JP2015081172A - Construction method for high place installation structure and suspension jig used for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a construction method for a high place installation structure which can reduce a construction period and a construction cost with a significant reduction in installation work using a scaffold by workers and improve the working efficiency, and a suspension jig that can horizontally lift up without grasping a gravity position of a transportation object.SOLUTION: A construction method for a high place installation structure, which uses a hoist type crane 1 comprising a plurality of hoists 2a and the like independently movable along a first rail 14a and a second rail 14b, includes a step of assembling a transportation object into a predetermined form, a step of loading or connecting the assembled transportation object on or to a suspension jig, a step of connecting a beam frame 16 so as to be perpendicular to a plurality of wire ropes 5 suspended from respective hoists 2a, a step of making all the hoists 2a lift up the beam frame 16 in synchronization, a step of making all the hoists 2a traverse the beam frame 16 in synchronization, and a step of fixing the transportation object W.

Description

  The present invention relates to a construction method for a high-place installation structure and a hanging jig used therefor.

  Conventionally, when installing a structure such as a piping rack from the ceiling or wall of a building using a hoisting tool, the material lifted with a hoist or the like by installing a biquet scaffolding etc. is put into a predetermined place by the worker's manual work. It is constructed by the installation method of scaffolding. In addition, a heavy object transported by a hoist crane or the like needs to be transported so that the center of gravity position of the transported object coincides with the lifting center position. Therefore, the hoist type crane or the like is configured so that the center of gravity position of the conveyed product can be adjusted so as to coincide with the lifting center position via a hanging jig or the like. For example, it is like patent document 1.

  However, with the technique described in Patent Document 1, it is difficult to lift an object whose center of gravity cannot be grasped because of its complicated shape. Further, in the hoist type crane, the inclination of the conveyed object increases in proportion to the positional deviation between the gravity center position of the conveyed object and the lifting center position of the lifting jig. Therefore, in piping rack construction, etc., in the building, the transported object in which the position of the center of gravity is easily grasped is lifted horizontally by a hoist crane, and each time it is manually moved from a picket scaffold etc. to a predetermined position. It had to be installed and was inefficient.

JP-A-10-87268

  The object of the present invention is to significantly reduce the installation work by an operator using a scaffold or the like, to reduce the construction period and construction cost, and to improve the work efficiency, and the construction method of the high place installation structure, and An object of the present invention is to provide a lifting jig that can be lifted horizontally without grasping the position of the center of gravity of a conveyed product.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  That is, the present invention is a method for constructing a high-altitude installation structure using a hoist crane composed of a plurality of hoists that can move independently on a rail, the steps of assembling a transported object in a predetermined form, A step of loading or connecting the transported material to the hanging jig, a step of connecting the hanging jig to the wire rope so as to be perpendicular to the plurality of wire ropes suspended from the plurality of hoists, and all Lifting and / or hanging the lifting jig on which the object is loaded synchronously with the hoist, and horizontally moving the hanging jig on which the object is loaded synchronously with all hoists, And a step of fixing the conveyed product at a predetermined position.

  The present invention is a hanging jig used in a construction method for a high-place installation structure using a hoist crane composed of a plurality of hoists movable independently on a rail, and a plurality of hanging jigs suspended from the plurality of hoists It is connected to the wire rope so as to be perpendicular to the wire rope.

  In the present invention, the hanging jig is composed of one or more beam members, and one beam member is connected to the pair of hoists.

  As effects of the present invention, the following effects can be obtained.

  In the present invention, it is not necessary to carry out the assembly work of the conveyed item in the air, and the conveyed item is stably and easily conveyed to a predetermined position regardless of the position of the center of gravity with respect to the hoist type crane. Thereby, the installation work by an operator using a scaffold or the like can be greatly reduced, the construction period and construction cost can be reduced, and the work efficiency can be improved.

  In the present invention, the conveyed product is supported in a state where the weight of the conveyed product acts only in the axial direction of the wire rope regardless of the position of the center of gravity of the conveyed product. Thereby, it can lift up horizontally, without grasping | ascertaining the gravity center position of a conveyed product.

  In this invention, a conveyed product is supported in the state which acted only to the axial direction of the wire rope by changing the shape of a hanging jig according to the magnitude | size of a conveyed product. Thereby, it can lift up horizontally, without grasping | ascertaining the gravity center position of a conveyed product.

The perspective view which shows the whole structure of the hoist type crane which concerns on one Embodiment of the construction method of the high location installation structure of this invention. The block diagram which shows the control structure of the hoist which concerns on one Embodiment of the construction method of the high location installation structure of this invention. The block diagram which shows the control structure of the hoist type crane which concerns on 1st embodiment of the construction method of the high location installation structure of this invention. (A) Schematic side view showing the relationship with the position of the center of gravity of the transported object in the hoist type crane according to the first embodiment of the construction method of the height installation structure of the present invention (b) of the height installation structure of the present invention The front schematic diagram which shows the relationship with the gravity center position of the conveyed product in the hoist type crane which concerns on 1st embodiment of a construction method. (A) Schematic which shows the relationship of the distance between hoists in the hoist type crane which concerns on 1st embodiment of the construction method of the height installation structure of this invention (b) Of the construction method of the height installation structure of this invention Side surface schematic diagram which shows the state of the conveyed product inclination in the hoist type crane which concerns on 1st embodiment. The figure which shows the flowchart showing the aspect of the process in the construction method of the high location installation structure of this invention. The side schematic diagram which shows the aspect of the piping rack installation preparation in the construction method of the high location installation structure of this invention. The front schematic diagram which shows the piping rack installation state by the hoist type crane in the construction method of the high location installation structure of this invention.

  First, the hoist type crane 1 which is one Embodiment of the hoist type crane of the construction method of the high location installation structure which concerns on this invention is demonstrated using FIGS. 1-3. In the following description, the direction in which the hoist moves on the rail is described as the X direction, the direction orthogonal to the X direction is the Y direction, and the direction in which the hoist winds and unwinds the wire rope 5 is described as the Z direction. In addition, in this embodiment, although the hoist type crane 1 which consists of several hoists which can move independently on a rail is demonstrated, it is not limited to this, The trolley (trolley) which can move on a rail A trolley crane in which a plurality of hoists are mounted may be used.

  As shown in FIG. 1 and FIG. 2, the hoist type crane 1 lifts and moves the conveyed product W. The hoist crane 1 includes a first hoist 2a, a second hoist 2b, a third hoist 2c, a fourth hoist 2d, a first rail 14a, a second rail 14b, an operation terminal 15a, and a beam frame 16 which is a hanging jig. doing.

  The 1st hoist 2a, the 2nd hoist 2b, the 3rd hoist 2c, and the 4th hoist 2d move on the 1st rail 14a or the 2nd rail 14b, and wind up and down the wire rope 5. The first hoist 2a, the second hoist 2b, the third hoist 2c, and the fourth hoist 2d (hereinafter sometimes simply referred to as “hoists 2a, 2b, 2c, and 2d”) are the hoisting device 3, the hoisting inverter 7, A winding pulse generator 8, a moving device 9, a moving inverter 11, a moving pulse generator 12, a length meter 13 and a control device 15 are provided.

  The first hoist 2a and the second hoist 2b are arranged on the first rail 14a installed on the ceiling of the building B. The 3rd hoist 2c and the 4th hoist 2d are arrange | positioned on the 2nd rail 14b installed in the ceiling of the building B in parallel with the 1st rail 14a. The hoists 2a, 2b, 2c, and 2d are configured to be able to move independently on the first rail 14a or the second rail 14b by the moving device 9.

  The hoisting device 3 rotates a drum (not shown) by a hoisting motor 4 to wind and lower the wire rope 5. At the tip of the wire rope 5, a crane hook 6 is provided for attaching a conveyed product W and a hanging jig described later.

  The winding inverter 7 converts the electric power from the primary power source P into electric power of frequency, voltage, and current necessary for driving the winding motor 4 and supplies the electric power.

  The winding inverter 7 is connected to the primary power supply P and can acquire power from the primary power supply P. The winding inverter 7 is connected to the winding motor 4 and can supply the converted electric power to the winding motor 4.

  The winding pulse generator (PG) 8 generates a pulse as a control signal for the winding inverter 7.

  The moving device 9 rotates a roller (not shown) by the moving motor 10 to move the hoist on the first rail 14a or the second rail 14b.

  The moving inverter 11 converts electric power from the primary power supply P into electric power having a frequency, voltage, and current necessary for driving the moving motor 10 and supplies the electric power.

  The moving inverter 11 is connected to the primary power source P and can acquire power from the primary power source P. Further, the moving inverter 11 is connected to the moving motor 10 and can supply the converted electric power to the moving motor 10.

  The moving pulse generator (PG) 12 generates a pulse as a control signal for the moving inverter 11.

  The length meter 13 measures the distance from the reference position (for example, a laser length meter). That is, the length meter 13 can measure the distances of the hoists 2a, 2b, 2c, and 2d from the reference position. Specifically, the length measuring device 13 of the first hoist 2a uses an unillustrated origin position provided on the first rail 14a as a reference position, and the length measuring device 13 of the second hoist 2b uses the first hoist 2a as a reference position. The length measuring device 13 of the third hoist 2c uses an unillustrated origin position provided on the second rail 14b as a reference position, and the length measuring device 13 of the fourth hoist 2d uses the third hoist 2c as a reference position.

  The control device 15 controls the winding inverter 7 and the moving inverter 11. The control device 15 may actually have a configuration in which a CPU, ROM, RAM, HDD, and the like are connected by a bus (for example, PLC), or may be configured by a one-chip LSI or the like. Good. The control device 15 stores various programs for controlling the winding inverter 7 and the moving inverter 11.

  The operation terminal 15a performs hoist operation. The operation terminal 15a is composed of, for example, a touch panel type operation terminal 15a. The operation terminal 15a can input a movement and stop command for each hoist 2a, 2b, 2c, and 2d, a command for starting synchronous control of the four hoists 2a, 2b, 2c, and 2d, and various set values.

  The control device 15 is connected to the winding inverter 7 and the moving inverter 11 and can control the frequency, voltage, current, power, and supply timing converted by the winding inverter 7 and the moving inverter 11, respectively.

  The control device 15 is connected to the winding pulse generator 8 and the moving pulse generator 12 and can acquire a pulse as a control signal generated by the winding pulse generator 8 and the moving pulse generator 12. The control device 15 can synchronize the operation among the hoists 2a, 2b, 2c, and 2d based on the acquired pulse. Further, the control device 15 can calculate the winding amount and the winding amount of the wire rope 5 by the winding device 3 and the moving amount of the moving device 9 based on the acquired pulse.

  The control device 15 is connected to the length meter 13 and can acquire the distance from the reference position detected by the length meter 13.

  As shown in FIG. 3, the control device 15 of the first hoist 2a and the control device 15 of the second hoist 2b are connected by a power cable and a communication cable. The control device 15 of the third hoist 2c and the control device 15 of the fourth hoist 2d are connected by a power cable and a communication cable. Furthermore, the control device 15 of the first hoist 2a and the control device 15 of the third hoist 2c are connected by a power cable and a communication cable. By comprising in this way, the control apparatus 15 of the 1st hoist 2a can acquire or transmit a control signal between the control apparatuses 15 of another hoist as a reference | standard control apparatus of the hoist type crane 1. FIG. Specifically, the control device 15 of the first hoist 2a can acquire the distance from the reference position acquired by the control devices 15 of the other hoists 2b, 2c, and 2d, the pulse, and the generated control signal. Further, in addition to the configuration in which a control device is provided for each individual hoist, the configuration may be such that each hoist is controlled by a single control device.

  The control device 15 of the first hoist 2a is connected to the operation terminal 15a, acquires a control signal from the operation terminal 15a, and generates control signals for the winding inverter 7 and the moving inverter 11 based on the acquired control signal. can do. In the present embodiment, the hoist crane 1 is connected to the control device 15 of the other hoists 2b, 2c, and 2d using the control device 15 of the first hoist 2a as a reference control device, but is not limited thereto. Not. For example, the hoist type crane 1 synchronizes the second hoist 2b using the control device 15 of the first hoist 2a as a reference control device, and synchronizes the fourth hoist 2d using the control device 15 of the third hoist 2c as a reference control device. It is good also as stand synchronous control. In this case, the operation terminal 15a is connected to the control device 15 of the first hoist 2a and the control device 15 of the third hoist 2c.

  As shown in FIG. 1, a beam frame 16 which is a hanging jig according to the present invention is for loading a conveyed product W. The beam frame 16 is a frame configured by arranging a first beam 16a and a second beam 16b, which are beam members that support the transported object W, in parallel and connected by connecting members 16c and 16d. . The first beam 16a and the second beam 16b are made of a steel material such as H steel. The beam frame 16 is attached via a crane hook 6 to a wire rope 5 suspended from the hoists 2a, 2b, 2c and 2d in the Z direction with the axial direction of the first beam 16a and the second beam 16b as the Y direction. It is done. The beam frame 16 is formed in a frame shape by connecting both end portions of the first beam 16a and the second beam 16b arranged in parallel to each other by connecting members 16c and 16d made of square pipes or the like. It is configured.

  Specifically, the first beam 16a of the beam frame 16 has a wire rope 5 of the first hoist 2a attached to one end of the Y direction side via a crane hook 6, and the other end of the Y direction side. In this case, the wire rope 5 of the third hoist 2c is attached via the crane hook 6. At this time, the first beam 16a is directed to the wire rope 5 suspended from the first hoist 2a and the third hoist 2c. It is installed to be vertical. Similarly, the 2nd beam 16b is attached to the wire rope 5 suspended from the 2nd hoist 2b and the 4th hoist 2d via the crane hook 6. FIG. That is, the beam frame 16 is suspended from the wire ropes 5 suspended from the hoists 2a, 2b, 2c, and 2d with a suspension angle of 0 degree.

  Below, the aspect at the time of lifting of the hoist type crane 1 is demonstrated concretely using FIG. 4 and FIG.

  As shown in FIG. 4 (a), the hoist crane 1 starts from the center of gravity position G of the transported object W when the transported object W is loaded across the first beam 16a and the second beam 16b of the beam frame 16. The weight of the conveyed product W is distributed to the first beam 16a and the second beam 16b according to the distance to the first beam 16a and the distance to the second beam 16b.

  Furthermore, as shown in FIG.4 (b), the hoist type crane 1 is the distance from the gravity center position G of the conveyed product W to the position where the wire rope 5 of the 1st hoist 2a is attached in the 1st beam 16a. According to the distance to the position where the wire rope 5 of the 3rd hoist 2c is attached, the weight of the conveyed product W is distributed to the wire rope 5 of the 1st hoist 2a and the wire rope 5 of the 3rd hoist 2c. . Similarly, in the second beam 16b, the hoist crane 1 has the weight of the transported object W of the wire hoist 2 of the second hoist 2b and the fourth hoist 2d according to the distance from the center of gravity position G of the transported object W. It is distributed to the wire rope 5.

  In the wire ropes 5 of the hoists 2 a, 2 b, 2 c, and 2 d, the weight of the conveyed product W distributed as described above is applied only in the Z direction, which is the axial direction of each wire rope 5. That is, a component force in the X direction or Y direction of the weight of the conveyed product W is not generated in the wire ropes 5 of the hoists 2a, 2b, 2c, and 2d. For this reason, the hoist type crane 1 can maintain the horizontal state without the beam frame 16 moving in the X direction and the Y direction regardless of the gravity center position G of the conveyed product W. In the present embodiment, the conveyed product W is loaded on the beam frame 16, but the present invention is not limited to this, and a configuration in which the conveyed product W is suspended from the beam frame 16 may be used.

  The hoist type crane 1 synchronizes the 2nd hoist 2b, the 3rd hoist 2c, and the 4th hoist 2d with the 1st hoist 2a which comprises the control apparatus 15 which is a reference | standard control apparatus, when moving the conveyed product W to a Z direction. Then, the conveyed product W is moved in the Z direction. Specifically, as shown in FIG. 5A, the control device 15 of the first hoist 2a is configured such that the distance L2 between the first hoist 2a and the second hoist 2b acquired by the control device 15 of the second hoist 2b, And the distance L3 between the 1st rail 14a and the 2nd rail 14b input from the operation terminal 15a is acquired (refer FIG. 4). Further, the control device 15 calculates a distance L4 between the first hoist 2a and the fourth hoist 2d from the distance L2 and the distance L3.

  Next, the control device 15 of the first hoist 2a, based on the pulse of the hoisting device 3 acquired from the control device 15 of each hoist, the hoisting amount of the first hoist 2a and the hoisting amount of another hoist, or the first hoist Deviations ΔS2, ΔS3, and ΔS4 between the amount of lowering 2a and the amount of other hoist are calculated (see FIG. 5B).

  And the control apparatus 15 of the 1st hoist 2a is the distance L2 and deviation (DELTA) S2, the distance L3 and deviation (DELTA) S3, and the distance L4 and deviation (DELTA) S4 of the conveyed product W on the basis of the winding position or winding position of the 1st hoist 2a. The inclination between the X direction and the Y direction is calculated.

  When the calculated inclination of the conveyed product W is within the allowable range, the control device 15 determines that the cooperative operation by synchronization is appropriately performed, and continues the movement of the conveyed product W. When the calculated inclination of the transported object W is larger than the allowable range, the control device 15 determines that there is a possibility that the transported object W may be displaced or slipped, and stops the operation of the hoists 2a, 2b, 2c, and 2d. Is configured to do. That is, the hoist type crane 1 can carry with the synchronous precision which the load shift and sliding of the conveyed product W do not arise on the basis of the 1st hoist 2a. In the hoist type crane 1, a distance meter that separately measures the feeding amount and the winding amount of the wire rope 5 in order to take into account measurement errors due to the elongation of the wire ropes 5 of the hoists 2 a, 2 b, 2 c, and 2 d. 17 may be provided.

  The hoist type crane 1 configured in this way can be moved up and down and moved by each hoist while the transported object W is loaded on the beam frame 16. In other words, regardless of the center of gravity position G of the conveyed product W, the plurality of hoists are conveyed in a coordinated operation in a state where the weight of the conveyed product W acts only in the axial direction of the wire rope 5. Thereby, it can lift horizontally, without grasping | ascertaining the gravity center position G of the conveyed product W. FIG.

  Moreover, the hoist type crane 1 can use the beam frame 16 suitable for the shape of the conveyed product W by moving the 1st hoist 2a and the 3rd hoist 2c, or the 2nd hoist 2b and the 4th hoist 2d. . Thereby, the hoist type crane 1 can convey the conveyed product W stably.

  Moreover, the hoist type crane 1 is improved in positioning accuracy as the hoist type crane 1 without accumulating errors in position control of the plurality of hoists 2a, 2b, 2c, and 2d. Thereby, it can lift horizontally, without grasping | ascertaining the gravity center position G of the conveyed product W. FIG.

  Furthermore, since the hoist type crane 1 makes the hoist angle in each hoist 2a * 2b * 2c * 2d 0 degree, the tension coefficient of the wire rope 5 of each hoist 2a * 2b * 2c * 2d becomes 1.0. . That is, the hoist type crane 1 can reduce the size of the hoists 2a, 2b, 2c, and 2d because the tension applied to the wire ropes 5 of the hoists 2a, 2b, 2c, and 2d is not increased by the influence of the hanging angle. Can do.

  Next, with reference to FIGS. 6 to 8, an embodiment of the installation work of the piping rack 18 and the piping 19, which is the construction method of the high-place installation structure according to the present invention using the hoist type crane 1, is specifically described. Explained.

  As shown in FIG. 7, the piping rack 18 supports the piping 19 when the piping 19 is installed on the ceiling of the building B. The piping rack 18 is configured by forming a steel material such as channel steel into a shape that can support a plurality of piping 19 and the like. The piping rack 18 is provided with a hook portion 18c for supporting the piping rack 18 on the beam of the building B. The piping 19 is a collection of piping, air conditioning ducts, electrical wiring, and the like, which are facilities in the building B, selected as appropriate.

  The first piping rack 18a, the piping 19, and the like, which are one of the piping racks 18, are carried into the building B in a state of being assembled to a state where they can be installed in the building B at a place other than the building B to be installed. The

  As shown in FIG. 6 and FIG. 7, in step S110, the hoist crane 1 has hoists 2a, 2b, 2c, and 2d arranged at predetermined positions near the installation location of the first piping rack 18a by the operation terminal 15a. And the position is stored, and the process proceeds to step S120.

  In step S120, the beam frame 16 is provided on the floor corresponding to the installation location of the first piping rack 18a. At this time, the beam frame 16 is disposed at a position where the first beam 16a can be vertically connected to the wire rope 5 suspended from the first hoist 2a and the third hoist 2c. At the same time, the beam frame 16 is disposed at a position where the second beam 16b can be vertically connected to the wire rope 5 suspended from the second hoist 2b and the fourth hoist 2d, and the process proceeds to step S130. The beam frame 16 may be provided with a free caster 16e for easy movement.

  In step S <b> 130, the first piping rack 18 a brought into the building B is directly lifted by the hoist crane 1 and loaded on the beam frame 16. At this time, the first piping rack 18a is disposed at a predetermined position using positioning stoppers or the like provided on the first beam 16a and the second beam 16b, and the first beam 16a and the second beam with a vise or the like. 16b is fixed. Further, the beam frame 16 is adjusted so that the horizontalities in the X direction and the Y direction are within a predetermined range in a state where the first piping rack 18a is loaded, and the process proceeds to step S140.

  In step S140, the piping 19 and the like are installed in the first piping rack 18a loaded on the beam frame 16. Furthermore, the first piping rack 18a and the piping 19 are attached with heat insulation processing, heat tracing, instrumentation, and the like, and the process proceeds to step S150.

  In step S150, the second piping rack 18b attached to the building B adjacent to the first piping rack 18a is arranged at a predetermined position while being loaded on another beam frame 16 by the same operation. And the piping 19 grade | etc., Is arrange | positioned at the 2nd piping rack 18b. At this time, the positional relationship between the piping 19 of the first piping rack 18a and the piping 19 of the second piping rack 18b is adjusted, and the process proceeds to step S160.

  In step S160, the hoists 2a, 2b, 2c, and 2d of the hoist type crane 1 are moved to a predetermined position in order to install the stored first piping rack 18a and the like. Then, the crane hook 6 of the wire rope 5 of the first hoist 2 a and the third hoist 2 c is attached (connected) to the first beam 16 a of the beam frame 16. Similarly, the crane hook 6 of the wire rope 5 of the second hoist 2b and the fourth hoist 2d is attached to the second beam 16b of the beam frame 16, and the process proceeds to step S170.

  In process S170, the 1st piping rack 18a etc. are conveyed to an installation place by the hoisting operation | movement by 4 units | sets of hoist 2a * 2b * 2c * 2d of hoist type crane 1 synchronously. Specifically, the beam frame 16 is moved in the Z direction by about several millimeters from the floor surface. Then, in order to prevent a collision between the first piping rack 18a and the like and the adjacent second piping rack 18b and the like, the beam frame 16 is moved in the X direction away from the second piping rack 18b and the like, and then the first It is moved in the Z direction to a position where the collision between the piping rack 18a and the second piping rack 18b and the like can be avoided. Then, after the beam frame 16 is moved in the X direction to the normal lifting position, the beam frame 16 is moved in the Z direction to the installation position of the first piping rack 18a, and the process proceeds to step S180.

  Next, as shown in FIG. 8, in step S180, in order to support the first piping rack 18a and the like on the building B, the beam frame 16 is appropriately moved in the X direction and the Z direction, and the first piping rack 18a. The hook 18c is hooked on the beam of the building B, and the process proceeds to step S190.

  In step S <b> 190, after the piping rack 18 is fixed to the beam of the building B, the piping rack 18 is removed from the beam frame 16. Then, the beam frame 16 is moved in the X direction away from the piping rack 18 and the like. The operation of fixing the piping rack 18 to the building B is performed using a moving scaffold, and the process proceeds to step S200.

  In step S200, the crane hook 6 of the wire rope 5 of the first hoist 2a and the third hoist 2c is removed from the first beam 16a of the beam frame 16. Similarly, the crane hook 6 of the wire rope 5 of the second hoist 2b and the fourth hoist 2d is removed from the second beam 16b of the beam frame 16, and the process proceeds to step S110.

  That is, in step S110, the hoist of the hoist type crane 1 is moved to a predetermined position in order to install the stored second piping rack 18b and the like. And the crane hook 6 of the wire rope 5 of each hoist 2a * 2b * 2c * 2d is attached to another beam frame 16. FIG. Thereafter, the second pipe 19 hook is fixed to the building B by the same operation.

  By using the hoist type crane 1 configured as described above, it is possible to suppress the number of auxiliary workers during transportation. Moreover, it is only necessary to install a small-scale scaffold when fixing the piping rack 18 or the like. That is, since the entire pipe rack 18 is transported by the hoist type crane 1, it is not necessary to transport the transported object W little by little and to perform the installation work each time. In addition, there is no need to install a large-scale scaffold for that purpose. That is, the construction period and construction cost can be reduced. In addition, the occurrence of misalignment or the like of the conveyed product W is suppressed, and the work efficiency of the operator can be improved by reducing the work at a high place.

DESCRIPTION OF SYMBOLS 1 Hoist type crane 2a 1st hoist 2b 2nd hoist 2c 3rd hoist 2d 4th hoist 5 Wire rope 14a 1st rail 14b 2nd rail 16 Beam frame

Claims (3)

A construction method of a high-rise installation structure using a hoist crane composed of a plurality of hoists that can move independently on a rail,
Assembling the conveyed product into a predetermined form;
Loading or connecting the assembled transported object to a hanging jig;
Connecting the hanging jig to the wire rope so as to be perpendicular to the plurality of wire ropes hanging from each hoist;
A process of lifting and / or hanging a lifting jig on which all the hoists are synchronously loaded,
A step of moving all the hoists in synchronization with the lifting jig on which the object is loaded;
Fixing the transported object at a predetermined position;
Construction method for high-altitude installation structures including A hanging jig used in a construction method of a high-place installation structure using a hoist crane composed of a plurality of hoists that can move independently on a rail,
A hanging jig connected to a wire rope so as to be perpendicular to a plurality of wire ropes suspended from a plurality of hoists.   The hanging jig according to claim 2, wherein the hanging jig is composed of one or more beam members, and one beam member is connected to the pair of hoists.

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