Urban Renewal Using Gap-Spaces between Buildings

本研究探索了建筑物之间废弃空隙的潜在资源价值，旨在开发技术，以提高空间的有效利用，提高抗震和节能性能，并促进现有建筑存量的建筑服务更新。60年代建造的小型建筑在提高抗震性能方面，除了结构强度差外，主要的问题是相邻大小大致相同的建筑物的结构连接不能有效吸收地震能量。我们的解决方案是在建筑顶部的刚性隔离框架上增加一个小质量，通过这种改造技术，可以大大减少现有结构的扭转、挠度和响应。将供暖和制冷能耗降至最低的基本思路是通过包围一组相邻的小建筑来减少热负荷，即关闭建筑之间的空隙，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，通过简单地关闭建筑物之间的间隙，可以节省超过50%的冬季供暖能源，并且通过将其与双层外墙和额外的屋顶表皮相结合，可以进一步节省能源。为方便楼宇设施的更新工作，屋宇署开发并测试了一个多层维修机架装置。钢结构单元组装在建筑物之间的空隙中，悬挂在屋顶上，不会损坏现有的结构和装饰，每个机架可以承载最多500公斤的管道、管道、冷却装置、锅炉等。三层楼高的测试组件在一天内完成。

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.