Journal of Earthquake and Tsunami最新文献

{"title":"Seismic Fragility Curves of Combined Multiple Tunnel Complexes in Soft Soils","authors":"Ahsan Naseem, Muhammad Kashif, Ken Schotte, Hans De Backer","doi":"10.1142/s1793431123500264","DOIUrl":"https://doi.org/10.1142/s1793431123500264","url":null,"abstract":"Seismic fragility assessment is the probability of damage exceeding a certain design limit. The dynamic performance of a combined multiple tunnel complex is less explored and requires thorough study. This research is based on the numerical approach to evaluate the damage caused to the two new types of tunnel complexes, i.e. twin and triple tunnel complexes in a soft soil profile. A two-dimensional (2D) finite element analysis is performed to determine the induced bending moments for each of the tunnel complexes and develop the seismic fragility curves. A set of full acceleration-time histories are applied to the soil–tunnel complex system by varying embedment depths in different soft soil profiles. From the results, it is concluded that increasing the embedment ratio results in an increased probability of tunnel damage. The developed fragility curves are also inter-compared for both the tunnel complexes to evaluate the better performer during a seismic event. This study serves as an initial step toward the guidelines to determine the percentage of incurred damage and design the combined multiple tunnel complex in a seismic-prone area.","PeriodicalId":50213,"journal":{"name":"Journal of Earthquake and Tsunami","volume":"77 24","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135087350","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}

{"title":"Seismic Performance and Damage Evaluation of Reinforced Concrete Structures Based on Field Investigation Made After 6 February 2023, Kahramanmaras Earthquakes","authors":"B. Sevim, Y. Ayvaz, S. Akbulut, M. F. Aydiner, S. Uzun, A. Ari","doi":"10.1142/s179343112350032x","DOIUrl":"https://doi.org/10.1142/s179343112350032x","url":null,"abstract":"","PeriodicalId":50213,"journal":{"name":"Journal of Earthquake and Tsunami","volume":" 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135191734","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}

{"title":"Effect of initial stress and mechanical impedance boundary on Scholte's wave at micropolar solid-liquid interface","authors":"R. Lianngenga, J. Lalvohbika","doi":"10.1142/s1793431123500318","DOIUrl":"https://doi.org/10.1142/s1793431123500318","url":null,"abstract":"","PeriodicalId":50213,"journal":{"name":"Journal of Earthquake and Tsunami","volume":"40 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135868454","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}

{"title":"Unravelling Karachi’s Seismic Potential: Estimating Maximum Ground Shaking in Various Zones","authors":"Muhammad Ahmed, Sarosh Hashmat Lodi","doi":"10.1142/s1793431123500252","DOIUrl":"https://doi.org/10.1142/s1793431123500252","url":null,"abstract":"Karachi, a sprawling city spanning over 3500[Formula: see text]sq. km, exhibits significant variability in seismic hazard across its expanse. This study employs a deterministic approach for seismic hazard assessment due to the unavailability of a long-term seismic archive required for a probabilistic approach, given the city’s relatively young age. Furthermore, a novel methodology is employed in this study, utilizing all known faults within Karachi’s seismic vicinity for conducting Deterministic Seismic Hazard Assessment (DSHA). Individual hazards associated with each seismic source are estimated, enabling the determination of the most severe hazard for the development of a seismic zoning map. The resulting DSHA-based seismic hazard assessment categorizes Karachi into four seismic zones, ranging from Zone 2A to Zone 4. This paper concludes that for a vast city like Karachi, relying solely on a single fault source for DSHA does not accurately represent the realistic seismic hazard to the region.","PeriodicalId":50213,"journal":{"name":"Journal of Earthquake and Tsunami","volume":"34 29","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135765498","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}

{"title":"Field Observations and Damage Evaluation in Reinforced Concrete Buildings After the February 6th, 2023, Kahramanmaraş–Türkiye Earthquakes","authors":"Ahmet Can Altunisik, Mehmet Emin Arslan, Volkan Kahya, Banu Aslan, Tugrul Sezdirmez, Gokhan Dok, Osman Kirtel, Hakan Ozturk, Fezayil Sunca, Alihan Baltaci, Mehmet Emiroglu, Murat Gunaydin, Suleyman Adanur, Barbaros Atmaca, Tahir Akgul, Aydin Demir, Tuba Tatar, Batuhan Aykanat, Kemal Haciefendioglu, Ali Saribiyik, Muhammet Yurdakul, Yunus Emrahan Akbulut, Fatih Yesevi Okur, Furkan Sen, Ali Fuat Genc, Hasan Basri Basaga, Eren Demirkaya, Osman Gules, Murat Nas","doi":"10.1142/s1793431123500240","DOIUrl":"https://doi.org/10.1142/s1793431123500240","url":null,"abstract":"On February 6, 2023, two major earthquakes (Mw 7.7 and Mw 7.6) occurred in the province of Kahramanmaraş in southern Türkiye at 9-h intervals, causing a lot of loss of life and destruction in the region where approximately 16% of the country’s population lives. This study provides a comprehensive summary of common structural deficiencies that occurred in reinforced concrete (RC) buildings in earthquake-prone cities and proposes actionable measures systematically for future disasters. The evaluated data are based on the field observations of the authors. The main reasons for damages in RC buildings in the observation field can be classified into two categories: (1) the errors during the design stage (strong beam–weak column, short column, soft story, pounding effects, the existence of short and unconfined lap splices, insufficient transverse reinforcement, column–beam connection failures), and (2) the errors during the construction stage (poor concrete quality, unribbed reinforcing steel bar and corrosion, incorrect placement of reinforcement bars, incorrect end hook angle and length, weak gable walls, workmanship defects). Furthermore, a comparative nonlinear finite element analysis of the seismic impacts caused by the first earthquake on an existing RC building fully collapsed in the earthquake was conducted as a case study considering Türkiye Building Earthquake Code 2018 [TBEC 2018] “Türkiye Bina Deprem Yönetmeliği,” Afet ve Acil Durum Yönetimi Başkanlığı, Ankara (in Turkish)]. The validity and accuracy of the reasons for damages, which were reached by the field observations, were also proven by numerical analysis results. The importance of complying with the regulations, conducting the performance evaluations and controls of the buildings according to the renewed earthquake regulations and, if necessary, repairing–strengthening works were emphasized. The loss of life and property after the earthquakes that we experienced on February 6, 2023, which were called the “Disaster of the Century”, showed that Türkiye’s current building stock, especially those built before a certain date, is insufficient against earthquakes.","PeriodicalId":50213,"journal":{"name":"Journal of Earthquake and Tsunami","volume":"34 30","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135765497","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}

{"title":"Energy content analysis of the large 2019 Ridgecrest, California seismic sequence","authors":"Saman Yaghmaei-Sabegh","doi":"10.1142/s1793431123500306","DOIUrl":"https://doi.org/10.1142/s1793431123500306","url":null,"abstract":"","PeriodicalId":50213,"journal":{"name":"Journal of Earthquake and Tsunami","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136312456","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}

{"title":"Dynamic characteristics of seismically isolated rectangular tank-liquid-block systems implementing lead rubber bearing isolator","authors":"Jyoti Ranjan Barik, Kishore Chandra Biswal","doi":"10.1142/s1793431123500276","DOIUrl":"https://doi.org/10.1142/s1793431123500276","url":null,"abstract":"","PeriodicalId":50213,"journal":{"name":"Journal of Earthquake and Tsunami","volume":"58 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135566631","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}

{"title":"Time-varying seismic fragility analysis of ECC-RC composite bridge with high-strength steel bars","authors":"Yan Liang, Yu-Zhen Kong, Cheng-Xin Zhao, Rui-Qing Liu, Jun Luo, Ren-Hui Zhu","doi":"10.1142/s179343112350029x","DOIUrl":"https://doi.org/10.1142/s179343112350029x","url":null,"abstract":"","PeriodicalId":50213,"journal":{"name":"Journal of Earthquake and Tsunami","volume":"74 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135566818","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}

{"title":"Slosh dynamics of seismically excited chamfered bottom tank with bottom-mounted internal object","authors":"Sidhartha Sankar ROY, Kishore Chandra Biswal","doi":"10.1142/s1793431123500288","DOIUrl":"https://doi.org/10.1142/s1793431123500288","url":null,"abstract":"","PeriodicalId":50213,"journal":{"name":"Journal of Earthquake and Tsunami","volume":"26 12","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135567115","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}

{"title":"Sensitivity study of seismic amplification effect of large-scale Sichuan basin on key parameters during the great Wenchuan earthquake","authors":"Yanyan Yu, Qi-fang Liu, H. Ding","doi":"10.1142/s1793431123500239","DOIUrl":"https://doi.org/10.1142/s1793431123500239","url":null,"abstract":"","PeriodicalId":50213,"journal":{"name":"Journal of Earthquake and Tsunami","volume":"9 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2023-08-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73088877","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}