JPH0321777A - Construction method of iron-frame pillar - Google Patents

Abstract

PURPOSE:To construct an iron-frame pillar efficiently in a short period by lifting up a tube-form iron-frame pillar body by using a basic pillar erected on the ground as a guide, adding the next iron-frame pillar body below the first pillar body, and constructing the iron-frame pillar in order. CONSTITUTION:A tube-form upper iron-frame pillar body 12 to be the top iron- frame pillar body is loaded on the upper stoppers 11a and 11b at the top end of a base pillar 2, and the second iron frame pillar bodies 13a and 13b added to the lower end of the upper iron-frame pillar body 12 are incorporated between the upper iron-frame pillar body 12 and a lower stopper 10 covering the base pillar 2. The iron-frame pillar bodies 13a and 13b are welded or bolted to connect to the lower end of the upper iron-frame pillar body 12 to make into the second iron-frame pillar body 13. Then, a hook 9 is fixed to the lower end, and a winch 6 is driven to lift a wire 7 so as to make the added iron-frame pillar bodies 12 and 13 incorporated. They are lifted up further to add the next iron frame pillar body in the same procedure, and an iron-frame pillar is constructed.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for constructing a steel frame used when burying a tower-shaped building such as a multi-story parking lot.

[Prior Art] In order to construct a tower-like building such as a multi-story parking lot, a large crane is used to construct a building structure that forms the frame structure of the building from steel columns and structural materials such as beams and trusses. Conventionally, it has been common practice to erect a steel column using a large work scaffold, attach the structural materials to the steel column using a large work scaffold, and proceed with the work from the bottom upwards. There is.

[Problems to be Solved by the Invention] However, in the case of the conventional building structure construction method described above, it is necessary to lift the steel column using a large crane, and there is There is a safety issue as there is a risk of pillars collapsing if they are affected by such things. However, there was a problem with the long construction period.

Therefore, the present invention provides a method for constructing a steel frame column that can be safely constructed without using a large crane and without being affected by wind, etc., and allows construction of a structure such as a building structure. The aim is to enable efficient construction in a short period of time without the use of scaffolding.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a method for measuring the length of a cylindrical steel column with a required length using a foundation column erected on the ground as a guide. Lift it up to the same height as the
A two-piece steel column is placed between the lifted steel column and the ground so as to embrace the foundation column, and then the two-piece steel column is joined to the lifted steel column. , the two υ1 steel frames 4I are joined and joined together, and then the added steel column body is lifted by approximately that height, and the same work is repeated thereafter to construct a steel frame column of a specified height. This is the construction method of the steel frame company.

Further, lifting of the steel frame column may be carried out by winding up a wire rope whose tip is secured to the steel frame column by passing it through a shib on the foundation column.

Furthermore, at least two foundation columns may be erected on the ground, and a steel frame structure constructed using at least two steel frame columns may be added to the steel structure by lifting it up using the foundation columns as a guide.

[Operation] The cylindrical steel column is lifted up using the foundation column erected on the ground as a guide, the next steel column is added below it, and then it is lifted up again. Since it is guided by the foundation columns when it is lifted up, it can be lifted up safely without being affected by wind, etc., and the steel column body can be built to the required height. In addition, by adopting it in the construction work of structures such as building structures, and lifting up the structure constructed using at least two steel columns along at least two foundation columns, Structures can be constructed efficiently without using scaffolding.

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

Figures 1 to 7 show the working procedure according to an embodiment of the steel frame construction method of the present invention. , Lift up a hollow foundation column with a square or round cross section erected on the ground along the outside, and add another steel column below it to move the taller steel column from top to bottom. It is something that will be built.

To explain specifically, first, as shown in Figure 1,
2 foundation columns of the required height made of square or round pipes.
is erected using anchor bolts 3, a guide sheave 4a is installed at the lower end of the foundation pillar 2, a guide sheave 4b is installed at the top of the foundation pillar 2, and a winch is installed on the ground 1. 6 of the wire row 17 is introduced into the foundation pillar 2 through the hole 8 drilled in the lower end of the foundation pillar 2,
After the guide sheaves 4a and 4b are hung in this order, they are led out of the foundation pillar 2 and positioned near the ground 1, and a hook 9 is attached to the tip.

Further, at the lower end of the foundation column 2, a lower stopper 10 is provided on the opposite side above the position of the hole 8, and an upper stopper 10 is provided at the opposite position on the upper end.
llb is attached so that it can be attached and detached by inserting and removing the pin 5.

In such a state, in order to construct a tower-shaped steel column, a large number of steel frame columns each having a required length are added and raised using the foundation column 2 as a guide. First, as shown in FIG. 2, the cylindrical upper steel column 12, which will be the top steel column when constructing the steel frame building, has an inner diameter larger than the outer diameter of the foundation column 2. Place it on the upper stoppers lla and llb attached to the upper end of 2. Next, a lower tier (second tier) column consisting of radially split steel column pieces 13a and 13b, which will become a second tier of steel columns to be added to the lower end of the upper steel column 2, is constructed. The frame column body 13 is assembled between the upper steel frame column body 12 and the lower stopper 10 from the state shown in FIG. 3 as shown in FIG. 4, so as to wrap around the foundation column 2. The backs of upper stoppers lla and llb attached to 2, for example, lla, are removed and the upper steel column body 12 is left supported by the other upper stopper 11b,
Next, one steel column piece 13a of the steel column body 13 prepared so as to be placed on the side from which the upper stopper lla has been removed is carried onto the lower stopper 10, and the upper end of the steel column piece 13a and the upper steel column The lower end of the body 12 is joined by welding or bolting. By this connection, the upper steel column 12 can be supported on the lower stopper 10 via the steel column piece 13a, so next, the other upper stopper 1lb is removed and the other steel column is placed in that position. The piece 13b is brought in and placed on the lower stopper 10, and in the same way, the upper end of the steel column piece 13b and the lower end of the upper steel column body 12 are joined, and then the steel frame pieces 13a and 13b are joined. As shown in FIG. 4, the second stage steel column body 13 is
The steel column 13 of the second stage is added to the upper steel column 12.

Next, the hook 9 at the tip of the wire row 77 hanging down to the ground level 1 is locked to the lower end of the added second stage steel column 13, and as shown in FIG. 5, the winch 6 is wound and driven. By raising the hook 9 via the wire row 17, the steel column 13 is raised using the foundation column 2 as a guide, and the joined steel columns 12 and 13 are lifted up as one. When the lower end of the second stage steel column 13 is lifted up to a position higher than the upper stopper 11a, 11b attachment position of the foundation column 2, one of the upper stoppers 11b is attached to the foundation column 2 at this position. The lower end of the steel column 13 is lowered and supported on the upper stopper 11b, and the hook 9 is removed from the lower end of the steel column 13 and lowered again to near the ground 1.

Thereafter, as shown in Fig. 6, the next stage of the steel column body 13 consisting of the two pieces of steel column pieces 13a and 13b is prepared, and the steel column pieces 13a and 13b are successively placed in the upper stage using the same procedure as described above. The lower steel column 13 is joined to the lower steel column 13 and the lower steel column 13 is lifted up, and a predetermined number of steps are sequentially added to the steel column 13 in the longitudinal direction.
As shown in the figure, steel columns 14 of a predetermined height are constructed on the ground 1 from the top to the bottom, and finally, the lowest steel column body 13 is assembled around the foundation column 2 at the bottom, and the foundation A steel frame column 14 is constructed while leaving column 2.

In this way, in the present invention, the steel frame columns 13 are sequentially lifted up and added using the foundation columns 2 erected on the ground 1 as a guide, so the steel frames can be safely installed without being affected by wind etc. Pillars 14 can be constructed.

Therefore, when the method of the present invention is employed in the work of constructing the building structure of a tower-like building, it becomes possible to eliminate the need for large cranes and large-scale work scaffolding, and to shorten the construction period.

The outline of the work procedure when constructing the building structure of a tower-shaped building by employing the method of the present invention is as shown in FIGS. 8 to 12. That is, first, as shown in FIG. 8, at least two foundation columns 2 having upper and lower stoppers Ha, Ilb and 10 are erected on the ground 1 in the same manner as described above, and then, as shown in FIG. An upper steel structure 16 is constructed by attaching structural members 15 such as beams and trusses to upper steel columns 12 in a number corresponding to the number of foundation columns 2.
is lifted by a crane, the lower end of the steel column 12 is fitted onto the foundation column 2, and supported on the upper stoppers 11a and fib. Next, as shown in FIG. 10, steel column pieces 13a and 13b having a two-piece structure are respectively arranged on the two parts of each foundation column in the same manner as explained in FIGS. 3 and 4 above, and the steel frame After joining the steel frame pieces 13a and 13b one by one to the lower end of the upper steel column body 12 of the upper steel frame structure 16 located at the upper level, and also joining the steel frame pieces 13a and 13b to each other, as shown in FIG. <Second tier> Structural considerations A15 are also attached between the steel frame columns 13 to construct the second tier steel structure 17. Thereafter, the integrated steel structures 16 and 17 are lifted up one level in the same manner as in the case of FIG. By sequentially performing the lift-up work and the lift-up work, a building structure 18 of a predetermined height above the ground 1 is constructed as shown in FIG. 12.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and means for lifting up the steel column bodies 12, 13 may include, for example, other than the winch 6.
that jacks, cylinders, etc. may be used;
Further, in the embodiment, a case is shown in which the method of the present invention is applied to the work of constructing the building structure 18 of a tower-like building, and each stage of the steel structure 17 is added to the upper steel structure 16 to lift it up. However, it can also be used when adding parts while lifting up other structures.Furthermore, in each of the above embodiments, the lower stopper 10 is fixed to the lower end of the foundation column 2, and the parting material is placed on top of the lower stopper 10. The case where the steel frame column pieces 13a and 13b with the two-piece structure to be added are supported by turning them is shown, but instead of this, it is possible to install a fixed stand on the ground and use the top surface of this fixed stand as a stopper. and when the lowermost steel column 13 is installed, the steel column 13 may be fixed to a fixing base with bolts or the like;
It goes without saying that various other changes may be made within the scope of the invention.

[Effect of the invention 1 As described above, according to the steel column construction method of the present invention, after lifting up a foundation column with a steel column body erected on the ground as a guide, the next stage steel column is attached to the lower end of the foundation column. After adding the body, lift up the added lower steel frame column in the same way, and repeat the same operation from now on so that the steel frame column is guarded from the top to the bottom, so that wind etc. It is possible to safely construct a steel frame without being affected by
Even if it is used in the construction work of structures such as tower-like building structures, it can be assembled on the ground and raised, and can be constructed efficiently and in a short period of time without having to work at heights using scaffolding. It exhibits excellent effects such as being able to construct structures in between.

[Brief explanation of the drawing]

Figures 1 to 7 are schematic diagrams of work procedures showing one embodiment of the method for constructing a steel frame building of the present invention, and Figures 8 to 12 are diagrams for constructing a tower-shaped building using the method of the present invention. FIG. 2 is a schematic diagram of a work procedure illustrating an example of constructing an @ structure. 1... Ground, 2... Foundation pillar, 4a, 4b... Sheave, 6... Winch, 7... Wire mouth, 10...
... Lower stopper, lla, 1lb... Upper stopper, 12... Upper steel column body, 13... Lower steel column body, 13a, 13b... Steel column piece, 14... Steel frame,
15... Structural material, 16... Upper steel structure, 17.
... Lower steel structure, 18... Kenma structure. Figure 1 Figure 2 Figure 3 Figure 4 Figure 7

Claims (3)

[Claims] (1) Lift a cylindrical steel column of the required length to a height equal to the length of the steel column using a foundation column erected on the ground as a guide, and then connect the lifted steel column to the ground. After arranging the two-split steel column so as to hold the foundation column between them, the two-split steel column is joined to the lifted steel column, and the two-split steel column itself is joined. A method for constructing a steel frame column, which comprises: adding a steel frame column to a predetermined height, and then lifting the added steel column body by approximately the same height, and thereafter repeating the same operation to construct a steel column of a predetermined height. (2) The method for constructing a steel frame column according to claim (1), wherein the steel frame column is lifted by winding up a wire rope whose tip is secured to the steel frame column by passing it through a sheave on the foundation column. (3) The method according to claim (1), wherein at least two foundation columns are erected on the ground, and the steel frame structure constructed using at least two steel columns is lifted up using the foundation columns as a guide and then added to the subsequent structure. How to construct a steel column.