JP2003138649A - Erection supporting body and method for installing beam in the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily execute work for installing a beam. SOLUTION: An erection supporting body in equipped with; flanges 5b which can be bolted to both ends of the beam 1; pedestals 5 which are provided in accordance with positions for supporting both the ends of the beam 1 and to which the flanges 5b are welded; and guide members 6 which are fixed to the flanges 5b and engaged with the beam 1 in a longitudinally movable manner. The flanges 5b are engaged with both the ends of the beam 1 via the guide members 6; the beam 1 is transported so that both the ends of the beam 1 can be located extremely close to the pedestals 5; the respective flanges 5b are appropriately moved in the longitudinal direction of the beam 1 and bolted to both the ends of the beam 1; and the flanges 5b are welded for fixation to the pedestals 5.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a erection support and a method of installing a beam on the erection support.

[0002]

2. Description of the Related Art FIGS. 4 and 5 show an example of a conventional erection support incorporated in a reinforced concrete structure. The erection support is located at both ends of a beam (long H-section steel). Correspondingly, a pair of pedestals (short H-shaped steel) 3 protruding from the wall slab 2 are provided.

The beam 1 is composed of a long web 1a and upper and lower long flanges 1b and 1c, and a plurality of bolt insertion holes 1d penetrating vertically are formed at both ends of the lower long flange 1c. .

The pedestal 3 is composed of a short web 3a and upper and lower short flanges 3b and 3c. A plurality of bolt insertion holes 3d vertically extending through the upper short flange 3b are provided on the upper surface of the short flange 3b. When the flange 1c is mounted, the flange 1c is provided so as to face each of the holes 1d.

When installing the beam 1 on the pedestal 3, a long flange 1 is installed by a lifting means (not shown) such as a crane.
Both ends of the beam 1 are placed on the pedestal 3 so that the hole 1d of c coincides with the flange 3d of the short flange 3b.
b are mutually concluded.

Considering the case where the spacing between the pedestals 3 is not as designed due to the finishing accuracy of the wall slab 2 and the like, the inner diameter of the hole 1d of the long flange 1c is set to the outer diameter of the bolt to be inserted. On the other hand, it is set large.

[0007]

However, if the error in the distance between the pedestal 3 and the design value deviates from the expected range, the hole 1d must be expanded at the installation site.

Further, if the inner diameter of the hole 1d becomes too large, the longitudinal sectional area of the long flange 1c decreases, and the strength of the beam 1 decreases.

Therefore, in order to perform the installation work of the beam 1 efficiently, for example, as shown in FIG. 6, after a plurality of beams 1 to be radially arranged are fixed to each other by auxiliary beams 4 and integrated, It is extremely difficult to bolt both end portions of each beam 1 to the pedestal 3 protruding from the wall slab 2.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to make it easy to install a beam.

[0011]

In order to achieve the above object, in the erection support according to the first aspect of the present invention, a flange which can be bolted to both ends of the beam and a position where both ends of the beam are supported are supported. And a guide member fixed to the flange and movably engaged with both end portions of the beam in the longitudinal direction thereof.

In the erection support according to the second aspect of the present invention, flanges which can be bolted to both ends of a plurality of integrated beams, and flanges which are provided in correspondence with both-end supporting positions of the beams are welded. And a guide member fixed to the flange and engaged with both ends of the beam so as to be movable in its longitudinal direction.

According to a third aspect of the present invention, in addition to the construction of the first aspect of the present invention, a flange is fastened to one end of the beam. The shape of the hole for inserting the bolt is set to an elliptical shape whose major axis is in the beam longitudinal direction.

According to a fourth aspect of the present invention, in the method of installing a beam on an erection support, flanges are engaged with both end portions of the beam through guide members, and the both end portions of the beam are close to a pedestal. After transporting each flange so as to be located in the beam, appropriately moving each flange in the longitudinal direction of the beam and fastening the bolts to both ends of each beam, the flange is welded and fixed to the pedestal.

In the erection support according to the first aspect of the present invention, the flange engaged with the beam via the guide member is
After being moved in the longitudinal direction of the beam and bolted to both end portions of the beam, flanges are welded to the pedestal to allow an error in the spacing of the pedestal to support both end portions of the beam.

In the erection support according to the second aspect of the present invention, the flanges engaged with the respective beams through the guide members are moved in the longitudinal direction of the beams and bolted to both ends of the respective beams. After that, the flange is welded to the pedestal to allow an error in the spacing of the pedestal to support both ends of each beam.

In the erection support according to the third aspect of the present invention, the shape of the hole for inserting the bolt is set to be oval to allow thermal expansion in the longitudinal direction of the beam.

In the method of installing the beam on the erection support according to claim 4 of the present invention, the flange is engaged with the beam by the guide member, and the beam and the flange are integrally conveyed to the vicinity of the pedestal. Then, the work of bolting the flange to both ends of the beam and the work of fixing the flange to the pedestal are performed.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 3 show an example of an embodiment of the erection support of the present invention. In the drawings, the same reference numerals as those in FIGS. 4 and 5 represent the same parts.

This erection support includes short flanges 5b which can be bolted to both ends of a lower long flange 1c of a beam (long H-section steel) 1 and a wall slab 2 corresponding to both end support positions of the beam 1. It is provided with a pair of pedestals 5 projecting from each other, and a guide member 6 for locking the short flanges 5b at both ends of the beam 1 so as to be movable in the longitudinal direction thereof.

A plurality of holes 1e for vertically inserting bolts are formed at one end of the lower long flange 1c.
In addition, a plurality of bolt insertion holes 1d that penetrate vertically are formed in the other end portion of the long flange 1c.

The shape of the hole 1e at one end of the long flange 1c is set to an elliptical shape whose major axis is in the longitudinal direction of the beam 1.

The short flange 5b is provided with a plurality of vertically penetrating holes 5d for inserting bolts at the same intervals as the holes 1d and 1e of the long flange 1c.

The pedestal 5 is composed of a short web 5a and a short flange 5c connected to the lower edge thereof, and the short flange 5b is welded and fixed to the upper edge of the short web 5a to form a short H-section steel. Form.

Two guide members 6 are provided on each of the left and right edges of the short flange 5b, the base end portion is fixed to the left and right edge portions of the short flange 5b, and the tip end portion is the long flange 1 of the beam 1.
It is bent so that it can slide on the upper surface of c.

When installing the beam 1 on the pedestal 5, the short flanges 5b are attached to both ends of the long flange 1c via the guide members 6 so as to be movable in the longitudinal direction of the beam 1.

Next, the beam 1 is suspended by a lifting means (not shown) such as a crane so that both end portions of the beam 1 are located immediately above the short web 5a of the pedestal 5.

In this state, the relative position of the short flange 5b to the long flange 1c is adjusted so that the holes 5d face the holes 1d and 1e, and the holes 1e and 5d and the hole 1 are adjusted.
Insert the bolts into d and 5d to insert both flanges 1c and 5b.
Conclude with each other.

Further, the short flange 5b is brought into contact with the short web 5a of the pedestal 5, and the short flange 5b is welded and fixed to the short web 5a.

As described above, in the erection support shown in FIGS. 1 to 3, the short flange 5b is engaged with the beam 1 by the guide member 6 and they are integrally conveyed to the vicinity of the receiving table 5. After that, since the short flanges 5b are bolted to both ends of the beam 1 and welded to the pedestal 5, the installation work of the beam 1 is easy even if there is an error in the spacing of the pedestal 5 that should support the beam 1. In addition, it can be performed efficiently.

Further, since the short flange 5b can be moved in the longitudinal direction of the beam 1, it is not necessary to widen the holes 1d and 1e when fastening the bolts.
The decrease in the strength of the beam 1 due to the decrease in the vertical sectional area of c does not occur.

In addition to this, since the shape of each hole 1e at one end of the long flange 1b is set to be an elliptical shape, the beam 1
Can be allowed to expand in the longitudinal direction.

Further, the guide member 6 is provided on the long flange 1c of the beam 1.
If the structure in which the short flange 5b is attached via the above is applied to the one in which a plurality of beams 1 as shown in FIG. 6 are integrated,
It becomes possible to install a plurality of beams 1 substantially simultaneously.

The erection support and the method of installing the beam on the erection support according to the present invention are not limited to the above-described embodiments, and the shape of the hole to be bored in the flange is an ellipse. Of course, setting and other changes can be made without departing from the scope of the present invention.

[0036]

As described above, according to the erection support and the method of installing the beam on the erection support of the present invention, various excellent effects as described below can be obtained.

(1) In the erection support according to the first aspect of the present invention, the flange engaged with the beam via the guide member is bolted to both ends of the beam, and then the pedestal is supported. Since the welding is performed, the installation work of the beam can be easily performed even if there is an error in the interval between the pedestals that support the beam.

(2) In the erection support according to claim 2 of the present invention, after the flanges engaged with the respective beams through the guide members are bolted to both ends of the respective beams,
Since welding is performed on the pedestal, even if there is an error in the spacing between the pedestals that support the beams, the installation work of each beam can be easily performed.

(3) Claim 1 or Claim 2 of the present invention
In any of the erection supports described in (1), since the flange to be welded to the pedestal can be moved in the beam longitudinal direction, it is not necessary to expand the hole for bolt insertion when fastening the flange and the beam. In addition, the strength does not decrease due to the enlargement of the holes.

(4) In the erection support according to claim 3 of the present invention, the shape of the hole for inserting the bolt for fastening one flange to one end of the beam is set to be an ellipse. Therefore, thermal expansion in the longitudinal direction of the beam can be permitted.

(5) In the method of installing the beam on the erection support according to the fourth aspect of the present invention, the beam and the flange are engaged with each other through the guide member, and the beam and the flange are attached to the pedestal. Since the work is integrally carried to the nearest place, the work of bolting the flange to both ends of the beam and the work of fixing the flange to the pedestal are performed, the work of installing the beam can be efficiently performed.

[Brief description of drawings]

FIG. 1 is a conceptual diagram showing a beam installation procedure in an example of an embodiment of a erection support of the present invention.

FIG. 2 is a conceptual diagram showing a state before mounting a flange on a beam related to FIG.

FIG. 3 is a conceptual diagram showing a state where installation work of a beam on a pedestal related to FIG. 1 is completed.

FIG. 4 is a conceptual diagram showing a procedure for installing a beam on an example of a conventional erection support.

FIG. 5 is a conceptual diagram showing a state in which the installation work of the beam on the cradle related to FIG. 4 is completed.

FIG. 6 is a conceptual diagram showing a state in which a plurality of beams are integrated.

[Explanation of symbols]

1 beam 1e hole 5 stand 5b short flange 6 guide members

Claims (4)

[Claims] 1. A flange that can be bolted to both ends of the beam, a pedestal provided corresponding to both ends of the beam and welded to the flange, and a flange fixed to the flange and extending to both ends of the beam. And a guide member that is movably engaged in the direction. 2. A flange capable of being bolted to both end portions of a plurality of integrated beams, a pedestal provided corresponding to both end supporting positions of each beam and having the flange welded thereto, and a beam fixed to the flange and attached to the beam. A guide member which is provided at both ends of the guide member so as to be movable in the longitudinal direction thereof. 3. A bolt insertion hole for fastening a flange to one end portion of a beam, wherein the shape of the hole is set to be an elliptical shape whose major axis is in the beam longitudinal direction. Erection support. 4. A flange is engaged with both end portions of the beam via guide members, the beam is conveyed so that both end portions thereof are positioned close to the pedestal, and each flange is appropriately moved in the longitudinal direction of the beam. The method of installing a beam on a erection support according to any one of claims 1 to 3, wherein the flange is welded and fixed to the pedestal after being bolted to both ends of the beam.