配置预应力无粘结高强钢绞线混凝土柱的试验研究

EXPERIMENTAL STUDY ON RC COLUMN REINFORCED WITH UNBONDED HIGH-STRENGTH STRANDS

地震作用下,建筑物特别是混凝土柱在产生较大残余变形后,即使没有发生倒塌也将无法修复,从而造成巨大的经济损失。在混凝土柱中配置预应力无粘结钢绞线可以有效控制残余变形。国外部分学者对这种混凝土柱进行了研究。在研究国外有关文献的基础上,总结该混凝土柱的研究现状,对影响其性能的部分因素进行试验研究,并指出以后的发展方向。

Even if structure, especially reinforced concrete columns, is not destroyed in the earthquake effect, but the residual deformations may be very large and there will be gigantic economic losses. The unbonded high-strength strand used in the concrete columns can minimize the residual deformations effectively. Some scholars abroad have conducted studies in this subject. The current situation of studying on the prestressed concrete columns is summed up, some factors that influence the performance of the columns are studied, and the developing direction is indicated by summarizing the conclusion of the studies.