2011 Fiscal Year Final Research Report
Creation of Innovative Earthquake Resistant Design for Prestressed Reinforced Concrete Members Based on Bond Condition Control to PC Tendons
| Project/Area Number |
21560596
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Building structures/materials
|
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| Research Institution | Tokyo Metropolitan University |
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Principal Investigator |
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| Project Period (FY) |
2009 – 2011
|
| Keywords | プレストレストコンクリート / PC鋼材 / 付着 / 耐震設計 / 耐震性能評価 / 梁 / 柱梁骨組 / 限界状態 |
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| Research Abstract |
Static tests under cyclic load reversals for prestressed reinforced concrete(PRC) cruciform beam-column subassemblages designed to form beam yielding mechanism, and section analyses assuming that plane sections remain plane, but taking account of bond deterioration along PC tendons by incorporating a strain deviation from a plane section, were carried out to investigate influences of bond condition along beam bars and PC tendons on restoring force hysteresis curves for PRC beams. A simple expression was proposed to evaluate an experienced peak deflection for PRC beams through residual flexural crack width which is one of factors for determining different limit states of beams. A beam deflection related to residual flexural crack width agreed with test results.
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