Now showing items 1-10 of 490
Capacity Modeling of Freeway Weaving Sections
(Virginia Tech, 2005-05-09)
The dissertation develops analytical models that estimate the capacity of freeway weaving sections. The analytical models are developed using simulated data that were compiled using the INTEGRATION software. Consequently, ...
The Investigation of Transverse Joints and Grouts on Full Depth Concrete Bridge Deck Panels
(Virginia Tech, 2009-12-08)
A set of experimental tests were performed at Virginia Tech to investigate transverse joints and blockouts on full depth concrete bridge deck panels. The joints were designed on a deck replacement project for a rural three ...
Optimal forms of rectangular-base, shallow shells with respect to buckling
(Virginia Polytechnic Institute and State University, 1985)
A Fiber-Based Approach for Modeling Beam-Columns under Fire Loading
(Virginia Tech, 2009-06-19)
The work described herein emphasizes a new fiber-based approach to modeling the response of structural frames subjected to realistic fire conditions. The proposed approach involves the development and validation of two ...
Experimental and Analytical Investigations of Piles and Abutments of Integral Bridges
(Virginia Tech, 2000-12-15)
Bridges without expansion joints are called "integral bridges." Eliminating joints from bridges crates concerns for the piles and the abutments of integral bridges because the abutments and the piles are subjected to ...
Performance of Improved Ground and Reinforced Soil Structures during Earthquakes â Case Studies and Numerical Analyses
(Virginia Tech, 2003-12-12)
The 1999 Kocaeli Earthquake (M=7.4) struck northwestern Turkey on August 17, 1999 and caused significant damage in urban areas located along Izmit Bay. The sites that suffered the greatest damages were located primarily ...
An Investigation of the Biochemistry of Biological Phosphorus Removal
(Virginia Tech, 2002-02-06)
Although enhanced biological phosphorus removal (EBPR) and complete biological nutrient removal (BNR) systems can be operated successfully by experienced operators, the accuracy of design and strength of the scientific ...
The Effects of Temperatures on System Performance and Bacterial Community Structure in a Biological Phosphorus Removal System
(Virginia Tech, 2002-02-01)
It is generally accepted that a decrease in temperature causes the rates of chemical and biochemical reactions to slow down, usually resulting in poorer performance of biological wastewater treatment systems. Despite this, ...
An Experimental Study of the Dynamic Behavior of Slickensided Surfaces
(Virginia Tech, 2006-01-25)
When a clay soil is sheared, clay particles along the shear plane become aligned in the direction of shear, forming â slickensidedâ surfaces. Slickensided surfaces are often observed along the sliding plane in field ...
Performance Quantification of Interlayer Systems in Flexible Pavements Using Finite Element Analysis, Instrument Response, and Non Destructive Testing
(Virginia Tech, 2003-02-21)
This study quantifies the benefits of two interlayer systems (steel reinforcing netting and a newly-designed geocomposite membrane) in different pavement applications. Steel reinforcing netting and geocomposite membrane ...