预应力混凝土简支梁静力及动力性能有限元分析研究

Finite Element Analysis and Research of the Static and Dynamic Properties of Pre-stress Simply-supported Beam

采用ANSYS中APDL语言进行参数化设计,计算了简支梁在自重作用下的变形与应力,并进行了模态分析.考虑了梁的静力性能(挠度)和动力性能(固有频率)受到预应力大小、截面形式、预应力筋的布置形式、预应力筋的数量以及预应力筋分布形式不同的影响.

The ANSYS parametric design language （APDL） is used for the calculation of deformation and stress because of its gravity. Consideration of beam static performance （deflection） and dynamic performance （natural frequency） under the effects by the different of the cross section form, the ar- rangement of prestressed reinforcement, prestressed tendons form and the number of prestressed rein- forcement, the paper gives some advice to the design of the prestressed concrete structure and some reference of the further study on prestressing loss.