Contributors

Boring, Delbert F., P.E. Senior Director, Construction Market, American Iron and Steel Institute, Washington, D.C. (section 6 building design criteria)

Brockenbrough, Roger L., P.E. R. L. Brockenbrough & Associates, Inc., Pittsburgh, Pennsylvania (section 1 properties of structural steels and effects of steelmaking and fabrication; section 10 cold-formed steel design)

Cuoco, Daniel A., P.E. Principal, LZA Technology/Thornton-Tomasetti Engineers, New York, New York (section 8 floor and roof systems)

Cundiff, Harry B., P.E. HBC Consulting Service Corp., Atlanta, Georgia (section 11 design criteria for bridges)

Geschwindner, Louis F., P.E. Professor of Architectural Engineering, Pennsylvania State University, University Park, Pennsylvania (section 4 analysis of special structures)

Haris, Ali A. K., P.E. President, Haris Enggineering, Inc., Overland Park, Kansas (section

7 design of building members)

Hedgren, Arthur W. Jr., P.E. Senior Vice President, HDR Engineering, Inc., Pittsburgh, Pennsylvania (section 14 arch bridges)

Hedefine, Alfred, P.E. Former President, Parsons, Brinckerhoff, Quade & Douglas, Inc., New York, New York (section 12 beam and girder bridges)

Kane, T., P.E. Cives Steel Company, Roswell, Georgia (section 5 connections)

Kulicki, John M., P.E. President and Chief Engineer, Modjeski and Masters, Inc., Harrisburg, Pennsylvania (section 13 truss bridges)

LaBoube, R. A., P.E. Associate Professor of Civil Engineering, University of Missouri-Rolla, Rolla, Missouri (section 6 building design criteria)

LeRoy, David H., P.E. Vice President, Modjeski and Masters, Inc., Harrisburg, Pennsylvania

(section 13 truss bridges)

Mertz, Dennis, P.E. Associate Professor of Civil Engineering, University of Delaware, Newark, Delaware (section 11 design criteria for bridges)

Nickerson, Robert L., P.E. Consultant-NBE, Ltd., Hempstead, Maryland (section 11 design criteria for bridges)

Podolny, Walter, Jr., P.E. Senior Structural Engineer Bridge Division, Office of Bridge Technology, Federal Highway Administration, U.S. Department of Transportation, Washington, D. C. (section 15 cable-suspended bridges)

Prickett, Joseph E., P.E. Senior Associate, Modjeski and Masters, Inc., Harrisburg, Pennsylvania (section 13 truss bridges)

Roeder, Charles W., P.E. Professor of Civil Engineering, University of Washington, Seattle, Washington (section 9 lateral-force design)

Schflaly, Thomas, Director, Fabricating & Standards, American Institute of Steel Construction, Inc., Chicago, Illinois (section 2 fabrication and erection)

Sen, Mahir, P.E. Professional Associate, Parsons Brinckerhoff, Inc., Princeton, New Jersey

(section 12 beam and girder bridges)

Swindlehurst, John, P.E. Former Senior Professional Associate, Parsons Brinckerhoff, Inc., West Trenton, New Jersey (section 12 beam and girder bridges)

Thornton, William A., P.E. Chief Engineer, Cives Steel Company, Roswell, Georgia (section 5 connections)

Ziemian, Ronald D., Associate Professor of Civil Engineering, Bucknell University, Lewisburg, Pennsylvania (section 3 general structural theory)

Renewable Energy 101

Renewable Energy 101

Renewable energy is energy that is generated from sunlight, rain, tides, geothermal heat and wind. These sources are naturally and constantly replenished, which is why they are deemed as renewable. The usage of renewable energy sources is very important when considering the sustainability of the existing energy usage of the world. While there is currently an abundance of non-renewable energy sources, such as nuclear fuels, these energy sources are depleting. In addition to being a non-renewable supply, the non-renewable energy sources release emissions into the air, which has an adverse effect on the environment.

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