JPH0755236Y2 - Steel column joint fittings - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention mainly relates to a steel-framed pillar that is erected in basic concrete in the construction of a steel structure and a steel-column joint pillar that is erected thereon. The present invention relates to a metal fitting for a steel column, which is used when joining and is removed after joining a steel-made rooted column and a steel-framed joint column.

(Prior Art) Conventionally, four joining pieces are preliminarily provided by welding means at an appropriate interval in the radial direction on the outer peripheral surface of the joining end portion of the steel-framed entry column and the steel-frame joint column. Every time, at the time of joining, the joining pieces of the rooting column and the stepping column are joined together by bolts and nuts through the joining plate, and then the joining ends of the rooting column and the stepping column are welded. After that, each joining plate was removed from the joining piece, each joining piece was cut, and finally, the outer peripheral surface of the joining end portion of the rooting pillar and the joint pillar was neatly polished with a grinder. .

(Problems to be solved by the invention) However, after welding the joint ends of the root post and the joint pillar, each joint plate is removed and each joint piece is cut, and finally, the joint pillar and the joint pillar. Since the outer peripheral surface of the joint end with the pillar must be neatly polished with a grinder, not only is it difficult to perform the joint operation between the rooted column and the joint column, but also each joint piece is discarded, It was wasteful and uneconomical.

Therefore, the present invention has been devised to solve the above-mentioned problems, and makes it extremely easy to perform the joining operation between the root-entry column and the joint column, and the respective joint pieces are discarded. It is intended to provide a steel-column-joint metal fitting that is not wasted and has a large economic effect without waste.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides a pair of front and rear joined bodies which are detachably attached to the upper end of a rooting pillar of a steel frame erected in basic concrete, and a rear joined body. It is composed of a side joined body and a pair of front and rear joined bodies, a front joined body and a rear joined body, which are detachably attached to the lower end portion of the joint bar of the steel frame which is erected on the side joined body. A connecting piece projecting outwardly at both inner edges of a joining main plate formed in a planar U-shape or a semi-circular planar shape corresponding to the planar shapes of the steel column rooting column and joint column, and, On the outer peripheral side of the joint side end portion of the main joint plate, joint pieces to be jointed through a joint plate at the time of joining the steel-entry column and the joint bar of the steel frame are provided to project outward, respectively. The joint side end of each joint piece slightly protrudes in the joint side direction from the joint side end of the joint main plate. The butt,
At the joint side end of the joint main plate, a projecting window is formed so as to form a window portion necessary for joining the steel-column-type entry column and the steel-frame joint foot column.

(Operation) In the construction of a steel frame structure, the lower side when joining the steel-made rooting column that is erected to the basic concrete and the steel-framed joint column that is erected on it by the above-mentioned technical means The front joined body and the rear joined body are attached detachably to the upper end of the rooted pillar so that the upper ends of the joints of the joint pieces are flush with the upper end of the rooted pillar, and the upper front joint Body and rear joined body to the lower end portion of the joint foot pillar, and detachably attached to the lower end of the joint foot pillar so that the lower ends of the abutting portions of the joint pieces are flush with each other. Welding the joint end of the root post and joint column by detachably joining the opposing joint pieces of the rear joint body, the upper front joint body and the rear joint body through the joint plate. When joining, each joining piece abutting part of the lower front joined body and the rear joined body, and each of the upper front joined body and the rear joined body After welding the joint end of the root post and the joint foot from the window part configured by abutting the joint piece abutment, and after welding the joint end of the root post and the joint pillar, A front joined body and a rear joined body, and an upper front joined body and a rear joined body can be easily removed from a root post and a joint column.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

The steel column joint fitting of the present invention is a pair of front and rear front joints 1 and 2, which are removably attached to the upper end of a steel-framed rooting column A that is erected in a foundation concrete, and are erected on it. It is composed of a pair of front and rear joined bodies 1 and 2 which are detachably attached to the lower end portion of the steel joint column B.

These front-side joined body 1 and rear-side joined body 2 are formed in a plane inward U-shape corresponding to the plane shapes of the rooting column A and the joining column B of the steel frame of light-angled steel (square pipe). Connecting pieces 5 each having four connecting holes 4 vertically spaced at appropriate intervals are provided on both inner edges of the joining main plate 3 so as to project outward, and the outer peripheral surfaces of the joining-side end portions of both outer corners of the joining main plate 3 are provided. In the radial direction, joint pieces 7 having two joint holes 6 at appropriate intervals in the vertical direction are provided so as to project in the radial direction, and the joint side ends of the joint pieces 7 are slightly smaller than the joint side ends of the joint main plate 3. Notch 8 protruding toward the joining side
The attached butt portion 9 is provided so as to project at the end of the joining main plate 3 on the joining side so that the window portion 10 required when joining the steel-made rooting column A and the steel joint column B is constructed. Two reinforcing pieces 11 are formed between the outer surfaces of 3 and each connecting piece 5 so as to be vertically spaced at appropriate intervals.

The lower front joined body 1 and the rear joined body 2 thus formed are joined to the upper end portion of the rooted column A of the steel frame of light-angled steel (square pipe), and to the upper end of the rooted column A, respectively. The pieces 7 are opposed to each other in the front-rear direction so that the upper ends of the abutting portions 9 are flush with each other, and are detachably attached to the connection holes 4 of the connection pieces 5 facing each other via bolts 12 and nuts 13. Also, the upper front joined body 1
And the rear joined body 2 to the lower end of the joint pillar B of the steel frame made of light-angled steel (square pipe), and the lower end of the joint piece 7 of the joint piece 7 is flush with the lower end of the joint pillar B. So that they are opposed to each other in the front-back direction, and bolts are connected to the connecting holes 4 of the connecting pieces 5 facing each other.
It is detachably attached via 14 and nut 15. Then, a joining hole is formed in the joining piece 7 of the lower front joined body 1 and the rear joined body 2 and the upper front joined body 1 and the rear joined body 2 facing each other.
Two joint plates 17 with 16 are laid across each other so as to be sandwiched from both sides, and detachably joined to these respective joint holes 6 and 16 via bolts 18 and nuts 19.

Further, the main joint plates 3 of the front side joint body 1 and the rear side joint body 2 correspond to the plane shapes of the rooting column A and the joint column B of the steel frame of the light-angled steel (square pipe) and face inward in the plane. Although it is described and illustrated as being formed in a V shape, the shape is not limited to this, and it corresponds to the planar shape of the steel frame of the rooted column A and the stepped column B of light rounded corner steel (round pipe). It may be formed in a plane semicircular shape. In this case, the respective joining pieces 7 are arranged at appropriate intervals on the outer peripheral surface of the joining side end portion on the outside of the joining main plate 3 so as to respectively project in the radial direction.

Further, the joining piece 7 has the joining main plate 3 of the abutting portion 9 that projects to the joining side end from the joining side end of the joining main plate 3 slightly in the joining side direction.
Although it is described and illustrated that the cutout portion 8 is provided at the side corner portion, the cutout portion 8 is not limited to this, and the cutout portion 8 has an effect that it is slightly weldable when the root post A and the joint post B are joined. However, it is not always necessary.

(Effects of the Invention) As described above, the present invention includes a pair of front and rear joined bodies 1 and 2, which are detachably attached to the upper end portion of the rooted column A of the steel frame erected in the basic concrete, and the joined body 2 and the rear joined body 2. It is composed of a front and rear pair of front and rear joined bodies 1 and 2 which are detachably attached to the lower end portion of the joint frame B of the steel frame which is erected on the front side, and these front and rear joined bodies 1 and 2 are Connecting pieces 5 project outwardly at both inner edges of the joining main plate 3 formed in a planar U-shape or in a semi-circular flat shape corresponding to the planar shapes of the rooted column A and the joint column B of the steel frame. In addition, on the outer peripheral surface of the outer joint side end of the main joint plate 3, a joint piece 7 to be jointed via the joint plate 17 at the time of jointing the root post A of the steel frame and the joint post B of the steel frame Each of the joining pieces 7 project toward the joining side end of the joining main plate 3 slightly toward the joining side. The abutting portions 9 are formed at the joining side end of the joining main plate 3 so as to project a window portion 10 required for joining the steel-made rooting pillar A and the steel-made joint pillar B, respectively. Therefore, as shown in FIG. 2 and FIG. 3, in the construction of the steel frame structure, the steel-framed root post A of the steel frame that is erected on the basic concrete and the steel joint bar B that is erected thereon are joined together. At this time, the lower front joined body 1 and the rear joined body 2 are located at the upper end of the rooted pillar A, and the upper end of the rooted pillar A is made flush with the upper end of the abutting portion 9 of each joint piece 7. The front joined body 1 and the rear joined body 2 on the upper side are detachably attached to the lower end portion of the joint pillar B, and the lower ends of the joint pieces 7 of the joint pieces 7 are flush with the lower end portion of the joint foot pillar B. Detachably attached so that the lower front joined body 1 and the rear joined body 2 and the upper front joined body 1 and the rear joined body 2
When the joining ends of the rooted column A and the joint column B are welded by detachably joining the joining pieces 7 facing each other via the joining plate 17, the lower front joined body 1 and Rear junction 2
From the window portion 10 configured by abutting each joint piece 7 butting portion 9 and each joining piece 7 butting portion 9 of the upper front joined body 1 and the rear joined body 2, the root post A and the joint pillar Weld the joint end with B
After welding the joint end of the rooted column A and the joint column B,
Since the lower front joint body 1 and the rear joint body 2 and the upper front joint body 1 and the rear joint body 2 can be easily removed from the root post A and the joint foot column B, as in the conventional case. After joining the rooting column and the stepping column, remove each joining plate and cut each joining piece, and then clean the outer peripheral surface of the joining end of the rooting column and the stepping column neatly with a grinder. Without this, the joining operation between the root post A and the joint post B is extremely easy.

Moreover, after welding C at the joint end of the root post A and the joint post B, the lower front joint body 1 and the rear joint body 2 and the upper front joint body 1 and the rear joint body 2 are connected. Rooted pillar A and stepped pillar B
Since it can be easily removed and reused from the joint, after welding the joining end of the rooting column and the joint column as in the past, there is no waste and economical without cutting and discarding each joining piece individually. The effect is great.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is an exploded perspective view of a lower front and rear pair of front and rear joined bodies.
The figure is a front view of the use state, and FIG. 3 is a cutaway plan view of the same portion. 1 ... front joined body, 2 ... rear joined body, 3 ... joining main plate, 4 ... connecting hole, 5 ... connecting piece, 6 ... joining hole, 7 ...
… Joint piece, 8 …… notch part, 9 …… butt part, 10 …… window part,
11 …… Reinforcement piece, 12 …… Bolt, 13 …… Nut, 14 …… Bolt, 15 …… Nut, 16 …… Joint hole, 17 …… Join plate, 18
...... Bolts, 19 ...... Nuts, A ・ ・ ・ Posts, B ・ ・ ・ Posts, C ・ ・ ・ Welding.

Claims (1)

[Scope of utility model registration request] 1. A front and rear pair of front and rear joints which are detachably attached to the upper end of a steel-columned post that is erected in basic concrete, and the lower end of the steel joint column that is erected thereon. It is composed of a front and rear pair of front and rear joints that are detachably attached to the front joint and the rear joint. Connecting pieces are respectively projected outward at both inner edges of the joining main plate formed in a planar U-shape or a plane semicircular shape, and the outer peripheral surface of the joining side end of the joining main plate is provided with the steel frame. At the time of joining the root post and the steel joint column, the joining pieces to be joined via the joining plate are respectively provided to project outward, and the joining side end of each joining piece is more than the joining side end of the joining main plate. A butt portion that slightly protrudes in the joining side direction is provided at the joining side end of the joining main plate with the entry column of the steel frame and the steel frame. Joint device of steel columns, characterized in that by projecting each formed as a window portion required at the time of bonding the foot column is configured.