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Kou kouzou rombunshuu Vol. 13 (2006), No. 49

ISIJ International
belloff
ONLINE ISSN: 1884-0329
PRINT ISSN: 1880-9928
Publisher: Japanese Society of Steel Construction

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Kou kouzou rombunshuu Vol. 13 (2006), No. 49

Slip Characteristic of High Strength Bolted Joints in Deformed H-Beam

Yoshitake OKA, Hiroya OKUBO, Yuichi TATSUMI

pp. 1-9

DOI:

10.11273/jssc1994.13.1

Abstract

This paper describes the results of slip tests and stress relaxation tests on nigh strength bolted friction joints in various conditions to clear the behavior of the joints in deformed H-Beam. Test results show that the projection from outside of the flange makes little difference to the slip characteristics of the joints. And FEM analysis based on the adhesive model can explain the behavior well.

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Slip Characteristic of High Strength Bolted Joints in Deformed H-Beam

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Fundamental Study on Mechanical Behavior and Strength Evaluation of Tensile Joints of Short Connection Type with High Strength and High Ductility Bolts

Takashi YAMAGUCHI, Toshiyuki KITADA, Shugang SONG

pp. 11-22

DOI:

10.11273/jssc1994.13.11

Abstract

Carried out in this study is the experiment using a split tee joint subjected to monotonous tensile load in order to evaluate the strength and deformability of high strength bolted tensile joints with high strength and high ductility bolts (waisted shank bolts). Then, the mechanical behavior of the joint with waisted shank bolts is discussed on the basis of the experimental results. Furthermore, the strength and the failure mode of the joints are evaluated according to the design standards, Eurocode and JSSC code for this type of joints. As a result, it is possible to apply these codes to the design of the joint with waisted shank bolts basically.

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Fundamental Study on Mechanical Behavior and Strength Evaluation of Tensile Joints of Short Connection Type with High Strength and High Ductility Bolts

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Empirical Formulae Estimating Strength of Weld Metal Considered with Cooling Time and Chemical Composition of Weld Metal

Yuzo NISHIDA, Mototsugu TABUCHI, Tsuyoshi TANAKA, Toshihiko NAKANO

pp. 23-36

DOI:

10.11273/jssc1994.13.23

Abstract

ABSTRACT It is well known that the strength of the weld metal depends on cooling time and chemical composition of weld metal. In this paper, empirical formulae estimating the tensile strength and the yield strength of the weld metal considered with cooling time and chemical composition are proposed. The tensile strength of weld metal in beam to column connection is higher than that of butt joint by 3%. For steel with the grade 400NImm2, thestrength of the weld metal is higher than that of the steel, even if heat input (HI) and interpass temperature (IT) arelarge. While, for steel with the grade 490N/mm2, the tensile strength of the weld metal is less than that of the steel, even if HI and IT are small, when chemical composition Ceq≤0.250.

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Empirical Formulae Estimating Strength of Weld Metal Considered with Cooling Time and Chemical Composition of Weld Metal

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Compressive Behavior of Cruciform Column Projection Panel Corrected by Heating

KIM You-Chu, HIROHATA Mikihito, KAWAZU Hideyuki

pp. 37-42

DOI:

10.11273/jssc1994.13.37

Abstract

To elucidate the reason why the compressive behavior of specimens corrected by heating differs from that of virgin specimens, elastic-plastic large deformation analysis was carried out. When considering only residual imperfection, the experimental phenomena could not be simulated. Then considering not only residual imperfection but also the rise of yield stress made by work hardening, the experimental phenomena could be simulated totally. From the analysis, it was elucidated that the reason why the buckling mode of specimens corrected by heating changed was both residual imperfection and the increase of yield stress made by work hardening.

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Compressive Behavior of Cruciform Column Projection Panel Corrected by Heating

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Mechanical Behavior of Hybrid Steel I-girder for Magnetically Levitated Vehicle under Vertical Loading

KIM You-Chul, HIROHATA Mikihito, NAKAJI Eiji

pp. 43-49

DOI:

10.11273/jssc1994.13.43

Abstract

Mechanical behavior of hybrid steel I-girder assembled by high manganese non-magnetic steel (Hi-Mn) and SM490YA steel (SM) under uniform vertical loading was investigated based on the results of elastic-plastic large deformation analysis. In the case of hybrid girder, vertical displacement was larger than that of Hi-Mn girder and smaller than that of SM girder. The maximum load was same as that of Hi-Mn girder. Out-of-plane displacement in the web was larger than those of Hi-Mn and SM girders. When the horizontal stiffener of hybrid girder was moved 10% down, or thickness of the web was increased 10%, out-of-plane displacement could be controlled.

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Mechanical Behavior of Hybrid Steel I-girder for Magnetically Levitated Vehicle under Vertical Loading

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Study on Hysteretic Behavior of Shear Panel Damper using Low Yield Strength Steel

FUJIMOTO Toshiaki, INAI Eiichi, TOMIDA Masahiro

pp. 51-58

DOI:

10.11273/jssc1994.13.51

Abstract

Shear panel damper using low yield strength steel have been widely used for passive control of buildings against earthquakes. During design process, a series of time-history analyses are generally conducted, in order to confirm earthquake response of the damper and building. Accurate analytical model of the damper is necessary, since the damper plays an important role in overall performance of the building. In this study, cyclic loading tests have been conducted to verify the hysteretic behavior for earthquake response of the damper. Analytical model was also proposed. This proposed model could be evaluated hysteretic behavior of the damper in the plastic range.

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Study on Hysteretic Behavior of Shear Panel Damper using Low Yield Strength Steel

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Experimental study on seismic performance of an integrated column by multi steel pipes with hysteretic damper

Hidesada Kanaji, Sakiko Kometani, Kunihiro Hayashi, Kei Teshima, Kenji Nishiumi

pp. 59-72

DOI:

10.11273/jssc1994.13.59

Abstract

This study shows investigations of behavior of an integrated column by multi steel pipes using damage control design. Damage control design method leads major damage into shear panels that connect each steel pipe. Shear panels are built up by low yield point steel, and they have hysteretic energy dissipation properties and reduce acceleration and displacement response of a whole column. Therefore damage of steel piers can be reduced. The experimental study with two types of specimen has been performed. The test results show that damage control design method leads major damage into shear panels.

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Experimental study on seismic performance of an integrated column by multi steel pipes with hysteretic damper

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A Reduction Method of Residual Displacement of Steel Frame with Slip-type Restoring Force Characteristics of Column-base under Earthquake Ground Motion

Akio KAWANO

pp. 73-82

DOI:

10.11273/jssc1994.13.73

Abstract

This is an investigation of method for reduction of residual displacement of steel frame subjected to earthquake ground motion. Considering slip-type restoring force characteristics of column-base, the magnitude of lateral displacement of 5-story weak-beam steel frame model is estimated by earthquake response analysis. To reduce the residual displacement of the weak-beam steel frame, the design method of elastic 2nd floor beam together with elastic column is proposed.

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A Reduction Method of Residual Displacement of Steel Frame with Slip-type Restoring Force Characteristics of Column-base under Earthquake Ground Motion

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Relationship between Mechanical properties and Chemical compositions in steel for bridges (Part.l :Relationship between Tensile strength, Yield strength and Chemical compositions)

Kuniaki MINAMI, Chitoshi MIKI

pp. 83-96

DOI:

10.11273/jssc1994.13.83

Abstract

In the past, we had investigated the number of 1412 steel on the basis of the mill sheet in order to clarify these steel quality, and mechanical properties and chemical compositions of these steel had been shown[1] [2] . However, in these papers, the relationship between their mechanical properties and chemical compositions had not been discussed. In this paper, we investigated the relationship between mechanical properties(tensile strength and yield strength) and chemical compositions(Carbon, Silicon and Manganese) including PCM and Ceq, and these results were shown.

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Relationship between Mechanical properties and Chemical compositions in steel for bridges (Part.l :Relationship between Tensile strength, Yield strength and Chemical compositions)

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