Hot-rolled concrete reinforcing bar, in particular reinforcing ribbed bar

US4922681A · kind A · utility

Assignees

• Dyckerhoff & Widmann Aktiengesellschaft · DE
• Arbed S.A. · LU

Inventors

• Dieter Russwurm · Puchheim, DE
• Dieter Jungwirth · Munich, DE

Key dates

• Filing date: Sep 9, 1988
• Grant date: May 8, 1990
• Expiry date: Sep 9, 2008

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E04C5/165
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

In a hot-rolled concrete reinforcing bar of which the ribs are arranged along a helical line and form portions of a thread for screwing on an anchoring or connecting body provided with a counter thread a rib form and rib arrangement improved as regards the dynamic stressability of the thread connection is proposed.