Technical Reports, Civil and Environmental Engineering
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Implementation of a Precast Inverted T-Beam System in Virginia: Part II: Analytic and Field Investigations
(Virginia Transportation Research Council, 2018-08)The inverted T-beam superstructure is a bridge system that provides an accelerated construction alternative for short-to-medium-span bridges. The system consists of adjacent precast inverted T-beams with a cast-in-place ... -
Full-Scale Laboratory Evaluation of Hybrid Composite Beams for Implementation in a Virginia Bridge
(Virginia Transportation Research Council, 2018-08)This research project studied a steel-reinforced concrete and fiber-reinforced polymer (FRP) structural element called the Hybrid-Composite Beam (HCB). The beam was used in a skewed simple span superstructure replacement ... -
Carbon Fiber Reinforced Polymer Grids for Shear and End Zone Reinforcement in Bridge Beams
(Virginia Transportation Research Council, 2018-01)Corrosion of reinforcing steel reduces life spans of bridges throughout the United States; therefore, using non-corroding carbon fiber reinforced polymer (CFRP) reinforcement is seen as a way to increase service life. The ... -
Roanoke Urban Stormwater Research: Lick Run / Trout Run Phase V Final Report
(2018-12-19)Effective management and restoration of urban watersheds requires considerable information describing the watershed’s land surface, drainage system, and receiving streams, in order to understand the important hydrologic ... -
Roanoke Urban Stormwater Research: Phase 1 - Discovery Final Report
(2014-12-01)This report is the final product of an 8 month long collaboration between the City of Roanoke’s Environmental, Engineering, Public Works, GIS, and Planning staff, and researchers in the Via Department of Civil and Environmental ... -
Classification of longitudinal welds in an aluminum bridge deck
(Virginia Center for Transportation Innovation and Research, 2002-02-01)An aluminum bridge deck (called ALUMADECK) has been developed by Reynolds Metal Company and is made of extruded aluminum sections welded together at the sides to form a bridge deck. The longitudinal welds used to connect ... -
Investigation of the Resistance of Pile Caps and Integral Abutments to Lateral Loading
(Virginia Center for Transportation Innovation and Research, 2002-02-01)This research provides a means of assessing and quantifying many important aspects of pile group and pile cap behavior under lateral loads. The program of work performed in this study includes developing a full-scale field ... -
Experimental and Analytical Investigations of Piles and Abutments of Integral Bridges
(Virginia Center for Transportation Innovation and Research, 2002-03-01)This research investigated, through experimental and analytical studies, the complex interactions that take place between the structural components of an integral bridge and the adjoining soil. The ability of piles and ... -
Field performance of epoxy-coated reinforcing steel in Virginia bridge decks
(Virginia Center for Transportation Innovation and Research, 2000-02-01)In this study, the corrosion protection performance of epoxy-coated reinforcing steel (ECR) was evaluated using approximately 250 concrete cores from 18 bridge decks in Virginia. The decks were 2 to 20 years old at the ... -
Erosion Protection for Soil Slopes Along Virginia's Highways
(Virginia Center for Transportation Innovation and Research, 2000-10-01)A survey of the state of practice for designing slope erosion control measures within VDOT's nine districts has been conducted. On the basis of the survey, it is clear that there are no specific design procedures currently ... -
Glass fiber reinforced polymer bars as top mat reinforcement for bridge decks
(Virginia Center for Transportation Innovation and Research, 2002-09-01)The objectives of this research were to characterize the material and bond properties of three commercially available GFRP (glass fiber reinforced polymer) reinforcing bars, and evaluate the effects of the material properties ... -
Evaluation of models for predicting (total) creep of prestressed concrete mixtures
(Virginia Center for Transportation Innovation and Research, 2002-09-01)Concrete experiences volume changes throughout its service life. When loaded, concrete experiences an instantaneous recoverable elastic deformation and a slow inelastic deformation called creep. Creep of concrete is composed ... -
High-speed texture measurement of pavements
(Virginia Center for Transportation Innovation and Research, 2003-02-01)This study was conducted to validate high-speed texture measuring equipment for use in highway applications. The evaluation included two high-speed systems and a new static referencing device. Tests were conducted on 22 ... -
Proof Testing a Bridge Deck Design with Glass Fiber Reinforced Polymer Bars as Top Mat of Reinforcement
(Virginia Center for Transportation Innovation and Research, 2003-06-01)The primary objective of this project was to test a full-scale prototype of a bridge deck design containing glass fiber reinforced polymer (GFRP) bars as the top mat of reinforcement. The test deck mimics the design of the ... -
Development of concrete shrinkage performance specifications
(Virginia Center for Transportation Innovation and Research, 2003-08-01)During its service life, concrete undergoes volume changes. One of the types of deformation is shrinkage. The four main types of shrinkage associated with concrete are plastic, autogenous, carbonation, and drying shrinkage. ... -
Investigation of Transfer Length, Development Length, Flexural Strength, and Prestress Losses in Lightweight Prestressed Concrete Girder
(Virginia Center for Transportation Innovation and Research, 2003-04-01)Encouraged by the performance of high performance normal weight composite girders, the Virginia Department of Transportation has sought to exploit the use of high performance lightweight composite concrete (HPLWC) girders ... -
Factors Affecting Strength Gain in Lime-Cement Columns and Development of a Laboratory Testing Procedure
(Virginia Center for Transportation Innovation and Research, 2003-06-01)Lime-cement columns were constructed to improve soft ground as part of a test embankment program at the I-95/Route interchange in Alexandria, Virginia. Two different commercial laboratories performed tests on treated soil, ... -
Using high-speed texture measurements to improve the uniformity of hot-mix asphalt
(Virginia Center for Transportation Innovation and Research, 2003-05-01)This study introduces Virginia's efforts to apply high-speed texture measurement as a tool to improve the uniformity of hot-mix asphalt (HMA) pavements. Three approaches for detecting and quantifying HMA segregation through ... -
Plate & tube bridge deck evaluation in the deck test bed of the Troutville, Virginia, weigh station
(Virginia Center for Transportation Innovation and Research, 2004-03-01)This report addresses the laboratory and field performance of multi-cellular fiber-reinforced polymer (FRP) composite bridge deck systems. We focus specifically on FRP decks produced from adhesively bonded pultrusions where ... -
Composite action in a steel girder span with precast deck panels :the I-81 bridge over the New River in Radford, Virginia
(Virginia Center for Transportation Innovation and Research, 2003-10-01)Two parallel bridges carry I-81 north and south over the New River in southwest Virginia, near the city of Radford. The bridges are identical in design and have been in place since 1985. In recent years, a number of ...
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