Biswal, S and Ramaswamy, A (2018) Estimation of prestress losses in concrete structures over a long time. In: 40th IABSE Symposium in Nantes 2018: Tomorrow's Megastructures, 19 - 21 September 2018, Nantes, S3-21-S3-28.
Full text not available from this repository.Abstract
Existing models for shrinkage and creep predictions in the codal provisions and in the standard recommendations do not agree in a best possible way with the available experimental results reported in the literature, as the existing models have been developed based on an arbitrary selection of experimental data sets among all the available data sets. Statistical variations are present in the creep and shrinkage models, in the parameters of these models, in the shrinkage and creep mechanisms, in the environmental conditions, and in the in-situ measurements. In this study a single best model out of all the available deformation models is obtained through uncertainty based model averaging, when uncertainties are present in the models, in the measurements and in the parameters of each models. The long-time deformations from the single best model using the measurements up to the short time period proposed in this study is verified with reported test data.
| Item Type: | Conference Paper |
|---|---|
| Publication: | IABSE Symposium, Nantes 2018: Tomorrow's Megastructures |
| Publisher: | International Association for Bridge and Structural Engineering (IABSE) |
| Additional Information: | The copyright for this article belongs to the International Association for Bridge and Structural Engineering (IABSE). |
| Keywords: | Anchors; Concrete beams and girders; Creep; Shrinkage; Tall buildings; Uncertainty analysis, High rise building; Include a list of not more than 10 keywords; Posttensioning; Slabs; Walls, Parameter estimation |
| Department/Centre: | Division of Mechanical Sciences > Civil Engineering |
| Date Deposited: | 19 Aug 2022 04:53 |
| Last Modified: | 19 Aug 2022 04:53 |
| URI: | https://eprints.iisc.ac.in/id/eprint/75970 |
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