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首页> 外文期刊>Journal of Building Survey, Appraisal & Valuation >A dose of Deansgate Disorder
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A dose of Deansgate Disorder

机译：一剂院门疾病

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Having been a journal editor for many years now, writing four editorials per year, there comes a time when finding a new innovative topic becomes very difficult, and one must look backwards in practice for suitable material. Deansgate Disorder - as it is known in Manchester, and Regent Street Disease elsewhere - is still a current problem for building surveyors. The author was recently talking to a surveyor in Manchester who is currently dealing with an outbreak that threatens a multi-million-pound purchase. What is Deansgate Disorder? It is the situation that occurs when a steel or iron-framed building is tightly cladded with stone, brick or terracotta. The technique of fixing cladding directly to metal frames endured until the 1950s, and does not allow for any expansion in the volume of the frame. A gap would allow the metal to expand without causing stresses in the cladding. The frames may have survived differential thermal movement during the hot London summers or the Arctic Manchester winters, but should they suffer corrosion, the expansion in volume caused by iron oxide - around seven times - causes the cladding to come under stress and to fail, sometimes dramatically. Post-1950s technology of always leaving a gap between the frame and the cladding removed this problem, although a strong case can be argued that having advance warning of severe corrosion in the structural frame of a building, even at the cost of expensive cladding repairs, is not a bad thing. There are, however, a significant number of older buildings in high-price real estate locations (as the alternative names of the condition suggest) that were built without any gaps.
机译：担任期刊编辑多年以来，每年撰写四篇社论，有时会很难找到一个新的创新主题，并且必须在实践中回顾过去以寻找合适的材料。 Deansgate病-在曼彻斯特和其他地方Regent Street病中众所​​周知-对于建筑测量师来说仍然是当前的问题。提交人最近正在与曼彻斯特的一名测量员进行交谈，该测量员目前正在处理可能威胁数百万英镑购买的疫情。什么是Deansgate障碍？当钢结构或铁构架的建筑物被石材，砖块或兵马俑紧密覆盖时，就会发生这种情况。将覆层直接固定到金属框架的技术一直持续到1950年代，并且不允许框架的体积有任何扩大。间隙将使金属膨胀而不会在包层中产生应力。在炎热的伦敦夏季或北极曼彻斯特冬季，车架可能会经受住不同的热运动，但是，如果车架遭受腐蚀，由氧化铁引起的体积膨胀（大约是七倍）会导致包壳受到应力并失效，有时戏剧性的1950年代后的技术总是在框架和覆层之间留出间隙，从而解决了这个问题，尽管有充分的理由可以说，即使在维修昂贵的覆层费用的情况下，也可以预先警告建筑物的结构框架发生严重腐蚀，不是一件坏事。但是，在高价房地产位置（如条件的替代名称所示）中，有许多较旧的建筑物没有任何间隙。

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