884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

（西安建筑科技大學土木工程學院 710055）
【提要】 在張弦桁架形態(tài)分析的基礎上，采用多階段形態(tài)優(yōu)化設計方法，建立了優(yōu)化設計步驟及多個優(yōu)化模型，對比分析了各模型的位形、桿件軸向應力、彎矩、拉索預應力、用鋼量等經濟技術指標，根據剛度設計要求得到了最合理模型，該模型可為設計經濟合理的張弦桁架提供參考。
【關鍵詞】 張弦桁架 形態(tài) 形態(tài)優(yōu)化 設計方法 穩(wěn)定
Shapestate Optimization Design of Largespan Truss String Structure/Xiong Wei,Wu Minzhe(College of Civil Engineering,Xi'an Univ. of Arch. & Tech.,Xi'an 710055,China)
Abstract:On the basis of shapestate analysis of truss string structure,design steps and some optimization model based on dividedphase shapestate optimization are presented. The shape,axial stress,moment,cable prestress,sum of steel of the model are compared and investigated,and a best model is got according to the demend structure stiffness,which may be a reference for project design.
Keywords:truss string structure;   shapestate;   shapestate optimization; design method; stability