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RISPrediction of the Postfire Flexural Capacity of RC Beam Using GA-BPNN Machine Learning
Publisher: ASCE
Abstract: To accurately predict the flexural capacity of postfire RC beams is imperative for fire safety design. In this paper, the residual flexural capacity of postfire RC beams is predicted based on a back-propagation (BP) neural ...
Flexural Performance of Polypropylene Fiber Reinforced Scoria Aggregate Concrete Beams after Exposure to Elevated Temperatures
Publisher: ASCE
Abstract: To study the residual strength of concrete beams made from a new type of scoria aggregate after being exposed to fire, six concrete beams were tested, including three normal aggregate concrete (NAC) beams and three scoria ...
A Conductance Based Solids Concentration Sensor for Large Diameter Slurry Pipelines
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An instrument has been developed that measures the solids concentration in slurry pipelines ranging in diameter from 5–150 cm. The operating principle is based on conductance, and in contrast ...
Effects of Steel Braces on Robustness of Steel Frames against Progressive Collapse
Publisher: ASCE
Abstract: External installation of steel braces is an effective approach to increase the lateral load resistance of steel moment-resisting frames. However, the effects of existence of steel braces on the robustness of steel ...
Behavior of Steel Moment Frames Using Top-and-Seat Angle Connections under Various Column-Removal Scenarios
Publisher: ASCE
Abstract: Top-and-seat angle connections are a conventional type of steel moment connection. However, their capacity in accommodating columns loss is rarely studied. In this study, five multistory steel moment subframes using ...
Cyclic Behavior of Four-Limbed Circular CFST Latticed Beam-Columns
Publisher: ASCE
Abstract: Experimental tests to investigate the behavior of four-limbed circular concrete-filled steel tube (CFST) latticed beam-columns under constant axial compression and cyclic lateral force were carried out. Attention was paid ...
Effect of Different Coarse Aggregate Sizes on the Propagation Characteristics of Acoustic Emission Waves in Concrete
Publisher: American Society of Civil Engineers
Abstract: In order to develop a new technology to effectively detect the sizes of the aggregate in existing concrete structure, this study on the influence of coarse aggregate sizes on acoustic emission (AE) signals was performed. ...
Effects of High-Strength Concrete on Progressive Collapse Resistance of Reinforced Concrete Frame
Publisher: ASCE
Abstract: The application of extreme loads, such as impact and blast, may lead to progressive collapse and the robustness of a structure must be considered in this context. Although extensive studies have been carried out in recent ...
Robustness of Post-Tensioned Concrete Beam-Column Subassemblies under Various Column Removal Scenarios
Publisher: ASCE
Abstract: To fully recognize the load-resisting mechanisms of post-tensioned concrete (PC) structures with realistic boundary conditions against disproportionate collapse, four beam-column subassemblies were extracted from a prototype ...
Progressive Collapse Resistance of Emulative Precast Concrete Frames with Various Reinforcing Details
Publisher: ASCE
Abstract: In this paper, three precast concrete (PC) frames and one cast-in-situ reinforced-concrete (RC) frame were cast and tested to investigate the load-resisting mechanisms of emulative PC frames with various reinforcing details ...