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RISAnalytical Pushover Method and Hysteretic Modeling of Precast Segmental Bridge Piers with High-Strength Bars Based on Cyclic Loading Test
Publisher: American Society of Civil Engineers
Abstract: Compared to cast-in-place bridge piers, precast piers can accelerate bridge construction, but their use in seismic systems is challenging. High-strength bars (≥500 MPa) incorporated with precast piers can further expedite ...
Bond Behaviors between UHPC and Normal-Strength Concrete: Experimental Investigation and Database Construction
Publisher: ASCE
Abstract: This study builds a large database from an extensive survey of existing bond strengths between ultrahigh-performance concrete (UHPC) and normal-strength concrete (NC), with total 563 specimens being collected. To make up ...
Superior Polyurethane-Based Seamless Expansion Joints for Bridges: Mechanical Properties, Full-Scale Test, and Finite Element Modeling
Publisher: ASCE
Abstract: Seamless expansion joints for small- and medium-span bridges attract engineers due to their acknowledged integrity (durability), driving comfort and noise attenuation. Traditional asphalt plugin joints are easy and cheap ...
Hydration of Concrete Containing Hybrid Recycled Demolition Powders
Publisher: American Society of Civil Engineers
Abstract: If not properly managed, the hybrid powders produced during recycling mixed construction and demolition (C&D) materials will present a serious hazard to the environment and human health. Recent studies have found that ...
Subcritical Crack Growth in Cementitious Materials Subject to Chemomechanical Deterioration: Numerical Analysis Based on Lattice Model
Publisher: ASCE
Abstract: The kinetics of subcritical crack growth (SCG) in hardened cement pastes attacked simultaneously by mechanical damage and calcium leaching was experimentally investigated by a novel test approach in a recent study. Anchored ...
Experimental Study on Creep Failure of Non-Steam-Cured Ultrahigh-Performance Concrete under High Uniaxial Compressive Stress
Publisher: ASCE
Abstract: Ultrahigh-performance concrete (UHPC) creep failure was experimentally investigated under high uniaxial compressive stress. The influence of applied stress levels, loading times, and loading rates was considered. The failure ...