《DECOMPOSITION FARM: STAIRWAY》（分解楼梯）是一个临时装置，为建筑领域的建筑垃圾环境问题提供了一个可能的解决方案。建筑业的二氧化碳排放量在2020年达到最高水平，占所有能源相关排放量的38%。在韩国，甚至不存在回收垃圾的统计数据。聚苯乙烯被称为聚苯乙烯泡沫塑料，在500年内被生物降解。研究人员最近证实，粉虫;这种甲虫的幼虫可以吃聚苯乙烯，通过胃酶分解，排泄出安全的物质，足以种植庄稼。
采用ABB公司的IRB-4600型6轴工业机械臂，以聚苯乙烯为材料构建这种可消化结构。主要的设计方法依赖于连接在机械臂末端的1.5米宽的热丝切割器，它可以切割出大块的泡沫。以操纵直线的方式将线材作为设计约束，所有形状均由直纹面构成。在几何学中，如果在S的每一点上都有一条直线，那么曲面S就是直纹。在19世纪末没有任何建模软件的情况下，安东尼·高迪应用直纹曲面的形式来简化建模，因为它们是由直线构成的。现在，通过精密的机器人控制，成千上万的计算机生成的表面被精心地布尔化，从体积质量中分离出来。
雕刻的聚苯乙烯泡沫被钻出大量的洞，为粉虫提供栖息地。粉虫吃并消化聚苯乙烯，然后排出无害的粪便。这个过程为苔藓提供营养，也附着在泡沫上:它最终在人工环境中建立了一个新的生态系统。经常提供粉虫，这种人造结构融入了自然。线性图案的元素聚集成一个大的螺旋楼梯，将人类纳入这个系统循环。这个激进的实验可以为建筑领域提供一种新的可持续发展方法，而不仅仅是零碳建筑，而是负碳建筑生命周期。
Decomposition Farm: Stairway is a temporary installation suggesting one possible solution of the environmental issues regarding of construction waste in architectural field. The amount of carbon dioxide emitted from construction industry reached the highest level in 2020, accounting for 38% of all energy-related emissions. The recycling statistics of Styrofoam waste from demolition does not even exist in South Korea. Polystyrene well known as Styrofoam is biodegraded in 500 years. Researchers recently confirm that mealworm; the larva of the beetle can eat polystyrene, decompose through its stomach enzyme and excrete in safe substance, enough to grow crops.
To build this being-digested structure, made of polystyrene, 6-axis industrial robotic arm (IRB-4600 by ABB) is employed. The main design methodology relies on the 1.5-meter-wide hot wire cutter attached at the end of robotic arm, which can carve out a chunk of foam. To manipulate straight lines of how wire as a design constraint, all shapes are made of ruled surface. In geometry, a surface S is ruled if through every point of S there is a straight line that lies on the surface. Without any modeling software in the late 1800s, Antoni Gaudi applied the forms of ruled surface to simplify the modeling in that they are constructed from straight lines. Now, thousands of computer-generated surfaces are boolean-ed out elaborately from the volumetric mass through the exquisite robot control.
Carved polystyrene foams are drilled for a large number of holes to provide habitat of mealworms. Mealworms eat and digest polystyrene, then excrete in harmless feces. This process supplies nourishment to moss, also attached to the foam: it eventually sets a new ecosystem in the artificial environment. Mealworms are provided frequently and this man-made structure gets melted into nature. Linear-patterned elements are aggregated into a large spiral staircase, that involves human into this systematic cycle. This radical experiment can suggest a new sustainable approach in architectural field, more than carbon-zero construction – carbon-negative building life cycle.
