Proposal on Story Drift Limit Based on Axial Behavior of Column under Seismic Loads

by Takanori Sato, Shimizu Corp, Tokyo, Japan,
Kazuo Suzuki, Shimizu Corp, Tokyo, Japan,

Document Type: Proceeding Paper

Part of: Composite Construction in Steel and Concrete II


The main function of columns primarily is to support axial loads both under and after repeated lateral loading from earthquakes. A definition of the story drift limit in any structural type should be provided based on a unified concept. When columns are subjected to seismic loads, column efficiency is reduced by crushing of concrete or local buckling of steel, increasing axial deformation and leading to collapse. A proposal on story drift limit is therefore described in this paper based on physical phenomena in common for all structural types.

Subject Headings: Seismic loads | Failure loads | Lateral loads | Drift (structural) | Columns | Seismic tests | Axial loads | Repeated loads

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