Siren
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Associated Products

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Siren Overview

Siren allows investigation of a site response to a seismic event.

General features:

  • Wizards to guide users in setting up the model
  • Units can be chosen from preset SI, kN-m, kip-ft of kip-in unit sets or specified individually for each component
  • Import of excitation time-histories in a variety of formats
  • Graphical representation of results
  • Data checking to identify invalid or inconsistent data

In Siren the site is modelled as a column of soil overlying bedrock. Properties are assigned to the bedrock and the soil which is modelled as a non-linear stress-strain curve which incorporates hysteresis effects. Excitation is assumed to apply at the bedrock level and an explicit time integration scheme is used to calculate the soil response with time.

Features

  • Multiple soil stess-strain curves and transmitting or non-transmitting boundaries
  • Control of integration time step and output time step
  • Graphical output of time histories: displacements, velocities, accelerations, stresses and strains
  • Graphical output of stress-strain histories
  • Calculation of response spectra
  • Export to Sigraph for post-processing

The user documentation gives full details of the capability of Siren. This is available both in PDF format and In online format from the Help menu within the program.

Case Studies

You can purchase Siren as part of our Seismic Suite software bundle. To view the bundle go to our online store for more details.