Papers - TAMURA Hiroshi
about 43-
Study on modeling of cyclic elastic-plastic constitutive law for SBHS500
KARASAWA Kaihiro, TAMURA Hiroshi, KOMURO Masato, MIYAZAKI Yasuhiro, TANAKA Kenta
Kou kouzou rombunshuu 31 ( 121 ) 121_27 - 121_42 2024.3 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japanese Society of Steel Construction Joint Work
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Evaluation for slip resistance of bolted joints including different contact surfaces with disk-type friction shims inserted
Hirao Kensho, Vy Tran Quang, Tamura Hiroshi
Journal of Structural Engineering, A 70A ( 0 ) 61 - 74 2024.3 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Society of Civil Engineers Joint Work
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Difference of induced axial force by bolted diameter in high strength boletd joints using turn-of-nut method
Minami Kuniaki, Tsutsui Kouhei, Tamura Hiroshi
Journal of Structural Engineering, A 70A ( 0 ) 639 - 646 2024.3 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Society of Civil Engineers Joint Work
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MATSUBARA Takuro, MIGITAKA Yuji, FUJINO Yozo, TAMURA Hiroshi, SIRINGORINGO Dionysius M., YABE Masaa … Show more authors
MATSUBARA Takuro, MIGITAKA Yuji, FUJINO Yozo, TAMURA Hiroshi, SIRINGORINGO Dionysius M., YABE Masaaki Hide authors
Japanese Journal of JSCE 80 ( 1 ) n/a 2024.1 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Society of Civil Engineers Joint Work
<p> Damage to light poles mounted on viaducts under Level 2 earthquake must be avoided because it could create traffic disruption that would impede the post-earthquake emergency function of transportation networks. In this study, the plastic deformability and damage morphology of light poles were investigated and confirmed in the full-scale static loading tests using actual light pole structure. Based on results of the loading tests, the limit state, and the allowable deformation of light poles were determined to ensure its function in the case of emergency on transportation roads. Excessive seismic-induced vibrations are commonly observed on light poles mounted on viaducts due to response amplification of the viaducts. Accordingly, a practical seismic design method is proposed to verify that the seismic-induced displacement does not exceed the limit state 2 using dynamic analysis of the viaduct and the light pole. Furthermore, as a case study, earthquake resistance of the light pole on an existing viaduct was examined.</p>
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BIFURCATION-THEORY-BASED-STUDY ON INITIATION PROCESS OF ULTRA-LOW-CYCLE-FATIGUE ON STEEL SURFACE
TAMURA Hiroshi, SALEEM Aleena
Japanese Journal of JSCE 79 ( 11 ) n/a 2023.11 [Reviewed]
Authorship：Lead author Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Society of Civil Engineers Joint Work
<p> On the surface of the steel material (base material) undergoing repeated plastic deformation, a group of surface cracks in which multiple cracks are lined up in stripe patterns is often seen. This group of surface cracks is considered to be the source of ultra-low cycle fatigue cracks starting from the surface of steel material and has a great influence on the ultimate behavior of steel members. This paper clarifies the basic formation mechanism of surface cracks that appear in the process of generation of ultra-low cycle fatigue cracks from the viewpoint of bifurcation theory. Specifically, based on the results of repeated loading experiments and elasto-plastic analyses under large-amplitude strain, the generation and development of plastic wrinkles, caused by the surface instability mode, are microscopically related to the spatial periodicity of surface height. And, the spatial periodicity could already occur at the time of initial yielding of steel surface.</p>
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Rusandi Noor, Hiroshi Tamura, Hiroshi Katsuchi & Wang Jiaqi
International Journal of Steel Structures 23 1500 - 1512 2023.10 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Single Work
Other Link： https://link.springer.com/article/10.1007/s13296-023-00784-6
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Saleem, A; Tamura, H; Katsuchi, H
ADVANCES IN STRUCTURAL ENGINEERING 26 ( 14 ) 2749 - 2773 2023.10 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Influence of loading frequency on ULCF life of structural steel under variable surface roughness
Aleena Saleem, Hiroshi Tamura, Hiroshi Katsuchi
ce/papers 6 ( 3-4 ) 2444 - 2450 2023.9
Language：English Publishing type：Research paper (international conference proceedings) Single Work
Other Link： https://onlinelibrary.wiley.com/doi/abs/10.1002/cepa.2338
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A study on stabilizing mechanism of flap countermeasures mitigating VIV of a box girder bridge section
Phan Duc Tam, Hiroshi Katsuchi, Wang Jiaqi, Hiroshi Tamura, Kensho Hirao
IOP Conference Series: Materials Science and Engineering 1289 ( 1 ) 1 - 15 2023.8
Language：English Publishing type：Research paper (scientific journal) Single Work
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Evaluation for slip resistance of pretensioned bolted joints with different contact faces inserted friction sims
Kawamura Ryuta, He Chang, Tamura Hiroshi
Journal of Structural Engineering, A 69A ( 0 ) 11 - 25 2023.4 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Society of Civil Engineers Joint Work
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Temperature-Based Detection of Initial Yielding Point in Loading of Tensile Specimens Made of Structural Steel
Aqsa Jamil, Hiroshi Tamura, Hiroshi Katsuchi, Jiaqi Wang
World Academy of Science, Engineering and Technology International Journal of Civil and Environmental Engineering 17 ( 2 ) 2023.2 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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Hiroshi TAMURA, Kuniaki MINAMI, Daisuke UCHIDA, Natsuki YOSHIOKA, Mitsuru MORO, Tatsuya HAMA and Ch … Show more authors
Hiroshi TAMURA, Kuniaki MINAMI, Daisuke UCHIDA, Natsuki YOSHIOKA, Mitsuru MORO, Tatsuya HAMA and Chang HE Hide authors
Journal of JSCE 78 ( 1 ) 169 - 179 2022.4 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Society of Civil Engineers Joint Work
<p> Application of different contact faces in one bolted joints might allow labor-saving and accelerated works in some cases such as protection works of existing bridges and fabrication of box girders made of weathering steel without coating.</p><p> In present study, bolted joints including different contact faces were targeted as a hybrid faying surfaces joint in which contact surface treatment for the base plates is different from corresponding that for splice plates (inorganic zinc-rich coatings), and 21 bolted joint specimens were used in bolt pretension test and slip test. This paper reports these results and compares degree of pretension loss and slip resistance in the hybrid faying surface joints with homogeneous (i.e. normal) joints. Finally, also based on previous research, the applicability and slip coefficient for designing of the hybrid faying surfaces joints are discussed.</p>
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Kuniaki MINAMI, Kouhei TSUTSUI and Hiroshi TAMURA
Journal of JSCE 78 ( 1 ) 180 - 189 2022.4 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Society of Civil Engineers Joint Work
<p> The characteristics of decrease of bolt pretension by relaxation differ depending on the type of contact surfaces. To enhance the safety of bolted joints, it is important to verify that the tension of high strength bolt is retained proper level even after relaxation. By investigating characteristics of decrease of bolt pretension by relaxation referring to past literatures about high strength bolted joints, we showed the characteristics of decrease of bolt tension by difference of contact surface type; painting, rust, rough surface, sprayed surface, and galvanization surface. In addition, this study also dealt with the effect of the initial tension of high strength bolt, the type of joint, the length of bolt, the thickness of paint.</p>
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Change in Surface Topography of Structural Steel Under Cyclic Plastic Deformation
Aleena Saleem, Hiroshi Tamura, Hiroshi Katsuchi
Proceedings of the 9th International Conference on Fracture, Fatigue and Wear 175 - 193 2022 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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Slip limit prediction of high-strength bolt joints based on local approach
Chang He, Hiroshi Tamura, Hiroshi Katsuchi, Jiaqi Wang
Proceedings of International Conference on Steel Bridge Structures and Structural Analysis 2022 [Reviewed]
Language：English Publishing type：Research paper (international conference proceedings) Joint Work
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UCHIDA Daisuke, MINAMI Kuniaki, TAMURA Hiroshi, YOSHIOKA Natsuki, MURAI Takeru
Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 78 ( 3 ) 368 - 373 2022 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Society of Civil Engineers Joint Work
<p> It is known that high strength bolted joints treated with zinc-rich paint have a characteristic of large bolt pretension loss by relaxation. Furthermore, it has been found that this type of joint causes a larger bolt pretension loss when the zinc-rich paint has a thick film thickness or when a filler plate is used. On the other hand, the effect of the mutual relationship between the film thickness and the number of contact surface on the bolt pretension loss is unknown. In this study, relaxation test and slip test of high strength bolted connection specimens were carried out with the film thickness of the zinc-rich paint and the presence of the filler plate as parameters. From these results, we discussed the initial bolt pretensions on high strength bolted joints treated with zinc-rich paint considering number of contact surface.</p>
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EXPERIMENTAL INVESTIGATION ON EFFECTS OF WIND BARRIER ON AERODYNAMIC STABILITY OF BRIDGE AND VEHICLE ON BRIDGE
WANG Jiaqi, SATO Maki, KATSUCHI Hiroshi, TAMURA Hiroshi
Wind Engineering Research 27 ( 0 ) 198 - 206 2022 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：Japan Association for Wind Engineering Joint Work
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Change in Surface Topography of Structural Steel Under Cyclic Plastic Deformation
Saleem, A; Tamura, H; Katsuchi, H
PROCEEDINGS OF THE 9TH INTERNATIONAL CONFERENCE ON FRACTURE, FATIGUE AND WEAR, FFW 2021 175 - 193 2022
Language：English Publishing type：Research paper (scientific journal) Joint Work
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A study on calibration tests for high strength bolts
Minami Kuniaki, Tamura Hiroshi, Tsutsui Kohei, Fujino Daichi, Shirahata Hiromi, Uchida Daisuke, Yos … Show more authors
Minami Kuniaki, Tamura Hiroshi, Tsutsui Kohei, Fujino Daichi, Shirahata Hiromi, Uchida Daisuke, Yoshioka Natsuki Hide authors
Journal of Structural Engineering, A 67 ( 0 ) 273 - 281 2021.4 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Society of Civil Engineers Joint Work
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高架橋上に設置された照明柱の耐震性評価
右高 裕二, 松原 拓朗, 細井 雄介, 藤野 陽三, 田村 洋, Dionysius Siringoringo, 髙橋 竜太
第23回橋梁等の耐震設計シンポジウム 論文集 2021.1
Language：Japanese Publishing type：Research paper (research society, symposium materials, etc.) Joint Work
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Analysis on health inspection results and maintenance work cost records on road bridges
Tamura Hiroshi, Wakabayashi Yukiko, Yamada Hitoshi, Katsuchi Hiroshi
Journal of Structural Engineering, A 67 ( 0 ) 464 - 478 2021
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Society of Civil Engineers Joint Work
<p>Analysis on bridge health inspection results and maintenance work cost records were conducted targeting road bridges in Kanagawa prefecture, which may provide a helpful perspective for estimation of future maintenance cost of bridges. The inspection results of 336 bridges were analyzed by type of structural members and implied tendency so that corrosion in steel girders and cracking in concrete girders and slabs progress relatively slowly but some types of concrete member deteriorations are found after escalation. The maintenance work cost record showed that total cost accumulation for repairing work of concrete bridges occurs rarely but drastically at one time. Besides, in steel bridges total cost accumulation for repairing increases slowly but steadily due to paint deterioration or corrosion.</p>
Other Link： https://ci.nii.ac.jp/naid/130008025986
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Analytical simple estimation of slip coefficient of high strength bolt joints
Chang HE, Hiroshi TAMURA, Hitoshi YAMADA, Hiroshi KATSUCHI
Proceedings of Constructional Steel 28 146 2020.11 [Reviewed]
Language：Japanese Publishing type：Research paper (research society, symposium materials, etc.) Publisher：Japanese Society of Steel Construction Joint Work
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PROPOSITION OF A BUCKLING EXPERIMENT WITH STEEL FOR EDUCATION
TAMURA Hiroshi, FURUKAWA Akira, SASAKI Eiichi, HIROSE Sohichi
Journal of Japan Society of Civil Engineers, Ser. H (Engineering Education and Practice) 76 ( 1 ) 9 - 24 2020.1
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Society of Civil Engineers Joint Work
Conducting a buckling experiment with the use of steel may provide high educational benefits in the experimental class of civil engineering course because it enables detailed observation and measurement, covering elasto-plastic buckling and offering extraordinary experience. This paper proposes a flexural buckling experiment with steel which possesses the degree of freedom as much as that of experiments for acrylic board, wood, paper and so on. This experiment also has advantages in cost and adjustability of the contents. This paper also reports the results of application of this experiment at the department of Civil and Environmental Engineering, Tokyo Institute of Technology. According to the results of the questionnaire survey, the experiment, especially the usage of steel, was highly evaluated by the students after the class.
Other Link： https://ci.nii.ac.jp/naid/130007787680
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APPLICABILITY OF PRETENSIONED BOLTED JOINTS INCLUDING DIFFERENT CONTACT FACES
TAMURA Hiroshi, MINAMI Kuniaki, YOSHIOKA Natsuki, UCHIDA Daisuke, MORO Mitsuru, HAMA Tatsuya, HIRAO … Show more authors
TAMURA Hiroshi, MINAMI Kuniaki, YOSHIOKA Natsuki, UCHIDA Daisuke, MORO Mitsuru, HAMA Tatsuya, HIRAO Kensho Hide authors
Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 76 ( 2 ) 255 - 274 2020
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Society of Civil Engineers Joint Work
<p> In frictional type pretensioned bolted joints, one specification is employed for contact faces in each joint in principle. Meanwhile, in some cases such as protection works of existing bridges and fabrication of box girders made of weathering steel without coating, introduction of usage of different contact faces in one joint might often allow labor-saving and accelerated works.</p><p> In present study, bolted joints including different contact faces are defined as a hybrid faying surfaces joint, and 33 bolted joint specimens were used in bolt pretension relaxation test and slip test. This paper reports these results and compares degree of pretension loss and slip resistance in hybrid faying surface joints with homogeneous (i.e. normal) joints. Finally, also on the basis of previous research, the applicability and slip coefficient for designing of hybrid faying surfaces joints are discussed regarding.</p>
Other Link： https://ci.nii.ac.jp/naid/130007858217
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A STUDY ON INITIAL VALUE SETTING METHOD FOR RELAXATION TESTS IN HIGH STRENGTH BOLTED JOINTS
MINAMI Kuniaki, TAMURA Hiroshi, UCHIDA Daisuke, SHIRAHATA Hiromi, YOSHIOKA Natsuki, TSUTSUI Kouhei, … Show more authors
MINAMI Kuniaki, TAMURA Hiroshi, UCHIDA Daisuke, SHIRAHATA Hiromi, YOSHIOKA Natsuki, TSUTSUI Kouhei, FUJINO Daichi Hide authors
Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 76 ( 3 ) 496 - 509 2020
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Society of Civil Engineers Joint Work
<p> Relaxation of high strength bolted joints causes large bolt pretension loss at an initial stage of relaxation. However, the detailed characteristics had not been clarified. In this study, relaxation tests targeting many types of high strength bolted joints were carried out. Then, we investigated characteristics of bolt pretension loss at an initial stage of relaxation by literature search. From these results, we discussed the initial value setting method for relaxation tests in high strength bolted joints.</p>
Other Link： https://ci.nii.ac.jp/naid/130007941507
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SLIPPING BEHAVIOR OF HIGH STRENGTH BOLTED JOINTS INCLUDING DIFFERENT CONTACT SURFACES
TSUTSUI Kohei, MINAMI Kuniaki, YOKOYAMA Hideki, AMANO Takafumi, TAMURA Hiroshi
Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 76 ( 2 ) 331 - 342 2020
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：Japan Society of Civil Engineers Joint Work
<p> In high strength bolted joints, dissimilar belted joints with different friction surface specifications may be used on the front and back surfaces (for example, the outer and inner surfaces of a box girder), however the slipping behavior of the joints was not clear. This study is an experimental study aimed at clarifying the slip behavior and slip strength of the joint. In this experiment, high strength bolted joint specimens with thermal spraying on the front and inorganic zinc rich paint on the back were manufactured, and relaxation tests and slipping resistance tests were carried out using them. During the slip strength test, displacement gauges were installed on the front and back surfaces, respectively, and the behavior during slipping was measured to clarify the behavior of dissimilar belted joints. The slip strength of the joint was clarified and the applicability of dissimilar belted joints was also shown.</p>
Other Link： https://ci.nii.ac.jp/naid/130007889198
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高架橋上に設置された照明柱の耐震性評価
藤野 陽三, 田村 洋
土木学会年次学術講演会講演概要集(CD-ROM) 75th 2020
Language：The in addition, foreign language Publishing type：Research paper (scientific journal) Joint Work
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（報告）高力ボルト摩擦接合継手のすべり耐力試験におけるすべり発生時の変位量
南 邦明、田村 洋，白旗弘実，内田大介，吉岡夏樹，濱 達矢
土木学会論文集A1 2019.8 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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高力ボルト継手における摩擦面の数に応じた導入ボルト軸力に関する検討
南邦明，田村洋，吉岡夏樹，内田大介，茂呂充，安藤光希
土木学会論文集A1 2019.2 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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Modified-Weibull-stress-based evaluation of brittle fracture occurrence during earthquakes in steel members
Hiroshi Tamura, Eiichi Sasaki and Satoshi Tominaga
Engineering Fracture Mechanics 2018.10 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Quantitative evaluation of thickness reduction in corroded steel plates using surface SH waves
Keigo Suzuki, Nguyen Phuong Ha, Yuichi Otobe, Hiroshi Tamura and Eiichi Sasaki
44th Annual Review of Progress in Quantitative Nondestructive Evaluation 2018.4 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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位相特性を利用した低周波渦電流による鋼部材の腐食損傷分析手法の構築
阿久津絢子，佐々木栄一，田村洋
土木学会論文集A1 2018.2 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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低周波渦電流による鋼部材の腐食損傷状態分析
阿久津絢子，佐々木栄一，蛯沢佑紀，田村洋
土木学会論文集A1 2017.5 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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A comprehensive study on development of a small-sized self-propelled robot for bridge inspection
Ayako Akutsu, Eiichi Sasaki, Koichi Takeya, Yusuke Kobayashi, Keigo Suzuki and Hiroshi Tamura
Structure and Infrastructure Engineering 2016.10 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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Effects of high strain rate on low-cycle fatigue behavior of structural steel in large plastic strain region
Natdanai Sinsamutpadung, Eiichi Sasaki, Hiroshi Tamura
Journal of JSCE 2016.6 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work
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修正ワイブル応力に基づく鋼部材の地震時脆性破壊発生限界の評価
田村洋，佐々木栄一
土木学会論文集A1 2015.6 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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斜面近傍に位置する逆T字型送電鉄塔基礎の引揚支持力解析
山川優樹, 溝江弘樹, 千田大, 戸田丈, 池田清宏, 田村洋, 寺田 賢二郎
土木学会論文集C 2015.2 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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鋼製橋脚隅角部における地震時塑性変形に伴う局部温度上昇とその影響に関する一検討
大西達也，佐々木栄一，田村洋，山田均，勝地弘
土木学会論文集A1 2013.5 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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溶接部の止端形状が地震時脆性破壊の発生限界状態に及ぼす影響
田村洋，佐々木栄一，山田 均，勝地弘
鋼構造論文集 2013.3 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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動的負荷の影響に着目した鋼製橋脚隅角部における地震時脆性破壊発生要因の検討
田村洋，佐々木栄一，山田均，勝地弘
土木学会論文集A1 2012.5 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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地震時に曲げを受ける溶接部の延性き裂発生に与える溶接部形状の影響と止端仕上げによる抑制効果
田村洋，佐々木栄一，金成東，山田均，勝地弘
鋼構造論文集 2010.12 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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応力三軸度に着目した鋼製橋脚における地震時脆性破壊発生要因に関する解析的検討
田村洋，佐々木栄一，山田均，勝地弘
土木学会論文集 2010.7 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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Involvements of Stress Triaxiality in the Brittle Fracture during Earthquakes in Steel Bridge Bents
Hiroshi Tamura, Eiichi Sasaki, Hitoshi Yamada, Hiroshi Katsuchi and Theeraphong Chanpheng
International Journal of Steel Structures 2009.9 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Joint Work