JPH1122200A - Bearing replacement device of work elevating roof in multi-story building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify construction of a multi-story building while holding safety of a work elevating roof in the case an earthquake occurs and to provide a bearing replacement device of the work elevating roof in the multi-story building at a low cost. SOLUTION: A fixed arm 34 is mounted upward by a portion of one floor height from a movable arm 36 and is used for an upper arm, and the movable arm 36 is used as a lower arm. The fixed arm 34 is equipped with an arm main body 34b fixed to a truss column 12b through a clamp 34a provided at one end, the arm main body 34b is provided inward of a building 10 and, at the same time, it is constituted by projecting a bearing projection 34c to the lower side of the arm main body 34b. The movable arm 36 can be slid along the truss column 12b, and it is so constituted that it is equipped with a fixed base 36b fixing a rack 13 fixed to a truss column 12a with a rack pinion arm rising and falling device 36a in a movable manner, an arm main body 36c mounted on the fixed base 36b capable of being rotated in the horizontal direction and a jack 36d coming in and out from the lower side of the arm main body 36c.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of arranging a construction elevating roof above a multi-story building to be constructed or demolished, and raising or lowering the construction elevating roof as construction or demolishing progresses. The present invention relates to a device for relocating a support part of a lifting roof for construction of a multi-story building, which is relocated to a building.

[0002]

2. Description of the Related Art In recent years, when building middle and high-rise buildings,
There has been proposed an all-weather construction method in which a construction roof such as a stage is temporarily provided above a building to be built, and the construction roof is raised as the construction progresses. In this all-weather construction method, the construction part can be protected from rainwater by the construction roof, and a ceiling crane is installed on the construction roof to transport materials on the construction floor, thereby significantly improving the work efficiency of the construction. be able to. by the way,
Such a construction roof can be applied to the demolition work of middle and high-rise buildings. That is, a construction roof can be provided on the roof of a building to be dismantled, and the building can be dismantled sequentially from an upper floor to a lower floor below the construction roof. Even in this demolition work, it is necessary to move the roof for construction up and down as the construction progresses, and to change the roof in the same manner as in the construction work described above.

[0003] The replacement of the support portion of the elevating roof for construction is described in, for example, Japanese Patent Application Laid-Open No. 4-146345 (Int. Cl. E04B 1 /
35) or JP-A-5-133016 (Int. Cl. E04)
B 1/35) discloses the case of construction work. That is, the elevating roof for construction shown in JP-A-4-146345 is
As shown in FIG. 7, the construction elevating roof 1 is supported by a temporary support 3 arranged in correspondence with the column 2 a of the existing building 2, while a jack 4 is provided on the temporary support 3 and the jack 4 First and second gripping means 4a and 4b are provided on the upper and lower sides to grip the column 2a from the lateral direction and receive a reaction force.
When the roof for construction 1 is changed, the jack 4 is expanded and contracted and the first and second gripping means 4a and 4b alternately grip and release the pillar 2a. It has become.

[0004] Further, as shown in FIG. 8, a lifting frame for construction disclosed in Japanese Patent Application Laid-Open No. Hei 5-133016 has a reinforcing frame in which a lower end of a column 5 for supporting the lifting roof 1 for construction is arranged horizontally. The pillar 2 facing the outer wall of the building 2 via the piece 5a
a. That is, the pillar 2
The cylinder 6 and the piston rod claw 6a for mounting on the beam steel piece 2b incorporated in the frame a are provided on the reinforcing frame piece 5a and the cylinder body 7a of the cylinder 7a of the jack 7.
Respectively. From the reinforcing frame piece 5a to the rod 9
And the upper end thereof is connected to an intermediate portion of the column 5 so that the frame 8 is guided by the rod 9. When the roof for construction 1 is changed to the upper floor, the piston rod pawl 6a of the reinforcing frame piece 5a is removed from the beam steel piece 2b shown in the figure, and the jack 7 is shortened in this state to shorten the piston rod. Claw 6a is the beam steel piece 2 just above the floor
b. Next, the piston 7 is extended by removing the piston rod pawl 6a of the frame 8 from the illustrated beam steel piece 2b,
By locking the piston rod claw 6a to the beam steel frame piece 2b on the floor directly above, the construction elevating roof 1 can be repositioned upward by one floor.

[0005]

However, such a conventional apparatus for relocating a supporting portion of a rising and lowering roof for construction of a multi-story building is disclosed in Japanese Patent Application Laid-Open No. 4-146345. Is of a type that grips the pillars of the building from the lateral direction, it is necessary to provide a gripping force for transmitting the load of the roof to the pillars, and there is a drawback that the apparatus becomes large. In addition, there is also a problem that the position where the temporary support is to be arranged is strictly limited to the position of the column, and undesired stress is generated in the temporary support due to a construction error.

In Japanese Patent Application Laid-Open No. Hei 5-133016, the mounting portion of the temporary support to the multi-story building, that is, the piston rod claw 6a is simply placed on the beam of the building. Therefore, there was a drawback that they were uneasy about the earthquake during construction.

Further, since the member for raising and lowering the piston rod pawl 6a is the hydraulic jack 7, that is, the hydraulic jack, when a stroke of several meters is required,
There is also a problem that it is difficult to fine-tune the control.

[0008] In view of the above-mentioned problems, the present invention provides a construction for a multi-story building in which the structure of the elevating roof for construction is simplified while maintaining the safety in the event of an earthquake to reduce the cost. An object of the present invention is to provide a device for changing a supporting portion of a lifting roof.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, a supporting part changing device for a rising roof for construction of a multi-storey building according to the present invention is provided for a multi-storey building to be constructed or demolished. As it is arranged above, it is supported by the lower floor part via a temporary strut arranged at the periphery of the building, and as the construction or demolition work of the lower floor part progresses, it is relocated upward or downward In the lifting roof for construction of a multi-story building, an upper arm and a lower arm for supporting the temporary support on the lower floor portion are provided at upper and lower positions where a height difference of at least one floor height of the temporary support is provided, At least one of the upper and lower arms is provided with an arm elevating means for vertically changing a position fixed to the temporary support, and a tip of the arm is movable in and out of the multi-story building. And having a horizontally moving means, a hydraulic jack mounted downward on the tip of the arm.

According to a second aspect of the present invention, there is provided an apparatus for relocating a support portion of a constructional elevating roof for a multi-story building, wherein the arm elevating means includes a rack mounted along the temporary support, and meshes with the rack. And a pinion drive device that moves up and down.

Further, according to a third aspect of the present invention, there is provided an apparatus for rearranging a supporting portion of a constructional elevating roof for a multi-story building, wherein the horizontal moving means comprises a lower arm divided into a base portion and an arm portion. On the other hand, the arm portion is made rotatable.

According to a fourth aspect of the present invention, there is provided an apparatus for replacing a supporting portion of a lifting roof for construction of a multi-story building, wherein the maximum length of the hydraulic jack at the time of maximum extension is determined by the beam height of the multi-story building. It is characterized by being longer than the length obtained by subtracting.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIGS. 1 to 6 show an embodiment of a support section refilling apparatus for a rising roof for construction of a multi-story building according to the present invention. FIG. 1 is a front view of an initial multi-story building to be demolished, and FIG. Is a plan view of an initial multi-story building, FIG. 3 is an explanatory view showing a disassembly procedure of the multi-story building in order of (a) to (g), and FIG. FIG. 5 is an explanatory view showing a perspective view of FIG. 5B and a plan view of FIG. 5B, FIG. 5 is an explanatory view showing a movable arm for changing a temporary support column by a perspective view of FIG. FIG. 3 is a perspective view in which a main part of an arm is sectioned.

That is, the disassembly method of this embodiment is shown in FIGS.
As shown in FIG. 1, the present invention is applied to an RC or SRC multi-story multi-storey building 10 constructed as a middle or high-rise building. A curing frame 12 of a predetermined height covering the side surface of the slab is vertically provided, and a roof portion 16 including a roof slab 14 is separated, and the roof portion 16 is used as a construction elevating roof. On the other hand, the above-mentioned curing frame 12 is used as a temporary support, and the separated rooftop portion 16 is supported via the curing frame 12 so as to be replaceable with a lower floor portion 18. Here, lower floor part 1
Reference numeral 8 denotes an existing part located below the separated roof part 16. Further, the roof portion 16 may include the entire top floor.

On the roof of the multi-story building 10, a jib crane 20 is assembled and set.
Depending on the materials of the curing frame 12 or the multi-story building 1
0, dismantling machine such as breaker 22, crusher 24, and other materials and equipment necessary for dismantling;
Equipment is lifted. As shown in FIG. 2, the jib crane 20 can be moved along a rail 20a installed on the roof, and one jib crane 20 can cover the entire area of the roof. The roof slab 14 is formed with a relatively large opening 26 for carrying in the de-weighting machine, and is provided with a plurality of openings 28 for taking in outside air and a dust collector 30.

A truss beam 32 as a temporary beam whose both ends are connected to the curing frame 12 is temporarily provided below the existing beam 14a supporting the roof slab 14 of the roof portion 16, The roof portion 16 is placed and supported via the existing beam 14a. Here, the curing frame 12 includes a truss frame 12a configured to surround the outer periphery of the roof portion 16 and a plurality of truss columns 1 that are suspended from the truss frame 12a and function as temporary supports.
2b, and a soundproof panel 12c attached so as to cover the outside of the truss column 12b.
Are arranged in the vertical direction in FIG. 2 corresponding to the truss beams 32 respectively, and are arranged at appropriate intervals in the horizontal direction in FIG. Further, a fixed arm 34 and a movable arm 36 that are configured as a re-arrangement device are attached to the plurality of truss columns 12b. The fixed arm 34 and the movable arm 36 are adjacent to the truss column 12b. The fixed arm 34 is mounted one floor above the movable arm 36, and the fixed arm 34 is used as an upper arm and the movable arm 36 is used as a lower arm.

The fixed arm 34 is connected to the truss column 1 via a clamp 34a provided at one end as shown in FIG.
An arm body 34b fixed to the arm 2b is provided, the arm body 34b is arranged toward the inside of the building 10, and a support projection 34c is protruded below the arm body 34b. On the other hand, the movable arm 36 is slidable along the truss pillar 12b as shown in FIGS. 5 and 6, and moves up and down or stops the rack 13 fixed to the truss pillar 12a shown in FIG. A fixed base 36b movably fixed by a pinion-type arm elevating means 36a, an arm main body 36c attached to the fixed base 36b so as to be rotatable in a horizontal direction, and an elevating mechanism which is protruded and retracted from below the arm main body 36c And a jack 36d as a means.

As shown in FIG. 6, the fixing base 36b is formed to have a substantially U-shaped cross section so as to sandwich the truss pillar 12b from the building 10, and the outer periphery thereof is formed to have a circular cross section. A groove 36e such as a dovetail groove is formed on the upper surface and the lower surface along the circumferential direction, while the arm body 36c has a protrusion 36f engaged with the dovetail groove 36e.
The arm 36b is formed by projecting the protrusion 36f so as to be slidably fitted in the dovetail groove 36e. Can be rotated horizontally. The arm lifting / lowering means 36a and the turning means 36g constitute an arm lifting / lowering means 36a capable of vertically changing the position at which the movable arm 36 is fixed to the truss post 12b.

Next, the disassembly procedure of the multi-story building 10 will be described step by step with reference to FIGS.
First, a multi-story building 1 to be dismantled as shown in FIG.
The jib crane 20 is assembled and installed on the roof while disassembling the interior, the equipment piping, and the duct. Next, as shown in FIG.
2 is lifted from the ground and attached around the roof, and the outer wall of the portion where the fixed arm 34 and the movable arm 36 with jack are to be attached is dismantled. Then, as shown in FIG.
The fixed arm 34 and the movable arm 36 are attached to the slab, and the breaker 22 and the crushing machine 24 such as the crusher 24 are lifted by the jib crane 20 and carried into the building 10 through the opening 26 formed in the roof slab 14. And
The beams and floor slabs on the (R-1) floor, which is the floor directly below the roof, are dismantled by the above-mentioned dismantling machine. At this stage, (R-1)
Leave the pillars on the floor.

The fixed arm 34 includes an arm body 34b.
The floor slab of the (R-2) floor is extended by extending the support projection 34c formed of a short-stroke jack attached to the distal end of the floor slab extending from the outer wall obtained by disassembling the floor. Is pressed. Also,
Similarly, the movable arm 36 extends into the building through the disassembled outer wall portion, extends the jack 36d, and presses the floor slab of the (R-4) floor downward.
Preferably, the upper surface of the movable arm is brought into contact with the lower surface of the beam on the (R-3) th floor, and is pressed upward and fixed vertically. In this state, the curing frame 12 is fixed to the fixed arm 3.
4 and the movable arm 36 can be supported by the building 10.

Next, as shown in FIG.
The truss beam 32 is bridged between the truss pillars 12b of the curing frame 12 at the lower side of the truss beam 4a so that the roof portion 16 can be supported by the truss beam 32. And the above truss beam 3
After the completion of the installation of No. 2, the pillar on the (R-1) floor is dismantled. In this state, the roof portion 16 is completely separated from the building 10,
The roof portion 16 is supported by the truss beams 32, and the truss beams 32 are supported by the lower floor portion 18 via the truss columns 12 b of the curing frame 12, fixed arms 34, and movable arms 36. And like this, the roof part 16
Is supported by the lower floor portion 18, the floor slabs and beams on the (R-2) floor and the columns on the (R-3) floor are dismantled. In this manner, when the level of the (R-2) floor is completely dismantled, the fixed arm 3 supported on the floor slab of the (R-2) floor is completed.
4 is in a floating state, and the load of the curing frame 12 is
6 only.

After the level up to the (R-2) th floor is completely dismantled, the arm 12 is vertically moved by an arm elevating means such as a rack and pinion as shown in FIG. Then, the roof portion 16 is entirely lowered.

Then, as shown in FIG.
4 are placed on the floor slab of the (R-3) floor, and the curing frame 12 can be supported by these fixed arms 34.
Then, after the outer wall of the (R-5) floor is dismantled, the movable arm 36 is changed to the same floor. The rearrangement of the movable arm 36 is performed by releasing the support of the floor slab by the jack 36d, and then rotating the arm body 36c in the horizontal direction with respect to the fixed base 36b to the outside of the building 10 (for example, in FIG. 5B). A position indicated by a dashed line. In the figure, a member denoted by reference numeral 12d is a connecting beam attached to a lower end of the truss pillar 12b). Then, the fixed base 36b is lowered to the middle of the lower floor along the truss pillar 12b to lock the arm elevating means 36a, and then the arm main body 36c is rotated in the horizontal direction in the reverse direction and returned into the building 10.

After the arm body 36c is disposed in the building 10, the jack 36d is extended to store the load on the floor slab, the arm lifting / lowering means 36a is unlocked, and the jack 36d is further extended. After the upper end of 36 presses the lower surface of the (R-4) th floor beam, the arm lifting / lowering means 36a is locked. This operation is not performed for all movable arms at the same time, but is performed separately for every other two selected groups. In this way, damage can be minimized even if an earthquake occurs at the time of refilling.

In this manner, as shown in (f), when the rearrangement of the movable arm 36 is completed, the curing frame 12 is lowered by one layer from the state of (c), and from this state, ( As shown in g), the floor slabs and beams on the (R-3) floor and the columns on the (R-4) floor are dismantled.

In the same manner, the disassembly of the floor slab, beams and columns of the building 10 and the movement of the fixed arm 34 and the movable arm 36 to the lower floor of the curing frame 12 by rearrangement are repeated, and the building 10 is moved downward. We dismantle one floor at a time. When the lower floor portion 18 is dismantled and disassembled to the second floor above the ground, the curing frame 12 reaches the ground, so that the curing frame 12 does not descend further. Of the building 10, the curing frame 12, and the roof portion 16 can be dismantled.

In the present embodiment, the case in which the roof portion 16 used as the elevating roof for construction is rearranged downward has been disclosed in relation to the example of dismantling the building 10, but the present invention is not limited to this. In the case where the building 10 is to be constructed and the construction elevating roof is to be rearranged upward, the rearranging apparatus of the present embodiment is applied by operating the reverse of the downward rearrangement of the present embodiment. be able to.

[0028]

As described above, in the apparatus for changing the support of the lifting roof for construction of a multi-storey building according to the first aspect of the present invention, the temporary support for supporting the lifting roof for construction includes an upper arm. And a hydraulic jack mounted downwardly to the distal end of at least one of the upper and lower arms through the lower and upper arms via the lower arm. Load imbalance due to surface level construction errors (unevenness) can be prevented.

According to a second aspect of the present invention, there is provided an apparatus for relocating a supporting portion of a constructional elevating roof for a multi-story building, wherein the arm elevating means includes a rack attached along a temporary support.
Since the pinion drive device is a non-hydraulic type by being configured with a pinion drive device that meshes with this and moves up and down,
Control is easy even if the stroke extends over several meters.

Further, in the apparatus according to the third aspect of the present invention, the horizontal moving means has a lower arm divided into a base portion and an arm portion. Since the arm is pivotable with respect to the base, the hydraulic jack at the tip of the arm to be repositioned when the roof is moved up or down, that is, when the arm is repositioned, must be removed from the arm on the side of the temporary support column. And can be easily evacuated.

According to a fourth aspect of the present invention, there is provided an apparatus for replacing a supporting portion of a lifting roof for construction of a multi-story building, wherein the maximum length of the hydraulic jack at the time of maximum extension is the floor height of the multi-story building. When the hydraulic arm is extended into the building through the outer wall and the hydraulic jack is extended, the floor slab is pressed down and the upper surface of the hydraulic jack is It can be fixed by being pressed against the lower surface and stretched up and down. For this reason, safety against earthquakes during construction can be ensured.

[Brief description of the drawings]

FIG. 1 is a front view of an initial multi-story building starting demolition showing an embodiment of the present invention.

FIG. 2 is a plan view of an initial multi-story building beginning demolition, illustrating one embodiment of the present invention.

FIGS. 3A to 3G are explanatory diagrams sequentially showing a disassembly procedure of a multi-story building according to an embodiment of the present invention, in which FIGS.

FIG. 4 is an explanatory view showing one of the arm jacks used in the embodiment of the present invention by a perspective view of (a) and a plan view of (b).

FIG. 5 is an explanatory view showing the other arm jack used in one embodiment of the present invention by a perspective view of (a) and a plan view of (b).

FIG. 6 is a cross-sectional perspective view of a main part of the other arm jack showing one embodiment of the present invention.

FIG. 7 is a main part configuration diagram showing a first configuration of a conventional rearranging apparatus.

FIG. 8 is a main part configuration diagram showing a second configuration of a conventional rearranging device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Multi-story building 12 Curing frame 12b Truss pillar (temporary support) 14 Roof slab 16 Rooftop part (construction elevating roof) 18 Lower floor part 34 Fixed arm (upper arm) 36 Movable arm (lower arm) 36a Arm lifting means 36d jack (lifting means) 36g turning means

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Koichi Sabaniwa 2- 2-10 Isobe-dori, Chuo-ku, Kobe City, Hyogo Prefecture Inside Obayashi Corporation Kobe Branch (72) Inventor Kunio Kamata 1-1 Sumitani Otani, Hirakata City, Osaka Prefecture -1 Inside the Obayashi Corporation Osaka Machinery Factory (72) Inventor Yasunori Uemura 2-3-3 Kandaji-cho, Chiyoda-ku, Tokyo Tokyo Main Office (72) Inventor Tsuneori Harada 2, Kandaji-cho, Chiyoda-ku, Tokyo 3 chome Obayashi Gumi Tokyo headquarters (72) Inventor Tadashi Yoshida 2-1-2-10 Isobe-dori, Chuo-ku, Kobe-shi, Hyogo Inside Obayashi-gumi Kobe branch (72) Inventor Masaaki Sato, Chuo-ku, Kobe-shi, Hyogo 2-10 Isobe-dori Obayashi Corporation Kobe Branch

Claims (4)

[Claims] Claims: 1. A multi-story building to be constructed or demolished, which is supported by a lower-floor portion via a temporary support provided at a peripheral portion of the building, and the lower-floor portion is constructed or demolished. In the elevating roof for construction of a multi-story building, which is relocated upward or downward as the construction progresses, the temporary support is placed at an upper and lower position where a height difference of at least one floor of the temporary support is provided. An upper arm and a lower arm which are supported on the lower floor portion are provided, and at least one of the upper and lower arms is provided with an arm lifting / lowering means for vertically fixing a position fixed to the temporary support column, and a tip of the arm. For the construction of a multi-story building, comprising a horizontal moving means capable of moving into and out of the multi-story building, and a hydraulic jack mounted downward at the tip of the arm. Support portion Sheng sorting apparatus of descending roof. 2. The multi-story floor as claimed in claim 1, wherein said arm elevating means comprises a rack mounted along said temporary support, and a pinion driving device which meshes with said rack and moves up and down. Rebuilding equipment for the supporting part of the elevating roof for building construction. 3. The multi-layered structure according to claim 1, wherein said horizontal moving means has a structure in which a lower arm is divided into a base portion and an arm portion, and the arm portion is pivotable with respect to the base portion. A device for changing the support of a lift roof for the construction of multi-storey buildings. 4. The multi-story floor according to claim 1, wherein the length of the hydraulic jack at the maximum extension is greater than the height of the multi-story building minus the beam height. Rebuilding equipment for the supporting part of the elevating roof for building construction.