Study On The Influence Of Height Control Parameters Of Building Visual Field On External Space

The control of external space scale is an important part of architectural design theory and one of the key factors affecting visual perception.The scale in the external space has the fit,the artistic expression way has always been fascinated by the people.For a long time,the scale study of outer space is mostly based on the twodimensional quantitative study of plane or section,which explains people’s perceptual experience by analyzing several spatial sections.However,it is obvious that people’s cognition of the external space cannot be fully interpreted only by the two-dimensional analysis method that emphasizes the local and fragmented nature.Therefore,the building visual field based on three-dimensional space emerges at the historic moment,which is an important quantitative way to describe the degree of visual psychological perception of people by building volume and spatial scale.This paper attempts to establish an efficient and systematic quantification method of building visual field.Through quantitative analysis of building visual field from two different perspectives,this paper tries to solve two specific sub-research problems on height control caused by the parameters of visual range d and elevation Angle a in the external space.The presentation relation between subresearch problems.First is induction-testing Angle: select nine Italy and other European representative ancient classic dominant type square space as an example,through the quantitative description of architectural visual field markers height on the influence degree of human visual perception,comparative analysis and concludes the general rule of visual,reveals the great square markers internal coupling relationship between height and square scale.This verifies the validity of the quantification method of architectural visual field.Secondly,from the perspective of check-out and evaluation: the height control of new buildings in and around the historical and cultural street generally follows the building height control guidelines based on experience.On the basis of the algorithm in the first question,this paper further describes the degree of visual psychological impact of new buildings on historical and cultural blocks through quantitative analysis of architectural visual field.Combined with the law of psychophysics weber-fischner,the height threshold affecting visual perception is detected,so as to establish an evaluation method of building height.Finally,the simulation verification and impact evaluation were carried out for the historical and cultural blocks in tianjin,namely tianjin fifth avenue and jiefang north road.Both the visual rules and general conclusions obtained from the inductive and verification perspective,or the evaluation methods established from the detectionevaluation perspective,are ultimately aimed at providing suggested design guidelines for the height setting of the volume in the current external space,and enriching the research theory on the height control of the volume of the building in the external space.At the same time,due to the universality of the computational logic and thinking Angle,the study can also provide a relatively objective design basis for other practical applications aimed at creating the atmosphere of external space.