While Tekla Structures 2020 is a powerful software that offers a range of features for construction professionals, using a cracked version is not recommended. The risks associated with using a cracked version, including security vulnerabilities, lack of support and updates, and unreliable performance, outweigh any potential benefits.

The most straightforward way to use Tekla Structures is through purchasing a license or subscribing to their service. This can be done through the official Tekla or Trimble website.

If you're looking for free alternatives, there are several open-source software solutions for structural analysis and engineering that might meet your needs, such as:

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