体外预应力与碳纤维布加固连续梁有限元分析简

本文借助ANSYS有限元分析软件对联合加固的钢筋混凝土梁进行受力阶段的非线性有限元分析.根据试验相关数据,确定所需要的基本计算参数进行有限元模拟,根据经验取得其他所需参数.根据制作的试验梁的几何尺寸、粘贴碳纤维布粘贴方式,以及体外预应力钢绞线布置型式等因素建立有限元分析模型;根据多次验算结果进行调整,最终确定有限元模拟方案.通过有限元模拟在正常使用状态下的联合加固试验梁的结构变形、混凝土的裂缝形态及应力、应变等情况,可以进一步掌握联合加固混凝土梁的受力情况.

Finite Element Analysis of the Exterally Prestressed CFRP Continous Beam

Based on the ANSYS software to test of the reintbrced beams bearing phase of the nonlinear finite element analysis. On the basis of test data, determine the part of finite element simulation need parameters and other parame- ters can be obtained through experience. This paper completely according to the test beam size, in vitro prestressed steel wires arrangement situation and carbon fiber cloth paste site conditions to establish model, and many times to adjust check, and finally determine the numerical scheme. Through the software calculation results can understand test beam in the normal operating condition of the fracture morphology, structure deformation and stress and strain of concrete, the joint reinforced concrete beam deformation property have further understanding.