JP3225385B2 - Jacking device of the driving floor advance type construction method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a driving floor advance type construction method which secures an all-weather workplace environment and enables construction without work at a high place, and raises a driving floor along main columns. For a jack device used for:

[0002]

2. Description of the Related Art Conventionally, an all-weather driving floor advance-rise construction method (trademark is a roof push-up method) and its jack device are described in, for example, Japanese Patent Publication No. 50-2529 or Japanese Patent Publication No. 52-27446. It belongs to various publicly known. In addition, the applicant of the present application has filed application
Japanese Patent Application No. 0114 and Japanese Patent Application No. 5-5255 describe the invention of an improved jack device.

[0003]

Since the conventional jack device is configured to directly climb on the main pole, the vertical pitch of the main pole is equal to the jack stroke of the jack device (typically about 50 cm). It was necessary to weld or drill a slab to receive the reaction force. As a result, not only is the main pillar significantly damaged and its appearance is impaired, but also the number of processed pillars is enormous, leading to an increase in cost.

[0004] In addition, in the case of the all-weather driving floor precedent ascending construction method, the work space is a work space in the floor immediately below the drive floor, and the construction work is concentrated there. The presence or movement in the vertical direction is dangerous and often hinders construction work in the vicinity. Accordingly, it is an object of the present invention to significantly reduce the number of processed main pillars and to improve the configuration in which the jack device is exposed to a work place immediately below a drive floor and does not hinder the work.

[0005]

As a means for solving the above-mentioned problems of the prior art, a jack apparatus for a driving floor advance ascending construction method according to the first aspect of the present invention is characterized in that the main pillar has a driving floor. The driving floor, which is erected prior to the driving floor, and finally the driving floor, which is the top floor of the building, is raised first along the main pillars, and the building work is performed on the floor immediately below the driving floor. A jack body for raising and lowering the driving floor in the construction of the present invention, a jack body which rises and lowers along the main pillar, and a stroke column of a considerable length which is connected to the driving floor at the upper part and arranged along the main pillar And a jack system installed on the jack body to elevate and lower the stroke column, and means for temporarily fixing the stroke column to the main column, and the jack body is vertically arranged in the vertical direction of the main column. Lifting strike A reaction force receiver is provided at a large pitch equal to the stroke, and a reaction force receiver is provided at a small pitch equal to the vertical stroke of the jack system in the vertical direction of the stroke column. Contact the reaction force received in the reaction force door Ru latching means are provided
When a reaction force is applied to the main pillar by the locking means.
Of the stroke columns by the jack system
When the stroke column reaches the limit of the rising stroke,
At the stage where the stopping means has taken a reaction force to the main pillar, the jack body
The latching means is retracted from the reaction force receiver, and the jack
Stem moves jack body along stroke column
To the next higher level of the reaction force, and
Repeat the process of taking the reaction force to the reaction
It is characterized in that a precedence climb is performed .

According to a second aspect of the present invention, there is provided a jack device of a driving floor advance type construction method, in which a main pillar is erected before a driving floor, and a driving floor which finally becomes the top floor of the building is provided. A jack device for raising the driving floor in the construction of the driving floor advance climbing construction method in which the building work is performed on the floor immediately below the driving floor, the driving device being raised along the main column, and along the main column. The jack body to be raised and lowered, the upper part is the driving floor, and the lower part is connected to the next lower floor, and a stroke column of a considerable length arranged along the main pillar, and the stroke column installed on the jack body and raised and lowered And a means for temporarily fixing the stroke column to the main column, and a reaction force receiver is provided in a vertical direction of the main column at a large pitch equal to the lifting stroke of the jack body. ,Previous The vertical stroke posts provided receiving the reaction force at a small pitch equal to the lift stroke of the jack system, said jack body, the reaction force received by the Ru preparative reaction force latching means of the present設柱is provided Have been
When a reaction force is applied to the main pillar by the locking means.
Of the stroke columns by the jack system
When the stroke column reaches the limit of the rising stroke,
At the stage where the stopping means has taken a reaction force to the main pillar, the jack body
The latching means is retracted from the reaction force receiver, and the jack
Stem moves jack body along stroke column
To the next higher level of the reaction force, and
Repeat the process of taking the reaction force to the reaction
It is characterized in that a precedence climb is performed .

[0007]

When the jack system 10 of the jack body 2 is actuated in a state where the latching means 8 of the jack body 2 is actuated and a reaction force is applied to the reaction force receiver 6 of the column 1, the stroke column 3 is moved to the reaction force receiver 7 It can be moved up and down with a stroke for each pitch, and together with the stroke pillar 3, the driving floor 5 (and the next lower floor 1)
Raise and lower 1).

Next, the stroke column 3 is temporarily fixed to the column 1 by the temporary fixing unit 4, and then the jack unit 2 is released from the reaction force receiving unit 6 of the jack body 2 while the jack unit 2 is released. When the jack system 10 of the main body 2 is operated, the jack main body 2 can be moved up and down along the stroke column 3. By taking a reaction force on the reaction force receiver 6 on the next higher rank of the pillar 1 by the latching means 8 of the jack body 2, the jack body 2
Is changed. The changing stroke of the jack body 2 can be set to an arbitrary size within the limit of the effective length of the stroke column 3, and is provided at the same pitch by setting the changing stroke sufficiently large. The number of processing of the reaction force receiver 6 of the column 1 can be greatly reduced.

When the upper portion of the stroke column 3 is connected to the driving floor 5 and the lower floor 11 is connected to the lower portion as in the second invention to form a two-layer roof frame, the upper and lower ends of the stroke column 3 are provided. Is fixed, the stability at the time of the lifting operation by the jack system 10 is enhanced. On the other hand, since the jack device is installed in the form of a sandwich in a two-layered roof frame, the space above the floor immediately below the next lower floor 11 becomes a main construction work place, and the jack work device is installed in this construction work place. Is not exposed at all, so it does not hinder the progress of construction work at all.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
First, FIG. 1 shows a conceptual diagram of a stage in which building construction has proceeded to the Nth floor by a driving floor advance ascending construction method to which the jack device of the present invention is applied. Finally, using the universal crane 12 installed on the driving floor 5 which is the top floor of the building, the main pillar 1 is built before the driving floor 1. The driving floor 5 is connected to the next lower floor 11 via the stroke column 3 of the jack device, and the space on the N floor immediately below the double-layered roof frame is a construction work place in an all-weather environment. On the main floor 13 of the floor, an (N + 1) th floor 14 is assembled as a so-called non-scaffolding work without elevation work. A slide crane 15 is installed on the ceiling portion of the next lower floor 11 described above, and the assembling of the (N + 1) th floor 14 and other construction work are proceeding using the slide crane 15. N + 1 constructed on the N floor main floor 13
The floor 14 is hung below the next lower floor 11 by means of a hanger 16 made of steel or the like, so that the (N + 1) th floor 14 is raised together with the step of raising the driving floor 5.

In the above-mentioned driving floor advance-rise type construction method, the detailed configuration of the jack device for raising the driving floor 5 along the main pillar 1 built on the ground is specifically shown in FIGS. . This is two parallel to both sides along the main pillar 1.
This model uses three stroke columns 3 and 3 (however,
As shown in FIG. 1, only one stroke column 3 functions satisfactorily. ). In any case, a jack body 2 which takes a reaction force on the main pillar 1 and moves up and down along the main pillar, and two jacks of a considerable length which are raised and lowered by a jack system 10 installed on the jack body 2. Stroke columns 3 and 3 and means 4 (see FIGS. 6 and 7) for temporarily fixing the stroke columns 3 to the main columns 1 and taking a reaction force for re-arrangement. And the upper part of the stroke column 3 is the driving floor 5
And the lower part is connected to the next lower floor 11.

The main pillar 1 is built up before the ascending of the driving floor 5 by adding a unit column of unit length of a square steel pipe processed at a factory by a crane 12 installed on the driving floor. The main column 1 is provided with reaction force receivers 6 formed by drilling square holes at a pitch equal to the refill stroke of the jack body 2, for example, at a large interval of about 4 m in the vertical direction. However, the reaction force receiver 6 may be provided as a convex portion by welding a steel slab. In any case, the reaction force receivers 6 of the main pillar 1 are provided at intervals about 10 times as large as the lifting stroke (about 50 cm) of the jack system 10, and therefore, 1 / That is, the processing quantity of 10 or less is sufficient. On the other hand, the stroke column 3 is also a square steel pipe, and its total length is about 9 m, assuming the floor height of the two-layer roof frame, and the vertically moving upper and lower strokes of the jack system 10 (approximately 9 m). The reaction force receiver 7 is provided at a pitch equal to 50 cm) by drilling a round hole. Therefore, although the processing amount of the stroke column 3 is apparently large, the stroke column 3 is diverted as a component of the jack device, so that the processing amount is not a problem.

As shown in FIG. 3, the jack main body 2 is a rectangular hole having a similar cross-section slightly larger than each of the columns, passing through the main column 1 and the two stroke columns 3, 3, respectively. The direction guide portions 17 and 18 are configured as a rigid frame by welding and assembling steel plates. And, on the outer surface of the guide portion 17 of the main pillar 1 located at the center, the main pillar 1 is provided.
There is provided a latching means 8 which can enter the reaction force receiver 6 to take the reaction force or retract and release the reaction force. As shown in FIG. 3, the specific configuration of the latching means 8 shown in FIG. 3 is such that a cannula 8 b that advances and retreats in a cylindrical portion 8 a fixed vertically inward with respect to the guide portion 17 is driven by a cylinder 8 c. It has become so. In addition, installed on the outer surface on the opposite side of the guide portion 17 is a constraint guide mechanism 19 for coping with a change in the cross-sectional shape of the main pillar 1. This consists of a contact portion 19b advanced and retracted by a cylinder 19a. As shown by a dotted line in FIG. 3 or FIG. Extruded,
This ensures that the latch 8b of the latching means 8 in particular is hooked against the reaction force receiver 6 to take the reaction force.

Next, on the outer surface of the guide portion 18 of the stroke column 3, a pair of jack systems 10 are provided in a symmetric arrangement. As shown in FIG. 5, a detailed structure of the jack system 10 is such that an elevating cylinder 20 is vertically fixed to the lower side of the jack body 2, and the tip of a piston rod 20 of the elevating cylinder 20 is the stroke column. The reaction force (or supporting force) by entering the reaction force receiver 7 of 3
It is connected to an elevating and lowering latch mechanism 9 which can take out or retreat to release the reaction force. The effective stroke of the lifting cylinder 20 is about 50 cm. The elevating and lowering latch mechanism 9 includes a cylinder 9 b which is guided in the vertically parallel slit-shaped opening 21 formed in the jack body 2 by both side edges of the opening 21 and moves up and down.
This is a configuration provided with a cannon 9c that is driven and moved forward and backward. In addition, a latch mechanism 9 ′ for changing the arrangement that complements the operation of the jack system 10 is provided on the jack body 2.
Is installed above the lifting and lowering mechanism 9 at an interval equivalent to a vertical stroke (FIG. 2).
Although the details of the structure of the latch mechanism 9 'for refilling are not shown in the drawings, except that the position is fixed to the jack body 2, the cylinder is the same as the lifting mechanism 9 for lifting and lowering. Is configured to move forward and backward.

Next, the operation of the jack system 10 will be described. First, the hooking means 8 of the jack main body 2 is driven to cause the cannula 8b to enter the reaction force receiver 6 of the main pillar 1 to take a reaction force. In this state, the elevating and lowering latch mechanism 9 is lowered to the lower limit position by the elevating and lowering cylinder 20 of the jack system 10, and the cylinder 9b is driven at that position to allow the canker 9c to enter the reaction force receiver 7 of the stroke column 3 and to be supported. . After that, the cannus of the upper re-arrangement locking mechanism 9 'are retracted from the reaction force receiver, and the support is re-arranged. Then, the ascending / descending cylinder 20 is moved up, and at the stage when its effective stroke (about 50 cm) has risen, the cylinder of the re-arranging latching mechanism 9 'is driven to cause the cannus to enter the reaction force receiver 7 at the corresponding position. Change the support of the stroke column. In the same manner, by repeating the raising / lowering operation of the lifting / lowering cylinder 20 and the changing operation of the two types of latch mechanisms 9 and 9 ′,
With the jack main body 2 fixed to the main column 1 by taking a reaction force as a base, a step of raising (or lowering) the stroke column 3 is performed.

On the other hand, the lifting process of the jack body 2 is shown in FIG.
Alternatively, the procedure is started by temporarily fixing the stroke pillar 3 to the main pillar 1 by the temporary fastening means 4 shown in FIG. After that, the cannula 8b of the latching means 8 of the jack body 2 is retracted from the reaction force receiver 6, and then the jack system 10 and the latch mechanism 9 'for refilling are repeatedly operated in exactly the same manner as described above. Then, the jack body 2 rises (or descends) by applying a reaction force to the stroke column 3. When the jack main body 2 reaches the position of the next higher-order reaction force receiver 6 on the main pillar 1, the cannula 8 b of the latching means 8 enters the reaction force receiver 6, and the ascending process is performed at the stage where the reaction force is taken. Is settled.

Based on the above, the construction of the drive floor advance-rise building method and the related operation of the jack device will be described with reference to FIGS. FIG. 6A shows a stage in which the jack body 2 has risen to a position immediately below the driving floor 5 and has taken a reaction force on the reaction force receiver 6 of the main pillar 1. At this time, on the N floor 13 immediately below the next lower floor 11, a gantry 22 is laid and the next upper floor (N +
The first upper floor 14 is assembled, and the next upper floor 14 is hung below the next lower floor 11 by a hanger 16.

FIG. 6B shows a state in which the jack system 2 installed on the jack body 2 acting on the reaction force receiver 6 of the main column 1 as a base operates the ascending process of the stroke column 3. In particular, the figure shows a stage in which the N + 1 floor 14 has been half-upped to a height suitable for performing the installation work on the ceiling portion by the worker standing on the N floor 13.

FIG. 7A shows a stage in which the ascending step of the stroke column 3 further proceeds and the next upper floor 14 reaches the position of the (N + 1) th floor. FIG. 7B shows that the permanent fixing to the main pillar 1 on the (N + 1) th floor 14 is completed, the lifting device is released, and the driving floor 1 and the next lower floor 11 rise to the height corresponding to the beam (about 1 m). Shows the final stage of the process. At this stage,
The temporary fixing means 4 previously installed on the driving floor 5 is actuated to take the support reaction force of the stroke columns 3 (accordingly, the driving floor 5 and the next lower floor 11) to the main column 1. After a while, jack body 2
The hooking means 8 is provided with a kanuki 8b for receiving the reaction force 6
And relocate the support. Then, by operating the jack system 10 of the jack main body 2, the jack main body 2 is raised along the stroke pillar 3 to the position of the next higher-order reaction force receiver 6, and the stage of FIG. 7C is reached.
At this stage, the N + 2 floor 23 is assembled on the N + 1 floor 14 which has been permanently fixed.

FIG. 7C is equivalent to the state of FIG. 6A. Hereinafter, the same steps are repeated to operate the jack device, and the construction of the drive floor advance ascending construction method is advanced.

[0021]

According to the jack device of the present invention, the processing quantity of the reaction force receiver 6 of the column 1 is greatly reduced to 1/10 or less, the degree of damage to the column is reduced, and the processing cost is reduced. Is done. In addition, this jack device can implement the roof frame with a two-layer structure of the driving floor 5 and the next lower floor 11 that are connected to the top and bottom of the stroke column 3, and as a result, the building directly below the roof frame can be constructed. The jack device is not exposed to the work concentration space, and the inconvenience that the jack device hinders the construction work can be solved.

[Brief description of the drawings]

FIG. 1 is an elevational view showing an outline of the construction of a driving floor advance type construction method to which a jack device according to the present invention is applied, with respect to main parts.

FIG. 2 is a front view of the jack device.

FIG. 3 is a sectional view taken on line AA of FIG. 2;

FIG. 4 is a sectional view taken along the line BB of FIG. 2;

FIG. 5 is a sectional view taken along the line CC of FIG. 2;

FIGS. 6A and 6B are elevation views showing the progress of construction of the driving floor advance-rise building method and the movement of the jack device.

FIGS. 7A to 7C are elevation views showing the progress of construction of the driving floor advance-rise building method and the movement of the jack device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 pillar 2 jack main body 10 jack system 3 stroke pillar 4 temporary fixing means 5 driving floor 6 reaction force receiving 7 reaction force receiving 8 hanging means 11 next lower floor

Continued on the front page (72) Inventor Takumi Fujii 2-5-1-14 Minamisuna, Koto-ku, Tokyo Inside Takenaka Corporation Technical Research Institute (58) Fields investigated (Int. Cl. ⁷ , DB name) E04G 21/16

Claims (2)

(57) [Claims] 1. A main pillar is erected prior to a driving floor, and a driving floor, which is finally the top floor of the building, is precedently raised along the main pillar, and is constructed on a floor immediately below the driving floor. A jack device for raising a driving floor in the construction of a driving floor advance ascending type construction method in which work is performed, a jack main body that moves up and down along the main pillar, and an upper part is coupled with the driving floor, and along a main pillar, A stroke column of a considerable length arranged in a position, a jack system installed on the jack body to lift and lower the stroke column, and means for temporarily fixing the stroke column to the permanent column, A reaction force receiver is provided at a large pitch equal to the vertical stroke of the jack body in the vertical direction of the main pillar, and a small pitch equal to the vertical stroke of the jack system in the vertical direction of the stroke column. Reaction force receiving is provided on the jack body, the of the present設柱and reaction force receiving <br/> a reaction force to preparative Ru latching means is provided, contrary to the設柱by said latching means At the stage where you take your strength
Stroke columns are changed by jack system
And the stroke column reaches the limit of the ascent stroke and is temporarily stopped.
Of the jack body at the stage when the
The latching means is retracted from the reaction force receiving, and
The jack body is moved along the stroke pillar by the function of the tem.
Raise it to the next higher level of reaction force receiving, and re-install the locking means
Repeat the process of taking the reaction force to the column
A jacking device for a driving floor advance type construction method, characterized in that a row ascending is performed . 2. The main pillar is erected prior to the driving floor, and the driving floor, which is finally the top floor of the building, is raised along the main pillar and the building is constructed on the floor immediately below the driving floor. A jack device that raises the driving floor in the construction of the driving floor advance type construction method in which work is performed, a jack body that moves up and down along the main pillar, an upper part is a driving floor, and a lower part is connected to the next lower floor. And a stroke column of a considerable length disposed along the main column, a jack system installed on the jack body to lift and lower the stroke column, and temporarily fixing the stroke column to the main column. A reaction force receiver is provided in the vertical direction of the main column at a large pitch equal to the vertical stroke of the jack body, and the vertical direction of the stroke column is equal to the vertical stroke of the jack system. The reaction force received by the small pitch are provided have, on the jack body is the reaction force receiver <br/> preparative Ru latching means a reaction force to the present設柱is provided, this by the latching means When a reaction force is applied to the pillar,
Stroke columns are changed by jack system
And the stroke column reaches the limit of the ascent stroke and is temporarily stopped.
Of the jack body at the stage when the
The latching means is retracted from the reaction force receiving, and
The jack body is moved along the stroke pillar by the function of the tem.
Raise it to the next higher level of reaction force receiving, and re-install the locking means
Repeat the process of taking the reaction force to the column
A jacking device for a driving floor advance type construction method, characterized in that a row ascending is performed .