Now showing items 2861-2880 of 3153

    • Deflection Requirements for Bridges Constructed with Advanced Composite Materials 

      J. R. Demitz; D. R. Mertz; J. W. Gillespie (American Society of Civil Engineers, 2003)
      Many bridges in the United States have reached or are approaching the end of their useful lives. Since the 1940s, salt and other deicing agents applied to highways and bridges, coupled with inadequate maintenance funding, ...
    • Thermal Effects on Skewed Steel Highway Bridges and Bearing Orientation 

      Troy T. Tindal; Chai H. Yoo (American Society of Civil Engineers, 2003)
      An investigation is conducted to characterize and quantify external effects in composite steel highway bridges under thermal loading. Based on the results of a literature review, including thermal and thermoelastic analyses ...
    • Model Validation for Bridge-Road-Vehicle Dynamic Interaction System 

      Hani H. Nassif; Ming Liu; Oguz Ertekin (American Society of Civil Engineers, 2003)
      The dynamic response of highway bridges subjected to moving truckloads has been observed to be dependent on (1) dynamic characteristics of the bridge; (2) truck configuration, speed, and lane position on the bridge; and ...
    • Conceptual Design for the Sunniberg Bridge 

      Chelsea Honigmann; David P. Billington (American Society of Civil Engineers, 2003)
      This paper explains how a major engineer, Christian Menn, conceived of his design for the 1998 Sunniberg Bridge in Switzerland. Menn had given a brief outline of his approach in an earlier paper, and this paper works out ...
    • LRFD Orthotropic Plate Model for Live Load Moment in Filled Grid Decks 

      Christopher Higgins (American Society of Civil Engineers, 2003)
      Due to the orthogonal elastic properties and significant two-way bending action, orthotropic plate theory may best be used to describe the behavior of concrete filled grid bridge decks. The current AASHTO LRFD specification ...
    • Reinforcing Transverse Glulam Deck Panels with Through-bolted Glulam Stiffener Beams: Theoretical Analysis 

      Ray W. Witmer, Jr.; Harvey B. Manbeck; John J. Janowiak; Perry Schram (American Society of Civil Engineers, 2002)
      Two design criteria, allowable stress design (ASD) and load and resistance factor design (LRFD), are presented for calculating glued-laminated (glulam) stiffener beam depth and number of dome head through bolts used in ...
    • Niagara Cantilever 

      Francis E. Griggs, Jr. (American Society of Civil Engineers, 2003)
      The first modern metal cantilever bridge in the United States, using erection methods that were to be utilized in most future cantilever bridges, was by C. C. Schneider across the Niagara Gorge in 1883. The Niagara, saw ...
    • Editor's Note 

      Dennis R. Mertz (American Society of Civil Engineers, 2003)
    • Dynamic Response of Suspension Bridge to High Wind and Running Train 

      Y. L. Xu; H. Xia; Q. S. Yan (American Society of Civil Engineers, 2003)
      A framework is presented for predicting the dynamic response of long suspension bridges to high winds and running trains. A three-dimensional finite-element model is used to represent a suspension bridge. Wind forces acting ...
    • Reviewers 

      Unknown author (American Society of Civil Engineers, 2002)
    • Proposed Design Method for Thermal Bridge Movements 

      Charles W. Roeder (American Society of Civil Engineers, 2003)
      Bridges expand and contract due to temperature changes. These movements are estimated in design, and expansion joints and bridge bearings are designed to accommodate the movements. Integral construction is another means ...
    • Construction Control of Reinforced Concrete Arch Bridges 

      F. T. K. Au; J. J. Wang; G. D. Liu (American Society of Civil Engineers, 2003)
      Reinforced concrete arch bridges are ideal to span over river valleys or deep ravines. However, the construction of the arch rib is very often the most crucial aspect that may influence the feasibility of the bridge. Casting ...
    • Assessment of Shear Forces on Bridge Abutments: Simplified Method 

      G. Benzoni; M. P. Limongelli; M. J. N. Priestley (American Society of Civil Engineers, 2003)
      The conventional application of reduction factors to response spectrum analysis results is inappropriate for the abutment shear forces, which are based on elastic action. On the other hand, adopting the unreduced values ...
    • Response Spectrum Analysis of Suspension Bridges for Random Ground Motion 

      Said M. Allam; T. K. Datta (American Society of Civil Engineers, 2002)
      The response spectrum method of analysis for suspension bridges subjected to multicomponent, partially correlated stationary ground motion is presented. The analysis is based on the relationship between the power spectral ...
    • Seismic Performance of Hollow High-Strength Concrete Bridge Columns 

      Y. L. Mo; I. C. Nien (American Society of Civil Engineers, 2002)
      The seismic performance of rectangular hollow bridge columns has been a significant issue with the high-speed rail project in Taiwan, because the ductility of these columns is unknown. To investigate the seismic performance ...
    • Extreme Thermal Loading on Steel Bridges in Tropical Region 

      Man Tong; Leslie G. Tham; Francis T. K. Au (American Society of Civil Engineers, 2002)
      In the design of highway bridges, it is important to consider the thermal stresses induced by the nonlinear temperature distribution in the bridge deck irrespective of their spans. To cope with this, design temperature ...
    • Cable Erection Test at Splay Band for Spatial Suspension Bridge 

      Heungbae Gil; Youngjae Choi (American Society of Civil Engineers, 2002)
      The Yongjong Grand Bridge includes a self-anchored suspension bridge with inclined cable planes. The bridge uses splay bands (cable collars) to flare the main cables at the anchorage, which is located at the end of a ...
    • Flexural Reliability of Reinforced Concrete Bridge Girders Strengthened with Carbon Fiber-Reinforced Polymer Laminates 

      Ayman M. Okeil; Sherif El-Tawil; Mohsen Shahawy (American Society of Civil Engineers, 2002)
      This paper presents the development of a resistance model for reinforced concrete bridge girders flexurally strengthened with externally bonded carbon fiber-reinforced polymer (CFRP) laminates. The resistance model is ...
    • Design of Looping Cable Anchorage System for New San Francisco–Oakland Bay Bridge Main Suspension Span 

      John Sun; Rafael Manzanarez; Marwan Nader (American Society of Civil Engineers, 2002)
      Located at the rocky edge of the Yerba Buena Island, the west anchorage of the San Francisco–Oakland Bay Bridge suspension span serves as the anchor for this single tower self-anchored suspension bridge. With extensive ...
    • Performance Evaluation of Jointless Bridges 

      Hemanth K. Thippeswamy; Hota V. S. GangaRao; Jason M. Franco (American Society of Civil Engineers, 2002)
      A recent trend in bridge design has been toward the elimination of joints and bearings in the bridge superstructure. Joints and bearings are expensive in both initial and maintenance costs and can get filled with debris, ...