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Galvanic Corrosion of ASTM A1010 Steel Connected to Common Bridge Steels
Publisher: ASCE
Abstract: The corrosion behavior of a low chromium-content stainless steel, ASTM A1010 (also under the dual designation ASTM A709 Gr50CR), was investigated. This stainless steel has been identified as a candidate for bridges located ...
The Use of ASTM A1010 (A709 GR50CR) Stainless Steel for Bridges in the United States
Publisher: ASCE
Abstract: ASTM A1010 (A709 Gr50CR) is a dual-phase stainless steel that is gaining popularity in the US bridge market due to its corrosion resistance and potential for life cycle cost savings. Several recent research studies and ...
Tightening Procedures for Proper Installation of Anchor Rods in Ancillary Structures
Publisher: ASCE
Abstract: In the last 2 decades, many ancillary structures have collapsed, with several instances traceable to loose anchor nuts. According to a quality assurance inspection conducted by the Virginia Department of Transportation ...
Investigation of Anchor Nut Loosening on Highway Ancillary Structures
Publisher: ASCE
Abstract: Documented evidence shows that anchor nut loosening on highway ancillary structures has been a problem in the transportation industry since at least the 1990s. There have been reported cases in the past, where loose anchor ...
Diagnostic Load Testing for Improved Accuracy of Bridge Load Rating
Publisher: ASCE
Abstract: Bridge load rating provides a standardized procedure to determine the safe load-carrying capacity of a bridge, thereby allowing engineers to establish posting and permitting requirements. The structural condition of ...
Correlating Surface Hardness to Shear Strength of Driven Rivets and Distribution of In Situ Rivet Hardness
Publisher: ASCE
Abstract: Measuring surface hardness and correlating it to shear strength is a nondestructive test method that can be used when a more accurate estimate of rivet strength is necessary. The objectives of this research were to ...
Measurement and Comparative Study on Movements of Suspenders in Long-Span Suspension Bridges
Publisher: American Society of Civil Engineers
Abstract: Unanticipated damage has been observed in short suspenders near the midspan and/or ends of long-span suspension bridges. The observed damage poses a major threat to public safety if it results in fracture of suspenders ...
Experimental and Analytical Investigation of a 64-Year-Old Prestressed Beam Retrofitted with External Posttensioning
Publisher: ASCE
Abstract: This paper presents an experimental investigation of a 64-year-old, full-scale, simply supported, prestressed bridge girder retrofitted with external posttensioning. The specific retrofit can be used to increase the flexural ...
Seismic Behavior of Steel Moment Frame Connections with Repairs in the Plastic Hinge Region
Publisher: ASCE
Abstract: Steel moment frames develop large drift capacity and dissipate seismic energy through inelastic deformation in the plastic hinge region near the beam-to-column connection. To discourage fracture in this region, known as ...
Load Redistribution and Remaining Fatigue Life of Steel Built-Up Members Subjected to Flexure Following a Component Failure
Publisher: American Society of Civil Engineers
Abstract: Built-up steel girders have been shown to be resistant to total member collapse in the event that a single component fails from brittle fracture or from fatigue. However, accurate methods to determine the remaining capacity ...