Improvements to the Eurocode 2 shrinkage model for concrete using a large experimental database
Shrinkage plays an important, sometimes crucial, role in the design of many types of concrete structures as well as in their behaviour after construction. However, the uncontrolled strains are often larger than the expected values. As a matter of fact, there is as yet no perfectly satisfactory physi...
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| Veröffentlicht in: | Structural concrete : journal of the FIB 2012-09, Vol.13 (3), p.174-181 |
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| container_title | Structural concrete : journal of the FIB |
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| creator | Raphael, Wassim Faddoul, Rafic Geara, Fadi Chateauneuf, Alaa |
| description | Shrinkage plays an important, sometimes crucial, role in the design of many types of concrete structures as well as in their behaviour after construction. However, the uncontrolled strains are often larger than the expected values. As a matter of fact, there is as yet no perfectly satisfactory physical explanation for shrinkage. In this work, a large database has been set up for shrinkage testing performed by several research centres in Europe. On the basis of the statistical analysis of this database and by observing real structural behaviour, it becomes possible to investigate the current codes of practice regarding the computation of time‐dependent shrinkage strains. As comparison with experimental tests has shown that predictions are often inaccurate, a correction factor is proposed in this work to improve the European Code, Eurocode 2, and lead to more satisfactory results. |
| doi_str_mv | 10.1002/suco.201100029 |
| format | Article |
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However, the uncontrolled strains are often larger than the expected values. As a matter of fact, there is as yet no perfectly satisfactory physical explanation for shrinkage. In this work, a large database has been set up for shrinkage testing performed by several research centres in Europe. On the basis of the statistical analysis of this database and by observing real structural behaviour, it becomes possible to investigate the current codes of practice regarding the computation of time‐dependent shrinkage strains. As comparison with experimental tests has shown that predictions are often inaccurate, a correction factor is proposed in this work to improve the European Code, Eurocode 2, and lead to more satisfactory results.</description><identifier>ISSN: 1464-4177</identifier><identifier>EISSN: 1751-7648</identifier><identifier>DOI: 10.1002/suco.201100029</identifier><language>eng</language><publisher>Berlin: WILEY-VCH Verlag</publisher><subject>analysis and design methods ; Applied sciences ; building materials / construction materials ; Buildings. Public works ; Codes of Practice ; concrete ; Concrete structures ; Concretes ; Concretes. Mortars. Grouts ; correction factor ; Design engineering ; Eurocode ; Eurocode 2 ; Exact sciences and technology ; experimental tests ; General (composition, classification, performance, standards, patents, etc.) ; Materials ; Regulation. 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However, the uncontrolled strains are often larger than the expected values. As a matter of fact, there is as yet no perfectly satisfactory physical explanation for shrinkage. In this work, a large database has been set up for shrinkage testing performed by several research centres in Europe. On the basis of the statistical analysis of this database and by observing real structural behaviour, it becomes possible to investigate the current codes of practice regarding the computation of time‐dependent shrinkage strains. As comparison with experimental tests has shown that predictions are often inaccurate, a correction factor is proposed in this work to improve the European Code, Eurocode 2, and lead to more satisfactory results.</description><subject>analysis and design methods</subject><subject>Applied sciences</subject><subject>building materials / construction materials</subject><subject>Buildings. Public works</subject><subject>Codes of Practice</subject><subject>concrete</subject><subject>Concrete structures</subject><subject>Concretes</subject><subject>Concretes. Mortars. Grouts</subject><subject>correction factor</subject><subject>Design engineering</subject><subject>Eurocode</subject><subject>Eurocode 2</subject><subject>Exact sciences and technology</subject><subject>experimental tests</subject><subject>General (composition, classification, performance, standards, patents, etc.)</subject><subject>Materials</subject><subject>Regulation. 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Public works</topic><topic>Codes of Practice</topic><topic>concrete</topic><topic>Concrete structures</topic><topic>Concretes</topic><topic>Concretes. Mortars. Grouts</topic><topic>correction factor</topic><topic>Design engineering</topic><topic>Eurocode</topic><topic>Eurocode 2</topic><topic>Exact sciences and technology</topic><topic>experimental tests</topic><topic>General (composition, classification, performance, standards, patents, etc.)</topic><topic>Materials</topic><topic>Regulation. 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| subjects | analysis and design methods Applied sciences building materials / construction materials Buildings. Public works Codes of Practice concrete Concrete structures Concretes Concretes. Mortars. Grouts correction factor Design engineering Eurocode Eurocode 2 Exact sciences and technology experimental tests General (composition, classification, performance, standards, patents, etc.) Materials Regulation. Standardization Shrinkage shrinkage strain Statistical analysis Strain |
| title | Improvements to the Eurocode 2 shrinkage model for concrete using a large experimental database |
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