井字梁结构优化设计的CAD系统

以目前井字梁结构设计作了较系统的研究后，找出了不足之处，利用ＡｕｔｏＣＡＤ作为支撑平台，利用ＡｕｔｏＬＩＳＰ作为编程语言对井字梁结构ＣＡＤ系统进行了开发研究工作，通过对ＡｕｔｏＣＡＤ的界面用户化、对话框采用参数化井字梁结构绘图等技术的研究，开发一个从基本数据输入到初选截面尺寸、内力分析、面优化设计、参数化绘图直至图形管理的一体化井字梁结构ＣＡＤ系统。

Realization of CAD system of optimization design of well-shaped beam structure

With the development of the building industry,the well-shape beam structure is widely used in civil and industrial engineering because it can be loaded properly. By studying the present design method of the well-shaped beam structure,we find that there are some defects in it,and these would be improved.So the Well-shaped Beam Structure of CAD System has been developed.This system uses AutoLISP as its programming language.From the input of data the choice of section,the analysis of internal force,the optimization design of section to the drawing management,the system provides us with a new way of resolving the above problems by using Dialogue Control Box and parameterizd drawing.