JP6259404B2 - Device for preventing collapse of installations in steel buildings - Google Patents

Description

  As shown in FIG. 1, the present invention includes a ceiling material (4) installed in a steel building and a store installation such as a product shelf in the store made of a steel building, and a machine such as machinery in the factory. The present invention relates to a device for preventing the collapse of an installation in a steel building such as an installation (4a).

  Conventionally, installations such as ceiling materials and equipment in steel buildings having steel roof frames (2) arranged at various inclination angles according to the gradient of the roof material (1) are earthquakes, etc. Although there is no effective collapse prevention device for preventing collapse due to the external pressure, for example, there is a prior art related to Japanese Patent No. 3817346 as a ceiling material fall prevention device. This prior art will be described with reference to FIG. 14.The upper surface of a steel roof frame (2) disposed at various inclination angles according to the gradient of the roof material (1) such as a roof base or a roof board. In addition, the steel purlin (3) is fixed by a fixture (11) orthogonal to the above. Then, a plate-like first member (12) that is directly attached to the steel roof frame (2) and a plate-like second member (13) to which the ceiling collapse prevention suspension bolt (14) is attached. The two members (13) are pivotally attached to the first member (12) with the central portion O as the center of rotation. Thus, the ceiling collapse prevention suspension bolt (14) is suspended vertically on the second member (13). In this prior art, the second member (13) is rotated and oscillated with respect to the first member (12) by an impact or vibration in the event of an earthquake, and is attached to the second member (13) to prevent the ceiling from collapsing. There is a risk that the bolt (14) will swing significantly from side to side, and the ceiling material (4) suspended by the ceiling bolt (4) will be destroyed and dropped due to the swing of the ceiling bolt (14) for preventing the collapse of the ceiling. Further, since the first member (12) and the second member (13) are pivotally attached to the center of rotation, the structure is complicated and the production cost is high. As is well known in the figure, a field edge receiver (16) is attached to the lower end of the ceiling collapse prevention suspension bolt (14) via a hanger (15), and a hook member (16) is attached to the field edge receiver (16). The ceiling edge (18) is attached via 17), and the ceiling material (4) is attached to the ceiling edge (19).

  In the present invention, as in the above-described prior art, a horizontal structure provided on a tilted steel roof frame by wiping the installation material such as a ceiling material from being destroyed or collapsed by an external pressure such as an earthquake. An object of the present invention is to propose an apparatus for preventing the collapse of an installation using a steel purlin as a material and preventing the installation of an installation such as a ceiling material.

  Means for solving the above problems will be described with reference numerals in the embodiments described later. The apparatus for preventing collapse of an installation in a steel building according to claim 1 is mainly as shown in FIG. The steel roof purlin (3), which is a horizontal material, is fixed perpendicularly to the steel roof frame (2), which is arranged at various gradient angles according to the gradient of the roof material (1), and this steel frame A collapse prevention device for preventing the installation members (4) and (4a) installed in the steel building from using the main purlin (3) from collapsing from the installation site under external pressure. The steel purlin (3) has a vertical flange (3a), an upper flange (3b) above it, a lower flange (3c) below it, and top ends of the upper and lower flanges (3b), (3c). It is made of grooved steel with lips consisting of upper and lower lip parts (3e) and (3f) projecting opposite each other across the opening (3d), made of steel frame made of grooved steel with the lips A pivot bracket (6) is integrally projected downward on the mounting bracket (5) that is screwed to the lower flange portion (3c) of the housing (3) and engaged with the lower lip portion (3f). A pair of collapse-preventing braces (7), (7) are pivotally attached to the wearing bracket (6) so that the inclination angle can be changed in a substantially C-shaped downward inclination direction, and the pair of collapse-preventing braces (7) , (7) is connected to the installation object (4) (4a).

  Claim 2 is an apparatus for preventing collapse of an installation in a steel building according to claim 1, wherein the mounting bracket (5) is located under the steel purlin (3) as shown in FIGS. Lower flange part screwing piece (5a) screwed to the flange part (3c) and the lower lip part (3f) of the steel purlin (3) from one end of the lower flange part screwing part (5a) ) Along the upper end of the lower lip portion (3f) and the upper lip engaging portion (5b) and the lower flange portion screwing piece (5a) from the other end of the steel purlin (3) The vertical flange portion (3a) rises along the vertical flange portion (3a) and is fixed to the vertical flange portion (3a). The lower flange screw fixing piece (5a) protrudes downward and can be attached to the pivot shaft (8) parallel to the longitudinal direction of the steel purlin (3). The plate surface (P) is composed of a plate-like pivot mounting bracket (6a) integrally projecting so as to be orthogonal to the longitudinal direction of the steel purlin (3), and the plate-like pivot mounting bracket (6a) A pair of collapsible braces (7), (7) are pivotally attached to the steel purlin (3) via the pivot shaft (8) so that the tilt angle can be changed in the downward tilt direction perpendicular to the longitudinal direction of the steel purlin (3). It consists of the structure which consists of.

  Claim 3 is the apparatus for preventing collapse of an installation in a steel building according to claim 1, wherein the mounting bracket (5) is under the steel purlin (3) as shown in FIGS. Lower flange part screwing piece (5a) screwed to the flange part (3c) and the lower lip part (3f) of the steel purlin (3) from one end of the lower flange part screwing part (5a) ) Along the upper end of the lower lip portion (3f) and the upper lip engaging portion (5b) and the lower flange portion screwing piece (5a) from the other end of the steel purlin (3) The vertical flange portion (3a) rises along the vertical flange portion (3a) and is fixed to the vertical flange portion (3a). The lower flange screw fixing piece (5a) is integrally protruded downward, and the pivot shaft (8) is attached perpendicular to the longitudinal direction of the steel purlin (3). The plate-shaped pivot bracket (6b) is integrally projected so that the plate surface (P) is parallel to the longitudinal direction of the steel purlin (3) so that the plate-shaped pivot bracket ( 6b) A pair of collapsible bracings (7), (7) can be changed in a downward inclination direction parallel to the longitudinal direction of the steel purlin (3) via the pivot shaft (8). It consists of a pivotal structure.

  Claim 4 is the apparatus for preventing collapse of an installation in a steel building according to claim 1, wherein, as shown in FIGS. 10 to 13, the mounting bracket (5) is provided under the steel purlin (3). The lower flange part screwing piece (5a) screwed to the flange part (3c) and the lower lip part (3f) of the steel purlin (3) from one end of the lower flange part screwing part (5a) ) And a lower lip engaging rising piece (5b) that engages with the upper end of the lower lip (3f), and the pivot bracket (6) is connected to the lower flange screw fixing part. The plate surface (P) has a steel purlin (P) so that the pivot shaft (8) can be attached perpendicularly to the longitudinal direction of the steel purlin (3). 3) comprising a plate-like pivot bracket (6b) integrally projecting so as to be parallel to the longitudinal direction of the plate-shaped pivot bracket (6b) via a pivot shaft (8). Collapse preventing brace (7), is made of a structure formed by pivotally mounted can be changed its angle of inclination in a downward inclined direction parallel to the longitudinal direction (7) of the steel-made main building (3).

  Claim 5 is the apparatus for preventing collapse of an installation in a steel building according to claim 1 or 2, wherein, as shown in FIGS. 1 to 5, the brace for collapse prevention (7) is a pivot bracket (6 ) To the pivot shaft (8) provided parallel to the longitudinal direction of the steel purlin (3). The pivot angle can be changed in the downward inclination direction perpendicular to the longitudinal direction of the steel purlin (3). It consists of a bracing base member (7a) to be worn and a strip-like bracing main body (7b) connected to the bracing base member (7a) via a connecting member (9).

  Claim 6 is an apparatus for preventing collapse of an installation in a steel building according to claim 3 or claim 4, wherein the brace for collapse prevention (7) includes the pivot bracket (7), as shown in FIGS. The tilt angle is changed in the downward tilt direction parallel to the longitudinal direction of the steel purlin (3) on the pivot shaft (8) provided perpendicular to the longitudinal direction of the steel purlin (3) in 6) It consists of a plate-like bracing base member (7a) that is pivotably connected, and a strip-like bracing main body (7b) whose upper end is connected to the plate-like bracing base member (7a).

  Claim 7 is a structure for preventing collapse of an installation in a steel building according to claim 3, claim 4, or claim 6, as well shown in FIGS. 6 to 13, particularly FIG. 7 or FIG. 9. Plate face so that the lower flange screw fixing piece (5a) is integrally projected downward and the pivot shaft (8) can be attached perpendicular to the longitudinal direction of the steel purlin (3) The plate-like pivot bracket (6b), which is integrally projected so that (P) is parallel to the longitudinal direction of the steel purlin (3), is adapted to the gradient angle of the steel roof frame (2). Regardless of the state of inclination of the steel purlin (3) fixed in the inclined state, the steel purlin (3) is always protruded directly downward.

  An eighth aspect of the present invention is the apparatus for preventing collapse of an installation in a steel building according to any one of the first to seventh aspects, wherein the pivot shaft (8) includes a bolt shaft (8a) and a nut (8b) screwed into the bolt shaft (8a). ).

  According to claim 1, as shown in FIG. 1, the bone is perpendicular to the steel roof frame (2) disposed at various inclination angles according to the gradient of the roof material (1). Since the steel purlin (3) made of grooved steel with a lip, which is a horizontal material, is fixed to the frame (2), as shown in Fig. 2, it is adjusted according to the slope angle of the steel roof frame (2). The steel roof purlin (3), which is a horizontal member that is integrally mounted on the upper surface of the steel frame (2), and the mounting bracket (5) that is fixed to the steel roof frame (2) The pivoting bracket (6) that is inclined in accordance with the inclination angle of the mounting bracket (5) and protrudes downward integrally with the mounting bracket (5) also changes from a downward state directly below to a downward state in an oblique inclination direction. Therefore, the collapse prevention brace (7) pivotally attached to this also tries to displace its downward inclination mounting position, but the collapse prevention brace (7) changes the downward inclination angle to the pivot bracket (6). Since it is pivotally mounted, the pivot mounting bracket (6) integrally projecting from the mounting bracket (5) is displaced from a downward state directly below it to a downward state in an oblique inclination direction as shown in FIG. However, the pair of anti-collapsible braces (7), (7) pivotally attached to the pivot bracket (6) has a margin that allows the inclination angle to be changed at the pivot joint with the pivot bracket (6). Since it is pivotally held, it can be maintained in a substantially square shape with the same inclination angle from the horizontal plane around the pivoted portion. For this reason, the installation object (4) (4a) to which the lower ends of the pair of collapse prevention braces (7) are connected can be stably held at the installation position, and the role of preventing collapse can be surely performed. it can.

  According to claim 2, as shown in FIGS. 2 to 5, the mounting bracket (5) is for screwing the lower flange portion screwed to the lower flange portion (3c) of the steel purlin (3). From the one end of the piece (5a) and the lower flange screw fixing piece (5a), it rises along the lower lip (3f) of the steel purlin (3) and engages with the upper end of the lower lip (3f). The lower lip engaging upper piece (5b) and the lower flange screw fixing piece (5a) rise from the other flange end along the vertical flange (3a) of the steel purlin (3). Since the vertical flange part screwing rising piece (5c) is screwed to the flange part (3a), the mounting bracket (5) and the pivotal mounting bracket (6) projecting downward downward are steel frames. It will be firmly attached to the purlin (3). Further, since the pivot bracket (6) is integrally protruded downwardly on the lower flange screw fixing piece (5a) of the mounting bracket (5), it is easy to manufacture the bracket (6).

 The pivot bracket (6) has a plate surface (P) that is long in the longitudinal direction of the steel purlin (3) so that the pivot axis (8) can be mounted parallel to the longitudinal direction of the steel purlin (3). Since it is composed of a plate-like pivot bracket (6a) integrally projecting so as to be orthogonal to the direction, a pair of collapsible braces for collapsing via the pivot shaft (8) to the plate pivot bracket (6a) ( 7) and (7) can be pivotally attached to the steel purlin (3) perpendicularly to the longitudinal direction so that the inclination angle can be changed in the downward inclination direction, according to the slope of the roofing material (1). A pair of anti-collapsible bracings (7), perpendicular to a steel purlin (3) attached to the steel roof frame (2) arranged at various gradient angles at appropriate intervals in the longitudinal direction, (7) can be attached accurately and easily.

  According to claim 3, as shown in FIGS. 6 to 9, the mounting bracket (5) is used for screwing the lower flange portion screwed to the lower flange portion (3c) of the steel purlin (3). From the one end of the piece (5a) and the lower flange screw fixing piece (5a), it rises along the lower lip (3f) of the steel purlin (3) and engages with the upper end of the lower lip (3f). The lower lip engaging upper piece (5b) and the lower flange screw fixing piece (5a) rise from the other flange end along the vertical flange (3a) of the steel purlin (3). Since the vertical flange part screwing rising piece (5c) is screwed to the flange part (3a), the mounting bracket (5) and the pivotal mounting bracket (6) projecting downward downward are steel frames. It will be firmly attached to the purlin (3). Further, since the pivot bracket (6) is integrally protruded downward on the lower flange screw fixing piece (5a) of the mounting bracket (5), the bracket (6) can be easily manufactured.

  The pivot bracket (6) is integrally projected downward on the lower flange part screwing piece (5a), and is pivoted perpendicular to the longitudinal direction of the steel purlin (3). Since the plate surface (P) is composed of a plate-like pivot mounting bracket (6b) that is integrally projected so that the plate surface (P) is parallel to the longitudinal direction of the steel purlin (3), the plate shape A pair of collapsible bracings (7), (7) are attached to the pivot bracket (6b) via the pivot axis (8) in the downward inclination direction parallel to the longitudinal direction of the steel purlin (3). A pair of collapsible braces (7), (7) can be attached accurately and easily in parallel with the steel purlin (3) which is attached at appropriate intervals in the longitudinal direction. be able to.

  According to claim 4, as shown in FIGS. 10 to 13, the mounting bracket (5) is screwed to the lower flange portion screwed to the lower flange portion (3 c) of the steel purlin (3). Stands along the lower lip (3f) of the steel purlin (3) from one end of the piece (5a) and the lower flange screw fixing piece (5a), and reaches the upper end of the lower lip (3f) Since the lower lip engaging part (5b) is engaged, the mounting bracket (5) and the pivotal mounting bracket (6) integrally projecting downward are firmly attached to the steel purlin (3). Not only will it be attached, but the mounting bracket (5) will be secured only by screwing the steel flange (3) to the lower flange (3c) and engaging the lower lip (3f). The fixing operation can be performed easily and quickly. Further, since the pivot bracket (6) is integrally protruded downward on the lower flange screw fixing piece (5a) of the mounting bracket (5), the bracket (6) can be easily manufactured.

  The pivot bracket (6) is integrally projected downward on the lower flange part screwing piece (5a), and is pivoted perpendicular to the longitudinal direction of the steel purlin (3). Since the plate surface (P) is composed of a plate-like pivot mounting bracket (6b) that is integrally projected so that the plate surface (P) is parallel to the longitudinal direction of the steel purlin (3), the plate shape A pair of collapsible bracings (7), (7) are attached to the pivot bracket (6b) via the pivot axis (8) in the downward inclination direction parallel to the longitudinal direction of the steel purlin (3). It is possible to attach the brace (7), (7) for preventing collapse in an accurate and easy manner perpendicular to the steel purlin (3) attached at appropriate intervals in the longitudinal direction. it can.

  According to claim 5, as shown in FIG. 1 and FIGS. 2 to 5, the brace for preventing collapse (7) is provided on the pivot bracket (6) in parallel with the longitudinal direction of the steel purlin (3). The bracing base member (7a) pivotally attached to the pivoted shaft (8) so as to be able to change the inclination angle in the downward inclination direction perpendicular to the longitudinal direction of the steel purlin (3), and the connecting member (9 ) And the bracelet brace body (7b) connected to the brace base member (7a) through the structure, the structure is simple and can be easily manufactured, and the length of the brace (7) for preventing collapse Can be adjusted by the connecting member (9), so that the lower end of the pair of collapsible bracings (7) can be securely attached according to the connecting position of the installation objects (4), (4a). .

  According to claim 6, as shown in FIGS. 6 to 13, the brace (7) for preventing collapse is provided on the pivot bracket (6) so as to be orthogonal to the longitudinal direction of the steel purlin (3). A plate-like bracing base member (7a), which is pivotally connected to the pivoted shaft (8) so as to be able to change its inclination angle in a downward inclination direction parallel to the longitudinal direction of the steel purlin (3), Since the upper end portion is composed of the strip-like bracing main body (7b) connected to the plate-like bracing base member (7a), the structure is simple and can be easily manufactured.

  According to the seventh aspect, as shown in FIGS. 6 to 13, the lower flange part screwing piece (5a) is integrally projected downward and orthogonal to the longitudinal direction of the steel purlin (3). The plate-shaped pivot bracket (6b) is integrally projected so that the plate surface (P) is parallel to the longitudinal direction of the steel purlin (3) so that the pivot shaft (8) can be attached. , Regardless of the inclination angle of the mounting bracket (5) that is integrally attached with the same inclination angle as the steel purlin (3), as shown in FIG. 7 or FIG. It is possible to always project it directly underneath by bending the mounting bracket (5) to an obtuse angle with the inclination angle of the mounting bracket (5) .In this state, the pivot bracket (6b) is connected via the pivot shaft (8). The pair of collapsible bracings (7), (7) pivoted are inclined downward from the horizontal plane at the same inclination angle. Collapse prevention brace pair (7), (7) installed object which is connected to the lower portion (4) held securely and stably good, it is possible to perform sufficiently the role of collapse prevention.

  According to the eighth aspect, the pivot shaft (8) is composed of a bolt shaft (8a) and a nut (8b) to be screwed into the pivot shaft (8), as particularly clearly shown in FIG. Therefore, the pivot bracket (6a) is integrally protruded downward in the inclined state in proportion to the inclination angle of the steel purlin (3) disposed at a predetermined inclination angle. However, the pair of braces (7) and (7) for preventing collapse are good to be connected to the installation object (4) at the lower end of the pivot bracket (6a) via the pivot shaft (8). The pivoting bracket (6a) and a pair of collapsible braces (7), (7) are pivotally mounted at the position of the favorable downward inclination angle. By tightening the nut (9b) to the bolt shaft (8a), which is the pivot shaft (8), the pair of collapse prevention braces (7) and (7) can be maintained at a favorable downward inclination angle. From this aspect too The installation object (4) connected to the lower ends of the pair of collapse prevention braces (7) and (7) can be securely and stably held, and can sufficiently fulfill the role of preventing collapse.

It is use condition explanatory drawing of the collapse prevention apparatus of the installation thing in the steel-frame building which concerns on this invention. It is a principal part front view of 1st Embodiment which concerns on this invention. It is the sectional view on the AA line in FIG. It is the same perspective view. It is the same exploded perspective view. It is a principal part side view of 2nd Embodiment which concerns on this invention. It is the BB sectional view taken on the line in FIG. It is the same perspective view. It is the same exploded perspective view. It is a principal part side view of 3rd Embodiment which concerns on this invention. It is CC sectional view taken on the line in FIG. It is the same perspective view. It is the same exploded perspective view. It is a use condition explanatory drawing of the conventional apparatus.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a use state of an apparatus for preventing collapse of an installation in a steel building according to the present invention.

  Conventionally, as a sloped roof, a roof material (1) made of a roof base, a roof board or the like is formed at various slope angles. A steel roof frame (2) is arranged as a girder from the high part to the low part, inclining according to these various inclination angles, and orthogonal to the upper surface of this steel roof frame (2). The steel purlin (3), which is a horizontal member, is fixed by an appropriate fixing tool (11) (see FIG. 14) as in the prior art. In the present invention, the steel purlin (3) is utilized, and a collapse prevention device is provided on the steel purlin (3).

  The steel-made purlin (3) is well known in the art, and the vertical flange (3a), the upper flange (3b) above it, the lower flange (3c) below it, and the upper and lower flanges (3b), (3c) ) And a lip-shaped channel steel that has upper and lower lip portions (3e) and (3f) that protrude from each other across the opening (3d) at the tip of It is made up of.

  In the embodiment shown in FIG. 1, the steel purlin (3) made of grooved steel with a lip is fixed so that the opening (3d) faces the inclined upward side of the steel roof frame (2). . And, to the steel purlin (3), the mounting bracket (5) of the collapse prevention device according to the present invention is attached, and a pair of collapsible bracings to the steel purlin (3) via the mounting bracket (5). (7), (7) is attached in a substantially C-shape, and the installation object made of a normal ceiling material installed in the steel building at the lower end of the pair of collapse prevention braces (7), (7) (4) is connected. Installations are not limited to ceiling materials. As shown by the two-dot chain lines in Fig. 1, installations in stores such as product shelves in stores made of steel frames and machinery in the factory are installed in the factory. Objects (4a) such as objects are also targeted. In short, the target is to prevent the installations (4) and (4a) attached to the steel building from receiving external pressure such as an earthquake from collapsing from the installation location. The means for connecting the lower end of the brace for collapsing prevention (7) to the installation object (4), (4a) is not particularly limited. For example, as shown in the enlarged view of FIG. A plurality of bolt holes (C) are opened at the lower end of the brace (7), and the bolts (B) are screwed into the installation objects (4) and (4a) from these bolt holes (C) to be connected and fixed. You may do it.

  1 and 2 to 5 show a first embodiment of the present invention. The mounting bracket (5) has a screw hole (C1) (in the lower flange part (3c) of the steel purlin (3). The lower flange screwing piece (5a) to which the screw (B1) is screwed and screwed from Fig. 5), and the steel flange purlin (3) from one end of the lower flange screwing piece (5a) Lower lip engagement rising part piece that rises along the lower lip part (3f) and engages the downward U-shaped engagement piece (10) provided at the upper end part with the upper end part of the lower lip part (3f) (5b) and the other end of the lower flange screw fixing piece (5a) rises along the vertical flange (3a) of the steel purlin (3) to the vertical flange (3a) with a screw hole (C2 ) (Fig. 5) and a vertical flange part screwing rising part piece (5c) to which a screw (B2) is screwed to be screwed. As a reinforcement, a screw hole (C3) may be provided in the rising portion piece (5b) for engaging the lower lip portion so that the screw (B3) is screwed into the lower lip portion (3f).

 The pivot mounting bracket (6) is integrally protruded by bending downward one end of the lower flange screw fixing piece (5a), and the pivot bracket (6) has a steel purlin (3 The plate surface (P) is bent so as to be orthogonal to the longitudinal direction of the steel purlin (3) so that the pivot shaft (8) can be attached parallel to the longitudinal direction of It consists of a plate-like pivot bracket (6a), and a pair of collapsible bracings (7), (7) for the pair of collapse prevention braces (7) are connected to the plate-like pivot bracket (6a) via a pivot shaft (8). It is perpendicular to the longitudinal direction of (3) and is pivotally attached in a downwardly inclined direction in a substantially C shape, and a pair of collapse prevention braces (7), (7) are attached to the roof material (1). A steel roof frame (2) arranged at various gradient angles according to the gradient, and a steel purlin (3) that is attached at appropriate intervals in the longitudinal direction. , (7) accurately and easily attached It is possible.

 A pair of collapsible bracings (7), (7) are pivoted to the plate-like pivot bracket (6a) via a pivot shaft (8) perpendicular to the longitudinal direction of the steel purlin (3). When wearing, the pair of collapsible bracings (7), (7) can be pivoted so that the tilt angle can be changed in the downward tilt direction by the pivot shaft (8). In accordance with the connection positions of (4) and (4a), the pair of collapse prevention braces (7) can be tilted to a good position.

 The pivot shaft (8) is composed of a bolt shaft (8a) and a nut (8b) screwed into the bolt shaft (8a). (7), (7) tilted to a good position, pivot bracket (6) and a pair of collapsible braces (7), (7) are bolt shaft (8a) and nut screwed into this ( 8b), the lower ends of the pair of anti-collapsible bracings (7), (7) are connected to the installation objects (4), (4a) in a state maintained in a good connection position. Therefore, the installation objects (4) and (4a) can be connected stably and securely.

 As described above, the mounting bracket (5) and the pivot mounting bracket (6) integrally projecting downward from the mounting bracket (5) are firmly attached to the steel purlin (3). The bracket (6) is easy to manufacture because it is integrally projected downward on the lower flange screw fixing piece (5a) of the mounting bracket (5).

 As shown in FIG. 2 or FIG. 3, the bracing for preventing collapse (7) is connected to the bracing base member (7a) via the bracing base member (7a) and the connecting member (9) made of a battledore bolt. It consists of a strip-like bracing body (7b), and the bracing base member (7a) is a plate-like part with its upper end sandwiched between the bolt shaft (8a) and the nut (8b) which are pivoting shafts (8) 7a1) and a bolt part (9a) of a wing plate bolt which is a connecting member (9) is composed of a female screw part (7a2) screwed into the female screw hole (C4). As shown in FIG. 5, the pivot bracket (6a) The bolt (8a) is passed through the bolt hole (C5) and the bolt holes (C6), (C6) of the pair of plate-like parts (7a1), (7a1), and the nut (8b) is screwed. The band plate-like bracing main body (7b) is composed of flat U-shaped ribs (7b1) and a flat main body portion (7b2), and the flat plate main body portion (7b2) has a wing plate of a wing plate bolt as the connecting member (9). Part (9) is screwed (B4) It is adapted to be stopped.

  In this way, the collapsible prevention brace (7) of this embodiment includes a bracing base member (7a) pivotally attached to the pivotal mounting bracket (6a) via the pivotal attachment shaft (8), and a connecting member (9). Since it consists of a strip-like brace body (7b) connected to the brace base member (7a) via a tie, the structure is simple and can be easily manufactured, and the length of the brace (7) for preventing collapse Since it can be adjusted by the connecting member (9), the lower end portions of the pair of collapsible bracings (7) can be securely attached in accordance with the connecting positions of the installation objects (4) and (4a).

  FIGS. 6 to 9 show a second embodiment of the present invention. The mounting bracket (5) has a screw hole (C1) (FIG. 9) in the lower flange portion (3c) of the steel purlin (3). ) Screw the screw (B1) into the lower flange part screwing piece (5a), and the lower flange part screwing piece (5a) from one end of the steel flange (3) lower lip The lower lip portion engaging rising portion (5b) that rises along the portion (3f) and has a downward U-shaped engaging piece (10) formed on the upper end portion engages with the upper end portion of the lower lip portion (3f). And, from the other end of the lower flange part screwing piece (5a) rises along the vertical flange part (3a) of the steel purlin (3) screw hole (C2) (Fig. 9) From the vertical flange part screwing rising part piece (5c) to which the screw (B2) is screwed and screwed. As a reinforcement, a screw hole (C3) may be provided in the rising portion piece (5b) for engaging the lower lip portion so that the screw (B3) is screwed into the lower lip portion (3f).

 The pivot bracket (6) has a vertical flange part screwing rising part (5c) to a lower flange part screwing part (5a) that serves as a punched part (19) and a lower flange part screwing part. The plate surface (P) has a steel purlin (3) so that the pivot shaft (8) can be attached perpendicularly to the longitudinal direction of the steel purlin (3). ) Of the plate-shaped pivot mounting bracket (6b) integrally projecting so as to be parallel to the longitudinal direction of the plate), and a pair of collapsible preventions via the pivot shaft (8) to the plate-shaped pivot mounting bracket (6b) The braces (7) and (7) are pivotally attached in parallel to the longitudinal direction of the steel purlin (3) so that the inclination angle can be changed in the downward inclination direction in a substantially C shape. is there. Thus, the mounting bracket (5) and the pivotal mounting bracket (6) integrally projecting downward from the mounting bracket (5) are firmly attached to the steel frame purlin (3). In addition, the pivot bracket (6) is a punched part (19) from the vertical flange part screwing rising part (5c) to the lower flange part screwing part (5a) of the mounting bracket (5) and facing downward Therefore, the bracket (6) can be easily manufactured.

  The pivot bracket (6) is integrally projected downward on the lower flange screw fixing piece (5a), and is pivoted perpendicular to the longitudinal direction of the steel purlin (3). Since the plate surface (P) is composed of a plate-like pivot mounting bracket (6b) that is integrally projected so that the plate surface (P) is parallel to the longitudinal direction of the steel purlin (3), the plate shape It is possible to change the inclination angle of the pair of bracing brace (7) to the pivot bracket (6b) via the pivot axis (8) in the downward inclination direction parallel to the longitudinal direction of the steel purlin (3) A pair of collapsible bracings (7), (7) can be accurately and easily attached to a steel purlin (3) attached at an appropriate interval in the longitudinal direction.

  The brace for preventing collapse (7) includes a bracing base member (7a) and a strip plate bracing body (7b). The bracing base member (7a) is a bolt shaft (8a) which is a pivot shaft (8). ) And a nut (8b) with its upper end sandwiched between a plate-like part (7a1) and a reinforcing rib part (7a2). As shown in FIG. 9, the bolt hole of the pivot mounting bracket (6a) The nut (8b) is screwed through the bolt (8a) across (C5) and the bolt holes (C6), (C6) of the pair of plate-like portions (7a1), (7a1), and The strip plate bracing body (7b) consists of a flat U-shaped rib (7b1) and a flat main body (7b2). The bracing base member (7a) is screwed to the flat main body (7b2) with screws (B4). It has come to be. As described above, the brace for preventing collapse (7) is composed of only two members, the bracing base member (7a) and the strip plate bracing main body (7b), so that the structure is simple and can be easily manufactured.

  Also, the lower flange part screwing piece (5a) is integrally protruded downward so that the pivot shaft (8) can be attached perpendicular to the longitudinal direction of the steel purlin (3). The plate-like pivot bracket (6b) that is integrally projected so that the plate surface (P) is parallel to the longitudinal direction of the steel purlin (3) is inclined at the same gradient angle as the steel purlin (3). As shown clearly in FIG. 7, regardless of the inclination angle of the mounting bracket (5) that is integrally attached, the base end portion is bent at an obtuse angle in accordance with the inclination angle of the mounting bracket (5). It is possible to always project integrally underneath, and the pair of collapse prevention braces (7) and (7) pivotally attached to the pivot bracket (6b) via the pivot axis (8) are the same from the horizontal plane. The installation object (4) connected to the lower ends of the pair of collapse prevention braces (7) and (7) is securely and It can be held stably and can fully play the role of preventing collapse.

  10 to 13 show a third embodiment of the present invention. The difference from the second embodiment is that in the second embodiment, the other end of the lower flange screw fixing piece (5a). The vertical flange part screwing rising part (5c) rising from the part along the vertical flange part (3a) of the steel purlin (3) is provided. In the third embodiment, as will be described later. The vertical flange part screwing rising piece is not provided. The other structure is the same as that of the second embodiment, but as a precaution, the mounting bracket (5) has a screw hole (C1) in the lower flange part (3c) of the steel purlin (3). ) (FIG. 13) Screw the screw (B1) from the lower flange part screwing piece (5a) screwed and screwed from one end of the lower flange part screwing piece (5a) (3 ) Rises along the lower lip portion (3f), and the downward U-shaped engagement piece (10) formed on the upper end portion engages with the upper end portion of the lower lip portion (3f). It consists of a piece (5b). As a reinforcement, a screw hole (C3) may be provided in the rising portion piece (5b) for engaging the lower lip portion so that the screw (B3) is screwed into the lower lip portion (3f).

 The pivot bracket (6) is integrally protruded downward from one end of the lower flange screw fixing piece (5a), and is pivoted perpendicularly to the longitudinal direction of the steel purlin (3). A plate-shaped pivot bracket (6b) integrally projecting so that the plate surface (P) is parallel to the longitudinal direction of the steel purlin (3). A pair of bracings for preventing collapse (7), (7) are placed on the pivot bracket (6b) via the pivot shaft (8), parallel to the longitudinal direction of the steel purlin (3). It consists of the structure which pivots so that the inclination-angle can be changed to an inclination direction. Thus, the mounting bracket (5) and the pivotal mounting bracket (6) integrally projecting downward from the mounting bracket (5) are firmly attached to the steel frame purlin (3). Further, since the pivot bracket (6) is integrally projected downward by bending or bending one end of the lower flange screw fixing piece (5a) of the mounting bracket (5), the bracket (6 ) Is easy to manufacture.

  The pivot bracket (6) is integrally projected downward on the lower flange screw fixing piece (5a), and is pivoted perpendicular to the longitudinal direction of the steel purlin (3). Since the plate surface (P) is composed of a plate-like pivot mounting bracket (6b) that is integrally projected so that the plate surface (P) is parallel to the longitudinal direction of the steel purlin (3), the plate shape A pair of collapsible bracings (7), (7) are attached to the pivot bracket (6b) via the pivot axis (8) in the downward inclination direction parallel to the longitudinal direction of the steel purlin (3). Can be attached to the steel purlin (3) that is attached at appropriate intervals in the longitudinal direction, and the pair of collapsible braces (7), (7) can be attached accurately and easily. .

  The brace for preventing collapse (7) includes a bracing base member (7a) and a strip plate bracing body (7b). The bracing base member (7a) is a bolt shaft (8a) which is a pivot shaft (8). ) And a nut (8b) with its upper end sandwiched between a plate-like part (7a1) and a reinforcing rib part (7a2). As shown in FIG. 13, the bolt hole of the pivot mounting bracket (6a) The nut (8b) is screwed through the bolt (8a) across (C5) and the bolt holes (C6), (C6) of the pair of plate-like portions (7a1), (7a1), and The strip plate bracing body (7b) consists of a flat U-shaped rib (7b1) and a flat main body (7b2). The bracing base member (7a) is screwed to the flat main body (7b2) with screws (B4). It has come to be. As described above, the brace for preventing collapse (7) is composed of only two members, the bracing base member (7a) and the strip plate bracing main body (7b), so that the structure is simple and can be easily manufactured.

  Also, the lower flange part screwing piece (5a) is integrally protruded downward so that the pivot shaft (8) can be attached perpendicular to the longitudinal direction of the steel purlin (3). The plate-like pivot bracket (6b) that is integrally projected so that the plate surface (P) is parallel to the longitudinal direction of the steel purlin (3) is inclined at the same gradient angle as the steel purlin (3). As shown particularly clearly in FIG. 11, the base end of the mounting bracket (5) that is integrally attached to the mounting bracket (5) is bent at an obtuse angle according to the inclination angle of the mounting bracket (5). It is possible to always project integrally underneath, and the pair of collapse prevention braces (7) and (7) pivotally attached to the pivot bracket (6b) via the pivot axis (8) are the same from the horizontal plane. The installation object (4) connected to the lower ends of the pair of collapse prevention braces (7) and (7) is securely and It can be held stably and can play a role in preventing collapse.

  As described above, in the first embodiment, as shown in FIG. 1, the pair of collapse prevention braces (7), (7) are along the longitudinal direction of the steel roof frame (2). That is, it is developed in a substantially square shape parallel to the steel roof frame (2) and its lower end is connected to the installation objects (4), (4a). The third embodiment is different from the first embodiment in that the pair of collapse prevention braces (7) and (7) are developed in a substantially C shape parallel to the longitudinal direction of the steel roof frame (2). In the direction orthogonal to this, that is, in the direction perpendicular to the longitudinal direction of the steel roof frame (2), the direction is perpendicular to the steel roof frame (2). A pair of collapse prevention braces (7), (7), which are developed in a substantially C shape, are connected to the installation objects (4), (4a). Therefore, the brace for preventing collapse (7), (7), which is a combination of the first embodiment and the second and third embodiments, is developed to connect and hold the installation objects (4), (4a). For example, it is possible to maintain stronger against external pressure without collapsing from the installation position.

  In the present invention, the steel roof frame (2) disposed at various inclination angles in accordance with the gradient of the roof material (1), the roof material (1) is horizontal as a flat roof. Needless to say, a case where the gradient angle is zero is also included.

(1) Roofing material
(2) Steel roof frame
(3) Steel purlin
(4) Installed items
(4a) Installation
(5) Mounting bracket
(6) Pivoting bracket
(7) Bracing prevention brace
(8) Pivot axis

Claims (8)

  The steel roof purlin (3), which is a horizontal material, is fixed perpendicularly to the steel roof frame (2), which is arranged at various gradient angles according to the gradient of the roof material (1), and this steel frame A collapse prevention device for preventing the installation members (4) and (4a) installed in the steel building from using the main purlin (3) from collapsing from the installation site under external pressure. The steel purlin (3) has a vertical flange (3a), an upper flange (3b) above it, a lower flange (3c) below it, and top ends of the upper and lower flanges (3b), (3c). It consists of a grooved steel with lips composed of upper and lower lip parts (3e) and (3f) projecting opposite to each other across the opening (3d), and a steel purlin (3 ) Is fixed to the lower flange portion (3c) and fixed to the mounting bracket (5), which is locked to the lower lip portion (3f). 6) a pair of collapse prevention The brace for bracing (7), (7) is pivoted downward in a generally C shape so that the tilt angle can be changed, and the lower ends of the pair of collapsible bracings (7), (7) are An apparatus for preventing collapse of an installation in a steel building connected to the installation (4) (4a).  The mounting bracket (5) includes a lower flange part screwing piece (5a) screwed to the lower flange part (3c) of the steel frame purlin (3), and a lower flange part screwing piece (5a ) Rises from one end of the steel purlin (3) along the lower lip (3f) of the steel frame purlin (3) and engages the upper end of the lower lip (3f) with the lower lip engaging portion (5b) and the lower flange Standing up from the other end of the screw fixing part (5a) along the vertical flange part (3a) of the steel purlin (3) The vertical flange part screwing up that is screwed to the vertical flange part (3a) The pivot bracket (6) is integrally protruded downward from the lower flange screw fixing piece (5a) and is parallel to the longitudinal direction of the steel purlin (3). It consists of a plate-shaped pivot bracket (6a) integrally projecting so that the plate surface (P) is orthogonal to the longitudinal direction of the steel purlin (3) so that the pivot shaft (8) can be attached. , A pair of anti-collapse braces (7), (7) are tilted downward perpendicular to the longitudinal direction of the steel purlin (3) via the pivot shaft (8) to the plate-shaped pivot bracket (6a) The apparatus for preventing collapse of an installed object in a steel building according to claim 1, wherein the tilt angle is pivotally attached to the direction so as to be changeable.   The mounting bracket (5) includes a lower flange part screwing piece (5a) screwed to the lower flange part (3c) of the steel frame purlin (3), and a lower flange part screwing piece (5a ) Rises from one end of the steel purlin (3) along the lower lip (3f) of the steel frame purlin (3) and engages the upper end of the lower lip (3f) with the lower lip engaging portion (5b) and the lower flange Standing up from the other end of the screw fixing part (5a) along the vertical flange part (3a) of the steel purlin (3) The vertical flange part screwing up that is screwed to the vertical flange part (3a) It consists of a piece (5c), and the pivot bracket (6) is integrally projected downward on the lower flange screw fixing piece (5a) and orthogonal to the longitudinal direction of the steel purlin (3) The plate-like pivot bracket (6b) is integrally projected so that the plate surface (P) is parallel to the longitudinal direction of the steel purlin (3) so that the pivot shaft (8) can be attached. And a pair of collapsible bracings (7), (7) parallel to the longitudinal direction of the steel purlin (3) via the pivot shaft (8) to the plate-shaped pivot bracket (6b). The apparatus for preventing collapse of an installation in a steel-frame building according to claim 1, wherein the tilt angle is pivotably mounted in a downward tilt direction.   The mounting bracket (5) consists of a lower flange part screwing piece (5a) screwed to the lower flange part (3c) of the steel purlin (3) and a lower flange part screwing part (5a). The lower lip engaging upper part (5b) that engages with the upper end of the lower lip part (3f) rising from the one end of the steel purlin (3) along the lower lip part (3f). The pivot bracket (6) is integrally projected downward on the lower flange screw fixing piece (5a) and attached to the pivot shaft (8) perpendicular to the longitudinal direction of the steel purlin (3). A plate-like pivot bracket (6b) integrally projecting so that the plate surface (P) is parallel to the longitudinal direction of the steel purlin (3) The tilt angle of the pair of anti-collapse braces (7), (7) can be changed in the downward tilt direction parallel to the longitudinal direction of the steel purlin (3) via the pivot shaft (8) in (6b) Pivoted to The apparatus for preventing collapse of an installation in a steel building according to claim 1.   The brace for collapsing prevention (7) is provided in the longitudinal direction of the steel purlin (3) on the pivot shaft (8) provided parallel to the longitudinal direction of the steel purlin (3) on the pivot bracket (6). A brace base member (7a) that is pivotally attached perpendicularly so that the inclination angle can be changed in a downward inclination direction, and a strip-like brace body connected to the brace base member (7a) via a connecting member (9) ( The apparatus for preventing collapse of an installation in a steel building according to claim 1 or 2, comprising 7b).   The brace for preventing collapse (7) includes a steel purlin (3) mounted on the pivot shaft (8) provided perpendicular to the longitudinal direction of the steel purlin (3) on the pivot bracket (6). A plate-like bracing base member (7a) that is pivotally connected in parallel to the longitudinal direction so that the inclination angle can be changed in a downward inclination direction, and a strip that has an upper end connected to the plate-like bracing base member (7a) The apparatus for preventing collapse of an installation in a steel structure building according to claim 3 or 4, comprising a bracing main body (7b).    Plate face so that the lower flange screw fixing piece (5a) is integrally projected downward and the pivot shaft (8) can be attached perpendicular to the longitudinal direction of the steel purlin (3) The plate-like pivot bracket (6b), which is integrally projected so that (P) is parallel to the longitudinal direction of the steel purlin (3), is adapted to the gradient angle of the steel roof frame (2). 7. The steel-made purlin as claimed in claim 3, wherein the steel-made purlin (3), which is fixed in an inclined state, is always integrally protruded downward regardless of the inclined state. Device for preventing the collapse of installed objects in buildings. The apparatus for preventing collapse of an installation in a steel building according to any one of claims 2 to 7, wherein the pivot shaft (8) comprises a bolt shaft (8a) and a nut (8b) screwed into the bolt shaft.

Images