CSN 73 1004
The following formula is used in Czech standard CSN 73 1004 to calculate critical force Ncr of micropile in elastic subsoil:
where: | Ea*Ia | - | bending stiffness of micropile steel section |
Ecm | - | elastic modulus of concrete | |
Ic | - | moment of inertia of concrete section | |
γc | - | reduction factor for concrete | |
Ez | - | elastic modulus of subsoil (horizontal direction) |
Literature:
CSN 73 1004 (July 2020)