非对称T形截面型钢混凝土异形柱极限承载力的研究

An investigation of unsymmetrical T-cross section trussed special-shaped steel reinforced concrete column's load capacity

利用ANSYS有限元程序,对非对称T形截面桁架式型钢混凝土异形柱进行分析,研究桁架式型钢混凝土异形柱中型钢与混凝土的协同工作能力;混凝土强度等级及偏心距对桁架式型钢混凝土异形柱极限承载力的影响.分析结果表明:桁架式型钢混凝土异形柱中,型钢与混凝土能很好地协同工作;荷载偏心距越小,混凝土强度等级对异形柱极限承载力的影响越大;加载点离截面力学中心越近,异形柱的极限承载力越大,加载点偏心距对异形柱极限承载力的影响也越大.

Unsymmetrical T-cross section trussed special-shaped steel reinforced concrete column was analyzed by ANSYS, in order to investigate the synergistic effect of shape steel and concrete. Both of concrete strength grade and different eccentric loads affect ultimate bearing capacity. By investigation and comparison, shaped-steel and concrete can cooperate in harmony; if loading eccentricity is fewer, ultimate bearing capacity is influenced by concrete strength oading point is closer to mechanical center of the section, ultimate bearing capac grade more if ity of column is arger, and the more ultimate bearing capacity is influenced on by loading eccentricity.