t |
Time history analysis: current point in time on the time axis Creep/shrinkage: concrete age of the considered element at the current point in time |
t0 |
C&S: Concrete age of the considered element when loading was applied |
ts |
Only for shrinkage: Concrete age when the shrinkage process starts |
tstart |
Start time of the current action on the global time axis |
E28 |
Young's Modulus for the material at 28 days (= calculation value) |
Ax |
The cross sectional area of the considered element |
Fc28 |
Characteristic strength (cylinder strength) for the material at 28 days (used for the calculation of the creep coefficient according Norway Standard NS3473 and CEB90) |
Fcub |
Characteristic cube strength for the material after 28 days (used for the calculation of the creep coefficient according for some design codes) |
CF |
Consistency code of the concrete (used for creep analysis acc. CEB78 only) |
U |
Exposed outside perimeter of the element cross section |
UIN |
Inside perimeter of the element cross section |
RH |
Relative Humidity on site (long-term average value) |
ZF |
Cement hardening parameter of the current material (used for the calculation of creep coefficients acc. Norway Standard, CEB90, BS5400 and Hong Kong Standard) |
TMP |
The ambient temperature in the vicinity (long-term average value) |
OMEGA |
Current frequency (as angular velocity in rad/sec). Used for evaluating earthquake response spectra (abscissa value of the prescribed spectra) |
GAMMA |
Specific weight is needed for Norwegian code (creep and shrinkage) |
WCR |
Water cement ratio (used for calculation of creep coefficient according BS5400 and Hong Kong Standard) |
CECO |
Cement content in concrete (kN/m3) (used for calculation of creep coefficient according to BS5400 and Hong Kong Standard) |
qlen |
Evaluation of influence lines: length of the loaded sections |
RPR |
Stiffness ratio steel - concrete (used for calculation of creep coefficient and according to BS5400 and Hongkong Standard |
RelSig |
Relationship Sig-pr/SigRef, used for calculation of steel relaxation |
RELCL |
Relaxation class, used for calculation of steel relaxation |
IQVAR |
Control variable for variable load (load type QVAR) |