作为“第五立面”的屋顶造型组合

Composition of Roofs as the Fifth Architecture Facades

屋顶作为俯瞰角度上的第五立面，其形式组合问题仍被忽视，需要进行相对独立的研究．历史上这种第五立面的形式组合是自然形成的，今天则要求建筑师自觉的研究和创造．本文在简述第五立面的肌理和色彩组合之后，重点提出以抽象的几何形式为基础，并与外部空间组织相结合的第五立面形式组合规律．从单体屋顶的不同几何形式特征出发，这种组合关系表现为：面的延伸、轴线的运用、空间的围合以及节点．

The modeling of roof has become the focus of today's architecture form.But different from the top of the normal facade,the form of roof,as the fifth architecture facade,which is still neglected,needs special research. In history, the group composition of the fifth facades is formed by nature,which now call for architect's creation.Besides the construction of texture and color of the fifth facades,this thesis is concentrated on the composition principles and rules in the abstract form of the fifth facades,which are combined with the outer space.Based on different form characteristics of different roof types,this composition is expressed in the extensive plane,axis,space enclosurement and node.