Research On Anti Glare Design Of Skylight For Complex Shape Roof Of Gymnasium

With the development of sports architecture towards a large-scale,diversified and innovative trend,as well as the aesthetic needs of people’s visual diversity,the roof of gymnasium presents a complex architectural form,which brings new opportunities and challenges to the natural lighting of gymnasium.Glare is a frequent phenomenon in the natural lighting of gymnasiums,which will greatly reduce the visual comfort and even harm the visual function of users,thus causing adverse effects on the results of sports competitions.Glare problem is becoming more and more serious in the complex shape of the gymnasium skylight design.As a key element of the evaluation index of the luminous environment,the anti-glare design of the skylight of the complex roof is more difficult.Based on the complex environment background and people-oriented design concept,this paper analyzes the development trend of complex shape of gymnasium and the current situation of glare of skylight in gymnasium.The complex forms of gymnasium roof are divided into three categories: Organic bionic,topological variation and emergent construction.Combined with the calculation formula of discomfort glare index(DGI)and the characteristics of complex architectural form,the causes of skylight glare of complex shape roof are analyzed,which are the layout and technical methods of skylight the position,transmittance and the angle between skylight and light are the main factors affecting the glare degree.Based on this,it is proposed that the anti-glare design of skylight should follow three principles: the rationality of layout,the suitability of natural light transmittance and the accuracy of daylighting control.Based on the glare problem of gymnasium skylight with complex shape roof,the third and fourth chapters explore the design method of skylight anti-glare from two aspects of skylight layout and technical methods.Firstly,according to the complex morphological characteristics of organic bionic,topological variant and emergent construction gymnasium roof,the dynamic,random and group layout of skylight is explored by theoretical speculation and interdisciplinary research methods,which is more conducive to the reduction of glare.The skylight angle and orientation of complex roof usually compromise the pursuit of form.In this paper,we use software simulation to control glare from three aspects: skylight scale,transmittance and occlusion architecture.Through the control of the size,shape and the ratio of window to ground of the skylight of complex shape roof,the selection of skylight angle,skylight orientation and glass transmittance,as well as the flexible increase and decrease of shielding structure near the skylight,the fine control of skylight intake is achieved,so as to achieve effective prevention and control of glare.At present,the domestic complex roof form Gymnasium Design for glare problem of consideration and precision design is low,there is no clear design method and guidelines,this paper aims to explore the specific methods and effective ways to solve the glare problem of complex roof skylight,in order to provide solutions and direction for the glare problem of complex roof gymnasium design.