材料損傷の発生順序に着目した合成はりの耐荷挙動に関する実験的研究  [in Japanese] EXPERIMENTAL STUDY ON LOAD CARRYING BEHAVIOR OF COMPOSITE BEAM FOCUSING ON SEQUENCE OF DAMAGE OF CONSTITUTIVE MATERIALS  [in Japanese]

Access this Article

Author(s)

Abstract

土木学会複合構造標準示方書では,合成はりの曲げ破壊照査に際し,鋼はりの座屈挙動に応じて3つの断面クラスに分類し,それぞれ異なる限界状態(材料損傷)を想定することとしているが,このような断面分類を行うことなく,発生する材料損傷の種類やそれらの発生順序を任意に設定することができれば,鋼とコンクリートの材料特性を最大限に活かした合理的な設計が行える可能性がある.そこで本研究では,上記のような設計法の構築に資するため,コンパクト断面(全塑性モーメントまで座屈しない断面)に分類され,頭付きスタッドの配置間隔が異なる2種類の合成はり模型試験体の静的載荷試験結果を整理し,両者の構成部材の損傷順序を比較して,耐荷挙動の違いについて検討した.

 The ultimate moment of resistance of the composite beam with the steel beam and the reinforced concrete slab generally depends on the classification of the cross sections. JSCE Standard Specifications for Hybrid Structures also use the classification of the compact, non-compact and slender cross sections to calculate the ultimate moment of resistance of the composite beam. However if we can calculate the ultimate moment of resistance of the composite beam regardless of the classification of the cross section, more rational proportion of the composite beam can be potentially designed using constitutive material performance as possible as we can.<br> In this research, we conduct the static test of the composite beam specimens which is the beam with the compact cross section and we attempt to confirm the load carrying behavior of the specimen in detail. In this case, two types of the specimens with studs differently arranged at equal intervals are employed and we investigate especially the sequence of the damage of the steel beam and the concrete slab such as the yielding of steel and the compressive failure of concrete.

Journal

  • Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))

    Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 72(5), II_69-II_79, 2016

    Japan Society of Civil Engineers

Codes

Page Top