Load Testing of Existing Concrete Structures (Part 2)-Load Testing of Concrete Structures An Engineer’s Perspective (Recorded presentation)

Load Testing of Concrete Structures An Engineer’s Perspective (Recorded presentation)

Video Transcription

Video Summary

Filippo Mazzetti from Simpson, Gampertz & Hager presented a case study on load testing for a hospital renovation in New York City. The project involved evaluating existing precast concrete planks on the hospital's podium for their ability to support a new green roof. Key focus areas included the condition and adequacy of these planks, originally constructed in 1970. Mazzetti outlined the test setup using finite element analysis and employed steel plates as counterweights. Temperature effects were a significant concern, influencing deflection measurements. Mazzetti highlighted the importance of considering temperature gradients during load testing, as they can impact deflection results, potentially causing discrepancies. The data showed notable differences when temperature effects were factored in, emphasizing the need for engineers to account for these variables. The presentation concluded with an emphasis on ongoing efforts to incorporate such considerations into ACI guidelines to better inform testing protocols.

Keywords

load testing

hospital renovation

precast concrete

finite element analysis

temperature effects

ACI guidelines