The Impact Of Climate Change On The Climatic Regionalization For Architecture

At present,China's reform and opening up have entered a new era,and the mode of economic development has shifted from high-speed development to high-quality development.As a fast-growing construction industry for 20 years,it is also transforming into a high-quality,high-standard development model.For the construction industry to achieve transformation,the most important thing is that the architectural design should be reasonable.To achieve a reasonable architectural design,scientific building climate division is an essential prerequisite.Since the 21 st century,global climate change has intensified,and the climate conditions in some cities of China have quietly changed.However,the current "Standard of climatic regionalization for architecture"(GB50178-93)has been implemented for 24 years since 1993.The changes in global climate over the past two decades will inevitably have a certain impact on China's architectural climate zoning,which will not only cause the boundaries of architectural climate zoning to move,but will even change the climate division of buildings in some areas.When some cities still implement unsuitable standards for building climate zoning,problems such as high building energy consumption and waste of construction resources are inevitable.Therefore,in the new era of advocating the conservation of resources and pursuing green mountains and waters,it is particularly important to re-examine the "Standard of climatic regionalization for architecture".This article begins with an introduction to current hot environmental issues such as the urban heat island effect and global warming.It is intended to illustrate the trend of global warming.The temperature of most cities in China is constantly rising.Through the introduction of the research status of China's architectural climate divisions,it is pointed out that the timeliness of the current "Standard of climatic regionalization for architecture" has declined,and the content,methods and significance of the subject are further elicited.Then the paper takes Zhengzhou City as an example to analyze the changes of temperature and solar radiation in the city.Through nearly four decades of meteorological data,we have analyzed changes in multiple indicators such as annual mean temperature,monthly mean temperature,poor daily temperature,and frequency of average air temperature during the heating and cooling period,to visually show that global warming has affected urban temperature in the past 60 years.At the same time,various indicators such as the annual average solar radiation,the monthly average solar radiation,and the average solar radiation during cooling and heating were analyzed,and the changes in solar radiation over the past 60 years were presented.After comprehensive observations,it was found that the impact of global warming,whether it is the temperature of the city or the amount of solar radiation,generally fluctuates.Through the establishment of the solar radiation dose and temperature scatter plot,the solar radiation amount increased by 101.83(0.01 MJ/m2),and the average temperature rose by 1?.This shows that changes in temperature are affected by solar radiation.Next,based on the "Standard of climatic regionalization for architecture",this paper selects temperature as the most important index,analyzes the temperature changes of the site cities near the boundary line,and determines the temperature warming stations,the constant temperature stations,and the temperature reduction stations.In combination with the principle of zoning,the cities of Chaoyang,Zhangjiakou,Yulin,Zhengzhou,Xuzhou and Shaoguan have undergone zonal changes.Use the interpolation method to make a rough map of the construction climate zone.Comparing with the original building climatic zoning map,we can also find that the boundaries of areas ? and ? and ? and ? have to be larger than the boundaries of areas ? and ?,and the number of stations that cross the boundary of area ? to ?is the most.II The number of stations crossing the boundary of District ? to District ? was the second,and the number of stations crossing Area ? to Area ? was relatively small,while other areas did not change significantly.The offset latitude of the boundary between ? and ? is about 1°.The minimum offset latitude of the boundary between ? and ? is about 30?,and the offset to the east is larger,which is close to 1°30?.?,? zone boundary minimum offset latitude is about 15'.In the end,this paper presents the positive significance of the reasonable construction climate division,and selects an office building in Zhengzhou for energy consumption simulation.After building the building model,compare the energy consumption of the building when implementing the original zoning standard and the energy consumption when implementing the new zoning standard.It was found that when the building implemented the thermal design standards for buildings in the hot summer and cold winter areas,the heating energy consumption in winter was slightly higher than that in the implementation of the cold area standard,and the summer cooling energy consumption was lower than the implementation of the cold area standard,because the summer cooling energy consumption in the overall energy consumption In terms of proportion,the overall energy consumption is 13.2% lower than the implementation of the cold zone standard.This shows that for some cities whose climate change is caused by global warming,the implementation of appropriate building design standards is more conducive to reducing building energy consumption and saving social resources.