【摘要】 通过对9根钢板笼混凝土组合柱和1根钢筋混凝土柱的偏压试验,研究钢板笼混凝土组合柱偏压的基本力学性能,并分析不同参数对钢板笼混凝土组合柱偏压力学性能的影响.结果表明:钢板笼混凝土组合柱的偏压破坏特征与钢筋混凝土柱基本相同,试件中部符合平截面假定,横向曲线近似正弦半波曲线;钢板笼混凝土组合柱与钢筋混凝土柱相比,耗能可提高110%,延性可提高48%;偏心距是影响钢板笼混凝土组合柱偏压承载力的主要因素,长细比在4~10范围内对承载力影响不大;随着含钢率增大,试件的承载力增大,但提高的幅度逐渐减小.更多还原

【Abstract】 The mechanical properties of prefabricated cage system(PCS)composite column under eccentric compression were experimentally studied by 9PCS composite columns and 1ordinary reinforced concrete(RC)column,the influence of different parameters was also discussed.The result indicates that the form of destruction of PCS composite column is similar to RC column;the plane section assumption is valid in the middle part of the column;the deflection of column is close to half-wave sinusoid;PCS composite column has about 110% higher capacity of energy dissipation and 48% higher ductility than RC column.Eccentricity is the main factor of bearing capacity of PCS composite columns.Slenderness ratio in the range of 4-10 has little effect on the bearing capacity.The bearing capacity of the specimen increases with the increase of the steel ratio,but the increase ratio gradually reduces.更多还原