PLASTIC ROTATION CAPACITY OF REINFORCED CONCRETE BEAMS

摘要：

The technical guides on structural concrete normally gives the possibility of a elastic analysis of the structures followed by a correction of the internal forces to take into account the nonlinear behaviour of the structural materials.The capacity to withstand plastic rotations is a very important characteristic. Independently from the possibility of correcting the internal forces by the redistribution technique, fragile failures must be avoided. The design should be orientated towards a structure with adequate ductility.The research effort on ductility of concrete structures is showing that ductility can be achieved not only for bending moments, but also for shear and torsion actions. The capacity of plastic torsion deformations is particularly important in curved bridges. This presentation presents the latest developments in this matter, with particular emphasis on the investigation that is being carried out in the University of Coimbra.

关键词： plastic rotation capacity ductility redistribution reinforcement concrete beams structural concrete

作者: S LOPES R CARMO L BERNARDO

作者单位: University of Coimbra,Portugal Polytechnic of Coimbra,Portugal University of Beira Interior,Portugal

会议类型: 国际会议

会议名称: The 3rd International Conference on The Concrete Future(第三届混凝土未来国际会议)

会议地点: 烟台

会议语种:英文

页码: 37-48

在线出版日期: 2008-10-17（万方平台首次上网日期，不代表论文的发表时间）