JP2011121667A - Method and device for constructing indoor crane - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a construction method of an indoor crane, for carrying out a construction within a reduced space and a short time period. <P>SOLUTION: Prior to lifting to lay or lowering to remove a girder W and the like of an overhead traveling crane over overhead traveling rails 18 in a building 10, four wire clamp jacks 15a-15d are intensively and temporarily installed to the center portion of a ceiling steel frame 12 of the building 10. The girder W and the like are lifted to lay or lowered to remove with use of the four wire clamp jacks 15a-15d. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a construction method and apparatus for an indoor crane such as a ladle crane or an overhead traveling crane in a building.

  In general, when this type of indoor crane is mounted on or under construction, regardless of whether the building is newly installed or existing, either the tow method, the winch method (building beam method), or the jack-up (down) method described later is used. It is well known to be adopted.

  For example, as shown in FIG. 5, the wrecker method uses a wrecker (crawler) 101 which is a large heavy machine from the outside of the building 100 (in some cases, from inside). This is a construction method of overhanging on the rail 103.

  For example, as shown in FIG. 6, the winch method (building beam method) is a winch 107a in which a hanging tool 105a and a hanging tool 105b suspended from a beam 104 of the building 100 are installed on the floor via wires 106a and 106b, respectively. This is a method of winding up girder etc. by 107b.

  For example, as shown in FIG. 7, the jack-up (down) construction method pushes up the girder (main girder) 102 with jacks 108 a and 108 b and then temporarily receives the girder (main girder) 102 on the turntable 110 on the support frame 109. For example, the girder (main girder) 102 is overlaid on the rail 103 in the building.

JP 2002-255477 A Japanese Patent Laid-Open No. 9-240988

However, when constructing an indoor crane,
(1) The space in the building is limited, and particularly in the existing building, the facilities are already arranged, so the space for installing the wrecker (crawler) 101, winches 107a and 107b, jacks 108a and 108b, etc. There is no.
(2) Regardless of whether a new building or an existing building is installed, there is no space for installing the wrecker (crawler) 101 such that the building is adjacent to the outside of the building.
(3) Regardless of whether the building is newly installed or existing, the route for routing the wires 106a, 106b of the winches 107a, 107b is limited in the building, and a turning pulley is required for routing, and installation in the building Reinforcement of parts (beams, etc.) is required.
Thus, any of the above-described construction methods has a problem that construction is very difficult and the pre-setup construction period becomes long.

  In addition, in the construction method of an outdoor crane, in patent document 1, the jackup apparatus was installed in each of the four support | pillars erected in the crane assembly site, and the upper structure body of the crane via the suspension beam by this jackup apparatus. A crane upper structure lifting device for raising and lowering a crane is disclosed, and in Patent Document 2, a boom / girder block lifting machine is mounted on a portal post erected on a crane assembly site, and the boom / girder block lifting machine is used. An assembly method of a bridge crane for raising and lowering a boom and girder block is disclosed.

  However, in the construction methods disclosed in Patent Documents 1 and 2, it is necessary to stand up to four columns and portal posts, and a plurality of jack-up devices and boom / girder block hoists are distributed. Therefore, it is a large-scale construction, and it is difficult to adopt it for construction of indoor cranes.

  Then, an object of this invention is to provide the construction method and apparatus of the indoor crane which can be constructed in a space-saving and short period of time.

The construction method of an indoor crane according to the present invention for achieving such an object is as follows.
Prior to setting up or lowering an indoor crane with respect to an installation position in a building, a lifting device is temporarily installed on a beam member of the building, and the indoor crane is lifted or lowered by the lifting device. .

In order to achieve such an object, an indoor crane construction apparatus according to the present invention comprises:
A construction device for raising or lowering an indoor crane with respect to an installation position in a building, wherein a lifting device for raising or lowering the indoor crane is temporarily installed on a beam member of the building.

  The lifting device is characterized in that a plurality of wire clamp jacks are collectively installed on a frame installed on the beam member.

  A part of the plurality of wire clamp jacks is movable in the horizontal direction on the gantry.

  The lifting device is characterized in that the indoor crane is suspended or suspended via a swing hanger.

  According to the construction method and apparatus for an indoor crane according to the present invention, the indoor crane is elevated or suspended from the installation position in the building by a simple and inexpensive means of temporarily installing a lifting device in the center of the beam member of the building. Therefore, it can be constructed in a short time with a small space.

It is a side view of the construction apparatus of the indoor crane which shows one Example of this invention. It is also a front view. It is also a plan view. It is the principal part enlarged view similarly. It is explanatory drawing of a wrecker construction method. It is explanatory drawing of a winch construction method (building beam construction method). It is explanatory drawing of a jack-up (down) construction method.

  Hereinafter, an indoor crane construction method and apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a side view of an indoor crane construction apparatus showing an embodiment of the present invention, FIG. 2 is a front view of the same, FIG. 3 is a plan view of the same, and FIG.

  As shown in FIGS. 1 to 3, the building 10 has a ceiling steel frame (beam member) 12 installed between the front and rear and left and right columns 11 and supports a roof 13 above it. In addition, an overhead traveling rail 18 is laid in the front-rear direction on the upper ends of the left and right inner pillars 11 that are erected in a double manner, and a girder W as an indoor crane is placed on the overhead traveling rail 18 so as to be able to travel. It has become.

  A lifting device 14, which will be described later, is temporarily installed at a central portion in the left-right direction of the ceiling steel frame 12 via a mount 17 including an upper mount 17a and a lower mount 17b. The girder W is adapted to be overlaid or underlaid.

  As shown in FIG. 4, the lifting device 14 includes a plurality (four in the illustrated example) of wire clamp jacks 15a to 15d on the upper upper stage 17a of the rectangular shape, positioned at the four corners of the upper stage 17a. The lower ends of the four wires 16 a to 16 d that are installed in an integrated manner and are suspended from them are connected to the wire hooking portion 19 b of the swivel hanger 19.

  The wire clamp jacks 15a to 15d are provided with a pair of clamp and unclamp mechanisms, which are alternately operated to pull up the four wires 16a to 16d by a hydraulic jack like a so-called scale insect. It is a well-known thing to pull down.

  The swivel hanger 19 hangs a rope on one end of the girder W, and an operator pulls it from the ground (on the floor) in a required direction, so that the wire hanger 19b via a swivel mechanism built in the main body 19a. It is possible to turn between.

  In the present embodiment, of the four wire clamp jacks 15a to 15d, the two wire clamp jacks 15c and 15d on the rear side in the crane traveling direction can be paired to extend and contract on the lower stage base 17b in the front-rear direction. Along with the upper stage base 17a, it can move horizontally in the front-rear direction through the elongated hole 17c of the lower stage base 17b.

  That is, an indoor crane that does not need to be swiveled (the swivel hanger 19 is not used) at two points in the front-rear direction of the two front wire clamp jacks 15a and 15b and the two rear wire clamp jacks 15c and 15d. The traversing device such as a trolley can be mounted on or under.

  Since it is configured in this way, regardless of whether the building 10 is newly installed or existing, first, the lifting device 14 is temporarily installed on the ceiling steel frame 12 of the building 10 via the mount 17 in the construction of the overhead traveling crane.

  For example, when the girder W as an indoor crane is placed on the overhead traveling rail 18, the swivel hanger 19 is attached to the lower ends of the four wires 16 a to 16 d suspended from the wire clamp jacks 15 a to 15 d of the lifting device 14. In addition to being connected (see FIG. 4), the swivel hanger 19 is connected to a girder W (see the two-dot chain line in FIGS. 1 and 2) on the ground (on the floor).

  From this state, when the girder W is lifted above the overhead traveling rail 18 by the wire clamp jacks 15a to 15d (see the two-dot chain line in FIG. 1), the girder W is horizontally rotated 90 degrees by the method described above (FIGS. 1 and FIG. 1). (See solid line 2).

  Thereafter, the girder W may be suspended by the wire clamp jacks 15a to 15d and placed on the pair of left and right ceiling traveling rails 18. Obviously, when the girder W is suspended from the overhead traveling rail 18, the reverse operation of the above-described overhead motion may be performed.

In this way, according to the present embodiment, the lifting device 14 is temporarily installed in the central portion of the ceiling steel frame 12 of the building 10.
(1) Since the device is not arranged on the ground (on the floor), there is little influence on the ground facilities.
(2) The route for routing the wires 16a to 16d is simplified, and the reinforcing range of the building 10 can be limited as compared with the conventional one.
(3) The installation period of the elevating device 14 can be shortened, and the construction period can be shortened.
(4) Since the elevating device 14 can be installed in a space-saving manner, the roof 13 in the building 10 can be constructed without opening or with a minimum opening, so that rain curing in the building 10 can be minimized.
Various actions and effects such as these can be obtained, and construction costs can be reduced.

  Needless to say, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the scope of the present invention. For example, the number of wire clamp jacks can be changed, and the lifting device is not limited to a wire clamp jack, and a chain, a wheel, or the like may be used.

  The indoor crane construction method and apparatus according to the present invention are suitable for use in indoor cranes such as ladle cranes and overhead traveling cranes.

10 Building 11 Pillar 12 Ceiling steel frame (beam member)
DESCRIPTION OF SYMBOLS 13 Roof 14 Lifting device 15a-15d Wire clamp jack 16a-16d Wire 17 Mount 18 Overhead traveling rail 19 Swing hanger W Girder (indoor crane)

Claims (6)

  Prior to setting up or lowering an indoor crane with respect to an installation position in a building, a lifting device is temporarily installed on a beam member of the building, and the indoor crane is lifted or lowered by the lifting device. How to construct an indoor crane.   The construction method for an indoor crane according to claim 1, wherein the lifting device is capable of turning the indoor crane by a swinging suspender.   A construction apparatus for raising or lowering an indoor crane with respect to an installation position in a building, wherein a lifting device for raising or lowering the indoor crane is temporarily installed on a beam member of a building. Construction equipment.   The construction apparatus for an indoor crane according to claim 3, wherein the lifting device includes a plurality of wire clamp jacks collectively installed on a frame installed on the beam member.   5. The indoor crane construction apparatus according to claim 4, wherein some of the plurality of wire clamp jacks are movable in a horizontal direction on the gantry.   6. The indoor crane construction apparatus according to claim 3, 4 or 5, wherein the elevating device is capable of turning the indoor crane by a swing hanging tool.

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