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Development of a Novel Anchorage System for Shape Memory Alloy Bars in Self-Centering Structures
Publisher: ASCE
Abstract: Shape memory alloys (SMAs) show great potential in self-centering structures because of their appealing superelastic feature and good energy dissipation capability. The mechanical properties of SMA bars have been extensively ...
Development of Novel Buckling-Restrained Steel Braces Enabled by Partial Induction Hardening
Publisher: American Society of Civil Engineers
Abstract: A new type of buckling-restrained brace (BRB), called induction-hardened buckling-restrained brace (IHBRB), is proposed in this study. The IHBRB uses a round bar as the core steel and a hollow round section as the restrainer. ...
New Approach for Modeling Confined Concrete. II: Rectangular Columns
Publisher: American Society of Civil Engineers
Abstract: This is the second of two papers presenting the results of a research program aimed at studying the stress-strain response of confined concrete. A confinement model for spirally confined concrete has been developed and ...
New Approach for Modeling Confined Concrete. I: Circular Columns
Publisher: American Society of Civil Engineers
Abstract: An analytical stress-strain model for concrete confined by spiral steel was developed. The model is based on the concrete–spiral steel interaction. The deformational behavior of concrete under axial and lateral compression ...
Design for Shear of Prestressed Concrete Beam-Column Joint Cores
Publisher: American Society of Civil Engineers
Abstract: Reversed cyclic loading tests of eight prestressed and two nonprestressed concrete exterior beam-column joint assemblies that failed inside the joint cores were conducted. The test results revealed no significant difference ...
Shear Resistance Mechanism of Posttensioned Precast Concrete Members
Publisher: American Society of Civil Engineers
Abstract: An analytical model to investigate the shear resistance mechanism of a posttensioned precast concrete (PPC) member is proposed. The model is based on the truss mechanism. The compatibility of strains and the equilibrium ...
Evaluation of the Seismic Performance of Unbonded Post-Tensioned Precast Concrete Walls with Internal and External Dampers. II: Design Criteria and Numerical Research
Publisher: ASCE
Abstract: This paper presents an analytical procedure to assess the monotonic (envelope) force-deformation response (capacity curve) of unbonded post-tensioning precast concrete (UPT) walls with internal and external replaceable ...
Evaluation of the Seismic Performance of Unbonded Post-Tensioned Precast Concrete Walls with Internal and External Dampers. I: Experimental Research
Publisher: ASCE
Abstract: This paper presents the results of an experimental investigation on the performance of half-scale, unbonded, post-tensioning, precast concrete walls subjected to fully reversed cyclic loads. Moreover, this paper discusses ...