1、4剖面图是对建筑物或其局部的垂直切面的再现，它以图形的方式说明了建筑的空间特征与其主要体积、材料、结构和色彩的关系，呈现着风、光、热等无形的流动，也隐含着空间与身体之间的联系。宽泛地讲，平立面图纸也可看作一种剖面图，平面是水平面的剖切，以表达功能组织和空间的水平关系；立面是大地被剖切后建筑的投影，以表达外观比例和细部。本期以“剖面建筑”为题，通过展现建筑创作中剖面的表达或者以剖面为先导的设计过程，试图探究不同的建筑在特定条件下的空间层次、功能系统、结构体系、材料质地、物理属性，以及对日常使用下身体感知的细微关照，这些都关乎建筑的本质。提到建筑中剖面的表达，容易联想到山地或自然环境中的设计创作。
2、成渝金融法院历史建筑群的更新和利用，集合了重庆渝中半岛独特的地形地貌、既有城市空间环境及新旧建筑的多重复杂剖面。两江协同创新区的规划展示中心与融合创新中心，在同样的山地环境中以剖面为空间策略使建筑成为垂直的风景和山谷的延伸。从宏大的自然到细微的体验，位于自然保护区的唐家河自然教育中心与位于风景名胜区的棠之酒店，以场地剖面、空间剖面、时间剖面、结构剖面入手，引导人在行进动线中对外部自然与内部日常的感知。中国新四军历史研究馆与悦苑酒店，一个是化整为零的场所释放，一个是化零为整的向内聚合，都成为融合了技术剖面的空间重构。不同的是，中建滨湖设计总部是一个基于剖面优先的生态设计案例，斜向退台、活力动线、
3、自然界面导向了低能耗、舒适又人性化的办公空间。从空间本质出发，我们无法忽视剖面的意义。如果回到设计工具本身，纵观人类建造活动的历史，建筑师正从传统、抽象的二维图纸研判方式逐渐向直观的透视、漫游、三维剖切转换，XY、XZ和YZ三个向度被充分融合，“剖面”的空间具有了更完整的意义。这一观点在“从分离到整合的剖面历程”中的提出，正指向了一种深刻的符合空间本质的设计认知与生成逻辑的回归。The sectional drawing is a representation of the vertical section of the building or its part.It illustrates
4、the relationship between the spatial characteristics of the building and its volume,material,structure and color in a graphic way.It presents the invisible flow of wind,light,heat,and also implies the connection between space and body.Broad-ly speaking,the plane and elevation drawings can also be re
5、garded as a kind of sectional drawing.This issue The Section for Architecture attempts to explore the spatial level,functional system,structural system,material texture and physical properties of differ-ent buildings under specific conditions,as well as the subtle care of body perception,by showing
6、the expression of sections or the design process guided by sections.These are all related to the essence of architecture.When it comes to the expression of the section in the building,it is easy to associ-ate with the design creation in the mountain or natural environment.The renewal and utilization
7、 of the historic buildings of the Chengdu-Chongqing Financial Court integrate multiple complex sections of the unique topography and landforms of Chongqing Yu-zhong Peninsula,the existing urban environment and new and old buildings.The Plan-ning and Exhibition Center and Joint Innovation Center of C
8、hongqing Liangjiang Coor-dinative Zone make the building become vertical landscape and an extension of valley in the same mountain environment with the spatial strategy of section.From grand nature to subtle experience,Tangjiahe Nature Education Center located in the nature reserve and Begonia Inn l
9、ocated in the scenic area start with site section,space section,time section and structure section to guide peoples perception of external nature and inter-nal daily life in the moving line.Historical Research Museum of the New Fourth Army of China and the Dhawa Quzhou,one is the release of the whol
10、e place and the other is the inward aggregation of the whole place,have become the spatial reconstruction integrat-ing the technical section.The difference is that CSWADI Lakeside Design Headquarters is an ecological design case based on sectional priority.The oblique retreat,dynamic line and natura
11、l interface point to a low-carbon,comfortable and humanized office space.From the essence of space,we cannot ignore the significance of the section.If we go back to the design tool itself and look back upon the history of human construction activ-ities,architects are gradually transforming from trad
12、itional two-dimensional drawing to three-dimensional design.The three dimensions of XY,XZ and YZ are fully integrat-ed,and the space of section has a more complete meaning.The proposition of this view in the sectional process from separation to integration points to a profound return of design cognition and generation logic in line with the essence of space.篇首语吴春花 建筑技艺（AT）执行主编DOI:10.19953/j.at.2022.11.001