JPH0445628B2 - - 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 pouring concrete is assembled. 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 This causes a significant drop in efficiency.

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 operation, a large number of small members must be prepared, and the efficiency of assembly and disassembly work is significantly reduced.

Therefore, the object of the present invention is to continuously carry out all of steel construction, reinforcement work, formwork assembly and dismantling work, concrete finishing work, etc. using a single mechanism consisting of a gondola device and a hoist device arranged on a unit rail. By doing this, the operating rate of cranes, etc. and work efficiency are significantly improved, the number of parts is small, it is economical, construction safety is ensured, and even parts such as large panels can be easily processed at once. The purpose is to provide a construction method that allows transportation.

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. , a gondola device that is connected to any position of a frame consisting of steel columns and steel beams assembled by a crane, and has gondolas that can be moved up and down on the scaffolding gondola rail and hoist rail for cargo handling, respectively, and a hook that can be moved up and down. A hoist device equipped with In addition, the unit rail and the gondola device and hoist device arranged thereon are sequentially rearranged upward in accordance with the assembly of the steel column.

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.

Once the concrete has been poured and the framework of columns, beams, walls, and floors have been formed, the gondola 3c dismantles the formwork panels and finishes the concrete, and the hook 5c of the hoist 5 removes the dismantled formwork panels. Transfer to next working position.

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. When the above-mentioned construction work is completed, the unit rail 1 is moved upward, and the construction work above the above-mentioned work position is carried out in sequence.

The structures of the gondola device 3 and hoist device 5 will be described in more detail.

As shown in Figures 1, 2, 3, and 4, when the steel columns C ₁ , C _{2 .} . . Horizontal bracket 1 protruding outward from the top of steel column C ₃
The base end of the bracket 1a is fixed, and two parallel scaffolding gondola rails 1 are unitized along the periphery of the building frame A at the bottom of the bracket 1a.
b and the cargo handling hoist rail 1c.

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 1 continuously, 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. (3rd
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 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 steel column _C3 on the third floor, 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, steel columns C ₄ and C ₅ on the 4th and 5th floors 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 frame C ₅ .
For example, when the unit rail 1 is fixed to the steel column _C5 , construction work is carried out near the steel columns _C3 and _C4 on the third and fourth floors.

As shown in Fig. 1, for example, when carrying out construction work near the steel frame column _C1 , first, the user runs around the building frame A along the scaffold gondola rail 1b and cargo hoist rail 1c, and completes the prescribed work. The gondola 3c and hook 5c are moved to the desired position. In this state, the steel pillar is
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 gondola device 5 is used, even large and wide panels can be pulled up at once, and there is no need to prepare a large number of small panels, and by using large panels, the transportation work and attachment/detachment work can be shortened.

Concrete is poured into the formwork, and when the concrete is dry, formwork panel 7 is poured from 3c above the gondola.
The dismantled formwork panels 7 are lifted up by the hoist device 5 and moved up or traveling 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 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 zone, and the same work as in the E construction zone is carried out in the F and G construction zones. At this time, the formwork panel 7 used in the E construction zone is transported by the hook 5c in the direction of the F construction zone and the G construction zone.

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 on the outside, it is carried out in parallel with construction work such as assembling and dismantling the inner formwork, and it is preferable that the construction on the inside is carried out using scaffolding that can be raised and lowered freely and is self-propelled.

Next, if the unit rail 1 is attached directly to the steel column C _o near the topmost steel column C _o , construction work around this steel column C _o will not be possible.

Therefore, in this case, as shown in Figure 5, the steel column
A projecting beam 6 is provided that stands above C _o , and this projecting beam 6
Railer 1b for scaffolding gondola is attached to horizontal arm 6a of
A hoist rail 1c for cargo handling is provided, and a gondola device 3 and a hoist device 5 are movably connected to these rails, respectively. 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.

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. The work efficiency is significantly improved, which allows the use of machine tools to be shortened and construction costs to be reduced.

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

[Brief explanation of drawings]

Fig. 1 is a schematic front view of the framework of the building under construction, Fig. 2 is a schematic plan view of Fig. 1, and Fig. 3 is an enlarged partially cutaway plan view of the unit rail attached to the pillar. FIGS. 4 and 5 are schematic enlarged front views showing a state in which the gondola device and the hoist device are connected to the unit rail. 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... Projection, 7... Formwork panel.

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 device in which a large number of unit rails are connected to arbitrary positions of a frame consisting of steel columns and steel beams assembled by a crane, and each of a scaffold gondola rail and a cargo handling hoist rail is equipped with a gondola that can move up and down. A hoist device with a vertically movable hook is installed so that it can move freely in the horizontal direction, and the gondola device and hoist device work together to perform steel frame work, reinforcement work, formwork assembly and dismantling work, finishing work, etc. This method of construction work is characterized in that all of the steps are carried out continuously, and the unit rail and the gondola device and hoist device installed thereon are sequentially moved upward in accordance with the assembly of the steel columns. 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.