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Offshore single-pile foundation distributed pile-soil interaction damping calculation method, equipment and medium
The invention relates to an offshore single-pile foundation distributed pile-soil interaction damping calculation method, equipment and a medium. The calculation method comprises the steps that S1, a soil unit damping ratio-cyclic shear strain curve of a soil layer of a target site is obtained; s2, calculating the pile-soil interaction damping of the single-pile foundation on the p-y spring layer; s3, pile body deformation of the single pile in the depth direction under the target cyclic load amplitude is calculated; s4, according to the pile body displacement response, p-y spring counterforce is obtained, according to the horizontal displacement of each p-y spring, the corresponding damping ratio is determined, and the secant rigidity of the corresponding p-y spring under the displacement amplitude is calculated; and S5, calculating the damping coefficient of the p-y spring layer. Compared with the prior art, the method has the advantages that actual soil layer distribution and damping-strain characteristics of all soil layers can be considered, and the calculation result is more accurate; the method is simple and easy to operate; input can be provided for draught fan integrated time domain analysis software, and the method is used for exploring the load reduction effect of pile-soil interaction damping on the dynamic response of a draught fan structure.
本发明涉及一种海上单桩基础分布式桩‑土相互作用阻尼计算方法、设备、介质，计算方法包括：S1、获取目标场地土层的土单元阻尼比‑循环剪应变曲线；S2、计算p‑y弹簧层面单桩基础桩‑土相互作用阻尼；S3、计算目标循环荷载幅值下的单桩沿深度方向桩身变形；S4、根据桩身位移响应，获得p‑y弹簧反力以及根据每根p‑y弹簧的水平位移，确定其对应的阻尼比，计算对应的p‑y弹簧在该位移幅值下的割线刚度；S5、计算p‑y弹簧层面的阻尼系数。与现有技术相比，本发明具有可考虑实际的土层分布及各土层的阻尼‑应变特征，计算结果更准确；方法简便，易操作；可为风机一体化时域分析软件的提供输入，用来探究桩‑土相互作用阻尼对风机结构动力响应的降载效果。
Offshore single-pile foundation distributed pile-soil interaction damping calculation method, equipment and medium
The invention relates to an offshore single-pile foundation distributed pile-soil interaction damping calculation method, equipment and a medium. The calculation method comprises the steps that S1, a soil unit damping ratio-cyclic shear strain curve of a soil layer of a target site is obtained; s2, calculating the pile-soil interaction damping of the single-pile foundation on the p-y spring layer; s3, pile body deformation of the single pile in the depth direction under the target cyclic load amplitude is calculated; s4, according to the pile body displacement response, p-y spring counterforce is obtained, according to the horizontal displacement of each p-y spring, the corresponding damping ratio is determined, and the secant rigidity of the corresponding p-y spring under the displacement amplitude is calculated; and S5, calculating the damping coefficient of the p-y spring layer. Compared with the prior art, the method has the advantages that actual soil layer distribution and damping-strain characteristics of all soil layers can be considered, and the calculation result is more accurate; the method is simple and easy to operate; input can be provided for draught fan integrated time domain analysis software, and the method is used for exploring the load reduction effect of pile-soil interaction damping on the dynamic response of a draught fan structure.
本发明涉及一种海上单桩基础分布式桩‑土相互作用阻尼计算方法、设备、介质，计算方法包括：S1、获取目标场地土层的土单元阻尼比‑循环剪应变曲线；S2、计算p‑y弹簧层面单桩基础桩‑土相互作用阻尼；S3、计算目标循环荷载幅值下的单桩沿深度方向桩身变形；S4、根据桩身位移响应，获得p‑y弹簧反力以及根据每根p‑y弹簧的水平位移，确定其对应的阻尼比，计算对应的p‑y弹簧在该位移幅值下的割线刚度；S5、计算p‑y弹簧层面的阻尼系数。与现有技术相比，本发明具有可考虑实际的土层分布及各土层的阻尼‑应变特征，计算结果更准确；方法简便，易操作；可为风机一体化时域分析软件的提供输入，用来探究桩‑土相互作用阻尼对风机结构动力响应的降载效果。
Offshore single-pile foundation distributed pile-soil interaction damping calculation method, equipment and medium
一种海上单桩基础分布式桩-土相互作用阻尼计算方法、设备、介质
ZHANG YOUHU (author) / GUO PENG (author) / BI QIAN (author) / DI TONGYU (author)
2024-08-09
Patent
Electronic Resource
Chinese
| European Patent Office | 2024
| European Patent Office | 2024
| European Patent Office | 2023