Research On Parametric Form Generation Strategy Of Long-span Buildings From The Perspective Of Complexity

With the improvement of living standards and the continuous development of science and technology,people are facing the common challenges of increasingly complex spatial forms and iterative design methods in the field of architecture.The continuous improvement and expansion of design concept,aesthetic image and construction technology have prompted more large public buildings in the contemporary era to show a trend of complexity and nonstandardization.Among them,the large-span building has a unique structure,wide applicable space and distinctive appearance,and its design should follow the development characteristics of the times.Long-span architecture is a model of combining technology and art.The important characteristics of large-span buildings such as watching and acting buildings,exhibition buildings and sports buildings lie in the artistic expression of form and space,but its aesthetic expression should be based on the rational construction law.Today,there are also many large public buildings exposed in various forms show off,complex structure exaggeration,improper use of space,internal and external expression,excessive waste of materials and other drawbacks.Therefore,parametric design provides a design method in line with mathematical logic for this complex factor,and thus derives variable morphological characteristics.The further research and application of digital technology provides more powerful support for the innovation of large-span architectural form,which can make the image of large-span buildings colorful.Relying on complexity science,emphasizing bottom-up design strategy and dynamic and multi-level complex architectural form,it is moving from the past marginalization to the mainstream design stage.The first three chapters of this paper first study the theory and characteristics of complexity science,describe how to grasp the complexity characteristics of architectural forms from the overall perspective,and analyze the causes of complex architectural forms.By connecting complexity science with architecture,a series of philosophical concepts are introduced in order to help architects obtain creative inspiration more directly with these philosophical ideas.Secondly,the long-span architectural form,parametric design and the relationship between the two are expounded,the shape and development of long-span architectural form are analyzed,and the development history of its form and the factors affecting the evolution of contemporary long-span architectural form are analyzed.In the fourth chapter,based on the inspiration of complexity science,the large-span architectural form is summarized into two aspects : emergence generation and topology change of unit reproduction.Firstly,this paper discusses the conceptual interpretation of emergent generation and topological change,and then analyzes the morphological connotation of the two,and summarizes the formal logic of the two.The fifth chapter constructs the design strategy of complex form generation of large-span buildings.The essence of parameterization of long-span buildings is to solve the problem of complexity.A variety of large-span spatial forms are formed by dynamic operable systems combined with a series of collaborative technical means.Firstly,through a series of steps such as graphic process and software selection,the large-span architectural form is initially formed.Then,the logical construction methods of architectural structure and skin morphology are adjusted,and finally evolved into a systematic complex large-span architectural model.In the last chapter,the design strategy proposed in the fifth chapter is applied to the design of Jingwei Industrial Park Sports Center,Qingdao University of Science and Technology Sports Center and Hanbin District Cultural Activity Center in Ankang City.The large-span architectural form is optimized by parametric design methods,in order to provide theoretical guidance for practical construction projects.