JP2016121464A - Mounting structure of extrusion molding cement plate, and vertical mounting structure and horizontal mounting structure thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting structure of an extrusion molding cement plate which can enhance the mounting strength of an extrusion molding cement plate without causing cost increase and reducing transportability, workability or processability, and a vertical mounting structure and a horizontal mounting structure thereof.SOLUTION: In a mounting structure 1 of an extrusion molding cement plate, an extrusion molding cement plate 2 in which a plurality of hollow parts 3 formed in rectangular cross section are arranged side by side in one direction is attached to a building frame of a building through a substrate material. In the mounting structure, a holding member 8 is installed in the hollow part 3 and is screwed to a mounting bolt 7 and holds a rear side base material 2b of the extrusion molding cement plate 2 from the inside. The holding member comprises a separation part 12 separated from the rear side base material 2b and a contact part 13 contacting with the rear side base material 2b in the neighborhood of both partition walls 4 and 4, and the force the rear side base material 2b receives from the holding member 8 is released to the sides of each partition wall 4.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an extruded cement board mounting structure for mounting an extruded cement board having a plurality of hollow portions arranged in parallel in one direction to a building frame, and a vertical and horizontal mounting structure using the mounting structure. In particular, the present invention relates to a mounting structure used when a high mounting strength is required at an installation location of an extruded cement board.

  Extruded cement boards are widely used as building exterior materials because they are lightweight and have high strength. In an outer wall structure that uses an extruded cement board, an angle that serves as a base material is generally fixed to the housing of a building, and a Z clip or the like that is fastened to the back of the extruded cement board is locked to the angle. A molded cement board is attached.

  Depending on the area where the building is built, the outer wall of the building is exposed to strong wind and rain, and the external environment that the outer wall receives in the high-rise part of the building is more severe than in the low-rise part. In particular, since the roof blindfold wall provided at the top of the building is an open outer wall, the wind pressure on the outer wall is large, and the outer wall needs to withstand not only negative pressure but also wind pressure from the inside.

  The installable part and dimensions of the extruded cement board are determined by three factors: the strength of the extruded cement board, the rigidity of the extruded cement board, and the mounting strength of the extruded cement board. When an extruded cement board is used for the roof blindfold wall where a large wind pressure is applied, it is determined whether or not the three components can be used mainly based on the strength of the mounting strength. Therefore, in such a situation, it is desired to further improve the mounting strength of the extruded cement board.

  In Patent Document 1, as a structure for improving the mounting strength of an extruded cement board, it has a pair of inclined surfaces that approach the cross-sectional shape of the extruded cement board as it goes to the back surface, and a metal fitting to which a mounting bolt is screwed. A mounting structure is described in which the shape is in contact with both inclined surfaces. In this structure, by using an extrusion-molded cement board having a hollow portion having a special cross-sectional shape, the shear area of the extrusion-molded cement board that receives a force from the receiving metal is increased, and the mounting strength is improved.

  In patent document 2, the raising member is provided along the short side part of a rectangular receiving metal object, and the receiving metal object is fastened to the extrusion-molded cement board through this raising member. In this structure, the metal fitting is fastened so as to straddle the slight unevenness of the surface of the hollow portion, thereby preventing a reduction in mounting strength due to the unevenness.

JP 2009-133107 A Japanese Patent Laid-Open No. 9-60192

  A general metal receiving plate has a flat plate shape, and when a force is applied, a strong force acts in the vicinity of the bolt hole of the extruded cement plate. Therefore, it is necessary to design the structure so as not to cause damage starting from the bolt hole. Further, if the cut pieces after drilling holes for passing the mounting bolts remain between the receiving metal and the extruded cement board, the force may not be applied evenly. This leads to a decrease in the proof stress of the part holding the metal fitting, and care must be taken when drilling.

  In the structures described in Patent Document 1 and Patent Document 2, it is considered that these problems are solved. However, in the structure of Patent Document 1, an extruded cement board having a hollow portion having a special cross-sectional shape must be manufactured, resulting in an increase in cost. With this structure, a thick part is also formed, and the weight of the extruded cement board increases, which may lead to a decrease in transportability and workability. If the position of the bolt hole on the extruded cement plate is shifted, the receiving metal will not be able to contact the inclined surface of the hollow part, so that the desired fastening strength may not be obtained. There is also a drawback that processing takes time.

  In the structure of Patent Document 2, although the lowering of the mounting strength is prevented by the presence of the raising member, it is difficult to maintain a high mounting strength against negative pressure on the extruded cement board for a long period of time. For this reason, there is a problem in that use on a roof blindfold wall, which requires a high mounting strength against negative pressure over a long period of time, is limited.

  In view of the problems of the prior art, the present invention is an extruded cement board that can increase the mounting strength of the extruded cement board without incurring an increase in cost and without reducing the transportability, workability, and workability. An object of the present invention is to provide a vertical mounting structure and a horizontal mounting structure.

  The extrusion-molded cement board mounting structure of the present invention is an extrusion-molded cement in which an extrusion-molded cement board in which a plurality of hollow portions formed in a rectangular cross section are arranged in one direction is attached to a building frame via a base material. In the plate mounting structure, a clip that is fastened to the base material, a mounting bolt that penetrates the clip and penetrates any one of the hollow portions from the back side of the extruded cement plate, and is provided in the hollow portion. An extrusion cement board mounting structure including a clamping member that is screwed with the mounting bolt and clamps the back side base material of the extrusion cement board from the inside, wherein the clamping member is connected to the mounting bolt. A separation portion having a screwing portion and spaced apart from the back-side base material; and the back-side base material in the vicinity of the both bulkheads extending to the partition walls on both sides of the hollow portion in the spacing portion. And it is characterized in that comprising the abutment portion abutting.

  If the mounting structure of the extrusion-molded cement board of this invention is used, since the general extrusion-molding cement board which has a hollow part with a rectangular cross section can be used, it does not become a cost increase. In the mounting structure of the present invention, a thick portion is not formed on the extruded cement board, the weight of the extruded cement board does not increase, and transportability and workability do not deteriorate. The holding member includes a separation portion that has a screwing portion that is screwed to the mounting bolt and is separated from the back side base material, and a contact portion that abuts the back side base material in the vicinity of both partition walls of the hollow portion. Therefore, high positioning accuracy of the bolt hole of the extrusion-molded cement board is not required, and it does not take time to process the bolt hole. Since the holding member has a contact portion that contacts the back side base material in the vicinity of both partition walls of the hollow part, it is the hollow part that presses the back side base material with the holding member when negative pressure or the like is applied. It becomes the vicinity of both partition walls. Therefore, high mounting strength can be obtained.

  Examples of the clamping member include various types. For example, the clamping member is formed in a rectangular shape in plan view having long and short sides, and the contact portion is configured as a long side portion of the clamping member. The thing which a contact part exists along the both said partition is mentioned. By using such a clamping member, the cost can be suppressed and the mounting strength can be effectively improved.

  The extrusion-molded cement board mounting structure of the present invention includes a vertical-mounting structure in which the extruded-molded cement boards are arranged in the vertical direction, which is the vertical direction, and a horizontal-mounting structure in which the extruded cement boards are arranged in the horizontal direction, which is the horizontal direction. Can be applied to.

  The vertically attached structure of the present invention is a vertically attached structure in which the hollow portion of the extruded cement board extends in the vertical direction, and the upper side of the extruded cement board via the first base material connected to the upper housing. A lower structure for fixing the lower side of the extruded cement plate via a second base material connected to the lower casing, and the upper casing and the lower casing are connected to each other. A deflection suppression auxiliary member for suppressing deflection between the two casings, and an extrusion cement board mounting structure for fixing the upper and lower sides of the extrusion cement board to the first and second base materials, respectively. The extruded cement board mounting structure is the above-described extruded cement board mounting structure of the present invention.

  If it is set as the vertically attached structure of this invention, since it can be used for the general extrusion-molded cement board which has a cross-sectional rectangular hollow part, it does not become a cost increase. In the vertically attached structure of the present invention, a thick portion is not formed on the extruded cement board, the weight of the extruded cement board does not increase, and transportability and workability do not deteriorate. Since the holding member has a screwed part with the mounting bolt and is separated from the back side base material, and a contact part that comes into contact with the back side base material in the vicinity of both partition walls of the hollow part, High positioning accuracy is not required for the bolt hole of the extrusion-molded cement plate, and it does not take time to process the bolt hole. The clamping member has an abutting portion that abuts against the back side base material in the vicinity of both partition walls of the hollow part, and when the negative pressure or the like is applied, It becomes the vicinity of both partition walls. For this reason, it is possible to perform a vertical installation on a portion requiring high mounting strength.

  The horizontal mounting structure of the present invention is an extruded cement board that fixes the extruded cement board to a base material connected to a housing in a horizontal mounting structure in which a hollow portion of the extruded cement board extends in the horizontal direction. The extrusion-molded cement board attachment structure is the above-described extrusion-molded cement board attachment structure of the present invention.

  If it is set as the horizontal mounting structure of this invention, since it can be used for the general extrusion-molded cement board which has the hollow part formed in the cross-sectional rectangle shape, it does not become a cost increase. In the horizontal mounting structure of the present invention, a thick portion is not formed on the extruded cement board, the weight of the extruded cement board does not increase, and transportability and workability do not deteriorate. Since the holding member has a screwed part with the mounting bolt and is separated from the back side base material, and a contact part that comes into contact with the back side base material in the vicinity of both partition walls of the hollow part, High positioning accuracy is not required for the bolt hole of the extrusion-molded cement plate, and it does not take time to process the bolt hole. The clamping member has an abutting portion that abuts against the back side base material in the vicinity of both partition walls of the hollow part, and when the negative pressure or the like is applied, It becomes the vicinity of both partition walls. For this reason, it is possible to perform a horizontal installation on a portion requiring a high mounting strength.

  According to the present invention, it is not necessary to use a special extrusion-molded cement board, the weight of the extrusion-molded cement board does not increase, and it does not take time and effort to process the bolt hole, so that the cost is not increased, the transportability, the construction Does not decrease the workability and workability. At the same time, pressing the back side substrate with the clamping member is in the vicinity of both the partition walls of the hollow portion, so that the mounting strength can be remarkably improved, and it can be used for a long time in a harsh usage environment such as a rooftop blindfold wall. Can be used across.

It is sectional drawing which shows the attachment structure of the extrusion molding cement board which concerns on one Embodiment of this invention. It is the figure which looked at the clamping member used for the attachment structure of the extrusion-molded cement board of this invention from 3 directions. It is a perspective view of the clamping member provided in the hollow part. (A) And (b) is a front view in the hollow part which shows the modification from which a clamping member differs, respectively, (c) is a top plan view in a hollow part which shows the other modification of a clamping member. It is a longitudinal cross-sectional view which shows 1st Embodiment of the vertical attachment structure of this invention. It is the figure which looked at the upper side of the vertical attachment structure of FIG. 5 from the back side of the extrusion-molded cement board. It is the sectional view on the AA line of FIG. It is a longitudinal cross-sectional view which shows 2nd Embodiment of the vertical attachment structure of this invention. It is the figure which looked at the lower side of the vertical attachment structure of FIG. 8 from the back side of the extrusion-molded cement board. It is a longitudinal cross-sectional view which shows 1st Embodiment of the horizontal mounting structure of this invention. It is the BB sectional view taken on the line of FIG. It is a longitudinal cross-sectional view which shows 2nd Embodiment of the horizontal mounting structure of this invention. It is the figure which looked at the horizontal attachment structure of FIG. 12 from the back side of the extrusion-molded cement board.

  Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view showing an extruded cement board mounting structure 1 according to an embodiment of the present invention. The extruded cement board 2 used in the extruded cement board mounting structure 1 is manufactured by extruding a mixture of water, cement, aggregate, fiber, etc. with an extruder and cutting it to a predetermined size. It is. In the extruded cement board 2, a plurality of hollow portions 3 formed in a rectangular cross section are configured in parallel to each other in the longitudinal direction that is the extrusion direction. The plurality of hollow portions 3 are configured to form a plurality of partition walls 4 that connect the front-side base material 2a and the back-side base material 2b of the extruded cement plate 2.

  The extrusion-molded cement board mounting structure 1 is a structure in which an extrusion-molded cement board 2 is attached to a building frame via a base material 5. The extrusion cement board mounting structure 1 includes either a clip 6 to be fastened to the base material 5 and a spring washer 15 and a washer 16 that are inserted through the clip 6 from the back side of the extrusion cement board 2. The mounting bolt 7 that penetrates the hollow portion 3 and a clamping member 8 that is provided in the hollow portion 3 and screwed with the mounting bolt 7 are mainly configured.

  For example, the extrusion-molded cement board 2 is attached as follows. The clamping members 8 are respectively arranged in the hollow portions 3 at predetermined positions of the extrusion-molded cement board 2, the mounting bolts 7 are passed through the clip 6 and the back-side base material 2 b, and the mounting bolts 7 and the clamping members 8 are connected to the back side base. The clip 6 is temporarily fixed at the same time as the material 2b is sandwiched. The base material 5 is fixed to the base material 5 by engaging the clip 6 temporarily fixed to the base material 5 fixed on the housing side, tightening the mounting bolt 7, and sandwiching the back-side base material 2 b of the extrusion-molded cement board 2 together with packing or the like. The extrusion cement board 2 is attached.

  FIG. 2 is a view of the clamping member 8 used in the extruded cement board mounting structure 1 of the present invention as seen from three directions, and FIG. 3 is a perspective view of the clamping member 8 provided in the hollow portion 3. The clamping member 8 of the present embodiment is formed by bending a metal plate having a required thickness in a rectangular shape in plan view into a substantially U-shaped cross section by pressing.

  The clamping member 8 has a threaded portion 9 that is screwed with the mounting bolt 7, and a spacing portion 12 that is spaced from the back-side base material 2 b, and extends toward the partition walls 4 on both sides of the hollow portion 3 in the spacing portion 12. The contact portion 13 is provided in the vicinity of the partition walls 4 and 4 and contacts the back side base material 2b from the inside. In this embodiment, the outer part 11 is comprised through the bending location on the both sides of the short side direction of the inner part 10 in which the screw hole as the screwing part 9 was formed. The dimension of each part of the clamping member 8 should just be what suits the specification of the extrusion-molded cement board 2. FIG.

  The separation portion 12 that is separated from the back-side base material 2 b is composed of an inner portion 10 and a part of both outer portions 11. The abutting portions 13 that abut on the back-side substrate 2b are present on both sides of the spacing portion 12 in the short-side direction, and are configured by both outer edge portions 11g and 11g serving as outer edges along the longitudinal direction of the holding member 8. Yes. Accordingly, the contact portion 13 is configured as a long side portion of the sandwiching member 8 and exists along both the partition walls 4 and 4 of the extruded cement board 2. Since the spacing member 12 is present in the clamping member 8, a cavity 14 is formed between the clamping member 8 and the back-side base material 2b as shown in FIG. 1, and the clamping member 8 serves as the back-side base material 2b. Only the contact portion 13 is in contact with the contact portion.

  It is important that the abutting portion 13 of the holding member 8 exists in the vicinity of both the partition walls 4 and 4 of the hollow portion 3. When the negative pressure is applied to the extruded cement board 2 and a force is generated in the pulling direction of the mounting bolt 7, it is in the vicinity of both the partition walls 4, 4 that press the back side substrate 2 b with the clamping member 8. The presence of the abutting portion 13 in the vicinity of both the partition walls 4 and 4 makes the force applied to the portion close to the bolt hole 29 of the back-side base material 2b out of the force received by the extruded cement board 2 from the clamping member 8 as much as possible. suppress. At the same time, the force applied to each partition wall 4 is increased by releasing the received force as much as possible to each partition wall 4 side. Each partition 4 side here means a portion close to each partition 4 such as the abutting portion 30 of the back side substrate 2b and each partition 4.

  Each partition wall 4 has a large width dimension in substantially the same direction as the force received from the clamping member 8 (the thickness direction of the back-side substrate 2b), and has a high proof stress against the received force. Accordingly, by releasing the force to the respective partition walls 4 side, cracks and the like of the extruded cement board 2 can be prevented over a long period of time. Thereby, the attachment yield strength of the extrusion-molded cement board 2 can be improved markedly.

  The distance t <b> 1 between the contact portion 13 and each partition 4 is better as it is closer to the hollow portion. However, if the holding member 8 is formed large in order to make the contact portion 13 very close to the partition wall 4, the holding member 8 is placed in the hollow portion 3. There is a risk that the workability at the time of disposing the battery in the space may be reduced. Therefore, it is preferable that the clamping member 8 has a dimension in consideration of these points.

  The distance t1 between the contact part 13 and each partition wall 4 is preferably 1/10 to 1/4 with respect to the width W of the hollow part 3, and more preferably 1/8 to 1 with respect to the width W of the hollow part 3. / 5. If the distance t1 between the abutting portion 13 and each partition wall 4 is larger than 1/4 with respect to the width W of the hollow portion 3 and the abutting portion 13 is far from each partition wall 4, the bolt hole of the back side substrate 2b The force applied to the portion close to 29 becomes large, and the high mounting strength of the extruded cement board 2 cannot be obtained.

  The length n1 of the contact portion 13 along each partition wall 4 is preferably 50 mm to 80 mm, more preferably 60 mm to 70 mm, although it depends on the back side base material 2b and the dimensions of each partition wall 4 and the like. If the length n1 of the contact part 13 is smaller than 50 mm, force will concentrate on the contact part of the back side base material 2b, and a high mounting strength cannot be obtained. The longer the abutment portion 13 is along each partition 4, the greater the force released to the partition 4 side, and higher mounting strength can be obtained. On the other hand, if the holding member 8 is made too large in order to make the contact portion 13 long, the weight of the holding member 8 increases and the transportability and the like deteriorate. To decide.

  It is only necessary that the cavity portion 14 is formed between the back side base material 2b and the spacing portion 12, but if the interval t2 between the back side base material 2b and the spacing portion 12 is too narrow, the clamping member 8 is bent. May touch each other. Therefore, it is preferable that the distance t2 between the back-side base material 2b and the separation portion 12 is about 2 mm to 8 mm.

  Since each partition wall 4 of the extrusion-molded cement plate 2 is linear between the front surface side base material 2a and the back surface side base material 2b, a large force can be released to each partition wall 4 side, so that the hollow portion 3 Is essential to have a rectangular cross section. If the hollow portion has an irregular cross-section, there will be a partition portion that is far from the contact portion of the back-side base material 2b, and it will be difficult to suppress the force applied to the back-side base material 2b.

  The thickness n2 of the back-side base material 2b of the extruded cement board 2 varies depending on the total thickness of the extruded cement board. For example, in the case of an extruded cement board having a total thickness of 50 mm to 100 mm, 12 mm to 18 mm is preferable, and more preferable. Is 14 mm to 16 mm. The thickness n3 of each partition wall 4 is preferably 1/7 to 1/3, more preferably 1/5 to 1/3 with respect to the width W of the hollow portion 3. The relationship between the distance t1 between the contact portion 13 and each partition wall 4, the length n1 of the contact portion 13, the thickness n2 of the back-side substrate 2b, and the thickness n3 of each partition wall 4 is (n2 + n3) / 2 ≧ t1 and n2. It is preferable to satisfy the relational expression of x4 ≦ n1. The type and size of the extruded cement plate 2 to which the mounting structure 1 of the extruded cement plate can be applied are not limited. However, if the extruded cement plate 2 is composed of the above dimensions, the mounting strength can be improved more effectively. Can be made.

  As examples and comparative examples, the breaking load was measured by a pull-out test when a normal square nut, which is a rectangular plate material, was used for the holding member and when the holding member 8 of the present embodiment was used. As a result, the average value of the normal square nut was 4.53 N, and the average value of the clamping member 8 of the present embodiment was 6.31 N. When the clamping member 8 of the present embodiment was used, a breaking load that was 1.39 times that of a normal square nut could be obtained. In addition, the total thickness of the extrusion-molded cement board used for the Example is 60 mm, n2 is 14 mm, the width | variety of a hollow part is 56 mm, and n3 is 14 mm. The clamping member 8 of this embodiment used as an example has a thickness of 6 mm, a width of 40 mm, a length of 60 mm, a distance of t1 of 9 mm, a distance of t2 of 3 mm, and a normal square nut as a comparative example has a thickness of 6 mm and a width. What used 30 mm and a length of 60 mm was used.

  4 (a) to 4 (c) show modified examples of the clamping member. FIGS. 4A and 4B are front views in the hollow portion showing different modifications of the holding member, respectively, and FIG. 4C is a plan view in the hollow portion showing another modification of the holding member. The sandwiching member 20 shown in FIG. 4A is composed of a substrate 21 serving as a separation portion and a thin plate member 22 serving as a contact portion fixed to both sides of the substrate 21, and is long along each partition wall 4. It is formed in a rectangular shape in plan view. The clamping member 23 shown in FIG. 4 (b) is formed by pressing as in the embodiment of FIG. 1, and includes a main body portion 24 serving as a separation portion, and contact leg portions on both sides of the main body portion 24. 25, and it is possible to secure a larger contact area with the back-side base material 2b.

  A clamping member having a larger contact area with the back-side substrate 2b is a modification shown in FIG. The sandwiching member 26 includes a substrate 27 serving as a separation portion and a thin plate member 28 serving as a contact portion fixed to both sides of the substrate 27. It is formed long along each partition 4 beyond the length of 27. By using the holding member 26 having a larger contact area, the mounting strength can be further increased. The clamping member is not limited to a rectangular shape in plan view, and may be formed in other shapes such as a polygonal shape in plan view other than a rectangle, or a partially arc shape in plan view.

  Next, an example in which the extrusion-molded cement board mounting structure 1 is applied to a vertically-stretched mounting structure will be described. FIG. 5 is a longitudinal sectional view showing a first embodiment of a vertically attached mounting structure of the present invention using an extruded cement board attaching structure 1. In the following description, members that are the same as those described in the extrusion-molded cement board mounting structure 1 are described using the same reference numerals. FIG. 6 is a view of the upper side of the vertical attachment structure 35 of FIG. 5 as viewed from the back side of the extruded cement plate 2. 7 is a cross-sectional view taken along line AA in FIG.

  The vertically attached structure 35 is an attached structure of the extrusion-molded cement board 2 in which the hollow portion 3 extends in the vertical direction, which is the vertical direction. In this embodiment, the first base material 37 connected to the upper housing 36 is provided. An upper structure 38 for attaching the upper side 2U of the extruded cement board 2 via a lower structure 41 for attaching a lower side 2S of the extruded cement board 2 via a second base material 40 connected to the lower casing 39; A deflection restraining auxiliary member 42 that couples the upper housing 36 and the lower housing 39 to suppress deflection between the two housings 36, 39, and the upper side 2U and the lower side 2S of the extrusion-molded cement board 2, respectively, And an extrusion-molded cement board mounting structure 1 to be fixed to the second base materials 37 and 40.

  The clip 6 used in the present embodiment is a clip similar to that shown in the example of FIG. 1 and uses two mounting bolts 7. As shown in FIG. 6, the clip 6 includes a base portion 31 and a locking portion 32 extending from the base portion 31. The base portion 31 is formed with a notch portion 17 through which one mounting bolt 7 is passed, and the locking portion 32 is formed with an inclined portion 18 on one side to prevent interference with other members. In attaching the clip 6, the clip 6 is rotated around the other mounting bolt 7, the cut portion 17 is hooked on the other mounting bolt 7, and both the mounting bolts 7 and 7 are fastened and fastened. To do. The shape of the clip 6 is not limited. Of course, a W-shaped Z clip, a Z clip using one mounting bolt, and the like can also be used.

  FIG. 5 shows the uppermost part as the upper structure 38 and the intermediate part as the lower structure 41. In the uppermost structure, the L-shaped angle 43 is fixed to the flange 36s on the lower side of the H-shaped steel material 36 which is the upper casing. The first base material 37 extending in the horizontal direction is fixed to the L-shaped angle 43. A plurality of clips 6 fastened to the extruded cement board 2 are engaged with the first base material 37 and the mounting bolts 7 are tightened, so that the upper side 2U of the extruded cement board 2 is the first base material 37. It is fixed to. In this uppermost structure, the extruded cement board 2 is attached to the upper H-shaped steel material 36, which is the upper casing, by the above-described extruded cement board mounting structure 1.

  In the structure of the intermediate portion, an L-shaped angle 44 is fixed to an upper flange 39u of the H-shaped steel material 39 serving as a lower casing, and a long support angle 45 is fixed to the L-shaped angle 44 in the vertical direction. The support angle 45 is fixed with a receiving angle 40 as a second base material extending long in the horizontal direction. The receiving angle 40 supports the lower part of the extruded cement plate 2. A packing 19 is provided between the receiving angle 40 and the back side base material 2 b of the extruded cement board 2. A plurality of clips 6 fastened to the extruded cement board 2 are engaged with the receiving angle 40 that is the second base material, and the mounting bolts 7 are tightened so that the lower side 2S of the extruded cement board 2 is the first. 2 It is fixed to a receiving angle 40 which is a base material. In this structure of the intermediate portion, the extruded cement board 2 is attached to the lower H-shaped steel material 39 which is the lower casing by the above-described extruded cement board mounting structure 1.

  A deflection suppressing auxiliary member 42 that connects the lower flange 36 s of the H-shaped steel material 36 that is the upper housing and the upper flange 39 u of the H-shaped steel material 39 that is the lower housing is fixed. . As a result, the amount of deflection of the first base material 37 and the second base material 40 can be reduced, and the clip 6 can be effectively prevented from being damaged due to deflection or twisting of the base materials 37 and 40.

  FIG. 8 is a longitudinal sectional view showing a second embodiment of the vertically attached structure of the present invention, and FIG. 9 is a view of the lower side of the vertically attached structure 50 of FIG. It is. FIG. 8 shows an intermediate part as the upper structure 51 and a lowermost part as the lower structure 52. In the structure of the intermediate part, an L-shaped angle 54 is fixed to a flange 39s on the lower side of the H-shaped steel material 39 which is an upper casing. The first base material 55 extending in the horizontal direction is fixed to the L-shaped angle 54. The plurality of clips 6 fastened to the extruded cement board 2 are engaged with the first base material 55 and the mounting bolts 7 are tightened so that the upper side 2U of the extruded cement board 2 is attached to the first base material 55. It is fixed. In this structure of the intermediate portion, the extruded cement board 2 is attached to the upper H-shaped steel material 39 which is the upper casing by the above-described extruded cement board mounting structure 1.

  In the lowermost structure, L-shaped angles 57 and 57 are fixed to the upper and lower flanges 56u and s of the H-shaped steel material 56 which is the lower casing, and these L-shaped angles 57 and 57 are vertically arranged. A long support angle 58 is fixed. The support angle 58 is fixed with a receiving angle 59 as a second base material extending long in the horizontal direction. The lower portion of the extrusion-molded cement board 2 is supported on the receiving angle 59. A packing 19 is provided between the receiving angle 59 and the back-side base material 2 b of the extruded cement board 2. A plurality of clips 6 fastened to the extruded cement board 2 are engaged with the receiving angle 59 which is the second base material, and the mounting bolts 7 are tightened so that the lower side 2S of the extruded cement board 2 is the first. 2 It is fixed to a receiving angle 59 which is a base material. In this lowermost structure, the extruded cement board 2 is attached to the lower H-shaped steel material 56 which is the lower casing by the above-described extruded cement board mounting structure 1.

  A deflection suppressing auxiliary member 60 that connects the lower flange 39s of the H-shaped steel member 39 that is the upper housing and the upper flange 56u of the H-shaped steel material 56 that is the lower housing is fixed. . As a result, the amount of deflection of the first base material 55 and the second base material 59 can be reduced, and the clip 6 can be effectively prevented from being damaged due to the deflection and twisting of the base materials 55 and 59.

  An example in which the extruded cement board mounting structure 1 is applied to a horizontal mounting structure will be described below. 10 is a longitudinal sectional view showing a first embodiment of the horizontal mounting structure of the present invention, and FIG. 11 is a sectional view taken along line BB in FIG. The horizontal mounting structure is a mounting structure of the extruded cement board 2 in which the hollow portion 3 extends in the horizontal direction, which is the left-right direction. In this embodiment, the extruded cement board is fixed to the base material connected to the casing. It has a structure to do.

  10 and 11 show the structure of the uppermost part of the building. In this horizontal mounting structure 65, a plate material 67 is fixed to an H-shaped steel material 66 that is a casing, and two base materials that extend long in the vertical direction. 68 and 68 are fixed so as to sandwich the plate material 67 from the left and right. A packing 19 is provided between the base materials 68 and 68 and the back-side base material 2 b of the extruded cement board 2. A plurality of clips 6 fastened to the two extruded cement plates 2 and 2 oriented in the lateral direction are locked to the base materials 68 and 68. At the same time, the mounting bolt 7 is tightened to fix the two extruded cement plates 2 and 2 to the base materials 68 and 68 so that they are abutted against each other. In this uppermost structure, the extruded cement board 2 is attached to the H-shaped steel material 66 which is a casing by the above-described extruded cement board mounting structure 1.

  FIG. 12 is a longitudinal sectional view showing a second embodiment of the horizontal mounting structure of the present invention, and FIG. 13 is a view of the horizontal mounting structure 69 of FIG. 12 viewed from the back side of the extruded cement board 2. 12 and 13 show the structure at the bottom of the building. A plate material 71 is fixed to an H-shaped steel material 70 as a casing, and two base materials 72 and 72 extending in the vertical direction are the plate materials. 71 is fixed so as to be sandwiched from the left and right. A plurality of clips 6 fastened to the two extruded cement plates 2 and 2 oriented in the lateral direction are locked to the base materials 72 and 72. At the same time, the mounting bolt 7 is tightened to fix the two extruded cement plates 2 and 2 to the both base materials 72 and 72 so as to abut each other. A receiving angle 73 is fixed to the lower ends of both the base materials 72, 72, and the lower portions of the two extruded cement plates 2, 2 are supported by the receiving angle 73. In this lowermost structure, the extruded cement board 2 is attached to the H-shaped steel material 70 which is a casing by the above-described extruded cement board mounting structure 1.

  If the mounting structure 1 of the extrusion-molded cement board of the said embodiment is used, since the clamping member 8 has the contact part 13, when a negative pressure or the wind pressure from the inside is applied to the extrusion-molded cement board 2, it is a clamping member 8 presses the back-side base material 2b in the vicinity of both the partition walls 4 and 4. By making the contact portion 13 be in the vicinity of both the partition walls 4, 4, the force applied to the portion near the bolt hole 29 of the back-side base material 2 b is suppressed as much as possible, and the force received from the clamping member 8 is as much as possible. I can escape to the 4th side. Thereby, a high pulling strength can be obtained, and the mounting strength can be remarkably improved.

  Since a general extruded cement board 2 having a hollow portion 3 formed in a rectangular cross section can be used, the cost is not increased. In the prior art, a thick-walled portion was formed on the extruded cement board in order to improve the mounting strength, but the extruded cement board 2 used in this embodiment is a general one. There is no thick part. Therefore, the weight of the extrusion-molded cement board 2 does not increase, and it is possible to prevent a decrease in transportability and workability.

  The clamping member 8 includes a separation portion 12 and a contact portion 13 that comes into contact with the back-side base material 2b in the vicinity of both the partition walls 4 and 4. Even if there is a slight misalignment, the contact portion 13 remains on the back side. It reliably contacts the substrate 2b. Therefore, high accuracy is not required for positioning of the bolt hole 29 of the extrusion-molded cement board 2, and processing of the bolt hole 29 does not take time.

  Even if cutting scraps remain in the processing of the bolt hole 29 of the back-side base material 2b, the spacing portion 12 of the clamping member 8 is separated from the bolt hole 29, so that the clamping member 8 and the back-side base material 2b No cutting waste is caught between them. For this reason, it is possible to prevent concentration of force due to the remaining cutting waste. Further, by tightening the mounting bolt 7, the force that is always generated on the back-side base material 2 b sandwiched between the clamping member 8 and the clip 6 is also reduced.

  By using such an extrusion-molded cement board mounting structure 1 for a vertical mounting structure and a horizontal mounting structure, it is possible to apply a vertical tension to a site where a high wind resistance is required and a high mounting strength is required, and a horizontal mounting. Construction is possible. As described above, a general extrusion-molded cement board 2 can be used, the weight of the extrusion-molded cement board 2 does not increase, and the processing of the bolt holes 29 does not take time. Therefore, there is no cost increase, and transportability, workability, and workability are not reduced. At the same time, since the force received from the clamping member 8 is released to the both partition walls 4 and 4 side, the mounting strength is improved, and the mounting reliability of the extruded cement board 2 can be remarkably improved. As a result, it is possible to construct the extruded cement board 2 at a site that requires high mounting strength, and the extruded cement board 2 can be used for a long period of time in a harsh environment such as a rooftop blindfold wall. .

  The present invention is not limited to the above embodiment. The disclosed embodiment is an example of the extruded cement board mounting structure, vertical mounting structure, and horizontal mounting structure according to the present invention, and is not restrictive. The vertically attached structure and the horizontally attached structure to which the extruded cement board attaching structure of the present invention is applied are not limited. The clip, the mounting bolt, and other members provided as necessary for the extruded cement board mounting structure may be in any form as long as the effects of the present invention are not impaired.

DESCRIPTION OF SYMBOLS 1 Extruded cement board mounting structure 2 Extruded cement board 2U, 2S Upper side, lower side 2a, 2b Extruded cement board surface side base material, back side base material 3 Hollow part 4 Bulkhead 5 Base material 6 clip 7 mounting bolt 8, 20, 23, 26 clamping member 9 screwing part 10 inner part 11 outer part 12 separating part 13 contact part 14 cavity part 15 spring washer 16 washer 17 notch part 18 inclined part 19 packing 21 substrate 22 Thin plate member 24 Body portion 25 Contact leg portion 27 Substrate 28 Thin plate member 29 Bolt hole 30 Contact portion 31 Base portion 32 Locking portion 35, 50 Vertical attachment structure 36 Upper casing, H-shaped steel (FIG. 5)
37, 55 First base material 38, 51 Upper structure 39 Lower casing, H-shaped steel (FIG. 5)
39 Upper housing, H-shaped steel (Figure 8)
40 Second base material, receiving angle 41, 52 Lower structure 42, 60 Deflection suppression auxiliary member 43, 44, 54, 57 L-shaped angle 45, 58 Support angle 56 Lower housing, H-shaped steel (FIG. 8)
59 Second base material, receiving angle 65, 69 Horizontal mounting structure 66, 70 H-type steel material 67, 71 Plate material 68, 72 Base material 73 receiving angle t1 Distance between the abutting portion and each partition t2 Back side base material Distance from the separation part n1 Length of the contact part n2 Thickness of the back side base material n3 Thickness of the partition

Claims (4)

In the mounting structure of an extruded cement board, in which an extruded cement board in which a plurality of hollow portions formed in a rectangular cross section are arranged in one direction is attached to a building frame via a base material,
A clip fastened to the base material, a mounting bolt that penetrates the clip and penetrates any one of the hollow portions from the back side of the extruded cement plate, and a screw that is provided in the hollow portion and screwed A mounting structure for an extruded cement board comprising a sandwiching member for sandwiching the back side base material of the extruded cement board from the inside,
The clamping member has a threaded portion that is threadedly engaged with the mounting bolt and is spaced from the back-side base material, and extends to the partition walls on both sides of the hollow portion in the spaced portion. An extruded cement board mounting structure comprising: an abutting portion that abuts against the back side base material in the vicinity of both partition walls.   The holding member is formed in a rectangular shape in plan view having long and short sides, the contact portion is configured as a long side portion of the holding member, and the contact portion exists along both the partition walls. The extrusion-molded cement board mounting structure according to claim 1. In the vertical installation structure in which the hollow part of the extruded cement board extends in the vertical direction,
An upper structure for fixing the upper side of the extruded cement plate via a first base material connected to the upper housing;
A lower structure for fixing the lower side of the extruded cement plate via a second base material connected to the lower housing;
A deflection suppressing auxiliary member that connects the upper casing and the lower casing to suppress deflection between the two casings;
An extrusion cement board mounting structure for fixing the upper and lower sides of the extrusion cement board to the first and second base materials, respectively.
3. A vertically attached mounting structure, wherein the extruded cement board mounting structure is the extruded cement board mounting structure according to claim 1 or 2. In the horizontal mounting structure in which the hollow part of the extruded cement board extends in the horizontal direction,
An extrusion cement board mounting structure for fixing the extrusion cement board to the base material connected to the housing;
3. A horizontal mounting structure, wherein the extruded cement board mounting structure is the extruded cement board mounting structure according to claim 1 or 2.

Images