Basic and drying creep of concrete

1969 ◽  
Vol 2 (2) ◽  
pp. 117-124 ◽  
Author(s):  
A. M. Neville ◽  
M. A. Ward ◽  
G. C. -S. Kwei
Keyword(s):  
1984 ◽  
Vol 14 (3) ◽  
pp. 329-338 ◽  
Author(s):  
R.L. Day ◽  
P. Cuffaro ◽  
J.M. Illston

1988 ◽  
Vol 11 (2) ◽  
pp. 113-120 ◽  
Author(s):  
Jenn‐Chuan Chern ◽  
Yeong‐Gee Wu ◽  
Hsing‐Cheng Chang
Keyword(s):  

1973 ◽  
Vol 3 (5) ◽  
pp. 633-644 ◽  
Author(s):  
A.K. Niyogi ◽  
P. Hsu ◽  
B.L. Meyers
Keyword(s):  

2017 ◽  
Vol 259 ◽  
pp. 158-163
Author(s):  
Lukáš Kadlec ◽  
Vladimír Křístek ◽  
Claus Peter Strobach

The effects of the external environment significantly affect the distribution of stress in concrete bridges. Diffusion of humidity and temperature fluctuations, as a result of the effects of the external environment, result in the emergence of a very complex state of stress and strain in the elements of concrete bridges and the creation of acceptable or unacceptable cracks. In order to predict these correctly, one must use a creep and shrinkage model that realistically describes the moisture diffusion process, which causes that the shrinkage and drying creep of the bulky parts of the box cross section are greatly delayed compared to the thin parts. This delay cannot be predicted with the classical approach, in which either the shrinkage strain and the creep coefficient (or compliance function) are considered as uniform throughout the cross section, or the thickness effect is simply described by a multiplicative factor on shrinkage strain. With full respect for these phenomena the bridge of a double T section segmental bridge is analyzed.


1974 ◽  
Vol 4 (5) ◽  
pp. 853-856 ◽  
Author(s):  
A.K. Niyogi ◽  
P. Hsu ◽  
B.L. Meyers ◽  
L.J. Parrott
Keyword(s):  

2013 ◽  
Vol 275-277 ◽  
pp. 2112-2119
Author(s):  
Ya Liang Chen

Drying creep of self-compacting concrete (SCC) has two different sources: microcracking and stress-induced shrinkage. Based on theory for pore water and microcracking theory of concrete, the model for drying creep caused by constant stress is derived from rheological equations. The proposed model is coupled with FEM analysis by recursive calculation, so that the creep caused by changing load can be calculated without considering stress history. Verification of the model is conducted through comparison with experimental result and Bazant’s empirical model. The comparing results validate the model for drying creep of SCC.


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