论文部分内容阅读
抗浮锚杆设计时应考虑上部结构荷载分布、基础形式、上部结构及基础刚度等因素对锚杆受力均匀性的影响,地下室结构的整体和局部变形是锚杆受力的根本原因。通过建立包含上部结构、基础和锚杆的整体有限元模型来进行抗浮计算和分析,得到了抗浮锚杆的受力特点和分布规律,同时给出了锚杆的合理布置原则。上部结构荷载影响区域决定了锚杆的布置,设计中应仔细分析该区域的范围和基底压力的大小及分布,以确保锚杆受力的合理性、均匀性及安全性;基础底板构件设计时,锚杆可视为其弹簧支座。
The design of anti-floating anchor should take into account the influence of superstructure load distribution, foundation form, superstructure and foundation stiffness on the stress uniformity of anchor. The overall and local deformation of basement structure is the root cause of anchor force. The anti-floating calculation and analysis are carried out by establishing the integral finite element model including the superstructure, foundation and anchor. The force characteristics and distribution of the anti-floating anchor are obtained. At the same time, the reasonable arrangement principle of the anchor is given. The area affected by the superstructure load determines the layout of the anchor. The scope of the area and the size and distribution of the base pressure should be carefully analyzed in the design so as to ensure the rationality, uniformity and safety of the anchor. The design time of the foundation slab , The bolt can be regarded as its spring support.