NEHRP Clearinghouse

Title
Aseismic Design of Underground Structures.
File
PB85235968.pdf
Author(s)
St. John, C. M.; Zahrah, T. F.
Source
National Science Foundation, Washington, DC., June 1985, 138 p.
Identifying Number(s)
AA-R-8411-5616
Abstract
This study defines the basis for the aseismic design of subsurface excavations and underground structures. It includes a definition of the seismic environment and earthquake hazard, and a review of the analytical and empirical tools that are available to the designer concerned with the performance of underground structures subjected to seismic loads. Particular attention is devoted to development of simplified models that appear to be applicable in many practical cases.
Keywords
Seismic waves; Earthquake engineering; Earthquake resistant structures; Loads (Forces); Structural design; Tunnels; Excavations; Subsurface structures; Mathematical models; Dynamic structural analysis