Now showing items 3061-3080 of 3153

    • Investigation of Cracking in Concrete Bridge Decks at Early Ages 

      Mohsen A. Issa (American Society of Civil Engineers, 1999)
      The loads, construction procedures, and material behavior influence the performance of the bridge deck as well as its structural integrity. This paper includes a thorough investigation to identify the probable causes of ...
    • Effect of Multilanes on Wheel Load Distribution in Steel Girder Bridges 

      Mounir E. Mabsout; Kassim M. Tarhini; Gerald R. Frederick; Abbas Kesserwan (American Society of Civil Engineers, 1999)
      This paper presents the results of a parametric study that investigated the effect of multilanes and continuity on wheel load distribution in steel girder bridges. Typical one- and two-span, two-, three-, and four-lane, ...
    • Self-Anchored Suspension Bridges 

      John A. Ochsendorf; David P. Billington (American Society of Civil Engineers, 1999)
      This paper, summarizing the beginnings, analysis, and future of self-anchored suspension bridges, examines the development of this unique bridge form, its uses over the past century, and its advantages and disadvantages. ...
    • Estimates of Skew Wind Speeds for Bridge Flutter 

      Robert H. Scanlan (American Society of Civil Engineers, 1999)
      When estimating the stability of a long-span bridge under wind, the basic study is most often made by considering the wind as it approaches the bridge at right angles to its long axis. However, maximum wind at a given site ...
    • Errata 

      Unknown author (American Society of Civil Engineers, 1999)
    • Load Distribution Factors for Composite Multicell Box Girder Bridges 

      Khaled M. Sennah; John B. Kennedy (American Society of Civil Engineers, 1999)
      Composite steel-concrete multicell box girder bridges combine excellent torsional stiffness with elegance. While the current design practices in North America recommend few analytical methods for the design of composite ...
    • Analytical Evaluation of Retrofit Strategies for Multicolumn Bridges 

      Yi Zhang; William F. Cofer; David I. McLean (American Society of Civil Engineers, 1999)
      The objective of the work of this paper was to investigate analytically the feasibility and advantages of applying various combinations of steel jacket retrofit measures developed for single-column bent bridges to multicolumn ...
    • Removal of Diaphragms from Three-Span Steel Girder Bridge 

      J. M. Stallings; T. E. Cousins; T. E. Stafford (American Society of Civil Engineers, 1999)
      Many multigirder steel bridges built before 1985 are experiencing distortion-induced fatigue cracking at diaphragm-girder connections. A means of eliminating the cyclic stresses that cause those fatigue problems is to ...
    • Cumulative Damage to Bridge Concrete Deck Slabs Due to Vehicle Loading 

      Thomas E. Boothby; Jeffrey A. Laman (American Society of Civil Engineers, 1999)
      The objective of this project is to evaluate the cumulative damage caused by vehicle loading to bridge concrete deck slabs. As part of this study, an existing analytical model has been implemented to evaluate the effect ...
    • Strengthening by Means of External Prestressing 

      M. A. Pisani (American Society of Civil Engineers, 1999)
      This paper deals with the behavior of reinforced concrete, partially prestressed concrete, and prestressed concrete beams, subjected to cyclic loading and then strengthened by means of external prestressing. The comparison ...
    • Influence of Deck Material on Response of Cable-Stayed Bridges to Live Loads 

      Hany W. George (American Society of Civil Engineers, 1999)
      During the last three decades, cable-stayed bridges have proven to be first-class structures providing vital transport links. Together with the construction process, erection procedure, and site conditions, the choice of ...
    • Prestressing Schemes for Incrementally Launched Bridges 

      Marco Rosignoli (American Society of Civil Engineers, 1999)
      Incremental launching is a competitive construction method for medium-span prestressed concrete bridges. Compared with other techniques for in situ casting, in short bridges it is an alternative to the use of falseworks ...
    • Stress Distribution at PTFE Interface in Cylindrical Bearing 

      T. I. Campbell; M. F. Green; N. C. Koppens; A. C. Agarwal (American Society of Civil Engineers, 1998)
      Two analytical methods capable of evaluating stresses at the curved polytetrafluoroethylene (PTFE) metal sliding interface in a cylindrical bearing subjected to combined vertical and horizontal loads are described. One ...
    • Wrinkled Membranes and Cable-Stayed Bridges 

      Gianni F. Royer-Carfagni (American Society of Civil Engineers, 1999)
      In seeking an efficient arrangement for the bearing cables of a cable-stayed bridge, inspiration is drawn from the natural wrinkling behavior of in-plane stressed triangular membranes. The bridge deck is thought of as being ...
    • Nonlinear FE Analyses of RC Bridge Frame Corners, Based on Fracture Mechanics 

      Mario Plos; Kent Gylltoft (American Society of Civil Engineers, 1998)
      Reinforced concrete frame corners were analyzed using the nonlinear finite-element method and fracture mechanics. The objective of the study was to determine whether the reinforcement detailing in frame bridges could be ...
    • Partial Composite Action in Hardwood Glued-Laminated T-Beams 

      Ray W. Witmer Jr; Harvey B. Manbeck; John J. Janowiak (American Society of Civil Engineers, 1999)
      This paper presents experimental results from large-scale red maple glued-laminated (glulam) double t-beam testing for application in hardwood glulam bridge design. Experimental results indicate that glulam t-beams assembled ...
    • DISCUSSION: Reliability-Based Method for Fatigue Evaluation of Railway Bridges 

      William G. Byers (American Society of Civil Engineers, 1998)
    • Serviceability Design of Prestressed Concrete Bridges 

      André Picard; Bruno Massicotte (American Society of Civil Engineers, 1999)
      In this paper, serviceability limit states of prestressed concrete bridges are examined. Allowable compressive and tensile stresses in concrete under service loads are first used to determine the upper and lower limits of ...
    • Ultimate Load Capacity of Cable-Stayed Bridges 

      Ying Xi; J. S. Kuang (American Society of Civil Engineers, 1999)
      This paper presents an energy method of analysis for the in-plane ultimate load capacity of cable-stayed bridges. The potential energy of the whole bridge, including bridge deck, stayed cables, and pylons, and the work ...
    • DISCUSSION: Field Study of Pretension in Large-Diameter A490 Bolts 

      Ronald L. Flucker (American Society of Civil Engineers, 1998)