JPH10311045A - Surface table construction method and device for erecting post - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adjust the reference plane level of a surface table without any need for a worker to enter within a steel pipe pile by suspending a surface table member within the pile via a metal fixture mounted on a steel pipe pile head, adjusting the roof positional level of the surface table member with a vertically movable jig and then fixing the surface table member within the steel pipe pile. SOLUTION: A surface table member 1 for forming the surface table plane of a post has channel steels 3 respectively welded to the forward ends of angle steel members 2 assembled like a cross, and the roof as the upper surface of the channel steels 3 is used as a reference plane for erecting the post. For forming a surface table, a rod material 6 is fitted to a sheet pile catcher 4 on the upper surface of the channel steel 3, and the surface table member 1 is suspended within a steel pipe pile 5. Also, the rod member 6 is attached to a metal fixture 7 mounted on the head of the steel pipe pile 5. A level adjustment nut 8 attached to each metal fixture 7 is rotated for vertically moving the rod material 6 screwed to the nut 8 and the level of a surface table installation position is thereby adjusted. Thereafter, concrete is placed in the steel pipe pile 5, thereby fixing the surface table member 1 within the steel pipe pile 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a civil engineering construction structure in which a column such as a steel pipe column or a steel column is inserted into a steel pipe pile, concrete is cast, and the steel pipe pile and the steel pipe column are joined and integrated. For example, the present invention relates to a method and an apparatus for constructing a surface plate when a pillar as a foundation pile of a viaduct, an elevated railway, a building, or the like is built.

[0002]

2. Description of the Related Art As a method of joining a steel pipe foundation pile and a column of a civil engineering building structure, a reinforced concrete foundation is provided on the steel pipe foundation pile, and the column base of the steel pipe column is fixed on this foundation with anchor bolts. It is a common construction method to fill concrete into steel pipe columns as necessary. However, recently
As a method of joining the steel pipe foundation pile and the column, the reinforced concrete foundation provided on the steel pipe foundation pile is omitted, the steel pipe pillar is inserted into the steel pipe pile and filled with concrete, and the steel pipe pile and the steel pipe column are joined and integrated, and the steel pipe foundation pile is joined. It is necessary to join the column and the pillar.

[0003] As a known technique relating to a construction method of inserting and joining a steel pipe column into a steel pipe pile, for example, Japanese Unexamined Patent Publication No.
No. 86630 proposes a joint structure between a concrete-filled steel pipe pile and a concrete-filled steel pipe column. An anchor bolt is embedded in the head of a concrete-filled steel pipe pile, and a leg of the steel pipe column is inserted into the steel pipe pile. It is disclosed that concrete is cast and joined and integrated after fixing with anchor bolts.

However, with an anchor bolt embedded in concrete in a steel pipe pile, since the horizontal position can be adjusted, but the vertical level cannot be adjusted, a mortar, a thick plate or the like is used to separately install a reference surface. Although it is necessary to form a platen that becomes, the work space in the steel pipe pile is small,
Difficult to construct a surface plate, and when trying to secure a work space, it is necessary to increase the diameter of the steel pipe pile, although it is not necessary to use a large-diameter steel pipe pile by design, which is a problem of poor economic efficiency. Occurs.

[0005] Also, Japanese Patent Application Laid-Open No. 3-64008 discloses that
It is described that the lower part of the steel pipe of the pillar is inserted into the upper part of the steel pipe of the pile and the two are connected via concrete as the joint structure of the pillar and the pile of the building structure. There is no disclosure of any method or apparatus for adjusting the level of the surface plate.

That is, when a pillar such as a steel pipe pillar or a steel frame pillar is inserted into a steel pipe pile and a pillar is built, a construction method and a construction apparatus for forming a surface plate serving as a reference plane for mounting the pillar at a predetermined level are provided. The actual technology has not been circulated so far.

[0007]

SUMMARY OF THE INVENTION Accordingly, the present invention relates to a method of inserting a column such as a steel pipe column or a steel column into a steel pipe pile, fixing the column with concrete, and joining the steel pipe pile and the column to integrate them. It is an object of the present invention to provide a method and an apparatus for constructing a surface plate capable of performing a level adjustment of a reference surface of a surface plate on which a column is to be installed when an operator does not enter a steel pipe pile. is there.

[0008]

SUMMARY OF THE INVENTION According to the present invention, a fixture is mounted on a steel pipe pile head, a platen member is suspended via a bar by the fixture, and the fixture is mounted on the steel pipe pile head. By moving the bar up and down with the level adjuster to adjust the roof position of the surface plate member, a surface plate can be formed in the steel pipe pile to allow the column to be built without workers entering the steel pipe pile. The present invention was completed based on the findings.

The gist of the present invention is as follows.

(1) A platen member in which a steel material such as a grooved steel plate serving as a platen is fixed to the tip of a cross-shaped member such as an angle iron or the like is fixed in the steel pipe pile by a fixing fitting attached to the head of the steel pipe pile. The bar is suspended via the bar, and the bar is moved up and down by the vertical jig for the bar provided on the fixing bracket to adjust the level of the roof of the surface plate member, and then concrete is poured into the steel pipe pile. A method of constructing a surface plate for installing columns, such as steel pipe columns and steel columns, in a steel tube pile, wherein the surface plate is formed by fixing the surface plate members in the steel tube pile.

(2) When concrete is poured into a steel pipe pile and a surface plate member is fixed in the steel pipe pile, when the concrete after casting is in a soft state, the level of the roof position of the surface plate is restored. The method for constructing a surface plate for erection of columns such as steel pipe columns and steel frame columns in the steel pipe pile according to the above (1), wherein adjustment is performed.

(3) An engagement member having a U-shaped cross section that can be fitted to the upper end of the steel pipe pile head, a bolt screwed to one foot of the engagement member, A fixing member consisting of a supporting member extending substantially at a right angle from the other leg and a level adjusting nut rotatably disposed at the center of the supporting member, and a top end of the member assembled in a cross shape A steel pipe comprising: a plate member to which a steel material forming a plate surface is fixed; and a bar member for screwing the plate member with a level adjustment nut of the fixing bracket to suspend the plate member. Surface plate construction equipment for erection of steel pipe columns and steel columns in piles.

(4) The bar for suspending the surface plate member is separated into a threaded bar portion to be screwed into the level adjusting nut of the fixing bracket and a bar portion to be joined to the surface plate member. The platen construction device for erection of columns such as steel tube columns and steel frame columns in the steel tube pile according to the above (3), wherein the column members are rods connected by joints.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a plan view of a platen member in which a channel steel is fixed to the tip of a cross-shaped angle iron.

FIG. 2 is a view showing a state where the platen member is installed in a steel pipe pile.

As shown in FIG. 1, a platen member 1 forming a platen surface of a pillar is formed by a cross-shaped angle-shaped steel member 2 having an L-shaped cross section.
Four channel steels 3 for leveling the surface plate are fixed to the respective front ends of the base plates by welding. The roof serving as the upper surface of the four channel steels serves as a reference surface when the column is installed. And, on the upper surface of the channel steel, a sheet pile catcher 4 or a nut portion for suspending the surface plate member with a bar is provided. Although the angle plate steel and the channel steel are used as the surface plate members, steel materials of any shape such as square steel and hollow steel can be selected and used.

In forming the platen, a platen member for forming a reference surface is inserted into the steel pipe pile 5 as shown in FIG. In order to install the surface plate member in the steel pipe pile, a bar member 6 is attached to the sheet pile catch 4 of the surface plate member, inserted into the steel pipe pile by suspending it, and then the fixing bracket 7 attached to the head of the steel pipe pile. A bar member 6 suspending the platen member 1 is attached to the table. Then, a thread is cut on the upper surface of the bar, and the bar is engaged with a rotatable level adjustment nut 8 provided on the fixing bracket and is suspended from the fixing bracket.

The fixing member 7 is provided with an engagement member 9 having a U-shaped cross section which can be fitted to the upper edge of the steel pipe pile head.
One foot of the U-shaped engaging member is provided with a threaded tightening bolt 10, and when the bolt is tightened, the bolt tip tightens the outer surface of the steel pipe pile head, thereby fixing the steel pipe pile head to the steel pipe pile head. The bracket can be fixed.

The other foot, which is to be installed on the inner surface side of the steel pipe pile head of the U-shaped engaging member, extends from the foot at a substantially right angle (in the horizontal direction in FIG. 2). An outgoing support member 11 is provided. Above and below the support member 11, two level adjustment nuts 8 are rotatably arranged. The screw on the inner surface of the level adjusting nut and the screw on the outer surface of the bar can be screwed together. Therefore,
The bar 6 is inserted into the center hole of the support member 11, and two level adjusting nuts 8 screwed to the bar 6 are arranged above and below the support member 11. Next, when the level adjusting nut is rotated, the bar can be adjusted to the vertical level position according to the rotation of the level adjusting nut. As a result, it is possible to arbitrarily control the vertical position of the surface plate member suspended from the bar. Further, the level adjustment nut may be rotatably embedded in the support member.

That is, the U-shaped engaging member 11 of the fixing bracket
Is fitted to the upper edge of the steel pipe pile, and the fastening fitting can be mounted on the steel pipe pile by tightening the tightening bolt 10.
At the same time, four metal fittings are attached to the head of the steel pipe pile at equal intervals, and four members forming the surface of the surface plate 1 are suspended via the bars 6. In this state, the level adjustment nut provided on each fixture is rotated, and the bar material screwed with the level adjustment nut is moved up and down to adjust the level of the installation position of the surface plate, The member is installed in the steel pipe pile.

The bars 6 can be connected by a separate joint 12 if necessary.

That is, in consideration of workability, it is preferable that the bar material hanging from the platen member is connected to the bar material screwed to the fixing bracket by a separate joint.

FIG. 3 is a view showing a state in which concrete is poured into a steel pipe pile and a surface plate member is fixed.

After adjusting the level so that the roof level of the surface plate member becomes a predetermined level and installing the surface plate member in the steel pipe pile, as shown in FIG. For example, the concrete 13 is cast to a position where the surface plate member can be fixed. After the concrete has hardened, the fixtures are removed and the platen becomes a place for placing the pillars.

If necessary, while the concrete is soft, the level of the position of the surface plate member can be adjusted again by rotating the level adjusting nut 8. For this reason, even if the level position of the surface plate member is misaligned due to the casting of concrete, it is possible to adjust the installation level with high accuracy by adjusting the level again.

FIG. 4 is a view showing a state where a steel pipe column is inserted into a steel pipe pile.

After the installation of the surface plate member is completed, as shown in FIG.
4 is placed on the surface plate member 1, concrete is cast into a steel pipe pile and a steel pipe column, and the two are joined and integrated with concrete, whereby the steel pipe column can be built. Although the bar 6 may be left as it is, it may be removed before the concrete is cast, if necessary. Further, as the column, a circular or square steel pipe column, a steel frame column or the like can be used, and as the steel pipe pile, a circular or square steel pipe pile can be used.

[0029]

According to the present invention, since the level of the platen is adjusted at the head of the steel pipe pile, there is no need for an operator to enter the pile and the workability is good. In addition, since no workers are required, there is no need to secure a work space for the surface plate, and the diameter of the steel pipe pile does not need to be unnecessarily increased to a value larger than an appropriate design value. Furthermore, since the level of the surface plate can be adjusted again while the concrete is soft even after the concrete is cast, there is an effect that the level can be set with high accuracy.

[Brief description of the drawings]

FIG. 1 is a view showing a surface plate member in which a channel steel is fixed to the tip of a cross-shaped angle iron.

FIG. 2 is a diagram showing a state in which a surface plate member is installed in a steel pipe pile.

FIG. 3 is a view showing a state where concrete is poured into a steel pipe pile and a surface plate member is fixed.

FIG. 4 is a view showing a state in which a steel pipe column is inserted into a steel pipe pile.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Surface plate member 2 Angle steel member 3 Channel steel 4 Sheet pile catcher 5 Steel pipe pile 6 Bar material 7 Fixing bracket 8 Level adjustment nut 9 Engagement member 10 Bolt 11 Support member 12 Sepa joint 13 Concrete 14 Steel pipe column

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shinichi Mutaguchi 2-6-3 Otemachi, Chiyoda-ku, Tokyo Inside Nippon Steel Corporation (72) Inventor Tatsuya Fukumoto 2-6, Otemachi, Chiyoda-ku, Tokyo 3 Nippon Steel Corporation (72) Inventor Masamichi Sawaishi 2-6-3 Otemachi, Chiyoda-ku, Tokyo Nippon Steel Corporation (72) Inventor Shinkichi Kimura 1201 Hitomi Kimitsu City, Chiba Prefecture Sanken Co., Ltd.

Claims (4)

[Claims] 1. A metal plate fixed to a tip of a cross-shaped member with a steel material serving as a surface plate fixedly attached to a steel pipe pile head by a metal fitting suspended from a steel pipe pile via a bar. The bar is moved up and down with the bar up and down adjustment jig provided at the stage to adjust the level of the roof of the surface plate member, then concrete is poured into the steel pipe pile, and the surface plate member is A method of constructing a surface plate for installing columns such as steel pipe columns and steel frame columns in a steel pipe pile, characterized in that the surface plate is formed by being fixed in the inside. 2. When the concrete is poured into the steel pipe pile and the platen member is fixed in the steel pipe pile, when the concrete after the casting is in a soft state, the level adjustment of the roof position of the platen is performed again. The method for constructing a surface plate for erection of columns such as steel pipe columns and steel frame columns in the steel pipe pile according to claim 1, characterized in that: 3. An engagement member having a U-shaped cross section which can be fitted to an upper end portion of a steel pipe pile head, a bolt screwed to one foot of the engagement member, and A fixing member consisting of a supporting member extending substantially at a right angle from the other leg and a level adjusting nut rotatably disposed at the center of the supporting member, and a top end of the member assembled in a cross shape A steel pipe comprising: a plate member to which a steel material forming a plate surface is fixed; and a bar member for screwing the plate member with a level adjustment nut of the fixing bracket to suspend the plate member. Surface plate construction equipment for erection of steel pipe columns and steel columns in piles. 4. A bar joint for suspending a surface plate member, wherein a threaded bar portion to be screwed into a level adjustment nut of a fixing bracket and a bar portion to be joined to the surface plate member are separated joints. The platen construction device for erection of columns such as steel pipe columns and steel frame columns in the steel pipe pile according to claim 3, wherein the rod members are connected by a bar.