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Search Publications by: Joseph Main (Fed)

Displaying 126 - 142 of 142

Comparative Inter-Laboratory Study of Wind Loading on Low Industrial Buildings

May 16, 2007

Author(s)

Bogusz Bienkiewicz, Munehito Endo, Joseph Main, William P. Fritz

A progress report on an inter-laboratory comparative study of approach flow and wind pressures on low buildings is presented. The wind tunnel data generated at six wind engineering laboratories during a pilot project initiated and coordinated by the

Uniaxial Crushing of Cellular Sandwich Plates Under Air Blast

April 3, 2007

Author(s)

Joseph A. Main, George A. Gazonas

Sandwich plates with cellular metal cores are being widely considered for blast mitigation applications, due largely to the energy absorption capacity of the cellular core material. Computational simulations have shown that sandwich plates exhibit reduced

Vibration of Tensioned Beams With Intermediate Damper. I: Formulation, Influence of Damper Location

April 1, 2007

Author(s)

Joseph A. Main, Nicholas P. Jones

Exact analytical solutions are formulated for the complex eigenmodes of tensioned beams with an intermediate viscous damper. The problem is formulated using the dynamic stiffness method, and characteristic equations are obtained for both clamped and pinned

Vibration of Tensioned Beams with Intermediate Damper. II: Damper Near Support

April 1, 2007

Author(s)

Joseph A. Main, Nicholas P. Jones

Exact analytical solutions are used to investigate the complex eigenfrequencies of tensioned beams with a viscous damper attached transversely near a support, for which the complex eigenfrequencies remain fairly close to their undamped values. This problem

Automated Extraction of Wind Data From ASOS (Automated Surface Observing System) Weather Reports

May 18, 2006

Author(s)

Franklin T. Lombardo, Joseph A. Main

Wind loads for use in structural design are based in part on extreme value analysis of historical wind speed data for the location of interest. In some cases wind direction data are also required to characterize the directionality of the local wind climate

Damping of Stay-Cable Vibrations: Modeling Overview and Design Implications

April 25, 2006

Author(s)

Joseph A. Main, Nicholas P. Jones

Dampers have become widely accepted as an effective means of stay-cable vibration suppression and have been implemented on numerous bridges around the world. Dampers are typically attached to the stays transversely near the anchorages, and different types

Combining Wind Pressure Databases With Structural Analysis To Predict Peak Responses For Rigid Buildings

September 12, 2005

Author(s)

Joseph A. Main

A procedure is described for the design of rigid buildings for wind loading. The procedure, based on the database-assisted design (DAD) approach, uses measured pressure time series in conjunction with influence coefficients obtained by linear, static

Interpolation Issues In the Estimation of Peak Internal Forces Using Wind Pressure Databases

September 12, 2005

Author(s)

Joseph A. Main

A procedure is presented that makes use of measured pressures to predict peak static responses of low buildings, for cases in which no wind tunnel model is available with dimensions matching those of the structure of interest. The proposed approach

Impulsive Loading of Cellular Media in Sandwich Construction

July 31, 2005

Author(s)

Joseph A. Main, George A. Gazonas

Motivated by recent efforts to mitigate blast loading using energy absorbing materials, this paper investigates the uniaxial crushing of cellular media in sandwich construction under impulsive pressure loading. The cellular core material is modeled using a