Fundation Optimized Design Based On Pattern Recognition Of The PKPM Internal Force Chart

In this paper, according to the characteristics of building structure internal forcedrawing, the research of table storage and table processing of building structure AutoCADvector graphics feature datum has been completed. Using VB language, combined withobject-oriented drawing recognition methods and CAD ActiveX Automation technology,the internal force drawing of building structure was indentified. Combining with the APDLlanguage of ANSYS, the interface problem of PKPM software and ANSYS software hasbeen discussed. Through ANSYS secondary development, the automatic modeling offoundation analysis has been realized, this study laid a foundation for optimal design ofbuilding foundation.Using the concrete strength, raft thickness and reinforcement strength as the designvariables, Raft foundation design of a high-rise building has been carried out with thelowest total cost of the structure as the objective function.The two stage optimized method has put forward for a 30 layer shear wall structure ofthe pile raft foundation design. According to the upper load and structure optimized designfor pile layout, through the study on the external strong - internal weak, external weak -internal strong and uniform pile form, the optimal layout of piles form has been gotten.The optimal design of mixed foundation for complex geological condition has beendone for a 30-story floors shear wall structure located on a hillside fields. Studies haveshown that the raft thickness has a major effect on uneven settlement of foundation,foundation inclination and foundation engineering cost for Raft pile mixed foundation.