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This paper analyzes the results of a driven pile side shear setup (SSS) test program performed at the University of Florida and described in a companion paper. All pile segments showed SSS, with similar magnitudes in both cohesionless and cohesive soils, and irrespective of depth. Horizontal effective stresses increased after driving, but then stabilized as induced pore pressures dissipated. SSS continued long after pore pressure dissipation due to other aging effects. Pile load tests in all soil types, and standard penetration tests with torque measurement (SPT-T) in cohesive soils, confirmed the approximate semilog-linear time versus SSS behavior and the usefulness of the setup factor A. Staged (repeated) tests significantly increased SPT-T measurements, suggesting a reduction factor of 0.4 for SSS results measured by staged testing. We believe that engineers can now include SSS in routine design, using a minimum setup factor A=0.1 for soils similar to those tested, or higher if supported by dynamic or static pile tests, or by SPT-T predictor tests. Examples demonstrate a proposed SSS design method. [ABSTRACT FROM AUTHOR]

This paper presents a detailed investigation of warping-related stresses in 18 composite steel-concrete box girder bridges. The bridge designs were adapted from blueprints of existing bridges in the state of Florida and encompass a wide range of parameters including horizontal curvature, cross-sectional properties, and number of spans. The bridges after which the analysis prototypes are modeled were designed by different firms and constructed at different times and are considered to be representative of current design practice. Forces are evaluated from analyses that account for the construction sequence and the effect of warping. Loading is considered following the 1998 AASHTO-LRFD provisions. Differences between stresses obtained taking warping into account and those calculated by ignoring warping are used to evaluate the effect of warping. Analysis results show that warping has little effect on both shear and normal stresses in all bridges. Current design provisions are discussed in light of the analysis results. [ABSTRACT FROM AUTHOR]

An essay is presented on challenges and opportunities in the engineering disciplines to a successful renewable energy transition. It offers the contours of the "engineering challenge," wherein both engineers and nonengineers differ significantly in conceptualization of the boundaries between "policy" and " engineering." The author mentions a conference in Florida in May 2003 that patterns science, sustainability and engineering into a more ordered and standardized form.

Guidance regarding equilibrium beach profiles has been well established, although limited knowledge exists regarding the spatial and temporal variability of the equilibrium beach profile parameter for engineering usage, and limited data have been published regarding such changes. Additionally, the controlling parameter in the equilibrium beach profile theory depends on assumed depth of profile closure. Equilibrium beach profile theory is utilized herein to assess the spatial and temporal variability of beach profiles along the Florida Panhandle Coast to provide added empirical guidance on this subject. [ABSTRACT FROM AUTHOR]