摘要
通过对72个HRB500钢筋粘结锚固试件的拉拔试验,研究HRB500钢筋的粘结锚固性能.在试验的基础上给出了HRB500钢筋粘结强度的计算公式,并在可靠度分析的基础上提出了HRB500钢筋混凝土构件的锚固长度设计建议.研究表明:HRB500钢筋的粘结锚固性能与普通月牙肋钢筋相同,其粘结性能随混凝土的强度提高而提高;当c/d<4 5,粘结强度随保护厚度的增大而增大,随锚固长度的增加而降低.锚固长度可按现行《混凝土结构设计规范》(GB50010-2002)的规定公式计算.
Based on 72 HRB500 pull-out tests, this paper investigates the bond-anchorage properties of HRB500 steel bars. Then the calculating formula of bond strength has been established on the tests, and the design of anchoring length by way of reliability analysis of HRB500 steel bars concrete elements is proposed. The result is that the bond-anchorage property of HRB500 steel bar is identical to that of common crescent ribbed bar, the anchoring length can be designed with the formula in 《code for design of concrete structures》(GB50010-2002).
出处
《郑州大学学报（工学版）》
CAS
2004年第2期54-58,共5页
Journal of Zhengzhou University（Engineering Science）
基金
河南省自然科学基金科研项目(0040041800)
