{"title":"STUDY ON ANALYSIS METHOD ON BEHAVIOR OF SEISMIC TYPE DUCTILE IRON PIPES CONSIDERED DECREASE OF GROUND STIFFNESS IN EMBANKMENT FAILURE","authors":"K. Morimoto, M. Miyajima, Masato Imagawa","doi":"10.2208/jscejseee.76.4_i_214","DOIUrl":"https://doi.org/10.2208/jscejseee.76.4_i_214","url":null,"abstract":"","PeriodicalId":303487,"journal":{"name":"Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125144327","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}
{"title":"A NEW IDENTIFICATION METHODOLOGY FOR INCIDENT SEISMIC WAVE AT ENGINEERING BASEMENT BASE ON DYNAMIC RESPONSE ANALYSIS IN TIME DOMAIN","authors":"Akira Suzuki, H. Sakai, Honoka Inda","doi":"10.2208/jscejseee.77.3_509","DOIUrl":"https://doi.org/10.2208/jscejseee.77.3_509","url":null,"abstract":"","PeriodicalId":303487,"journal":{"name":"Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125076428","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}
{"title":"INFLUENCES OF TYPES OF JOINTS AND PLATE THICKNESS ON A NEW BOLT-TIGHTENING METHOD IN WHICH THE FINAL TIGHTENING IS EXECUTED 24 HOURS AFTER THE TEMPORARY TIGHTENING","authors":"K. Minami, H. Yokoyama, T. Amano","doi":"10.2208/jscejseee.76.1_61","DOIUrl":"https://doi.org/10.2208/jscejseee.76.1_61","url":null,"abstract":"高力ボルト摩擦接合継手(以下,ボルト継手)を現 場で施工する場合,摩擦面処理状態に依らず,一次締 めは締付け軸力の60%とし,その直後(その日の内) に本締めを行う(以下,現行締付け法).その本締め は,設計ボルト軸力の10%増し締めとしている. 無機ジンクリッチペイント(以下,無機ジンク)を 施したボルト継手は,リラクセーションによるボルト 軸力低下が大きく,締付け1年後の軸力低下は10%を 超える場合もある.そこで,第1著者は,設計ボルト 軸力の15%増し締めで施工すれば,ボルト継手の安全 性・信頼性が向上することを示した.ただし, S10Tは所定の軸力でピンテールが破断する構造であり, より高い導入軸力での施工は困難である.そこで,一 次締めを導入軸力の80%とし,24時間後に本締め(以 下,改良締付け法)を行うことにより,リラクセーシ ョンによる軸力低下が改善され,15%増し締めと同等 な残存軸力が期待できることを示した.ただし,こ れらは,一般的な2面摩擦(複せん断)の継手を対象 としていた. 軸力低下は継手形式によっても異なる.第1著者ら は,1面摩擦(単せん断)の継手の15%増し締めの検 証を行い,1面摩擦では軸力低下は小さく,15%増し 締め施工を適用することはできることを示した.ただ し,これまで改良締付け法において,継手形式や板厚 (ボルト長)の影響については明確にしていなかった. 本研究は,改良締付け法における継手形式および板 厚の影響を明確することを目的に行った実験的研究で ある.本研究では,2面摩擦および1面摩擦の薄板・厚 板のボルト継手を用いて,リラクセーション試験,す べり耐力試験を実施した.そして,軸力低下の状態を 明確にした上で,継手形式および板厚(ボルト長)の 影響を考察し,その改善効果を明確にした.","PeriodicalId":303487,"journal":{"name":"Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115656938","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}
{"title":"SPH ANALYSIS OF PROGRESSIVE SLOPE FAILURE INDUCED BY EARTHQUAKE GROUND MOTION","authors":"Y. Ono","doi":"10.2208/jscejseee.75.i_770","DOIUrl":"https://doi.org/10.2208/jscejseee.75.i_770","url":null,"abstract":"In this study, we investigated the applicability of earthquake response analysis using Smoothed Particle Hydrodynamics (SPH) method for simulating progressive slope failures induced by earthquakes. The SPH method is a large deformation analysis method of a continuous body that utilizes the elasto-plastic constitutive model and is possible to analyze a slope failure induced by earthquake ground motion. A progressive slope failure is a form of slope collapse in which the deformation of the slope is induced only when the earthquake ground motion is in effect. In this study, we investigated the effect of the period of input seismic motion and the material strength on progressive slope failures by carrying out the earthquake response analysis of the slope models by use of the SPH method. Furthermore, by conducting small deformation analysis by SPH method, we showed that large deformation analysis by SPH method is effective in seismic response analysis for progressive slope failure.","PeriodicalId":303487,"journal":{"name":"Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114160000","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}
{"title":"STOCHASTIC CHARACTERISTIC OF SITE AMPLIFICATION FACTOR AND ITS EFFECT ON EARTHQUAKE GROUND MOTION","authors":"Y. Fukushima, T. Nagao","doi":"10.2495/RISK180051","DOIUrl":"https://doi.org/10.2495/RISK180051","url":null,"abstract":"In this study, by using simultaneous observation record at neighbouring earthquake ground motion observation stations, the variations of the site amplification factors was evaluated with IBR003 earthquake ground motion observation stations in Ibaraki prefecture. Furthermore, the earthquake ground motion considering the variation of the site amplification factors was calculated, and the relation between the variation of the site amplification factors and the variation of representative values of earthquake ground motion was discussed. As a result, the peak ground accelerations, peak ground velocities, and power spectrum intensity values of the earthquake ground motions the average site amplification factor are smaller than the of the earthquake ground motions.","PeriodicalId":303487,"journal":{"name":"Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))","volume":"807 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131826238","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}
K. Muto, S. Kainuma, Jin Du, Shaobo Liu, M. Yang, H. Miyata
{"title":"CORROSION RESISTANCE AND ANTI-CORROSION PERFORMANCE OF OVERLAPPING LAYERS BETWEEN Al-5Mg THERMAL SPRAYED COATING AND HEAVY DUTY PAINT COATING WITH A CROSS-CUT DEFECT","authors":"K. Muto, S. Kainuma, Jin Du, Shaobo Liu, M. Yang, H. Miyata","doi":"10.2208/jscejseee.75.280","DOIUrl":"https://doi.org/10.2208/jscejseee.75.280","url":null,"abstract":"","PeriodicalId":303487,"journal":{"name":"Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126074090","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}
{"title":"ANALYTICAL STUDY ON MAXIMUM TEMPERATURE ESTIMATION FOR STEEL BRIDGE SUBJECTED TO A FIRE","authors":"Kenta Ono, Y. Kitane","doi":"10.2208/jscejseee.76.1_163","DOIUrl":"https://doi.org/10.2208/jscejseee.76.1_163","url":null,"abstract":"","PeriodicalId":303487,"journal":{"name":"Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125295832","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}
{"title":"ANALYTICAL STUDY ON BEHAVIOR OF RC BOX CULVERT SUBJECTED TO FAULT DISPLACEMENT","authors":"Katsuyuki Sakashita, A. Hata","doi":"10.2208/jscejseee.75.i_73","DOIUrl":"https://doi.org/10.2208/jscejseee.75.i_73","url":null,"abstract":"In this paper, analytical studies on behavior of RC box culvert subjected to fault displacement are con-ducted. The fault is set as reverse fault which dip angle is 67.5 degree, and parametric studies about hori-zontal intersection angle of structure and fault are presented. As a result, intersection angle near to a right angle generates larger longitudinal axial forces, while it with an acute angle causes larger cross-section bending moments. In this papers condition, concrete and rebar stresses stay under their respective yield stress when fault displacement is 0.1m, and some concrete and rebar stresses reach yield stress when fault displacement is 0.2m.","PeriodicalId":303487,"journal":{"name":"Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116114426","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}
M. Terashima, G. Shoji, M. Okutsu, M. Wakatake, I. Suetomi, Hiroyuki Tsukamoto, Takanobu Suzuki
{"title":"PREVIOUS SEISMIC DAMAGE OF TELECOMMUNICATION PIPELINES IN BRIDGE SECTION","authors":"M. Terashima, G. Shoji, M. Okutsu, M. Wakatake, I. Suetomi, Hiroyuki Tsukamoto, Takanobu Suzuki","doi":"10.2208/jscejseee.75.i_170","DOIUrl":"https://doi.org/10.2208/jscejseee.75.i_170","url":null,"abstract":"","PeriodicalId":303487,"journal":{"name":"Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122330216","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}
{"title":"FUNDAMENTAL STUDY ON DEVELOPMENT OF PERFORATED BUCKLING-RESTRAINED BRACES","authors":"K. Kondo, H. Ge, Liang-jiu Jia","doi":"10.2208/jscejseee.75.i_81","DOIUrl":"https://doi.org/10.2208/jscejseee.75.i_81","url":null,"abstract":"","PeriodicalId":303487,"journal":{"name":"Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122943985","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}