| Project/Area Number |
04302040
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| Research Category |
Grant-in-Aid for Co-operative Research (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
コンクリート工学・土木材料・施工
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| Research Institution | Hokkaido University |
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Principal Investigator |
KAKUTA Yoshio Hokkaido Univ., Fac.of Eng., Prof., 工学部, 教授 (60001210)
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| Co-Investigator(Kenkyū-buntansha) |
MAKIZUMI Tatsunori Kyusyu Univ., Fac.of Eng., Ass.Prof., 工学部, 助教授 (20136534)
ROKUGO Keitetsu Gifu Univ., Fac.of Eng., Ass.Prof., 工学部, 助教授 (40127155)
MARUYAMA Kyuichi Nagaoka Univ.of Technology, Ass.Prof., 工学部, 助教授 (30126479)
UOMOTO Taketo Univ.of Tokyo, Inst.of Indust.Sc., Prof., 生産技術研究所, 教授 (80114396)
TUJI Yukikazu Gunma Univ., Fac.of Eng., Prof., 工学部, 教授 (50048922)
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| Project Period (FY) |
1992 – 1993
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| Project Status |
Completed (Fiscal Year 1993)
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| Budget Amount *help |
¥12,100,000 (Direct Cost: ¥12,100,000)
Fiscal Year 1993: ¥2,900,000 (Direct Cost: ¥2,900,000)
Fiscal Year 1992: ¥9,200,000 (Direct Cost: ¥9,200,000)
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| Keywords | Continuous fiber / FRP / Prestressing tendon / Reinforcement / Reinforced concrete / Prestressed concrete / Limit state design / Ultimate shear strength |
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| Research Abstract |
Continuous fiber reinforcing materials(CFRM) are given attension as a new highquality reinforcing orprestressing material for concrete structures. The purpose of this study was to establish design procedures for concrete structures with CFRM.
The main results were obtained from the following investigations.
1) Variation properties of tensile strength of CFRM of carbon, aramid and glass fibers, neccessary number of specimens to determine the characteristic strength of CFRM, relation between elastic moduli of CFRM and stress levels, bond properties of CFRM, and creep properties of CFRM were investigated.
2) Ultimate moment of concrete beams with CFRM main reinforcement, ultimate shear force of beams with CFRM main reinforcement and with or without CFRM shear reinforcement, and ultimate shear force of prestressed concrete beams with CFRM tendon were investigated.
3) Minimum main reinforcement of beams with CFRM, and improvement of ductility and capacity of moment redistribution of beams by confinement of concrete with CFRM were investigated.
4) Deflection and crack width of beams with CFRM were investigated.
5) Prestressed concrete with CFRM external cable, strengthening of damaged reinforced concrete by prestressing with CFRM external cable, and chemically prestressed concrete with CFRM were investigated.
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