Pile foundation low-cycle repeated load test design method for simulating seismic oblique wave incidence

Abstract

The invention relates to the technical field of seismic engineering, and particularly discloses a pile foundation low-cycle repeated load test design method for simulating seismic oblique wave incidence, which comprises the following steps of: firstly, ensuring that a test result only reflects the action effect of oblique incidence seismic waves by using a gravity compensation component and an angle compensator, and eliminating the influence of non-seismic wave force; then, processing the soil mass data to obtain a density abnormal factor and a water content abnormal factor, and calculating a pile foundation bearing capacity signal according to the density abnormal factor and the water content abnormal factor; based on the bearing capacity signal, further obtaining pile foundation energy consumption data and displacement data, and comprehensively analyzing the data to calculate an anti-seismic performance comprehensive score of the pile foundation; if the score is lower than a preset threshold value, optimizing test conditions by adjusting simulated oblique incidence seismic waves at different angles until the anti-seismic performance of the pile foundation reaches a preset standard; the test precision and reliability can be improved, and the anti-seismic property of the pile foundation is optimized.

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