Abstract
Ultimate flexural tests are conducted to evaluate the effective area of corroded prestressed strands in prestressed concrete beams with corroded strands. Corroded prestressed steel wires in prestressed concrete beams can be disconnected before ultimate load,and thus, ultimate flexural strength can be less than the calculated flexural strength using the residual area of corroded strand.
Therefore, considering premature wire fractures of corroded strand, effective area rather than residual area is required for obtaining the conservative flexural strength of PSC beams with corroded strands. In order to investigate the effects of the loss of strand area on the flexural strength of prestressed concrete beams, nine test beams were fabricated with varied loss of strand area and static load applied to obtain the ultimate flexural strength of the test beams. Based on the test results, a method for evaluating the effective area of corroded strand is proposed.
Therefore, considering premature wire fractures of corroded strand, effective area rather than residual area is required for obtaining the conservative flexural strength of PSC beams with corroded strands. In order to investigate the effects of the loss of strand area on the flexural strength of prestressed concrete beams, nine test beams were fabricated with varied loss of strand area and static load applied to obtain the ultimate flexural strength of the test beams. Based on the test results, a method for evaluating the effective area of corroded strand is proposed.
| Translated title of the contribution | Flexural Tests for the Evaluation of Effective Tendon Area in PSC Beams with A Corroded Tendon |
|---|---|
| Original language | Korean |
| Pages (from-to) | 143-150 |
| Number of pages | 8 |
| Journal | 한국방재학회논문집 |
| Volume | 12 |
| Issue number | 6 |
| DOIs | |
| State | Published - Dec 2012 |