摘要研究目的:复杂截面复杂布筋的钢筋混凝土结构的配筋计算一直是困扰工程界的一个难题,对于非对称非均匀布筋的复杂截面,一直没有给出合理的解决方案。本文以AutoCAD为二次开发平台,基于ObjectARX和VC++采用解析法、迭代法和图解法相结合的方式,解决钢筋混凝土任意截面任意布筋的配筋计算问题(允许应力法),并编制相应的允许应力法任意配筋程序AFPA(Arbitrary Fabrication Program forAllowablestress)。
Abstract:Research purposes: It has been an unsolved difficult problem in engineering to conduct fabrication calculation for reinforcement structure when complex bar arranging is required on complex cross—section.The right solution has not been given to the fabrication on the non—symmetric and non—equably reinforcement section.Taking AutoCAD fits the secondary developing platform,based on ObjectARX and VC++ along with analytic method,iteration method and graphic method,this paper initially perfects fabrication calculation for reinforcement structure when arbitrary bar arranging is required on arbitrary cross—section(allowable stress method),and as a result,a fitting arbitrary bar arranging program I’S made with allowable stress method.
Research conclusions: The results of comparison and verification of considerable calculation cases show that AFPA is feasible and reliable in computing reinforcements for random reinforced concrete section and in computing the stress redistribution for random concrete section;and the computation by means of AFPA show the diaphragm set in the middle of bi—directional stressed hollow section has a little effect on controlling sectional rebar stress and crack width.