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RISInterfacial Parameters for Bridge Connections at High-Strength Concrete–Ultrahigh-Performance Concrete Interface
Publisher: ASCE
Abstract: There has been a rapid increase in the use of ultrahigh-performance concrete (UHPC) in bridge connections and in bridge rehabilitation. When using UHPC in bridge construction, one common recommendation is that UHPC reach ...
Bond Characterization and Interfacial Coefficients at Precast UHPC and Cast-in-Place UHPC Interface
Publisher: ASCE
Abstract: Ultrahigh performance concrete (UHPC) is an advanced composite material that exhibits superior compressive and tensile strengths as well as negligible permeability. Although the mechanical properties of UHPC are extensively ...
Evaluation of Transverse Tie Rods in a 50-Year-Old Adjacent Prestressed Concrete Box Beam Bridge
Publisher: American Society of Civil Engineers
Abstract: Adjacent prestressed concrete box beam bridges are one of the most popular bridges in the United States for short to medium spans. Recently, there has been concern about the structural capacity of these bridges as they age ...
Effect of Cyclic Temperature and Fatigue Load on the Performance of Bond Strength at High-Strength Concrete–UHPC Interface
Publisher: American Society of Civil Engineers
Abstract: One of the most important components of box beam bridges is the shear key that connects the box beams together. The shear keys in box beam bridges often fail at the interface. In recent years, ultrahigh-performance concrete ...
Early-Age Behavior of an Adjacent Prestressed Concrete Box-Beam Bridge Containing UHPC Shear Keys with Transverse Dowels
Publisher: American Society of Civil Engineers
Abstract: Adjacent precast prestressed concrete box-beam bridges have been used in the United States for many years and have performed well. However, the shear keys between adjacent box beams are susceptible to cracking, which can ...
Thermally Induced Behavior of Paired Internally Cured Concrete and Conventional Concrete Decks in Composite Bridges
Publisher: ASCE
Abstract: Many states have problems with transverse cracking of the concrete bridge decks. These cracks occur in negative and positive moment regions and can affect the serviceability of the decks. To improve the deck durability, ...
Live-Load Moment-Distribution Factors for an Adjacent Precast Prestressed Concrete Box Beam Bridge with Reinforced UHPC Shear Key Connections
Publisher: American Society of Civil Engineers
Abstract: In this study, the live-load moment-distribution factors (LLMDFs) were evaluated for an adjacent precast prestressed concrete box beam bridge. The bridge used a new shear key configuration, which was grouted with ultrahigh ...
Early-Age Behavior of Internally Cured Concrete Bridge Deck under Environmental Loading
Publisher: ASCE
Abstract: The early-age cracking of bridge decks is a typical issue in the US that reduces service life. Internally cured (IC) concrete has been used in some states to reduce or eliminate the development of cracks in reinforced ...
Effects of Temperature Distributions on Thermally Induced Behavior of UHPC Shear Key Connections of an Adjacent Precast Prestressed Concrete Box Beam Bridge
Publisher: American Society of Civil Engineers
Abstract: Recently, there has been a rapid increase in using ultrahigh-performance concrete (UHPC) in bridge connections due to its high compressive strength, pre- and postcracking tensile strengths, superior bond, and durability ...
Experimental Investigation of Direct Tension Bond Performance of High-Strength Concrete and Ultrahigh-Performance Concrete Connections
Publisher: American Society of Civil Engineers
Abstract: The outstanding mechanical and bond strength properties of ultrahigh-performance concrete (UHPC), as well as its long-term durability, make it a suitable material to be used in connections of accelerated bridge construction ...