JPH04191295A - Climbing method of crane and footing base therefor - Google Patents

Abstract

PURPOSE:To improve the extent of workability in a simple structure by performing a rope climbing in use of a hanging of a crane body, and enabling it to do a floor climbing without using a hydraulic jack. CONSTITUTION:An end of a hanging wire 6 of a crane body 2 is connected to this body 2 via a clamping block 4 and, after this body 2 is separated from an initial footing base 1, the wire 6 is wound up, making the body 2 go up with the block 4 as reaction, for example, at a spot upped as far as a portion for two floors, the body 2 is supported on a mast 5, thus a four F4 and a fifth floor F5 are constructed. Next, after climbing of specified floors, a climbing base 8 is locked to a roof floor RF. Successively, the body 2 is made to go down after being gradually loosed as giving a tensile supporting force by the wire 6, with the block 4, thus it is clamped to the base 8 for retention. Subsequently, the wire 6 is connected to the uppermost mast 5, separating this mat 5 from the lower mast 5, and the wire 6 is wound up and removed to a desired spot together with the block 4.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a crane climbing method and a foundation base used therein.

<Prior Art> The following methods are conventionally known as crane climbing methods.

A. First conventional example This is a method called rope climbing, in which a mast with a climbing block attached to the upper end is fixed to the crane body by passing it through the foundation base fixed to the floor, which is provided on the crane body. Climb the crane body along the mast using the hanging wire, remove the climbing block after climbing the specified amount, attach the climbing block to the top of the new mast, and connect the bottom of the mast to the top of the previous mast. The crane itself was then climbed in the same way as in the previous case.

B. Second conventional example This is a method called floor climbing,
A mast of a predetermined length spanning several floors is erected on a foundation base that is attached and fixed to the lower floor, and
The crane body is installed on the mast, a jack support base is attached and fixed to a floor a predetermined floor above the floor on which the foundation base is installed, a hydraulic jack is installed between the jack support base and the foundation base, and the foundation base is fixed. It is unfixed from the floor, the foundation base is climbed together with the mast and the crane body using the jack support base as a reaction force, and after climbing the specified floor, the foundation base is attached and fixed to the floor a specified floor above the previous one. He was climbing.

<Problems to be Solved by the Invention> However, the first and second conventional examples described above each have the following drawbacks.

a. Disadvantages of the first conventional example In order to use the hanging wire of the crane body,
There is no need to use hydraulic jacks, and the overall structure is simple for climbing. Since there is a mast opening through which the mast has penetrated, a so-called defective opening, finishing work on the floor cannot be carried out early, resulting in an increase in construction time and construction costs.

b. Disadvantages of the second conventional example The number of masts used can be reduced, and as a result, the crane can be easily dismantled after construction is completed.
It also has the advantage of allowing finishing work to be done on the lower floors at an early stage, but has the disadvantage of requiring large-scale equipment such as hydraulic jacks for climbing, resulting in high equipment costs. there were.

The present invention has been made in view of the above circumstances, and the crane climbing method of the invention according to claim 1 is provided by attaching a climbing block to a hanging wire provided on the crane. Climb the crane body along the mast using
Although it has a simple structure, it can be used not only for so-called rope climbing, but also for so-called floor climbing, in which the crane body is fixed to the upper floor and the mast on the lower floor is removed using a hanging wire.
The purpose of the invention is to improve workability, and the basic base of the invention according to claim (2) is to change between rope climbing and floor climbing when carrying out the crane climbing method described above. The aim is to provide something that can be done easily.

<Problem to be solved by the invention> In order to achieve the above-mentioned object, the crane climbing method of the invention according to claim 1 includes attaching the crane body to the initial foundation base and attaching the crane body to the initial foundation base. The lower end of the mast with a climbing block attached to the upper end is fixed to the initial foundation base, and then the end of the suspension wire of the crane main body is connected to the crane main body via the climbing block, and the crane After separating the main body from the initial foundation base, the crane main body is raised using the reaction force of the climbing block by winding up the hanging wire, and after repeating these steps and climbing a predetermined floor, it is moved to the floor near the crane main body. A floor-climbing foundation base with a mast insertion hole with a diameter larger than the mast diameter is installed and fixed in the center, and the crane body is lowered and held on the floor-climbing foundation base. After that, the suspension wire is attached. Connect it to the top mast, separate the top mast from the masts below it, and remove it through the mast insertion hole by winding up the hanging wire, repeating the mast removal process, and remove it from the initial foundation base. After separating and removing the lowest mast, the initial foundation base is separated from the floor and removed, and an auxiliary base material that closes the mast insertion hole is attached to the floor climbing foundation base, and then the upper end The mast with a climbing block attached to it is suspended on an auxiliary base material, attached to and fixed to the floor-climbing foundation base, and the crane body is lifted by using the climbing block as a reaction force by winding up the hanging wire. There is.

Furthermore, the basic base of the invention according to claim (2) is used in the crane climbing method according to claim 1, and in order to achieve the above-mentioned object, a mast insertion hole through which the mast is inserted is provided. The floor-climbing foundation base consists of a floor-climbing foundation base having a floor-climbing foundation base, and an auxiliary base material that is attached to the floor-climbing foundation base to close the mast insertion port and to place and support the lower end of the mast. It is composed of a plurality of divided base materials that can be divided by including the mast insertion hole in the dividing surface and that can be inserted and removed from the mast horizontally, and each divided base material has a fixing part to the floor. , and an attachment part for the auxiliary base material.

<Function> According to the configuration of the crane climbing method of the invention according to claim 1, after climbing the crane body by rope climbing using climbing blocks, the construction work for a predetermined floor is performed by climbing the floor-climbing foundation. The base is attached and fixed to the floor, and the mast on the lower floor is removed by winding up the hanging wire through the mast insertion hole of the floor climbing foundation base, and the initial foundation base is removed to start floor climbing. Do these rope climbing and floor-
You can climb the crane by repeating the climbing.

According to the structure of the foundation base of the invention according to claim (2), the divided base material is fitted and inserted horizontally into the mast after rope climbing at a predetermined floor. A foundation base for floor climbing is provided by fixing each to the floor in a state where a mast insertion hole is formed, and the state is changed to a state for performing floor climbing.After that, an auxiliary base material is attached to the foundation base for floor climbing. The mast insertion port is closed, the lower end of the mast is placed and supported, and the state can be switched to a state where rope climbing is performed.

<Example> Next, an example of the present invention will be described in detail based on the drawings.

The crane climbing method will be explained in order based on FIG.

An initial foundation base 1 is fixed at a predetermined location on the ground or third floor F3 where a building is to be constructed, and the crane main body 2 is held on the initial foundation base 1, and the swivel base 3 of the crane main body 2 is supported. The lower end of the mast 5 with the climbing block 4 attached to the upper end is fixed to the initial foundation base 1 by passing through the section, and then the end of the hanging wire 6 of the crane main body 2 is connected through the climbing block 4. After separating the crane body 2 from the initial foundation base l, the crane body 2 is raised by using the climbing block 4 as a reaction force by winding up the hanging wire 6, and, for example, the crane body 2 is raised to the second floor. The crane main body 2 is supported by the mast 5 at the location where the crane body 2 has been raised, and the fourth floor F4 and the fifth floor F5 are constructed.

Repeat this process to climb the crane body 2 as appropriate, and sequentially climb the 6th floor - F6 and the 7th floor - F.
7 and rooftop floor - Build the RF [Figure 1 (a)
reference].

After climbing a predetermined floor as described above, as shown in FIG.
Attach and secure the base 8 to the climbing foundation.

Next, as shown in FIGS. 1(b) and 1(c), using the climbing block 4, a hanging wire 6 is attached.
The crane main body 2 is lowered by gradually loosening while providing a tensile support force, and the crane main body 2 is attached to and fixedly held on the floor-climbing foundation base 8.

Thereafter, as shown in FIG. By winding up the wire 6, it is transported together with the climbing block 4 to a desired location and removed.

After that, attach the mast removal jig 9 to the upper end of the remaining topmost mast 5, and remove the mast removal jig 9.
At the same time, the uppermost mast 5 is separated from the lower mast 5, and the hanging wire 6 is wound up to pass through the mast insertion lower and be pulled up onto the crane main body 2 and placed at the desired location. Transport and remove. This mast removal process is repeated, and as shown in FIG. While connecting, it is separated from the initial foundation base 1, and by winding up the hanging wire 6, it is pulled up onto the crane body 2 through the mast insertion lower, and transported to a desired location and removed. Thereafter, the initial foundation base 1 is separated from the floor F3 and removed.

Thereafter, as shown in FIG. 1(f), the auxiliary base material 10 is attached to the floor-climbing foundation base 8, and the mast insertion lower is closed.

Next, as shown in FIG. 1(g), the mast 5 with the climbing block 4 attached to the upper end is attached to the auxiliary base material 1.
0 suspended above the floor-climbing base 8
Attach and fix it.

Thereafter, as shown in FIG. 1(h), the end of the hanging wire 6 is connected to the crane body 2 via the climbing block 4, and the climbing block 4 is lifted up by winding up the hanging wire 6. Use the force to climb the crane body 2.

Next, after separating the climbing block 4 from the upper end of the mast 5, as shown in FIG. 1(i), the climbing block 4 is attached to the upper end of another mast 5, and then,
It is suspended and connected onto the previous mast 5, and then the end of the hanging wire 6 is connected to the crane body 2 in the same manner as in the above case, and the crane body 2 is climbed.

In the manner described above, the crane body 2 is climbed to construct a building using a combination of rope climbing and floor climbing.

Next, a description will be given of the climbing block 4 used to carry out the crane climbing method described above, and the foundation base consisting of the floor-climbing foundation base 8 and the auxiliary base material 10.

As shown in the partially omitted and partially cutaway side view of FIG. 2, the climbing block 4 is provided with a pair of top sheaves 12° 12 at the upper end of the climbing bronc body 11, and a pair of top sheaves 12° 12 at the lower part for attachment to the mast 5. The flange 13 is integrally connected, and a climbing rope 16 having a detour sheep 14 and a connecting hook 15 is wound around the top sheep 12.12.

With this configuration, after the climbing block 4 is attached to the upper end of the mast 5, the rope connecting member 18 is provided on the guide frame 17 of the support portion of the swivel base 3 of the crane body 2 so as to be vertically displaceable, and A sheep 14 is attached, and a climbing rope 16 is attached.
The climbing rope 16 is wound around the top sheave 12, 12 and the detour sheep 14, and one end of the climbing rope 16 is connected to the rope connecting member 18, and the hook of the hanging wire 6 is connected to the other end. By winding up the hanging wire 6, the guide frame 17 can be raised together with the crane body 2, using the mast 5 and the climbing block 4 as reaction force points.

The guide frame 17 is rotatably provided with a descending prevention member 20 having a claw 19 that presses against the outer circumferential surface of the mast 5 by biting into it to prevent the guide frame 17 from descending. It can be displaced to

A rope connecting member 18 is interlocked and connected to the descent prevention member 20, and a compression coil spring 21 as a biasing mechanism is attached to the shaft member 18a of the rope connecting member 18.
In the natural state, the lowering prevention member 20 is rotated toward the pressure side by the biasing force of the compression coil spring 21, and the claws 19 bite into the outer peripheral surface of the mast 5, so that the lowering of the guide frame 17 can be prevented.

When climbing, the lifting force resists the biasing force of the compression coil spring 21, and the descent prevention member 20 is displaced to the non-pressing position to enable climbing. However, if the hanging wire 6 breaks, As described above, the lowering prevention member 20 is displaced to the pressure contact position by the biasing force of the compression coil spring 21, and the pawl 19 is bitten into the outer peripheral surface of the mast 5, thereby preventing the guide frame 17 from lowering. ing.

As shown in the plan view of FIG. 3, the floor-climbing foundation base 8 can be divided by including the mast insertion lower, through which the mast 5 is inserted, in the dividing plane, and can be inserted into and removed from the mast 5 in the horizontal direction. It is composed of four possible split base materials 8a... each flange 22 of the split base material 8a...
They are connected to each other with bolts (not shown) to be integrated.

Each of the divided base members 8a is provided with a fixing leg portion 23 made of square steel as a fixing portion to the floor. , is configured to be fixed to anchor bolts 24, 24 provided on the floor via a backing plate 25 and tightening nuts 26, 26.

With these configurations, as shown in the partially cutaway side view of FIG.
A floor-climbing foundation base 8 having a lower mast insertion lower part in the center is formed by inserting and connecting each other so as to fit on the outside and fixing it to the floor, as shown in the exploded perspective view of Fig. 6. The mast 5 with a mast removal jig 9 attached to its upper end can be removed by pulling up.

In the figure, 27.27 indicates adjacent predetermined divided base materials 8a,
A reinforcing material that connects Ba to each other is shown.

Furthermore, each of the divided base materials 8a is provided with a mounting portion 28 on which the auxiliary base material 10 is placed and attached by bolts (not shown), as shown in the side view of FIG. .

As shown in the plan view of FIG. 8 and the partially cutaway side view of FIG. It is constructed by integrally connecting an annular small-diameter plate 30 on which the lower end is placed via a cylindrical body 31 and reinforcing ribs 32.

Thereby, after the masts 5 on the lower floor are lifted up and removed, the masts 5 can be inserted and attached from the horizontal direction to the floor-climbing foundation base 8, and the suspended masts 5 can be placed and held.

The crane climbing method of the present invention can also be applied to constructing a multi-story building by repeating the above-described lobe climbing and floor climbing.

Further, in the above embodiment, the floor-climbing foundation base 8 constituting the foundation base for floor-climbing is composed of four divided base materials 8a, but for example, two or three divided base members 8a... It may also be composed of individuals.

<Effects of the Invention> According to the crane climbing method of the invention as claimed in claim 1, lobe climbing can be performed by simply using a climbing block and by using the hanging wire of the crane body itself, and moreover, the rope climbing can be performed by simply using a climbing block. By simply using the climbing foundation base and auxiliary base material, the mast on the lower floor can be removed using the suspension wire of the crane itself, and the initial foundation base can be removed, so it is recommended to use a hydraulic jack. Overall, the crane can be climbed with a simple configuration, and
By performing floor climbing as appropriate, the overall number of masts used can be reduced, and
The crane can be easily dismantled after construction is completed.
In addition, finishing work on the lower floor, such as early closing of damaged openings, can be carried out at an early stage, improving workability and reducing construction costs.

Further, according to the basic base of the invention according to claim (2), each of the divided base members can be fitted onto and removed from the mast from the horizontal direction to fix or unfix to the floor. Since the foundation base can be installed and removed, there is no need to separately hold the crane body on another support member, remove the mast, and then install the floor-climbing foundation base. By attaching or removing an auxiliary base material to the floor-climbing foundation base, it is possible to switch between lobe climbing and floor-climbing, and the foundation base is useful for easily carrying out the crane climbing method described above. can now be provided.

[Brief explanation of the drawing]

The drawings show an embodiment of the crane climbing method and the foundation base used therein according to the present invention, FIG. 1 is an overall schematic side view illustrating the crane climbing method, and FIG. 2 is a part of a climbing block. Partially cutaway side view, Fig. 3 is a plan view of the foundation base for floor climbing, and Fig. 4 is for floor climbing! ,W
Figure 5 is a cross-sectional view of the main parts showing the state of fixation of the base to the floor.
FIG. 6 is a partially cutaway side view showing the state in which the mast removal jig is fixed, and FIG. 7 is an exploded perspective view showing the state in which the mast removal jig is attached.
The figure is a side view showing the attached state of the auxiliary base material.
The figure is a plan view of the auxiliary base material, and FIG. 9 is a partially cutaway side view of the auxiliary base material. 1... Initial foundation base 2... Crane body 4... Climbing block 5... Mast 6... Hanging wire 7... Mast insertion port 8... Floor-climbing basic base 8a...
Divided base material 10...Auxiliary base material 23...Fixing leg part 2B as a fixing part...Auxiliary base material attachment part

Claims (2)

[Claims] (1) Attach the crane body to the initial foundation base, pass through the crane body, and fix the lower end of the mast with a climbing block attached to the upper end to the initial foundation base, and then suspend the crane body. The end of the hanging wire is connected to the crane body via the climbing block, the crane body is separated from the initial foundation base, and then the climbing block is subjected to a reaction force by winding up the hanging wire. After climbing the crane body to a predetermined floor by repeating these steps, a foundation base for floor climbing, which has a mast insertion hole in the center with a diameter larger than the mast diameter, is attached and fixed to the floor near the crane body. Then, the crane main body is lowered and held on the floor climbing foundation base, and then the hanging wire is connected to the uppermost mast and the uppermost mast is separated from the lower mast. , by winding up the hanging wire, removing it through the mast insertion hole, repeating the mast removal process, separating it from the initial foundation base and scattering the lowest mast, and then removing the initial foundation base. At the same time as separating and removing from the floor, attaching an auxiliary base material for closing the mast insertion hole to the floor climbing foundation base, and then suspending the mast with a climbing block attached to the upper end onto the auxiliary base material. A climbing method for a crane, characterized in that the crane body is mounted and fixed on the floor climbing foundation base, and the crane body is raised by using the climbing block as a reaction force by winding up the hanging wire. (2) A floor climbing foundation base having a mast insertion port through which a mast is inserted; and an auxiliary base material that is attached to the floor climbing foundation base to close the mast insertion port and to place and support the lower end of the mast. The floor climbing foundation base is composed of a plurality of divided base materials that can be divided by including the mast insertion hole in the dividing surface and that can be fitted onto and removed from the mast in the horizontal direction, and 2. The foundation base used in the crane climbing method according to claim 1, wherein each divided base member is provided with a fixing portion to the floor and an attachment portion for the auxiliary base material.