标准地铁出入口参数化设计研究

Study on Parametric Design of Standardized Subway Entrances and Exits

地铁作为重要的城市地下空间,在建设过程中已逐渐强制应用BIM技术。通过对我院车站出入口BIM正向设计的研究,将两扶一楼地铁出入口定义为标准地铁出入口,分析了对其斜坡段进行参数化设计的必要性、急迫性和可行性;借鉴智能化设计的思路,总结与出入口斜坡段相关的设计规则、修正法则和触发条件,据此将参数分为独立参数、默认参数和因变参数,并建立各参数间的关系式,应用GDL语言进行封装。利用参数对应策略,保证图面表达满足国家标准,并用实际项目进行验证。该方法提高了地铁出入口BIM正向设计效率和质量,为其他地下空间的参数化设计和智能化研究提供了参考。

BIM technology has gradually been compulsory in the construction of the subway because of the subway’s significance for urban underground space.Through the research on the BIM forward design of the station entrance and exit of our institute,the subway entrance and exit of the two escalator floor were defined as the standard subway entrance and exit,and the necessity,urgency and feasibility of the parametric design of the slope section were analyzed.Referring to the idea of intelligent design,design rules,modification method,and trigger conditions,grouped parameters related to subway access passages were concluded into independent parameters,default parameters,and dependent variables.The relations of the parameters were set up,and encapsulated by GDL.The parameter mapping strategy was used to ensure that the surface expression meets the national standards,and an actual project was used to verify.The design efficiency and quality has improved greatly,and it makes a contribution and a further reference to the study on parametric and intelligent design of the other underground space.