Csi Sap2000 V15

Event-to-event solution strategy implemented as an option for nonlinear direct-integration time-history load cases. Alignment of shell local axes in generated bridge models has been enhanced. Loading A new seastate load pattern has been added to allow the definition of pitch, roll, and yaw scenarios. Loading Russian response spectrum function added. Simple arc for tendon profile definition.

Table output can now request the correspondence between the response components at a single location for additive-, range-, physics books for class 9 and enveloping-type load combinations. Civil Engineering Community.

DirectX graphics is now the default. The handling of convergence tolerances for time-dependent behavior during staged-construction analysis has been improved to better enforce equilibrium after large load increments.

Vietnamese Material Libraries Vietnamese concrete and rebar material libraries now available. The concrete U-girder frame section can now also be used to model steel tubs in the Bridge Modeler.

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Soil pressure results are now available in the database tables. All load types in a load case can be graphically displayed in a single view.

The speed of analysis has been increased. Spectral matching of time history functions for a given response spectrum has been implemented. The effect of reinforcing steel on the axial creep and shrinkage behavior of concrete in columns and walls is now included in the time dependent staged-construction analysis.

Time-History Load Cases Velocity and acceleration response for time-history load cases can now be plotted. Variable girder spacing along the length of the bridge superstructure is now available. Basic moving-load analysis has been retained for non-bridge applications. Dominican Republic response spectrum definition. Base reactions for response-spectrum and modal time-history analysis have been improved for springs and grounded link supports to better capture missing-mass effects.

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Dynamics Material-based damping is now available for linear and nonlinear direct-integration time-history analysis. Modify undeformed geometry feature enhanced to allow applying the modification to a selection of joints, as well as limiting direction of modification. Complex Models can be generated and meshed with powerful built in templates. The default material properties for concrete have been modified to improve convergence behavior. The exported files are still compatible with the older format if fewer than nodes are exported.

The modeling of steel-girder diaphragms for steel girder bridges has been improved to provide better support for the lower flange. Solid rectangular and circluar steel shapes available as new frame section properties. The DirectX graphics functionality has been enhanced.

The Singapore national annex has been added for auto-seismic loading and response spectrum function. Analysis New operation added for staged-construction load cases to allow changing link properties.

This device is a linear spring in series with a dashpot whose force-velocity relationship exhibits bilinear viscous behavior, typical of certain oil dampers having a relief valve. Now you can choose either option. The Chinese section-property database files have been enhanced by adding new sections. Load optimization feature to determine the optimal loading scale factors to achieve goals and limits on displacement and force response throughout the structure.

Modeling Pipes and plates templates have been added to the template library. Diaphragm constraint definition. Floating forms for multiple use. Russian material property library enhanced.

The window refresh speed for Classical Plus graphics has been improved. Event-to-event solution strategy implemented as an option for nonlinear direct-integration time-history analysis. Built-in European concrete and steel material properties. The responsiveness of the user interface has been improved.

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Modal time-history analysis for dynamic bridge loading now runs considerably faster. This includes a collection of common steel shapes used in Nordic countries. The displacements for constrained joints in staged construction are no longer updated for deflection until they are actually added to the model. New materials have been added for China and Spain. This intuitive interface allows you to create structural models rapidly and intuitively without long learning curve delays.

The longitudinal discretization of bridge models is now more uniform in complex models. The center of mass is now reported in the Assembled Joint Masses table for each mass source.

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Recent Enhancements

Layered shell definitions. Properties are segregated by region and by code-standard within these files as well as when using the materials in the graphical user interface. Stiffness-proportional damping now uses initial stiffness instead of tangent stiffness to improve the consistency of results and convergence behavior. Italian material property definitions have been added. Guide Structure operation for locating added members during staged construction analysis.

Displacement contours plots displayed on faces of solid elements. Several edit menu forms enhanced to allow them to remain open for repetitive use with an apply button.