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成都交子大道是一条两公里长东西向的林荫道,两侧各有约25米宽的人行景观空间,其中散布着二十余个规模几百平米不等的服务驿站,本案即为位于N4-3地块的餐饮建筑。餐厅面积约600平米,南侧的两层用餐区最大化地利用景观步道,厨房与后勤空间则靠北集中。场地南面的镜面水池是进入建筑之前重要的过渡空间,水面映射着舒展的屋面与天空,让人们在浮光掠影中放松心情。
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建筑的量体希望建立起坡屋顶的传统四川民居与简洁利落的现代城市之间的对话。餐厅东立面延续了四川传统木结构建筑倾斜的屋顶轮廓与立面肌理,西立面衔接了交子大道周边方整的建筑语汇。两者迥异的形体由一个扭转的屋面自然地连接在一起。屋面的轮廓轻如羽翼,动态起伏的双曲面顺着蜿蜒的屋脊线延展,轻盈地覆盖着下部的餐厅与景观,给予用餐的人们自由奔放、充满动感的空间氛围。
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本案结构设计的最大挑战在于如何实现屋面在南侧超过4米的悬挑,建筑在前排钢柱的基础上增加了四根斜柱以支撑木梁,使屋面能够低垂于镜面水池之上而无需落柱,同时形塑了沿着幕墙的狭长挑空空间,让在一层的人们也能看见二层生动的木结构。
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建筑立面设计尽可能的通透以突出木结构在室内外的连续感受。南北侧的玻璃幕墙呼应了屋顶木梁的走向,自然而然地形成了连续转折的动态轮廓。在室内灯光的照亮下,街上的行人可以从外侧透过玻璃清晰地看到整个木屋顶。
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