Now showing items 2921-2940 of 3153

    • Live Load Tests of the San Antonio “Y” 

      Carin L. Roberts-Wollmann; John E. Breen; Michael E. Kreger (American Society of Civil Engineers, 2001)
      This paper presents the results of static live load tests performed on several spans of the San Antonio “Y” Project, Phase IIC, prior to its opening to traffic. The San Antonio “Y” Project is an urban viaduct comprising ...
    • Strength and Serviceability of FRP Grid Reinforced Bridge Decks 

      Joseph Robert Yost; Edwin R. Schmeckpeper (American Society of Civil Engineers, 2001)
      The research presented in this paper evaluates the flexural performance of bridge deck panels reinforced with 2D fiber-reinforced polymer (FRP) grids. Two different FRP grids were investigated, one reinforced with a hybrid ...
    • Frequency-Domain Analysis of Long-Span Bridges Subjected to Nonuniform Seismic Motions 

      Mohammed Ettouney; Adam Hapij; Ruben Gajer (American Society of Civil Engineers, 2001)
      Nonuniform seismic motion affects the seismic behavior of long-span bridges. Three main reasons for this nonuniformity have been identified. They are local soil conditions, wave passage, and incoherency effects. Other ...
    • Performance of Segmental and Posttensioned Bridges in Europe 

      Alan Moreton (American Society of Civil Engineers, 2001)
      With a history a decade or two longer than in the United States, the October 1999 Scanning Tour by the Federal Highway Administration was to examine European performance, durability and maintenance of prestressed concrete, ...
    • Response and Analysis of Steel Trusses for Fatigue Truck Loading 

      Heather M. O'Connell; Robert J. Dexter (American Society of Civil Engineers, 2001)
      The strain responses of several members of two different types of truss bridges to known truck loads are measured and compared to the responses calculated using typical structural analysis as well as 2D and 3D finite-element ...
    • Practical Issues for the Application of High-Performance Concrete to Highway Structures 

      John J. Myers; Yumin Yang (American Society of Civil Engineers, 2001)
      In recent years, the advantages of high-performance concrete (HPC) have been well documented. Among others, these advantages include enhanced design flexibility and improved durability performance that results in reduced ...
    • Evaluation of Site Factors for Seismic Bridge Design in New York City Area 

      Sissy Nikolaou; George Mylonakis; Peter Edinger (American Society of Civil Engineers, 2001)
      Site factors for seismic bridge design in the New York metropolitan area are evaluated. Several profiles from Brooklyn, Queens, and Manhattan, matching soil categories D and E as defined in the recent New York City Department ...
    • Bridge Lifetime System Reliability under Multiple Limit States 

      Allen C. Estes; Dan M. Frangopol (American Society of Civil Engineers, 2001)
      A system reliability approach to minimizing the life-cycle cost of a deteriorating structure offers significant advantages such as a rational assessment of the assumed risk of failure, and an understanding of the importance ...
    • Dynamic Response of Half-Through Steel Arch Bridge Using Fiber Model 

      Tetsuya Nonaka; Asghar Ali (American Society of Civil Engineers, 2001)
      Since the Great Hanshin earthquake, research on seismic investigation has progressed further, as a result of which there has been a lot of improvement in seismic analysis methods along with analysis tools. Recently, a ...
    • Design, Specification, Installation, and Maintenance of Modular Bridge Expansion Joint Systems 

      Robert J. Dexter; Carl B. Osberg; Mark J. Mutziger (American Society of Civil Engineers, 2001)
      Data regarding service performance and durability of modular bridge expansion joint systems were gathered through a comprehensive literature review, survey of transportation agencies, and field observations. Typical service ...
    • Design Considerations for Aircraft Bridges 

      Bruce A. Moulds (American Society of Civil Engineers, 2001)
      The objective of this paper is to present the methodologies associated with the design of bridges utilized to support large aircraft loadings. Unlike their highway counterparts, there is very little information published ...
    • Probabilistic Seismic Demand Model for California Highway Bridges 

      Kevin Mackie; Božidar Stojadinović (American Society of Civil Engineers, 2001)
      A performance-based seismic design method enables designers to evaluate a graduated suite of performance levels for a structure in a given hazard environment. The Pacific Earthquake Engineering Research Center is developing ...
    • Durability of Segmental Concrete Bridges 

      Maurice D. Miller (American Society of Civil Engineers, 2001)
      A 1997 article in
    • Live Load Distribution for Steel Girder Bridges 

      Junsik Eom; Andrzej S. Nowak (American Society of Civil Engineers, 2001)
      This paper deals with distribution of truck load on girder bridges. Previous analytical studies based on finite-element method indicated that AASHTO code-specified girder distribution factors (GDFs) are inaccurate. In ...
    • Strengthening of a Steel Bridge Girder Using CFRP Plates 

      Trent C. Miller; Michael J. Chajes; Dennis R. Mertz; Jason N. Hastings (American Society of Civil Engineers, 2001)
      For bridge owners faced with a rising number of structurally deficient steel bridges, the rehabilitation of steel girders using advanced composite materials offers an attractive solution for short-term retrofit or long-term ...
    • Dynamic Analysis of Steel Curved Box Girder Bridges 

      Dongzhou Huang (American Society of Civil Engineers, 2001)
      The impact of seven three-span continuous single box girder bridges, with overall span lengths ranging from 76.2 to 213.36 m (250–700 ft), due to vehicles moving across rough bridge decks is analyzed. The box girder is ...
    • Reliability-Based Assessment of Suspension Bridges: Application to the Innoshima Bridge 

      Kiyohiro Imai; Dan M. Frangopol (American Society of Civil Engineers, 2001)
      Many suspension and cable-stayed bridges were designed and constructed between Honshu Island and Shikoku Island in Japan. All these bridges were designed according to the allowable stress design method. In the allowable ...
    • BART SFO Extension Aerial Guideways: Using Nonlinear Analysis to Control and Minimize Seismic Damage 

      Michael H. Jones; Ayman E. Salama; Scott T. Dreher (American Society of Civil Engineers, 2001)
      Bay Area Rapid Transit (BART) is extending service from the existing southern terminus of BART, at Colma Station, to San Francisco International Airport (SFO), a distance of 14 km (8.7 mi). Included in this project are ...
    • Control of Seismically Excited Cable-Stayed Bridge Using Resetting Semiactive Stiffness Dampers 

      W. L. He; A. K. Agrawal; K. Mahmoud (American Society of Civil Engineers, 2001)
      Cable-stayed bridges are prone to exhibit large amplitude oscillations because of their large flexibility, small mass, and small inherent damping. Hence, the reduction of seismic or wind-induced vibration of cable-stayed ...
    • Use of Isolation for Seismic Retrofitting Bridges 

      Roy A. Imbsen (American Society of Civil Engineers, 2001)
      The increasing acceptance of seismic isolation for bridges is being demonstrated by the number of bridges now being designed or retrofitted using this technology. This technology is now being used for bridges across the ...