NEES-EERI Webinar on Precast Concrete Walls

"Precast Concrete Walls for Seismic Resistant-Design: From PRESSS Research to PreWEC" is the 8th in the Research to Practice Webinar Series co-produced by the Network for Earthquake Engineering Simulation (NEES) and EERI. There is no cost to attend. To register, visit PDHs will be available from EERI after the webinar for $30.

Since the Precast Seismic Structural System program (PRESSS) introduced the use of unbonded post-tensioned walls for seismic-resistant design about a decade ago, several research advancements have been made and codification has been completed. To improve cost-effectiveness and resiliency, the precast wall with end columns (PreWEC) was subsequently introduced. Today, an investigation of PreWEC—focusing on understanding the influence of various damping components and interaction between rocking walls and surrounding building components—is being conducted in the NEES Rocking Wall Project (RWP). The webinar will provide (1) a brief summary of the PRESSS wall system, (2) details of PreWEC and its performance, (3) analysis results that examined the interaction between a PreWEC system connected to floors and gravity columns, and 4) directions for implementing ongoing and completed research in design practice. In addition, an opportunity to provide input for the RWP will be provided.

Webinar presenters are Sri Sritharan, Wilson Engineering Professor at Iowa State University, Ames, Iowa, and Suzanne Dow Nakaki, a licensed structural engineer in California and the principal of Nakaki Structural Design Inc., Tustin, California. Both presenters were involved in the PRESSS program and the codification effort. Sritharan and Nakaki are, respectively, the principal investigator and consulting engineer for the ongoing RWP (