Abstract：
According to an analysis of the actual degree of seismic damage to highway tunnels under different conditions, and referring to seismic fortification goals for other sectors, such as buildings, bridges, rail transit and railway engineering, the performance-based highway tunnel seismic fortification goals and standards are put forward and compared with the existing standards considering the current economic and technical conditions in China. The results show that the plastic seismic design against the effects of an E2 earthquake is explicitly defined by the“twolevel seismic fortification and two-stage seismic design”given in this paper, which is extremely important for immersed tunnels, shield tunnels and open-cut tunnels and complements the existing specifications and standards.
2016, Vol. 53 