scholarly journals Influence of Global Warming on the RC Structures and Durability Monitoring in Civil Engineering

10.5772/25249 ◽  
2011 ◽  
Author(s):  
Guofu Qiao ◽  
Tiejun Liu ◽  
Guodong Sun ◽  
Yi Hong ◽  
Baoguo Han ◽  
...  
Keyword(s):  
Global Warming ◽  
Civil Engineering ◽  
Rc Structures

Structural Non-Linear Models and Simulation Techniques

2016 ◽  
pp. 540-584
Author(s):  
Jorge M. Delgado ◽  
Antonio Abel R. Henriques ◽  
Raimundo M. Delgado
Keyword(s):  
Computational Models ◽  
Linear Models ◽  
Civil Engineering ◽  
Numerical Models ◽  
Probabilistic Approach ◽  
Latin Hypercube Sampling ◽  
Computational Time ◽  
Rc Structures ◽  
Simulation Techniques ◽  
Non Linear

Advances in computer technology allow nowadays the use of powerful computational models to describe the non-linear structural behavior of reinforced concrete (RC) structures. However their utilization for structural analysis and design is not so easy to be combined with the partial safety factors criteria presented in civil engineering international codes. Trying to minimize this type of difficulties, it is proposed a method for safety verification of RC structures based on a probabilistic approach. This method consists in the application of non-linear structural numerical models and simulation methods. In order to reduce computational time consuming the Latin Hypercube sampling method was adopted, providing a constrained sampling scheme instead of general random sampling like Monte Carlo method. The proposed methodology permits to calculate the probability of failure of RC structures, to evaluate the accuracy of any design criteria and, in particular, the accuracy of simplified structural design rules, like those proposed in civil engineering codes.

scholarly journals Influence of global warming on durability of corroding RC structures: A probabilistic approach

2013 ◽  
Vol 51 ◽  
pp. 259-266 ◽  
Author(s):  
Emilio Bastidas-Arteaga ◽  
Franck Schoefs ◽  
Mark G. Stewart ◽  
Xiaoming Wang
Keyword(s):  
Global Warming ◽  
Probabilistic Approach ◽  
Rc Structures

scholarly journals Possibilities of Increasing Effectiveness of RC Structure Strengthening with FRP Materials

Materials ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1387
Author(s):  
Wit Derkowski ◽  
Rafał Walczak
Keyword(s):  
Composite Laminates ◽  
Civil Engineering ◽  
Adhesive Layer ◽  
Epoxy Adhesive ◽  
Building Structures ◽  
Complex Behaviour ◽  
Rc Structures ◽  
Flexural Strengthening ◽  
Reinforced Polymer ◽  
Fibre Reinforced Polymer

Modern composite materials based on non-metallic continuous fibres are increasingly used in civil engineering to strengthen building structures. In the strengthening of reinforced concrete (RC) structures, the utilisation of externally bonded fibre-reinforced polymer (FRP) composites is only up to 35% because of the pilling-off failure mechanism. This problem can be solved using pre-tensioned composite laminates. Due to more complex behaviour, the strengthening of structures by means of prestressing technology needs a careful design approach and a full understanding of the behaviour of both the materials and elements. The advantages and risks of the presented technology, which may determine the success of the entire project, will be highlighted in the paper. The possibility of using a flexible adhesive layer in carbon fibre reinforced polymer (CFRP) strengthening applications for flexural strengthening of RC elements, as an innovative solution in civil engineering, will also be presented. Parallel introduction of the flexible adhesive layer (made of polyurethane masses) and a traditional epoxy adhesive layer in one strengthening system was investigated in the laboratory tests. This solution was used for the repair and protection of a previously damaged RC beam against brittle failure.

scholarly journals Effects of climate variations and global warming on the durability of RC structures subjected to carbonation

2014 ◽  
Vol 31 (2) ◽  
pp. 153-164 ◽  
Author(s):  
Thomas de Larrard ◽  
Emilio Bastidas-Arteaga ◽  
Frédéric Duprat ◽  
Franck Schoefs
Keyword(s):  
Global Warming ◽  
Climate Variations ◽  
Rc Structures

scholarly journals Structural Non-Linear Models and Simulation Techniques

2016 ◽  
pp. 369-406
Author(s):  
Jorge M. Delgado ◽  
Antonio Abel R. Henriques ◽  
Raimundo M. Delgado
Keyword(s):  
Computational Models ◽  
Linear Models ◽  
Civil Engineering ◽  
Numerical Models ◽  
Probabilistic Approach ◽  
Latin Hypercube Sampling ◽  
Computational Time ◽  
Rc Structures ◽  
Simulation Techniques ◽  
Non Linear

Advances in computer technology allow nowadays the use of powerful computational models to describe the non-linear structural behavior of reinforced concrete (RC) structures. However their utilization for structural analysis and design is not so easy to be combined with the partial safety factors criteria presented in civil engineering international codes. Trying to minimize this type of difficulties, it is proposed a method for safety verification of RC structures based on a probabilistic approach. This method consists in the application of non-linear structural numerical models and simulation methods. In order to reduce computational time consuming the Latin Hypercube sampling method was adopted, providing a constrained sampling scheme instead of general random sampling like Monte Carlo method. The proposed methodology permits to calculate the probability of failure of RC structures, to evaluate the accuracy of any design criteria and, in particular, the accuracy of simplified structural design rules, like those proposed in civil engineering codes.

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