Incorporating sufficient daylight is an effective and green design strategy to improve visual comfort, energy-efficiency and sustainable building developments. However, there are more artificial lighting consumption, more cooling load and less visual comfort in internal corridors of most buildings due to the shortage of daylight. In this paper, three methods comprising questionnaire survey, numerical simulation and field measurement were integrated to study the daylighting characteristics and the critical length of the corridor with an end window or an open room in daylighting design. It began with a questionnaire survey to understand the subjective perception of the building’s users on the lighting status, daylighting importance and daylighting preference in the internal corridor. Then the daylighting performance of the building corridors with the end window and the open room was simulated by Ecotect, and the analysis of the simulation data was performed through SPSS. Two models were developed for predicting the daylighting critical length of the corridors. Furthermore, a comparison of the field measurement data and the predicted results was carried out to validate the models. The results indicated that the developed models have the better accuracy and can be referred to as a guide for the initial daylighting design of buildings.

引入充足的日光是一种有效的绿色设计策略，可以提高视觉舒适度，能源效率和可持续的建筑发展。但是，由于日光不足，大多数建筑物的内部走廊中人造照明消耗更多，制冷负荷更多，视觉舒适度更低。本文采用问卷调查，数值模拟和现场测量三种方法，研究了采光设计中采光特性以及带有端窗或开放空间的走廊的临界长度。它从问卷调查开始，以了解建筑物用户对内部走廊的照明状态，采光重要性和采光偏好的主观感受。然后通过Ecotect对带有端窗和开放空间的建筑物走廊的采光性能进行仿真，并通过SPSS对仿真数据进行分析。开发了两个模型来预测走廊的采光临界长度。此外，对现场测量数据和预测结果进行了比较以验证模型。结果表明，所开发的模型具有更好的精度，可以作为建筑物初始采光设计的指南。对现场测量数据和预测结果进行了比较，以验证模型。结果表明，所开发的模型具有更好的精度，可以作为建筑物初始采光设计的指南。对现场测量数据和预测结果进行了比较，以验证模型。结果表明，所开发的模型具有更好的精度，可以作为建筑物初始采光设计的指南。