Abstract: Seven-wire steel strands are widely used in various types of prestressed concrete structures. When a strand is subjected to a tensile force, the traveling time of the stress wave will be affected due to the elongation of ...

Abstract: This paper presents a nondestructive, stress wave technique to evaluate the prestress levels in posttensioned seven-wire strands. Seven-wire steel strands are widely used in various types of prestressed concrete structures. ...