1. Graduate Research Assistant, Department of Civil & Environmental Engineering, Engineering Research Center for Advanced Technology for Large Structural Systems (ATLSS), Lehigh University, Bethlehem, PA 18015-4729, USA
2. Professor and the Fazlur R. Khan Endowed Chair of Structural Engineering and Architecture, Department of Civil & Environmental Engineering, Engineering Research Center for Advanced Technology for Large Structural Systems (ATLSS), Lehigh University, Bethlehem, PA 18015-4729, USA