很早以前,工程界就已注意到了某些遭到破坏的装配式建筑缺乏结构连续性这一问题。1968年5月英国伦敦的卢兰堡一座二十二层装配式高层住宅,第十八层某单元厨房的煤气爆炸引致外墙倒塌(图1 a),继而十八层以上各层厨房相继下塌,凡乎片砖不留地坠落到十八层楼面之上,紧接着以下各层也均遭破坏(图1 b)。 Very early on, the engineering community had noticed the lack of structural continuity in some of the damaged prefabricated buildings. A 22-story high-rise residential building in Lulanbao, London, United Kingdom, in May 1968, a gas explosion in a kitchen unit on the 18th floor led to the collapse of the outer wall (Fig. 1a), followed by successive kitchens on floors 18 and above. As soon as it collapsed, the tiles fell to the top of the 18-storey floor and the following layers were also destroyed (Figure 1b).