Strength of Concrete Beam - Columns for Evaluating the Superposed Strengh of Slender Concrete Filled Steel Tubular Columns

• TSUDA Keigo

  九州大学　工学部建築学科

• MATSUI Chiaki

  九州大学　工学部建築学科

Bibliographic Information

Other Title

• コンクリート充填鋼管長柱の累加耐力評価に用いるコンクリート柱の耐力

Abstract

In AIJ (Architectural Institute of Japan) design formula for slender composite columns, modified method of the superposed strength of a column section is adopted by considering the effect of additional bending moment (Pδ moment) . In this paper, with respect to the ultimate strength of concrete filled steel tubular columns, end moment (cMu)-axial force(cNu) interaction relations are calculated by assuming a sine curve deflected shape of a concrete beam-column. The value of concrete compressive strength ranges from 240kg/cm² to 960kg/cm². On the basis of the analytical results, the interaction relations are proposed as an algebraic equation. Moreover, example for calculating the end moment-axial force relations is demonstrated.

Journal

• Kou kouzou rombunshuu

  Kou kouzou rombunshuu 3 (10), 39-48, 1996

  Japanese Society of Steel Construction

Keywords

• composite column, design formula, superposed strength, buckling load

Details

• CRID: 1390282680292124800
• NII Article ID: 130004301400
• DOI: 10.11273/jssc1994.3.10_39
• ISSN: 18840329
• ISSN: 18809928
• Data Source:
  • JaLC
  • CiNii Articles
  • Crossref
• Abstract License Flag: Disallowed