Bending Moment Capacity

[fsapostolou]

Dear Seismosoft team,

I have a question regarding the bending moment capacity of members when the check is performed after a linear dynamic analysis (Checks by KAN.EPE). Is the capacity presented by the software based on Annex 7A, equation (A.6.a) of KAN.EPE or something else?

Best regards

[z.gronti]

Dear fsapostolou,

as it is written in SeismoBuild's Help System (https://help.seismosoft.com/seismobuild ... pacity.htm)
The bending moment capacity of beams, columns and walls with prismatic cross section is calculated according to paragraph 4.1 of D. Biskinis and M. N. Fardis (2009), while for the bending moment capacity of circular columns paragraph 4 of Biskinis and M. N. Fardis (2013) is employed.

[fsapostolou]

So, the software considers confinement, which can lead to higher strengths. However, can it also account for column cover spalling? Spalling may limit the benefits of confinement and should be carefully checked when concrete strains exceed the crushing strain of unconfined concrete

[seismosoft]

The program employs the code-based expression, in order to be 100% compatible with the supported standards. The spalling is considered in the analytical calculations by explicitly modelling the confinement or not in the different concrete regions of the cross section (core, cover etc.). Instead, the bending capacity is calculated according to the code-based equations.

Seismosoft Support