Research On The Design Of Hunan Exhibition Garden At The Fourth China Greening Expo Supported By LIM Platform

With the advent of the digital era,digital technology development not only promotes the innovation of technical means of landscape gardening,but also effectively promotes the progress of design thinking.LIM platform,as the frontier technology of digital landscape design,provides strong support for the digital design of projects.As an important venue for practicing new concepts,technologies and materials in the landscape gardening industry,the exhibition and conference garden has the characteristics of foresight,innovation and pioneering.This paper takes the Hunan Exhibition Garden of the Fourth Green Expo of China as the research object,constructs the information model framework of Hunan Exhibition Garden based on the LIM platform,conducts the design practice exploration of the whole life cycle of Hunan Exhibition Garden,and finally completes the scheme design of Hunan Exhibition Garden.The main research results are as follows:(1)Hunan exhibition Garden information model framework construction.With the help of LIM technology platform(core analysis software,core modeling software,visualization software,etc.),the digital technology system of Hunan Exhibition Garden is constructed from four structures:model layer,data layer,tool layer and application layer.And from the perspective of the whole life cycle of the project,the LIM landscape design workflow of Hunan Exhibition Garden is constructed from the preparation stage,implementation stage and use stage,so as to form the basic framework of Hunan Exhibition Garden information model with reversibility and synergy,and provide the theoretical basis for the subsequent work.(2)Hunan exhibition Garden information model construction.①Environmental analysis model of Hunan Exhibition Garden.With the help of Rhino+Grasshopper software to quantitatively analyze the site environment,generate the visualization model of topography,elevation,slope,slope direction,sunshine,rainwater runoff and visual area analysis of Hunan Exhibition Garden,assist in completing the design decision of Hunan Exhibition Garden,and provide scientific guidance for the completion of the program design.②Hunan exhibition Garden main information model.On the basis of the program sketch,with the powerful module function of Revit software to complete the Hunan Exhibition Garden environmental information modeling,landscape vignette modeling,hard pavement modeling,and give material information to the model,annotation,and finally output 2D and 3D model drawings and data information.(3)Hunan exhibition Garden scheme design results.Based on the information model of Hunan Exhibition Garden,the preliminary drawings are output,and the overall design,zoning design and special design of the scheme are completed with the help of Photoshop,Lumion and other software,and the final scheme design results are obtained through further refinement and optimization.This paper constructs a digital model for the whole life cycle design of Hunan Exhibition Garden through the study of Hunan Exhibition Garden design application under LIM platform,which provides useful reference and reference for the promotion and application of LIM technology in landscape garden planning and design field.