Development of force-limiting deformable connection for earthquake-resistant buildings
In 2011, the PIs Robert B. Fleischman, Richard Sause, and José I. Restrepo, recruited researchers to work on their vision outlined in the project entitled NEESR: Inertial Force-Limiting Floor Anchorage Systems for Seismic Resistant Building Structures funded by the National Science Foundation (Award No. CMMI-1135033) and the George E. Brown, Jr. Network for Earthquake Engineering Simulation Research (NEESR) program (Award No. CMS-0402490).
Under the supervision of Prof. Richard Sause at Lehigh University, Georgios Tsampras conducted research focusing on one of the goals of the above project. This goal and the associated objectives are outlined below:
Develop and evaluate a deformable connection that limits the earthquake-induced horizontal inertial forces transferred from each floor of the flexible gravity load resisting system to the stiff lateral force resisting system of an earthquake-resistant buildings.
Create physical embodiments of the force-limiting deformable connection
Assess experimentally the force-limiting deformable connection experimentally
Develop a preliminary force-based design procedure for the force-limiting deformable connections
Validate the preliminary design procedure for the force-limiting deformable connection using numerical earthquake simulations
The poster on the left summarizes visually the objectives of the project.
Georgios Tsampras, Richard Sause, Robert B. Fleischman, José I. Restrepo (2017) Experimental study of deformable connection consisting of friction device and rubber bearings to connect floor system to lateral force resisting system, Earthquake Engineering & Structural Dynamics, 47 (4), 1032-1053, doi: 10.1002/eqe.3004
Georgios Tsampras, Richard Sause, Robert B. Fleischman, José I. Restrepo (2016), Experimental study of deformable connection consisting of buckling-restrained brace and rubber bearings to connect floor system to lateral force resisting system, Earthquake Engineering & Structural Dynamics, 46 (8), 1287-1305, DOI:10.1002/eqe.2856
Georgios Tsampras, Richard Sause, Dichuan Zhang, Robert B. Fleischman, José I. Restrepo, David Mar, Joseph Maffei (2016), Development of deformable connection for earthquake-resistant buildings to reduce floor accelerations and force responses, Earthquake Engineering & Structural Dynamics, 45 (9), 1473–1494, doi:10.1002/eqe.2718
Tsampras, Georgios. “Force-Limiting Floor Diaphragm Connection for Earthquake-Resistant Buildings.” PhD, Lehigh University, 2016. https://preserve.lehigh.edu/etd/2851.
Robert B. Fleischman, University of Arizona
Richard Sause, Lehigh University
José I. Restrepo, University of California San Diego
NEES@Lehigh staff and ATLSS Center staff