Abstract: The Steel-Reinforced Concrete Combined entire shearwall Structure, Steel-Reinforced Concrete Combined t-shaped section shearwall Structure and other Steel-Reinforced Concrete Structure of High Voltage Side Valve Hall in ±800 kV Converter Station are compared by seismic response spectrum analysis, elastic time-history analysis and elastic-plastic time-history analysis. The results show that longitudinal section firewall with T seismic wall hybrid structure whose transverse firewall disconnected to Valve Hall has high bearing capacity and good deformation in elastic and elastic-plastic stage which meets standard requirements. The torsion effects of other three structural models are remarkable and sensitive to disasters including earthquakes, especially strong earthquake which easily leads to brittle structure failure or collapse. The analysis results can provide technical guidance for structural selection of future UHVDC Converter Station Valve Hall.

Key words: valve hall, seismic design, the torsional effect of the structure, response spectrum analysis, elastic time-history analysis, elastic-plastic time-history analysis