| With the rapid development of China’s urban construction and the improvement of space quality,the number of large space buildings is increasing,and a large number of large space enclosed by roof or side wall with transparent material appears.This kind of transparent large space in the beneficial space effect and sufficient natural lighting at the same time,its indoor sun and energy consumption problems have gradually become prominent.For this kind of "class" outdoor large space of indoor environment,both the necessary natural lighting and energy-saving requirements,at the same time in the big space indoor sunlight transmission area construction of space and time requirements consistent with the crowd,continue with the shadow of "often full shadow" space,it is worth to explore problems,can provide reference for the future of the large space building design,At the same time,it will pave the way for the research of green building with large space.This paper analyzes,summarizes and clarifies the activity characteristics,shadow space needs and existing problems of the users of different forms of large space buildings in summer hot areas,and proposes to build the "constant full shadow" space in the main time period of crowd activities and the space that is always in shadow.Based on the analysis and summary of relevant architectural environment simulation software,the spatial and temporal correlation between the influencing factors of the "permanent total shadow" construction and the spatial attributes of the "permanent total shadow" is explored,so as to establish the goal,approach and design method of the construction of the "permanent total shadow" space in large space.The main research conclusions of this paper are as follows:1.Through the investigation,analysis and summary of large space building space in hot summer area,it is found that users’ demand for shadow space shows the characteristics of spatial and temporal scale difference.Different types of large space buildings show different demand characteristics,including the distribution of users,activity type,activity time,activity area,activity scope,etc.The shadow space of large space has the problems of insufficient shadow length,insufficient space and poor quality.2.Through the simulation analysis of related shadow software,the formation mechanism of "constant total shadow" space in large space is found.It is found that the shading performance of the roof is the core factor that affects the space shading ability of the large space building.The height of the large space has a certain influence on the influence of the "normal total shadow" space.The lower the height of the large space,the larger the scope of the "normal total shadow" space.In addition,when there are high-rise buildings on both sides of large space buildings,it is easier to obtain "constant total shadow" space due to the blocking effect of high-rise buildings on the direct sunlight.3.According to the characteristics of spatial and temporal needs of activities and the construction mechanism of construction objects,three construction objectives are put forward,namely,to construct a "permanent full shadow" space that meets the needs of users’ activities,to construct a "permanent full shadow" space with multiple spatial and temporal complexes,and to construct a "permanent full shadow" space with good quality.It is clear that there are three ways to construct the buildings around the buildings with reasonable large space,to construct the structures inside the buildings with reasonable layout,and to supplement the structures with structures.4,put forward the "use-build-complement" indoor "constant full shadow" space design idea;The main steps of the "constant total shadow" space of the large space building are defined,that is,the first step,the basic part of the "constant total shadow" formed by the original shadow body of the site and its surrounding area;The second step is to explore the outdoor structure adjustment and indoor structure supplement related to the shadow missing part in the "constant total shadow" space.The third step is to adjust the outdoor shadow body of the missing part in the "normal total shadow" space and to design the specific supplementary shadow of the indoor shadow body.5.In the interior design of large space,the construction of "constant total shadow" space can indeed improve the thermal comfort of the internal environment of the building and reduce the energy consumption of the building.It is a very effective passive building design method and contributes to the perfection of green building design theory. |
