Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for determining bearing capacity of pile-anchor composite foundation
The invention discloses a method for determining the bearing capacity of a pile-anchor composite foundation, which comprises the following steps of: when the number of rock anchor rods is not less than 6, enabling the rock anchor rods on the periphery of the pile foundation to be equivalent to steel rings of which the radius is equal to the radius of a circle where the centers of the rock anchor rods are located; the section of the bottom of the pile-anchor composite foundation is divided into a pile end base compression area, a steel ring elastic tension area and a steel ring plastic tension area. A bearing capacity calculation sketch of the bottom section of the pile-anchor composite foundation is determined, central angles corresponding to a pile end base compression area and a steel ring plastic tension area are obtained, and then the resultant force and the internal torque of the pile end base compression area, the resultant force of the steel ring plastic tension area and the torque of the resultant force to the center of the section are calculated; determining an angle range of an elastic tension area of the steel ring, and calculating a resultant force and an internal torque of the elastic tension area of the steel ring based on the angle range of the elastic tension area of the steel ring; according to the internal force balance condition, the axial pressure and the internal torque of the bottom section of the pile-anchor composite foundation are calculated, and the bearing capacity of the pile-anchor composite foundation is calculated.
本发明公开了一种桩锚复合基础的承载力确定方法，岩石锚杆的根数不少于6根时，将桩基础外围的岩石锚杆等效为半径是岩石锚杆中心所在圆的半径的钢环，桩锚复合基础底部截面分为桩端基底受压区、钢环弹性受拉区和钢环塑性受拉区；确定桩锚复合基础底部截面的承载力计算简图，得到桩端基底受压区以及钢环塑性受拉区所对应的圆心角，进而计算桩端基底受压区合力、内力矩以及钢环塑性受拉区的合力及其对截面中心的力矩；确定钢环弹性受拉区的角度范围，并基于钢环弹性受拉区的角度范围计算钢环弹性受拉区的合力、内力矩；根据内力平衡条件，计算桩锚复合基础底部截面处的轴向压力及桩锚复合基础底部截面处的内力矩，实现桩锚复合基础的承载力计算。
Method for determining bearing capacity of pile-anchor composite foundation
The invention discloses a method for determining the bearing capacity of a pile-anchor composite foundation, which comprises the following steps of: when the number of rock anchor rods is not less than 6, enabling the rock anchor rods on the periphery of the pile foundation to be equivalent to steel rings of which the radius is equal to the radius of a circle where the centers of the rock anchor rods are located; the section of the bottom of the pile-anchor composite foundation is divided into a pile end base compression area, a steel ring elastic tension area and a steel ring plastic tension area. A bearing capacity calculation sketch of the bottom section of the pile-anchor composite foundation is determined, central angles corresponding to a pile end base compression area and a steel ring plastic tension area are obtained, and then the resultant force and the internal torque of the pile end base compression area, the resultant force of the steel ring plastic tension area and the torque of the resultant force to the center of the section are calculated; determining an angle range of an elastic tension area of the steel ring, and calculating a resultant force and an internal torque of the elastic tension area of the steel ring based on the angle range of the elastic tension area of the steel ring; according to the internal force balance condition, the axial pressure and the internal torque of the bottom section of the pile-anchor composite foundation are calculated, and the bearing capacity of the pile-anchor composite foundation is calculated.
本发明公开了一种桩锚复合基础的承载力确定方法，岩石锚杆的根数不少于6根时，将桩基础外围的岩石锚杆等效为半径是岩石锚杆中心所在圆的半径的钢环，桩锚复合基础底部截面分为桩端基底受压区、钢环弹性受拉区和钢环塑性受拉区；确定桩锚复合基础底部截面的承载力计算简图，得到桩端基底受压区以及钢环塑性受拉区所对应的圆心角，进而计算桩端基底受压区合力、内力矩以及钢环塑性受拉区的合力及其对截面中心的力矩；确定钢环弹性受拉区的角度范围，并基于钢环弹性受拉区的角度范围计算钢环弹性受拉区的合力、内力矩；根据内力平衡条件，计算桩锚复合基础底部截面处的轴向压力及桩锚复合基础底部截面处的内力矩，实现桩锚复合基础的承载力计算。
Method for determining bearing capacity of pile-anchor composite foundation
桩锚复合基础的承载力确定方法
WANG YUAN (Autor:in) / CHEN HAO (Autor:in) / TAO FENGJUAN (Autor:in) / ZHANG CHAO (Autor:in) / YI LIMING (Autor:in) / WANG XU (Autor:in) / ZHANG CHUNSHUN (Autor:in) / HE HAINI (Autor:in)
23.07.2024
Patent
Elektronische Ressource
Chinesisch
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