摘要
以预应力螺旋肋钢棒为研究对象,通过拉拔试验得到了极限粘结强度的计算公式,针对锚固极限状态,采用Hasofer-Lind一次二阶矩法进行了可靠度计算,并提出了预应力螺旋肋钢棒锚固长度的设计公式,有利于该材料的推广应用。
Taking the prestressed spiral ribbed steel bar as the research object,the paper concludes the calculation formula for the ultimate bond stress by the drawing test,adopts Hasofer-Lind First-order Second-moment Method according to the anchorage ultimate status,and points out the design formula of the prestressed spiral ribbed steel bar in common projects,so as to expand its application.
出处
《山西建筑》
2016年第6期47-48,共2页
Shanxi Architecture
关键词
预应力钢棒
可靠度计算
一次二阶矩法
锚固长度
prestresse steel bar
reliability calculation
First-order Second-moment Method
anchorage length
