Research On Improvement Design Of Thermal Comfort Of Jinan Rail Transit Elevated Station Under Natural Ventilation

With the continuous development and change of urban transportation,urban rail transit has become the transportation mode chosen by more and more ordinary people.Green urban rail transit station is put forward under the background of the continuous development and improvement of green buildings and urban rail transit.It is more about residents’ travel satisfaction and comfort.However,the thermal comfort of passengers in urban rail transit stations,especially in elevated stations,is poor due to their special use and space,and the current research on thermal comfort in this field is relatively vacant.In this context,we pay attention to the travel satisfaction of passengers in this kind of traffic building and propose the design and research for the purpose of improving the thermal comfort of passengers in urban rail transit elevated station,and strive to make this increasingly important traffic station meet the thermal comfort requirements of passengers as much as possible through design means and provide some design reference for the construction and transformation of relevant stations.In this paper,Jinan rail transit elevated station is taken as the research object.Under the condition of natural ventilation in the public area of the elevated station throughout the year,based on the particularity,problems and needs of this kind of building,the research on the design of the elevated station building and the research on the thermal environment and passenger thermal comfort in the public area of the elevated station platform and station hall in summer and winter are carried out,and the influencing factors and design methods are determined according to the research conclusions Finally,the strategy is summarized and applied.First of all,the survey is divided into three parts: architectural design survey,field measurement survey and questionnaire survey.Through extensive architectural design research,the theoretical framework of architectural design method of elevated station is established from the aspects of form and classification,modeling design,functional space,station environment,etc.;four representative elevated stations of Jinan R1 line are selected as the research object,and the wind speed and temperature values of multiple measuring points in the public area of station hall and platform in winter and summer are recorded and summarized through field measurement and test Summary and comparison: through the questionnaire survey to record the thermal feeling of passengers at different measuring points and at different times,the appropriate evaluation model is selected based on the field measurement and questionnaire survey results,and the prominent problems and main positions in the thermal environment and thermal comfort of Jinan rail transit elevated station hall and platform public area are found,and the problems and rules are concluded.Secondly,guided by the investigation and analysis,considering the outstanding problems and main positions found in the field measurement and questionnaire survey,and considering the influencing factors of thermal comfort from the perspective of architectural design,this paper puts forward the improvement design scheme for the purpose of improving thermal comfort.With the help of the Phoenix simulation tool,this paper focuses on the design of the station form,platform skylight and side window,and the design of the side window of the station hall The simulation analysis of the elevated station is carried out to determine the effect of different design schemes on improving the thermal environment conditions and thermal comfort of the elevated station.Finally,according to the simulation design results,the thermal comfort improvement design strategy for Jinan elevated station is formed.Taking yuanboyuan station and gongyanyuan station as examples,the content of the design strategy is applied to compare the thermal comfort improvement effect before and after the design to verify the effect of the design strategy on the thermal comfort improvement.Therefore,this paper completes the content of this paper through the investigation of the status quo of Jinan elevated station,the discovery of the main contradictions and problems between thermal comfort and thermal environment in the station,the proposal of thermal comfort improvement design strategy,simulation design research and strategy application,in order to achieve the purpose of effectively improving the thermal comfort of passengers in the station,improving the residents’ travel satisfaction,and providing comfortable environment for passengers in the station.Hope that the article for the future related types of site construction and transformation to provide a certain design ideas and basis.