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RISExtending the Direct Strength Method for Cold-Formed Steel Design to Through-Fastened Simple Span Girts and Purlins with Laterally Unbraced Compression Flanges
Publisher: American Society of Civil Engineers
Abstract: A direct-strength method (DSM) prediction approach is introduced and validated for metal building wall and roof systems that are constructed with steel panels through-fastened with screws to girts or purlins. The focus is ...
Metal Building Vehicular-Access Door Wind Analysis and Design
Publisher: American Society of Civil Engineers
Analysis of Elastic, Doubly Symmetric, Horizontally Curved Beams during Lifting
Publisher: American Society of Civil Engineers
Abstract: The lifting of horizontally curved beams (or almost-straight beams with an imperfection in shape) is considered, with application in the construction of bridges. A circularly curved beam that is suspended at two symmetric ...
Experiments on Cold-Formed Steel C-Section Joists with Unstiffened Web Holes
Publisher: American Society of Civil Engineers
Abstract: Experiments were conducted on cold-formed steel C-section joists with rectangular unstiffened web holes. The presence of holes decreased joist capacity and amplified distortional buckling deformation. Distortional buckling ...
Reinforced Concrete Force Visualization and Design Using Bilinear Truss-Continuum Topology Optimization
Publisher: American Society of Civil Engineers
Abstract: A new force visualization and design tool employing hybrid topology optimization is introduced for RC and prestressed concrete structural members. The optimization scheme couples a minimum compliance (maximum stiffness) ...
Field Verification of Simplified Analysis Procedures for Segmental Concrete Bridges
Publisher: American Society of Civil Engineers
Abstract: Load tests on segmental bridges are uncommon in the literature given their relatively short history and comparatively smaller presence in the national bridge inventory. This paper presents results from two segmental concrete ...
Structural Analysis and Load Test of a Nineteenth-Century Iron Bowstring Arch-Truss Bridge
Publisher: American Society of Civil Engineers
Abstract: A structural study examines the oldest remaining metal bridge in the Commonwealth of Virginia, a wrought-iron bowstring arch truss, designed and manufactured by the King Iron Bridge Company. Finite-element analysis is used ...
Three-Dimensional Force Flow Paths and Reinforcement Design in Concrete via Stress-Dependent Truss-Continuum Topology Optimization
Publisher: American Society of Civil Engineers
Abstract: Strut-and-tie models (STMs) are widely used by RC designers. However, selection of a viable model is a challenging task, especially in complex three-dimensional (3D) design domains with irregular cutouts, which are common ...
Triaxial Constitutive Law for Ultra-High-Performance Concrete and Other Fiber-Reinforced Cementitious Materials
Publisher: ASCE
Abstract: This paper presents a triaxial constitutive model for fiber-reinforced cementitious materials (FRCM), with an emphasis on ultra-high-performance concrete (UHPC). The model accounts for the multiaxial stress-strain behavior ...
System Reliability of Floor Diaphragms Framed from Cold-Formed Steel with Wood Sheathing
Publisher: American Society of Civil Engineers
Abstract: A high-fidelity simulation-based system reliability calculation methodology was implemented for steel floor diaphragms framed from cold-formed steel joists topped with wood sheathing, leading to design recommendations that ...