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RISConcrete Prisms and Cylinders Wrapped by FRP Loaded in Compression with Small Eccentricities
Publisher: American Society of Civil Engineers
Abstract: Fiber-reinforced polymer (FRP) wrapping has been extensively studied for strengthening reinforced concrete columns. However, few studies were found on the behavior under small eccentric loads, a frequent situation in ...
Experimental Study on Normal-Strength, High-Strength and Ultrahigh-Strength Concrete Confined by Carbon and Glass FRP Laminates
Publisher: American Society of Civil Engineers
Abstract: Confinement of concrete columns with fiber-reinforced polymer (FRP) laminates has been extensively studied in recent decades due to their important applications for strengthening purposes or construction of hybrid elements. ...
Enhanced Power Spectral Density Transmissibility Matrix for Operational Modal Analysis of Structures
Publisher: American Society of Civil Engineers
Abstract: The approach for identifying modal parameters of a structure from power spectral density transmissibility matrices, called the PSDTM-SVD method, is improved to identify modal parameters (including damping ratios) in a ...
Enhanced Power Spectral Density Transmissibility Matrix for Operational Modal Analysis of Structures
Publisher: American Society of Civil Engineers
Abstract: The approach for identifying modal parameters of a structure from power spectral density transmissibility matrices, called the PSDTM-SVD method, is improved to identify modal parameters (including damping ratios) in a ...
Evaluation of Elastic Anisotropic Relations for Plain Concrete Using Ultrasound and Impact Acoustic Tests
Publisher: ASCE
Abstract: Concrete is considered an isotropic material for structural analysis and design purposes. However, during concrete placement and compaction, segregation and bleeding may occur. A water film is deposited around larger ...
Internal Damping Ratio of Ultrahigh-Performance Fiber-Reinforced Concrete Considering the Effect of Fiber Content and Damage Evolution
Publisher: ASCE
Abstract: This paper reports the characterization of internal damping ratio (ξ) and Q factor of ultrahigh-performance fiber-reinforced concrete (UHPFRC) using acoustic tests for undamaged and damaged samples excited by an impact. ...