A Holistic Approach for Improving Visual Environment in Private Offices
A Holistic Approach for Improving Visual Environment in Private Offices
复制标题
改善私人办公室视觉环境的整体方法
DOI：
10.1016/j.proenv.2017.03.104
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Athanasios Tzempelikos
中科院分区：
文献类型：
--
作者：
Iason Konstantzos;Athanasios Tzempelikos
视觉舒适是设计工作和生活环境的主要优先事项之一。然而，一个高效的办公空间设计也应该考虑到它的能源性能，以及与室外的连接。后者是一个研究较少，但与室内整体视觉满意度相关的关键因素。虽然新的设计在朝向、窗户与墙壁的比例和高性能玻璃系统方面为建筑师提供了自由，但现有的空间需要更有针对性和有效的改造解决方案，主要是与遮阳设备和自动控制系统相连接，甚至是内部位置布局的潜在调整。在具有大立面的建筑周边区域，日光的眩光是一个常见的问题，它严重影响了生产力和居住者的舒适度，因此应将其缓解视为优先事项。然后，最大限度地提高照明能源性能或与室外的连接程度应该是与空间使用相关的次要决策。有几个指标被用来量化视觉不适的程度，而日光眩光概率（Daylight Glare Probability， DGP）被广泛接受为一个合适的指标。然而，在本研究中，由于DGP在通过卷筒遮阳帘可见太阳的情况下的适用性的局限性，正在使用另一种标准，基于眼睛直接和总垂直照度的阈值。为了符合IES标准LM-83-12，连续日光自主性被用来评估空间的照明能源性能，而对于与室外的连接，新开发的有效外部视图指数被扩展，以量化动态遮阳系统的情况。三重视觉环境标准允许对带有卷帘的私人办公室的视觉环境进行整体评估。
Visual comfort is one of the main priorities in designing working and living environments. An efficient design of an office space however should also take into account its energy performance, and the connection to the outdoors. The latter is a poorly studied but critical factor connected to the overall visual satisfaction in the interior. While new designs offer freedom to the architects in terms of orientations, window-to-wall ratios and high performance glazing systems, existing spaces require more targeted and effective retrofit solutions, mostly connected to shading devices and automatic control systems or even the potential adjustment of the positional layout in the interior. Glare from daylight is a common issue in building perimeter zones with large facades that highly affects productivity and occupant comfort, therefore its mitigation should be considered as a priority. Then, maximizing the lighting energy performance or the degree of connection to the outdoors should be secondary decisions connected to the use of the space. Several indicators have been developed to quantify the degree of visual discomfort, and Daylight Glare Probability (DGP) is widely accepted as an appropriate index. However, in this study, due to limitations of the applicability of DGP in cases with the sun visible through roller shades, an alternative criterion is being used, based on thresholds for the direct and total vertical illuminance on the eye. In compliance with IES Standard LM-83-12, the continuous daylight autonomy is used to assess the lighting energy performance of the space, while for the connection to the outdoors, the newly developed Effective Outside View index is extended in order to quantify the case of dynamic shading systems. The triple visual environment criterion allows a holistic evaluation of the visual environment in private offices with roller shades.