College - Author 1
College of Architecture and Environmental Design
Department - Author 1
Architectural Engineering Department
Degree Name - Author 1
BS in Architectural Engineering
Date
6-2025
Primary Advisor
Michael Deigert, College of Architecture and Environmental Design, Architectural Engineering Department
Additional Advisors
Peter Laursen, College of Architecture and Environmental Design, Architectural Engineering Department
Abstract/Summary
This paper presents the development and validation of CHIIP (Continuous Health Information for Infrastructure Protection), a wireless structural health monitoring (SHM) device designed to provide accessible, real-time data on structural performance of building structures following a seismic event. The system integrates inclinometers, accelerometers, linear potentiometers, and strain gauges with ESP32 microcontrollers to create a compact and robust data collection device that can transmit synchronized sensor data via Wi-Fi to a remote server. A web-based interface enables users to access and download live data for rapid structural evaluation. The device was tested in three phases: a small-scale wired baseline test, a small-scale wireless test, and a full-scale test of a steel GERT haunch moment frame connection subjected to cyclic loading per AISC 341 standards. The wireless system produced displacement data that closely matched wired results, validating its accuracy. While some limitations were observed in inclinometer resolution and strain gauge reliability during the full-scale test, the overall performance demonstrated the system’s viability in providing accurate data at 10 outputs per second with little to no interference.
URL: https://digitalcommons.calpoly.edu/arcesp/242