JPH0113681Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a column/beam rigid connection device for a steel rigid frame that connects a steel column and a steel beam by forming tension bolts.

(Problem to be solved by the invention) Conventionally, when directly connecting a square steel pipe column with a relatively small diameter to a steel beam, it is necessary to directly connect a nut to the inside or outside of the joint between the square steel pipe column and the steel beam. It is possible to attach a steel plate with a nut fixed by welding, etc., to the inside of a square steel pipe column, to cut a tap screw in the square steel pipe column at the joint to use it in place of a nut, or to attach a nut by cutting a tap screw. Instead, steel splicing plates or joining metal fittings are attached and the square steel pipe column and the steel beam are screwed together from the beam side, but the bolts used are medium bolts or have high strength. Even with bolts, it is difficult to secure the required degree of fixation at the column-beam joint because the structure of the joint is inadequate and the tension control is insufficient, so it is not a rigid joint. Also, by using a screw hole with a tap screw in place of the nut, it was not possible to manage the tension introduced into the high-strength bolt using the frictional force when screwing the nut in a general high-strength bolt connection. .

This idea was developed in view of the above circumstances, and is intended to make the joint between the column and beam rigid by using a load control washer.

(Structure of the invention) The gist of this invention is as described in the above-mentioned utility model registration claims.To explain further, the steel plate or joint metal fittings attached to the joint part of the steel column with the steel beam Tap screw holes are provided in place of nuts in high-strength bolt connections, and joining plates with a thickness that can resist various stresses are attached to the ends of the steel beams by welding, etc. The beam is connected to the steel frame that will become the column by a high-strength bolt that passes through the bolt insertion hole of the connection plate and is screwed into the screw hole of the steel plate or connection metal, and the connection plate and the joint surface of the column or By using a load control washer, which can confirm that the required tension has been introduced by changing the shape of the washer when a certain force is applied to the joint surface with the surface of the joining hardware, it is possible to easily introduce the required tension and increase the This is a rigid column/beam joint device that secures the stability of the column/beam joint in a steel rigid frame structure by using force bolts to secure the joint.

(Example) The drawing shows an example of this invention.
In Figures 1 and 2, column 1 is a lightweight square steel tube, and beam 2 is
is a lightweight H-beam steel.

At the joint between the column 1 and the beam 2, a short pipe 3 is interposed, and a steel plate 4 is stacked on the inside thereof, and a bolt screwing hole 5 is formed in this steel plate 4 in place of a nut in high-strength bolt connection. has been done. A joint plate 6 is fixed to the end of the beam 2, and a bolt insertion hole 7 is formed in the joint plate 6.

When joining, the joint plate 6 of the beam 2 is butted against the side surface of the short pipe 3 of the column 1, the load control washer 8, the joint plate 5, and the short pipe 3 are inserted, and the high-strength bolt 9 is inserted into the bolt threading hole of the steel plate 4. 5 to form a tension bolt connection.

FIG. 3 is an explanatory diagram showing the change in the shape of the load control washer 8. When the bolt is tightened and the shape of the washer changes from a to b, the required tension is obtained.

Figures 4 and 5 show other embodiments, in which a cast steel joint 1 that integrates a short pipe and a steel plate is shown.
In addition, the short tube 3 may be integrated with the column 1.

(Effects of the invention) When connecting steel columns and steel beams using tension bolts, nuts can be used instead of nuts in high-strength bolt connections by providing tap-threaded holes in the joint steel plate or joining metal fittings. Compared to welded types, processing is easier and tightening is more stable.

By using high-strength bolts and load control washers, the tension introduced into the high-strength bolts can be visually confirmed by changes in the shape of the washer, making tension management easier and improving the stability of column-beam joints. This makes it possible to securely secure and rigidly connect columns and beams.

[Brief explanation of the drawing]

Fig. 1 is an exploded front view and longitudinal sectional view showing an outline of an embodiment of this invention, Fig. 2 is a cross sectional view of the column part,
FIGS. 3a and 3b are action explanatory diagrams, and FIGS. 4 and 5 are exploded front views and longitudinal sectional views showing other embodiments. 1...Column, 2...Beam, 3...Short pipe, 4...Steel plate, 5...Bolt threading hole, 6...Joining plate,
7... Bolt insertion hole, 8... Load control washer, 9...
...High strength bolt.

Claims (1)

[Scope of utility model registration request] A screw hole with a tap screw is provided at the joint part where the steel beam of the steel frame column is joined, and a plate is provided at the end of the beam steel frame, and the screw hole is inserted through the bolt insertion hole of the joint plate through the dyed steel frame. The column-beam joint in a steel rigid frame structure is rigidly connected to the steel column using a high-strength bolt that is screwed into the frame, and a load control washer is used to introduce the required tension to the joint surface. A column/beam rigid joint device characterized by: