JP6242324B2 - Fireproof panel connection structure - Google Patents

Description

  The present invention relates to a fireproof panel connection structure that is applied to walls and roofs that require fireproof performance, particularly outer walls, in steel-based buildings such as logistics facilities.

For exterior walls and roofs of buildings that require fire resistance, it is necessary to adopt materials and construction methods that have received fire resistance certification.
In the prior art, when constructing a fireproof panel such as a metal sandwich panel having a structure in which a non-combustible heat insulating material such as rock wool is sandwiched between steel plates, as shown in FIG. The base material 43, 43A called an edge is fixed, and the fireproof panel 42 is fixed to the base material 43, 43A with a screw or the like.

  Screw fixing work to the base material 43, 43A of the fireproof panel 42 is performed from a scaffold (not shown) provided on the opposite side of the base material 43, 43A. For example, when the fireproof panel 42 constitutes an outer wall surface Done from an external scaffold. At this time, the fireproof panel 42 is lifted by one winch or the like and attached to the base materials 43 and 43A.

Japanese Patent No. 3550304 JP 2012-57370 A

  In recent years, labor saving and shortening of the construction period have been demanded. However, in the work of attaching the fireproof panels 42 one by one from the scaffold, labor saving and shortening of the construction period cannot be expected. Therefore, as shown in FIG. 13, a plurality of refractory panels 42 are pre-assembled on the base material, and the plurality of integrated refractory panels 42 are lifted at once and attached to the outer wall surface, thereby saving labor. It is expected to shorten the construction period.

  However, many fireproof panels 42 that have obtained fireproof certification have a structure in which the joints in the long side direction of the panel are engaged by fitting. For example, when taking the long side direction in the horizontal direction, 14, the upper and lower refractory panels 42 are connected to each other so as to satisfy water tightness and fire resistance, and the vicinity of the upper end of the lower refractory panel 42 is fixed to the base material 43 with screws 46. The structure is hidden inside. That is, the screw 46 cannot be fixed in a normal state from the fitted state.

  Further, in the joint portion 55 (FIG. 12) in the short side direction of the fireproof panel 42, in order to ensure the fireproof performance, in many cases, a base material 43A necessary for the fireproof performance having a closed internal space such as a square pipe. On the other hand, the fireproof panels 42 and 42 on both sides are fixed with screws as shown in FIG. In this case, when the ground is built for the base integrated construction, only one base integrated unit on one side can be screw-fixed to the base material 43A required for fire resistance.

  The object of the present invention is to solve the above-mentioned problems and secure a fireproof performance required for joints, while being able to construct a plurality of fireproof panels as a base-integrated fireproof panel unit without scaffolding, labor saving, short construction period It is to provide a connection structure of a fireproof panel that can be realized.

The basic structure of the fireproof panel connection structure of the present invention is that a plurality of fireproof panels arranged in a row are attached to a plurality of parallel bar-shaped base materials extending in the direction of the fireproof panel to form a fireproof panel unit. A connection structure for a fireproof panel in which a plurality of panel units are arranged in a direction perpendicular to the direction in which the fireproof panels are arranged and installed in a building frame, and a base material on an adjacent side of one adjacent fireproof panel unit is used for both fireproof panel units. Place the joints that occur between the fireproof panels indoors at a position to be closed indoors, and connect the base material on the other side of the other fireproof panel unit to the side of the base material at the position to close the joints indoors, this connection Any one or both of the two base materials are joined to a fastener installed in a building frame.

According to this configuration, the joint material generated between the fireproof panels is closed on the indoor side by the base material of one fireproof panel unit, so that the fireproof performance required for the joint can be ensured. Along with the base material that closes the joint, another base material is additionally arranged to connect the two base materials to each other, and either or both of the two connected base materials are joined to the fasteners of the building frame. To do. For this reason, the other fireproof panel unit can also be applied to the groundwork without causing fire resistance and fixing problems. By connecting the base material that secures the fire resistance disposed at the position where the joints are closed and the additionally disposed base material by bolts or welding, sufficient performance in terms of fire resistance and strength can be obtained.
Since a plurality of fire-resistant panels can be installed together as a ground-integrated fire-resistant panel unit, labor saving and a shorter construction period are possible compared to a construction method in which fire-resistant panels are lifted one by one. In addition, since the work of attaching the base of the fireproof panel unit to the building frame can be performed from the slabs or beams in the building frame, there is no need for the scaffolding that was previously required on the outer periphery of the building frame. In addition to being unnecessary, the impact of construction delays due to the scaffolding is reduced.

In the basic configuration of the present invention, the fireproof panel is an outer wall panel, and constitutes an outer wall panel unit that is the fireproof panel unit arranged side by side in the vertical direction, and the joints are vertically generated between the outer wall panels of the left and right outer wall panel units. It is a joint . This vertical joint is in the middle of the width of the base material of the square pipe, and the vertical joint is filled with a seal serving as a rain barrier.
Since the present invention is applied to the outer wall, it is more effective to use the fireproof panel unit integrated with the ground than when applied to an indoor wall or roof. It can be attached to the building frame, leading to the need for an external scaffold, and the effects of labor saving and shortening the construction period become more effective.

In the fireproof panel connection structure of the present invention, the base material of the adjacent side of one of the adjacent fireproof panel units is a square pipe, and a half portion protrudes from the side edge serving as the adjacent side of the fireproof panel, The fireproof panel unit is disposed at a position where the joint between the fireproof panels of the two fireproof panel units is closed on the indoor side, the base material on the adjacent side of the other fireproof panel unit is a lip groove steel, and the web is the fireproof panel. It is arranged so as to face the outside of the fireproof panel and from the side edge serving as the adjacent side of the fireproof panel, and is connected to the side surface of the base material at the position where the joint is closed on the indoor side. Of the two connected base materials, only the base material of the lip channel steel is joined to a fastener installed in a building frame, and this fastener is composed of the base material consisting of the square pipe and the lip channel steel. Among the base materials to be provided, the base material is biased toward the base material side made of the lip channel steel.
By making the base material at the position where the joint is closed into a square pipe which is a member having a closed cross-sectional shape, the fire resistance performance by closing the joint with the base material is improved. The base material to be connected to the base material consisting of this square pipe is made of lip groove steel, so that the work of connecting to the base material consisting of the square pipe becomes easier than the connection between the square pipes. Leads to weight saving and resource saving.

In this way, when the base material connected to the base material made of a square pipe is a lip groove steel, an opening stopper plate may be provided to join the opposing lips of the base material made of the lip groove steel.
Even if lip groove steel is used for the base material, it is difficult for the cross-sectional shape to be deformed during heating by providing an anti-opening plate, and the deformation creates a gap between the base material and the fireproof panel near the joint, resulting in fireproof performance. Decrease is prevented.

  In the present invention, the two base materials may be connected to each other by bolts or welding, or both bolts and welding. With bolts or welding, it can be firmly joined by simple operations.

  In the present invention, the two base materials may be connected to each other with a through-bolt that penetrates the base material at a position that closes the joint. When a through bolt is used, it is not necessary to provide a nut or the like inside the base material that closes the joint, and even if the base material that closes the joint is a square pipe, it can be connected with a simple configuration.

  In the present invention, the two base materials may be connected to each other with a one-side bolt. A one-side bolt is a general term for a shaft-like fastening tool that can be tightened and tightened by working from one end and deforming the other end to the outer peripheral side by expanding or bending, and is also called a one-side tightening rivet. . When such a one-side bolt is used, it is only necessary to provide an insertion hole for the one-side bolt in the base material, and the base material is a member that is difficult to perform back nut welding, such as a closed cross-sectional shape. However, it can be easily connected. Further, since back nut welding or the like is not required, the configuration and work for connection are simplified.

The fireproof panel connection structure of the present invention is a fireproof panel unit in which a plurality of fireproof panels arranged in a row are attached to a plurality of parallel bar-shaped base materials extending in the direction of the fireproof panel. A plurality of fireproof panel connection structures that are installed in a building frame in a direction orthogonal to the direction in which the fireproof panels are arranged, wherein a base material on an adjacent side of one adjacent fireproof panel unit is a square pipe, and the fireproof panel A half of the panel extends from the side edge that is the adjacent side of the panel, and is placed at a position that covers the joint between the fireproof panels of both fireproof panel units on the indoor side, and the base of the adjacent side of the other fireproof panel unit The material is a lip channel steel, and the front is disposed so that the web faces the outside of the fireproof panel and from the side edge that becomes the adjacent side of the fireproof panel. Is connected to joint on the side surface of the base material of the position for closing the indoor side, of the concatenated two base material, only the base material of the lip groove-shaped steel is joined to the fastener installed in building structures, Since this fastener is provided on the base material side made of the lip groove shape steel out of the base material made of the square pipe and the base material made of the lip groove shape steel , the fire resistance performance required for the joint is secured. On the other hand, a plurality of fireproof panels can be constructed without a scaffold as an integrated fireproof panel unit, saving labor and shortening the construction period.
Further, since the base material at the position where the joint is closed is a square pipe which is a member having a closed cross-sectional shape, the fire resistance performance by closing the joint with the base material is improved. Since the base material connected to the base material consisting of this square pipe is made of lip groove steel, the connection work to the base material consisting of the square pipe is easier than connecting the square pipes together, and the base material is lightweight. Lead to energy saving and resource saving.
In particular, since it is applied to an outer wall, an effect of construction collectively effects and plurality of refractory panels that can be applied by non scaffold as a refractory panel unit of an underlying integrated becomes more remarkable.

It is a schematic front view which shows the outer wall which applied the connection structure of the fireproof panel which concerns on 1st Embodiment of this invention in a partial decomposition state. It is a top view of the fireproof panel which is the outer wall panel. (A) is a longitudinal cross-sectional view which shows the attachment part to the building frame of a fireproof panel unit, (B) is the partial horizontal sectional view. It is an expanded horizontal sectional view which shows the connection structure of the fireproof panel. It is a perspective view of the fireproof panel unit. It is a middle omission vertical sectional view of the fireproof panel. It is a vertical sectional view of the boundary portion between the fireproof panels adjacent in the vertical direction. It is a fragmentary perspective view which shows the modification of the relationship between the base material of the fireproof panel unit, and a slab. It is an expanded horizontal sectional view which shows the connection structure of the fireproof panel which concerns on other embodiment. It is a front view which shows the state which hold | maintained the base material to the groundwork frame which builds the fireproof panel unit. It is a side view which shows the state which assembled | attached the fireproof panel unit to the same ground assembly stand. It is the perspective view and partial horizontal sectional view of a prior art example. It is a perspective view of the fireproof panel unit which concerns on a proposal example. It is a longitudinal cross-sectional view which shows the junction part of the upper and lower fireproof panels in the fireproof panel unit.

  A first embodiment of the present invention will be described with reference to FIGS. This embodiment is an example applied to an outer wall. Examples of the building to which the fireproof panel connection structure is applied include a steel building such as a warehouse or a convenience store serving as a distribution facility, a reinforced concrete building, or a building using a combination of reinforced concrete and steel.

  In FIG. 1, this outer wall is formed by integrating a plurality of fireproof panels 22, which are outer wall panels, with a base material 23 called a trunk edge by a ground assembly to form a fireproof panel unit 21. It is installed. Specifically, a plurality of horizontally long fireproof panels 22 arranged in the vertical direction are attached to a plurality of base materials 23 extending in the vertical direction at a plurality of locations in the horizontal width direction of the fireproof panels 22 (see FIG. 5). The fireproof panel unit 21 is attached to the building frame 26 with the base material 23 as shown in FIG. In the case of an outer wall, the fireproof panel unit 21 is an outer wall panel unit. A plurality of fireproof panel units 21 are installed side by side in the vertical and horizontal directions. As shown in FIGS. 1 and 3, the building frame 26 includes a pillar 34, beams 41 and 41 </ b> A (FIG. 3), a slab 31, and the like.

  The fire-resistant panel 22 may be a panel having fire resistance and heat insulation properties. To give a specific example, as shown in FIG. 6, the non-combustible heat insulating material 27 is sandwiched between steel plates 28 and 29 on the outdoor side and the indoor side. Metal sandwich panel. The incombustible heat insulating material 27 is an amorphous material such as rock wool, but may be a calcium silicate plate or a gypsum board.

  FIG. 7 is a cross-sectional view showing joint portions of the refractory panels 22 and 22 adjacent to each other in the vertical direction. The upper and lower fire-resistant panels 22 and 22 have protrusions and concave grooves that fit into each other, and the meandering mating surfaces prevent rainwater and wind from entering, improving fire resistance and intruding. The joint shape makes it easy for rainwater to flow down. Using this fitting shape, the refractory panel 22 is fixed to the base bar 23 with a shaft-shaped fixing tool 30 such as a tapping screw with a drill at the upper end of the lower refractory panel at the upper end 22a. The 30 heads are concealed behind the protrusion 22b on the lower end outdoor surface of the upper fireproof panel 22.

  In FIG. 2, among the plurality of base materials 23, each base material 23 except for one side edge of the fireproof panel 22 is made of lightweight shaped steel lip groove steel. The base material 23A on one side edge is a square pipe, and is provided so as to protrude from the side edge of the fireproof panel 22, as will be described later with reference to FIG. The dimension of the base material 23A made of a square pipe is, for example, 100 × 100 mm, and the dimension of the base material 23 made of a lip groove steel is, for example, 100 × 50 mm. Each of the base materials 23 and 23A may be a member having another shape.

  As shown in FIG. 3, in this example, the fireproof panel unit 21 has the base material 23 positioned on the outdoor side of the slab 31 of the building housing 26. The fireproof panel unit 21 is attached to the building housing 26 at the base material 23 portion. As a structure for attaching the base material 23 to the building housing 26, the fastener 14 is attached to the end of the slab 31 of the building housing 26 and the windproof beam 41 </ b> A, and the base material 23 of the fireproof panel unit 21 is bolted or welded to the fastener 14. The structure is fixed. Therefore, the fireproof panel unit 21 can be attached to the building frame 26 from the indoor side.

  The slab 31 is configured such that a deck plate is placed on the beam 41 of the building frame 26 and concrete is placed thereon, and a small face on the outer wall side is configured by a section steel 31a such as an inward channel steel. Yes. The fastener 14 of the slab 31 is fixed to the upper surface of the shape steel 31a by welding or the like. The fastener 14 is made of a section of L-shaped steel or the like, and is partially provided at a location corresponding to each base material 23.

  The height of the refractory panel unit 21 is lower than the height between the upper and lower slabs 31, 31 in the example of the figure, and the opposite ends of the base material 23 are jointed to each other in the refractory panel units 21, 21 arranged vertically. The plates 15 are connected.

As shown in FIG. 3, a gap along the edge of the slab 31 is provided between the slab 31 and the fireproof panel 22 by positioning the base material 23 of the fireproof panel unit 21 on the outdoor side of the slab 31. d occurs, but this gap d is closed by a filling portion 45 of a non-combustible heat insulating material such as mortar or rock wool.
Moreover, as shown in FIG. 8, the notch part 31b may be provided in the slab 31, and the base material 23 may be arrange | positioned in this notch part 31b. Thereby, the clearance gap between the fireproof panel 22 and the slab 31 can be made small.

  The structure of the connection part of the left and right fireproof panel units 21 and 21 will be described with FIG. A vertical joint 35 is formed between the fireproof panels 22 and 22 of the two fireproof panel units 21 and 21 arranged side by side. Of these fireproof panel units 21, 21, the base material 23 </ b> A made of a square pipe at the side edge of one fireproof panel unit 21 has a half portion protruding from the side edge of the fireproof panel 22 to the side. 23A is arranged at a position where the vertical joint 35 is closed indoors. The base material 23 made of lip groove steel at the side edge of the other fireproof panel unit 21 is connected to the side surface of the base material 23A that closes the vertical joint 35 at the web portion. The connection may be made by bolts or welding, or by both bolts and welding. Here, both base materials 23 and 23A are connected from the web of the base material 23 made of lip channel steel by a one-side bolt 33 penetrating the side plate portion of the base material 23A made of a square pipe. As described above, the one-side bolt 33 is a shaft-like fastening tool that can be prevented from being pulled out or tightened by being deformed to the outer peripheral side by expanding or bending the other end by work from one end as described above. The end portion to perform the lip groove is the base material 23 side of the lip groove shape, and the tip portion to be deformed is the inner side of the base material 23A made of a square pipe. Both base materials 23 and 23A are provided with bolt insertion holes (not shown) through which the one-side bolts 33 are inserted. In this embodiment, the joint plate 16 is interposed between the base materials 23 and 23A to be connected to reinforce the connecting portion.

The two base materials 23 and 23 </ b> A connected to each other are joined to the fastener 14 installed in the building frame 26. The fastener 14 is installed in the building housing 26 in the same manner as the fastener 14 described with reference to FIG. In FIG. 4, either one of the two base materials 23, 23 </ b> A may be joined to the fastener 14, but here both base materials 23, 23 </ b> A are joined to the fastener 14 using bolts 36, 37. Yes. In addition, as for the joining of the base material 23A made of a square pipe to the fastener 14 with the bolt 37, if the upper end of the base material 23A is a height close to the installation position of the fastener 14, the bolt 37 is connected from the internal space to the fastener 14 side. It is also possible to insert it. If a one-side bolt is used as the bolt 37, joining from the fastener 14 side is also possible. In the case of the base material 23 made of lip channel steel, by inserting a hand or a tool through the opening, the bolt 36 can be inserted and joined from the inner space to the fastener 14 side.
The base material 23 made of the lip groove steel is provided with an opening prevention plate 38 for joining the lips facing each other, thereby suppressing deformation of the base material 23 during heating and preventing deterioration in fire resistance. ing.

  The steel plates 28 on the front side of the fireproof panels 22, 22 arranged side by side have bent end portions 28 a, 28 b that are folded in a Z-shaped cross section and overlap each other in the vertical joint 35 at the side edge on the vertical joint 35 side. Then, the overlapping portion of the bent end portions 28a and 28b is connected to the front surface of the base material 23A that closes the vertical joint 35 by another fixing tool 34 such as a tapping screw with a drill. A front portion of the vertical joint 35 surrounded by the bent end portions 28a and 28b is filled with a seal 39 serving as a rain barrier. The seal 39 may be a wet sealant or a rubber gasket.

  According to the fireproof panel connection structure having the above configuration, as shown in FIG. 4, the vertical joint 35 formed between the fireproof panels 22 and 22 is closed indoors by the base material 23 </ b> A of one fireproof panel unit 21. The fire resistance required for the joint 35 can be secured. Another base material 23 is additionally arranged so as to follow the base material 23A that closes the vertical joint 35, and both the base materials 23, 23A are connected to each other, and both of the two connected base materials 23, 23A or Since one side is joined to the fastener 14 of the building frame 26, the other fireproof panel unit 21 does not cause a problem in fixing the fireproof panel 22 to the base material 23, and does not cause a problem in fireproof performance and fixing. , Foundation integrated construction becomes possible. In this embodiment, the base material 23A that secures fire resistance disposed at a position that closes the vertical joint 35 and the additionally disposed base material 23 are connected by a one-side bolt 33 in this embodiment, so that both fire resistance and strength are sufficient. Performance can be obtained.

Since a plurality of refractory panels 22 can be installed together as a base-integrated refractory panel unit 21, labor saving and a shorter construction period can be achieved as compared with a construction method in which the refractory panels 22 are lifted one by one. In addition, since the work of attaching the base materials 23 and 23A of the fireproof panel unit 21 to the building frame 26 can be performed from the slab 31 or the beam 41 in the building frame 26, a scaffold that has been conventionally required on the outer periphery of the building frame 26 is provided. There is no need to build and remove scaffolding, and the impact of construction delays such as exterior work caused by the scaffolding is reduced. For example, it was necessary to use a total platform scaffolding, but only a work platform or a gondola could be used as a scaffolding for stopping water and fixing screws in vertical joints. The absence of scaffolding work contributes to the improvement of construction safety.
As an additional effect, when using an open joint construction method that eliminates the need for sealing material installation or gasket insertion from an external scaffold, or a pre-installed gasket joint construction method, external work using a lift vehicle or gondola is also possible. Can be eliminated.

  In the above embodiment, as shown in FIG. 4, the side edge of the other fireproof panel unit 21 is formed on the side surface of the base material 23 </ b> A of the side edge of one fireproof panel unit 21 at the position where the vertical joint 35 is closed indoors. The one side bolt 33 is used to connect the two base materials 23. In addition, the two base materials 23, 23A are connected as shown in FIG. You may carry out with the through bolt 40 which penetrates. In the case of the embodiment shown in the drawing, only the base material 23 made of one lip groove steel is joined to the fastener 14 with the bolt 36 among the two base materials 23 and 23A. Further, a joint plate 17 for reinforcement is arranged at the bolt insertion portion of the web of the base material 23. Other configurations are the same as those in FIG.

  10 and 11 show the process of assembling the fireproof panel unit 21. FIG. In the grounding process for assembling the fireproof panel unit 21, for example, the groundwork base 1 shown in FIG. In this groundwork frame 1, lower and upper jig mounting bars 12, 13 are provided on the groundwork frame body 2, which is constructed of a steel frame, so as to be positioned above and below each other. A plurality of lower end fixing jigs 3 and upper side fixing jigs 4 for supporting the base material are attached. Further, a panel lifting device 24 such as a hoist is installed at the upper end of the groundwork frame main body 2.

  The lower end fixing jig 3 and the upper side fixing jig 4 support the lower ends and upper portions of the base materials 23 and 23A, and support the base materials 23 and 23A in a standing posture in parallel. The fireproof panels 22 are lifted by the panel lifting device 24 one by one on the plurality of base materials 23, 23A supported in this standing posture and attached in order from the bottom. Thereby, the fireproof panel unit 21 is assembled in a standing posture. The assembled fireproof panel unit 21 is lifted using a lifting device (not shown) such as a crane and attached to the building frame 26.

DESCRIPTION OF SYMBOLS 1 ... Ground frame 14 ... Fastener 21 ... Fireproof panel unit 22 ... Fireproof panel 23, 23A ... Base material 26 ... Building frame 33 ... One side bolt 35 ... Vertical joint 38 ... Opening stop plate 40 ... Through bolt

Claims (5)

A plurality of fire-resistant panels arranged in a row are attached to a plurality of parallel bar-shaped base materials extending in the direction of the fire-resistant panels to form a fire-resistant panel unit, and the fire-resistant panel unit is perpendicular to the direction of the fire-resistant panels. A plurality of fireproof panel connection structures installed in a building frame,
The base material of the adjacent side of one of the adjacent fireproof panel units is a square pipe, and a half portion protrudes from the side edge serving as the adjacent side of the fireproof panel, and between the fireproof panels of both fireproof panel units. The base material on the adjacent side of the other fireproof panel unit is a lip groove steel, and the web faces the outside of the fireproof panel, and the fireproof panel. Of the two adjacent base materials of the lip channel steel, and is connected to the side surface of the base material at a position blocking the joint on the indoor side . Only the base material is joined to the fastener installed in the building frame, and this fastener is biased toward the base material side made of the lip groove shape steel among the base material made of the square pipe and the base material made of the lip groove shape steel. Established ,
The fireproof panel is an outer wall panel, and constitutes an outer wall panel unit which is the fireproof panel unit arranged in the vertical direction, and the joint is a vertical joint generated between the outer wall panels of the left and right outer wall panel units. Is in the middle of the width of the base material of the square pipe, and a seal serving as a rain barrier is filled in the vertical joint . The fireproof panel connection structure according to claim 1 , wherein an opening prevention plate is provided for joining between facing lips of the base material made of the lip groove steel. The connection structure of the fireproof panel of Claim 1 or Claim 2 WHEREIN: The connection structure of the said 2 base material mutually connected with the bolt or welding, or both the bolt and welding. The fireproof panel connection structure according to any one of claims 1 to 3 , wherein the two base materials are connected to each other with a through bolt that penetrates the base material at a position where the joint is closed. Fireproof panel connection structure. The fireproof panel connection structure according to any one of claims 1 to 3 , wherein the two base materials are connected to each other with one-side bolts.

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