Now showing items 3021-3040 of 3153

    • Field Performance of FRP Bridge Repairs 

      J. M. Stallings; J. W. Tedesco; M. El-Mihilmy; M. McCauley (American Society of Civil Engineers, 2000)
      Many reinforced concrete bridges throughout the United States on county and state highway systems are deteriorated and/or distressed to such a degree that structural strengthening of the bridge or reducing the allowable ...
    • Overload and Ultimate Load Behavior of Posttensioned Slab Bridge 

      Paul N. Roschke; Kevin R. Pruski (American Society of Civil Engineers, 2000)
      A three-tenths-scale model of a posttensioned slab bridge is constructed in a laboratory and tested in the overload and ultimate load ranges. Dimensions of the slab are 16.9 × 5.33 × 0.23 m. In addition to uniformly ...
    • Behavior of Curved I-Girder Webs Subjected to Combined Bending and Shear 

      James S. Davidson; Scott R. Ballance; Chai H. Yoo (American Society of Civil Engineers, 2000)
      Two previous papers by the writers described the buckling and finite-displacement behavior of curved I-girder web panels subjected to pure bending, presented a theoretically pure analytical model, and presented equations ...
    • Dynamic Response of Elevated High-Speed Railway 

      Yung-Hsiang Chen; Chen-Yu Li (American Society of Civil Engineers, 2000)
      The study of the dynamic response of the elevated railway for the high-speed train in the Taiwan area at the preliminary design stage is presented. Two types of the elevated reinforced concrete railway, they being the ...
    • Endurance of Deck-to-Deck Connections in Transverse Hardwood Glulam Decks 

      Vincent D. LaCross; Harvey B. Manbeck; Ray W. Witmer; Jeffrey A. Laman; John J. Janowiak (American Society of Civil Engineers, 2000)
      Dowel and stiffener beam deck-to-deck connections transfer shear and moment between hardwood glued-laminated (glulam) transverse deck panels in longitudinal timber bridges. The connections resist relative deflections between ...
    • Section Properties for Latticed Members of San Francisco–Oakland Bay Bridge 

      Lian Duan; Mark Reno; Jason Lynch (American Society of Civil Engineers, 2000)
      This paper focuses on the determination of section properties of latticed members for seismic retrofit of the San Francisco–Oakland Bay Bridge. To consider actual section integrity for a latticed member, the concept of ...
    • Design of Mechanical Viscous Dampers for Stay Cables 

      Habib Tabatabai; Armin B. Mehrabi (American Society of Civil Engineers, 2000)
      External dampers have been utilized in a number of cable-stayed bridges to suppress transverse cable vibrations. However, simple and accurate damper design recommendations that concurrently consider all important cable ...
    • AASHTO-LRFD Live Load Distribution Specifications 

      Toorak Zokaie (American Society of Civil Engineers, 2000)
      The live load distribution factors contained in the AASHTO-LRFD Bridge Design Specification present a major change to the AASHTO-LFD specifications that have been in effect for more than 50 years. This change has generated ...
    • Theories of Aerodynamic Forces on Decks of Long Span Bridges 

      J. A. Jurado; S. Hernández (American Society of Civil Engineers, 2000)
      Long span bridges are one of the most challenging kinds of structures in civil engineering. Wind loading and wind effects are highly important aspects when designing this typology. The interaction between wind and structure, ...
    • Thrust and Guide Devices for Launched Bridges 

      Marco Rosignoli (American Society of Civil Engineers, 2000)
      Incremental launching is a competitive construction method for medium-span (40–65 m) prestressed concrete bridges. It does not constrain the length and width of the superstructure, and bridges longer than 1 km and wider ...
    • Behavior of Transverse Confining Systems for Steel-Free Deck Slabs 

      Baidar Bakht; Clifford Lam (American Society of Civil Engineers, 2000)
      Extensive research conducted over the past eight years in Canada has led to a concrete deck slab of girder bridges that can be entirely free of any tensile reinforcement. This slab, known as the steel-free deck slab, derives ...
    • Closure to “Cable Safety Factors for Four Suspension Bridges” by Robert Q. Haight, David P. Billington, and Dyab Khazem 

      Robert Q. Haight; David P. Billington; Dyab Khazem (American Society of Civil Engineers, 1999)
    • Dynamic Response and Fatigue of Steel Tied-Arch Bridge 

      Charles W. Roeder; Gregory MacRae; Paul Crocker; Kayoko Arima; Scott Wong (American Society of Civil Engineers, 2000)
      The Toutle River Bridge is a steel tied-arch bridge, one that vibrates extensively and has sustained significant fatigue cracking. An experimental study into the cause of this behavior is described. Computer analyses of ...
    • Bridge Deck Aeroelastic Admittance Revisited 

      Robert H. Scanlan (American Society of Civil Engineers, 2000)
      The subject matter of the present paper falls within the context of the analysis of the response to wind of long-span bridges. Although the paper stands alone, it should properly be seen as focusing on a single important ...
    • Load Distribution and Impact Factors for I-Girder Bridges 

      Jeffrey A. Laman; Andrzej S. Nowak (American Society of Civil Engineers, 1999)
    • Vehicular Overloads: Load Model, Bridge Safety, and Permit Checking 

      Gongkang Fu; Osman Hag-Elsafi (American Society of Civil Engineers, 2000)
      All states in the United States issue special permits for nondivisible and/or divisible truck overloads exceeding the weight limit of the highway jurisdiction. This causes stress levels higher than those induced by normal ...
    • Discussion of “Cable Safety Factors for Four Suspension Bridges” by Louis G. Silano 

      Louis G. Silano (American Society of Civil Engineers, 1999)
    • Long-Term Behavior of Continuous Precast Concrete Girder Bridge Model 

      Antonio R. Marí; Manuel Valdés (American Society of Civil Engineers, 2000)
      Continuous concrete box girder bridges composed of precast reinforced and prestressed concrete beams with a U cross section and a cast-in-place top slab are frequently used for medium spans due to their competitiveness. ...
    • Northern Red Oak Glued-Laminated Timber Bridge 

      Harvey B. Manbeck; Paul R. Blankenhorn; John J. Janowiak; Ray W. Witmer Jr.; Peter Labosky; Patrick S. Powers; Perry D. Schram (American Society of Civil Engineers, 1999)
      A 5-year program to monitor the performance of a red oak longitudinal girder, transverse deck glued-laminated (glulam) highway bridge is presented. The bridge design details, including preservative treatment results, are ...
    • Deterioration Assessment and Rehabilitation Design of Existing Steel Bridge 

      Daniel N. Farhey; Razi Naghavi; Alper Levi; Aniruddha M. Thakur; Mark A. Pickett; Douglas K. Nims; A. Emin Aktan (American Society of Civil Engineers, 2000)
      Diagnostic truck-load tests and microstructural analysis were applied for structural deterioration assessment of a steel truss bridge and its rehabilitation design. The feasibility and potential benefits of using advanced ...