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Analysis of Mixed Steel and Concrete Structures for Tunnel Arches
   
Modular Buildings and New Building Systems
   
Foundation Structures
 
    
    
 
   
  Analysis of Mixed Steel and Concrete Structures for Tunnel Arches
   
  Within the field of civil engineering, besides traditional structures, whether these be of steel, concrete or mixed, problems may arise in which a more detailed simulation is needed.

In the case presented here, not only is the entrance arch to the tunnel verified structurally, but also the process of burying said arch is simulated. On the basis of a prior model, the ground pressures are determined in the different phases of the process. These pressures are translated to a detailed model of the arch, which by means of linear approximations determines which zones of concrete are effective and which work in a cracked situation, thus not contributing to the strength of the whole.

This analysis took into account the presence of steel rebars, contacts in the interfaces between ground and arch, etc..
   
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