Allowable Displacement of Slope Supported by Frame Structure with Anchors under Earthquake

Abstract

Under the action of an earthquake, a slope can dissipate energy by generating a certain displacement. The critical permanent displacement in the state of limit equilibrium is the allowable displacement of the slope to dissipate seismic energy. Within the range of allowable displacement, the slope can transform and consume the seismic energy by generating displacement safely. However, when the displacement exceeds the allowable displacement, the slope will be unstable. In this paper, considering the mechanism of vibration absorption, and energy dissipation of flexible supporting structures, based on the energy method, the calculation model for the seismic displacement of slope supported by the frame structure with anchors is built, the structural energy dissipation and energy response process under earthquake action are analyzed, and the seismic permanent displacement of the slope is studied. The research results can quantify the energy consumption of the slope supporting structure under earthquake action, optimize the supporting structure according to the energy consumption of the structure, and provide a certain theoretical foundation for the aseismic design of the slope strengthened by the frame structure with anchors.