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RISReinforcing NiTi Superelastic SMA for Concrete Structures
Publisher: American Society of Civil Engineers
Abstract: Superelastic (SE) shape memory alloy (SMA) is an advanced material that may be used as an alternative to conventional reinforcing steel in civil engineering structures to control residual deformations. The most common SE ...
Effectiveness of Composites in Earthquake Damage Repair of Reinforced Concrete Flared Columns
Publisher: American Society of Civil Engineers
Abstract: A method to utilize fiber composites for rapid repair of earthquake damaged flared columns was developed. Two 0.4-scale reinforced concrete columns that had been tested to failure in previous research were used. Both columns ...
Time-Dependent Analysis of Posttensioned Bridge Hinge Curl
Publisher: American Society of Civil Engineers
Abstract: Accurate prediction of instantaneous and time-dependent deformation of superstructure in-span hinges is important for preventing a mismatch of bridge decks. Time-dependent deflection of in-span hinges hinge curl in ...
Cyclic Response of Precast Bridge Piers with Novel Column-Base Pipe Pins and Pocket Cap Beam Connections
Publisher: American Society of Civil Engineers
Abstract: Prefabrication of structural elements is the integral part of accelerated bridge construction (ABC). Providing constructible beam-column and column-foundation connections that can tolerate inelastic cyclic deformations is ...
Response and Design of R/C One-Way Pier Hinges in Strong Direction
Publisher: American Society of Civil Engineers
Abstract: This paper presents the results of an experimental and analytical evaluation of one-way reinforced-concrete pier hinges subjected to a combination of axial compression, shear, and moment in the strong direction. Thirty-four ...
Analytical Studies of a Novel Bridge Column-Footing Pipe Pin Connection under Lateral Loading
Publisher: ASCE
Abstract: Different types of connections have been used in practice to simulate a hinge behavior at the base of bridge columns. Previous earthquakes demonstrated that none of them could remain elastic and damage free during the ...
Simple Carbon-Fiber-Reinforced-Plastic-Confined Concrete Model for Moment-Curvature Analysis
Publisher: American Society of Civil Engineers
Abstract: This paper presents a simple model to calculate concrete properties for reinforced concrete members that are confined by carbon-fiber-reinforced plastic (CFRP) sheets. The model simplifies and incorporates formulas from ...
Bearing and Shear Failure of Pipe-Pin Hinges Subjected to Earthquakes
Publisher: American Society of Civil Engineers
Abstract: Pipe-pin rotational two-way column hinges were developed by bridge designers at the California Department of Transportation. An extensive experimental and analytical study was undertaken to understand the behavior of ...
Nonlinear Earthquake Response Modeling of a Large-Scale Two-Span Concrete Bridge
Publisher: American Society of Civil Engineers
Abstract: A quarter scale model of a two-span RC bridge was tested using the Network for Earthquake Engineering Simulation (NEES) multiple shake table system at the University of Nevada, Reno, Nev. The project was funded through a ...
Large-Scale Biaxial Shake-Table Studies of a Precast Bridge Model
Publisher: ASCE
Abstract: Shake-table studies were conducted on a large-scale, two-span accelerated bridge construction (ABC) bridge model that incorporated 38 precast concrete elements and six emulative ABC connection types. The studies were aimed ...