Research On Environmental Comfort Of Underground Public Space In Transportation Complex Based On Simulation Calculation

With the rapid development of modern transportation construction,transportation complexes have gradually evolved into architectural complexes that integrate large volumes,complex transportation relationships,and highly three-dimensional features,becoming the core driving force for stimulating urban development.The underground public space serves as an important link between the complex and urban space,serving both the interior of the building and as a component of the urban public space.The comfort of the internal environment of the space has a significant impact on the subjective feelings of users and the quality of the building environment.However,due to the unique environmental characteristics of underground space,the creation of space is limited and influenced by many factors.This article takes the underground public space of railway transportation complex as the research object,with environmental comfort as the main research content.The research of this article is carried out from the following five parts:The first part elaborates on the relevant concepts of underground public spaces in transportation complexes,clearly defines the research object and scope,and elaborates on the research content and methods proposed in this article and builds a framework.The second part summarizes the basic research related to underground public spaces in transportation complexes.Summarized the development experience and theory of underground spaces abroad,as well as the evaluation indicators related to environmental comfort and current domestic design standards.Based on comprehensive analysis,the trend of composite development of underground public spaces and the current situation of insufficient targeted regulations are identified.The third part elaborates on the functions,forms,and usage behaviors of underground public spaces in transportation complexes,and constructs a spatial classification system.Summarized the characteristics and representative station construction status of different types of transportation complexes,and selected typical stations for simulation research in the following text.The fourth part comprehensively considers the application scope and scalability of commonly used environmental simulation software.The REVIT and ECOTECT series software are selected to establish digital models and simulate the environment of typical sites.The obtained temperature,PMV value,DF value,DA value,UDI value,and wind speed data are analyzed to evaluate the current situation of environmental comfort in underground public spaces of typical sites.The fifth part proposes different theoretical perspectives on optimizing the environmental comfort of underground public spaces in transportation complexes based on the previous research results;Corresponding optimization strategies for environmental comfort have been proposed for different types of spaces.Carry out Analog verification on the common space forms of introducing natural lighting and ventilation,and further elaborate the environmental optimization strategy.It has certain design guidance significance for promoting the optimization of the environmental quality of underground public spaces in transportation complexes and enhancing people’s user experience.