OBJECTIVES AND INDEX.

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OBJECTIVES


This work seeks to make readers aware of a very unfortunate event that occurred in Mexico a few years ago, specifically in the year 2021: The collapse of line 12 of the Mexico City subway. With this we seek that the audience understands the true importance of a well-built bridge. In order to develop our main theme: the collapse of the Mexico City subway, we are going to provide a small context that will help us understand what a bridge is, the materials that compose it, its functions or those characteristics that it must have. With all this research that we carry out, we seek to give a wide field of knowledge to readers, where we relate all the topics to understand our initial problem.


INDEX



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  1. Introduction

  • History of Bridges.


  1. What is a bridge?


  • Necessary characteristics of a bridge.

  • Function of a bridge.


  1. What materials are used in the construction of a bridge?


  • Multifunctional properties of shape memory materials


  1. Collapse of Line 12 of Mexico City Metro.


  • What happened?

  • What do the investigations and expert reports say?

  • Who participated in the construction?

  • Had other events like this happened before?


     5.    Conclusions and Bibliographic References


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