Real-time Hybrid Simulations of a Large-scale Steel Structure with Nonlinear Viscous Dampers

Real-time Hybrid Simulations of a Large-scale Steel Structure with Nonlinear Viscous Dampers Real-time Hybrid Simulations of a Large-scale Steel Structure with Nonlinear Viscous Dampers

Engineers re-create tsunami debris impacts to measure their force

The researchers' ultimate goal is to improve building designs so structures are built to better withstand the forces generated from tsunami debris

Engineers re-create tsunami debris impacts to measure their force Engineers re-create tsunami debris impacts to measure their force

NEESR: Enhancement of Seismic Performance and Design of Partially Grouted Reinforced Masonry Buildings

Full-scale testing of partially-grouted, reinforced concrete masonry wall structure

NEESR: Enhancement of Seismic Performance and Design of Partially Grouted Reinforced Masonry Buildings NEESR: Enhancement of Seismic Performance and Design of Partially Grouted Reinforced Masonry Buildings

PBD for Seismic Hazard Mitigation

Lehigh is conducting experiments for developing Performance-based seismic design procedures for buildings with supplemental passive damping systems.

PBD for Seismic Hazard Mitigation PBD for Seismic Hazard Mitigation

Facility

Welcome to NEES@Lehigh. Click to read about our Facility

Facility Facility

Real-time Hybrid Simulations of a Large-scale Steel Structure with Nonlinear Viscous Dampers Subjected to the Maximum Considered Earthquake Hazard Level

July 18, 2013 between 9 am and 4 pm EST The NEESR project entitled NEESR-CR: Performance-Based Design… [more]

Real-time Hybrid Simulations of a Large-scale Steel Structure with Nonlinear Viscous Dampers Subjected to the Maximum Considered Earthquake Hazard Level Real-time Hybrid Simulations of a Large-scale Steel Structure with Nonlinear Viscous Dampers Subjected to the Maximum Considered Earthquake Hazard Level

Safety

Please read our Safety Manual before conducting an experiment at NEES@Lehigh.

Safety Safety

Welcome to NEES@Lehigh

The US National Science Foundation has established the George E. Brown, Jr. Network for Earthquake Engineering Simulation (NEES) as a national, networked collaboration of geographically-distributed, shared-use experimental research equipment sites. Each site has telepresence and teleoperation capabilities, computer models and physical test specimens, which will transform the environment for earthquake engineering. NEES@Lehigh is an equipment site specializing in real-time multi-directional (RTMD) testing for earthquake simulation of large-scale structural systems.


The Lehigh University RTMD facility located in the ATLSS Research Center (IMBT Laboratory) allows for real-time multi-directional hybrid seismic testing, combined with real-time analytical simulations, to investigate the seismic behavior of large-scale structural components, structural sub assemblages, and super assemblages (systems). This is achieved through the combined use of dynamic actuators, reaction wall, strong floor and high performance computing. This facility is also designed to support multi-site distributed hybrid testing methods where the substructures involved are at different geographic locations connected by the NEES network.

News and Events

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NEESreu Program Highlights at Lehigh University, Summer 2013

Friday, October 25, 2013

The students that participated in the NEES@Lehigh REU program are recognized.

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Job Opening at ATLSS

Wednesday, October 2, 2013

Temporary engineering technician position at the ATLSS laboratory.

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2013 REU Schedule Posted

Monday, June 3, 2013

The 2013 REU Schedule has been posted.

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[All News and Events]

Project Spotlight

Engineers re-create tsunami debris impacts to measure their force

In a tsunami, devastation is created by far more than the wave itself. Debris that hits homes and other structures plays a huge role in a tsunami’s destructive power. But until now, engineers could only estimate the forces at work when debris, such as a floating telephone pole, hits a house. With support from the […]

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[View project page]

Testing of NEESR-CR: Post-Tensioned Coupled Shear Wall Systems at Lehigh University Friday, November 08, 2013

This NEESR project entitled NEESR-CR: Post-Tensioned Coupled Shear Wall Systems (PIs: Yahya Kurama, University of Notre Dame, and Michael McGinnis, University of Texas at Tyler) is conducting large-scale experiments and accompanying numerical simulations of post-tensioned coupled shear wall structures at the Real-time Multi-directional (RTMD) Earthquake Simulation Facility, the Lehigh NEES Equipment Site. The goal of this NEESR project is to develop a new type of earthquake-resistant reinforced concrete (RC) coupled wall system with significant performance and economic benefits over conventional coupled wall systems.

[Read full article]

[View project page]

Full-scale testing of partially-grouted, reinforced concrete masonry wall structure

***Active Testing October 4th between 5am and 5pm EDT¬†*** NEES@Lehigh with University of Minnesota is testing a full-scale partially-grouted, reinforced concrete masonry wall structure. The goal for this NEESR project is to enhance our understanding of the mechanics and inelastic behavior of these structures at the component and system levels, and to validate the proposed […]

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[All Project Spotlights]

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