieve the flatness of the honeycomb panel Become. Accordingly, for honeycomb panels and bent panels that have a high flatness, those having a large span require a suitable rigidity for the size, and a super honeycomb panel having a thickness of 100 mm to 200 mm or more is required. However, for example, when a loose curved surface exceeding R = 25 m is required, the above-mentioned thin 32 mm thick honeycomb panel which can be bent even by its own weight is fixed to a predetermined curved surface with a number of fasteners or disposed outside the panel surface. It is easy to make the panel into a curved surface by the compressed struts and the tension strings. It is possible to withstand the wind pressure by supporting the panel at a plurality of points, or by transmitting the tension of the pulling string member and the compression or tension of the support column to the plurality of points of the honeycomb panel.

  By the way, using the elasticity of a thin plate-like member, the method of making a quadratic curved surface of the final product by directly bending a flat plate is the traditional “ringwork”, “bamboo braid” ”, Used for traditional“ linker tension ”and“ carvel tension ”of the wooden board“ planking ”, modern“ plywood tension ”, etc., but not for the metal plate exterior of modern buildings. At present, a member bending manufacturing method is adopted in which a bent panel is made by attaching a metal plate to a frame member bent in advance, and then attached to a final target wall.

  There are probably three reasons for not using the method of making the quadratic surface of the final product by directly bending the flat plate using the elasticity of the thin plate member as described above. The first reason is that the strength of the metal members is increased, the dimensions are increased, and it is difficult to attach while bending with force, making fine adjustments with human hands like wooden boards and bamboo. became. The second reason is that it has been forgotten and deviated from the development direction of exterior systems in modern architecture. The third reason is that it has been difficult to develop a metal panel itself that is thin, uniform in rigidity, and smoothly bent by elasticity.

To explain the second reason in detail, in general, a metal plate panel for construction, like a steel ship or a metal aircraft, is determined by the frame and the metal plate firmly and integrally fixed, Also, unlike the one that constitutes a strong stress envelope structure as a whole, it is attached as a unit panel and dislikes distortion of the plate due to the difference in thermal expansion and contraction between the metal plate and the frame. I have to keep it loose. The joint joint of the unit panel is also a work joint to prevent the unit panel from receiving the great force of thermal expansion and contraction of the unit panel and the deformation of the building due to an earthquake, and joining with elastic seal or rubber The relationship between the unit panel and the building structure framework is a relationship in which the structure is simply attached as loosely as possible with the minimum attachment location (fastener) and covers the structure. This is the basic exterior of modern architecture and is called the “curtain wall system”.
These are the fate that architecture is assembled in the field, not the factory, and the largest objects that humans make, and are the perfect way to construct the structure and the outer wall most economically. It is no longer necessary to attach the plate directly to the main structural frame (structural load-bearing column, beam), and the modern architecture is strongly inclined to the cube that is a combination of planes in pursuit of rationality of production and space. The curved surface defined hydrodynamically like a ship or an aircraft is separated from the stress envelope structure technique in which a flat plate is bent along a framework or a flat plate is bent and firmly attached at multiple points.

  To explain the third reason in detail, a unit panel composed of a general metal plate and a frame depends only on the strength of the frame, and the metal plate attached to the loose is only a single plate caught on the frame. That is, even though it is a metal, the bending rigidity of a thin single plate is extremely low, and the bending rigidity of a panel is almost determined only by the frame. For this reason, bending or twisting such a flat panel is due to notch processing necessary for assembly of the frame, non-uniform rigidity of the essential frame such as mounting bolt holes and fastener mounting reinforcement. Due to the concentration of stress, the bending of the frame may become uneven, or in extreme cases, it may be bent. Further, since the difference in rigidity between the frame and the single plate is large, there is a difference in the deformation state of the surface plate and the frame. For this reason, when the wind pressure is applied, the deflection of the plate becomes large, the difference becomes remarkable, and it remains as a residual strain. Also, when twisting is applied, the veneer is weak, so it does not bend smoothly, and there is a high risk of “wrinkling” like a shoji paper when bent and twisted shoji frame.

  In view of the above-mentioned situation, the present invention intends to solve the problem that durability is sufficient to withstand the calculated long-term load and short-term load while suppressing an increase in cost while being advantageous in production, transportation, installation, etc. It is the point which provides the forced bending attachment construction method of the large-sized metal honeycomb panel which has the property.

In order to solve the above-mentioned problems, the present invention uses a metal honeycomb panel in which flat metal plates are fixed to both front and back surfaces of a metal honeycomb core with an adhesive, and the metal honeycomb panel is provided on the panel surface. When the panel surface is bent or twisted so that the panel surface forms a quadratic curved surface by the force applied from the outside, the metal honeycomb is applied as the force applied from the outside of the panel surface to the metal honeycomb panel. The metal honeycomb is lifted by a lifting frame that lifts the metal honeycomb panel until the metal honeycomb panel is fixed by adjusting the position of the mounting member constituting the mounting portion with the structure for mounting the panel. A forced bending mounting construction method for a metal honeycomb panel, which is characterized by applying a bending force to the panel, is used.
Therefore, when the wall surface of the building is covered with a quadric surface, the panel is flat (or can be restored to a flat surface) until installation, and when it is attached to a building structure such as a girder, the deflection due to its own weight can be used. Bending panels are pre-processed and manufactured at the factory in advance by applying a secondary curved surface to the panel by forced deformation that bends or twists by the force applied from the outside of the panel surface, such as loading the panel before or during installation. However, the wall surface of the building can be covered with a quadric surface much more economically than transporting and mounting. In addition, since the panel has a planar shape (or a state in which the panel can be restored to a flat surface), unlike a panel that has undergone permanent deformation as in the prior art, the panel can sufficiently withstand a long-term load or a short-term load. The quadratic curved surface is a generic term for a curved surface represented by a quadratic equation of real coefficients using orthogonal coordinates in space, and includes a curved surface formed when a metal honeycomb panel is twisted. . The metal honeycomb panel has an integral structure in which the core is a web and the metal plate is a flange, and the bending rigidity is extremely large. When the thickness of the metal single plate attached to the above-mentioned conventional frame is 0.5 cm, the second moment of section is 0.01 cm ⁴ , but the honeycomb panel of 3 cm thickness with 0.25 cm plates stretched on both sides is used. The cross-sectional second moment is 0.95 cm ⁴ and the rigidity is about 95 times. Therefore, the rigidity of the honeycomb panel is uniform as a whole with little influence of the frame, and even if the flat plate is forcibly bent, it bends smoothly. In addition, since the height of the frame and the core is exactly the same, there is no step between them. In addition, the honeycomb panel has relatively little in-plane orientation, is thin and highly rigid, and generally resembles the strength of a thin plate such as solid wood or bamboo, and the surface plate is made of metal. Since the bending allowable stress is high, the bending deformation capacity of the panel is higher than that of wood. However, the metal honeycomb panel has higher rigidity than each thin plate and is difficult to bend. However, if the panel is made longer for the thickness of the panel, the panel becomes relatively easy to bend in the length direction.

  As the force applied to the metal honeycomb panel from the outside of the panel surface, until the metal honeycomb panel is fixed by adjusting the position of the mounting member constituting the mounting portion with the structure for mounting the metal honeycomb panel, Bending force can be applied to the metal honeycomb panel by a lifting frame for lifting the metal honeycomb panel.

  Forming the outer dimension of the honeycomb core smaller than the outer dimension of the metal plate, disposing a frame member in a gap formed between the outer peripheral surface of the honeycomb core and the outer peripheral back surface of the metal plate; The stress generated in each member such as a metal plate, a frame member, a honeycomb core, an adhesive, and an attachment member of the metal honeycomb panel due to the forced bending attachment of the metal honeycomb panel and its own weight and long-term load Metal that can withstand long-term loads and short-term loads by making the stress generated by adding to each member below the short-term permissible stress due to wind pressure, seismic force, and short-term loading load. A honeycomb panel can be obtained. In other words, in the past, when bending a frame during the manufacture of a bending panel, the stress of the frame material has entered the plastic deformation beyond the elastic range, and naturally the elastic region exceeds the range that makes the allowable stress short-term. However, when calculating the strength, the stress is generally calculated by ignoring the history and assuming that the material is healthy. On the other hand, in this construction method, the forced bending stress of each member can be limited to a long-term allowable stress or less, so it can be said that it is reasonable and safe.

According to the forced bending mounting structure method of the metal honeycomb panel according to the present invention, it is necessary to produce a conventional panel by forming the panel formed in a flat plate shape in a bent or twisted state at the construction site. There are no restrictions and the number of production processes can be reduced. As a result, an extremely large panel having a maximum width of 2 to 2.5 m and a maximum length of 11 to 12 m (maximum surface area of 22 to 30 m ² ) (3 to 10 times that of a normal panel) while suppressing an increase in cost. Can be manufactured. In addition, since the panels are flat, they can be stacked and easily transported. Furthermore, the larger the panel, the easier it is to bend, and the number of attachment steps can be reduced, making attachment easier. In addition, the length of the bonded portion per panel area is extremely small, which is economical.
And by comprising the said panel with a metal honeycomb panel, lightweight high rigidity can be aimed at and the installation possible range, such as a location where durability is requested | required, can be aimed at. Further, in the case of a metal honeycomb panel, it is necessary to apply a pushing / pulling force of about 10 to 200 kgf to the fastener in order to forcibly displace it to a predetermined curvature at the time of attachment. It can be easily applied with a simple external force machine such as a multi-stage pulley device. In addition, it is sufficiently possible to set the receiving portion of the fastener on the curved surface in a predetermined position in advance by the development of 3D CAD (3D computer drawing) and surveying equipment.
In the case of manufacturing a bent panel by bending the frame material as in the prior art, the stress of the frame material has entered the plastic deformation beyond the elastic range, and naturally the range where the elastic range is a short-term allowable stress. In spite of exceeding, it is common to calculate the stress by ignoring the history and assuming that the material is healthy (having elastic restoring force). By attaching the panel in a bent or twisted state, the panel can be made to have a resilient restoring force, and can be attached as a panel having the calculated strength.
Moreover, the metal honeycomb panel can be easily bent by applying a bending force to the metal honeycomb panel using the lifting frame.

  FIG. 1 shows an attachment structure for attaching the metal honeycomb panel A to the attachment member 2 of the structure 1 in a state where the panel surface of the metal honeycomb panel A is bent so as to form a secondary curved surface. As shown in FIGS. 6 and 7, the metal honeycomb panel A is provided with a metal honeycomb core 3 having, for example, a honeycomb type honeycomb structure in which a large number of holes having a hexagonal cross section are formed. The metal plates 4 and 5 are bonded and fixed to the front surface side and the back surface side of the steel plate 3 with an adhesive (not shown), and a gap formed between the outer peripheral surface of the honeycomb core 3 and the back surfaces of the outer peripheral edges of the metal plates 4 and 5 is formed. It is configured to be bonded and fixed in a state where the frame member 6 is arranged. When the metal honeycomb panel A is bent by using an elastic adhesive as the adhesive, it is generated between the honeycomb core 3 and the metal plates 4 and 5 particularly at both ends in the bending direction due to the difference in the radius of curvature. However, since the positional deviation is very small, a rigid adhesive may be used. The material of the honeycomb core 3 and the metal plates 4 and 5 may be any material other than aluminum, such as steel, iron, stainless steel, and titanium. In this embodiment, a case where the metal honeycomb panel A is bent to the left and right is shown, but the panel surface of the metal honeycomb panel A forms a quadratic curved surface by bending or twisting to the left and right non-target. You may do it.

  The mounting structure of the metal honeycomb panel A will be described. First, the metal honeycomb panel A is attracted to a plurality of suction cups 7A provided at the lower end of the lifting frame 7 and then lifted and moved to a predetermined mounting position. . Next, the metal honeycomb panel A is lowered so that one end of the metal honeycomb panel A is positioned on the fastener 2 positioned at one end of the fastener 2 that is an attachment member provided on the upper portion of the large beam 1 that is the structure. (See the two-dot chain line in FIG. 1) One end of the metal honeycomb panel A is fixed to the fastener 2. Subsequently, a predetermined portion of the metal honeycomb panel A corresponding to the fastener 2 closest to the fastener 2 and located above the fastener 2 is fixed. After that, after fixing a predetermined portion of the metal honeycomb panel A corresponding to the fastener 2 which is close to the fastener 2 and located at substantially the same height as the fastener 2, the fastener 2 which is located farthest away from the fastener 2 is fixed. The other end of the metal honeycomb panel A is fixed to complete the attachment of the metal honeycomb panel A so that the metal honeycomb panel A can be arranged in a curved shape. The other end of the metal honeycomb panel A is attached with the tip of a wire 9 having a pulling block 8 at the lower end, and the other end of the metal honeycomb panel A that the worker cannot reach from the fixed scaffold 10. Can be easily bent to the fastener 2 side via the wire 9. The wire 9 is directly operated by an operator pulling the wire 9 by hand, and the wire 9 is connected to a hoisting machine (not shown) and the wire 9 is pulled using the power of the machine. By doing so, the metal honeycomb panel A may be operated in a bent state. The said wire 9 will be removed after completion | finish of attachment work.

  Each fastener 2 is formed so that the mounting surface on which the metal honeycomb panel A is mounted substantially matches the secondary curved surface of the metal honeycomb panel A, and only the shape of the portion is different. Since the basic structure is the same for all fasteners 2, only typical fasteners 2 will be described. That is, as shown in FIGS. 6 to 8, the first fastener portion 2 </ b> A having an inverted T shape that is fixed to the upper end of the large beam 1 by the bolt 11, and the first fastener portion 2 </ b> A are connected via the bolt 12. And it comprises from a pair of 2nd fastener parts 2B and 2B to which the front-end | tip of the volt | bolt 13 extended from the metal honeycomb panel A is fixed to an upper end. The bolt 13 penetrates the heat insulating rubber 14 and the U-shaped spacer 15, penetrates the through hole 2 b formed in the one second fastener portion 2 B, and is a pair of vertically positioned via the through hole 2 b. The vertical positions of the metal honeycomb panel A relative to the fastener 2 can be adjusted by the nuts 16 and 17. 18 shown in the figure is a bolt for fastening and fixing the heat insulating rubber 14 and the spacer 15 to the back surface of the metal honeycomb panel A. Reference numerals 19 and 20 shown in the figure denote nuts for fixing the position of the bolt 13 with respect to the metal honeycomb panel A. The through-hole 2a for the bolt 12 formed in the vertical plate portion of the first fastener portion 2A is formed in a long groove along the longitudinal direction of the metal honeycomb panel A, and the second fastener with respect to the first fastener portion 2A. The position of the portion 2B can be adjusted in the longitudinal direction of the metal honeycomb panel A. Further, the through hole 2d for the bolt 11 formed in the through hole 2b and the bottom plate portion of the first fastener portion 2A is a direction perpendicular to the longitudinal direction of the metal honeycomb panel A, that is, the left and right width of the metal honeycomb panel A. A long hole is formed in a direction (direction penetrating the paper surface) so that the position of the metal honeycomb panel A can be adjusted in the panel width direction. Reference numeral 37 shown in FIG. 8 denotes a nut that is screwed onto the bolt 12.

As shown in FIG. 5, the metal honeycomb panel A is fixed at seven places (a total of 14 places on the left and right sides) at appropriate intervals in the longitudinal direction of the panel on both sides in the width direction of the metal honeycomb panel A (in the figure, A specific attachment structure thereof will be described with reference to FIGS. 4, 6, and 7.
As shown in FIG. 4, a brace spar 21 extending upward from both sides of the metal honeycomb panel A in the vertical direction between the fastener 2 and the large beam 1 attached to the upper end surface of the large beam 1 and the metal honeycomb panel A, In FIG. 6, a predetermined portion of the metal honeycomb panel A is fixed to the fastener 2 located on the leftmost side in FIG. 4 as described above, and FIG. Then, a predetermined portion of the metal honeycomb panel A is fixed to the upper end portion of the brace spar 21. The case where a predetermined portion of the metal honeycomb panel A is fixed to the upper end portion of the brace spar 21 will be described in detail. The plate material welded to the upper end surface of the brace spar 21 is almost the same as the case where it is attached to the fastener 2 described above. The metal honeycomb panel A is fixed to the bolts 22 by the bolts 23 shortened only in the vertical dimension of the bolts 13 and screw portions. Other members and the like shown in the figure are the same as those attached to the fastener 2, and thus the same members are denoted by the same reference numerals and description thereof is omitted.

Necessary for forced bending when the metal plates 4 and 5 of the metal honeycomb panel A have a thickness of 1.5 mm, a panel thickness of 32 mm, a panel width of 2 m, a length of 10 m and a bending R (curvature radius) of 25 to 185 m. The reaction force of each fastener 2 is about 10 to 200 kgf. In this example, when R = 38 m due to its own weight and forced displacement, the maximum tensile stress of the panel face plate due to forced bending is 0.42 times the long-term allowable value, and the shear stress is only 0.33 times. Moreover, since the honeycomb panel is the lightest and most rigid in the structure that human beings make, the stress generated by its own weight is small, and the long-term stress is mainly forced bending stress. As an example in this state, when a wind pressure of maximum negative pressure of −280 kgf / m ² is applied, the maximum tensile stress of the panel face plate is 0.38 times the short-term allowable value, and the shear stress is 0.59 times. In this way, the forced bending stress of the metal honeycomb panel A can be limited to a long-term allowable stress or less.

  The metal honeycomb panel A may be bent by artificial force or mechanical power, or may be bent using gravity of the panel's own weight or weight, or as shown in FIG. Bending force may be applied by inclining 7 to the left from the state shown in the figure. Moreover, as shown in FIG. 4, the metal honeycomb panel A is bent by pulling the wire 24 attached to one end of the metal honeycomb panel A using a pulling tool. 24 and a pulling tool (not shown) are not directly connected, but are indirectly connected to the pulling tool via a U-shaped reaction force clamp 25 attached to the girder 1, thereby The reaction force of the tensile force is transmitted to the large beam 1 having the greatest strength among the buildings so that the tensile tool is not damaged. In addition, after fixing, the wire 24, the reaction force clamp 25, etc. will be removed.

  Bending the metal honeycomb panel A may be as shown in FIGS. 2 (a) and 2 (b) and FIGS. 3 (a) and 3 (b). That is, in FIGS. 2A and 2B, the metal honeycomb panel A is bent by extending two wires 26 and 27 diagonally from both ends in the longitudinal direction of the metal honeycomb panel A. Two V-shaped strut members 28, 28 for bearing a compressive force acting between the honeycomb panel A and the wires 26, 27 are arranged on the back side of the metal honeycomb panel A; In order to prevent the metal honeycomb panel A from moving upward, both ends in the longitudinal direction of the metal honeycomb panel A thus configured are attached to the fasteners 2 and 2 provided at the upper ends of the large beams 1 and 1. Large beams 1, 1 are connected by wires 29, 30 from the lower ends of the support members 28, 28. 3 (a) and 3 (b), in addition to the two wires 26 and 27, three V-shaped strut members 28 are used, and from both sides of the strut member 28 located in the middle, respectively. Wires 29 and 30 for preventing upward movement of the metal honeycomb panel A are stretched on the large beams 1 and 1 through support members 28 or 28 located on both sides. As described above, the number of the strut members 28 and the manner in which the wires 26, 27, 29, 30 are stretched may be configured to be other than those shown in the drawing.

  The metal honeycomb panel A is attached mainly to the ceiling, but may be attached to the side wall, but FIGS. 9 (a) and 10 show other attachment methods attached to the side wall. That is, the outer rubber beat 32 is attached in advance between the frame members 6 and 6 of the metallic honeycomb panels A and A adjacently disposed in the vertical direction, and then the vertical projecting frame 6A is integrally formed. After the metal honeycomb panel B having a different shape provided with the frame member 6B is fitted in the direction of the arrow in FIG. 9 (a) and FIG. 10, that is, from the back side of the panel A, the pushing edges 31, 31 at the upper and lower ends. Are attached to the metal honeycomb panels A and A positioned above and below with the screws 39 and 39, respectively, and the inner rubber beads 32B are respectively inserted between the pressing edges 31 and 31 and the projecting frames 6A and 6A of the metal honeycomb panel B. By pushing in, the metal honeycomb panel B can be mounted while being bent. In addition, 32C and 32C shown to a figure are sealing members. The outer rubber beads 32, 32 are provided in advance in the frame members 6, 6, and as shown in FIG. 9 (b), the metal honeycomb panel B can be mounted while being bent by being pushed in from the lateral direction indicated by the arrow. Good. In this case, it is now the case that the inner rubber bead 32 is pushed in after mounting the panel. Although the metal honeycomb panel B is fitted between the frame members 6 and 6 of the metal honeycomb panels A and A that are adjacently disposed in the vertical direction, the frames of the metal honeycomb panels A and A that are adjacently disposed in the horizontal direction. The metal honeycomb panel B may be fitted between the members 6 and 6 from above and below. 11 and 12, another shape of the metal honeycomb panel C having a frame member 6B in which protruding edges 6a are integrally formed on the left and right sides between the frame members 33 and 33 arranged adjacent to each other in the left-right direction is shown upward. Or after arrange | positioning from a back surface side, left and right pushing piece 31A, 31A (only one pushing piece is shown in the figure) is attached to the frame material 33 at several positions in the vertical direction by screws 40, and the pushing piece 31A, 31A makes the frame material 33 , 33, the metal honeycomb panel C can be mounted while being bent. The shape of the pressing piece 31A may be other than that shown in the drawing. The left and right push pieces 31A, 31A may be attached in advance, and the metal honeycomb panel C may be bent and attached by being pushed into the gap between the push pieces 31A, 31A and the frame members 33, 33. Further, the metal honeycomb panel C is fitted between the frame members 33 and 33 that are adjacently disposed in the left-right direction, but the metal honeycomb panel C is horizontally disposed between the frame members 33 and 33 that are adjacently disposed in the vertical direction. It may be inserted from. Further, instead of the left and right push pieces 31A and 31A, as shown in FIG. 12, push bolts 31B are provided at the left and right and at several places on the top and bottom (only one is shown in the figure), and the push bolt 31B is rotated so that the frame The metal honeycomb panel C can be pressed along the materials 33 and 33. In the above example, the metal honeycomb panel is mounted from the inside of the building, but when the scaffolding is provided outside, if the frame member, the metal honeycomb panel, the pushing edge, and the internal and external positional relationship of the rubber beads are reversed, A metal honeycomb panel can be mounted from the outside.

  The metal honeycomb panel A may be attached as shown in FIGS. 13 (a), 13 (b) and FIG. That is, a plurality of metal support members 34 for connecting and reinforcing the large beams 1 and 1 arranged in parallel in the horizontal direction are provided, and the upper surfaces of these support members 34 are divided and installed on the left and right sides via the spacers 38. While the metal honeycomb panel A is bent and fixed to the eight fasteners 2 with bolts 35 and nuts 36, the metal honeycomb panel A can be fixed in a bent state. As shown in the figure, the support member 34 is composed of a chord material 34A formed in an annular shape and two rod-like struts 34B and 34B disposed on the inner surface of the annular chord material 34A. Other shapes may be used. As shown in the figure, the spacer 38 is provided so that the lower surface of the metal honeycomb panel A is brought into contact with the upper surface of the support member 34. However, when the diameter of the chord member 34A of the support member 34 is large, the chord member 34A. The lower surface of the metal honeycomb panel A can be directly applied to the upper surface of the metal, and the spacer 38 can be omitted.

Schematic explanatory diagram showing the mounting method for mounting metal honeycomb panels Fig. 2 shows a state in which an out-of-plane force is applied to the metal honeycomb panel with a string material and a support material, (A) is a side view, and (B) is a perspective view seen from below. Fig. 2 shows another state in which an out-of-plane force is applied to the metal honeycomb panel with a string material and a support material, (A) is a side view, and (B) is a perspective view seen from below. Schematic explanatory diagram showing the state immediately before bending the metal honeycomb panel with the lifting frame Plan view of metal honeycomb panel FIG. 5 is a cross-sectional view taken along the line II in FIG. 5, showing a cross section of the state where the metal honeycomb panel is attached to the fastener. Fig. 5 is a cross-sectional view taken along the line II-II in Fig. 5, showing a cross section of the metal honeycomb panel attached to the brace spar. Front view of fastener (A) is a perspective view showing a state in which a metal honeycomb panel is fitted between metal honeycomb panels arranged vertically, (B) is a perspective view in which the fitting direction of the metal honeycomb panel shown in (A) is changed. Figure 9 is a longitudinal sectional view of the main part of FIG. The perspective view which shows the state which inserts a metal honeycomb panel between the frame materials arrange | positioned on right and left Cross-sectional plan view of the main part of FIG. (A) is a perspective view showing a state before the metal honeycomb panel is attached to the support member provided between the large beams, and (B) shows a state where the metal honeycomb panel is attached to the support member provided between the large beams. Perspective view 13 is a longitudinal sectional view of the main part of FIG.

Explanation of symbols

1 Structure (large beam) 2 Mounting part (fastener)
2A 1st fastener part 2B 2nd fastener part 2a, 2b, 2d Through-hole 3 Honeycomb cores 4, 5 Metal plate 6 Frame member 6A Projection frame 6B Frame member 6a Projection edge 7 Lifting frame 7A Suction cup 8 Pull block 9 Wire 10 Fixation Type Scaffolding 11, 12, 13 Bolt 14 Heat Insulating Rubber 15 Spacer 16, 17 Nut 18 Bolt 19, 20 Nut 21 Brace Spar 22 Plate 23 Bolt 24 Wire 25 Reaction Force Clamp 26, 27 Wire 28 Support Material 29, 30 Wire 31 Push Edge 31A Push piece 31B Push bolt 32 Outer rubber beat 32B Inner rubber beat 3 Frame member 34 Support member 34A String member 34B Strut member 35 Bolt 36, 37 Nut 38 Spacer 39, 40 Screw A, B, C Metal honeycomb panel T Installation location

Claims (1)

Using a metal honeycomb panel in which flat metal plates are fixed to both front and back surfaces of a metal honeycomb core with an adhesive, the panel surface is secondarily applied by a force applied from the outside of the panel surface of the metal honeycomb panel. When attaching to a mounting member in a bent or twisted state so as to form a curved surface, as a force to be applied to the metal honeycomb panel from the outside of the panel surface, an attachment portion with a structure for attaching the metal honeycomb panel is provided. The metal honeycomb panel is subjected to bending force by a lifting frame for lifting the metal honeycomb panel until the metal honeycomb panel is fixed by adjusting the position of the mounting member constituting the metal honeycomb panel. Forced bending mounting method for metal honeycomb panels.

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