High strength bolted structure and method of securing nut...

Details High strength bolted structure and method of securing nut... High strength bolted structure and method of securing nut...

2007-04-17

2007-04-17

Glessner, Brian E. (Department: 3676)

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Headed fastener element with nut, washer, securing means or cap

Lap bolt or fastener

C411S004000, C411S005000, C411S432000, C411S533000

Reexamination Certificate

active

10204206

ABSTRACT:
A join structure comprises a box section column and spit T-section joined by a high strength bolt and a method secures a nut to an inside of the box section column. A Torque-Shear type high strength bolt is tightly tightened by a controlled tension and a joining method of a steel member uses that bolt. The join structure is comprised of a box section column, a split T-section attached to its outer surface, and a high strength bolt inserted from the outside of the split T-section and fastened with the nut. The nut is secured to the box section column by joining a sleeve secured to a washer formed integrally with the nut and a sleeve of a nut holding part from the outside of the column. The Torque-Shear type high strength bolt has a pintail for controlling the torque at its top.

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