空间网格结构施加等效节点荷载的ANSYS实现  

IMPLEMENTATION IN ANSYS OF APPLYING EQUIVALENT NODAL LOADS TO SPACE GRID STRUCTURE

作　　者：张乐弓[1] 乐风江[1] 宋艳生[2] 

机构地区：[1]新疆大学建筑工程学院,乌鲁木齐830047 [2]新疆大学建筑设计研究院,乌鲁木齐830008

出　　处：《钢结构》2012年第10期37-41,共5页Steel Construction

摘　　要：对荷载准确的计算是结构分析的关键环节,而通用有限元软件用于空间网格结构在进行均布荷载导算等效节点荷载的工作时,一般都存在一定的局限性,给分析工作带来不便。针对有限元软件ANSYS在对空间网格结构施加等效节点荷载时存在的问题,给出解决问题的思路以及在ANSYS软件中的实现方法和空间网格结构批量施加等效节点荷载的主要宏模块及宏流程,并利用ANSYS软件自带的APDL(ANSYS Parametric Design Language)参数化设计语言编写此宏命令,实现了在ANSYS中选择网格节点后,程序根据所选节点自动搜索网格、导算等效节点荷载等功能。Accurately applied load is the key to all analyses. However, there are some limitations to the analysis of this inconvenience generally on the issue that uniformly distributed load derived operators into equivalent nodal loads, when finite element analysis software is used for a space grid structure. First it was pointed out the problems that may encounter in ANSYS when applied the equivalent nodal loads to the space grid structure. And then given the problem-solving ideas and the practicable methods in ANSYS. For further, to implement batch application of the equivalent nodal loads to the space grid structure with the ideas and methods, macro command module and process were given. The preparation of this macro command was written by using APDL, ANSYS Parametric Design Language, that comes with ANSYS. With which the automatic search grid and the derivation of equivalent nodal loads and so on were realized in ANSYS.

关 键 词：空间网格结构 等效节点荷载 荷载导算 APDL 

分 类 号：TU399[建筑科学—结构工程]