> For the complete documentation index, see [llms.txt](https://docs.openbrim.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.openbrim.org/templates/concrete-u-girder-bridge-workflow/construction-cug/superstructure-construction-cug/diaphragm-construction-cug.md).

# Diaphragm Construction \[CUG]

## Diaphragm Construction

**Stage:** Choose the stage at which you intend to construct the diaphragms.

**Internal Diaphragms:** Choose the internal diaphragms that you intend to construct.

**Internal Diaphragms Construction Method \[Weight only]:**

* Weight only: With the weight-only construction method, the self-weight of the diaphragm will be applied to the closest constructed nodes.
* Stiffness only: With the stiffness-only construction method, the stiffness of the diaphragm will be activated by constructing the analytical elements without applying its self-weight.
* Weight and Stiffness: With the weight and stiffness construction method, both the stiffness of the diaphragm and its self-weight will be activated by constructing the analytical elements.

**External Diaphragms:** Choose the external diaphragms that you intend to construct.

**External Diaphragms Construction Method \[Weight only/Stiffness only/Weight and Stiffness]:**

* Weight only: With the weight-only construction method, the self-weight of the diaphragm will be applied to the closest constructed nodes.
* Stiffness only: With the stiffness-only construction method, the stiffness of the diaphragm will be activated by constructing the analytical elements without applying its self-weight.
* Weight and Stiffness: With the weight and stiffness construction method, both the stiffness of the diaphragm and its self-weight will be activated by constructing the analytical elements.

**Continuity Diaphragms:** Choose the continuity diaphragms that you intend to construct.

**Continuity Diaphragms Construction Method \[Weight only/Stiffness only/Weight and Stiffness]:**

* Weight only: With the weight-only construction method, the self-weight of the diaphragm will be applied to the closest constructed nodes.
* Stiffness only: With the stiffness-only construction method, the stiffness of the diaphragm will be activated by constructing the analytical elements without applying its self-weight.
* Weight and Stiffness: With the weight and stiffness construction method, both the stiffness of the diaphragm and its self-weight will be activated by constructing the analytical elements.

**End Diaphragms:** Choose the end diaphragms that you intend to construct.

**End Diaphragms Construction Method** **\[Weight only/Stiffness only/Weight and Stiffness]:**

* Weight only: With the weight-only construction method, the self-weight of the diaphragm will be applied to the closest constructed nodes.
* Stiffness only: With the stiffness-only construction method, the stiffness of the diaphragm will be activated by constructing the analytical elements without applying its self-weight.
* Weight and Stiffness: With the weight and stiffness construction method, both the stiffness of the diaphragm and its self-weight will be activated by constructing the analytical elements.


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