Performance Seismic Design Method of Highway Tunnel Structure Based on Simulated Annealing Algorithm

In order to improve the anti-seismic performance and detection ability of highway tunnel, a performance-based anti-seismic design method of highway tunnel based on simulated annealing algorithm is proposed. Taking model material, design parameters of highway tunnel structure and counterweight of frame structure under earthquake excitation as constraint index parameter set, the seismic structural performance test model of highway tunnel is constructed. The parameter adaptive estimation method is used to estimate the influence coefficient of seismic strength and heavy load parameters of highway tunnel structure. The characteristic equation of seismic tensile stress is established by simulated annealing algorithm, and the seismic design of highway tunnel structure is realized by parameter optimization. The test results show that the seismic performance detection ability of this method is good, and the tension prediction accuracy can reach 99.3%, which improves the stability of highway tunnel structure.