Climate Adaptability Design Study Of Concrete Porous Building Skin In Hot-Humid Area

The design of climate adaptability in hot and humid areas is inseparable from the consideration of shading and ventilation of the building skin.The traditional concrete skin is too thick and solid,and has insufficient climate adaptability,which is not conducive to building energy conservation.Nowadays,with the development of concrete material technology,lightweight and porous concrete skin has become a new trend.Among them,ultra-high performance concrete(UHPC)has superior climate adaptation potential,and its plasticity makes it suitable for various innovative architectural images.Therefore,more and more architects are turning their attention to UHPC to enrich the aesthetic vocabulary of the building skin through the form of perforations.This article is divided into five chapters.The first chapter expounds the research background,object and scope,introduces the current research situation at home and abroad,and puts forward the method and writing framework based on the purpose and significance of the research in this article.The second chapter,as the research foundation,introduces the characteristics,forms and construction technology of the concrete porous skin,and then analyzes the climatic characteristics of hot and humid areas and the problems and causes of building energy consumption,discusses the necessity and main methods of climate-adaptive design,and from Shading and ventilation analyze the building response measures in hot and humid areas,and then propose the climate adaptation potential of the porous concrete skin and the impact on the building thermal and wind environment.Chapters 3 and 4 discuss the climate-adaptive design of concrete porous skin from the perspectives of building shading and natural ventilation,respectively,expounding the early and modern applications of concrete skin shading and ventilation,and the design of concrete porous skin design in Guangzhou area.The basis is mainly based on the climatic conditions of the hottest month in summer in Guangzhou.Through Ecotect and Phoenics software,the different micro design factors(pore size,porosity,plate thickness,hole type,skin spacing,plate orientation)and different parameters of the unit board are simulated and analyzed,and these factors are used to determine the shading and ventilation performance of the unit board.According to the influence law,suitable design parameters of the unit board can be obtained,which is convenient for designers to compare schemes.The fifth chapter summarizes the integrated design method and process of the building skin based on shading and ventilation.From the simulation results of the first two chapters,the perforated plate form with the best performance is obtained,and then the design,application and optimization are carried out through project examples to simulate the skin before and after optimization.The sun shading,ventilation and energy consumption prove the feasibility of the scheme.