The application of grillage analytical method in the analysis of the upper structure of concrete skew bridge;
梁格法在混凝土斜桥上部结构分析中的应用
Structure analysis for Y-shape Bridge based on grillage theory;
基于梁格理论的人字形桥梁结构分析
Research method: based on grillage theory for the skew bridge of continuous girder to calculate and simplify about the structure, and make use of just the principle of rigidity equivalent proceeds analysis to the original construction and makes use of the analysis method.
研究方法:应用梁格理论对某斜交T型宽实体连续板梁桥进行结构计算简化,利用刚度等效的原则对原结构进行结构模拟以及运用有限元的分析方法对结构进行离散,同时利用通用有限元程序软件SAP2000对简化的粱格模型进行结构模拟分析。
Based on a special shaped single pylon cable-stayed bridge on the foundation of group piles, the program for FEM calculation is adopted for dispersion of the beam grillage system at the footing and for structural analysis and calculation of the group pile foundation.
以某异形独塔斜拉桥的群桩基础为背景,采用有限元计算程序,对承台进行梁格系的结构离散,对群桩基础进行结构分析计算,并将计算结果与传统的在刚性承台假设下的计算作比较。
The grillage method is an analytical method of space structure which can simulate the original structure well,and it owns characteristics of clear basic conception and low computing cost.
梁格法是一种能较好地模拟原结构的空间结构分析方法,它具有基本概念清晰、计算费用低等特点,因此常应用于宽、斜、弯梁桥设计中。
Although grillage method is an effective method of analyzing bridge deck,it has not been widely used on computer calculation of bridges for the restriction of traditional grillage model and the complexity of meshing and element stiffness computation.
梁格法是桥梁结构空间分析的一种有效方法,但由于传统梁格法受模型及其网格划分和单元刚度计算高复杂性的条件限制,在桥梁结构电算方面未得到广泛应用。
The grillage method is an analytical method of space structure which can provide some data about static deflection and strain of the primary control section,to satisfy the box-girder bridge static test requirements of theoretical calculations.
梁格法是一种能较好地模拟原结构的空间结构分析方法,它能得到主要控制断面的挠度、应变数据,以满足箱梁桥静载试验理论计算要求。
Based on the Muller-Breslau principle,a finite element method to kinematically analyze the internal force influence surface is established by combining a kinematical method with the finite element static method and using the superposition principle applied to little displacement for curved-bar grillage.
以米勒-布雷斯劳原理为基础,运用小变形的叠加原理,将曲杆梁格机动分析与有限元静力分析相结合,建立了曲杆梁格内力影响面分析的机动分析有限元法,该方法把内力影响面分析归结为求解在一个等效结点荷载作用下的梁格位移场,并推导了计入横向剪切变形影响的十二自由度空间曲梁单元等效结点荷载计算公式。