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RISMultisection Optimization–Based Target Proof Load Determination Method for Bridge Load Testing
Publisher: ASCE
Abstract: Load testing provides a useful alternative for cases in which current calculation or inspection methods cannot provide satisfactory answers to performance questions about an existing bridge. When determining the target ...
Operational Influence Line Identification of High-Speed Railway Bridge Considering Uncertainty of Train Load
Publisher: American Society of Civil Engineers
Abstract: The bridge influence line (BIL) contains static information for each section of a bridge, which is an important tool for bridge design and condition evaluation. The current influence line identification procedure relies ...
Automated Girder Rotation Assessment of High-Speed Railway Bridges for Operation Safety
Publisher: American Society of Civil Engineers
Abstract: Girder rotation at the bridge support or girder end is a key deformation indicator that reflects the high-speed railway (HSR) bridge stiffness. Large rotation deformation at these locations leads to train derailment risks, ...
On the Displacement of a Two-Dimensional Eshelby Inclusion of Elliptic Cylindrical Shape
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In a companion paper,ff2 we have obtained the closed-form solutions to the stress and strain fields of a two-dimensional Eshelby inclusion. The current work is concerned with the complementary formulation of the displacement. ...
New Method for Investigating Crack Development in Concrete Using an Ultrahigh-Speed Camera
Publisher: American Society of Civil Engineers
Abstract: Cracks are ubiquitous in concrete materials and can destabilize a concrete structure, regardless of size or type. This study focuses on the cracking behavior of main and branching cracks in concrete. Compression tests and ...
Rapid Evaluation of Load-Carrying Capacity of Long-Span Bridges Using Limited Testing Vehicles
Publisher: ASCE
Abstract: Load testing is usually used to evaluate the load-carrying capacity of long-span bridges in their service life. However, a large number of calibration trucks should be arranged in complicated loading patterns to deform ...
Bridge Influence Line Identification Based on Regularized Least-Squares QR Decomposition Method
Publisher: American Society of Civil Engineers
Abstract: The bridge influence line is an important tool to study the bridge response under moving loads and contains tremendous structural information. Structural deterioration during the bridge’s service life will induce variation ...
Experimental Research on Heat Transfer Performance of CO2 Tube Bundle Falling Film Evaporator
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: CO2 is a promising refrigerant substitute, and falling film evaporator is widely used in highcapacity heat pump systems. In this article, a CO2 heat pump experimental device is built. According to experimental parameters, ...
An Inverse Design Method of Buckling-Guided Assembly for Ribbon-Type 3D Structures
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Mechanically guided three-dimensional (3D) assembly based on the controlled buckling of pre-designed 2D thin-film precursors provides deterministic routes to complex 3D mesostructures in diverse functional materials, with ...
Stiffness Estimation of Girder Bridges Using Influence Lines Identified from Vehicle-Induced Structural Responses
Publisher: ASCE
Abstract: The influence line is an important static property in bridges. The shape and magnitude of the girder bridge influence line contain stiffness information for the bridge supports and beam. This research sought to directly ...