Joining structure

Details Joining structure Joining structure

2005-02-22

2005-02-22

Cottingham, John R. (Department: 3679)

Joints and connections

With strain-limiting means

C403S042000, C403S230000, C403S335000, C052S170000, C052S296000, C248S903000

Reexamination Certificate

active

06857808

ABSTRACT:
The present invention provides a joining structure capable of greatly improving the proof stress and the fatigue property by alleviating the stress concentration and residual stress caused by welding heat at one or both ends of a tabular member.In the present invention, one or both ends4of a tabular member3such as a reinforcing rib, fixed to the surface of a structural member1in the direction of the principal stress of the structural member1so as to protrude in the shape of T, is/are bent in a direction deviating from the direction of the principal stress and, by this, the rigidity at the end(s)4of the tabular member3decreases and the stress concentration is alleviated. It is preferable to bend one or both ends of a tabular member3in the shape of an gradual curve and to the extent that each bent end is formed at a right angle to the direction of the principal stress. The tabular member may have the shape of a flat plate, or it may be bent so that it has the shape of U or V as a whole. Further, the tabular member may be welded to a structural member or formed as an integral part of a structural member.

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JP Publication No. 11117245, Apr. 27, 1999, Patent Abstracts of Japan.

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