发布求助
文献互助 智能选刊 最新文献

Volume 8: Seismic Engineering最新文献

筛选
英文 中文
Seismic Test Results of Air-Operated Valve Actuators for Nuclear Power Plants (Air-Operated Butterfly Valve (Direct-Coupled Type)) 核电站气动阀门执行机构(气动蝶阀(直接耦合型))抗震试验结果
Volume 8: Seismic Engineering Pub Date : 2019-11-15 DOI: 10.1115/pvp2019-93194
Yoshinao Matsubara, Y. Tsutsumi, K. Nishino, N. Kojima, Yasuyuki Ito, R. Kubota, S. Suzuki
{"title":"Seismic Test Results of Air-Operated Valve Actuators for Nuclear Power Plants (Air-Operated Butterfly Valve (Direct-Coupled Type))","authors":"Yoshinao Matsubara, Y. Tsutsumi, K. Nishino, N. Kojima, Yasuyuki Ito, R. Kubota, S. Suzuki","doi":"10.1115/pvp2019-93194","DOIUrl":"https://doi.org/10.1115/pvp2019-93194","url":null,"abstract":"\u0000 The functional requirements of air-operated valves provided in nuclear power plants during an earthquake have been previously evaluated via seismic tests and so forth; however, since the response acceleration has increased in line with a recent reassessment of standard earthquake ground motions, it is necessary to evaluate functional maintenance with respect to high acceleration. It is also necessary to determine practical functionality from the viewpoint of equipment fragility in seismic Probability Risk Assessment (PRA) Here, we used a resonant shaking table (see Ref. [1]) in the Central Research Institute of the Electric Power Industry (CRIEPI), which is capable of seismic tests at acceleration levels that have been unachievable until now. From the results of seismic tests on air-operated valve actuators, the operability of active components used with an existing design was confirmed to be more than 15 × 9.8 m/s2 (horizontal directions (X and Y)) and more than 20 × 9.8 m/s2 (vertical direction (Z)).","PeriodicalId":180537,"journal":{"name":"Volume 8: Seismic Engineering","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128605257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Seismic Test Results of Air-Operated Valve Actuators for Nuclear Power Plants (Air-Operated Globe Valve (Cylinder Type)) 核电站气动阀门执行机构地震试验结果(气动截止阀(筒型))
Volume 8: Seismic Engineering Pub Date : 2019-11-15 DOI: 10.1115/pvp2019-93485
R. Kubota, Y. Tsutsumi, Yoshinao Matsubara, S. Suzuki, S. Kumagai
{"title":"Seismic Test Results of Air-Operated Valve Actuators for Nuclear Power Plants (Air-Operated Globe Valve (Cylinder Type))","authors":"R. Kubota, Y. Tsutsumi, Yoshinao Matsubara, S. Suzuki, S. Kumagai","doi":"10.1115/pvp2019-93485","DOIUrl":"https://doi.org/10.1115/pvp2019-93485","url":null,"abstract":"\u0000 It is believed that air-operated globe valves are able to operate during and after earthquakes, leading to maximum accelerations beyond the existing allowable acceleration for nuclear power plants in Japan (6 × 9.8 m/s2). In this work, this assumption is verified using a resonance shaking table for seismic testing at acceleration levels of 20 × 9.8 m/s2 (see Ref. [1]). Results show that the active components used in existing air-operated globe valve designs remain operable at 22 × 9.8 m/s2 (horizontal (X and Y) and vertical (Z) directions).","PeriodicalId":180537,"journal":{"name":"Volume 8: Seismic Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128576442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Seismic Evaluation Method of Piping Systems by Inelastic Response Spectrum Analysis: Part 1 — Response Analysis 通过非弹性响应谱分析对管道系统进行地震评估的方法：第 1 部分 - 响应分析
Volume 8: Seismic Engineering Pub Date : 2019-11-15 DOI: 10.1115/pvp2019-93898
I. Tamura, M. Sakai, S. Matsuura, Ryuya Shimazu, Hiroaki Tamashiro, Soichi Mabuchi
{"title":"Seismic Evaluation Method of Piping Systems by Inelastic Response Spectrum Analysis: Part 1 — Response Analysis","authors":"I. Tamura, M. Sakai, S. Matsuura, Ryuya Shimazu, Hiroaki Tamashiro, Soichi Mabuchi","doi":"10.1115/pvp2019-93898","DOIUrl":"https://doi.org/10.1115/pvp2019-93898","url":null,"abstract":"\u0000 An inelastic response-spectrum-analysis method for multi-degree-of-freedom systems was proposed. The method has lower analysis loads and good outlook given by the inelastic response spectrum like the elastic response-spectrum-analysis method, and is not an equivalent-linearization method. We propose a seismic evaluation method of piping systems to conduct seismic design using the inelastic response-spectrum-analysis. In this paper, the inelastic analysis method of piping systems for the seismic evaluation method is proposed and applied to a benchmark analysis problem of a piping system vibration test. The analysis result is compared with the vibration test result of the piping system. They are consistent and applicability of the analysis to the piping system was confirmed.","PeriodicalId":180537,"journal":{"name":"Volume 8: Seismic Engineering","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126183217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Fatigue Evaluation Method for Piping System Based on Total Input Energy and One-Cycle Momentary Input Energy 基于总输入能量和单周期瞬时输入能量的管道系统疲劳评价方法
Volume 8: Seismic Engineering Pub Date : 2019-11-15 DOI: 10.1115/pvp2019-93631
M. Sakai, I. Tamura, S. Matsuura, Ryuya Shimazu, Yohei Ono, Yutaka Hagiwara
{"title":"Fatigue Evaluation Method for Piping System Based on Total Input Energy and One-Cycle Momentary Input Energy","authors":"M. Sakai, I. Tamura, S. Matsuura, Ryuya Shimazu, Yohei Ono, Yutaka Hagiwara","doi":"10.1115/pvp2019-93631","DOIUrl":"https://doi.org/10.1115/pvp2019-93631","url":null,"abstract":"\u0000 In this study, the fatigue damage evaluation of seismic loadings was proposed and applied to an elbow of a three-dimensional simple piping system. The energy evaluation method was employed, focusing on energy balance of the total input energy and energy absorption of the piping system. Moreover, the concept of one-cycle momentary input energy was used for counting the loading cycle. Fatigue damage evaluation of the piping system was performed according to the maximum response of the elbow from the experimental results. The fatigue evaluation results were compared with the shaking test results of the piping system. Moreover, they were determined to be within the factor of 2 range, and were demonstrated to be applicable.","PeriodicalId":180537,"journal":{"name":"Volume 8: Seismic Engineering","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125701950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Overview of Current Practice for Analysis and Design of Independent Spent Fuel Storage Installation Pads 独立乏燃料贮存装置垫块分析与设计现状综述
Volume 8: Seismic Engineering Pub Date : 2019-11-15 DOI: 10.1115/pvp2019-93666
Gunup Kwon, Khaled J. Ata
{"title":"Overview of Current Practice for Analysis and Design of Independent Spent Fuel Storage Installation Pads","authors":"Gunup Kwon, Khaled J. Ata","doi":"10.1115/pvp2019-93666","DOIUrl":"https://doi.org/10.1115/pvp2019-93666","url":null,"abstract":"\u0000 Nuclear power plant spent fuels are initially stored in the spent fuel pool. Then, the water cooled fuels are transferred in a concrete or steel cask and transported outside of the Fuel Handling Building (FHB) or the Reactor Building (RB) for long term on site storage. The spent fuel casks are typically stored on a slab-on-grade pad. The slab-on-grade pad is designed according to the U.S. Nuclear Regulatory Commission NUREG-1536 and NUREG-1567. The two Standard Review Plans provide guidance to the regulators for the review of cask storage system license application. The ISFSI pad analysis and design have to consider various loading conditions, such as earthquake and tornado loadings as well as normal operating loading conditions. Seismic analysis of the ISFSI pad requires considering interaction between the pad and the supporting soil. Various cask loading configurations on the pad also have to be considered. Due to the lack of specific guidelines, many ISFSI pad designs show overly conservative reinforcement. This study provides guidelines and procedure for the design of the ISFSI pad that are typically used in the nuclear industry. It is considered that the guidelines and practices described in this study help design engineers understand general guidance provided in the NRC Standard Review Plans.","PeriodicalId":180537,"journal":{"name":"Volume 8: Seismic Engineering","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129665833","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Assessment of Free Standing Body in Dry and Submerged Condition and Under Seismic Loading 干沉条件下独立体地震荷载评价
Volume 8: Seismic Engineering Pub Date : 2019-11-15 DOI: 10.1115/pvp2019-93741
B. Rovagnati, P. Hoang
{"title":"Assessment of Free Standing Body in Dry and Submerged Condition and Under Seismic Loading","authors":"B. Rovagnati, P. Hoang","doi":"10.1115/pvp2019-93741","DOIUrl":"https://doi.org/10.1115/pvp2019-93741","url":null,"abstract":"\u0000 A free standing, slender body may experience rocking motion followed by overturning when it is subject to strong seismic motions. When the free body is submerged in water, it will also be subject to lateral forces acting along the side of the free body as a result of water sloshing. This highly non-linear situation is of particular interest to engineers in the nuclear industry in need to assess the stability of transfer casks containing spent fuel and submerged in a confined pit or pool. In this work, a three-dimensional finite element dynamic transient model of a free standing cask is developed and analyzed using ANSYS. Both dry and submerged conditions are considered. Cask to floor friction, buoyancy force, and sloshing are accounted for in the assessment. The model is validated against well-accepted contributions on sloshing and rocking provided by G.W. Housner.","PeriodicalId":180537,"journal":{"name":"Volume 8: Seismic Engineering","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125241858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Numerical Investigation on Strength of Tee Pipes Under In-Plane/Out-of-Plane Cyclic Loading 面内/面外循环荷载作用下三通管强度数值研究
Volume 8: Seismic Engineering Pub Date : 2019-11-15 DOI: 10.1115/pvp2019-93559
Izumi Nakamura
{"title":"Numerical Investigation on Strength of Tee Pipes Under In-Plane/Out-of-Plane Cyclic Loading","authors":"Izumi Nakamura","doi":"10.1115/pvp2019-93559","DOIUrl":"https://doi.org/10.1115/pvp2019-93559","url":null,"abstract":"\u0000 It is known that the expected failure mode of piping systems under excessive seismic motion would be the fatigue failure at elbows or tees. Although there are a lot of experimental and analytical investigations on the strength and the failure behavior of elbows under seismic loading, there are a few studies on tee pipe joints particularly in the inelastic range. To clarify the characteristics of the strength of tee pipes under elastic-plastic region, investigations by FEM analysis were conducted. In this analytical investigation, steel butt-welding type tee pipe joints were considered. Two kinds of parameters were considered; 1) the loading direction (in-plane bending / out-of-plane bending), 2) the branch size (equal tee / unequal tee).\u0000 From the analytical examination, the load-displacement relationship and the distribution of the accumulated plastic strain concentration position were obtained. The difference of the strength in the loading direction and the expected failure locations depending on the branch pipe size and the loading direction are discussed.","PeriodicalId":180537,"journal":{"name":"Volume 8: Seismic Engineering","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121915654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Retrofitting Non-Ductile RC Frames for Seismic Resistance Using Post-Installed Shear Walls 采用后安装剪力墙对非延性钢筋混凝土框架进行抗震加固
Volume 8: Seismic Engineering Pub Date : 2019-11-15 DOI: 10.1115/pvp2019-93399
C. Chiu, F. Hsiao, W. Liao, Samuel Jonathan Quacoo, Chin-En Ho, Zi-En Gu
{"title":"Retrofitting Non-Ductile RC Frames for Seismic Resistance Using Post-Installed Shear Walls","authors":"C. Chiu, F. Hsiao, W. Liao, Samuel Jonathan Quacoo, Chin-En Ho, Zi-En Gu","doi":"10.1115/pvp2019-93399","DOIUrl":"https://doi.org/10.1115/pvp2019-93399","url":null,"abstract":"\u0000 Reinforced Concrete (RC) frame structures that were designed and built according to older standards can be damaged during destructive earthquakes as a result of insufficient lateral strength and/or deformation capacity. Such structures must be retrofitted to satisfy the current requirements and to survive future earthquakes. Owing to its high lateral strength and stiffness capacity of an RC wall, the post-installation of an RC wall in a non-ductile frame for retrofit is a widely used retrofitting technique. However, for frame structures with low-strength concrete, the typically used connected construction method on the interface between existing and new concrete may be not able to provide effective force transfer, and may cause unexpected brittle failure in the retrofitted structure. Such unexpected brittle failure may reduce the seismic capacity of the structure and threaten its safety. Therefore, in this experimental investigation, two retrofitting methods that use a post-installed RC wall are proposed to improve the load transfer mechanism on the interface. The first involves a wall with diagonal rebar and boundary spirals, and the second involves a wall with an additional inner frame. A typical traditional retrofitting specimen was constructed and tested for comparison. Reversed cyclic loading is used to test the seismic capacity of the specimens. Finally, post-embedded piezoceramic-based sensors were used to monitor the structural health and detect damage in one of specimens during the test. The experimental results demonstrate the effectiveness of the piezoceramic-based approach to structural health monitoring and the ability of the method to detect damage in shear governed RC structures under seismic loading.","PeriodicalId":180537,"journal":{"name":"Volume 8: Seismic Engineering","volume":"154 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123561713","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Optimal Design of Tuned Mass Dampers With Variable Inerter and Damping 可变惯性和阻尼调谐质量阻尼器的优化设计
Volume 8: Seismic Engineering Pub Date : 2019-11-15 DOI: 10.1115/pvp2019-93966
Chang‐Ching Chang, Jer-Fu Wang, Chi‐Chang Lin, Tzu-Ting Lin, Chih‐Shiuan Lin
{"title":"Optimal Design of Tuned Mass Dampers With Variable Inerter and Damping","authors":"Chang‐Ching Chang, Jer-Fu Wang, Chi‐Chang Lin, Tzu-Ting Lin, Chih‐Shiuan Lin","doi":"10.1115/pvp2019-93966","DOIUrl":"https://doi.org/10.1115/pvp2019-93966","url":null,"abstract":"\u0000 Conventional tuned mass damper (TMD) is a popular and generally accepted vibration control device in the field of passive structural control. However, it was found that the control efficacy of a conventional TMD may significantly degrade when the TMD’s frequency does not tune to its desired value. In addition, the vibration energy of controlled structure transferred into the TMD is dissipated by viscous or friction damper and becomes waste heat. In this paper, a new type of TMD, called electromagnetic TMD inerter (EM-TMDI) is developed by replacing the viscous dampers with electromagnetic rotary transducers so that a more flexible viscous damping can be achieved and part of the energy originally dissipated by the dampers could be harvested. A flywheel with variable mass moment of inertia will be introduced into the transmission system of the TMD to adjust TMD’s frequency to mitigate the frequency detuning effect and to enhance the control efficacy of TMD system. The theoretical derivation is performed to generate the relationship between the DC motor and the transmission system of the EM-TMDI. Optimal design method considering the inerter of rotary transducers will be developed. This study first designed and manufactured a scale-down, double-deck EM-TMDI. A series of shaking table tests were conducted at NCREE Tainan laboratory to verify the capability of inerter to change TMD’s frequency.","PeriodicalId":180537,"journal":{"name":"Volume 8: Seismic Engineering","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133410753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Buckling and Fatigue Evaluation of Braced Piping Support by Numerical Analysis 用数值分析方法评价支撑管道支架的屈曲和疲劳
Volume 8: Seismic Engineering Pub Date : 2019-11-15 DOI: 10.1115/pvp2019-93830
Ryuya Shimazu, M. Sakai
{"title":"Buckling and Fatigue Evaluation of Braced Piping Support by Numerical Analysis","authors":"Ryuya Shimazu, M. Sakai","doi":"10.1115/pvp2019-93830","DOIUrl":"https://doi.org/10.1115/pvp2019-93830","url":null,"abstract":"\u0000 Buckling and fatigue evaluation of braced piping supports was conducted using numerical analysis. Buckling and fatigue occurred on the piping support during vibration and static load tests. A numerical model for the evaluation was developed, and the load–displacement relationship and local strain obtained by the numerical analysis were in good agreement with experimental results. Thus, the numerical model was validated. Buckling and fatigue evaluations were subsequently conducted using the model. In the buckling evaluation, the experimental buckling load was in good agreement with that obtained by Johnson’s formula. Fatigue evaluation was conducted to investigate whether fatigue crack had occurred before the rupture on the piping support. The linear cumulative damage was calculated, suggesting the possibility of fatigue crack formation. Ductile rupture was considered to occur after the fatigue crack formation.","PeriodicalId":180537,"journal":{"name":"Volume 8: Seismic Engineering","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123952675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信