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01/07/2011
A new version of SeismoStruct has been released, featuring a number of new capabilities:
New general features:
1) Software licensing facility introduced in the program
2) Automatic checking of a release of a new version
3) Prevent false virus warnings (mainly with Nod32)
4) Avoid incompatibilities with background monitoring software DeepFreeze
5) Uninstall shortcut now available in the Start menu folder (i.e. no need to go to Control Panel to uninstall the software)
New modelling/analysis features:
1) Activation and deactivation time/L.F. for all elements (repair elements refrm/relnk no longer required)
2) Automatic computation of confinement factor, for constant confinement concrete models
3) Failure strain (fracture/buckling) introduced in steel models
4) Combined Jacobi+Ritz algorithm, for eigenvalue analysis
5) Improved Force-based Convergence Criteria (it was excessively stringent)
6) Adaptive Response Control introduced (of relevance in particular for 3D models)
7) New response curves (multi-linear and smooth curves)
8) Commercial steel profile sections now available
9) New composite circular section (ccs) and reinforced concrete box-girder section (rcbgs)
10) Possibility of introducing rebars in composite sections
11) Possibility of defining eccentric T-shaped reinforced concrete section (e.g. L-shaped)
12) Stress-recovery is now activated by default on all new models (even if it slows down analysis, so as to ensure correct internal forces output when in presence of distributed element loading)
13) Penalty Functions now used by default, as opposed to Lagrange Multipliers (the latter tend to lead to very slow analyses, especially for large models)
14) Disabled, by default, isotropic hardening in stl_mp material model, by setting parameters a3=0 & a4=1 (to avoid unrealistically large member capacities under large cyclic straining)
New pre-processing features:
1) Minimum value of integration sections for infrmFB elements set to 3
2) infrmFB, rather than infrmDB, elements automatically generated in the Wizard facility
3) Adaptive Response Control set as default Loading Phase for Adaptive Pushover in the Wizard-created models
4) Concrete and steel material classes introduced (for easier material model definition)
5) Units Selector moved out of the Project Settings module
6) Possibility of zooming-in on cross-sections module
7) Improved reinforcement patterns in rcrs and rcjrs sections
8) New default values in inf_strut curve
9) Perfomance criteria introduced in Wizard-created models
10) Warning message when trying to use interstorey drift scaling in 3D Adaptive Pushover
11) Default number of steps in Wizard-created pushover models set to 50 (100 was excessive)
12) Moved the Geometric Nonlinearity option to the 'Analysis' tab in the Settings
13) Changed concrete models acronyms (which now refer to their authors)
14) Less commonly used material models deactivated by default (they can be activated in the Settings menu, in the Constitutive Moldes tab)
15) Removed parameters 'minimum/maximum natural frequency of interest' and 'frequency of shift' from Lanczos settings (these are of essentially no use for standard users)
New post-processing features:
1) Output of nodal masses (in the 'Modal/Masses Quantities' module)
2) Possibility of visualising absolute displacement values in 'Deformed Shape' module
3) Removed avi movie creation facility, due to current incompatibilities with external library
4) Extended Text Output capabilities, including the possibility of outputing different response parameters in separate files and of outputting response quantities for all nodes and elements, independently of what is selected in the Anaysis Output module
5) convergence norms at each analysis step are shown during the analysis
Bug fixes:
1) Eliminated possibility of copying&pasting in the Restraints module, to avoid errors with the models
2) In the Wizard facility, prevented the creation of 3D models with one frame only (due to incompatibility with the automatic creation of diaphragm constraints)
3) Corrected bug in the output of internal forces in truss elements (unrealistically large values)
4) infrmDB and infrmFB elements are now behaving as expected when geometric nonlinearity is de-activated
5) Corrected bug in the rendering of elastic elements (appeared rotated about their own axis)
6) Corrected bug in link element with asymmetric response curves (applying a force in the positive direction, was activating the stiffness in the negative one)
7) Corrected bug in computation of self-weight of elastic elements
8) Corrected minor bugs in stl_mn and stl_mp material models (mainly related to spurious results in short cycle reversals)
9) User-friendly message is now shown when input time-history file exceeds 64000 lines
10) Corrected GUI error when a user, by mistake, repeats a node when defining an infill panel element
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Seismosoft Ltd | Via Boezio 10, 27100 Pavia, Italy |
info@seismosoft.com | VAT: 02763660830 | Credits
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