Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Concrete Confined by Rectangular Hoops and Subjected to Axial Loads
Results of an experimental investigation carried out on the subject of concrete confined by rectangular hoops subjected to axial loads are reported. The behavior of the confined concrete is studied regarding the effect of three parameters: (1) concrete cover, (2) lateral reinforcement (confinement), and (3) longitudinal reinforcement. Fourteen prismatic specimens were tested. These were subjected to monotonically increasing axial compressive loads applied at low strain rates. The experimental results obtained are then evaluated and subsequently compared with the results predicted by other researchers. Current methods of predicting behavior for axially loaded confined concrete are shown to be inaccurate insofar as estimating the maximum stress levels, the strain values corresponding to the maximum stress levels, and the strain values in the descending branch of the longitudinal stress-strain curve. An analytical stress-strain relationship is suggested, which considers the increase in strength and ductility caused by the lateral and longitudinal reinforcement and which gives better agreement with the experimental results obtained than those predicted using current stress-strain relationships.
Concrete Confined by Rectangular Hoops and Subjected to Axial Loads
Results of an experimental investigation carried out on the subject of concrete confined by rectangular hoops subjected to axial loads are reported. The behavior of the confined concrete is studied regarding the effect of three parameters: (1) concrete cover, (2) lateral reinforcement (confinement), and (3) longitudinal reinforcement. Fourteen prismatic specimens were tested. These were subjected to monotonically increasing axial compressive loads applied at low strain rates. The experimental results obtained are then evaluated and subsequently compared with the results predicted by other researchers. Current methods of predicting behavior for axially loaded confined concrete are shown to be inaccurate insofar as estimating the maximum stress levels, the strain values corresponding to the maximum stress levels, and the strain values in the descending branch of the longitudinal stress-strain curve. An analytical stress-strain relationship is suggested, which considers the increase in strength and ductility caused by the lateral and longitudinal reinforcement and which gives better agreement with the experimental results obtained than those predicted using current stress-strain relationships.
Concrete Confined by Rectangular Hoops and Subjected to Axial Loads
J. Vallenas (Autor:in) / V. V. Bertero (Autor:in) / E. P. Popov (Autor:in)
1977
125 pages
Report
Keine Angabe
Englisch
Concrete Columns Confined by High-Strength Hoops
| British Library Conference Proceedings | 1995
An experimental study on concrete columns confined by steel plate hoops under axial compression
| British Library Conference Proceedings | 1994
Reinforced Concrete Columns Confined by Circular Spirals and Hoops
| Online Contents | 1993