发明名称 Method of eliminating and uneven stress distribution in an elongated reinforced member
摘要 Reinforcing members of concrete structures are often tensioned against a considerable frictional resistance, which causes an uneven stress distribution along the member. This means that the reinforcing capacity of the member is unsatisfactorily utilized. To obtain a more even stress distribution the tensioning operation is terminated by a sudden, measured release of tensioning force, resulting in a shock wave progressing along the member.
申请公布号 US4048706(A) 申请公布日期 1977.09.20
申请号 US19760654988 申请日期 1976.02.03
申请人 LUDVIGSON, BIRGER 发明人 LUDVIGSON, BIRGER
分类号 E04G21/12;(IPC1-7):E21B19/00 主分类号 E04G21/12
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