项目名称: 玉双大楼改造设计
项目类型：改造/更新
项目地点：成都市玉双路2号
设计单位：門口建筑工作室
主创建筑师: 蔡克非、王玺
设计团队：高一宽、黄大力、李柔锋
摄影师：存在建筑
业主：成都城投侠客岛企业管理有限公司
设计时间（起迄年月）：2019.11-2020.01
建设时间（起迄年月）：2020.03-2020.07
建筑面积（平方米）：5100平方米
记得第一次进入玉双大厦是今年春天的一个上午，通过阴暗、狭小的电梯，进入四层高空间，阳光从顶棚洒下下来，有一种爱丽丝梦游仙境的感觉，这种感觉成为我们设计的起点，我们喜欢能够唤起一种万物复苏，春意盎然的气氛。
这里是一个经过数次加建的旧物业，下面三层是商业、火锅店，四层到七层是办公室，办公室环绕一个带透明天棚的中庭布置，因为室内是多次加建而成，内部充满了复杂的走廊和半层、平层交错的楼梯，好像一个迷宫一样，但是只要回到中庭，就能找到自己的位置。
于是中庭就是我们的设计重点，我们追溯着最初的印象，中庭以绿色为主题色，不同彩度的绿，层层变幻，在日光的晕染下，变幻出复杂的色彩，微妙的阳光色温的变化向使用者传递着与真实世界的连接，与时间的连接。
四层中庭如同西方城市的“广场”，是周遭办公交流、交汇的场所。我们用回廊、小亭子、低台分割空间，将大空间分割为视线通畅，分区清晰的小空间集合，使这个广场有了细分的空间层次，和精确的场所的定义，使这个空间具有某个层度上的“中国性”。
原有采光天棚进光量过大，常常有过曝的感觉，我们计划以吊顶遮挡局部玻璃顶棚的采光，因为采光顶棚不能受力，只能用回廊钢筋混凝土结构外挑，意外的获得了传统建筑飞檐的意向，与四层中庭的亭台楼阁互成对偶，共同构建了这个在老成都的“世外桃源”。
Project Principals: Kefei Cai, Xi Wang
Designers: Yikuan Gao 、Dali Huang, Roufeng Li
Designing Time: 2019.11-2020.01
Construction Completed: 2020.03-2020.07
Photographer：arch-exist
It was a morning time in the past spring that I first stepped into Yushuang Building, walking through a dark, narrow elevator, entering the four-storeyed space, with sunlight pouring down from the sun roof, which makes you feel being in the Wonderland. This has been the starting point of our design, aimed at creating an atmosphere of the full spring bringing everything back to life.
The property was an old building which had undergone several additional constructions, with the 3 floors in the lower part being shops and hotpot restaurants, the 4th-7th floors being office spaces surrounding an atrium setting with a transparent rooftop. There are numerous corridors and stepping stairs weaving into floors or half floors, like a labyrinth, owing to the fact of multiple additional constructions inside the building. However, you can never be lost if you find the way back to the atrium.
Therefore, the atrium becomes the focus of our design. Pursuing the original impression, we use green as the theme color for the atrium, with different tones of green resulting in a complex color change in each layer under the halo of sunlight. The subtle variation in the tone of sunlight reminds you of the connection to the real world and the continuation of time.
The atrium on the 4th floor is like the “plaza” in a western concept, acting as central point of the surrounding office spaces. We use winding corridors, small pavilions and low countertops to separate the large space into a bunch of small spaces with clear vision and partition, enabling the atrium with reasonable layers and accurate definition of the space, offering it a touch of Chinese style in some way.
It looks like the original lighting roof introduces too much sunlight, giving the impression of over-exposure, so that we’re thinking to use a suspension deck to block part of the sunlight from the glass roof. Because of the weakness of the roof, we had to use an over-hanging beam with a reinforced concrete structure extended from the winding corridors. By doing so, we unexpectedly entitled it with an image of traditional “Over-hanging eave”, posing as an antithesis to the pavilions in the atrium, consistently forming the Wonderland in the old town of Chengdu.
