Hosseinzadeh L. Investigating the effect of using Multi-Level Yielding Pipe Damper dampers in steel structures under earthquake force in the horizontal direction. jcer [Internet]. 2023 May 7 [cited 2023 Jun. 6];5(1):10-8. Available from: https://www.journals-researchers.com/ojs/index.php/jcer/article/view/77