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Analytical Solutions to General Orthotropic Plates under Patch Loading
Publisher: American Society of Civil Engineers
Abstract: Orthotropic plates are widely used in bridge deck systems. However, these are not commonly treated as such within design specifications, and semianalytical solutions are not presently available for all deck types. This ...
Comparison of Block-Shear and Whitmore Section Methods for Load Rating Existing Steel Truss Gusset Plate Connections
Publisher: American Society of Civil Engineers
Abstract: Many transportation agencies are now evaluating and rating their inventory of steel truss bridge gusset plate connections after the collapse of the I35W Bridge in Minneapolis. Modern design methodologies are being used to ...
Rapid Ranking Procedures for Gusset Plate Connections in Existing Steel Truss Bridges
Publisher: American Society of Civil Engineers
Abstract: Evaluation and rating of steel truss bridge connections has become imperative for many transportation agencies after the recent collapse of the I-35W Bridge in Minneapolis. Detailed engineering capacity calculations of ...
Statistical Modeling of Coupled Shear-Moment Resistance for RC Bridge Girders
Publisher: American Society of Civil Engineers
Abstract: Many reinforced concrete bridges are posted or restricted to traffic, and repair or replacement decisions for these bridges involves both economical and safety considerations. To avoid the high costs of unnecessary replacement ...
Unified Approach for LRFD Live Load Moments in Bridge Decks
Publisher: American Society of Civil Engineers
Abstract: Current AASHTO-LRFD specifications use many disparate design provisions to establish live load demands in bridge decks. As an example, approximately 17% of Chapter 4 addresses the analysis of decks. One of the AASHTO-LRFD ...
Evaluation of Microsilica and Nanosilica on Bond Properties between Moderate–High Strength Concrete and Plain–Ribbed Steel Rebar
Publisher: ASCE
Abstract: Individual and synergistic effects of microsilica (MS) and nanosilica (NS) on the bond properties between moderate–high strength concrete and plain–ribbed steel rebar were investigated. Two different concrete series with ...
Effects of Strain Rate and Size on Concrete under Shear Using Push-Off Tests
Publisher: American Society of Civil Engineers
Abstract: The direct shear behavior of concrete sections is evaluated using push-off specimens. The experimental program consists of three strain rates, ε˙=10−7 s−1, ε˙=10−5 s−1 and ε˙=10−3 s−1, that are used to understand how ...