Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Shear Behavior of Deep Reinforced Concrete Beams. Volume III. Dynamic Tests
Large-scale dynamic tests were performed on deep reinforced concrete beams. Nominal concrete strengths for all tests varied between 2,000 and 3,500 psi; intermediate-grade ASTM A 15 reinforcing steel was used. All beams were simply supported. Tests were performed on nine beams of three span-depth ratios (1.66, 2.67, and 3.62), subjected to a uniformly distributed dynamic transient load. The beams contained longitudinal tensile reinforcing with or without web reinforcing. Both horizontal and vertical web reinforcement were used. Behavior was observed as the span-depth ratio and web reinforcement were varied. Numerous modes of failure in shear were observed as beam configuration was varied. Modes of failure transitioned from shear to flexure as the span-depth ratio increased and the amount and orientation of web reinforcement were varied. Data were correlated with mathematical models derived in this study and with models developed in static tests. The mathematical models were used to investigate shear behavior for deep beams. Equations were developed which predicted the median shear behavior of deep beams with web reinforcement. Dynamic response prediction models were developed which predicted the measured response of the dynamic test beams. Recommendations are made for further research in the development of improved design criteria for Air Force defense systems. (Author)
Shear Behavior of Deep Reinforced Concrete Beams. Volume III. Dynamic Tests
Large-scale dynamic tests were performed on deep reinforced concrete beams. Nominal concrete strengths for all tests varied between 2,000 and 3,500 psi; intermediate-grade ASTM A 15 reinforcing steel was used. All beams were simply supported. Tests were performed on nine beams of three span-depth ratios (1.66, 2.67, and 3.62), subjected to a uniformly distributed dynamic transient load. The beams contained longitudinal tensile reinforcing with or without web reinforcing. Both horizontal and vertical web reinforcement were used. Behavior was observed as the span-depth ratio and web reinforcement were varied. Numerous modes of failure in shear were observed as beam configuration was varied. Modes of failure transitioned from shear to flexure as the span-depth ratio increased and the amount and orientation of web reinforcement were varied. Data were correlated with mathematical models derived in this study and with models developed in static tests. The mathematical models were used to investigate shear behavior for deep beams. Equations were developed which predicted the median shear behavior of deep beams with web reinforcement. Dynamic response prediction models were developed which predicted the measured response of the dynamic test beams. Recommendations are made for further research in the development of improved design criteria for Air Force defense systems. (Author)
Shear Behavior of Deep Reinforced Concrete Beams. Volume III. Dynamic Tests
R. A. Crist (Autor:in)
1968
287 pages
Report
Keine Angabe
Englisch
Civil Engineering , Structural Mechanics , Nuclear Explosions & Devices , Underground structures , Beams(Structural) , Reinforced concrete , Nuclear explosions , Structural properties , Loads(Forces) , Response , Shear stresses , Deflection , Strain(Mechanics) , Flexural strength , Tensile properties , Load distribution , Cracks , Crack propagation , Failure(Mechanics) , Detonation waves , Failure modes , Overpressure , Single degree of freedom
Shear Behavior of Reinforced Concrete Deep Beams
| Online Contents | 2016
Shear tests of reinforced concrete beams
| Engineering Index Backfile | 1926
Shear behavior of reinforced concrete deep beams under static and dynamic loads
| BASE | 2013