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Long term in-situ measurements of displacement, temperature and relative humidity in a multi storey residential CLT building
Linnéuniversitetet, Institutionen för byggteknik (BY).ORCID-id: 0000-0002-5333-0682
Linnéuniversitetet, Institutionen för byggteknik (BY).
Linnéuniversitetet, Institutionen för byggteknik (BY).
2014 (engelsk)Inngår i: WCTE 2014 - World Conference on Timber Engineering, Proceedings, World Conference on Timber Engineering (WCTE) , 2014, s. 398-405Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

In a multi-storey residential housing project comprising of four 8-storey timber buildings, the bottom storeybeing designed with concrete and storeys 2-8 in timber, the vertical relative displacement, the temperature and the relativehumidity (RH) along one vertical channel in the external wall of one building has been monitored. Measurements startedduring construction and presented herein are results of 6.5 years of in-situ measurements. Displacement data was monitoredstorey-by-storey, with a sampling frequency of 1 measurement every 10-60 minutes. In another of the four buildingsadditional temperature and relative humidity measurements have been ongoing for about 5.5 years. These temperature andRH measurements were performed at six different locations in the building, at each location in eight positions through theexterior wall with a sampling frequency of 1 measurement every 15 minutes. The results show that the total verticaldisplacement over six storeys after 6.5 years of service life is approximately 23 mm as a yearly average, and over the yearthe displacement varies from this value by approximately ±2 mm. The main cause for the relative displacement is thedecrease of moisture content in the wood material leading to shrinkage after completion of the building. The resultsobtained show also that the exterior wall design of the building behaves well in terms of not comprising a general risk fordamp or mould in the timber core of the external walls.

sted, utgiver, år, opplag, sider
World Conference on Timber Engineering (WCTE) , 2014. s. 398-405
Emneord [en]
CLT, long term displacement, relative humidity, temperature, in-situ measurement
HSV kategori
Identifikatorer
URN: urn:nbn:se:kau:diva-74389Scopus ID: 2-s2.0-84924957543OAI: oai:DiVA.org:kau-74389DiVA, id: diva2:1346585
Konferanse
World Conference on Timber Engineering, Quebuec City, 10-14 August
Tilgjengelig fra: 2014-05-28 Laget: 2019-08-28bibliografisk kontrollert

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Serrano, ErikEnquist, BertilVessby, Johan

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