Table 7 Comparing required details of HPDC beams with NC with the same flexural capacity (fc of NC was considered 25 MPa).
From: Rebar free high performance ductile concrete beams powered by CFRP and post-tensioning
Beam No. | \(\:{\varvec{\rho\:}}_{\varvec{t}}\) (min) | \(\:{\varvec{A}}_{\varvec{s}}\) (NC beam with same capacity fc = 25 MPa) mm2 | \(\:\varvec{\rho\:}\) % (calculated for an NC beam that has the same capacity) | \(\:{\varvec{\rho\:}}_{\varvec{t}}\) (Max.) % (for NC with fc = 25 MPa) | Increase percentage of \(\:{\varvec{A}}_{\varvec{s}}\) (%) | No. of 8 mm bars |
|---|---|---|---|---|---|---|
B1 | 0.32 | 148.5 | 0.45 | 2.8 | 50.53 | 3 |
B2 | 0.32 | 290.4 | 0.88 | 2.8 | 201.07 | 6 |
B3 | 0.32 | 374.22 | 1.134 | 2.8 | 301.43 | 8 |
B4 | 0.32 | 450.12 | 1.364 | 2.8 | 351.61 | 9 |
B5 | 0.32 | 412.5 | 1.25 | 2.8 | 351.61 | 9 |
B6 | 0.32 | 498.3 | 1.51 | 2.8 | 401.79 | 10 |
B7 | 0.32 | 676.5 | 2.05 | 2.8 | 602.50 | 14 |
B8 | 0.32 | 610.5 | 1.85 | 2.8 | 552.32 | 13 |
B9 | 0.32 | 1036.2 | 3.14 | 2.8 | 953.76 | 21 |
B10 | 0.32 | 930.6 | 2.82 | 2.8 | 853.40 | 19 |
