Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 85 for “"bridge design"”.
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Life cycle approach to bridge design
… the application of the Life Cycle concept to the design of bridges. Its focus is on methodology rather than on any particular application, with emphasis on the preliminary design stage. With the help of conceptual equations for the construction, maintenance, and vehicle delay costs, a procedure …
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Structural aspects of cable-stayed bridge design.
Thesis. 1975. M.S.--Massachusetts Institute of Technology. Dept. of Civil Engineering.
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Zinc Oxide Nanorod Based Ultraviolet Detectors with Wheatstone Bridge Design
… ultra-violet (UV) detectors having a Wheatstone bridge design with a high</p> <p>responsivity at room temperature and above, as well as a responsivity that was largely independent of the change in ambient conditions. The ZnO nanorods which acted as the sensing element of the detector were grown …
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Object oriented programming for reinforced concrete T-beam bridge design
… to develop a Windows based program for the design of reinforced concrete T -beam bridges in accordance with the newly adopted AASHTO LRFD Bridge Specification. The program can perform both the analysis and design of the deck and beam. The program is interactive in nature and it is possible …
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Effectiveness of bridge design competitions in the United States (1989-1998)
… by a constantly changing built environment, the design community is charged with the responsibility of constantly reacting and adapting, creating and innovating, and competing to make the best products. Design procurement methods serve as a vehicle for design professionals to enact change within …
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The progressive synthesis of architecture and engineering in modern bridge design
… structure, their priorities are mismatched. Bridge building, through history usually was considered an engineering feat as it was strictly constructed to traverse a crevasse, waterway or some other obstacle. However through the 20th century, the respective roles have evolved and bridges have …
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Holistic approach in engineering design - controlling risks from accidental hazards in bridge design
Engineering design, in concise terms, is what engineers do using what they know. It is the underlying decision making activity that determines what is to be built and how it should be built. An ever present requirement in engineering design is that the structure should be safe. While historical …
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Determination of AASHTO Bridge Design Parameters through Field Evaluation of the Rt. 601 Bridge: A Bridge Utilizing Strongwell 36 in. Fiber-Reinforced Polymer Double Web Beams as the Main Load Carrying Members
The Route 601 Bridge in Sugar Grove, Virginia spans 39 ft over Dickey Creek. The Bridge is the first to use the Strongwell 36 in. fiber reinforced polymer (FRP) double web beam (DWB) in its superstructure. Replacement of the old bridge began in June 2001, and construction of the new bridge was …
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Development of a rating system for sustainable bridges
… the latest trends in engineering is sustainable design, which is designing so that resources are available for many generations to come. Sustainable design considers the ecological, economic, and socio-cultural environments and works to balance all three. Sustainable bridge design is still in …
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Evaluation of the In-Servic Performance of the Tom's Creek Bridge
The Tom's Creek Bridge is a small-scale demonstration project involving the use of fiber-reinforced polymer (FRP) composite girders as the main load carrying members. The project is intended to serve two purposes. First, by calculating bridge design parameters such as the dynamic load allowance, …
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Nontraditional Limitations on the Shear Capacity of Prestressed Concrete Girders
… included in the 4th edition of the AASHTO LRFD Bridge Design Specifications may underestimate the demand on longitudinal tension reinforcement. Alternatively an equilibrium based approach is presented for determining demand on longitudinal tension reinforcement near the support.
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Seismic vulnerability assessment of off-ramp structures of the Las Vegas downtown viaduct
… by moment-curvature analysis. Then, the existing design of the bridge columns was compared to the requirements of the current bridge design codes. In the second stage, the moment, shear and deformation demands on the columns due to a strong earthquake were determined using the seismic provisions …
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Experimental investigations of anchorage capacity of precast concrete bridge barrier for Performance Level 2
In the last twenty years, the design requirements of bridge barriers have changed with the aim of improving the safety of commuters on the bridge. A majority of precast concrete bridge barriers (PCBB) on highway bridges in British Columbia were designed and installed in accordance with the 1988 …
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Evaluation of redundancy in trapezoidal box-girder bridges using finite element analysis
The AASHTO Bridge Design specifications define a fracture-critical member as a component in tension whose failure is expected to result in the collapse of a bridge. The tension flanges of twin box-girder bridges are thus labeled as fracture-critical. In order to avoid the catastrophic collapse …
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Wind-induced dynamic response of bridges
… loading has long played a significant role in bridge design. Some spectacular failures, such as the Tay Bridge (Scotland, 1879), or the Tacoma Narrows Bridge (Washington State, 1940) acted as a painful reminder to engineers in case they had forgotten the importance of wind loading. Today, a …
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Thermal Gradients in Southwestern United States and the Effect on Bridge Bearing Loads
Thermal gradients became a component of bridge design after soffit cracking in prestressed concrete bridges was attributed to nonlinear temperature distribution through the depth of the bridge. While the effect of thermal gradient on stress distributions has been previously investigated in concrete …
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Design of bridges for security against terrorist attacks
… investigate cost effective measures to improve bridge security against a terrorist threat. It discusses previous research performed on risk management and threat assessment, and discusses the dynamics of extreme loadings on structures. It also discusses the analysis methods and results of …
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