Seismic Action Mechanism and Multi modal Reproducing Method of Architectural Curtain Wall

Abstract:

The seismic action mechanism of the architectural glass curtain wall, including floor acceleration and inter story drift from main structure, was analyzed. Correspondently, a multi modal loading test method with shaking table was proposed to reproduce the multi dimensional seismic actions on the curtain wall simultaneously. To verify its validity and feasibility, an experiment, using a designed multi modal loading device, was conducted to study the seismic performance of zonal hanging glass curtain wall on a complex high rise building, which allowed for the synchronous realization of three direction dynamic acceleration time history actions, step by step loading of horizontal drifts and internal forces of steel sag rods. Finally, the hybrid simulation for the seismic performance of glass curtain walls was discussed.

Key words:architectural glass curtain walls; multi dimensional seismic actions; multi modal loading; seismic actions reproduce; shaking table test