论文部分内容阅读
钢筋混凝土撑架连续板桥空间结构分析模型是采用三维有限梁单元离散实桥结构,以节点联结各单元组成。使用线性静动力有限元结构分析通用程序 SAPIV 直接输入节点坐标、单元的材料特性和截面特性。根据基础变位和支承情况确定合理的边界条件,一次输出不同荷载位置下的计算结果,其中包括节点位移值、单元内力值和反力值等。荷载下的竖向位移分析值与试验桥实测值作了比较,符合程度良好;分析内力值较好地反映了这种桥型的空间受力性能,
The analysis model of the spatial structure of the continuous slab of reinforced concrete bracing consists of three-dimensional finite beam elements and discrete real bridge structures, which are connected by nodes. Using the linear static-dynamic finite element structural analysis general program SAPIV, enter the node coordinates, material properties and cross-section properties of the element directly. According to the basic displacement and bearing conditions to determine the reasonable boundary conditions, the output of a load at different locations of the calculation results, including the node displacement, the unit of internal force and reaction force values. The vertical displacement analysis value under load is compared with the measured value of the test bridge, which is in good agreement. Analyzing the internal force value well reflects the space force performance of the bridge type,