# Directionality effect in the seismic fragility of long-span supporting frames in ultrahigh-voltage substation

> Research article (Soil Dynamics and Earthquake Engineering, 2022) · cited 13× · AI/ML

**Wikidata**: [openalex:W4229032804](https://www.wikidata.org/wiki/openalex:W4229032804)  
**Source**: https://4ort.xyz/entity/directionality-effect-in-the-seismic-fragility-of-long-span-supporting-frames-in-ultrahigh-voltage-substation