000019086 001__ 19086
000019086 005__ 20170118182258.0
000019086 04107 $$aeng
000019086 046__ $$k2017-01-09
000019086 100__ $$aHikima, Kazuhito
000019086 24500 $$aStructural Response Due To Supershear and Subshear Rupture Based on Dynamic Rupture Model

000019086 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019086 260__ $$b
000019086 506__ $$arestricted
000019086 520__ $$2eng$$aIn estimation of a seismic capacity of a building, it is important to consider various patterns of external forces that can be generated from a rupture of a seismic fault. Currently, kinematic rupture models assuming fault rupture pattern a priori are widely used for numerical predictions of strong motion. However, some studies have used dynamic rupture models based on the friction laws. It is generally assumed in the kinematic rupture models that a rupture velocity is less than the S-wave velocity in the rupture process, which is called “subshear rupture.” However, in some cases, the rupture velocity is faster than the S-wave velocity, which is called “supershear rupture.” The dynamic rupture model can express supershear rupture as a consequence of spontaneous rupture based on physically consistent models, without arbitrary assumption of rupturing process including spatial velocity and slip time function. From the structural engineer's point of view, it is important to consider the response of buildings to pulse-like waves accompanied by supershear rupture to predict the building damage and to estimate seismic performance in all possible scenarios. In this paper, we calculate dynamic ruptures by varying parameters, and present a detailed discussion of ground motion characteristics under various parameters, focusing on the slip-weakening law, the fault length, and the depth of the initial crack. The investigated rupture patterns include subshear rupture, supershear rupture, and the transition from subshear rupture to supershear one. In addition, the impact to a building of applying ground motions caused by supershear rupture to a building is discussed.

000019086 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019086 653__ $$aSupershear rupture, Subshear rupture, Dynamic rupture model, Pulse-like ground motion

000019086 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019086 720__ $$aHikima, Kazuhito$$iOhtsuka, Yasuhiro$$iUetake, Tomiichi$$iKato, Kenichi$$iHashimoto, Takuma$$iNagano, Masayuki
000019086 8560_ $$ffischerc@itam.cas.cz
000019086 8564_ $$s1928373$$uhttps://invenio.itam.cas.cz/record/19086/files/2816.pdf$$yOriginal version of the author's contribution as presented on USB, paper 2816.
000019086 962__ $$r16048
000019086 980__ $$aPAPER