岩土力学Issue(8)：2171-2178,8.
优化的变形协调条件在桩-锚结构锚索拉力计算中的应用
Application of optimized deformation consistence condition to anchor cable tensile force calculation of pile-anchor cable structure
摘要
Abstract
Designing and calculating of anti-slide pile with anchor cable include calculation of anchor cable tensile force and pile internal force. Anchor cable tensile force directly affects pile internal force. Therefore, anchor cable tensile force computing is crucial in the design of pile-anchor cable structure. On the base of conventional and modified deformation consistence conditions, optimized deformation consistence equation of pile-anchor cable structure is established, in which the effect of the displacement and rotation of pile at sliding surface due to prestressed force of anchor cable on the pile displacement contribution at the i row anchor cable point is considered, and the pile displacement due to the effect of other rows anchor cable prestress Rj0 is removed. Meanwhile, the influence of the incremental horizontal component of anchor cable tensile force on the deformation of anti-slide pile is considered. The deformation and rotation of pile on sliding surface and the deformation made by anchor cables of other rows to point of a row anchor is optimized. Combined with principle of structural mechanics which are virtual work and diagram multiplication method, a calculation programs by Visual C++was complied to calculate the prestressed force and anchor cable total tensile force through a case study. The results of the three kinds of deformation consistence conditions show that the optimized deformation consistence condition not only makes the anti-slide pile in a good state of stress and deformation in the prestressed stage, but also be suitable for the anchor cable and horizontal plane into different angles. Therefore, the optimized deformation consistence condition makes up the deficiencies of the conventional and modified deformation consistence conditions.关键词
优化/变形协调/桩-锚结构/锚索预应力/锚索拉力Key words
optimization/deformation consistence/structure of pile-anchor cable/prestressed force of anchor cable/tensile force of anchor cable分类
建筑与水利引用本文复制引用
简文星,邓先华..优化的变形协调条件在桩-锚结构锚索拉力计算中的应用[J].岩土力学,2014,(8):2171-2178,8.基金项目
国家自然科学基金项目（No.41272306）。 （）
