Consider the simply supported T beam shown below. Calculate: • The instantaneous deflection (camber) at transfer of pres
Posted: Wed May 04, 2022 9:23 am
Consider the simply supported T beam shown below. Calculate: • The instantaneous deflection (camber) at transfer of prestress • The deflection under service loads • The additional long-term deflection under dead load and prestress using the heuristic rule (rule of thumb) The total deflection including long-term deflection Given: O A = 272 in.² o fpu = 270 ksi o fpe = 150 ksi o I = 14,970 in. oyt = 9.06 in. Oyb = 14.94 in. o f = 8,000 psi o fci = 5,600 psi o fti,all = -224 psi o fci,all = 3,360 psi oft,all = -536 psi o fcall = 3,600 psi = o Aps 9 × 0.5-in. strands ○ Eps = 27,000 ksi o Losses 20% O WLL = 600 plf 28 in BOSTING I 12.54 6.07 CGC 50 ft 4 in 20 in FRINGEMEN 8 in