Regenerative Tree

The “Regenerative Tree” is a proposal for a next-generation skyscraper prototype aimed at significantly reducing CO2 emissions throughout its lifecycle. Through architectural design that accommodates diverse work styles and future conversions, optimized structural design, the use of wood, and environmentally friendly MEP design, this skyscraper promotes decarbonization not only during its operational phase, but also during new construction, renovation, and demolition. This comprehensive approach leads to a 40% reduction in whole life carbon. 1,CO2 emissions are significantly reduced by optimizing the structure. Conventional office with wide, column-free spaces recquire large amounts of steel, due to long-span structures and the concentration of earthquake-resisting members around the core. In Regenerative Tree, columns and seismic-resistant braces are placed in structurally rational positions and the perimeter is made of timber. This reduces the use of steel, better accommodates changes in building use and significantly cuts CO2 emissions during construction. Timber is adopted for the perimeter frame, and CLT for the office slabs to minimize building weight. A seismic isolation system further decreases steel requirements by mitigating seismic shaking. 2,Biomimetic technology was actively introduced to thoroughly simplify and improve the environmental performance of MEP planning. The heat recovery system mimics the "Wonder net," which prevents drops in body temperature by exchanging heat between the arteries and veins. Evaporative cooling by spraying water is modeled on the human body's sweating thermoregulation function, while natural ventilation and lighting draw inspiration from the spiral phyllotaxis of plants, which evolved for photosynthesis. 3, As part of an efficient people flow plan, local elevators that stop at each floor are replaced with a new system combining shuttle elevators, which are suitable for long-distance transportation, with escalators, which are suitable for mass transit. This will enable a significant reduction in electricity consumption while maintaining transportation capacity. 4, Central void, “stepped floors,” and spiraling shared spaces are created to accommodate diverse workstyles. These spaces are distinct from conventional homogenous single-floor spaces, embrace nature, and foster a variety of activities. The central void is an expandable MEP route, and can function as a construction logistics route when the building's use changes. It is estimated that incorporating these elements can reduce the Regenerative Tree’s whole life carbon emissions by up to 40%.