The Layer Finite Element Model Of High-rise Building Structure In Scheme Design Stage

With technology progressing and economy developing, all kinds of type structure system develop rapidly. The structure form selection question is becoming important unprecedented and receiving engineering and architects more and more attention. At present, domestic and foreign not yet progress the full research in the structure form selection aspect about its theory. Because the structure form selection is an extremely complex decision-making question, has the intensely integrative characteristic, contains mass incertitude information. Generally thinking, it is hard to use traditional rules or math layouts to model the structures to solve the problem.This thesis is mainly aimed to the security of the structures, a brief model of high-rise buildings is produced for analyzing in scheme design stage, assists architects to select the structure form, at the same time, the size of the main members is provided, which can be used for the structure shop drawing design.Firstly, the research status of the structure form selection is introduced, the reasons of the structure form selection methods can't be widely used in practical engineering are pointed out, but we indeed need a reasonable method of the structure form selection to solve the inconsistency of architecture and structure, to prefer the design flow and to reduce the construction cost.Secondly,the application of the finite element method is used in structures is described, then the concepts of the super finite element and the characteristic of the deformation of structures are considered, the layer finite element is brought forward. The concepts and computing methods of the layer finite element is discussed chiefly. The layer finite element are compared to the usual analysis method, the layer finite element model is proved to be feasible and rational, can be used in the scheme design stage.Thirdly, the layer finite element structure model is used to analyze engineering examples of different kinds of structure systems; the model is proved to be correct, can be used in the scheme design stage. Then, the interface of the program is simplified, to make sure it can be used by architects in the scheme design stage for practical engineering, and it can be used to select the form of the structure and offer the approximate dimension of main members.Finally, some conclusions are drawn on the excellences of using the layer finite element to analyze high-rise buildings in scheme design stage, and some distinctive advices are given for further researching.