摘要
发展地下交通系统成为解决城市化进程中交通拥挤、土地紧张等问题的重要应对措施。地下交通枢纽空间的顶部开口可以缓解地下空间的采光与通风需求,但因此会使地下空间接受较多的太阳辐射量,导致夏季热不适。分析不同顶部开口设计对地下空间的热环境状况影响可以辅助设计人员优化方案,减少建筑能耗。本研究提出一种基于日照时数的热环境评价方法。该方法借助日照模拟分析软件定性与定量分析研究空间的太阳照射时数分布情况,同时基于权重分析法考虑了不同时刻太阳辐射强度变化的影响。在此基础上采取控制变量法讨论开口率、开口数量、开口深度和日照时数之间的关系,确定使地下空间热环境良好的开口设计形态。此外,选取广州市某综合交通枢纽设计项目作为案例研究,详细展示了如何利用所提出的方法评价分析不同顶部开口设计方案的太阳照射时数分布情况。将所总结的方法应用于设计实践中,使其在方案设计阶段确定有利于地下空间热环境效应的开口设计,为后续阶段的热环境优化奠定良好的基础。
The development of underground transport hubs has become an important approach to address urbanization problems such as heavy traffic and land deficiency.Top openings in the underground transport hubs can enhance underground daylighting and natural ventilation.However,the underground space will receive more solar radiation through top openings,where a thermally uncomfortable environment would be formed on summer days.It is necessary to understand the relationship between opening design parameters and thermal environment index,so as to assist the designers to improve design proposals.This study proposed an analytical method to evaluate the thermal environment based on sunshine hours.This method can qualitatively and quantitatively analyze the distribution of sunshine hours in the analyzed underground space using a sunshine simulation tool.Hourly variation of solar radiation intensity is also considered through the weight analysis method.The relationship between opening design parameters(i.e.opening rate,number of openings,underground space height)and sunshine hours has been discussed in this study.An underground transport hub located in Guangzhou is selected as a case study object to demonstrate the application process of the proposed method.The results show that the proposed method can assist the designers to determine top-opening design proposals with better thermal environment and lower building energy consumption for underground transport hubs at the scheme design stage.
作者
王东
赵雪秀
韦家俊
刘鹏
何江
Wang Dong;Zhao Xuexiu;Wei Jiajun;Liu Peng;He Jiang(Nanning Survey and Design Institute Co.,Ltd.of China Railway Siyuan Group,Nanning 530006,P.R.China;Civil Engineering and Architecture College,Guangxi University,Nanning 530004,P.R.China)
出处
《地下空间与工程学报》
CSCD
北大核心
2024年第3期737-747,共11页
Chinese Journal of Underground Space and Engineering
基金
国家自然科学基金(51968003)。
关键词
地下交通枢纽
顶部开口设计
太阳照射时数
热环境分析
方案设计阶段
underground transport hub
top-opening design
sunshine hours
thermal environment analysis
scheme design stage
