UPV

Ultrasonic Pulse Velocity

We start our notes on NDT method for condition assessment of infrastructure facilities by presenting the Ultrasonic Pulse Velocity – UPV method. The UPV is the one of the most basic acoustic techniques, however, it remains an effective and reliable test method for quality control of concrete materials, and detecting damages in structural components. The Read more about Ultrasonic Pulse Velocity[…]

NDT Methods for Condition Assessment

This article is the first part of a series of technical notes I have prepared on the theory and application of NDT methods for condition assessment of infrastructure facilities. In this series of articles, I will review different NDT methods that are common in the evaluation of construction materials, mechanical and structural properties, and detection and Read more about NDT Methods for Condition Assessment[…]

Scaling Earthquake Records to Match Target UHS

Scaling Simulated Seismic Records to Match Target UHS

This brief technical note describes a procedure for selecting and scaling simulated seismic records to match target UHS (uniform hazard spectrum). The target UHS described in the National Building Code of Canada (NBCC 2005) has 2% chance of exceedance in 50 years. It depends on location and site condition. It is often useful, when performing time Read more about Scaling Simulated Seismic Records to Match Target UHS[…]