摘要
在依据规范对混凝土块体进行配筋计算时,需要求得该块体的内力。而有些混凝土块体结构非常不规则,一般采用有限元软件进行计算。当采用有限元软件ANSYS对复杂结构进行分析时,需要采用实体单元。而ANSYS软件不能直接输出实体单元的内力图,需要进行二次开发。介绍了力学中将应力转为内力的计算原理,并应用于ANSYS二次开发中求解实体单元的内力。结合实际工程,求出了实体单元的弯矩图和扭矩图。结果表明,此求解实体单元内力图程序具有很好的适用性和通用性,可以应用于ANSYS分析港口工程中。
Internal force of a concrete block should be calculated when reinforcing of the block is calculated according to concrete code.However,because some concrete blocks are irregular,generally they are calculated by FEM software.When complicated solid structure is analyzed by ANSYS software,the internal forces of solid elements can＇t be achieved directly,so ANSYS should be developed secondly.This paper introduces the calculation theories which transfer stresses to internal forces and which are applied to the internal forces calculation of solid elements in ANSYS secondary development.This paper combines an actual engineering,the moment diagrams and torque diagrams are achieved,and the results indicate that the internal force progress developed is of applicability and commonality for solid element,therefore the progress can be applied to ANSYS for the analysis of harbor engineering.
出处
《水运工程》
北大核心
2011年第3期81-85,共5页
Port & Waterway Engineering
关键词
实体单元
二次开发
弯矩
扭矩
港口工程
solid element
secondary development
moment diagram
torque diagram
harbor engineering
