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

    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

    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.
    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

    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

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

    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

    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

    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

    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

    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

    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.

Article Access Ranking

14 Aug. (Last 30 Days)

  1. Improvement of Wettability between Steel and Liquid Zn–Al Alloy by Forced Wetting ISIJ International Advance Publication
  2. Crystal Structures and Mechanical Properties of Fe–Zn Intermetallic Compounds Formed in the Coating Layer of Galvannealed Steels ISIJ International Advance Publication
  3. Bend Failure Mechanism of Zinc Coated Advanced High Strength Steel ISIJ International Advance Publication
  4. Effect of Dew Point on Galvanizability in 4 Mass% Al Added Low Density Steel ISIJ International Advance Publication
  5. Effect of Annealing Temperature on the Selective Oxidation and Reactive Wetting of a 0.1C-6Mn-2Si Advanced High Strength Steel During Continuous Galvanizing Heat Treatments ISIJ International Advance Publication
  6. Effect of B on Growth of Recrystallized Grain of Ti-added Ultra-low Carbon Cold-rolled Steel Sheets ISIJ International Advance Publication
  7. Effect of Surface Oxidation on Decarburization of a Fe-3%Si Steel during Annealing ISIJ International Advance Publication
  8. Strip Edge Defects and Comprehensive Control Technology in Trimming Process ISIJ International Advance Publication
  9. Production and Technology of Iron and Steel in Japan during 2017 ISIJ International Vol.58(2018), No.6
  10. Texture Evolution during Recrystallization and Grain Growth in Heavily Cold-rolled Fe-3%Si Alloy ISIJ International Advance Publication

Search Phrase Ranking

14 Aug. (Last 30 Days)

  1. blast furnace
  2. blast furnace permeability
  3. build up
  4. skin pass mill
  5. steel
  6. dent
  7. hearth roll
  8. isij
  9. ahss
  10. blast furnace productivity