Effects of the coupling of bending moments and shear forces on the seismic behavior of elastic-plastic beam models

• Okumura Toru

  （株）地震工学研究開発センター

• Goto Yoshiaki

  名古屋工業大学 次世代耐震工学研究所

Bibliographic Information

Other Title

• 曲げとせん断の連成が弾塑性はりモデルを用いた耐震解析に与える影響
• マゲ ト センダン ノ レンセイ ガ ダン ソセイハリ モデル オ モチイタ タイシン カイセキ ニ アタエル エイキョウ

Abstract

The coupling effect of bendig moments and shear forces on the materially nonlinear behavior of the Timoshenko beam model is usually ignored in the conventional seismic analysis. This paper invetigate the validity and accuracy of ignoring the above coupling effects. As the result of this investigation, it is revealed that there exist cases in actural structures where the coupling effect considerably reduces the strength and ductility of structures. In these cases, the coupling effect have to be inevitably considered. Therefore, the corresponding cases are demonstrated in terms of structural parameter ranges. The validity of the above parameter range is examined by the time history response analysis on elevated-girder bridge model under bi-directional seismic accelerations.

Journal

• Journal of Structural Engineering, A

  Journal of Structural Engineering, A 65A (0), 225-235, 2019-03-15

  Japan Society of Civil Engineers

Keywords

• seismic analysis
• elasto-plastic beam model
• shear force
• Timoshenko beam element

Details

• CRID: 1390846609799782912
• NII Article ID: 130007791170
• NII Book ID: AA12210243
• ISSN: 18816614
• ISSN: 1881820X
• DOI: 10.11532/structcivil.65a.225
• NDL BIB ID: 029661056
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I029661056
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed