نتایج جستجو برای: far field earthquake records
تعداد نتایج: 1106990 فیلتر نتایج به سال:
One of the most successful means of protecting structures against severe seismic events is base isolation. However, optimal design of base isolation systems depends on the magnitude of the design level earthquake that is considered. The features of an isolation system designed for an El Centro-type earthquake typically will not be optimal for a Northridge-type earthquake and vice versa. To be e...
The Landers earthquake, which had a moment magnitude (M(w)) of 7.3, was the largest earthquake to strike the contiguous United States in 40 years. This earthquake resulted from the rupture of five major and many minor right-lateral faults near the southern end of the eastern California shear zone, just north of the San Andreas fault. Its M(w) 6.1 preshock and M(w) 6.2 aftershock had their own a...
Abstract Aquifer hydraulic parameter can change during earthquakes. Continuous monitoring of the response water level to seismic waves or solid Earth tides provides an opportunity document how earthquakes influence hydrological properties. Here, we use data two groundwater wells, Dian-22 (D22) and Lijiang (LJ) well, in southeast Tibet Plateau 2015 Mw 7.8 Gorkha earthquake illustrate implication...
Seismic isolation is a method to reduce the destructive effects of earthquakes on a structure in which the structure is separated from its foundation by devices called seismic isolators. As a result, the horizontal movements of the earthquake transmitted to the structure are reduced. The seismic isolation is used for both newly constructed structures as well as for retrofitting the existing bui...
A method is presented for determining the local magnitude, NIL, from records from seismoscopes and similar instruments. The technique extrapolates the maximum response of the standard Wood-Anderson seismograph, which determines ML, from the maximum response of the seismoscope. The standard deviation of the steady-state response of an oscillator subjected to white noise excitation is used to der...
A hybrid slip model combined an Asperity model and k model for predicting near-field strong ground motion is proposed in this paper. Firstly, the asperity model charactering lower wave number of slip distribution is estimated based on works of Wang (2004), Wang and Tao (2004a, b). Secondly, k square slip model charactering higher wave number of slip distribution was determined based on research...
This report reviews the soil-structure interaction (SSI) researches relating to three major earthquakes recently occurred in Japan, which include the 1993 Kushiro-oki earthquake, aftershocks of the 1993 Hokkaido-Nansei-oki earthquake and the 1995 Hyogo-ken Nanbu earthquake. The review work is focussed on the simulation analyses conducted on the basis of simultaneous earthquake records observed ...
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