Table 4 Comparison of experimental and FE peak strains for test beams.
Beam ID | Results | Strain in bottom rebars at mid-span (με)a | Strain in top rebars at mid-span (με)a | Strain in first FRP layer at mid-span (με) | Strain in second FRP layer at mid-depth of opening edge (με) | Mid-span steel plate strain at mid-depth of top chord (με)a | |
|---|---|---|---|---|---|---|---|
At mid-depth of bottom chord | At mid-depth of top chord | ||||||
BC-N-4PB | EXP | NA | − 14,841 | – | – | – | – |
FE | 69,540 | − 14,036 | – | – | – | – | |
EXP/FE | – | 1.06 | – | – | – | – | |
BC-O1-4PB | EXP | 26,705 | − 7683 | – | – | – | – |
FE | 31,354 | − 7797 | – | – | – | – | |
EXP/FE | 0.85 | 0.99 | – | – | – | – | |
BC-N-CPL | EXP | NA | − 5407 | – | – | – | – |
FE | 81,413 | − 4980 | – | – | – | – | |
EXP/FE | – | 1.09 | – | – | – | – | |
BC-O1-CPL | EXP | 2609 | 434 | – | – | – | – |
FE | 2583 | 460 | – | – | – | – | |
EXP/FE | 1.01 | 0.94 | – | – | – | – | |
BS1-O1-CPL | EXP | 2549 | 350 | 2526 | 858 | 1931 | – |
FE | 2711 | 380 | 2771 | 691 | 2116 | – | |
EXP/FE | 0.94 | 0.92 | 0.91 | 1.24 | 0.91 | – | |
BC-O2-CPL | EXP | NA | 19,297 | – | – | – | – |
FE | 1303 | 21,894 | – | – | – | – | |
EXP/FE | – | 0.88 | – | – | – | – | |
BS2-O2-CPL | EXP | 1990 | 8995 | 1366 | – | 762 | 2807 |
FE | 2296 | 7768 | 1202 | – | 824 | 3033 | |
EXP/FE | 0.87 | 1.16 | 1.14 | – | 0.92 | 0.93 | |