STATE-OF-THE-ART IN FAILURE MECHANISM AND DAMAGE CONTROL OF LARGE-SCALE URBAN UNDERGROUND BUILDINGS IN CHINA

The large-scale construction of underground structures prompts researchers and engineers to reconsider seismic safety of existing and new underground structures against future strong earthquakes. This paper attempts to assess the current state-of-the-art in experimental and analytical researches on large-scale urban underground buildings. Three key issues, which need to be urgently resolved in numerical computation, are also discussed. Finally, necessity and applicability of damage control techniques are explored. The techniques, which are proved to be effective in surface buildings, are expected to update seismic performances of underground structures.