JP2007303190A - Beam steel frame in ceiling for repairing roof and ceiling member fitting-in structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a beam steel frame and a ceiling member fitting-in structure capable of preventing occurrence of a clearance between the beam steel frame supporting a purlin and a roof member and achieving satisfactory construction property in a ceiling for repairing roof by hiding a lower face of the existing roof by the ceiling. <P>SOLUTION: In this ceiling C for repairing roof constructed below the existing roof constituted by constructing the roof member on the steel-made purlin 1 in a condition in which it is inclined along the existing roof, ceiling cornices 17A, 17B, 17C, 17D forming fitting parts b in which end parts of ceiling members 16 are inserted so as to slide freely in the in-plane direction are provided among the beam steel frames 10, 11 supporting the purlin 1 and the ceiling member 16 attached to a lower part of the purlin 1 to block a clearance among the beam steel frames 10, 11 and the ceiling member 16 by the ceiling cornices. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a beam steel frame and a ceiling in a roof for roof repair, in which the lower surface of an existing roof formed by laying a roof material (for example, folded-plate roof material or asbestos slate roof material) on a steel purlin beam is concealed by the ceiling. Concerning the material storage structure.

  For example, as an asbestos slate roof renovation method that conceals the upper surface of an existing asbestos slate roof to contain asbestos, as disclosed in Patent Document 1, an asbestos slate roof material constructed on a steel purlin girder is used. The existing asbestos slate roof fixed with the hook bolt locked to the purlin girder and the nut to be screwed to it remains as it is, and the asbestos slate roof is constructed with a metal folded plate roof on top of it. The construction method has already been established.

  This method is superior in many aspects, such as asbestos scattering and waste treatment, when compared with the refurbishing method that removes the existing asbestos slate roof and finishes with new non-asbestos slate. Compared to the coating method, which removes dirt and deteriorated surfaces (high pressure cleaning) and finishes by painting, it has much longer service life (asbestos containment period).

  However, when this construction method is adopted in an existing building where the bottom surface of the asbestos slate roof is not covered with the ceiling, some asbestos countermeasure is required on the bottom surface side of the asbestos slate roof. As a countermeasure, building a ceiling is the most effective, and it is considered more realistic than a painting method with a thin coating thickness and a short asbestos containment period.

  However, when constructing a ceiling in an existing building where the bottom surface of the asbestos slate roof is not covered with the ceiling, for example, when the ceiling is constructed by a general construction method as seen in Patent Documents 2 and 3, the following problems A point will be invited.

  First, a horizontal ceiling foundation is formed by a field edge receiver that is suspended and supported by suspension bolts on a purlin girder that supports asbestos slate roofing material, and a field edge that is attached perpendicularly to them. Since a horizontal ceiling is constructed by attaching ceiling materials to the base, a wide ceiling space is formed between the asbestos slate roof with a drainage gradient and the horizontal ceiling, so it can be used inside the building. Space will be narrowed.

  Secondly, the weight of the ceiling base consisting of the field edge holder and the field edge is added to the place where the load of the roof is increased by covering the existing asbestos slate roof with the metal folded plate roof. As a result, large-scale structural reinforcement is required.

  Thirdly, since the ceiling material or ceiling material holding metal fitting will be screwed to the edge, it is necessary to process the screw hole with a drill on site, and dust is generated due to vibration during screw hole processing. The presence or absence of asbestos in the dust (asbestos scattering) becomes a problem.

  In light of such problems, the present inventor fixed an existing roof material installed on a steel purlin beam with a hook bolt that locks the lower part of the main purlin beam and a nut that is screwed to the hook bolt. In order to conceal the lower surface of the roof with the ceiling, there is no need for a ceiling base composed of a field guard and a field edge, and there is no need to machine screw holes for purlins, etc. We have developed a roof refurbishment method that eliminates concerns about strength reduction due to generation and screw hole processing, and allows the ceiling to be constructed easily and in a short period of time without significantly reducing the available space in the existing building. It has already been proposed as application 2006-82928.

  In this method, the roof material installed on the steel purlin is covered with a hook bolt that locks the lower part of the main purlin and the nut that is screwed to it. A plurality of suspending methods, wherein a suspension supporting locking portion that is locked to the purlin girder and / or hook bolt and a ceiling material retaining groove that opens in the longitudinal direction of the purlin girder are formed. Metal fittings and a plurality of ceiling members that are arranged side by side in the longitudinal direction of the purlin, and are formed with male and female mating portions that fit together on adjacent side edges, and the locking portion is the purlin and Hang the hooks on the main girders at appropriate intervals in the longitudinal direction by hooking them to the hook bolts, insert the side edges of the ceiling material into the grooves of each hanging bracket, and incline along the existing roof It is characterized by constructing a ceiling that has been made.

Japanese Patent No. 3484630 Japanese Patent Publication No. 6-10381 No. 7-34989

  By the way, in the roof renovation method described above, as a ceiling material, for example, a collar in which a male fitting portion is formed on one side edge in the width direction and a corresponding female fitting portion is formed on the other side edge. When using siding made of steel plate siding, color steel plate and heat insulating material laminated on one side, siding made of front and back color steel plate and heat insulating material interposed between them, their width (working width) and length Even if it is a standard product with a limited number of types, there is no problem in construction in the general part, but the following problems may occur in the joint part with the beam steel frame. is there.

  In other words, the purlin girder is usually supported by a beam steel frame that is orthogonal to the purlin girder and a beam steel frame that is parallel to the ridge. Therefore, depending on the span of the beam steel frame, a siding (ceiling material) with a constant horizontal width may be used. If it is assigned in the longitudinal direction of the girder, a gap may be formed between the beam steel frame and the siding (ceiling material) at the end. Moreover, in the standard product siding (ceiling material) with a limited length, a gap may be formed between the beam steel frame parallel to the ridge and the longitudinal end of the siding (ceiling material).

  The present invention solves such a problem in the joint portion with the beam steel frame, and as a ceiling material, for example, a male fitting portion is formed on one side edge in the width direction, and the other side edge has it. Color steel siding with corresponding female fittings, siding consisting of color steel plate and heat insulating material laminated on one side, siding consisting of front and back color steel plate and heat insulating material interposed between them The purpose of the present invention is to provide a construction structure for the beam steel frame and the ceiling material in the roof repair ceiling with good workability so that there is no gap between the beam steel frame and the roof material that supports the purlin girder even if it is used. To do.

  In order to achieve the above object, the present invention provides a roof renovation ceiling in which a ceiling inclined along the existing roof is constructed below an existing roof formed by laying a roofing material on a steel purlin girder. Between the beam steel frame that supports the purlin girder and the ceiling material attached to the lower part of the purlin girder, there is a surrounding edge in which a fitting portion is formed to insert the end of the ceiling material so as to be slidable in the in-plane direction. The gap between the steel frame and the ceiling material is closed around the periphery.

  Specifically, in the storage structure of the beam steel frame and the ceiling material in the roof for roof repair according to the invention described in claim 2, the existing roof is provided below the existing roof formed by laying the roof material on the steel purlin girder. The upper flange part between the upper flange part of the H-steel beam steel frame supporting the purlin girder and the ceiling material attached to the lower part of the purlin girder Is provided with a surrounding edge formed with a fitting portion for slidably inserting in the in-plane direction and a fitting portion for inserting the end portion of the ceiling material in a slidable manner in the in-plane direction. The gap is closed around the gap.

  In the storage structure of the beam steel frame and the ceiling material in the roof for roof repair according to the invention of claim 3, along the existing roof, below the existing roof formed by laying the roof material on the C-shaped steel purlin In the roof renovation ceiling constructed with an inclined ceiling, the end of the ceiling material is placed between the upper flange part of the H-shaped steel beam steel frame supporting the purlin beam and the ceiling material attached to the lower part of the purlin beam The surrounding edge where the fitting part to be slidable in the in-plane direction is formed is suspended and supported by the purlin girder via the locking part that engages the lower lip of the purlin girder. The gap between the flange and the ceiling material is closed around the periphery.

  In the invention according to claim 3, the locking portion may be integrally connected to the surrounding edge (invention 4), and is provided on a metal fitting that can be attached to and detached from the surrounding edge. (Claim 5).

  According to said structure, since the fitting part which inserts the edge part of a ceiling material in the surrounding edge so that sliding is possible in an in-plane direction is formed, it is between the beam steel frame which supports a purlin girder, and the edge part of a ceiling material. Even when a gap is generated, the gap can be eliminated by adjusting the amount of insertion of the end of the ceiling member with respect to the fitting portion.

  According to the structure of invention of Claim 2, the clearance gap between the longitudinal direction edge part of the ceiling material attached to the upper flange part of the beam steel frame made from H-shaped steel parallel to a ridge and the lower part of a purlin beam can be obstruct | occluded. . Moreover, it can be constructed by a simple operation that does not require welding or screwing, in which one fitting portion formed at the peripheral edge is inserted into the upper flange portion and the end portion of the ceiling material is inserted into the other fitting portion.

  According to the structure of invention of Claim 3, the clearance gap between the upper flange part of the beam steel frame made from H-shaped steel orthogonal to a purlin beam and the side edge of the ceiling material attached to the lower part of the purlin beam can be obstruct | occluded. In addition, a simple work that does not require welding or screwing, such as inserting the side edge of the ceiling material into the fitting part formed at the peripheral edge and engaging the locking part with the lower lip of the C-shaped steel purlin. It can be constructed by.

  As described above, according to the present invention, the gap between the beam steel frame and the ceiling material can be closed by a simple operation that does not require welding or screwing. For example, the upper surface of an existing asbestos slate roof is concealed with a folding roof. Before asbestos containment, the lower surface of the existing asbestos slate roof can be easily and quickly covered with a ceiling without any gaps, so that it is possible to prevent asbestos from being scattered indoors during the construction of the folding roof. Therefore, it is extremely effective as an asbestos countermeasure.

  1-4, the existing asbestos slate roof A is left as it is, and the existing building prior to the construction of the metal folded plate roof B is applied to an existing building constructed by covering the metal folded plate roof B thereon. The example which concealed the lower surface of the asbestos slate roof A with the ceiling C for roof repair is shown. Asbestos slate roof A, as shown in FIG. 5, asbestos slate roof material 2 having a corrugated cross section erected on purlin 1 made of C-shaped steel (lip groove steel) is applied to upper lip portion 1 a of purlin 1. It is configured to be fixed by a hook bolt 3 with which a lower part is locked and a nut 4 screwed into the hook bolt 3. For example, the metal folded plate roof B is fixed to a through main purlin 7 fixed to the peak portion of the roof material 2 made of asbestos slate by a long nut 5 screwed to the upper end of the hook bolt 3 and screwed to the saddle member 6. It is constructed by fixing the folded plate roofing material 8 with bolts 9. Reference numeral 10 denotes a beam steel frame made of H-shaped steel parallel to the ridge, 11 is a beam steel frame made of H-shaped steel perpendicular to the main building beam 1, that is, perpendicular to the main beam 1, and the main beam 1 is formed by these beam steel frames 10 and 11. It is supported.

  Then, when the asbestos slate roof A is concealed with a ceiling C for roof renovation and the asbestos is contained from the inside, the suspension support for locking to the lower lip portion 1b of the purlin beam 1 is used. Adjacent side edges that are arranged side by side in the longitudinal direction of the purlin beam 1 and a plurality of hanging metal fittings 14 formed with the locking portion 12 and the groove 13 for holding the ceiling material opened in the longitudinal direction of the purlin beam 1 And a plurality of ceiling members 16 formed with male and female fitting portions 15a and 15b that are fitted to each other, and the latching portion 12 is hooked on the lower lip portion 1b of the purlin girder 1 to thereby suspend the bracket. 14 is suspended and supported on the purlin 1 at appropriate intervals in the longitudinal direction, and the fitting portions 15a and 15b on the side edges of the ceiling material 16 are inserted into the groove portions 13 of the respective suspension fittings 14 along the asbestos slate roof A. Building an inclined ceiling C .

  The operation of attaching the ceiling material 16 to the purlin beam 1 with the hanging bracket 14 is performed one by one from the left side to the right side in FIG. 2, and the ceiling is placed in the groove 13 of the hanging bracket 14 hooked on the purlin beam 1. The fitting portion 15a on one side edge of the material 16 is inserted, and the fitting portion 15b on the other side edge of the next ceiling material 16 is fitted to the fitting portion 15a inserted in advance of the groove portion 13. Thereafter, the ceiling material 16 is connected one by one in the width direction by a procedure of inserting the fitting portion 15a at one side edge into the groove portion 13 of the next hanging metal fitting 14. In this case, the suspension fitting 14 is in a state in which the locking portion 12 is hooked on the lower lip portion 1 b of the purlin beam 1 and is slidable in the longitudinal direction of the purlin beam 1. The operation | work which inserts the fitting part 15a of the one side edge of the material 16 can be performed easily.

  This embodiment is characterized in that the storage of the beam steel frames 10 and 11 and the ceiling material 16 in the roof for repairing roof C has the following structure. That is, regarding the storage structure of the H-shaped steel beam steel frame 10 parallel to the ridge and the upper and lower ends of the ceiling member 16, as shown in FIGS. Between the flange portion 10a and the ceiling material 16 attached to the lower part of the purlin 1, the upper flange portion 10a is slidably inserted in the in-plane direction and the end portion of the ceiling material 16 is slidable in the in-plane direction. The fitting portion b to be inserted into the frame is provided with peripheral edges 17A and 17B formed on both sides, and the clearance between the upper flange portion 10a of the beam steel frame 10 and the ceiling material 16 is closed with the peripheral edges 17A and 17B.

  In this case, even if there is some variation in the width of the gap between the upper flange portion 10a and the ceiling material 16, the peripheral edge 17A, 17B has a fitting portion b into which the end of the ceiling material 16 is slidably inserted in the in-plane direction. Therefore, by adjusting the amount of insertion at the end of the ceiling material 16, the gap width variation can be absorbed and the gap can be closed.

  As a construction procedure, by fitting the fitting portion a to the upper flange portion 10a, the peripheral edges 17A and 17B are supported by the upper flange portion 10a, and then the end portion of the ceiling material 16 is fitted to the fitting portion b. On the contrary, first, the fitting portion b is fitted to the end of the ceiling member 16, and then the fitting portion a is fitted to the upper flange portion 10a. 17A and 17B may be supported by the upper flange portion 10a.

  The peripheral edges 17A and 17B are manufactured by bending a single iron plate. As shown in FIGS. 4, 5, and 9, two edges are stacked on one side edge of the upper plate portion 18 downward. A plate portion 19 that is folded back to a state, and a plate portion 20 that is folded downward from the tip of the plate portion 19 with an interval of about the thickness of the upper flange portion 10a, and the fitting portion a is interposed between the plate portions 19 and 20. It is configured. A bent piece 21 serving as a guide for inserting the upper flange portion 10a is provided at the tip of the plate portion 20. Further, on the other side edge of the upper plate portion 18, a plate portion 22 folded back in a state of being overlapped two downwards, and a plate portion 23 folded back from the tip thereof downward with an interval more than the thickness of the ceiling material 16. And the fitting portion b is configured between the plate portions 22 and 23. A bent piece 24 serving as a guide for inserting the ceiling material 16 is provided at the tip of the plate portion 23.

  Of the surrounding edges 17A and 17B, the upper plate 18 is formed flat with respect to the surrounding edge 17B that closes the gap between the beam steel frame 10 and the ceiling material 16 that is located away from the building. As shown in FIG. 4, the surrounding edge 17 </ b> A that closes the gap between the steel frame 10 and the ceiling member 16 is bent at an angle that matches the drainage gradient of the roof at the center in the width direction.

  As shown in FIG. 2 and FIG. 6, the accommodation structure of the beam steel frame 11 made of H-shaped steel perpendicular to the ridge, that is, orthogonal to the purlin 1 and the side edge (end in the width direction) of the ceiling material 16 The end portion of the ceiling material 16 is slidable in the in-plane direction between the upper flange portion 11a of the H-shaped steel beam steel frame 11 that supports the purlin beam 1 and the ceiling material 16 attached to the lower portion of the purlin beam 1. The surrounding edge 17C formed with the fitting portion b to be inserted into the main spar 1 is provided in a state where it is suspended and supported by the purlin 1 via a locking portion 25 that engages with the lower lip 1b of the purlin 1. A gap between the upper flange portion 11a and the ceiling member 16 is closed with an edge 17C.

  The peripheral edge 17C is manufactured by bending a single iron plate. As shown in FIG. 10, the upper plate portion 26 having its tip folded in a two-layered state and one end in the width direction downward. A plate portion 27 bent at a right angle and a lower plate portion 28 folded at a right angle from its lower end are formed in a U-shaped cross section, and the fitting portion b is formed between the upper plate portion 26 and the lower plate portion 28. It is. A bent piece 29 serving as a guide when the ceiling material 16 is inserted is provided at the tip of the lower plate portion 28. The locking portion 25 is integrally connected to the peripheral edge 17C. Specifically, the locking portion 25 is formed by an L-shaped plate fixed to the upper surface of the upper plate portion 26 by means such as riveting. The rising plate portion is bent by field work and engaged with the lower lip 1b of the purlin beam 1. Although not shown, the locking portion 25 may be formed by cutting and raising a part of the upper plate portion 26.

  7 and 11 show another embodiment. This embodiment is characterized in that the surrounding edge 17C is suspended and supported on the purlin girder 1 by using a hanging metal fitting 30 that can be attached to and detached from the surrounding edge 17C. The hanging metal fitting 30 is manufactured by bending a single iron plate, and as shown in FIG. 11, an upper plate portion 31, a lower plate portion 32 bent continuously from one end thereof, and an upper plate portion The locking portion 25 is formed by bending upward from one side edge of the plate portion 31, and a groove portion 33 is formed between the upper and lower plate portions 31 and 32 to insert the upper plate portion 26 of the peripheral edge 17 </ b> C. ing.

  According to this configuration, as shown in FIG. 11, the engaging portion 25 of the hanging bracket 30 is hooked on the lower lip 1 b of the purlin 1, while the peripheral edge 17C is applied to the upper flange portion 11 a of the beam steel frame 11. In this state, by sliding the suspension fitting 30 along the lower lip 1b, the upper plate portion 26 of the peripheral edge 17C is inserted into the groove portion 33 of the suspension fitting 30 as shown in FIG. The surrounding edge 17C can be suspended and supported by the purlin 1.

  And the side edge (width direction edge part) of the ceiling material 16 is inserted in the fitting part b of the surrounding edge 17C, and the next ceiling material 16 is attached to the side edge (width direction edge part) on the opposite side of the ceiling material 16 concerned. While being connected and suspended and supported by the purlin girder 1 via the hanging metal fitting 14, this operation is repeated from the left to the right in FIGS. 2 and 6, and then, as shown in FIG. The peripheral edge 17C is suspended and supported by the hanging metal fitting 30 hooked on the lip 1b, and the end of the last ceiling member 16 is inserted into the fitting portion b of the peripheral edge 17C so that the beam steel frame 11 and the ceiling member 16 are connected. The gap can be eliminated.

  8 and 12 show another embodiment, which is characterized in that a peripheral edge 17D formed with a fitting portion b into which an end portion of the ceiling material 16 is slidable in the in-plane direction is formed in a Z-shaped cross section. is there. The peripheral edge 17D is manufactured by bending a single iron plate. As shown in FIG. 12, the upper plate portion 34 whose front end is bent in a two-layered state, and a right angle downward from the other end. And a lower plate portion 36 bent at a right angle in the opposite direction from the lower end thereof, and the upper portion of the lower plate portion 36 is configured as the fitting portion b. A bent piece 37 serving as a guide when the ceiling material 16 is inserted is provided at the tip of the lower plate portion 36. The locking portion 25 is integrally connected to the peripheral edge 17C. Specifically, the locking portion 25 is formed by an L-shaped plate fixed to the upper surface of the upper plate portion 34 by means such as riveting. The rising plate portion is bent by field work and is engaged with the lower lip 1b of the purlin girder 1. However, even if the upper plate portion 34 is partially cut and raised, the locking portion 25 is formed. Good.

  According to the above configuration, since the fitting portion b into which the end portion of the ceiling material 16 is slidably inserted in the in-plane direction is formed in the surrounding edges 17A, 17B, 17C, and 17D, the beam steel frame that supports the purlin beam 1 Even in the case where a gap is generated between the end of the ceiling material 16 and 10 and 11, the gap can be eliminated by adjusting the amount of insertion of the end of the ceiling material with respect to the fitting portion b. it can.

  Moreover, one of the fitting portions a formed on the peripheral edges 17A and 17B is inserted into the upper flange portion 10a, and the end of the ceiling member 16 is inserted into the other fitting portion b, or the peripheral edges 17C and 17D are connected. Simple work that does not require welding or screwing, such as inserting the side edge of the ceiling material 16 into the formed fitting portion b and engaging the locking portion 25 with the lower lip 1b of the C-shaped steel purlin 1 Can be installed quickly.

  In this way, the gap between the beam steel frames 10 and 11 and the ceiling member 16 can be closed by a simple operation that does not require welding or screwing. For example, the upper surface of the existing asbestos slate roof A is concealed by the folded plate roof B. Before asbestos containment, the bottom surface of the existing asbestos slate roof A can be easily and quickly covered with the ceiling C without any gaps, thus preventing scattering of asbestos to the indoor side when constructing the folding roof. As a result, it is extremely effective as an asbestos countermeasure.

  The peripheral edges 17A, 17B, 17C, and 17D may be manufactured by bending or extruding (drawing) aluminum.

It is a schematic perspective view explaining the accommodation structure of the beam steel frame and ceiling material in the roof for roof repair which concerns on this invention. It is a general | schematic longitudinal cross-sectional side view of the principal part seen from the direction orthogonal to the purlin girder. It is a schematic longitudinal cross-sectional front view of the ridge part seen from the longitudinal direction of the purlin girder. It is a vertical front view of the principal part. It is a vertical front view of the principal part. It is a vertical side view of the principal part. It is a vertical side view of the principal part which shows other embodiment. It is a vertical side view of the principal part which shows other embodiment. It is a perspective view of a surrounding edge. It is a perspective view of a surrounding edge. It is a perspective view which shows the other example of a surrounding edge. It is a perspective view which shows the other example of a surrounding edge.

Explanation of symbols

C Ceiling a, b Fitting part 1 Purlin beam 10, 11 Beam steel frame 10a, 11a Upper flange part 16 Ceiling material 17A, 17B, 17C, 17D Around edge

Claims (5)

  Below the existing roof constructed by laying roofing material on steel purlin girders, in the roof renovation ceiling constructed by tilting the ceiling along the existing roof, the beam steel frame that supports the purlin girders and the lower part of the purlin girder Between the installed ceiling material, a surrounding edge with a fitting part that inserts the end of the ceiling material in a slidable manner in the in-plane direction is provided, and the gap between the beam steel frame and the ceiling material is closed with the surrounding edge. This is a storage structure of beam steel frames and ceiling materials for roof repair ceilings.   Under the existing roof constructed by laying roofing material on a steel purlin girder, on the roof repair roof constructed with a slanted ceiling along the existing roof, the beam steel frame made of H-shaped steel that supports the purlin girder Between the upper flange part and the ceiling material attached to the lower part of the purlin girder, the fitting part that inserts the upper flange part slidably in the in-plane direction and the fitting that inserts the end part of the ceiling material slidably in the in-plane direction A structure for housing the beam steel frame and the ceiling material in the roof for roof repair, characterized in that a surrounding edge formed with a part is provided, and a gap between the upper flange portion of the beam steel frame and the ceiling material is closed with the surrounding edge.   An H-shaped steel beam that supports the purlin girder in the ceiling for roof refurbishment, in which a ceiling inclined along the existing roof is constructed below the existing roof constructed by laying roofing material on a C-shaped steel purlin girder Between the upper flange part of the steel frame and the ceiling material attached to the lower part of the purlin girder, the edge where the end of the ceiling material is slidably inserted in the in-plane direction is formed. A ceiling for roof repair, which is provided in a state where it is suspended and supported by a purlin girder via a latching portion that engages with a lip, and the gap between the upper flange portion of the beam steel frame and the ceiling material is closed around the periphery. Of steel beam and ceiling material in the building.   The storage structure of the beam steel frame and ceiling material in the roof for roof repair of Claim 3 with which the latching | locking part is integrally provided in the surrounding edge.   The storage structure of the beam steel frame and ceiling material in the roof for roof repair of Claim 3 with which the latching | locking part is provided in the metal fitting which can be attached or detached with respect to a surrounding edge.

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