Fatigue behavior of unbonded prestressed reactive powder concrete beams after creep
-
Y. Frank Chen
,
L. Xuguo
Abstract
Failure modes of two kinds of unbonded prestressed reactive power concrete (UPRPC) beams were studied experimentally under static and fatigue loads, and compared. In the tests, deflections, crack widths, rebar strains, and beam strains were measured and analyzed. The fatigue test results show that the fatigue life of non-creeped beams is more than 2 million loading cycles and the creeped beam is damaged after 1.75 million loading cycles. The compression edge strain, mid-span deflection, and rebar strain are -814 μξ, 7.6 mm, and 484 μξ, respectively, for noncreeped UPRPC beams, and -1110 μξ, 11.2 mm, and 1169 μξ , respectively, for creeped UPRPC beams (μξ represents 1 × 10-6). These values are much smaller than the static load failure values. Considering the fatigue residual strain, fatigue elastic modulus degradation, and fatigue strength degradation, a simplified analysis method for a full fatigue process is proposed, which predicts values in good agreement with the measured results.
© 2020 by Walter de Gruyter Berlin/Boston
Artikel in diesem Heft
- Titelei
- CONTENTS
- Materials Testing
- FACHBEITRÄGE
- Early stage crack detection in mechanically joined steel/aluminum joints by condition monitoring
- Microstructure, mechanical and corrosion properties of TIG welded Hastelloy C-276
- Residual stress evaluation during RSW of DP600 sheet steel
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- Hydroforming analysis of exhaust pipe connectors
- TiC coatings on an alloyed steel produced by thermal diffusion
- Mechanical and dielectric behavior of LDPE/Bi-1212 films
- Effect of heat treatment on corrosion and ultrasonic cavitation erosion resistance of AlSi10MnMg alloy
- Effect of impact source on detection quality in impact echo testing of sleeve grouting
- Influence of fiber weight ratio on the mechanical and water absorption performance of borassus/epoxy composites
- Effect of loading rate on cohesive parameters of the adhesive Araldite 2015
- Fatigue behavior of unbonded prestressed reactive powder concrete beams after creep
- Optimization of flank wear and surface roughness during turning of AISI 304 stainless steel using the Taguchi method
- Characterization of hydrogen in a high strength aluminum alloy
- BEZUGSQUELLEN
- IMPRESSUM
Artikel in diesem Heft
- Titelei
- CONTENTS
- Materials Testing
- FACHBEITRÄGE
- Early stage crack detection in mechanically joined steel/aluminum joints by condition monitoring
- Microstructure, mechanical and corrosion properties of TIG welded Hastelloy C-276
- Residual stress evaluation during RSW of DP600 sheet steel
- Capability of martensitic low transformation temperature welding consumables for increasing the fatigue strength of high strength steel joints
- Hydroforming analysis of exhaust pipe connectors
- TiC coatings on an alloyed steel produced by thermal diffusion
- Mechanical and dielectric behavior of LDPE/Bi-1212 films
- Effect of heat treatment on corrosion and ultrasonic cavitation erosion resistance of AlSi10MnMg alloy
- Effect of impact source on detection quality in impact echo testing of sleeve grouting
- Influence of fiber weight ratio on the mechanical and water absorption performance of borassus/epoxy composites
- Effect of loading rate on cohesive parameters of the adhesive Araldite 2015
- Fatigue behavior of unbonded prestressed reactive powder concrete beams after creep
- Optimization of flank wear and surface roughness during turning of AISI 304 stainless steel using the Taguchi method
- Characterization of hydrogen in a high strength aluminum alloy
- BEZUGSQUELLEN
- IMPRESSUM
