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Inverse Analysis of R-UHPFRC Beams to Determine the Flexural Response under Service Loading and at Ultimate Resistance
| 题名： | Inverse Analysis of R-UHPFRC Beams to Determine the Flexural Response under Service Loading and at Ultimate Resistance |
| 正文语种： | eng |
| 作者： | Sawicki, Bartlomiej;Bruehwiler, Eugen;Denarie, Emmanuel |
| 作者单位： | Ecole Polytech Fed Lausanne Lab Maintenance & Safety Struct Struct Engn Inst CH-1015 Lausanne Switzerland;Ecole Polytech Fed Lausanne Lab Maintenance & Safety Struct Struct Engn Inst CH-1015 Lausanne Switzerland;Ecole Polytech Fed Lausanne Lab Maintenance & Safety Struct Struct Engn Inst CH-1015 Lausanne Switzerland |
| 关键词： | Ultra high performance fiber reinforced cementitious composites (UHPFRC);Inverse analysis;Nondestructive testing (NDT);Serviceability;Resistance;Scatter |
| 摘要： | Ultra high performance fiber reinforced cementitious composites (UHPFRCs) have demonstrated their outstanding efficiency as structural materials. Determination of the bending resistance of members combining UHPFRC with steel reinforcement bars (R-UHPFRC) using material properties obtained by material testing gives satisfactory results. However, the synergetic interaction between rebar and UHPFRC in the tensile action due to bending, especially under loading-unloading of the structure is not yet well understood. This paper compared methods of analytical inverse analyses, as well as finite-element modeling and nondestructive testing (NDT), for determining UHPFRC material properties based on plates and R-UHPFRC members' test results. It was demonstrated that UHPFRC in the tensile zone of R-UHPFRC members can enter into compression during unloading, influencing the structural response under service loading. |
| 出版年： | 2022 |
| 期刊名称： | Journal of structural engineering |
| 卷： | 148 |
| 期： | 2 |
| 页码： | 04021260.1-04021260.15 |
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