Full Session with Abstracts
Hurricane Harvey’s landfall near Rockport, TX in August 2017 caused widespread damage to various structural typologies, including many steel and light-gauge metal structures. The various damage states of these steel structures, coupled with contours of hurricane wind speeds based on actual measurements, provide valuable indications to the resistances of the various components of these steel structures. Forensic investigations of structures damaged by severe windstorms give valuable insights into wind speeds, wind-structure interactions, and effective construction techniques. These investigations further assist engineers in designing structures to better protect life and property. However, the detailed measurements of structural members and deflections have traditionally been difficult to obtain due to time constraints (before the removal of damage evidence in cleanup operations) and safety concerns (e.g., precarious structures and debris fields). Recently, lidar and UAS platforms (commonly known as drones), have made rapid, non-contact data collection feasible for the purposes of three-dimensional scene preservation and subsequent detailed analysis. The project team conducted an NSF-RAPID reconnaissance mission for the collection of perishable damage data for steel structures damaged by Hurricane Harvey. This presentation work details the subject selection criteria, data acquisition methods for various types of structures in the damage reconnaissance, and the public dissemination of the damage data through DesignSafe-ci.