FLOATING URBAN BIO-MASS: SUPERIOR “SECONDARY ECO-SYSTEM” Planning
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2016-9-1   Dasong Wang  王大嵩,Fengjiao Ge 葛凤姣,Lin Zhang张琳

From Wildness to Information Era, rapid urbanization and immoderate resource consumption has not only devastated the natural environment but also bred numerous urban problems. After recalling the evolution process from nature to urban, we audaciously purpose a concept of building a “Floating, Evolutionary, Secondary Ecosystem” over the city, aiming to enable the future city to transform back to the superior eco-condition of Wildness allowing civilians to dwell between nature and urban enjoyably.
从远古时期到如今的信息时代,高速的城市化和无节制的资源消耗不仅使得自然环境满目疮痍也带来了无数的城市问题。通过梳理从自然到城市的历史演化进程,我们大胆提出在城市上空建立一个‘漂浮的’‘进化的’‘次级生态系统’的概念,旨在让未来城市可以再度回到远古时期最优化的自然生态环境条件:让城市居民可以在自然中诗意栖居。

Using Beijing CBD as example, several eco-techniques such as rainwater collection, photovoltaic, air purifying thin-film, and eco-phytoecommunity planting, are considered as measures in the “Floating City” to combat Beijing’s environmental problems of water and energy shortage, air pollution, heat-island, etc. Moreover, based on the concept of “Vertical Urban Functional Distribution,” we integrate functions as residence, interaction, and relaxing into the design, in which the complex horizontal transportation system could be minimized and residents would have a more affluent urban experience.
以北京国贸CBD区为例,在“漂浮城市”中采用雨水收集、太阳能电池、空气净化薄膜和生态植物群落种植等技术手段,旨在改善北京水资源能源短缺、空气污染、热岛效应等生态环境问题;此外,引入“城市功能垂直分层”的概念,在CBD区域上空的“漂浮城市”中融入居住、交流和休闲等城市功能,将繁杂的水平交通转化成垂直交通,并丰富人在城市中的自然体验。

In the overall design, the whole floating city is separated into three parts in the overall design: the components, the structure, and the façade. We extract correlation factors from the site as the parameter to generate and control the configuration. Firstly, we select four basic points with lower building density according to precise site analysis. Secondly, we use a random system to insert three different functions (residence, entertainment, interaction) with a certain ratio into the floating city. Except for the functional equivalence, the areas of these functions should also match with the bottom city. Finally, we use a genetic algorithm to optimize the sunshine amount by calculating the position and the area of the holes that we are trepanning on the upper platform.

在整体设计中,整个“漂浮城市”被分成“组件”、“结构”、“表皮”三个部分,并提取场地相关因子作为参数对其进行生成和控制。首先,通过分析场地的建筑密度,选取四个数值最低的点作为“基本点”;其次,利用“随机系统”将居住、交流和休闲三个功能按照一定比例植入“漂浮城市”中,并计算其面积使之于下方现存建筑功能等比对应;最后,利用“遗传算法”计算上方平台部分的开孔位置和面积以最小化对现存城市建筑的日照影响。

For the detailed design, firstly combining curve typing with quantity control can help us generate the most suitable combinations of our components. They can perfectly fit in with the current architectural form. Then, take advantage of the field system to control the variation tendency of the components both in plane and height. Next, the whole floating structure is generated by network system. Finally, for specific design on components, each component has its own parametric control according to particular analysis on using area, function, and form. 

在具体设计中,我们首先利用曲线分型控制和数量筛选,生成出最适应现存建筑形态的“漂浮元件”的组合形式;并利用“场系统”控制不同高度元件的形态变化趋势。然后,通过“网络系统”生成整个“漂浮城市”的结构部分。最后,在每个元件的具体设计中,我们详细分析了三种空间的使用面积、功能、形态等要求,分别对每个元件进行参数化控制和干扰。

 

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