JPH0445629B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a construction method that can continuously perform steel frame work, reinforcement work, formwork work, and finishing work for a steel-framed reinforced concrete structure using one mechanism.

Generally, in steel reinforced concrete structures, such as high-rise buildings, a large number of steel columns are erected, and horizontal steel beams are erected vertically and horizontally between the steel columns.
Reinforcement is placed around the pillars and steel beams, and concrete is poured around the steel beams and reinforcement to form the framework of walls and floors.When forming this framework, formwork for concrete pouring is assembled. Furthermore, after the concrete has hardened, the formwork is dismantled and concrete finishing work is carried out.

Conventionally, when carrying out the above construction, scaffolding for steel construction and framework scaffolding for reinforcing, assembling and dismantling formwork, and finishing were required. As the construction site becomes higher up, the above-mentioned scaffolds are also erected upward each time, and these scaffolds are dismantled one after another after the construction on the top level is completed. For this purpose, it is necessary to prepare a large number of framework scaffolds, etc., at least according to the circumference and height of the building frame, and to assemble and dismantle these, making the assembly and dismantling work difficult, time-consuming, and reducing work efficiency. This is the cause of a significant decline in

In addition, it is not economical due to the large number of parts, and the assembly and disassembly work is carried out at a considerable height above the ground, which is dangerous, and there is also the problem that measures must be installed to prevent this. .

Furthermore, when assembling and dismantling the scaffolding above, heavy machinery such as cranes will be required in some cases.
Since this is a manual process, a large number of small parts must be prepared, and the efficiency of assembly and disassembly work is significantly reduced.

Therefore, the object of the present invention is to perform steel frame work on the outside and inside of a structure by using a single mechanism consisting of a gondola device and a hoist device arranged on a unit rail, and a self-propelled lifter or self-propelled scaffolding that can be vertically extended and contracted. By performing reinforcement work, formwork assembly and dismantling work, concrete finishing work, etc. all in succession, crane operation rate and work efficiency are significantly improved, the number of parts is small, and it is economical. To provide a construction work method that is excellent in construction safety, and allows even members such as large panels to be easily transported at one time.

In order to achieve this objective, the present invention constructs a unit rail by connecting a scaffold gondola rail of arbitrary length and a cargo hoist rail in parallel between two brackets, and connects a large number of the unit rails. , joined at any position outside the framework consisting of steel columns and beams assembled by crane,
A gondola device equipped with a gondola that can move up and down and a hoist device with a hook that can move up and down are arranged on the scaffolding gondola rail and the hoist rail for cargo handling so that they can move freely in the horizontal direction, and a hoist that can be moved up and down. A running lifter or a self-propelled scaffold that can move up and down is installed inside the frame, and the gondola device and hoist device work together to perform all steel work, reinforcement work, formwork assembly and dismantling work, finishing work, etc. Continuously, the unit rail and the gondola device and hoist device installed thereon are sequentially moved upwards according to the assembly of the steel frame column, and the steel frame inside is moved using the self-propelled lifter or self-propelled scaffolding. It is characterized by the fact that construction work, reinforcement work, assembly and dismantling of formwork, finishing work, etc. are all carried out continuously.

Embodiments of the present invention will be described below with reference to the drawings.

As shown in Figure 1, the lowest steel column is placed on the ground.
A large number of steel columns C ₁ are erected, and a crane is used to lift the steel column C ₂ to the steel column C _{1 , and the upper end of the steel column C 1 and} the lower end of the steel column C ₂ are temporarily fixed. In the embodiment, steel columns C ₂ and C ₃ are integral columns. Similarly, the upper steel columns C ₄ , C ₅ , _{C 6} . On the other hand, lift up steel beams B ₁ and B ₁ with a crane, and connect both ends of steel beam B ₁ to steel columns.
Temporarily fasten between C ₁ and C ₁ . Similarly, steel beam B ₂ ,
_B3 ... _Bo is also lifted up by a crane and temporarily fixed between steel columns _C2 and _C2 , between _C3 and _C3 , and between Co _{and Co} , to construct the frame A of the building, which is a structure.

In the above state, for example, the unit rail 1 is fixed to the outside of the steel column C ₃ and the steel beam B ₃ , and the gondola device 3 and the hoist device 5 are disposed on this unit rail 1 so as to be able to move laterally. The hoist device 5 and the hoist device 5 work together to carry out construction mainly around the outside at a position below the steel beam 3.

For example, in the gondola 3c that is included in the gondola device 3 and can move up and down, the final tightening work is performed between the steel columns C ₁ and C ₂ , the final tightening work is performed between the steel column C _{1 and the steel beam B 1} , and the final tightening work is performed between the steel columns C ₁ and the steel beam B 1. C ₁ reinforcement work, floor reinforcement work,
A series of work will be carried out, including formwork work for steel column C ₁ , formwork work for steel beam B ₁ , and formwork work for walls and floors.

The hoist device 5 uses a vertically movable hook 5c included in the hoist device to carry out operations such as lifting reinforcing bars and formwork panels necessary for the above-mentioned operations.

Concrete is poured to form the framework of columns, beams, walls, and floors.The gondola 3c is used to dismantle the formwork panels and finish the concrete, and the hooks 5c of the hoist 5 move the dismantled formwork panels to the next stage. to the working position.

On the other hand, once the floor is formed, a self-propelled lifter or self-propelled scaffold is placed on the floor and the same construction work as above for the inner area is carried out.

Furthermore, after the frame is formed, external wall materials such as panels, sealing materials, etc. are pulled up using hooks 5c, and external wall work, sealing work, finishing work, etc. are performed using gondola 3c.

Once the above construction and work is completed, UNIT TRAIL 1
Move the area upwards and perform the construction work above the above work position in sequence.

When forming walls and beams around frame A in a state where a floor has been formed on frame A, which is a building structure, construction work on the inside of these walls and beams will be based on the embodiments shown in Figures 3 and 4. explain about.

In Figure 3, on the lower first floor P, there are beams 30 and walls 3.
Concrete has been poured on the floors 32 of the first and second floors, and the formwork panels have been dismantled.
On the second floor Q, the formwork panels are being dismantled by the self-propelled lifter 33 that can be vertically expanded and contracted, and on the third floor R, the formwork is being assembled using the self-propelled scaffolding 34 that is vertically movable. shows.

Concrete is placed on the beams 30 and walls 31 on the second floor, and on the floor 35 on the third floor, and these frameworks are supported by formwork panels 36, 37, beams 38, and the like.

These formwork panels 36, 37, beams 38,
Scaffolding 39 etc. is a self-propelled lifter 33 that self-propels on the floor 32.
It will be dismantled and transported to another construction site.

The self-propelled lifter 33 is driven by the drive wheel 4 by the motor 40.
1, it travels in any direction on the floor 33, and a workbench 44 is provided on a trolley 42 via a pantograph 43 so as to be vertically telescopic. The system expands and contracts to raise and lower workers and construction materials to the required height of the work position.

In the case shown, the self-propelled lifter 33 is driven to the position where the formwork is assembled, and the workbench 44 dismantles the formwork panels 36, 37, etc., but all other work is performed. It is something. That is, on the third floor R, a self-propelled scaffold 34 is disposed on the floor 35 so as to be freely movable, and the self-propelled scaffold 34 is self-propelled to the forming position of the frame of the self-propelled scaffold 34, and the inner steel beam B ₃ is welded on the workbench 45. We carry out all steel frame work such as _B3 steel beams and reinforcement work around the columns, assembly and dismantling of formwork panels 36, 37, beams 38, scaffolding 39, etc., finishing work on concrete surfaces, etc.

In addition, it is necessary to assemble the outer formwork in correspondence with the assembly of the inner formwork, but this involves attaching the formwork panel 17 on the gondola 3c suspended from above, as will be described later. It is.

An arbitrary opening 32a is formed in the floor 35 of each floor as shown in FIG. 4, and the self-propelled lifter 33 and self-propelled scaffold 34 shown in FIG. It is raised and lowered from each floor. In addition, formwork panels, beams, and
Self-propelled lifter 3 for other building materials, mechanical tools, etc.
3 etc., but as shown in FIG. 4, the material 46 is sequentially transferred to the upper floors via another self-propelled lifter 34a, and this material 46 etc. is transported to another cart 4 that is self-propelled on the floor.
7. It may be delivered to a trailer and transported to the construction location.

Next, the outside work will be carried out using the gondola device 3 and hoist device 5.

As shown in Figures 1, 2, 5, 6, and 7, when the steel columns C ₁ , C _{2 .} . . The base end of horizontal bracket 1a protruding outward is fixed to the upper part of each steel column _C3 located at
Two parallel scaffolding gondola rails 1b and cargo handling hoist rails 1c, which are unitized along the periphery of the building frame A, are fixed to the lower part of A.

The bracket 1a is detachably fixed to the steel column _C3 or the steel beam _B3 with bolts or the like, but it may also be fixed by welding or the like.

A scaffolding gondola rail 1b and a cargo handling hoist rail 1c are connected in parallel between two brackets 1a, 1a facing each other to form a unit rail 1.

That is, since the scaffolding gondola rail 1b and the cargo handling hoist rail 1c are very long in the longitudinal direction and are heavy, a unit rail that is a combination of the bracket 1a, the scaffolding gondola rail 1b, and the cargo handling hoist rail 1c is used. By assembling a large number of parts 1 in succession, weight is reduced and workability is improved.

In this case, the scaffolding gondola rail 1b and cargo handling hoist rail 1c are arranged in parallel with the same distance between the two opposing steel columns _C3 and _C3 , and the scaffolding gondola rail 1b and cargo handling hoist rail 1c are A unit rail 1 is formed by fixing the vicinity of both ends to the lower parts of two brackets 1a, and this unit rail 1 is fixed around a building frame A to form a continuous rail. (5th
Figure) The gondola device 3 is installed on the scaffolding gondola rail 1b.
are arranged so that they can move freely in the horizontal direction. A hoist device 5 is disposed on the cargo handling hoist rail 1b so as to be movable in the horizontal direction. The gondola device 3 includes a gondola 3c that is vertically movable, and the hoist device 5 includes a hook 5c that is vertically movable.

A gondola traveling device 2 is connected to the scaffolding gondola rail 1b via self-propelled wheels 2a in a freely movable manner, and this gondola traveling device 2 is equipped with a motor 2b, and the motor 2b is operated by remote control from the gondola 3c. It is designed to drive the vehicle and run in one direction.

A wire 3a is suspended from the lower part of the gondola traveling device 2, and the lower part of the wire 3a is connected to the gondola 3.
When the winch 3b is connected to the gondola 3c and the winch 3b is driven on the gondola 3c, the wire 3a is wound or unwound so that the gondola 3c moves up and down along the working position.

Similarly, the hoist device 5 has self-propelled wheels 4a and a load hoisting member 5a, and has a hoist rail 1 for loading.
A hoist traveling device 4 is connected to c via self-propelled wheels 4a.
are coupled so as to be freely movable, and this hoist traveling device 4
is equipped with self-propelled wheels 4a, a motor 4b for driving the wheels, and a load hoisting member 5a.
The load hoisting member 5a has a wire 5b and a hook 5c.
The travel motor 4b and the load hoisting member 5a are controlled by remote control from the gondola 3c.
It is now possible to drive the

In the case shown in Figure 1, where the scaffolding gondola rail 1b and cargo hoist rail 1c are held on the third floor steel column _C3 , these scaffolding gondola rails 1
The gondola 3c, hoisting member 5a and hook 5c are moved along the hoist rail 1c for cargo handling to any desired position, and the gondola 3c and hook 5c are moved along the height range of the steel columns C ₁ and C ₂ . The construction work will be carried out near steel columns C ₁ and C ₂ and steel beams B ₁ and B ₂ .

When the construction around steel columns C ₁ and C ₂ and steel beams B ₁ and B ₂ is completed, the fourth and fifth floor steel columns C ₄ and C ₅ have already been erected above steel column C ₃ . ,
As a result, the entire unit rail 1 is removed from the steel column C ₃ or steel beam B ₃ , moved upwards by a crane, and fixed again to the top of the steel column C ₄ or steel column C ₅ , for example, unit rail 1 is removed from the steel column C 3. ₅ , construction will be carried out near steel columns C ₃ and C ₄ on the third and fourth floors.

As shown in Fig. 1, for example, when carrying out construction near the steel frame column _C1 , first, the user runs around the building frame A along the scaffolding gondola rail 1b and the cargo handling hoist rail 1c, and completes the prescribed construction work. The gondola 3c and hook 5c are moved to the desired position. In this state, the steel column with gondola 3c
Perform work such as riveting required to connect C ₁ and C ₁ and steel column C ₁ and steel beam B ₁ .

In addition, the reinforcing bars are pulled up from the ground using hooks 5c, and reinforcement work is carried out around the steel column C ₁ and around the steel beam B ₁ .

Next, in order to form the frame of the walls and beams along the steel column _C1 , formwork is formed and concrete is poured into the formwork.At this time, formwork panels 7 outside the ground are It is pulled up by the load hoisting member 5a via the hook 5c.

In this case, since the hoist device 5 is used, even large and wide panels can be lifted up at once, and there is no need to prepare many small panels, and by using large panels, it is possible to shorten the transportation work and attachment/detachment work.

Concrete is poured into the formwork, and when the concrete is dry, the formwork panel 7 is poured from above the gondola 3c.
The dismantled formwork panels 7 are hoisted up by the hoist device 5 and raised or moved to proceed with the installation work one by one.

Similarly, if a building construction site is divided into four blocks, D, E, F, and G, as shown in Figure 2, and construction is carried out in each of these blocks sequentially, for example, the construction in E will be completed. Then, the scaffolding gondola rail 1b and the cargo handling hoist rail 1c
Gondola 3c and hook 5c along F section, G
The work is carried out in the direction of the construction section F and G, and the same work as in the E construction section is carried out, and the form panel 7 used in the E construction section at this time is conveyed by the hook 5c in the direction of the F construction section and the G construction section.

The above explanation is for gondola device 3 and hoist device 5.
is installed along the outer periphery of the building frame A, and the case where construction is particularly carried out around the outside is described. However, a scaffolding gondola rail 1b and a hoist rail 1c for cargo handling are installed inside, and the inside is installed along this rail. May be used for construction purposes. In addition, when carrying out construction work on the outside, it is carried out in parallel with work such as assembling and dismantling the inner formwork, and it is preferable that work on the inside is carried out using scaffolding that can be raised and lowered freely and is freely movable.

Next, near the top steel column C _o , this steel column C _o
If you attach unit rail 1 directly to
Construction around this steel column C _o will no longer be possible.

Therefore, in this case, as shown in Figure 7, the steel column
A projecting beam 6 is provided that stands above C _o , and this projecting beam 6
Scaffolding gondola rail 1b is attached to the horizontal arm 6a of
A cargo handling hoist rail 1c is provided, and two sets of gondola devices 3 and hoist devices 5 are respectively connected to these rails so as to be movable. When the gondola device 3 and the hoist device 5 are connected to the joist 6, it becomes possible to pull up the gondola etc. to near the arm 6a of the joist 6, and it is possible to carry out work on the upper part of the steel column _Co.

As described above, according to the method of the present invention, the following unique effects can be obtained.

A unitized gondola device and hoist device are placed outside the building frame, and a self-propelled lifter or self-propelled scaffold is placed inside, allowing construction to be carried out simultaneously inside and outside, improving work efficiency. This will speed up the construction process.

The unit rail, which consists of a scaffolding gondola rail, a hoist rail for cargo handling, and two brackets, and the gondola device and hoist device installed on the unit rail, are all integrated into a unit, so installation, removal, and replacement work to the building frame can be done only once. This significantly improves work efficiency, shortens the construction period, and reduces construction costs.

Formwork panels and other building materials needed for construction can be lifted or lowered using hoists, and gondolas can be moved at the same time as these materials are transported, so these materials can be quickly used to transport the materials needed. Since the construction work can be carried out, the work efficiency of the construction work is significantly improved.

The gondola device and hoist device can move freely along the outer periphery of the building frame to any desired position, and the gondola device and the hoist device's hook can be raised and lowered to any desired position in the vertical direction, making it a special scaffolding. There is no need to assemble scaffolding for each work, and the gondola device and hoist device work together to perform all the work around the outside including steel frame work, reinforcement work, formwork assembly and dismantling work, concrete finishing work, etc. The construction work can be carried out continuously.

Since no special scaffold assembly or dismantling work is required other than the installation and removal of the unit rail, work efficiency is significantly improved, and construction work efficiency and construction time can be shortened.

Since the only parts are the unit rail, gondola device, and hoist device, there is no need to assemble many scaffolds like in the past, and the number of parts is reduced because one mechanism can be rearranged or moved horizontally. It is highly economical as it has less

Scaffolding is not required to be sequentially assembled and dismantled along the height of the framework of the building, and there is no need to climb up and down the scaffolding during work, so safety is excellent.

Since the self-propelled lifter or self-propelled scaffolding can be freely self-propelled to any position, and the work platform can be raised and lowered to any desired position, there is no need to assemble special scaffolding or scaffolding for each work, and a single self-propelled lifter can be used. Alternatively, steel construction, reinforcement work, formwork work, and finishing work inside the frame can be carried out continuously using self-propelled scaffolding.

By using self-propelled lifters or self-propelled scaffolding, there is no need for special scaffold assembly and dismantling work, so work efficiency is significantly improved, and construction work efficiency and construction time can be shortened.

Since it is sufficient to use one self-propelled lifter or one self-propelled scaffold for one construction work, the number of parts is small and it is highly economical.

By using a self-propelled lifter or self-propelled scaffolding, there is no need to sequentially assemble and dismantle high scaffolding, and there is no need for workers to ascend and descend high scaffolding, resulting in excellent safety.

By using a self-propelled lifter or self-propelled scaffolding, even heavy and large materials can be transported, making it possible to carry out construction work using a large amount and wide material at one time, thereby improving the efficiency of construction work.

[Brief explanation of the drawing]

Figure 1 is a schematic front view of the framework of the building under construction, Figure 2 is a partially cutaway schematic plan view of Figure 1,
FIG. 3 is a longitudinal sectional front view of a state in which construction is being carried out using a self-propelled lifter and self-propelled scaffolding according to an embodiment of the present invention, and FIG. 4 is a schematic longitudinal sectional front view of a state in which materials are being transferred. Fig. 5 is an enlarged partially cutaway plan view of the unit rail attached to the steel column, Fig. 6
The figure is a schematic enlarged front view of a state in which a gondola device and a hoist device are connected to the unit rail, and FIG. 7 is an enlarged front view of a state in which a gondola device and a hoist device are connected to the uppermost projecting beam. A...Frame, B ₁ , B ₂ ...B _o ... Steel beam, C ₁ , C ₂
...C _o ... Steel column, 1 ... Unit rail, 1a
...Bracket, 1b...Scaffolding gondola rail, 1c...Cargo handling hoist rail, 2...Gondola traveling device, 3...Gondola device, 3c...Gondola, 4...Hoist traveling device, 5...Hoist device , 5c...Hook, 6...Structural beam, 7...Formwork panel, 33...Self-propelled lifter, 34...Self-propelled scaffold.

Claims (1)

[Scope of Claims] 1. A unit rail is constructed by connecting a scaffold gondola rail of arbitrary length and a cargo hoist rail in parallel between two brackets, facing each other;
A gondola in which a large number of unit rails are connected to arbitrary positions on the outside of a framework made up of steel columns and steel beams assembled by a crane, and each of the scaffolding gondola rail and cargo hoist rail is equipped with a gondola that can move up and down. The device and a hoist device equipped with a hook that can be moved up and down are arranged so as to be able to move freely in the horizontal direction, and a self-propelled lifter that can be extended and contracted up and down or a self-propelled scaffold that can be moved up and down is arranged inside the frame to create a gondola device. The steel frame work, reinforcement work, formwork assembly and dismantling work, finishing work, etc. on the outside are all carried out continuously by cooperating with the hoist equipment.
In addition, the unit rail and the gondola device and hoist device installed thereon are sequentially moved upwards according to the assembly of the steel frame column, and furthermore, the steel frame work and reinforcement work on the inside is carried out using the self-propelled lifter or self-propelled scaffold. , a building construction method characterized by performing the assembly and dismantling of formwork, finishing work, etc. all in succession. 2. Lifting, lowering and traveling of the gondola device and hoist device are remotely controlled on the gondola.
Construction method described in section. 3. The gondola is connected to a gondola traveling device so as to be able to move up and down via a winch provided on the gondola, and the gondola traveling device is connected to a scaffolding gondola rail via self-propelled wheels so that it can run freely. Construction method described in section. 4. The hoist device has self-propelled wheels and a load hoisting member, the self-propelled wheels are movably connected to a hoist rail for cargo handling, and a hook is coupled to the load hoisting member so as to be movable up and down. Claim 1
Construction method described in section. 5. The construction method according to claim 1, wherein the self-propelled lifter or the self-propelled scaffold is moved vertically through an opening in the floor. 6. The construction method according to claim 1, wherein the self-propelled lifter comprises a movable cart and a lifting device mounted on the movable cart. 7. The construction method according to claim 1, wherein the self-propelled scaffolding comprises a movable trolley and a vertically movable work platform mounted on the movable trolley.