| Title |
Shrinkage effect on cracking resistance of flexural reinforced concrete members / |
| Authors |
Balevičius, Robertas ; Augonis, Mindaugas ; Bistrickaitė, Rėda ; Diliūnas, Saulius |
| DOI |
10.5755/j01.mech.24.1.17901 |
| Full Text |
|
| Is Part of |
Mechanika.. Kaunas : KTU. 2018, vol. 24, no. 1, p. 11-18.. ISSN 1392-1207. eISSN 2029-6983 |
| Keywords [eng] |
reinforced concrete ; concrete creep ; ageing co-efficient ; time-dependent stress strain state ; uncracked cross-sections |
| Abstract [eng] |
A time-dependent stress-strain state of reinforced concrete elements induced by gradually developing shrink-age of concrete is analysed. Depending on environmental conditions the early age concrete shrinkage can produce a significant tensile stress in concrete that reduces the crack-ing resistance of the cross-section. To analyse this phenom-enon a numerical model is proposed. For the exact analytical prediction of the time-dependent stress-strain state induced by the restrained shrinkage, the key parameter is the coeffi-cient of aging which is strongly dependent on the time-evo-lution of tensile stress of concrete and modulus of elasticity. The values of this coefficient obtained in the current analy-sis are suitable for the proper evaluation of the reduction of cracking resistance of the cross-section induced by re-strained shrinkage evolving during concrete hardening pro-cess in a period prior to element loading. |
| Published |
Kaunas : KTU |
| Type |
Journal article |
| Language |
English |
| Publication date |
2018 |
| CC license |
|
