Study on Structural Performance of Steel Concrete Composite Columns using Fiber Reinforced Concrete

Research Project

Project/Area Number	23860049
Research Category	Grant-in-Aid for Research Activity Start-up
Allocation Type	Single-year Grants
Research Field	Building structures/materials
Research Institution	Nihon University
Principal Investigator	FUJIMOTO Toshiaki 日本大学, 生産工学部, 准教授 (30612080)
Project Period (FY)	2011 – 2012
Project Status	Completed (Fiscal Year 2012)
Budget Amount *help	¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000) Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000) Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords	合成構造 / CES構造 / 柱部材 / せん断性状 / ＣＥＳ構造
Research Abstract	Concrete Encased Steel (CES) structural system consisting of fiber reinforced concrete (FRC) and encased steels is a new composite structural system proposed by the authors. This paper discusses how to evaluate the ultimate shear strength of CES columns. It is revealed based on the test results that the AIJ design formulas for SRC structures cannot be applied for evaluating the ultimate strengths of CES columns. Improved design formulas to estimate the ultimate shear strength are proposed for CES columns.