ATLSS Engineering Research Center 

at Lehigh University

Welcome to Lehigh University’s Advanced Technology for Large Structural Systems (ATLSS) Engineering Research Center. Led by Bruce G. Johnston Professor of Structural Engineering, James Ricles, Ph.D., P.E., ATLSS is a nationally recognized hub for research and education in infrastructure structures and materials. Explore our people, projects, programs, and educational opportunities to discover how ATLSS can support your goals and benefit your organization.

News

April 4, 2024

ATLSS announces leadership transition

Two researchers in Lehigh University’s Advanced Technology for Large Structural Systems (ATLSS) Engineering Research Center will take on new leadership roles effective July 1, 2024.

October 16, 2023

Frangopol wins inaugural EuroStruct International Award of Merit

Professor Dan M. Frangopol is the winner of the EuroStruct2023 International Award of Merit presented by the EuroStruct Executive Committee in recognition of outstanding contributions to bridge and structural asset management and structural engineering.

August 10, 2023

NHERI Lehigh Testing Shows Effectiveness of Rolling Pendulum Isolation Systems in EQ Damage Mitigation

Tests of a rolling-pendulum base-isolation system were performed as part of NSF award CAREER: Mitigation of Seismic Risk to Critical Building Contents via Optimum Nonlinear 3D Isolation (PI- Scott Harvey, University of Oklahoma, award #1943917). The work involved multi-directional real-time hybrid simulations (RTHS) of a rolling pendulum system for seismically isolating equipment in mission-critical buildings.

March 21, 2023

How Do Powerful Winds Affect Tall Buildings?

Lehigh researchers co-organize and host a collaborative workshop to demonstrate advancements in hybrid simulation to investigate how high winds impact the structural integrity of a 40-story building.

October 25, 2022

Mentoring the Next Generation of Structural Leaders

A Lehigh civil engineering student team, guided by faculty mentor Prof. Clay Naito, won the Best Video Award in the 2022 Precast/Prestressed Concrete Institute (PCI) Engineering Design Competition. PCI’s “Big Beam competition,” now in its 22nd year, teaches college students from across the United States structural engineering skills in an applied learning environment.

August 11, 2022

Collingwood Prize honors finite-element fatigue analysis paper

ASCE has honored the writing team of Joseph Saunders, Ph.D., A.M.ASCE; Yixin Chen, S.M.ASCE; Jayne A. Marks, P.E., M.ASCE; Ian C. Hodgson, P.E., S.E., M.ASCE; Richard Sause, Ph.D., P.E., M.ASCE; and Brian M. Kozy, Ph.D., P.E., M.ASCE, with the 2022 Collingwood Prize for the paper “Finite-Element Fatigue Analysis of a New Rib-to-Floor Beam Connection for Orthotropic Steel Decks,” Journal of Bridge Engineering, Feb. 2021.

August 1, 2022

Expanding ATLSS Cyber-Physical Testing Capabilities

The NHERI Lehigh University Experimental Facility recently unveiled expanded lab space and new equipment for conducting cyber-physical experiments. The enlarged facility opens the door wide for natural hazards researchers to explore structural mitigation solutions for windstorms and earthquakes. Part of the National Science Foundation-funded Natural Hazards Engineering Research Infrastructure, the NHERI Lehigh Experimental Facility specializes in cyber-physical testing, a broad term that encompasses hybrid simulation, including real-time, multi-directional hybrid simulation experiments. READ MORE >>