@ ŒfÚŽGŽi˜ajF “ú–{’nkHŠwƒVƒ“ƒ|ƒWƒEƒ€˜_•¶W VolF 8-1Šª ”NF 1990”N •ÅF 313-318•Å ’˜ŽÒi˜ajF - ƒ^ƒCƒgƒ‹i˜ajF - ´˜^i˜ajF
- ƒL[ƒ[ƒhi˜ajF - ŒfÚŽGŽi‰pjF PROCEEDINGS OF THE JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM ’˜ŽÒi‰pjF Ken-ichi TOKIDA, Keiichi TAMURA, Koh AIZAWA ƒ^ƒCƒgƒ‹i‰pjF ATTENUATION CHARACTERISTICS OF GROUND STRAINS DURING EARTHQUAKE BASED ON DENSE ARRAY ´˜^i‰pjF
The appropriate estimation of ground strains induced during earthquake is indispensable for the seismic design of buried lifeline facilities such as pipeline systems. The ground strains induced during earthquake are calculated with use of the dense instrument array data obtained at the Public Works Research Institute during past 78 earthquakes. The empirical formulae of attenuation of the maximum ground strains indused during earthquake are proposed in terms of earthquake magnitude and epicentral distance. ƒL[ƒ[ƒhi‰pjF - ‹LŽ–‹æ•ªF - ‹æ•ª @@@ˆÏˆõ‰ï˜_•¶W