【摘要】 采用 1∶2 5模型对无粘结预应力混凝土板柱结构悬挑板进行了系统的试验研究 ,结合理论分析 ,得到了悬挑方向弹性内力分布规律、开裂荷载及开裂弯矩的修正计算方法、裂缝开展过程中塑性内力重分布情况、悬挑板破坏时预应力增量、横向预应力配筋方式等。更多还原

【Abstract】 Systematic experiment and research are carried out with the 1∶2 5 model of unbonded prestressed concrete cantilever of flat plate.With the theory analysis,the elastic moments distribution,cracking load,modified equation of crack moment,plastic moments redistribution during cracking,stress increase of unbonded prestressed steel at failure and design method of cross direction are obtained.更多还原