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PATENTED SEISMIC EVALUATIONS
We offer rapid and detailed seismic screening based on testing.
Traditional methods of seismic evaluations require highly detailed structural models of a building to be created. Our patented approach to seismic analysis allows for rapid seismic evaluations based solely on on-site testing. Testing can be conducted on buildings where structural plans are not readily available and can be done rapidly -- ideal for large portfolios. These tests can be done on global or component-based levels in order to determine the likelihood of damage, the estimated damage costs and the estimated repair times for any given structure.
Sensequake's seismic analysis services can be used on their own to quickly quantify and assess seismic risk or to optimize seismic rehabilitation designs. The detailed performance-based evaluation conducted by sensing is the ideal approach for complex structures, historic buildings with few structural drawings, large building portfolios, or small structures without needing detailed finite-element models.
Seismic
Analysis
Calculation of global seismic demands based on time-history analysis without finite element models including:
• Generating ground-motion time histories
• Response histories such as drift ratios, displacements,
accelerations, forces, base shear and overturning
moments at any location and direction on the building
• Calculations of maximum global seismic demands
along with the height of the building for the desired
number of ground motions
• Modifying ambient vibration modal properties to
converting them to the higher shaking level modal
properties based on Sensequake proprietary
databases
• Displacement and acceleration response spectra at
any location in the building
• Determining the static force to design non-structural
components
• Two-phase finite element model optimization. Initial
phase based on modal properties and a second phase
by comparing the seismic demands generated by our
approach and those of the model in order to calibrate
it to the building's actual properties within a desired
accuracy
Global Level Seismic Damage Prediction
Compare global seismic demands with the damage thresholds of various standards and codes:
• Global seismic evaluation of structural components
based on HAZUS and ASCE 41-13 criteria
• Seismic evaluation of drift-sensitive non-structural
components such as infill walls
• Seismic evaluation of acceleration-sensitive non-
structural components such as piping systems,
suspension ceilings and general equipment
Large scale portfolio triage and management for prioritizing and optimizing maintenance budgets and optimizing decision making
Component Level Seismic Damage Prediction
An in-depth, component-based analysis where the simulated seismic demands are compared to the FEMA P58 standards allowing us to quantify:
• Component-level damage severity
• Repair time estimations
• Expected repair costs
Rate building performance based on USRC and REDi guidelines and assess their expected level of seismic performance
Contact us today for more information on how we can help your projects
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