- Tytuł:
- Comparison of analytical methods for estimation of early-age thermal-shrinkage stresses in RC walls
- Autorzy:
-
Klemczak, B.
Knoppik-Wróbel, A. - Powiązania:
- https://bibliotekanauki.pl/articles/230455.pdf
- Data publikacji:
- 2013
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
ściana żelbetowa
naprężenie termiczno-skurczowe
stopień ograniczenia
model analityczny
RC wall
thermal-shrinkage stress
degree of restraint
analytical model - Opis:
- The volume changes caused by coupled temperature and moisture variations in early-age concrete elements lead to formation of stresses. If a restraint exists along the contact surface of mature concrete against which a new concrete element has been cast, generated stresses are mostly of a restraint origin. In engineering practice a wide range of externally restrained concrete elements can be distinguished such as tank walls or bridge abutments cast against an old set foundation, in which early-age cracking may endanger their durability or functionality. Therefore, for years methods were being developed to predict early-age stresses and cracking risk of externally restrained concrete elements subjected to early-age thermal-moisture effects. The paper presents the comparative study of the most recognised analytical approaches: the method proposed in EC2, the method proposed by ACI Committee 207 and the method developed at the Luleå University of Technology.
- Źródło:
-
Archives of Civil Engineering; 2013, 59, 1; 97-117
1230-2945 - Pojawia się w:
- Archives of Civil Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł