JP2781671B2 - Building erection method and building elevating device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for erection of a building and an elevating device for erection of a building.

[0002]

2. Description of the Related Art In the construction of a high-rise building, members are conventionally carried from the ground to a building floor by using a climbing crane or an elevator, and are constructed by a stacking method. Further, in order to construct a building without being affected by the weather, a method has been proposed in which a member is inserted below the top floor of a building to be constructed while being pushed up by a hydraulic jack (Japanese Patent Laid-Open No. 2-70844).

[0003]

In each of the above-mentioned conventional methods, the members are transported from the ground to the building floor in units of members, and the members are transported and assembled. Therefore, much time is required for transporting and joining the members, and the construction period is long. However, there is a problem that it is difficult to shorten the construction period. In addition, when performing construction work while pushing up the roof floor with hydraulic jacks, the work of transporting members on the building floor interferes with equipment such as the roof floor structure and hydraulic jacks, complicating the procedure and reducing efficiency There is a problem such as letting.

SUMMARY OF THE INVENTION The present invention provides a method for transporting and building a large building frame without interfering with the erection structure and machinery on the building floor of the building, and for this purpose a jack-up for a large-head safe erection structure. It is intended to obtain a lifting device for use.

[0005]

In order to achieve this object, according to the present invention, the elevating device is constructed by setting the top floor of a building to be constructed as an erecting structure, and using the erecting structure as a fulcrum of a core portion of the building. A rooftop crane that moves on the roof of the erection structure and moves on the core of the building, and a ceiling crane under the beam that moves on the periphery of the building. The core part and the peripheral part of the building are built in parallel by a crane, and the step of jacking up the erection structure by the elevating device is repeated with the built core part as a fulcrum.

A jack guide for detachably suspending and mounting the elevating device on a core of a building, a jack fixed to an erecting structure on the top floor of the building, and a jack for elevating the jack guide, And second means for supporting the erection structure.

[0007]

The lifting device can jack up the erection structure on the top floor of the building by the height of two floors at a time by setting the length of the jack guide to, for example, the height of the second floor. The rooftop crane and the under-beam overhead crane suspend the building frame for the second floor in a state where the erection structure on the top floor of the building is jacked up, without any interference with the building top floor structure, elevating equipment, etc. Building building blocks can be loaded onto the core and peripheral areas, and construction work is performed. When the core for the height of the second floor is completed, the provisional pillar (second support means) is provided between the upper end of the main pillar of the core and the facing portion of the construction structure on the uppermost floor above. Is inserted, and the jack is slightly lowered to support the construction structure sitting amount on the top floor on the temporary pillar via the temporary pillar (second support means), and the jack is continuously lowered in this state. Raise the jack guide, suspend it on the core beam above the second floor, and change it. Raise the jack on the jack guide that has been replaced, remove the temporary column (second support means), and then return to step 2.
Jack up the top floor of the building for the floor height.

[0008]

1 and 2, 1 is a building to be constructed,
2 is the core of the building, 3 is the periphery of the building, 4 is the construction structure for the top floor of the building used for construction, 5 is between the core 2 of the building and the construction structure 4 for the top floor. Several places (6 or 8
6) a jack-up elevating / lowering device, 6 is a rooftop overhead crane that is temporarily installed on the rooftop of the erection structure 4 so as to move on the core part 2, and 7 is a beam below the erection structure 4 and around the building. A plurality of under-beam overhead cranes 8 and 9 temporarily provided to move on the section 3 are rails for the overhead cranes 6 and 7, respectively.

The under-beam overhead crane 7 has a structure in which two lifting trolleys 7a which can be transferred to each other on two overhead traveling girder sides on both sides of a building sandwiching a core portion and two on the side are used. The lower overhead crane 7 builds a block (dotted line) on the peripheral portion 3 in cooperation with the overhead crane girder on the lifting side of the building block from the ground at the overhang. Similarly, the rooftop crane 6 lifts the skeleton block from the ground at the overhanging portion of the rooftop rail 8 and builds the block (dotted line) on the core 2.

FIGS. 3 to 5 show details of an embodiment of the lifting / lowering device 5. FIG. The lifting device 5 is, as shown in FIG.
A jack guide 10 having an effective length corresponding to the height of the second floor to be suspended and mounted on the main beam 2a, and fixed to the uppermost erection structure 4 so as to be detachably coupled to the jack guide 10 and ascend and descend. And a second support means 12 for supporting the erection structure on the top floor of the building on the core portion 2 separately from the jack 11. The second support means 12 includes a temporary pillar 13 provided vertically between the main pillar 2b and the roof beam 4.

4 and 5 show specific examples of the jack guide 10 and the jack 11 part. The jack guide 10 faces the core 2 side with the groove side of the long die machine having a U-shaped cross section as a back,
The pair of swinging arms 14, 14 extending or descending at the top by a hydraulic cylinder 14 a is operated in a horizontally extended posture, and is mounted on the main beam 2 a by a saddle portion 14 b on the lower surface of the arm, and contacts the upper and lower main beams 2 a. And attach it.
The swing arm 14 has its upper surface in contact with the lower surface of the upper end thick plate 10a of the jack guide 10, receives the load applied to the jack guide 10, and supports it on the main beam 2a. Jack guide 10
The two parallel face plates are provided with pin holes 15 having a constant pitch over the entire length excluding the vicinity of the upper end. Jack 11
Is a column-shaped overhang 4b on the side of the construction structure 4 on the top floor, which is loosely fitted into the groove of the jack guide 10 so as to be vertically movable.
The lower pin block 18 is fixedly mounted on the lower surface and includes a two-stage upper pin block 16 fixed to the lower surface of the overhang portion 4b and a lower hydraulic block 17 connected by a vertical hydraulic cylinder 17. The jack 11 is vertically movable in the groove of the jack guide 10, and the pin of the lower pin block 18 is connected to the pin hole 15 of the jack guide 10, and the hydraulic cylinder 17 is extended and driven, thereby forming the top floor construction structure. The body 4 is pushed up, the lower pin block 16 on the upper side is pin-connected to the pin hole 15 on the upper level, the hydraulic cylinder 17 is contracted, and the lower pin block 1
The operation of connecting the pin 8 to the pin hole 15 on the upper stage is repeated, and the erection structure 4 on the uppermost floor is jacked up to the core portion 2 by the height of the second floor. By repetition of the reverse operation, the erection structure 4 on the top floor is lowered or the jack guide 10 is lowered.
Can be changed to a height raised by the height of the second floor.

FIGS. 3A to 3D show the process of jack-up construction. (A) The figure shows the core part 2 and the peripheral part 3 indicated by dotted lines by the roof overhead crane 6 and the under-beam overhead crane 7 at the height where the construction structure 4 on the top floor is jacked up to the top of the jack guide 10. It is in a built state. (A) The figure shows the state in which the construction structure 4 on the top floor is supported via the second support means 12 on the core part 2 built in the manner of (A), that is, the lower surface of the roof beam 4a and the upper end of the main pillar 2b. The temporary column 13 is inserted between the temporary column 13 and the entire load on the erection structure 4 on the top floor is supported on the permanent column 2b of the core unit 2 via the temporary column 13. That is, in FIG. 3A, the load on the top structure 4 for the erection is transmitted through the jack guide 10 to the main beam 2a of the core portion 2.
Supported above. (B) Referring to the figure, the temporary pillar 13 is placed on the main pillar 2b from the side by the crane 6, and the construction structure 4 on the top floor is slightly lowered by the operation of the jack 11, and the upper pin block 16 is inserted into the pin hole 15. When the pins are connected to each other with the upper pin block, the load on the erection structure 4 on the top floor is changed from the support via the jack guide 10 to the second support means 12, ie, the temporary column 1
Change to support via 3. When the jack 11 is lowered with respect to the jack guide 10 in this state, the construction structure 4 on the top floor cannot be lowered and the jack guide 10 starts to rise. At a slightly elevated height, the swing arm 14 at the top of the jack guide 10 is lowered to the position indicated by the broken line to avoid the collision with the upper permanent beam 2a, and as shown in FIG. The swing arm 14 is seated on the upper side. Next, when the hydraulic cylinder 17 is extended and switched from the upper connection to the lower connection of the upper pin block 16 of the jack 11, the erection structure 4 on the top floor rises slightly and the support is shifted from the support via the temporary column 13 to the support via the jack guide 10. . Second support means 12
That is, the temporary column 13 is removed, and the construction structure 4 on the top floor is jacked up by two floors above the jack guide 10 by operating the jack 11 as shown in FIG. The construction of the core part 2 and the peripheral part 3 indicated by the dotted line corresponding to the height of the second floor is repeated in 6,7. Guide rollers (not shown) are provided at upper and lower positions on the uppermost floor side of the erection structure 4 on the upper surface of the erection structure 4 and the core column 2 opposite to the main column 2b, and contact the outer surface of the main column 2b. The core portion 2 receives the horizontal force generated on the uppermost floor portion. In addition, the jack guide 1 of the lifting device 5 described above.
The individual components such as 0, the jack 11, the second support means 12, and the swing arm 14 are not limited to the illustrated ones, but may be any other types.

[0013]

Since the present invention is configured as described above, it has the following effects. The jacking up / down device of the construction structure on the top floor is connected to the jack guide (rail) and the guide, so that the jacking guide can be extended to secure a larger jackup amount by increasing the length of the jack guide. Block transportation and building can be performed in minutes. At the same time, overhead cranes are temporarily used under the roof and under the beam of the erection structure on the top floor for co-building around the core, so that the transfer capacity can be increased and block transfer can be built in units of large blocks such as 50 t blocks. As a result, it is possible to greatly reduce the transport time and the installation work time at the building construction site and shorten the construction period.

For the same reason, crossing and interference between the blocks to be transported on the building floor and the erection structure and machines are almost eliminated, so that the transport and installation work at high places can be performed safely and efficiently in an orderly and efficient manner. Become. Since the construction structure on the top floor is switched to the jack support on the core portion and the second support means support, there is an effect that the transfer to the upper portion of the jack guide can be performed smoothly and efficiently.

[Brief description of the drawings]

FIG. 1 is an overall front view of a building under construction according to a first embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is an explanatory view showing the configuration and operation of the lifting device in FIG. 1 in the order of steps.

FIG. 4 is an enlarged detail view showing a part of FIG. 3;

FIG. 5 is a side view taken along the line VV in FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Building 2 Core part 3 Peripheral part 4 Construction structure 5 Elevating device 6 Roof ceiling crane 7 Beam overhead crane 10 Jack guide 11 Jack 12 Second support means

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-2-70844 (JP, A) JP-A-4-155506 (JP, A) JP-A-4-213642 (JP, A) JP-A-4- 131447 (JP, A) (58) Field surveyed (Int. Cl. ⁶ , DB name) E04G 21/14 E04G 21/16

Claims (2)

(57) [Claims] 1. An erecting structure is provided at the top floor of a building to be constructed, and the erecting structure is supported on a building core portion as a fulcrum via an elevating device so as to be able to ascend and descend. A roof overhead crane that moves on the core and a roof overhead crane that moves on the periphery of the building are temporarily installed, and the roof and overhead crane above the roof are used to build the core and the periphery of the building in parallel. And a method of erection of a building in which the step of jacking up the erection structure by the elevating device is repeated with the core part built as a fulcrum. 2. A jack guide removably suspended and mounted on a core of a building, a jack fixed to an erection structure on a top floor of the building, and a jack guide for raising and lowering the jack guide, and a top floor of the building on the core. And a second support means for supporting the erection structure.