Factorial Study on the Impact of Climate Change on Freeze-Thaw Damage, Mould Growth and Wood Decay in Solid Masonry Walls in Brussels
Factorial Study on the Impact of Climate Change on Freeze-Thaw Damage, Mould Growth and Wood Decay in Solid Masonry Walls in Brussels
复制标题
气候变化对布鲁塞尔实心砖石墙冻融损坏、霉菌生长和木材腐烂影响的析因研究
作者：
I. Vandemeulebroucke;S. Caluwaerts;N. V. Bossche
以往的研究表明，气候变化对实心砌体外墙的破坏风险有影响。为了保护这些有价值的建筑物，重要的是要确定原来的和内部绝缘的情况下预计的损害变化。由于历史砖石涵盖了广泛的属性，它是未知的气候变化的影响是如何敏感的变化，在不同的参数，如壁厚，砖类型，等因子的研究，以确定气候变化对冻融风险，霉菌生长和木材腐烂的实心砖石在布鲁塞尔，比利时。结果发现，临界方位等于临界风雨方位，不随时间变化。此外，冻融风险普遍下降，而霉菌生长和木材腐烂的变化取决于气候情景。在评估气候变化影响时，了解砖的类型和雨水暴露系数是最重要的。对于冻融风险和木材腐烂，研究发现，模拟一个壁厚的非绝缘和一个绝缘的情况下，足以代表气候变化的影响。最后，气候变化的影响通常不能弥补使用内部绝缘后损害的增加。
Previous studies show that climate change has an impact on the damage risks in solid masonry facades. To conserve these valuable buildings, it is important to determine the projected change in damages for the original and internally insulated cases. Since historical masonry covers a wide range of properties, it is unknown how sensitive the climate change impact is to variations in different parameters, such as wall thickness, brick type, etc. A factorial study is performed to determine the climate change impact on freeze-thaw risk, mould growth and wood decay in solid masonry in Brussels, Belgium. It is found that the critical orientation equals the critical wind-driven rain orientation and does not change over time. Further, the freeze-thaw risk is generally decreasing, whereas the change in mould growth and wood decay depends on the climate scenario. Knowing the brick type and rain exposure coefficient is most important when assessing the climate change impact. For freeze-thaw risk and wood decay, it is found that simulating one wall thickness for the uninsulated and one insulated case is sufficient to represent the climate change impact. Finally, the effects of climate change generally do not compensate for the increase in damage after the application of internal insulation.