【正文】 tion can be formed even in no wind. Forming a tunnel in the body design of the building, so that the natural wind in which the roundabout, get good ventilation, so as to achieve the purpose of energy conservation. Sunshine principles and towards the choice is to get enough sunlight in winter and avoid the dominant wind, summer can take advantage of natural ventilation and minimize solar radiation. However, the orientation towards the construction program and the design of the building is often constrained by social history, culture, topography, urban planning, roads, environmental conditions, in order to make towards the building while meeting the summer heat and winter insulation is often difficult. Therefore, only tradeoffs between various factors, to find a balance, try to be reasonable.　Energysaving design monomers　Energysaving structural design of various parts of the buildingEnergyefficient structural design of various parts of the building, mainly to meet the same building as a fundamental part of the function, to be further design aspects of the material through the various parts (roof, floors, walls, doors, windows, etc.), construction and so on. Make full use of the building exterior climate conditions, to save energy and improve the effect of indoor microclimate environment.(1)Energysaving design for roof The roof is an important part of the building and the outdoor air in contact with the main energy saving measures: ①the use of sloping roof。s lives, the more unbearable winter heat toss, heating in winter to the summer to cool, which consumes energy. Initial investigation found that summer air conditioning power consumption is a major factor in recent years, increasing in civilian electricity. The energy consumption of public buildings is to bee the black hole, airconditioning systems in public buildings energy consumption of buildings accounts for the proportion of total energy consumption is increasing year by year. From a macro perspective, only to achieve the conservation and rational use of energy resources in order to meet people39。s second largest energy consumer. Some public buildings are often used as a symbol of the modern city, but due to the special nature of its structure and purpose, and often also public buildings energyhungry, energysaving potential of such buildings urgently mining. Second, strengthen the construction of energysaving, especially the importance of energy efficiency in public buildings.2　Strengthen the construction of energysaving, especially the importance of energy efficiency in public buildings　The need to strengthen the energy efficiency of public buildings and social developmentWith the rapid economic and social development, and constantly improve the living standards of technology and science and technology, energy problem has bee one of the important countries in the world. The total energy consumption in the world, 25% to 40% of energy consumption in buildings. At present, China39。s total energy consumption building society accounts for the total energy consumption of 27%, gradually, refrain. Especially in recent years, with the European style of vogue, many large public buildings as seeking ocean, Innovation, and big, the pursuit of facade effect, a large area with glass walls, winter cold, summer heat, must resort to air conditioning adjust the room temperature, so that the air conditioning energy consumption than the general construction of such buildings to be three times higher. According to the survey, China has about 500 million of large public buildings, power consumption 70~300years for residential 8~15 times. China39。s need for a fortable thermal environment. Thus, strengthening building energy efficiency, especially in public buildings energy delay. 　Strengthen public building energy efficiency is to realize the need for national energy saving targetsChina39。 ②Set roof insulation layer。 translucent insulation.4　Conc