# D13.B.3.4 Eccentric Compression/Tension Members

Eccentric compression or tension members are subjected to simultaneous action of axial force and bending moment. Bending moment appears due to eccentric application of longitudinal force or due to transverse force.

Stress in eccentric compression/tension members is obtained as a sum of stresses due to axial force and bending.

Following the requirements of clause 5.25 of SNiP 2.01.07.- 81* resistance of eccentric compression/tension member taking into consideration condition R_{y}< 530 MPa, τ < 0.5R_{s}
and N/(A_{n}R_{y}) > 0.1 is calculated by formula 49, and in other cases-by formula 50. Calculations of stability verification are performed according to requirements of clauses 5.27, 5.30, 5.32 or 5.34.

Calculation for strength of eccentric tension members is made according to formula 50 of SNiP 2.01.07.- 81*.

When reduced relative eccentricity m_{ef}> 20 eccentric compression members are calculated as flexural members (N = 0), when m_{ef}< 20 strength by formula 49 is not verified (clause 5.24).