Need help with determining the value A in START-PROF as per SNIP II-7-81

[solidliuhq]

Hi everyone,

I am seeking assistance in determining the value A in START-PROF as per SNIP II-7-81. According to the online help document, the equivalent static analysis method is implemented in START-PROF, which allows for the analysis of seismic resistance with some margin. Inertial forces are calculated using the following formula:

Aj = 1.3Ma * A * Kv

I understand that this formula is derived from equation 16.20 in GOST 32388, and that the variable A comes from SNIP II-7-81. However, I am unsure about how to obtain the value of A. Can anyone guide me on this or provide some examples? I would greatly appreciate your help.

Thank you in advance.

Best regards,

[solidliuhq]

I would like to clarify my question further， Is variable A derived from the acceleration component of Soil in Equation (2) in Section 2.5? , equation(2) is Soik=Qk*A*βi*Kw*Nik， the acceleration component is this formula is A*βi? β can take the maximum is 2.5, A take from the tabie16.1 in GOST 32388?”

[Alex Matveev]

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