Steel Science Portal

Kou kouzou rombunshuu
New Arrival Alert : OFF

You can use this feature after you logged into the site.
Please click the button below.

Log in / Sign up
ONLINE ISSN: 1884-0329
PRINT ISSN: 1880-9928

Kou kouzou rombunshuu Vol. 22 (2015), No. 87

  • EQUATION FOR EVALUATING THE EFFECTIVE LENGTH FACTOR OF MEMBERS SUBJECTED TO LINEALLY VARYING AXIAL FORCE

    Shuhei HARA, Masae KIDO, Keigo TSUDA

    pp. 87_1-87_7

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.11273/jssc.22.87_1

    Abstract

    The purpose of this paper is to propose a formula for evaluating an effective length factor of a column subjected to lineally varying axial force. The boundary condition of the column is simply support or fixed end at both ends. Analysis is performed by using the energy method and the assumed buckling mode is obtained by the trial and error method. Moreover, the effective length factors prescribed before are compared with proposed one. It is shown that the evaluation accuracy for the effective length factor is high.

    Recommended Articles: Physico-chemical and Thermal Properties of Fuel Briquettes Derived from Biomass Furnaces as By-Products [ View more ]

    x

    Readers Who Read This Article Also Read

    1. Physico-chemical and Thermal Properties of Fuel Briquettes Derived from Biomass Furnaces as By-Products Journal of the Japan Institute of Energy Vol.95(2016), No.9

  • EXPERIMENTAL INVESTIGATION ON DYNAMIC RESPONSES OF CONCRETE-FILLED STEEL TUBULAR MEMBERS SUBJECTED TO TRANSVERSE IMPACT LOADS

    Mahmud Kori EFFENDI, Hiromitsu KAWAGUCHI, Kosho MINAMI, Akihiko KAWANO

    pp. 87_9-87_21

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.11273/jssc.22.87_9

    Abstract

    Current Tsunami disaster events have indicated that the needs of Tsunami evacuation buildings. Such buildings should be designed to withstand not only wave pressure of Tsunami but also collision of flotsam carried by Tsunami. With respect to the collision of flotsam, the quantitative design method has not been established so far. In this paper, we carried out the impact loading test of concrete-filled steel tubular (CFT) members because CFT members can resist well against locally intensive loads at collision surfaces. For the comparison, vacant steel tubular members are also tested. Being based on the experimental results, we discuss the collapse modes, energy balance between input energy by impact loads and energy absorption capacity of CFT members, and the balance between the impulse and the momentum. In order to make clear dynamic effects in impact loading test, static loading test is conducted as well.

    Recommended Articles: FATIGUE CRACK GROWTH RATE OF STEELS UNDER LARGE CYCLIC STRAIN AND ITS APPLICATION TO CRACK GROWTH PREDICTION IN WELDED JOINTS [ View more ]

    x

    Readers Who Read This Article Also Read

    1. FATIGUE CRACK GROWTH RATE OF STEELS UNDER LARGE CYCLIC STRAIN AND ITS APPLICATION TO CRACK GROWTH PREDICTION IN WELDED JOINTS Kou kouzou rombunshuu Vol.23(2016), No.89
    2. Demonstration of the Applicability of Nondestructive Microwave Testing to the Long-Range Inspection of Inner-Surface Cracks in Tubes MATERIALS TRANSACTIONS Vol.58(2017), No.4
    3. Temperature Dependency of Diffusional Transformation Texture Development in Steel Sheet MATERIALS TRANSACTIONS Vol.58(2017), No.4

  • Analytical research on applicability of strength equation for steel truss gusset plates subjected to compressive force

    Tetsuro KAWAGUCHI, Hideyuki KASANO, Teruhiko YODA, Takehiro HIRAYAMA, Kuniei NOGAMI, Yusuke KISHI

    pp. 87_23-87_32

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.11273/jssc.22.87_23

    Abstract

    A joint of truss bridges which connects main structural members is the critical part of the structure system. For the collapse of I-35W bridge in the United States in 2007, the collapse was proceeded from the failure of the gusset plates in the joint which was subjected to compressive force through the diagonal member. After this incident, the method to evaluate the capacity of gusset plates subjected to compressive force has been investigated in the research field. This study focuses on the pre-proposed strength equation of gusset plates subjected to compressive force, and examines the applicability of the strength equation by FEM analyses of multiple joint models which are created on the basis of the real joints in the former Choshi Bridge.

  • A STUDY ON THE BRRP SEISMIC DAMPER-SUITABLE FORM OF RIPPLED CORE PLATES AND DYNAMIC PERFORMANCE

    Shinsuke YAMAZAKI, Tadayuki NORO, Nobuaki SAKURAI, Tsutomu USAMI

    pp. 87_33-87_46

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.11273/jssc.22.87_33

    Abstract

    New Seismic dampers named Buckling-Restrained Rippled Plate (BRRP) dampers have been developed. BRRP is similar in shape to BRB (Buckling-Restrained Brace，or, Un-bonded Brace), but its core member is a 2D rippled plate instead of a 1D narrow flat plate. Firstly, to acquire the fundamental knowledge of the performance of BRRP, a parametric study regarding the curvature of rippled plate is made by a combined geometric and material nonlinear analysis. Secondly, static cyclic loading tests are performed to investigate the elasto-plastic cyclic loading behavior of BRRPs. Furthermore, dynamic cyclic loading tests are also conducted to examine the dynamic performance and the durability of BRRPs.

  • REMOTE NDT TECHNIQUE FOR THROUGH-WELD CRACK IN ORTHOTROPIC STEEL DECK BY TEMPERATURE GAP MEASUREMENT USING INFRARED THERMOGRAPHY

    Yoshiaki MIZOKAMI, Yoshihiro KOBAYASHI, Yui IZUMI, Takahide SAKAGAMI

    pp. 87_47-87_56

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.11273/jssc.22.87_47

    Abstract

    Detection of fatigue cracks at rib-to-deck weld bead in orthotropic steel decks for highway bridges by conventional nondestructive testing (NDT) techniques generally entails many difficulties such as accessibility, inspection time, cost and crack detectability. This paper presents a study on the applicability of a newly developed NDT technique for rib-to-deck weld cracks based on the detection of temperature gaps caused by thermal insulation effect due to the existence of cracks. The use of infrared thermography for detecting temperature gaps provided high-performance remote and effective NDT technique. Detectability of fatigue cracks by the proposed technique was investigated in an actual bridge, in terms of crack length, weather conditions (ambient temperature, sunlight) and measuring conditions (specification of infrared thermography, object distance, spatial resolution). Further, the suitable season and time for the technique were also investigated from one-year temperature monitoring of the bridge. As a result, the effectiveness and practicability of the proposed technique was verified.
  • © 2015 Japanese Society of Steel Construction

Article Access Ranking

22 Feb. (Last 30 Days)

  1. Thermodynamic Modeling of the SFCA Phase Ca2(Fe, Ca)6(Fe, Al, Si)6O20 Tetsu-to-Hagané Advance Publication
  2. Effect of Nut Coke Addition on Physicochemical Behaviour of Pellet Bed in Ironmaking Blast Furnace ISIJ International Advance Publication
  3. Thermal Driving Demonstration of Li4SiO4/CO2/Zeolite Thermochemical Energy Storage System for Efficient High-Temperature Heat Utilizations ISIJ International Advance Publication
  4. Evolution of Blast Furnace Process toward Reductant Flexibility and Carbon Dioxide Mitigation in Steel Works ISIJ International Vol.56(2016), No.10
  5. Effects of Sulfur and Titanium Interaction in Molten Pig Iron on Erosion of Carbon Brick ISIJ International Vol.59(2019), No.1
  6. Chemical Structure of Si–O in Silica Fume from Ferrosilicon Production and Its Reactivity in Alkali Dissolution ISIJ International Advance Publication
  7. Viscosity Property and Melt Structure of CaO–MgO–SiO2–Al2O3–FeO Slag System ISIJ International Vol.59(2019), No.1
  8. Preparation of High-Carbon Metallic Briquette for Blast Furnace Application ISIJ International Vol.59(2019), No.1
  9. Preface to the Special Issue “Heterogeneous Structure Control: Towards Innovative Development of Metallic Structural Materials” Tetsu-to-Hagané Vol.105(2019), No.2
  10. Effects of Impurities and Processing Conditions in Al–1%Mn Alloys on the Formation of Thermally Stabilized Substructures MATERIALS TRANSACTIONS Vol.59(2018), No.11

Search Phrase Ranking

22 Feb. (Last 30 Days)

  1. blast furnace
  2. blast furnace productivity
  3. blast furnace permeability
  4. 鉄と鋼
  5. clean steel
  6. hydrogen brittle
  7. mold flux
  8. takayuki maeda
  9. mill setup
  10. mill-setup