Search Results 1-20 of 3782

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Flow Corrosion Behavior of X100 Pipeline Steel in Simulated Formation Water

LI Wensheng , FU Anqing , TIAN Yan , JU Yafeng , XUE Menghan , YIN Chengxian , ZHANG Qiuli

… The self-designed flow system was used to study the flow corrosion of X100 pipeline steel in simulated formation water environment by electrochemical measurements as well as computational fluid dynamics (CFD) simulation. … The effects of fluid flow velocity and fluid impact angle on X100 steel were determined. …

Electrochemistry 89(1), 59-66, 2021

J-STAGE
2

Influence of Heating Conditions on the Strength of Coke Produced from Slightly-Caking Coal Containing Chemically-Loaded Thermoplastic Components [in Japanese]

Tsubouchi Naoto , Naganuma Ryo , Mochizuki Yuuki , Hayashizaki Hideyuki , Shishido Takahiro

… An investigation of the use of a SUS-tube to produce high-strength coke from slightly-caking coal with chemically-loaded HPC pyridine-soluble components reveals that high-strength coke may be obtained by 20ºC/min to 400ºC and then continuing to heat at 3ºC/min to 1000ºC. …

Tetsu-to-Hagane 107(1), 24-34, 2021

J-STAGE
3

Influence of Additive Amount and Heating Conditions on the Strength of Coke Prepared from Non-Caking Coal [in Japanese]

Tsubouchi Naoto , Naganuma Ryo , Mochizuki Yuuki , Hayashizaki Hideyuki , Shishido Takahiro

… In the present study, we prepare several types of specimens from non-caking coal – including specimens in which noncovalent bonds between O-functional groups in coal are cleaved by pyridine and HPC-derived thermoplastic components are introduced into the pores produced by swelling, as well as specimens consisting of physical blends with HPC – and examine the influence of heating conditions and types of caking agents on the production of high-strength coke using a SUS tube. …

Tetsu-to-Hagane 107(1), 35-43, 2021

J-STAGE
4

COMPARISON BETWEEN SUPERPOSED STRENGTH AND ULTIMATE FLEXURAL STRENGTH OF RECTANGULAR CFT SECTION [in Japanese]

KIDO Masae , TSUDA Keigo

… Numerical calculation based on the theoretical analysis is performed taking the width-to-thickness ratio of steel tube, strengths of steel and concrete and the ultimate strain as the analytical parameters, and moment -axial load interaction relationships are shown. …

Journal of Structural and Construction Engineering (Transactions of AIJ) (777), 1503-1512, 2020-11

J-STAGE AIJ
5

EXPERIMENTAL STUDY ON FIRE RESISTANCE OF CFT COLUMNS WITH FIRE PROTECTION AT THE STANDARD FIRE (PART 1): BEHAVIOR AND LOAD SUPPORT ABILITY OF CFT COLUMNS WITH FIRE PROTECTION USING ORDINARY AND HIGH STRENGTH MATERIAL [in Japanese]

YOSHINO Shigeru

… as a cause CFT column with fire protection was recognized as a fire resistance structure with temperature limitations of steel tube, there were few experimental studies on the behavior and the load support ability at the fire. In this study, the ratio of the compressive strength of steel tube to the compressive strength of filled concrete at room temperature "axial strength ratio" is proposed as an index to show axial strength in a high temperature …

Journal of Structural and Construction Engineering (Transactions of AIJ) (774), 1103-1112, 2020-08

J-STAGE AIJ AIJ
6

SHEAR STRENGTH OF SRC BEAM-TO-COLUMN JOINTS WITH CONCRETE FILLED SQUARE TUBULAR COLUMN [in Japanese]

KISHIKI Shoichi , KIBISHI Yuta , ADACHI Tomohiro , SAKUTA Joji , KIYOHARA Toshihiko , YAMADA Satoshi

… However, for example, when T-shaped RC encasements are covering steel frames at the joints from the ground to the basement floor, the structural behavior of the beam-to-column joints is too complicated; …

Journal of Structural and Construction Engineering (Transactions of AIJ) (774), 1091-1101, 2020-08

J-STAGE AIJ AIJ
7

LIMIT CYCLE OF SQUARE CONCRETE FILLED STEEL TUBULAR BEAM-COLUMNS SUBJECTED TO LATERAL LOAD WITH CONSTANT CYCLIC DISPLACEMENT [in Japanese]

KIDO Masae , TSUDA Keigo , FUKUMOTO Toshiyuki , ICHINOHE Yasuo , MORITA Koji

… (25, 17), steel tube (BCR295, SA440Mod) and CFT beam-columns or hollow steel tube beam-columns. …

Journal of Structural and Construction Engineering (Transactions of AIJ) (773), 981-991, 2020-07

J-STAGE AIJ
8

Experimental Study of Centrally Loaded Column Composed of Steel Tube, Timber and Grout (Part 3) [in Japanese]

中原浩之 , 陳逸鴻 , 坂井実佳子

… The authors have developed a new hybrid member composed of wood, cement grout and steel tube (WGFT). … This is similar to the concrete filled steel tube (CFT), because the wood occupies the inner space of steel tube mainly, and WGFT has advantages of its weight against to CFT. …

長崎大学大学院工学研究科研究報告 50(95), 13-19, 2020-07

IR
9

Evaluation for Ultimate Strength of Concrete Filled Steel Tube Pile in Liquefied Soil [in Japanese]

的場萌子 , 後藤大輝 , 木村祥裕

日本建築学会東北支部研究報告集. 構造系 (83), 87-90, 2020-06

AIJ
10

Hot Gas Blow Forming Technology for Steel Tube with Flange Shape [in Japanese]

野際公宏

塑性と加工 = Journal of the Japan Society for Technology of Plasticity : 日本塑性加工学会論文誌 61(712), 263-267, 2020-05
11

ULTIMATE STRENGTH OF CONCRETE FILLED SQUARE STEEL TUBULAR BEAM-COLUMNS:Required conditions for attainment of full plastic moment and framework and issues of strength design [in Japanese]

KIDO Masae , TSUDA Keigo , HARAGUCHI Masayuki

… While the CFT beam-columns can be designed by using the strength formulas specified by the "Recommendations for Design and Construction of Concrete Filled Steel Tubular Structures", the required conditions for attainment of full plastic moment are not apparent. … In this study, the strengths of concrete filled steel square tubular beam-columns are obtained by an analytical work, and the required conditions are proposed. …

Journal of Structural and Construction Engineering (Transactions of AIJ) (769), 415-425, 2020-03

J-STAGE AIJ
12

STUDY ON STRUCTURAL CHARACTERISTICS OF FOLDED BRACE:Investigation of increase of axial yield displacement and buckling restraint effect [in Japanese]

HADA Masaya , TAKEUCHI Kenichi , KITAJIMA Keiji , NAKANISHI Mitsukazu

… In steel framed buildings, braces are widely used as a main earthquake- resistant element. … Specifically, the actual length of the member was made approximately 2.5 times larger than the apparent length by folding three steel bars unicursally. … Elastic limit deformation can be controlled arbitrarily by varying the length or frequency of folding even in cases where the material strength is at the level in ordinary steel. …

Journal of Structural and Construction Engineering (Transactions of AIJ) (769), 373-381, 2020-03

J-STAGE AIJ
13

Stress conditions of steel tube of square CFT columns when reached to the short-term allowable strength : In the case of Menegotto-Pinto's model [in Japanese]

横屋翔 , 劉懋 , 城戸將江

日本建築学会中国支部研究報告集日本建築学会中国支部編 43, 177-180, 2020-02-29
14

Simplification of steel tube brace joints using eccentrically inserted splice plate [in Japanese]

高島将人 , 田川浩 , 陳星辰

日本建築学会中国支部研究報告集日本建築学会中国支部編 43, 153-156, 2020-02-29
15

Weld Interface Failure of Dissimilar Metal Weld of Low-alloy Steel Boiler Tube and Maintenance Guideline for the Failure [in Japanese]

本田雅幹 , 本田尊士 , 池村大成 , 近藤学

火力原子力発電 = The thermal and nuclear power 71(1), 29-33, 2020-01
16

CYCLIC LOADING TEST OF CRUCIFORM FRAME USING HIGH STRENGTH STEEL BOX－SECTION COLUMN TO BEAM MOMENT CONNECTION WITH EXTERIOR DIAPHRAGM [in Japanese]

OBA Ryosuke , MORIOKA Hiromitsu , KINOSHITA Tomohiro , KOETAKA Yuji , SUITA Keiichiro , MURAKAMI Yukio

… In this study, exterior-diaphragm type beam-to-column connections are focused on, because this type of diaphragm has advantage to overcome the difficulties being faced during welding of high strength steels. To improve convenience of construction and transportation efficiency of columns preassembled with exterior diaphragms at fabrication factories, this study introduces square exterior diaphragms with the thick steel plates, whose depth is smaller than conventional exterior diaphragms. …

Journal of Structural and Construction Engineering (Transactions of AIJ) (767), 129-139, 2020-01

J-STAGE AIJ
17

Impact of the Different Friction Coefficients on the Tools on the Mechanics of the Mannesmann 2-roll Tube Piercing

Fernandes Meriane , Marouf Nabil , Montmitonnet Pierre , Mocellin Katia

… A numerical parametric study on friction in cross-roll tube piercing is reported in this paper, in order to assess the role of the different friction coefficients on the different parts of the complex tooling of this process (friction on cross-rolls, Diescher disks, piercing plug). …

ISIJ International 60(12), 2917-2926, 2020

J-STAGE
18

Pre-reduction Behaviour of Manganese Ores in H2 and CO Containing Gases

Ngoy Didier , Sukhomlinov Dmitry , Tangstad Merete

… Non-isothermal experiments were carried out in a vertical thermogravimetric tube furnace. …

ISIJ International 60(11), 2325-2331, 2020

J-STAGE
19

Effect of Gas Pressure on the Formation Mechanism of Welds Based on Local Dry Underwater Welding

Han Leigang , Jiang Donghang , Xu Mengjia , Zhang Qin , Wang Zhenmin

… In this study, a micro drainage cover with dual-gas curtain based on the Lafar tube was used in the local dry underwater MIG welding experiments at a depth of 20 cm to explore the influence of gas pressure on the formation of underwater welds. …

ISIJ International, 2020

J-STAGE
20

Estimation of Solute Carbon Concentration by Electrical Resistivity Measurement in Martensitic Steel [in Japanese]

Masumura Takuro , Taniguchi Taiga , Uranaka Shohei , Hirashima Issei , Tsuchiyama Toshihiro , Maruyama Naoki , Shirahata Hiroyuki , Uemori Ryuji

… As a result, the effects of dislocations and grain boundaries were much smaller than that of solute elements, being only 1 - 2% of the measured electrical resistivity, in martensitic steel. …

Tetsu-to-Hagane 106(11), 835-843, 2020

J-STAGE

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