Urban Renewal Using Gap-Spaces between Buildings

本研究在探讨废弃建筑物间隙空间的潜在资源价值后，旨在开发技术，以提高空间的有效利用，改善抗震和节能性能，并促进现有建筑物的更新。关于改善20世纪60年代建造的小型建筑物的抗震性能，除了结构强度差外，主要问题是大小大致相同的邻近建筑物的结构连接不能有效吸收地震能量。本文的解决方案是在建筑物顶部的刚性隔震框架上增加一个小质量，并证明了这种改造技术可以大大减少现有结构的扭转、挠度和响应。减少供暖和制冷能耗的基本思想是通过包围一组相邻的小建筑来减少热负荷，即，封闭建筑物之间的间隙空间，并在现有的立面和屋顶上增加第二层表皮。热响应分析的结果表明，在冬季供暖的能源可以节省50%以上，通过简单地关闭建筑物之间的间隙空间，并进一步节省能源，可以通过结合它与双层皮外墙和额外的屋顶蒙皮。为了方便更新工作的建筑设备，多层服务机架单元已经开发和测试。在建筑物之间的间隙空间中组装的钢单元悬挂在屋顶上，而不会损坏现有结构和饰面，每个机架可以承载最大500公斤的管道，管道，冷却单元，锅炉等。

Having explored potential resource values of abandoned gap-spaces between buildings, this research was aimed at developing technologies to enhance efficient use of spaces, improve earthquake-proof and energy-saving performances and facilitate renewal of building services of existing building stocks.With regard to improving earthquake-proof performance of small building built in 1960's, the major problem apart from their poor structural strength is the fact that structural connection of adjacent buildings of more or less the same size would not result in effective absorption of seismic energy. Our solution is to add a small mass over the rigid isolator frame built on top of the buildings, and with this retrofitting technology it was proved that torsion, deflection and response of the existing structures can be greatly reducedThe basic idea to minimize energy consumption for heating and cooling is to reduce thermal load by enveloping a group of adjacent small buildings, i.e. closing gap-spaces between building and adding second skins to existing facades and roofs. The result of thermal response analyses have shown that more than 50% of energy for heating during Winter can be saved by simply closing gap-spaces between buildings and that further energy saving can be achieved by combining it with double skin facades and additional roof skins.In order to facilitate renewal work of building services, a multi-storey service rack unit has been developed and tested. The steel unit, assembled in the gap-space between buildings and suspended from the roof top without damaging existing structure and finishing, holds racks each of which can carry maximum 500kg of piping, ducting, cooling units, boilers, etc. The three storey high test assembly was completed within one day.