JPH06227787A - Building method for heavy weight frame - Google Patents

Abstract

PURPOSE:To excellently build a frame only by a man power at a limited place where a crane is impossible to use. CONSTITUTION:An auxiliary columns 13 having a chain block mounted thereto and being low in height is erected in the vicinity of the installation position of a main column 6. A beam material 2 and H-steels 5 and 5 are first lifted to a given position by means of the chain block 14 and a first main material 6A is coupled to the lower part of the H-Steel 5. Thereafter, the chain block 14 is hooked to the lower end of the first column material 6A, the lower end of the first column material 6A is lifted to a given height by means of the chain block 14 and coupled to a second column material 6B, and the main materials are stacked, in order, to a given height.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a heavy pedestal constructed for lifting heavy objects.

[0002]

2. Description of the Related Art Conventionally, a mobile crane such as a truck crane is generally used to lift a heavy load at a place other than a place where facilities such as a predetermined crane already exist in advance. In places where it is not possible to enter, build a gate-shaped platform above the heavy objects,
It is necessary to suspend a chain block or the like on this frame to lift a heavy object to a predetermined height. However, in this case, the pedestal requires a considerable height for work,
Moreover, rather than lifting a heavy object, it is necessary to construct a gantry with components that are considerably heavy in terms of strength, and it is not possible to construct a pedestal by lifting the gantry components upwards only by human power. There was a problem that it was impossible to lift.

[0003]

SUMMARY OF THE INVENTION The present invention has been devised in view of the above-mentioned problems of the prior art, and an object thereof is not to provide a construction method capable of satisfactorily constructing a gantry with only human power. Constructing a platform for lifting heavy objects, which comprises two or more main pillars that are vertically installed by vertically connecting two or more pillar materials, and a beam material that is horizontally installed above the main pillars. In the construction method, the auxiliary pillar is provided in the vicinity of the standing position of the main pillar, the auxiliary pillar being considerably lower than the main pillar provided with a chain block or the like, and the beam member is first attached by the chain block or the like of the auxiliary pillar. After lifting to a predetermined position and connecting the first pillar material constituting the main pillar to the lower part of the beam material, the chain block etc.
The lower end of the first pillar is lifted to a predetermined height over the lower end of the pillar, the upper end of the second pillar is connected to the lower end of the first pillar, and the pillars are sequentially stacked to a predetermined height. Is.

[0004]

[Operation] When constructing the gantry, first an auxiliary column having a height considerably lower than that of the main column is erected near the standing position of the main column, and a chain block or the like is attached to the auxiliary column. First, lift the beam to a predetermined height with a chain block, etc., connect the first pillar that constitutes the main pillar to the lower part of this beam, and then replace the chain block with the lower end of the first pillar. , Again, lift up the first pillar member connected to the beam member by a chain block or the like to a predetermined height,
Furthermore, the second pillar is connected to the lower end of the first pillar, and the main pillar can be made to have a predetermined height by the first pillar and the second pillar, and the lower end of the second pillar is further formed. If a chain block or the like is applied to the second pillar, the lower end of the second pillar can be lifted to a predetermined height, and the third pillar can be connected to the lower end of the second pillar to obtain a desired height. The main pillar of is erected upright with a low auxiliary pillar without using a crane,
It is possible to construct a pedestal of a predetermined height in a narrow place with only human power. That is, when the auxiliary column is higher than the beam material, the auxiliary column also becomes a heavy weight member in terms of strength, and thus it is impossible to stand the auxiliary column in a predetermined position by human power alone. Since the height of the column is low, it is possible to work the auxiliary column upright at a predetermined position only by human power.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front configuration diagram of a gantry for lifting a heavy load, and FIG. 2 is a plan configuration diagram. The gantry 1 includes a beam member 2 horizontally provided at an upper end, a pair of H steels 5 and 5 arranged orthogonally on both end sides of the beam member 2, and a pair of H steel members 5 and 5 on both end sides thereof. It consists of four main pillars 6, 6, 6, 6 that are erected,
The chain blocks 4, 4 are suspended on the beam member 2 by using the suspension fittings 3 as shown in FIG.
4, the water turbine 8 for stirring and aeration provided in the septic tank 7 can be lifted upward, and the bearings 10, 10 of the rotating shaft 9 of the water turbine 8 can be regularly replaced. .

Since the septic tank 7 is generally installed in an extremely narrow place, the pedestal 1 constructed above the septic tank 7 also needs to be constructed in a narrow place, and when the crane or the like cannot be used. Since there are many cases, it is constructed by the following method. That is, four pedestal bases 11 as shown in FIG. 3 are fixed to the upper edge of the septic tank 7 in advance.
The pedestal base 11 has a large number of anchor bolt holes 12, 1
2, 12 are formed, and each anchor bolt hole 1
Anchor bolts can be inserted into 2 to be fixed to the upper peripheral edge of the septic tank 7, and a plurality of fixing bolts 11a for fixing the lower end of the main pillar 6 to the pedestal base 11 are provided upright. A plurality of fixing bolts 11a for fixing the lower end portion of the pillar 13 are provided upright.

Such a pedestal base 11 is fixed at four places as shown in FIG. 2, and auxiliary columns 13, 13, 13, 13 are erected on each pedestal base 11 via fixing bolts 11a. Each of the auxiliary columns 13 has a low height, and the chain block 1 is attached to the upper plate portion 13a at the upper end thereof.
4 are attached respectively, and in order to prevent the auxiliary column 13 from falling down, the auxiliary column 13 is supported by the fixing wire 15.

In this state, as shown in FIG. 2, first, a pair of H steels 5 and 5 are placed along the side edges of the septic tank 7, and the beam 2 is placed orthogonally thereabove, and the beam 2 2 and a pair of H steels 5 and 5 are fixed with bolts. Each auxiliary pillar 1 in this state
The chain blocks 14 of 3, 13, 13, 13 are hung on the ends of the H steels 5, 5 to form the chain blocks 14, 1
4, 14, 14 are pulled up, and the H steels 5, 5 integrated with the beam 2 are raised to a predetermined height. In a state of being lifted up to a predetermined height, the first pillar members 6A constituting the main pillars 6 are connected to the lower surfaces of both ends of the H steels 5 and 5 with bolts. It should be noted that a wire 16 can be laid between the upper end of the auxiliary column 13 and the H steel 5 in order to prevent sway, and the chain blocks 4 and 4 attached to the beam member 2 have such a main column 6 It can be installed in advance at a low height.

In this way, the beam 2 and the H steels 5, 5 are
And, after the first pillar members 6A, 6A, 6A, 6A at the lower end thereof are integrated, they are once lowered, and the respective chain blocks 14, 14, 14 are again fixed to the first pillar members 6A, 6A, 6A.
Hook onto the flange portion F formed at the lower end of A, 6A, and in this state, each chain block 14, 14, 14,
14 can be pulled up to lift the lower end portion of the first pillar member 6A to a predetermined height, and in that state, each first pillar member 6A,
The second pillar members 6B, 6B, 6B, 6B are connected by bolts to the lower ends of 6A, 6A, 6A via a flange F.

As a result, the height of the main pillar 6 is the first pillar material 6A.
And the height of the second pillar member 6B, and after lowering it once, hook each chain block 14, 14, 14 on the flange F at the lower end of the second pillar member 6B, 6B, 6B, and , 14, 14 can be lifted to the predetermined height position of the second pillar members 6B, 6B, 6B, and in this state, the third pillar member 6C is attached to the lower end of each second pillar member 6B. By connecting with bolts, the height of the main pillar 6 can be further increased. In addition, the length of the main pillar can be extended by connecting the fourth pillar members 6D, 6D, 6D to the lower ends of the respective main pillars 6 by a similar method, if necessary, and further, if necessary. 5th and 6th downward
The height of the main pillar 6 can be increased by connecting the pillar materials.

In this way, the gantry 1 can be satisfactorily constructed in a narrow field with only human power, and the chain blocks 4 and 4 attached to the constructed pedestal make it possible to construct the water turbine 8
Can be lifted to a good height and the bearing 10 can be replaced. In addition, although the case where the water turbine 8 of the septic tank 7 is lifted is illustrated in this example, the same method can be applied to a pedestal for lifting other heavy objects other than the water turbine.
A pedestal can be constructed at a good height through a low-height auxiliary column 13 in a narrow place, and it is not necessary to erect a high-height auxiliary column, which is heavy, and the pedestal can be constructed manually. Can be done easily and satisfactorily.

[0012]

The present invention comprises two or more main pillars which are vertically arranged by vertically connecting two or more pillar materials, and a beam material which is provided horizontally above the main pillars. In the construction method for constructing a gantry for lifting heavy objects, an auxiliary column that is considerably lower than the main column equipped with a chain block and the like is erected near the erected position of the main column, and the auxiliary column of the auxiliary column is First, the beam member is lifted to a predetermined position by a chain block or the like, and the first pillar member that constitutes the main pillar is connected to the lower portion of the beam member, and then the chain block or the like is hung on the lower end of the first pillar member to Since the lower end of the first pillar member is lifted to a predetermined height, the upper end of the second pillar member is connected to the lower end of the first pillar member, and the pillar members are sequentially stacked up to a predetermined height, the auxiliary member having a low height is assisted. The lower end of the pillar material that composes the main pillar is moved to a specified height by the chain block installed on the pillar. The height of the main pillar can be increased by connecting it to the lower part of the pillar, and the height of the main pillar can be increased. There is no need to erect high auxiliary columns, and the construction of the gantry has the effect that it can be done by human power alone.

[Brief description of drawings]

FIG. 1 is a front view of a pedestal.

FIG. 2 is a plan configuration diagram showing an arrangement state of a gantry.

FIG. 3 is a plan view of a gantry base.

FIG. 4 is a front view of a hanging metal fitting.

[Explanation of symbols]

 1 frame 2 beam material 3 suspension metal fittings 4 chain block 5 H steel 6 main pillar 6A 1st pillar material 6B 2nd pillar material 6C 3rd pillar material 11 frame base 13 auxiliary pillar 14 chain block 15, 16 wire F flange

Claims (1)

[Claims] 1. A heavy load lifting machine comprising two or more main pillars which are vertically installed by connecting two or more pillar materials in a vertical direction and a beam material which is horizontally installed above the main pillars. A construction method of constructing a pedestal for use, in which an auxiliary column that is considerably lower than the main column equipped with a chain block or the like is erected near the erected position of the main column, and the chain block or the like of the auxiliary column is used. First, the beam member is lifted up to a predetermined position, the first column member that constitutes the main column is connected to the lower portion of the beam member, and then the chain block or the like is hung on the lower end of the first column member to form the first column member. Is lifted to a predetermined height, the upper end of the second pillar is connected to the lower end of the first pillar, and the pillars are sequentially stacked to a predetermined height.