JP2019148101A - Installation method and installation device of curing net - Google Patents

Abstract

To provide an installation method and an installation device of a curing net of a low cost type capable of reducing the load of replacement work.SOLUTION: An installation method of a curing net 6 installed around an outer periphery 5 of a building skeleton under construction comprises: a step of installing on a column head part 12 of a column member 2 a temporary member 14 extruding in a direction of an exterior side of the building skeleton 4 to an external side of an external scaffolding 7 space; a step of installing a hoist 16 at an exterior end part of the temporary member 14; a step of installing the column member 2 on the building skeleton 4; a step of hanging down a hanging unit 28 of the hoist 16 from the column member 2 installed on the building skeleton 4, and installing the curing net 6 on the hung-down hanging unit 28; and a step of vertically installing the curing net 6 around the outer periphery 5 of the building skeleton by hanging up the hanging unit 28 of the hoist 16.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a method and an apparatus for attaching a curing net that is temporarily installed on the outer periphery of a frame during construction of a steel frame in construction work.

  Conventionally, in a hierarchical building under construction, in order to prevent the falling of materials and equipment to the outside of the building frame, the outer periphery of the frame is sometimes cured with a vertical vertical net. The general installation method of the vertical curing net is that after the construction of the steel columns and beams on the construction floor is completed, the worker attaches the upper part of the vertical curing net to the uppermost beam via a horizontal wire and hangs the vertical curing net By temporarily lowering it, it is temporarily installed on the outer periphery of the housing.

  However, since the vertical curing net cannot be installed unless the construction of the beam is completed between the steel columns on the outer periphery of the frame, there is a problem that it is difficult to prevent flying falling objects when the beam is installed on the outer periphery of the frame. As a technique for solving such a problem, for example, a curing unit described in Patent Document 1 is known. This curing unit consists of a curing net that covers the two built-in steel columns, a frame that holds the curing net in an expanded state, and two that project from the top of the frame toward the steel column. A bracket and a curing side latching portion that is provided at the tip of each bracket and can be latched with respect to the column-side latching portion at the top of the steel column. According to this configuration, after the construction of the steel column is completed and before the beam is installed, the curing side is inserted into the stigma and the curing unit is installed. Can be installed.

JP 2002-021336 A

  However, in the above-described conventional curing unit of Patent Document 1, before the body edge is attached between steel columns or beams, or the external scaffolding is assembled and installed on the outer periphery of the frame, the curing unit is replaced or re-worked. Since it is necessary, the work cost may increase accordingly. For this reason, there has been a demand for a technique that eliminates the need for replacement and reworking of the curing net for attaching the torso rim and assembling the external scaffold.

  This invention is made | formed in view of the above, Comprising: It aims at providing the attachment method and attachment apparatus of the low-cost type | mold curing net which can reduce replacement work.

  In order to solve the above-described problems and achieve the object, the curing net mounting method according to the present invention is a method of mounting a curing net on the outer periphery of a frame of a building under construction. Installing a temporary member extending outside the space for the external scaffold toward the outside, installing a hoist at the outer end of the temporary member, installing a column member on the housing, and installing on the housing The hoist suspension tool is lowered from the pillar member, and the curing net is attached to the lowered suspension tool, and the hoist suspension tool is raised and the curing net is suspended from the outer periphery of the housing.

  In addition, in the above-described invention, the other curing net mounting method according to the present invention is the above-described invention, in which the curing net is suspended from the outer periphery of the frame, and then the external scaffolding is installed in the space between the curing net and the frame. The method further comprises the steps of: installing the beam member and the trunk edge member on the column member on the back side of the base plate; and, after installing the external scaffolding, the beam member and the trunk edge member, replacing the curing net with the external scaffold. And

  Moreover, the other curing net attachment method according to the present invention is characterized in that, in the above-described invention, after the curing net is replaced with an external scaffold, a step of removing the hoist and the temporary member from the pillar head is further provided.

  Moreover, the other curing net attachment method according to the present invention is characterized in that, in the above-described invention, after the temporary member and the hoist are installed on the column head of the column member, the column member is installed on the housing.

  Further, the curing net attachment device according to the present invention is a device for attaching the curing net to the outer periphery of the frame of the building under construction, and is installed at the column head of the column member constituting the frame, and directed toward the outside of the frame. A temporary member that extends to the outside of the space for the external scaffold, and a hoist that is installed at the outer end of the temporary member and has a lifting device for attaching the curing net. It is characterized in that it is attached to a hanging tool so as to be movable up and down along the outer periphery of the housing according to the operation.

  According to the method for attaching a curing net according to the present invention, a curing net is attached to the outer periphery of a frame of a building under construction, and the outer side of the space for an external scaffold is directed to the column head of the column member toward the outside of the frame. Installing a temporary member that projects to the outside, installing a hoist on the outer end of the temporary member, installing a column member on the housing, and lowering and lowering the hoist suspension from the column member installed on the housing A step of attaching the curing net to the lifting device and a step of raising the lifting device of the hoist and suspending the curing net on the outer periphery of the housing, so that the curing net is suspended outside the space for the external scaffolding, There is an effect that it is possible to eliminate the replacement work of the curing net from the subsequent attachment of the beam member to the attachment of the trunk edge member and the construction of the external scaffold.

  Moreover, according to the other curing net attachment method according to the present invention, after the curing net is suspended from the outer periphery of the frame, the external scaffolding is installed in the space sandwiched between the curing net and the frame, while the back side of the curing net The step of installing the beam member and the trunk edge member on the column member and the step of replacing the curing net with the external scaffolding after the external scaffolding, the beam member and the trunk edge member are installed are provided. There is an effect that the replacement work can be easily performed.

  Moreover, according to the other curing net attachment method according to the present invention, the step of removing the hoist and the temporary member from the column head after the replacement of the curing net to the external scaffold is further provided. In addition, it can be reused for attaching the curing net during the construction work of the upper-layer pillar member, and the construction work of the upper-floor pillar member with respect to the column head is facilitated.

  Moreover, according to the other curing net attachment method according to the present invention, after installing the temporary member and the hoist on the column head of the column member, the column member is installed on the housing. There is an effect that the installation work becomes easy.

  Further, according to the curing net mounting device according to the present invention, the curing net is a device for mounting the curing net on the outer periphery of the building under construction. The curing net is installed on the column head of the column member constituting the frame, and the outside of the frame. A temporary member that extends to the outside of the space for the external scaffold toward the outside, and a hoist that is installed at the outer end of the temporary member and has a lifting device for attaching the curing net, the curing net is a lifting device by a hoist Since it is attached to the lifting tool so that it can be moved up and down along the outer periphery of the housing according to the lifting and lowering movement of the body, by installing a curing net outside the space for the external scaffolding, the attachment of the trunk member from the subsequent attachment of the beam member In addition, the work of rearranging the curing net can be eliminated until the external scaffolding is erected.

FIG. 1 is a schematic view of a building structure under construction to which a curing net attachment method and attachment device according to the present invention are applied. FIG. 2 is a side sectional view of the building frame under construction. FIG. 3 is an enlarged view of a main part of FIG. FIG. 4 is a front perspective view of a building frame showing an embodiment of a curing net attachment method and attachment apparatus according to the present invention, (1) when building a steel frame and (2) when installing a curing net. is there. FIG. 5 is a rear perspective view of a building frame showing an embodiment of a curing net attachment method and attachment device according to the present invention. FIG. 6 is a diagram illustrating an example of a frame construction procedure to which the curing net mounting method and the mounting apparatus according to the present invention are applied.

  DESCRIPTION OF EMBODIMENTS Embodiments of a curing net attachment method and attachment device according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

  This embodiment is applied to curing at the time of steel frame construction in new construction of a middle-rise building 1 as shown in the completed drawing of FIG. FIG. 2 is a side sectional view illustrating a curing plan at the time of steel frame construction. As shown in this figure, the building 1 is composed of a frame 4 having a steel column 2 (column member) and a steel beam 3 (beam member) on each floor. This frame 4 is constructed by the laminating method in which the steel column 2 and the steel beam 3 for the first floor are constructed and then the construction is proceeded to the construction of the upper floor. In addition, this invention is not restricted to the case where it constructs by the laminated construction method which progresses to the construction of the upper floor after constructing the steel pillar 2 and the steel beam 3 for the first floor, The present invention is also applicable when constructing the steel beam 3.

  A curing net 6 is installed on the outer periphery 5 of the housing 4 on the construction floor by the mounting method or the mounting apparatus of the present embodiment, and an external scaffold 7 is installed. The external scaffold 7 is used as a work scaffold for attaching the steel beam 3, the trunk edge member 8, the outer wall panel 9 and the like on the construction floor.

  Next, the installation apparatus and attachment method for attaching the curing net 6 to the outer periphery 5 of the enclosure will be described on the assumption that the construction has been completed up to the floor enclosure of the predetermined floor.

  FIG. 3 is an enlarged view of the main part of FIG. As shown in this figure, the curing net mounting device 10 according to the present embodiment includes a temporary hardware 14 (temporary member) installed on a column head 12 of a built-in steel column 2 and an outer side of the temporary hardware 14. A baby hoist 16 (hoist) installed at the end is provided. In addition, this attachment apparatus 10 is each provided in the column head 12 of the at least 2 steel frame pillar 2 built in the direction perpendicular | vertical to the paper surface of a figure at intervals (for example, span of about 7 m). If it does in this way, the curing net | network 6 can be attached to the position which covers between the at least 2 steel frame pillars 2. FIG. As the column head 12, for example, an erection piece installed at the upper end of the steel column 2 can be used.

  The temporary hardware 14 is a rod-like member that extends horizontally to the outside of the space for the external scaffold 7 toward the outside of the housing 4, and can be made of, for example, channel steel. The base 18 of the temporary hardware 14 is provided with an inverted U-shaped recess 20 in a side view. The concave portion 20 is disposed so as to sandwich the upper end portion of the column head 12 from inside and outside, and is fixed to a bracket 22 at the upper end portion of the column head 12 with a temporary bolt 23.

  The baby hoist 16 has a wire 26 wound around a drum 24 and a hook 28 (hanging tool) attached to the lower end of the wire 26. The baby hoist 16 can move up and down the hook 28 at the lower end of the wire 26 by rotating the drum 24 by wired or wireless operation.

  The curing net 6 is suspended from the hook 28. The curing net 6 is a rectangular sheet-like flexible net, and a frame 30 made of a single tube that holds the curing net 6 in an expanded state is fixed to upper and lower ends thereof. An engagement ring 32 for engaging the hook 28 is attached to the upper frame 30. Therefore, the curing net 6 can be moved up and down along the outer periphery 5 of the housing according to the lifting and lowering operation of the hook 28 by the baby hoist 16. In addition, the width | variety of the curing net | network 6 may be the magnitude | size which covers between the two adjacent steel pillars 2, may be set to the magnitude | size which covers two spans of the steel pillar 2 etc.

Next, the attachment method of the curing net 6 using this attachment apparatus 10 is demonstrated.
First, on the ground or the like, the temporary hardware 14 is installed on the column heads 12 of at least two steel columns 2, and the baby hoist 16 is installed on the outer end of the temporary hardware 14. Subsequently, these steel columns 2 are lifted by a crane or the like and installed on the frame 4. By doing so, the installation work of the temporary hardware 14 and the baby hoist 16 with respect to the column head 12 is facilitated. Instead of doing this, the worker may ascend to the column head 12 and install the temporary hardware 14 and the baby hoist 16 after the steel column 2 is lifted with a crane or the like and installed on the housing 4.

  Next, as shown in FIG. 4 (1), after each baby hoist 16 is lowered and the hook 28 is lowered to the lower floor or the ground, the engagement ring 32 at the upper end of the curing net 6 is attached to the hook 28. . Next, as shown in FIG. 4 (2) and FIG. 5, the baby hoists 16 are moved up in synchronization to raise the hooks 28, and the curing net 6 is suspended from the outer periphery 5 of the housing. In this way, the curing net 6 can be suspended outside the space for the external scaffold 7.

  The curing net 6 should be suspended at a position close to the outer surface of the external scaffold 7 (for example, a position about 50 cm from the outer surface) so that the external scaffold 7 can be rearranged as it is after the external scaffold 7 is installed in a later process. Is preferred. If it does in this way, the rearranging work efficiency of the curing net 6 of a post process will improve.

Next, the construction procedure of the building to which the above attachment method is applied will be described.
As shown in FIG. 6, first, after assembling the external scaffold 7 to the bottom of the construction floor (step S1), the steel column 2 on the construction floor is constructed (step S2), and the curing net 6 is constructed by the above attachment method. Is suspended from the outer periphery 5 of the housing (step S3). Next, on the back side of the curing net 6, the steel beam 3 is erected between the steel columns 2 on the construction floor to construct the steel beam 3 (step S4). Subsequently, the external scaffold 7 is assembled in the space between the curing net 6 and the frame 4 (step S5). Furthermore, attachment of the trunk edge member 8 (for example, vertical trunk edge) and the outer wall panel 9 is performed (step S6). During these operations, even if materials such as bolts and tools fall on the outer periphery 5 of the casing, the falling off to the outside is prevented by the curing net 6.

  Thereafter, the curing net 6 is replaced with the external scaffold 7 (step S7), and the process returns to step S1. Thereby, the replacement work of the curing net 6 can be eliminated from the attachment of the steel beam 3 to the attachment of the trunk edge member 8 and the outer wall panel 9 and the construction of the external scaffold 7. In addition, the reworking of the curing net 6 to the external scaffold 7 can be easily performed.

  In addition, after replacing the curing net 6 with the external scaffold 7, the temporary hardware 14 and the baby hoist 16 may be removed from the column head 12 and lowered to the ground with a crane or the like. If it does in this way, the removed temporary hardware 14 and the baby hoist 16 can be reused again for attachment of the curing net 6 at the time of construction work of the steel column 2 on the upper floor. Moreover, the construction work of the steel column 2 of the upper floor with respect to the column head 12 becomes easy.

  As described above, according to the method for attaching a curing net according to the present invention, the curing net is attached to the outer periphery of the frame of the building under construction, and is externally attached to the column head of the column member toward the outside of the frame. A step of installing a temporary member extending to the outside of the space for the scaffold, a step of installing a hoist at the outer end of the temporary member, a step of installing the column member on the frame, and a step of installing the hoist from the column member installed on the frame There is a step of lowering the suspension and attaching the curing net to the lowered suspension and a step of raising the hoist suspension and suspending the curing net on the outer periphery of the frame. By suspending, it is possible to eliminate the replacement work of the curing net from the subsequent attachment of the beam member to the attachment of the trunk edge member and the construction of the external scaffold.

  Moreover, according to the other curing net attachment method according to the present invention, after the curing net is suspended from the outer periphery of the frame, the external scaffolding is installed in the space sandwiched between the curing net and the frame, while the back side of the curing net The step of installing the beam member and the trunk edge member on the column member and the step of replacing the curing net with the external scaffolding after the external scaffolding, the beam member and the trunk edge member are installed are provided. Replacement work can be done easily.

  Moreover, according to the other curing net attachment method according to the present invention, the step of removing the hoist and the temporary member from the column head after the replacement of the curing net to the external scaffold is further provided. In addition, it can be reused to attach a curing net during the construction work of the upper-layer pillar member, and the construction work of the upper-floor pillar member with respect to the column head is facilitated.

  Moreover, according to the other curing net attachment method according to the present invention, after installing the temporary member and the hoist on the column head of the column member, the column member is installed on the housing. Installation work becomes easy.

  Further, according to the curing net mounting device according to the present invention, the curing net is a device for mounting the curing net on the outer periphery of the building under construction. The curing net is installed on the column head of the column member constituting the frame, and the outside of the frame. A temporary member that extends to the outside of the space for the external scaffold toward the outside, and a hoist that is installed at the outer end of the temporary member and has a lifting device for attaching the curing net, the curing net is a lifting device by a hoist Since it is attached to the lifting tool so that it can be moved up and down along the outer periphery of the housing according to the lifting and lowering movement of the body, by installing a curing net outside the space for the external scaffolding, the attachment of the trunk member from the subsequent attachment of the beam member In addition, it is possible to eliminate the replacement work of the curing net until the construction of the external scaffold.

  As described above, the curing net attachment method and attachment device according to the present invention are useful for the curing net attachment method temporarily provided on the outer periphery of the frame during the construction of the steel frame in the construction work, and particularly reduce the refilling work. Suitable for

1 Building 2 Steel column (column member)
3 Steel beams (beam members)
4 frame 5 outer periphery, frame outer periphery 6 curing net 7 external scaffold 8 trunk edge member 9 outer wall panel 10 curing net mounting device 12 column head 14 temporary metal fitting (temporary member)
16 Baby Hoist (Hoist)
18 Base 20 Recess 22 Bracket 24 Drum 26 Wire 28 Hook
30 Frame 32 Engagement ring

Claims (5)

A method of attaching a curing net to the outer periphery of a building under construction,
A step of installing a temporary member on the column head of the column member that extends to the outside of the space for the external scaffold toward the outside of the housing;
Installing a hoist at the outer end of the temporary member;
Installing the column member on the housing;
A step of lowering a hoist hanger from a pillar member installed on the frame, and attaching a curing net to the hung hanger,
A method for attaching a curing net, comprising the step of raising a hoisting tool and suspending the curing net on the outer periphery of the housing. After suspending the curing net on the outer periphery of the frame, installing an external scaffold in the space sandwiched between the curing net and the frame, on the back side of the curing net, installing the beam member and the trunk edge member on the column member;
The method for attaching a curing net according to claim 1, further comprising the step of replacing the curing net with an external scaffold after installing the external scaffold, the beam member, and the trunk edge member.   The method for attaching a curing net according to claim 2, further comprising a step of removing the hoist and the temporary member from the pillar head after the curing net is replaced with an external scaffold.   The method for attaching a curing net according to any one of claims 1 to 3, wherein after the temporary member and the hoist are installed on the column head of the column member, the column member is installed on the housing. A device for attaching a curing net to the outer periphery of a building under construction,
A temporary member that is installed at the column head of the column member that constitutes the frame, and extends to the outside of the space for the external scaffold toward the outside of the frame;
A hoist installed at the outer end of the temporary member and having a lifting tool for attaching a curing net;
The curing net is attached to the lifting tool so as to be lifted and lowered along the outer periphery of the housing in accordance with the lifting operation of the lifting tool by the hoist.

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