# Performance‐based seismic retrofitting of frame structures using negative stiffness devices and fluid viscous dampers via optimization

> Research article (Earthquake Engineering & Structural Dynamics, 2021) · cited 29× · AI/ML

**Wikidata**: [openalex:W3167809373](https://www.wikidata.org/wiki/openalex:W3167809373)  
**Source**: https://4ort.xyz/entity/performancebased-seismic-retrofitting-of-frame-structures-using-negative-stiffness-devices-and-fluid-viscous-dampers-via