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RISDamage Constitutive Model of Fly Ash Concrete under Freeze-Thaw Cycles
Publisher: American Society of Civil Engineers
Abstract: The mechanical deterioration of concrete exposed to freeze-thaw cycles is one of the most important durability problems under subzero temperature conditions. At present, studies on concrete behavior under freeze-thaw cycles ...
Size Effect of Concrete Short Columns Confined with Aramid FRP Jackets
Publisher: American Society of Civil Engineers
Abstract: Most previous studies on concrete short columns confined with fiber-reinforced polymer (FRP) composites were based on small-scale testing, and size effect of the columns still has not been studied thoroughly. In this study, ...
Experimental Investigation on Square High-Strength Concrete Short Columns Confined with AFRP Sheets
Publisher: American Society of Civil Engineers
Abstract: An experimental investigation on square high-strength concrete short columns confined with aramid fiber-reinforced polymer (AFRP) sheets is carried out in this study. Nine plain concrete specimens and 54 wrapped concrete ...
Creep Effects on the Reliability of a Concrete-Filled Steel Tube Arch Bridge
Publisher: American Society of Civil Engineers
Abstract: The deterioration and ageing process make the reliability of bridges a time-variant problem. However, most studies about time-dependent reliability focus on material corrosion and damage, less attention is given to the ...
Quasi Static Analysis of the Multicomponent Mooring Line for Deeply Embedded Anchors
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Multicomponent taut mooring lines are widely used to secure floating facilities to anchors embedded in the seabed to restrict motions. Optimal design of the mooring line system requires a realistic model of the combined ...
Long-Term Leaching Behavior of Chromite Ore Processing Residue as Backfill Material and the Propagation of Chromium in the Surrounding Soil
Publisher: ASCE
Abstract: Leaching characteristics of chromium ore processing residue (COPR) for the long term (simulating a 20-year leaching scenario) were investigated using laboratory flow-through column testing with synthetic rainwater and ...
Plastic-Energy Dissipation in Pressure-Dependent Materials
Publisher: ASCE
Abstract: A thermodynamics-based energy analysis approach for pressure-dependent materials is presented. Formulation of plastic free energy and plastic dissipation for the nonassociated Drucker-Prager plasticity model is derived ...
Energy Dissipation in Solids due to Material Inelasticity, Viscous Coupling, and Algorithmic Damping
Publisher: American Society of Civil Engineers
Abstract: Presented is a study on energy dissipation in dynamic inelastic systems due to material inelasticity, viscous damping, and algorithmic damping. Formulation for plastic dissipation is based on thermodynamics, with consideration ...
Electrokinetic Dewatering of Sewage Sludge with Fixed and Moving Electrodes: Attenuation Mechanism and Improvement Approach
Publisher: American Society of Civil Engineers
Abstract: This paper presents a laboratory study on electrokinetic dewatering (EKD) of sewage sludge with fixed and moving electrodes. The experiments with fixed electrodes were conducted in two purposely designed Perspex cylinders ...
Damping Properties of Highway Bridges in China
Publisher: American Society of Civil Engineers
Abstract: Full-scale data on the natural frequencies and the damping ratios of 114 highway bridges in China, and the dynamic characteristics monitoring data of four bridges under ambient excitation, have been collected and analyzed. ...