"Seismic Collapse Analysis of Timber Arch Structures". This project uses the FEMA P-695 Methodology tho assess the collapse performance of timber arch structures. The results of the research will be used to establish design values for use in the ASCE 7 Minimum Loads Standard.
"Development of New Structural Systems for Performance Based Earthquake Engineering". This is a main research focus which aims to develop new types of structural systems that are inherently optimized for meeting multiple limit state performance objectives.
"Seismic Behavior of Structures Incorporating Viscous Dampers." This project is looking at methodologies for using viscous dampers for controlling drift and dynamic stability of steel frame structures. Extensive use is being made of incremental dynamic analysis.
"Wind Drift Analysis and Design of Metal Buildings". This project seeks to develop a better understanding of the behavior of metal buildings under wind load, and then to develop improved analysis methods. The project is using both analytical and experimental approaches. In the experimental phase, a full-scale metal building will be tested under a variety of static loads. The project is funded by the Metal Building Manufacturer's Association, and funds one M.S. student. Dr. Cris Moen is a co-principal investigator.
"Development of High Damping Concrete". In this project, we are attempting to develop a new type of concrete that has much higher damping than that supplied by normal concrete. The higher damping is provided by adding rubber or latex to the concrete mix. Other approaches, based on intentionally damaging the concrete, but holding everything together with steel fibers, is also being attempted. The project is sponsored by Nucor Steel, and by the Center for Extreme Load Effects on Structures. The project supports one Ph.D. student. Drs. Murray, Weyers, and Dowling (from the ESM department) are co-investigators.
"Update of NONLIN and EQ-Tools Computer Programs". In this project, we are updating two computer programs used for earthquake engineering, and in particular, for earthquake engineering education. The update involves the development of a new nonlinear dynamic analysis engine, improvement of ground motion evaluation tools, and update of all graphics using OpenGL. The program is being developed in VB.Net, version 2008. The project is sponsored by the National Institute of Building Science. One M.S. student is working on the project.
"Guide to the Application of the ASCE 7-05 Seismic Load Provisions". This book, to be published in late Summer of 2009, provides a set of examples and related discussion related to the use of the ASCE 7-05 Loads Standard. The book is published by ASCE Press.
Charney, F.A., and McNamara, R.J., â€œA Method of Computing Equivalent Viscous Damping Ratios for Structures with Added Viscous Dampingâ€, ASCE Journal of Structural Engineering, Vol. 134, No. 1, pp 32-44. (January, 2008)
Charney, F.A., and Pathak, R., â€œSources of Elastic Deformations in Steel Frame and Tube Structures, Part 1: Simplified Subassemblage Modelsâ€, Journal of Constructional Steel Research, Vol. 64, No. 1, pp 87-100. (January, 2008).
Charney, F.A., and Pathak, R., â€œSources of Elastic Deformations in Steel Frame and Tube Structures, Part 2: Detailed Subassemblage Modelsâ€, Journal of Constructional Steel Research, Vol. 64, No. 1, pp 88-100. (January, 2008.)
Symans. M.D., Charney, F., Constantinou, M.C., Kircher, C., Johnson, M.W, and McNamara, R.J. â€œEnergy Dissipation Systems for Seismic Applications: Current Practice and Recent Developmentsâ€, ASCE Journal of Structural Engineering, Vol. 134, No. 1, pp 3-21. (January, 2008).
Charney, F.A., "Unintended Consequences of Modeling Damping in Structures", ASCE Journal of Structural Engineering, Vol. 134, No. 4, pp 581-592. (April, 2008)
Charney, F.A., "A Transformational Approach to Teaching Matrix Structural Analysis, and Implementation using Mathcad", Proceedings of the 18th Analysis and Computation Conference, Vancouver, BC, April, 2008.