有采光屋面的天井建筑面积怎样计算在塔式错层住宅中,楼梯绕天井旋转而上,上加采光屋面(图1)。在计算建筑经济指标时,请问:天井是否算建筑面积(A~2)?如果算,天井中的楼梯井是否算建筑面积(B~2)?如果楼梯井算建筑面积,是算一层,还是层层算?由于错层布置,出现部分半地下室,作为公用存自行车处,在计算平均每户建筑面积时,是否计 How to calculate the floor area of ​​the roof with lighting roof in the tower-style split-level house, the stairs rotate around the patio, and the lighting roof is added (Figure 1). When calculating the economic indicators of the building, please ask: Does the courtyard count as building area (A~2)? If it is calculated, is the stairwell in the courtyard a building area (B~2)? If the stairwell counts the building area, it is a layer. As a result, due to the split-level arrangement, some semi-basements appear as public bicycle storage areas. When calculating the average floor area per household, whether or not