新型装配整体式短柱抗震性能试验研究

Test research on seismic performance of new-type assembled monolithic short columns

将采用螺栓和栓筋两种连接方式的装配整体式钢板箍短柱的抗震试验结果与普通钢筋混凝土短柱和高强螺旋箍现浇钢筋混凝土短柱的抗震性能进行了对比研究,结果表明,螺栓和栓筋这两种连接方式的装配整体式短柱的抗震性能均优于普通钢筋混凝土短柱而与高强螺旋箍现浇钢筋混凝土短柱的抗震性能相当,这两种节点构造连接可靠、安全,可以用于实际工程中。对这两种连接方式的优异性进行了对比研究,表明低剪跨比的螺栓连接短柱具有更优的抗震性能。

The seismic performance of two types＇ assembled monolithic short column encased by steel plate hoop and jointed by bolt or bolt bar was separately contrasted to that of ordinary reinforced concrete short columns and rein- forced concrete short columns cast in situ and equipped with high strength spiral hoop. The results show that the seismic performance of two types＇ assembled monolithic short column is superior to that of ordinary reinforced con- crete and equivalent to that of reinforced concrete short column with high strength spiral hoop ; The two types of node structure connection are safe enough and can be used to practical engineering. In addition, the two types of con- necting methods were compared each other and the results suggest that the short column jointed by bolt with low shear span ratio has a better seismic performance .