An Arc-Consistent Viscous-Spring Artificial Boundary for Numerical Analysis of Seismic Response of Underground Structures

A new arc-consistent viscous-spring artificial boundary (ACVAB) was proposed by changing a traditional flat based on the theory of boundaries. Through examples, concept underpinning establishment and specific setting in finite element software were described. comparison with other commonly used boundaries an example for near-field wave analysis using two-dimensional (2D) half-space model, reliability ACVAB verified. Furthermore, numerical effects earthquake underground structures. The results compared shaking table test On this basis, applicability to model seismic response structures evaluated. show that is superior common terms accuracy stability, therefore, it can be evaluate radiation damping easier use.