Investigation of reinforced concrete shells with local actions

1978 ◽  
Vol 14 (1) ◽  
pp. 50-54
Author(s):  
V. Ya. Pavilainen ◽  
V. A. Rumyantsev ◽  
L. A. Korobov ◽  
I. M. Speranskii
Keyword(s):  
Reinforced Concrete ◽  
Concrete Shells

scholarly journals Use of information technologies for energetic portrait construction of cylindrical reinforced concrete shells

2017 ◽  
Vol 116 ◽  
pp. 02017 ◽  
Author(s):  
Oleg Kalmykov ◽  
Ludmila Gaponova ◽  
Petro Reznik ◽  
Sergey Grebenchuk
Keyword(s):  
Reinforced Concrete ◽  
Information Technologies ◽  
Concrete Shells

scholarly journals An Analytical Failure Envelope for the Design of Textile Reinforced Concrete Shells

Structures ◽  
2018 ◽  
Vol 15 ◽  
pp. 56-65 ◽  
Author(s):  
Will Hawkins ◽  
John Orr ◽  
Tim Ibell ◽  
Paul Shepherd
Keyword(s):  
Reinforced Concrete ◽  
Failure Envelope ◽  
Textile Reinforced Concrete ◽  
Concrete Shells

An experimental study of the stresses in a shell of revolution with geometrical imperfections and cracks

1981 ◽  
Vol 16 (1) ◽  
pp. 59-65 ◽  
Author(s):  
L A Godoy ◽  
J G A Croll ◽  
K O Kemp ◽  
J F Jackson
Keyword(s):  
Reinforced Concrete ◽  
Complete Loss ◽  
Geometric Imperfections ◽  
Shell Models ◽  
Wide Range ◽  
Geometrical Imperfections ◽  
Concrete Shell ◽  
Concrete Shells ◽  
Doubly Curved ◽  
Hoop Stresses

Interest in the effects of geometrical imperfections and cracks on the stresses in reinforced concrete shells has been stimulated by the failure of the Ardeer cooling tower. Due to the extreme difficulties of testing doubly curved, reinforced concrete shell models, a programme of experiments on an axially loaded aluminium cylinder containing controlled axisymmetric geometric imperfections has been carried out to show the nature of the stress distributions that occur when meridional cracking passes across the imperfection. Results over a wide range of crack configurations, for which the discrete cracks have both partial and complete loss of stiffness in the circumferential direction, are found to be in close agreement with predictions from an appropriate finite element numerical modelling. It is shown how the concentration of membrane hoop stresses associated with the imperfections are redistributed to cause substantial changes in meridional bending and membrane stresses only when a complete loss of stiffness occurs at the cracks. With the thin reinforced concrete shells used in cooling towers having only limited flexural capacity, the combination of geometric imperfections and cracks could, as a consequence, readily lead to failure once yield or fracture of the hoop reinforcement occurs.

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