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Enhanced Strain Beam Formulation Resolving Several Issues of Displacement-Based Elements for Nonlinear Analysis
Publisher: American Society of Civil Engineers
Abstract: This paper presents an enhanced-strain beam formulation for the analysis of frame structures with material and geometric nonlinearities. The focus is on slender members, for which the Euler–Bernoulli beam theory can be ...
Triaxial Constitutive Model for Concrete under Cyclic Loading
Publisher: American Society of Civil Engineers
Abstract: This paper presents a material model for the analysis of concrete under multiaxial, cyclic loading conditions. An elastoplastic formulation, having a nonassociative flow rule to capture compression-dominated behavior, is ...
Triaxial Constitutive Model for Concrete under Cyclic Loading
Publisher: American Society of Civil Engineers
Abstract: This paper presents a material model for the analysis of concrete under multiaxial, cyclic loading conditions. An elastoplastic formulation, having a nonassociative flow rule to capture compression-dominated behavior, is ...
Constitutive Model for Reinforcing Steel under Cyclic Loading
Publisher: American Society of Civil Engineers
Numerical Study of Masonry-Infilled RC Frames Retrofitted with ECC Overlays
Publisher: American Society of Civil Engineers
Abstract: This paper presents a nonlinear finite-element modeling method to evaluate the seismic performance of reinforced concrete (RC) frames that have unreinforced masonry infill walls retrofitted with engineered cementitious ...
Phase-Field Description of Ductile Fracture in Structural Steel under Cyclic Loading
Publisher: ASCE
Abstract: This paper presents analysis of fracture in structural steel subjected to cyclic loads, which is of paramount importance for evaluating the safety of steel buildings exposed to extreme events such as strong earthquakes. ...
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 ...
Analytical Evaluation of Corrosion-Induced Strength Degradation in Prestressed Bridge Girders
Publisher: ASCE
Abstract: This paper uses nonlinear analysis to determine the impact of corrosion-induced damage on the load-carrying capacity of prestressed concrete bridge girders. The analyses rely on two types of models, namely, beam models and ...
Finite Element Analysis of Chloride Ingress in Prestressed Concrete Bridge Girders Accounting for Service-Life Ambient Conditions
Publisher: ASCE
Abstract: This paper introduces a computational simulation scheme to describe the intrusion of corrosion-inducing chloride ions in prestressed bridge girders. This phenomenon impacts the durability of bridges in coastal zones or ...
Design Considerations for Composite Steel Bridges Using 29-mm Diameter Shear Studs and Partial-Depth Precast Concrete Panels: A Finite-Element Study
Publisher: American Society of Civil Engineers
Abstract: This paper uses finite-element analysis of steel–concrete composite subassemblages, to develop design recommendations for composite steel bridges using 29-mm diameter shear studs, while also exploring the effect of ...