摘要
Abstract
To study the seismic performance of prestressed piers assembled with grouting sleeves under the coupling action of compression,bending,shear and torsion,three components,namely cast-in-place concrete(RC),grouting sleeve connection(GS)and grouting sleeve combined steel pipe(GSS),are designed in this paper.Through the coupling test of compression,bending,shear and torsion,the seismic performance of prestressed piers assembled with grouting sleeves is systematically analyzed.The results show that as the displacement of the pier top increases,the shear forces of different components first decrease,then increase,and then tend to level off.With the increase of displacement,the energy dissipation at bending resistance and the residual displacement of different components keep rising.In conclusion,GSS components have the strongest load-bearing performance and the best anti-deformation performance,and are recommended for application in physical engineering.关键词
灌浆套筒连接/延性/承载力/抗震性能Key words
Grouting sleeve connection/Ductility/Bearing capacity/Seismic performance分类
土木建筑
