LIRA 9.6 R7 (September 19, 2011)

LIRA 9.6

• The ability of data input for calculation on the seismic effect by SP 14.13330.2011 "Construction in seismic regions" (dynamics module 51) has been implemented.
• The ability of data input for calculation of fluctuating component of wind influence by SP 20.13330.2011 "Loads and impacts" (dynamics module 25) has been implemented.
• The ability of determination computational load combinations in conformity with SP 20.13330.2011 "Loads and impacts" has been added.
• The ability of determination computational effort combinations in conformity with SP 20.13330.2011 "Loads and impacts" has been added.
• The calculation of foundation settlements in determining the coefficients of subgrade C1 and C2 in conformity with SP 22.13330.2011 "Foundations of building and structures" has been implemented.
• The ability to import model from Revit Structure 2012 (32-bit) was added.
• The help system was supplemented.

Solver

• The calculation of seismic effect in conformity with SР 14.13330.2011 "Construction in seismic regions" (dynamics module 51) has been implemented.
• Changes in the table of periods have been occured: the distribution factor for its own forms of normalized displayed in such a way that maximum ordinate of its own form was equal to unity. Previously, distribution factor for its own forms of normalized was displayed by matrix of mass Fi(t)*M*Fi = E, making it difficult to check the results manually.
• In calculation of fluctuating component of wind influence by SNIP 2.01.07-85 "Loads and impacts" (dynamics module 21) the calculation of limiting value of the natural frequency and amplification factor for intermediate values of the logarithmic decrement of fluctuations has been fixed.
• The calculation of fluctuating component of wind influence by SP 20.13330.2011 "Loads and impacts" (dynamics module 25) has been implemented.
• The error in special loads for 207 and 208 KE which was shown when setting this type of loads not in a first loading case has been fixed.
• Fixed an error of account the distributed weight of mass on bar, plate and volume elements.

SOIL system

• The calculation of foundation settlement in determining the coefficients of subgrade C1 and C2 by SP 22.13330.2011 "Foundations of buildings and structures" has been implemented.
• The calculation of subgrade coefficients while taking the calculation from LIRA-VISOR for methods 1 and 2 by DBN В.2.1-10:2009 "Soil foundations and foundations of structures" has been fixed.