Journal of Earthquake and Tsunami最新文献_第10页

Seismicity of East Anatolian of Turkey and Failures of Infill Walls Induced by Major Earthquakes 土耳其东安纳托利亚地区地震活动性与大地震引起的填充墙破坏

IF 1.5 4区工程技术

Journal of Earthquake and Tsunami Pub Date : 2021-03-13 DOI: 10.1142/S1793431121500172

A. Dogangun, Burak Yön, O. Onat, M. E. Öncü, Serkan Sagiroglu

引用次数: 8

Framework to Evaluate Seismic Fragility of Bridges Considering Component Damage Correlations 考虑构件损伤相关性的桥梁地震易损性评估框架

IF 1.5 4区工程技术

Journal of Earthquake and Tsunami Pub Date : 2021-03-13 DOI: 10.1142/s1793431121500226

Ji-Su Kim, Woo-Seong Park, T. Han

引用次数: 1

Quantitative Evaluation of the Seismic Reinforcement Effect Based on Observed Microtremors 基于微震观测的抗震加固效果定量评价

IF 1.5 4区工程技术

Journal of Earthquake and Tsunami Pub Date : 2021-03-13 DOI: 10.1142/s1793431121500214

Baoyintu, H. Kawase

{"title":"Quantitative Evaluation of the Seismic Reinforcement Effect Based on Observed Microtremors","authors":"Baoyintu, H. Kawase","doi":"10.1142/s1793431121500214","DOIUrl":"https://doi.org/10.1142/s1793431121500214","url":null,"abstract":"To validate the seismic retrofitting of buildings quantitatively, we observed microtremors in the Uji campus buildings at Kyoto University. We compared the dynamic characteristics derived from the resonant frequency of microtremors in a five-story steel-frame structure and a three-story reinforced-concrete (RC) building before and after retrofitting. We calculated the weight of the building from the retrofitting design plan and constructed a numerical model of the structure by estimating the building stiffness that fits the resonant frequency. Assuming the characteristics of the restoring force for each story of the numerical model from previous studies, we calculated the non-linear response of the building to the strong motions predicted for earthquakes occurring at the Obaku fault system that runs right in front of the Uji campus. We compared the response of the numerical models constructed before and after retrofitting to verify the effects of the seismic retrofitting. We found that the proposed method of dynamic response model construction using microtremor observations is effective when the reinforcement members are rigidly fixed to the existing structure, as is the case for RC buildings.","PeriodicalId":50213,"journal":{"name":"Journal of Earthquake and Tsunami","volume":"8 1","pages":"2150021"},"PeriodicalIF":1.5,"publicationDate":"2021-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88792544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Voices from the Past 过去的声音

IF 1.5 4区工程技术

Journal of Earthquake and Tsunami Pub Date : 2021-03-01 DOI: 10.1093/OSO/9780197546123.003.0004

James Goff, W. Dudley

引用次数: 0

Strange, But True 奇怪但真实

IF 1.5 4区工程技术

Journal of Earthquake and Tsunami Pub Date : 2021-03-01 DOI: 10.1093/OSO/9780197546123.003.0010

James Goff, W. Dudley

引用次数: 0

Finite Element Modeling (FEM) vs. Simplified Force-Based Methods for Rigid Retaining Walls Under Earthquake Excitation 地震作用下刚性挡土墙的有限元模型与简化的基于力的方法

IF 1.5 4区工程技术

Journal of Earthquake and Tsunami Pub Date : 2021-02-27 DOI: 10.1142/s1793431121500202

V. R. Annapareddy, A. Pain

引用次数: 5

A Comparative Study of Seismic Performance of Steel Framed Buildings with Varied Plan-Asymmetric Properties 不同平面非对称钢框架结构抗震性能比较研究

IF 1.5 4区工程技术

Journal of Earthquake and Tsunami Pub Date : 2021-02-27 DOI: 10.1142/s1793431121500160

Jui‐Liang Lin, Te-Kuang Chow, Chao‐Hsien Li, Y. Yeh

{"title":"A Comparative Study of Seismic Performance of Steel Framed Buildings with Varied Plan-Asymmetric Properties","authors":"Jui‐Liang Lin, Te-Kuang Chow, Chao‐Hsien Li, Y. Yeh","doi":"10.1142/s1793431121500160","DOIUrl":"https://doi.org/10.1142/s1793431121500160","url":null,"abstract":"This study looks at the influence of plan-asymmetric properties on seismic performance of steel framed buildings by means of a comparative study. The seismic fragility curves of a symmetrical nine-story steel framed building and three asymmetric-plan buildings, which are the variations of the mentioned symmetrical building, are constructed through incremental dynamic analysis (IDA). The three asymmetric-plan buildings are torsionally stiff (TS), torsionally similarly stiff (TSS), and torsionally flexible (TF) buildings, respectively. The considered plan-asymmetric properties are eccentricity ratio and uncoupled frequency ratio. A comparative study of three damage states (DS) including immediate occupancy (IO), collapse prevention (CP), and global instability (GI) of the four buildings is conducted. The results show that in terms of slight damage, both the symmetrical building and the TSS building perform better. In terms of severe damage and collapse, the symmetrical building obviously outperforms the other three asymmetric-plan buildings. In addition, the TF building always performs the worst regardless of the DSs.","PeriodicalId":50213,"journal":{"name":"Journal of Earthquake and Tsunami","volume":"113 1","pages":"2150016"},"PeriodicalIF":1.5,"publicationDate":"2021-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77247436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Performance Evaluation of Reinforced Concrete Buildings During the Sivrice-Elazığ Earthquake (Mw=6.8, January 24, 2020) in Accordance with Turkish Earthquake Code 根据土耳其地震规范对2020年1月24日Sivrice-Elazığ地震(Mw=6.8)中钢筋混凝土建筑的性能评价

IF 1.5 4区工程技术

Journal of Earthquake and Tsunami Pub Date : 2021-02-27 DOI: 10.1142/S1793431121500184

S. Demir, M. Günaydın, Barbaros Atmaca, A. Altunışık, M. Hüsem, S. Adanur, Zekai Angın, Ş. Ateş

引用次数: 4

Seismic Behavior of Unconnected Piles–Caisson Foundation Using Slow Cyclic Tests 非连体桩-沉箱基础慢循环试验抗震性能研究

IF 1.5 4区工程技术

Journal of Earthquake and Tsunami Pub Date : 2021-02-16 DOI: 10.1142/S179343112150024X

Lu Yang, Feng Shengming, Gong Wei-ming, Dai Guo-liang, Zhao Xueliang

{"title":"Seismic Behavior of Unconnected Piles–Caisson Foundation Using Slow Cyclic Tests","authors":"Lu Yang, Feng Shengming, Gong Wei-ming, Dai Guo-liang, Zhao Xueliang","doi":"10.1142/S179343112150024X","DOIUrl":"https://doi.org/10.1142/S179343112150024X","url":null,"abstract":"The unconnected piles–caisson foundation (UPCF) consists of gravity caisson, mattress, and pile group. This foundation has been an attractive design for the mattress as it can reduce the seismic loads applied on the superstructure. However, a lack of understanding regarding its seismic behavior has hindered the application of this type of foundation. This paper reports on a series of slow cyclic tests (SCTs) conducted to investigate the seismic behavior of the UPCF. Six tests were conducted on model foundations on dry sand with the variables of mattress material, mattress thickness, vertical safety factor, and ground improvement. The experimental schemes, including the model design, the instrumentation, and the loading scheme, are illustrated in detail. The test results show that a large amount of energy was dissipated through the mattress during dynamic loading. With increasing loading displacement, the shear stiffness of these models decreased to a stable value. An empirical equation for the stiffness and loading displacement is developed. Below a drift ratio of 0.6%, there is no evident difference in the dynamic behavior of the foundation. After that, the aseismic behavior of the foundation depends on the mattress material, the mattress thickness, and the vertical pressure and is affected by the earthquake intensity and frequency.","PeriodicalId":50213,"journal":{"name":"Journal of Earthquake and Tsunami","volume":"63 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74319893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Seismicity Simulation and a Forecast Model Based on Monte Carlo Simulation Techniques and Performance of Distribution Models 基于蒙特卡罗模拟技术和分布模型性能的地震活动性模拟和预测模型

IF 1.5 4区工程技术

Journal of Earthquake and Tsunami Pub Date : 2021-02-16 DOI: 10.1142/S1793431121500251

H. Karaca

{"title":"Seismicity Simulation and a Forecast Model Based on Monte Carlo Simulation Techniques and Performance of Distribution Models","authors":"H. Karaca","doi":"10.1142/S1793431121500251","DOIUrl":"https://doi.org/10.1142/S1793431121500251","url":null,"abstract":"In seismic hazard studies, simulation techniques are exploited relatively less compared to other statistical methods. The main purposes of their use were merely scientific: either to reduce uncertainty in seismic hazard or to test the consistency of a forecast. Its limited exploitation in the field does not mean that the method could not be exploited further. Given sufficient data and with the right models, a full-scale simulation is possible, which in fact becomes a forecast with future timing, location and magnitude of future events are simulated. Within this context, the main purpose of this study is to layout a method to create a full scale simulation with all the parameters namely the time, location and magnitude of an earthquake is simulated. For that purpose, in addition to the main parameters defining past seismic patterns, namely the temporal, spatial, magnitude distributions, the combined spatio-magnitude distribution is also modeled. As another improvement compared to the current procedures, occurrence date is assigned to the simulated event according to the inter-event time distribution, which enhances the simulation procedure. The eventual temporal distribution and the associated earthquake rates are checked with the original earthquake rate for its consistency. In the end, a simulation procedure, which can also be used as a forecast model is developed to improve the existing procedures further.","PeriodicalId":50213,"journal":{"name":"Journal of Earthquake and Tsunami","volume":"38 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2021-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84043638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0