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Accession number;99A0325659
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| Title;A study on long-term deformation and stress of prestressed reinforced concrete members. |
| Author;
TEZUKA MASAMICHI
(Orientarukensetsu Giken)
SATO RYOICHI
(Utsunomiya Univ., Fac. of Eng.)
YAMAMOTO HIROTSUGU
(Sumitomo Constr. Co., Ltd.)
TOTTORI SEIICHI
(Railw. Tech. Res. Inst.)
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Journal Title;Proceedings of JSCE (Japan Society of Civil Engineers)
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Journal Code:F0028A
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ISSN:0289-7806
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VOL.;NO.613;PAGE.43-57(1999)
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| Figure&Table&Reference;FIG.21, TBL.8, REF.20 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;A new creep analysis method based on principle of superposition for concrete is proposed, which can analyze not only deformations but also stresses of prestressed reinforced concrete(PRC) members under sustained loads at any ages between the age at prestressing and the age considered. Time-dependent deformation and stress of PRC members, which are cracked by instantaneous loads and afterwards sustained load is increased in two steps, is experimentally studied and the present analysis method is investigated comparing the computed results with experimental results. As a consequence, the present analysis method showed fairly good agreement with experimental results, which overestimated average curvature of the member prestressed higher and that subjected to increased sustained load. Furthermore, the effect of creep and that of shrinkage of concrete on long-term deformation are estimated numerically. (author abst.) |
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