梁柱线刚度比对预应力次弯矩的影响分析与研究

Beam stiffness ratio on the analysis and research of the effects of prestressing secondary moment

通过SAP2000有限元软件对5层24m大跨预应力结构进行内力分析并结合预应力度法进行主动控制与设计。针对预应力框架结构中次弯矩的不可忽视性,本文充分考虑了竖向等效荷载以及轴向变形产生的弯矩,从而全面分析预应力结构的受力特点,并且通过分析不同梁柱线刚度比对结构的影响,为预应力结构设计提供参考。

Analyze the internal force of 24-metre large-span prestressed structures of a five-storey by SAP2000 finite element software and realize the active control and design by prestress degree method.For bending moment of prestressed frame structure cannot be ignored,duly considered the bending moment made by a moment load vertical equivalent and the axial deformation,resulting in an overall analysis of mechanical characteristics of prestressed structures and by analyzing the effects of different stiffness ratio of beam-column connections of structure,provide reference for Prestressed structure design.