##  [Influence Line](/index.php/influence-line) 

  ##  [Influence Line](https://engineering.quantumdictionary.io/influence-line-0) 

  

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**Engineering & Applied Technologies Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A spatial function (graph) that gives the value of a chosen structural response quantity at a specific point as a unit moving load traverses a structure; for linear systems the response to arbitrary sets of moving loads is obtained by superposing the unit‑load influence line scaled by each load magnitude.