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Analysis of shrinkage and creep effect for bridge widening based on TB-FEM method and experimental research
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| Zeitschriftentitel: | MATEC Web of Conferences |
|---|---|
| Personen und Körperschaften: | , |
| In: | MATEC Web of Conferences, 277, 2019, S. 02015 |
| Format: | E-Article |
| Sprache: | Unbestimmt |
| veröffentlicht: |
EDP Sciences
|
| author_facet |
Peng, Keke Wen, Fangzhen Peng, Keke Wen, Fangzhen |
|---|---|
| author |
Peng, Keke Wen, Fangzhen |
| spellingShingle |
Peng, Keke Wen, Fangzhen MATEC Web of Conferences Analysis of shrinkage and creep effect for bridge widening based on TB-FEM method and experimental research |
| author_sort |
peng, keke |
| spelling |
Peng, Keke Wen, Fangzhen 2261-236X EDP Sciences http://dx.doi.org/10.1051/matecconf/201927702015 <jats:p>Based on TB-FEM method and laboratory test, the influence of shrinkage and creep on the structure of widened bridge is studied. The shrinkage test uses C50 concrete and C50 double-mixture (steel polyester fiber) concrete to prepare the standard prism specimen, and the creep test uses the 15m hollow slab which exactly has the same material, size, prestress and construction method of a real bridge as the creep test specimen. The strain-time curve obtained by shrinkage and creep is used to define the shrinkage and creep characteristics of the material, and Trost-Bazant is combined with finite element method to analyze the mechanical response of the new and old bridge splicing structure caused by shrinkage and creep. The result shows that under the condition of rigid splicing, the new bridge should be supported by the simply supported structure, and it is not suitable to use the same simply supported and continuous hollow slab as the original bridge. Theoretical analysis and example study show that combination of laboratory test and TB-FEM method can reasonably analyze the effect of shrinkage and creep on bridge widening, and provide a theoretical basis for the type selection of widening structure.</jats:p> Analysis of shrinkage and creep effect for bridge widening based on TB-FEM method and experimental research MATEC Web of Conferences |
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| title |
Analysis of shrinkage and creep effect for bridge widening based on TB-FEM method and experimental research |
| title_unstemmed |
Analysis of shrinkage and creep effect for bridge widening based on TB-FEM method and experimental research |
| title_full |
Analysis of shrinkage and creep effect for bridge widening based on TB-FEM method and experimental research |
| title_fullStr |
Analysis of shrinkage and creep effect for bridge widening based on TB-FEM method and experimental research |
| title_full_unstemmed |
Analysis of shrinkage and creep effect for bridge widening based on TB-FEM method and experimental research |
| title_short |
Analysis of shrinkage and creep effect for bridge widening based on TB-FEM method and experimental research |
| title_sort |
analysis of shrinkage and creep effect for bridge widening based on tb-fem method and experimental research |
| url |
http://dx.doi.org/10.1051/matecconf/201927702015 |
| publishDate |
2019 |
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02015 |
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<jats:p>Based on TB-FEM method and laboratory test, the influence of shrinkage and creep on the structure of widened bridge is studied. The shrinkage test uses C50 concrete and C50 double-mixture (steel polyester fiber) concrete to prepare the standard prism specimen, and the creep test uses the 15m hollow slab which exactly has the same material, size, prestress and construction method of a real bridge as the creep test specimen. The strain-time curve obtained by shrinkage and creep is used to define the shrinkage and creep characteristics of the material, and Trost-Bazant is combined with finite element method to analyze the mechanical response of the new and old bridge splicing structure caused by shrinkage and creep. The result shows that under the condition of rigid splicing, the new bridge should be supported by the simply supported structure, and it is not suitable to use the same simply supported and continuous hollow slab as the original bridge. Theoretical analysis and example study show that combination of laboratory test and TB-FEM method can reasonably analyze the effect of shrinkage and creep on bridge widening, and provide a theoretical basis for the type selection of widening structure.</jats:p> |
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| author | Peng, Keke, Wen, Fangzhen |
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| author_sort | peng, keke |
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| description | <jats:p>Based on TB-FEM method and laboratory test, the influence of shrinkage and creep on the structure of widened bridge is studied. The shrinkage test uses C50 concrete and C50 double-mixture (steel polyester fiber) concrete to prepare the standard prism specimen, and the creep test uses the 15m hollow slab which exactly has the same material, size, prestress and construction method of a real bridge as the creep test specimen. The strain-time curve obtained by shrinkage and creep is used to define the shrinkage and creep characteristics of the material, and Trost-Bazant is combined with finite element method to analyze the mechanical response of the new and old bridge splicing structure caused by shrinkage and creep. The result shows that under the condition of rigid splicing, the new bridge should be supported by the simply supported structure, and it is not suitable to use the same simply supported and continuous hollow slab as the original bridge. Theoretical analysis and example study show that combination of laboratory test and TB-FEM method can reasonably analyze the effect of shrinkage and creep on bridge widening, and provide a theoretical basis for the type selection of widening structure.</jats:p> |
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| source_id | 49 |
| spelling | Peng, Keke Wen, Fangzhen 2261-236X EDP Sciences http://dx.doi.org/10.1051/matecconf/201927702015 <jats:p>Based on TB-FEM method and laboratory test, the influence of shrinkage and creep on the structure of widened bridge is studied. The shrinkage test uses C50 concrete and C50 double-mixture (steel polyester fiber) concrete to prepare the standard prism specimen, and the creep test uses the 15m hollow slab which exactly has the same material, size, prestress and construction method of a real bridge as the creep test specimen. The strain-time curve obtained by shrinkage and creep is used to define the shrinkage and creep characteristics of the material, and Trost-Bazant is combined with finite element method to analyze the mechanical response of the new and old bridge splicing structure caused by shrinkage and creep. The result shows that under the condition of rigid splicing, the new bridge should be supported by the simply supported structure, and it is not suitable to use the same simply supported and continuous hollow slab as the original bridge. Theoretical analysis and example study show that combination of laboratory test and TB-FEM method can reasonably analyze the effect of shrinkage and creep on bridge widening, and provide a theoretical basis for the type selection of widening structure.</jats:p> Analysis of shrinkage and creep effect for bridge widening based on TB-FEM method and experimental research MATEC Web of Conferences |
| spellingShingle | Peng, Keke, Wen, Fangzhen, MATEC Web of Conferences, Analysis of shrinkage and creep effect for bridge widening based on TB-FEM method and experimental research |
| title | Analysis of shrinkage and creep effect for bridge widening based on TB-FEM method and experimental research |
| title_full | Analysis of shrinkage and creep effect for bridge widening based on TB-FEM method and experimental research |
| title_fullStr | Analysis of shrinkage and creep effect for bridge widening based on TB-FEM method and experimental research |
| title_full_unstemmed | Analysis of shrinkage and creep effect for bridge widening based on TB-FEM method and experimental research |
| title_short | Analysis of shrinkage and creep effect for bridge widening based on TB-FEM method and experimental research |
| title_sort | analysis of shrinkage and creep effect for bridge widening based on tb-fem method and experimental research |
| title_unstemmed | Analysis of shrinkage and creep effect for bridge widening based on TB-FEM method and experimental research |
| url | http://dx.doi.org/10.1051/matecconf/201927702015 |