2005年8月
A kinematic source-time function compatible with earthquake dynamics
BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA
- ,
- ,
- ,
- 巻
- 95
- 号
- 4
- 開始ページ
- 1211
- 終了ページ
- 1223
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1785/0120040177
- 出版者・発行元
- SEISMOLOGICAL SOC AMER
We propose a new source-time function, to be used in kinematic modeling of ground-motion time histories, which is consistent with dynamic propagation of earthquake ruptures and makes feasible the dynamic interpretation of kinematic slip models. This function is derived from a source-time function first proposed by Yoffe (1951), which yields a traction evolution showing a slip-weakening behavior. In order to remove its singularity, we apply a convolution with a triangular function and obtain a regularized source-time function called the regularized Yoffe function. We propose a parameterization of this slip-velocity time function through the final slip, its duration, and the duration of the positive slip acceleration (T-acc). Using this analytical function, we examined the relation between kinematic parameters, such as peak slip velocity and slip duration, and dynamic parameters, such as slip-weakening distance and breakdown-stress drop. The obtained scaling relations are consistent with those proposed by Ohnaka and Yamashita (1989) from laboratory experiments. This shows that the proposed source-time function suitably represents dynamic rupture propagation with finite slip-weakening distances.
- リンク情報
-
- DOI
- https://doi.org/10.1785/0120040177
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000231588300001&DestApp=WOS_CPL
- URL
- http://www.scopus.com/inward/record.url?eid=2-s2.0-24944465366&partnerID=MN8TOARS
- URL
- http://orcid.org/0000-0002-9405-9155
- ID情報
-
- DOI : 10.1785/0120040177
- ISSN : 0037-1106
- eISSN : 1943-3573
- ORCIDのPut Code : 33098851
- SCOPUS ID : 24944465366
- Web of Science ID : WOS:000231588300001