# Pile Load \[TB]

Point loads on the pile’s top nodes can be applied to piles at the specified stage based on the definitions of the parameters listed below.

## Inputs

**Single Pile/Pile Layout \[Single Pile / Pile Layout]:** This parameter is required to specify whether the applied loads will be defined for a single pile or for a pile layout.

**Single Pile:** If the parameter *Single Pile/Pile Layout* is defined with the option *Single Pile*, this parameter can be used to further specify the single pile to which the load will be applied.

**Pile Layout:** If the parameter *Single Pile/Pile Layout* is defined with the option *Pile Layout*, this parameter can be used to specify the pile layout whose piles will have the load applied.

**Stage:** Select a stage to apply the load.

**Fx:** Force in the longitudinal direction along the PGL.

**Fy:** Force in the direction perpendicular to the PGL.

**Fz (Gravity):** Force in the vertical direction. A positive value indicates a load in the global -Z or gravity direction.

**Mx:** Moment in the longitudinal direction along the PGL.

**My:** Moment in the direction perpendicular to the PGL.

**Mz:** Moment in the vertical direction.

{% hint style="info" %}
Although **Fz** is applied in the direction of gravity (positive values for **Fz** will correspond to the downward direction, as with gravity), **Mz** will have a positive direction relative to the **+Z** axis or, in other words, in the upward direction.

**The Directions of Forces** The loads on the piles are applied based on the alignment's coordinate system for piles that are defined to have a section orientation of zero. For piles with a section orientation defined as a value other than zero, this orientation is taken into account for the applied force directions. Refer to the figures provided below for further clarification on the directions of positive forces. ![image-20250123-145929.png](https://openbrim.atlassian.net/wiki/download/attachments/2126020658/image-20250123-145929.png?api=v2) ![image-20250123-150144.png](https://openbrim.atlassian.net/wiki/download/attachments/2126020658/image-20250123-150144.png?api=v2) ![image-20250123-150535.png](https://openbrim.atlassian.net/wiki/download/attachments/2126020658/image-20250123-150535.png?api=v2) ![image-20250123-150829.png](https://openbrim.atlassian.net/wiki/download/attachments/2126020658/image-20250123-150829.png?api=v2)
{% endhint %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.openbrim.org/templates/truss-bridge-workflow/loading-tb/loads-tb/element-loads-tb/pile-load-tb.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
