摘要
预应力锚杆广泛的应用于地下工程中,但是对于其作用机制的研究还存在许多问题。本文基于锚固体与孔壁界面的剪切滑移本构模型,采用荷载传递函数法,对预应力锚杆锚固段剪应力沿长度方向的分布规律进行理论研究,得到了剪应力沿锚杆锚固段轴向的分布曲线,为预应力锚杆设计提供理论依据。
Prestressed rock bolts have been widely used in underground engineering, but there are many problems in the mechanism of the bolt. Based on the shearing slide model of the interface between anchorage and hole, with the load transfer method, a elasto-plastic space model was set up for the theoretical study on the shearing stress distribution law along the length direction. The features of the shearing stress distribution curves were calculated. Through a ease study, the validity of proposed method is verified by comparing the prediced resuks with existing data.
出处
《建筑科学》
北大核心
2009年第9期74-76,共3页
Building Science
关键词
预应力锚杆
锚固段
剪应力
残余强度
prestressed anchor bolt
anchored section
shearing stress
residual strength
