SHEAR STRESS ANALYSIS OF BENDING ANCHORAGE SECTION OF PRESTRESSED ANCHOR CABLE BASED ON MINDLIN SOLUTION

In order to study the anchorage mechanism of pressure cables more accurately, considering the anchor cable tunnel to be bent, based on the basic solution of Mindlin and the stress analysis of the plane stress state, the theoretical solution of shear stress at any point in the internal and external curves of the pressure anchor cable bending anchorage section were derived. A case was analyzed based on the existing research results, the results showed that the peak shear stress on the internal curve was larger than that on the external curve, the peak shear stress on the straight line was larger than that on the internal curve, and the prestressed loads and the radius of curvature were positively correlated with the shear stress distribution curve and the peak shear stress.