prestressed concrete bar

Finite element model of Prestressed concrete beam was created according to the kinematic model of beam compression bar, then the frequencies and modals of test beam were calculated by it.

论文中按照梁式压杆两端承受压力的动力模型建立了预应力混凝土梁的有限元计算模型，进行了试验梁的频率和振型的计算。

In order to solve the problem that the internal force of statically indeterminate prestressed and reinforced concrete bar system structures is difficut to determine when the structures come to the non-elastic state, a simple analysis method of experimental structures' internal force-sectioned dropping rigidity method is brought forward.

针对预应力混凝土和钢筋混凝土超静定杆系结构试验中进入非弹性状态后的结构内力难以准确测定的事实，本文提出了一种用于试验结构内力分析的简化方法&分段降刚度法。

The Construction Technology of 21M Span Pretensioning Prestressed Concrete Arched Roof Bar

21M跨先张法预应力砼屋面拱板施工工艺

The paper discusses the application of beret truss bearers in prestressed concrete process tie bar arch bridge construction after mechanical calculation.

通过力学验算，初步探讨组合式贝雷桁架片托架在预应力砼系杆拱桥梁施工中的应用。

Stress distribution laws of concrete nodes of beam tension face and CFRP nodes and load-stress of reinforcing bar and CFRP sheets are analyzed for beams strengthened with prestressed CFRP sheets.

分析了预应力碳纤维布加固梁中受拉底面混凝土和碳纤维布节点的应力分布规律、以及钢筋与碳纤维布的荷载-应力关系。