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《China Railway Science》 2004-05
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Analysis of Displacement and Deformation of Anchor Bolt under Elastic State

ZOU Jin-feng, LI Liang, RUAN Bo(School of Civil Engineering and Architecture, Central South University, Changsha Hunan410075, China)  
The pulling displacement of the anchor bolt is broken down into the elastic deformation of the free segment, the tensile deformation of the anchored segment and the relative shear displacement between the bolt and soil. Factors affecting the displacement of anchor bolt are analyzed, such as free segment length of the anchor bolt, the length of the anchored segment, the section area of the anchor bolt, strength of concrete, bore diameter of anchor bolt, shear modulus of soil and elastic modulus of the anchor bolt, etc. On this basis, on the supposition that the shear stress increases by degrees with shear displacement linearly between the bolt and surrounding soil, the axis force acting on the bolt distributes in the form of a parabola, relational expression between the load and the displacement of the anchor bolt is established.
【CateGory Index】: U416.1
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