Research on Influence of Piloti Ratio on Outdoor Thermal Environment in Residential Blocks in Subtropical Climate Areas

Urban Heat Island has become a popular issue in recent years due to various problems caused by environment degradations. Many researchers have done lots of efforts to optimize the outdoor environment, including simulation models, field measurement and case studies. There are few studies research on the comprehensive influence of piloti on outdoor environment. This work takes the residential blocks in Guangzhou, China, as an example, adopting coupled simulation method, which can provide high precision prediction result, researched on the influence of piloti ratio on outdoor thermal environment in subtropical climate areas, and the impact factors of outdoor thermal environment, including temperature, wind environment, mean radiant temperature were all simulated and discussed, aiming at provide systematic references for architects, urban planners, governments and people who do research work in this field.