Research On Lighting Design Of Stairwell In Old Residential Buildings Under The Background Of Aging

Under the general trend of aging population and aging transformation of residential buildings,a good lighting environment for the stairwell of old residential buildings can meet the needs of the elderly group in various behaviors and activities in the stairwell.At present,China’s existing norms only explain the standard value of illumination on the ground of the overall residential stairwell,And for the residential stairwell there is no explanation on the lighting index value for the elderly.In this context,this thesis is based on the visual characteristics,psychological characteristics and behavioral characteristics of the elderly to meet the safety needs and physiological needs of the elderly in the stairwell as the starting point,and the elderly60 years and older are the research objects.Select 15 old residential stairwells in old communities in Tianjin to investigate the status quo of their lighting space indicators,lighting parameter indicators,and lighting environment indicators,and conduct a subjective evaluation of the status quo on this basis.The results show that the people aged 60 and above are not satisfied with the evaluation of the lighting status of each area in the stairwell.In addition,their satisfaction with the overall lighting of stairs,platforms,door locks of entry doors,entrance halls of unit doors and overall stairwell is lower than that of people under the age of 60,and there are significant differences except for the floor platform ground uniformity and light color atmosphere satisfaction.Using SPSS to analyze the measured data and subjective evaluation results,the results show that the satisfaction of people aged 60 and above with overall stairwell lighting is positively correlated with the illuminance at the step,the illuminance at the platform and the vertical illuminance at the door lock.The lighting demand at the stair is positively correlated with the illuminance at the step,the lighting demand at the platform is positively correlated with the illuminance and uniformity at the platform,and the lighting demand at the door lock is positively correlated with the vertical illuminance at the door lock.On this basis,the subjective evaluation experiment of the lighting environment in the stairwell of the old house is further carried out.The results show that the lighting environment with low color temperature makes the visual feeling of the elderly more comfortable than that with high color temperature at the stairs,platform and door lock of the old residential building.Therefore,the lighting demand satisfaction prediction model at the stair,platform and door lock under 2700 k is established through SPSS,so as to obtain the step edge horizontal illuminance,platform ground horizontal illuminance and vertical illuminance at the door lock that meet the needs of the elderly.Finally,according to the current situation investigation and satisfaction prediction model,the lighting improvement suggestions for the stair,platform,door lock and other areas of old residential buildings under the background of aging are put forward.Among them,in order to ensure the lighting needs of the elderly aged 60 and above,it is recommended to use warm yellow light source in the lighting design of the stairwell of the old residence,and the horizontal illuminance of the step edge at the stair section shall reach 100 lx,the horizontal illuminance of the floor of the stair platform shall reach100 lx,and the vertical illuminance at the door lock of the entrance door shall reach 75lx.