Preliminary Study On Multi-level Residential Layout Pattern Based On Thermal Environment Optimization In Xiamen

In recent years,with the rapid development of urban economy and population in China,the urban climate problems caused by urban construction activities has become increasingly apparent.Among others,such problems caused by the deterioration of the urban thermal environment as increasing air conditioning energy consumption of buildings in summer,the high incidence of cardiovascular and cerebrovascular diseases,has brought negative impact on the energy conservation of buildings and people’s health.Residential area is the most important living place in the city,its outdoor thermal environment affected by many complex factors.As a decisive factor in the form of residential area,the relationship between the layout pattern and the outdoor thermal environment is worthy of further study.Based on the optimization of the thermal environment evaluation method of the residential area,the examination of the characteristics and frame conditions of the local typical residential area,the regular pattern of diurnal variation of the outdoor thermal environment in the typical multi-storey residential area in Xiamen was explored by means of the site investigation,and the distribution characteristics of thermal environment under the typical layout was obtained by means of numerical simulation.And the influence mechanism of the multi-level residential layout pattern on the outdoor thermal environment is obtained through the combination of ideal experiment and numerical simulation.And then the optimized strategy of multi-level residential area layout in Xiamen for the optimized thermal environment was put forward.The research results show that the mechanism of residential layout pattern on the outdoor thermal environment can solve some problems about the plane layout and the overall shape control,which is beneficial to the planning and design practice of high performance green residential area.Taking the multi-storey residential area in Xiamen as an example,under the condition of the same volume rate,the building layout of housing in row is better than the building layout of the point type.The vertical plot is better than the lateral block setting.The group should not be too concentrated or too scattered;a larger scale of the complete green space should be between the groups,direction of open space should be parallel with that of the main wind,and the opening should be set in the main wind direction.At the same time,the arrangement of buildings within the group,road organization,green and hard layout will have a significant impact on the outdoor thermal environment.