JPH08239906A - Construction of building - Google Patents

Abstract

PURPOSE: To make a lift-up method applicable to a mid-to-high-rise building with efficiency improved, reducing term of works and costs for building by a method wherein fabrication works for slab structural bodies, roof panels, external wallings, etc., are executed on the ground without requiring works at elevated spots. CONSTITUTION: Core columns A are oppositely erected beforehand at a construction site, and lift-up jacks 2, capable of hoisting and lowering lift-up rods, are installed on each of extension parts 1 of the core columns A. Then, slab structural bodies C and roof panels B are fabricated on the ground between the core columns A, starting from the undermost story and heading for the upper stories, or starting from the upper story and heading for the lower stories. Openings are covered with external wallings D. Then, slab structural bodies C and the roof panels B are lifted up by the lift-up jacks 2 for a height equivalent to one story, and the slab structural bodies C and the roof panels B for the undermost story are additionally installed to specified positions, and the external wallings D are installed to the openings opened after the lift-up. By repeating works for lifting up in the height for one story and fitting the external wallings, the slab structural bodies C and the roof panels B are installed successively from the lower stories to the upper stories between the core columns A.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction method for a building in which slab structures and roof slabs on each floor assembled on the ground are lifted up and installed in order from the lower floor to the upper floor.

[0002]

2. Description of the Related Art Recently, various automatic construction techniques for buildings have been developed. This is called an all-weather construction method. A roof is laid on the entire surface of the top floor building, and the top floor portion is raised in advance, and in the rain below it. It is known to perform construction even if there is, and to construct a building with a robot. For most of these, hoisting machines such as hoists and cranes are installed on the large beams installed on the top floor, and the hoisting machines are used to lift construction materials such as columns and beams downstairs while proceeding with the construction. It is a thing.

On the other hand, conventionally, the slabs constituting the floor surface of the multi-story floor are assembled on the ground and stacked from the lower floor portion to the upper floor portion, which are sequentially lifted up from the lower floor portion and installed at predetermined positions. There are technologies, for example, the following construction methods.

Japanese Patent Publication No. 54-28005 "Jack self-feeding lift-up method" A unit slab in which a part of a pillar, a beam, and a slab are integrated by using a jack that can self-elevate along a pillar that is sequentially added. A construction method in which the structure is pushed up by the jack and the pillar of the intermediate portion is inserted under the unit slab structure.

Japanese Patent Publication No. S51-773 “Construction Method for Buildings” A pillar is erected at a predetermined position in advance, and a lower floor wall panel, an upper floor slab, and an upper floor are arranged in order from the bottom on the ground between the pillars. The wall panel and roof slab are integrally layered, and the multi-layer body is hoisted using the pillars by the hoisting and winding device, such as a winch, installed on the uppermost roof slab, and the lower floor wall panel is first erected. A construction method in which the upper floor slab is installed on the lever and then the upper part is constructed in the same way.

Japanese Patent Publication No. 53-23131 “Method of constructing multi-layer building and lifting device used therefor” A plurality of pairs of lift columns are erected on the base floor so as to face each other, and the lift columns are used as a guide to move up and down. A lift means with a lift bar is provided on a possible beam, and wall materials and slab floors are laminated by the number of floors, and the laminated body is hoisted in stages by the lift means. Construction method to build.

[0007]

However, in the above-mentioned conventional all-weather construction method, since the construction work is performed under the gradually rising top floor portion, the construction work is often performed at high places. , Transportation of materials and movement of workers,
The construction work was by no means good in efficiency.

Further, the above-mentioned conventional lift-up construction method is intended for low-rise buildings, and when it is applied to middle-high rise buildings, in the construction method, it is necessary to insert the middle pillar by a crane, It cannot be assembled on the ground, and the self-elevating jack is inefficient, which increases construction costs and shortens the construction period. Also, in the construction method of ,, since the wall panel is attached to the slab structure on each floor, the weight of the laminated body becomes heavy,
Moreover, since it is a method of going up and down using columns, it is difficult to apply it to middle- and high-rise buildings.

The present invention has been made to solve the above-mentioned problems, and an object thereof is to perform an assembling work of lift-up members such as a slab structure, a roof slab and an outer wall material on the ground. In addition to being able to eliminate work in high places, efficient construction work can be performed, which can shorten the construction period and construction cost, and effectively apply the lift-up method even to middle- and high-rise buildings. It is to provide a building construction method that can.

[0010]

A first construction method for a building according to the present invention is constructed in such a manner that a core pillar having a projecting portion at the uppermost part is confronted in advance at a construction site and the projecting portion is constructed on the projecting portion. , Installing a lift-up jack capable of ascending / descending the lifting rod, first, on the ground between the core pillars, sequentially assemble and stack the slab structure and the roof slab of each floor from the lower floor to the upper floor, and these slab structures and The roof slab is connected to each of the hoisting rods, the openings of the slab structure and the roof slab are covered with an outer wall material, and then the slab structure and the roof slab are jacked up for one floor with the lift-up jacks to be predetermined. Install the lowest slab structure in the installation position on the core column, and add the outer wall material to the part opened by jacking up.
The feature is that the slab structure and the roof slab are installed on the core pillars sequentially from the lower floor to the upper floor by sequentially repeating the jacking up of the floors and the addition of outer wall materials.

A second building construction method according to the present invention is
At the construction site, the core pillar provided with the overhanging portion at the uppermost part is confronted with each other in advance, and at the overhanging portion, a lift-up jack capable of ascending and descending the lifting rod is installed,
First, on the ground between the core pillars, a roof slab is assembled, connected to a lifting rod, jacked up to a predetermined height with the lift-up jack, and a slab structure on the lower floor is assembled under the roof slab to be a lifting rod. By connecting and jacking up these predetermined heights and assembling the slab structure on the lower floor in order from the upper floor to the lower floor, the slab structure on each floor is moved from the upper floor to the lower floor under the roof slab. Loading, covering the openings of these roof slabs and each slab structure with an outer wall material, and then jacking up the roof slab and each slab structure by one floor with the lift-up jack, and at the predetermined installation position to the lowest position. Install the slab structure on the core pillar, add the outer wall material to the opening by jacking up, and repeat the jacking up of the first floor and the addition of the outer wall material in order. And by and characterized by mounting the slab structure and roof plate sequentially core pillar to the upper floor from the lower floor.

In any of the above construction methods, all the slab structures from the first floor to the top floor may be piled up on the ground, or may be piled up and lifted up.
The floor to the top floor may be divided into a plurality of groups, and the groups may be stacked and lifted up.

[0013]

In the above structure, the slab structure and the roof slab are assembled and stacked on the ground from the lower floor portion to the upper floor portion, or assembled from the upper floor portion to the lower floor portion and loaded. These slab structures and roof slabs are lifted up by lift-up jacks and installed in predetermined installation positions from the lower floor part one by one, and outer wall materials are successively added on the ground, eliminating assembly work at high places and improving efficiency. You can do good construction work.

In order to use a pair of core pillars and to lift up by a lift-up jack installed on the upper protruding portion, the outer wall material is provided only in the opening other than the core pillar portion, and the outer wall materials are sequentially arranged. Since the weight of the lift-up member such as the slab structure can be reduced by adding the lift-ups, the lift-up method can be effectively applied to middle- and high-rise buildings.

Moreover, since the opening of the laminated body of the slab structure and the roof slab before the lift-up is completely covered with the outer wall material, and the remaining outer wall material is successively added on the ground, the construction work is affected by wind and rain. And a safe construction work can be performed.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to illustrated embodiments. 1 and 2 show an outline of a building construction method according to the present invention, FIG. 3 is an automatic connecting device between a hoisting rod and a girder used in the construction method of the present invention, and FIG. 4 is a construction of the present invention. The automatic fixing device for the core pillar and girder used in the construction method is shown. Further, FIG. 5 shows two steps of the first half of the construction method according to the present invention, and FIG. 6 shows steps of the latter half common part.

As shown in FIGS. 1 and 2, a building according to the present invention comprises a pair of left and right core pillars A, which are constructed to face each other at a predetermined place, and a roof slab B at the top. , A slab structure C on each floor spanned between the pair of core pillars A,
It is composed of an outer wall material D that covers the openings other than the portion in contact with the core pillar A.

The slab structure C is composed of a plurality of girders a, deck plates / floor reinforcements b installed on the girders, and concrete c placed after the lift-up (FIG. 3).
reference). In the embodiment shown in FIG. 1, the roof slab B has a plurality of girders a.
2 is a truss roof composed of a roof material b'and, in the embodiment of FIG. 2, like the slab structure C, it is composed of a plurality of girders a and deck plates / floor reinforcements b. It is constructed by placing a waterproof concrete c in advance on the b before lifting.

In such a building, according to the present invention, a projecting portion 1 projecting inward is provided at the uppermost portion of the core pillar A, and lift-up jacks 2 are provided on the projecting portion 1 at intervals in the core pillar depth direction. I installed multiple units in advance,
As will be described in detail later, the roof slab B and the slab structure C of each floor are assembled on the ground to be in a laminated state, and the outer wall material D is also mounted on the ground, and the roof slab B and the slab structure C in the laminated state are lifted. The hoisting rod 3 of the up jack 2 is hoisted, and the hoisting rods are sequentially installed from the bottom at predetermined installation positions on each floor.

The lift-up jack 2 is, for example, a so-called center hole jack which lifts the lifting rod 3 which passes through the center of the piston while alternately gripping the lifting rod 3 and the lower gripping device. The jack is not limited to such a center hole jack, and other jacks may be used.

To connect the hoisting rod 3 to the slab structure C or the roof slab B, an automatic connecting device 10 as shown in FIG. That is, each hoisting rod 3 is arranged at the position of the girder a, and each hoisting rod 3 is provided with the notch member 11 in which the notch portions 11a are formed at a predetermined pitch in the vertical direction, and the slab structure C of each floor or On the girder a of the roof slab B, a meshing member 12 that meshes with the cutout portion 11a is provided.

The notch members 11 are integrally attached to the four corners of the hoisting rod 3 so as to project in the longitudinal direction of the girder, and the hoisting rod 3 is arranged so as to pass beside the girder a. The meshing members 12 are members that are long in the girder width direction, and are arranged in a pair in the girder longitudinal direction. The meshing members 12 are moved toward and away from each other by a pair of double rod-shaped cylinders 13 to mesh with the cutout portions 11a, and the cutout portions 11a. 11a can be separated. Cylinder 1
Reference numeral 3 is an electric cylinder (power cylinder) in which a rod is extended by a motor and a screw, and is remotely operated by a control device.

Both ends of the meshing member 12 are movably attached to the pair of guide supporting members 14, and the main body of each cylinder 13 is fixed to an intermediate portion of the guide supporting member 14. The guide support member 14 is fixed to the upper chord member of the girder a via the support member 15.

For the installation of the core pillar A and the slab structure C or the roof slab B which has reached a predetermined installation position on each floor, an automatic fixing device 20 as shown in FIG. 4 is used.

The automatic fixing device 20 includes the plate members 2 at both ends of the girder a in each slab structure C or roof slab B.
It is composed of a vertically long locking hole 22 formed in No. 1 and a fixing fitting 23 attached to a predetermined installation position on the inner side surface of the core pillar A.

As shown in FIG. 4B, the fixing member 23 is housed in a recess 24 formed in the inner surface of the core column A, and is tilted in the vertical direction so that its tip is inserted into the locking hole 22. So that the base is pinned. Further, the recess 24 is provided with a stopper portion 24a that prevents the fixing metal fitting 23 from tilting downward and holds the fixing metal fitting 23 in a substantially horizontal state.

When the girder a is raised, the fixing member 23 is pushed by the plate member 21 and retracted into the recess 24, and the tip of the fixing member 23 is inserted into the locking hole 22. Also, the lower surface taper 23a of the fixing bracket 23 has the locking hole 22.
The lower edge pushes it up and pushes it back into the recess 24. Then, the girder a reaches a predetermined installation position, and the fixing metal fitting 23 is pressed by the spring or the like so that the locking hole 22
When the girder a is inserted into the inside of the slab structure C or the slab structure C or the slab structure C or the slab structure C The roof slab B will be automatically and simply fixed.

Further, the automatic fixing device 20 is not limited to this, and may be one as shown in FIG. 4 (c). This is configured by providing a locking projection 30 on the core pillar A side and a hook-shaped fixing fitting 31 on the girder a side. The base of the fixing member 31 is attached to the pin, and the compression spring 32 presses the fixing member 31 toward the girder a. In addition, the height adjusting device 33 is provided at the base of the fixing bracket 31.
To provide. In this case as well, in the upward direction of the girder a, the fixing metal fitting 31 is disengaged from the locking projection 30, and the fixing metal fitting 31 is locked to the locking projection 30 with a slight lowering.

In the above-mentioned structure, in the present invention, there are two methods for stacking the roof slab B and the slab structure C on the ground before the lift-up to the predetermined installation position. Then, the construction is performed by the following procedure (see FIG. 5 (I) and FIG. 6).

(1) A pair of core pillars A provided with an overhanging portion 1 at the uppermost part are pre-constructed by facing each other at a predetermined interval, and a lift-up jack 2 is arranged on the overhanging portion 1. Keep it fixed.

(2-I) As shown in FIG. 5 (I), first, on the ground between the pair of core pillars A, the slab structure C at the lowest floor is first
Assemble ₁ At the time of this assembly, the girder a is assembled on the support member 40, and the deck plate
The floor rebar b is laid, the assembly is completed, and the concrete is not placed.

(3-I) On the slab structure C ₁ on the lowest floor, by assembling the large beam a on the supporting member 40 and laying the deck plate / floor rebar b on the slab structure C ₁ on the lower floor, the slab structure on the upper floor is constructed. Assemble body C ₂ . Hereinafter, by repeating the same operation, the slab structures C _N up to the Nth floor are assembled and stacked in order from the lower floor portion.

(4-I) Finally, the roof slab B is assembled and completed. In the embodiment of FIG. 1, the girder a is assembled and the girder a is
A roofing material b'is attached on the top of the roof, and in the embodiment shown in FIG.
Assemble the deck plate and
Floor rebar b is laid and waterproof concrete c is placed on it.
To place.

(5-I) On the ground between the pair of core pillars A, slab structures C and roof slabs B for N floors are stacked in order from the bottom, and the stacked large beams a are The hoisting rod 3 is lowered and lowered from the lift-up jack 2 so as to penetrate, and the girder a is automatically connected to the hoisting rod 3 sequentially from the lowest floor to the roof by the automatic connecting device 10 so that the hoisting system can be hoisted.

(6) As shown in FIG. 6, as much outer wall material D as possible is attached to the stacked roof slab B and slab structure C. In the case of the embodiment of FIG. 6, the uppermost floor N to the intermediate floor K
The outer wall material D up to and the outer wall material D _N on the top floor on the roof slab B
Is fixed and the outer wall material of the lower floor is joined to this to form a continuous structure. As a result, the outer peripheral opening is completely covered.

(7) From this state, the installation of the slab structure C and the roof slab B on each floor is started. First,
The slab structure C ₁ on the bottom floor is fixed to the core pillar A at a predetermined installation position. At the time of this fixing, the lift-up jack 2 is used to jack up for one floor, and the jack is slightly lowered at the installation position so that the automatic fixing device 20
Is done automatically by.

(8) By jacking up the first floor, the outer wall material D _K-1 is inserted into the space formed on the first floor and joined to the outer wall material D _K above. The connection between the hoisting rod 3 and the girder a of the slab structure C ₁ on the lowest floor is automatically released.

(9) For the slab structures C _{2 to} C _N ,
The above steps (7) and (8) are performed, and the slab structures C _{2 to} C _N are installed at predetermined installation positions in order from the bottom. The outer wall material D is also added in sequence. At the end, the roof slab B will be installed.

(10) When the installation of the slab structure C on each floor and the addition of the outer wall material D are completed, the core pillar A
And the slab structure C and the roof slab B are completely fixed (finally tightened), and the slab structures C _{1 to} C _{N on} each floor are fixed.
The building is completed by placing concrete c on the deck plate and the floor rebar b.

In the above, the example in which the slab structure C and the roof slab B from the first floor to the top floor N are assembled and piled up and all of them are jacked up is shown. As shown in FIG. To the top floor N may be divided into a plurality of m, stacking and jack-up installation may be performed for each divided group, and the upper layer portion to the middle layer portion and then the lower layer portion may be divided into a plurality of times. In this case, it is possible to reduce the number of jack-ups at one time, to reduce the capacity of the lift-up jack, and to assemble the slab structure or the like closer to the ground. .

Next, in the second method of the present invention, the construction is performed by the following procedure (see FIG. 5 (II) and FIG. 6).

(1) Core pillar A as in the first method described above
Is previously constructed, and the lift-up jack 2 is arranged and fixed. The lifting rod 3 is hung from the lift-up jack 2.

(2-II) As shown in FIG. 5 (II), first, on the ground between the pair of core columns A, the roof slab B is first supported by the support member 4.
Assemble on 0 to complete. Also in this case, similarly to the first construction method, in the embodiment of FIG.
A roofing material b'is attached on the top of the roof, and in the embodiment shown in FIG.
Assemble the deck plate and
Floor rebar b is laid and waterproof concrete c is placed on it.
To place.

(3-II) The lower end of the lifting rod 3 of the lift-up jack 2 is connected to the girder a of the roof slab B by the automatic connecting device 10, and the roof slab B is jacked up to a predetermined height. This jack-up height is set to a height at which the slab structure C can be assembled with the ground.

(4-II) On the ground below the roof slab B, the slab structure C _N which is the top floor is assembled. At the time of this assembly, the girder a is assembled on the support member 40, the deck plate / floor rebar b is laid on the girder a, the assembly is completed, and concrete is not poured.

(5-II) With the roof slab B supported by the slab structure C _N on the uppermost floor via the support member 40, the connection between the roof slab B and the lifting rod 3 is released, and the lifting rod 3 is released. Jack down to slab structure C on the top floor
The slab structure C _N on the uppermost floor is connected to the large beam a of _{N by} the automatic fixing device 10 and the roof slab structure C is jacked up to a predetermined height. Hereinafter, by repeating the same operation, the slab structure C is sequentially transferred from the upper floor portion to the lower floor portion.
Is loaded.

Similar to the first construction method, on the ground between the pair of core columns A, N-story slab structures C and roof slabs B are stacked in order from the bottom. The following steps of FIG. 6 are the same as steps (6) to (10) of the first construction method, and therefore the description thereof will be omitted.

Also in the case of this second construction method, it is possible to divide the first floor to the uppermost floor N into a plurality of parts and divide the upper part to the middle part and then to the lower part a plurality of times.

[0049]

The building construction method according to the present invention has the following effects because it has the above-mentioned structure.

(1) Assemble the slab structure and the roof slab from the lower floor portion to the upper floor portion on the ground, or assemble and load from the upper floor portion to the lower floor portion, and lift up the slab structure and the roof slab. Since it was lifted up by a jack, it was installed from the lower floor part to the predetermined installation position in sequence, and the outer wall material was sequentially added on the ground, so assembly work at high places can be eliminated and efficient construction work can be performed. Therefore, it is possible to significantly reduce the construction period and the construction cost. In addition, safe construction work can be performed.

(2) A pair of core pillars are used, and in order to lift up by a lift-up jack installed on this upper projecting portion, the outer wall material is provided only in the opening other than the core pillar portion, and the outer wall Since the weight of the lift-up member such as the slab structure can be reduced by sequentially adding the materials, the lift-up method can be applied to a middle-high-rise building and a middle-high-rise building can be constructed quickly and safely.

(3) Since the openings of the laminated structure of the slab structure and the roof slab before the lift-up are covered with the outer wall material, and the remaining outer wall materials are sequentially added on the ground, the surroundings of the building are completely covered during construction. It can be completely covered, and the construction period can be shortened without the construction work being affected by wind and rain.
In addition, safer construction work can be performed.

[Brief description of drawings]

FIG. 1 is a perspective view showing an outline of a building construction method according to the present invention.

FIG. 2 is a perspective view showing a different example of the structure of the roof slab in the same construction method as in FIG.

FIG. 3 is an automatic connecting device for connecting a hoisting rod and a girder according to the present invention, in which (a) is a transverse sectional view and (b) is a front view.

FIG. 4 is an automatic fixing device for installing a core column and a girder according to the present invention, in which (a) is an overall partial sectional view,
(B) is a detailed partial sectional view, and (c) is a sectional view showing an automatic fixing device having a different structure.

FIG. 5 is a schematic front view sequentially showing the first half of the construction method according to the present invention, where (I) is the first construction method and (II) is the second construction method.
The construction method is shown.

FIG. 6 is a schematic front view sequentially showing the latter half of the construction method according to the present invention.

[Explanation of symbols]

A ... Core pillar, B ... Roof slab, C ... Slab structure, D ... Outer wall material, a ... Large beam, b ... Deck plate / floor rebar, b '... Roofing material, c ... Concrete, 1 ... Overhang part, 2 ... Lift-up jack, 3 ... Lifting rod, 10 ... Automatic connecting device, 11 ... Notch member, 11a ... Notch part, 12 ... Engaging member, 13 ... Cylinder, 20 ... Automatic fixing device, 21 ... Plate member, 22 ... Locking hole , 23 ... Fixing hardware, 24 ... Recess, 30
… Locking protrusions, 31… Fixing metal fittings.

Claims (2)

[Claims] 1. A core pillar having a projecting portion at the top is confronted at a construction site in advance, and a lift-up jack capable of ascending and descending a lifting rod is installed on the projecting portion. On the ground between the pillars, the slab structure and the roof slab of each floor are sequentially assembled and stacked from the lower floor to the upper floor, and the slab structure and the roof slab are respectively connected to the lifting rod, and the slab structure and The opening of the roof slab is covered with an outer wall material, then the slab structure and the roof slab are jacked up for one floor with the lift-up jack, and the slab structure at the lowest position is installed on the core column at a predetermined installation position, An outer wall material is added to the part opened by jacking up, and the slab construction is repeated by sequentially repeating the jacking up of the first floor and the addition of the outer wall material. A building construction method characterized by sequentially installing the structure and roof slab from the lower floor to the upper floor on the core pillars. 2. A core pillar having a projecting portion at the top is confronted at the construction site in advance, and a lift-up jack capable of moving a lifting rod up and down is installed on the projecting portion. On the ground between the pillars, the roof slab is assembled and connected to the lifting rod, the lift-up jack is used to jack up to a predetermined height, and the lower slab structure is assembled and connected to the lifting rod under the roof slab, By repeating these jack-ups of a predetermined height and assembly of the lower slab structure from the upper floor to the lower floor, the slab structure of each floor is loaded under the roof slab from the upper floor to the lower floor. The openings of the roof slab and each slab structure are covered with an outer wall material, and then the roof slab and each slab structure are jacked up by one floor with the lift-up jack to perform a predetermined installation. By installing the slab structure at the lowest position in the mounting position on the core pillar, adding the outer wall material to the part opened by jacking up, and repeating the jacking up of the first floor and the addition of the outer wall material in sequence, the slab structure And the construction method of the building characterized by sequentially installing the roof slab from the lower floor to the upper floor on the core pillar.