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Moisture conditions of rain-exposed glue laminated timber members: the effect of different detailing : the effect of different detailing

Niklewski, Jonas LU ; Isaksson, Tord; Frühwald Hansson, Eva LU and Thelandersson, Sven LU (2017) In Wood Material Science and Engineering
Abstract
In performance-based durability design, relating the in-use conditions of wooden members to their moisture content is an important step. In the present study, the effects of detail design on the wood moisture content of glulam members are investigated experimentally. The moisture content of glulam members, designed with various connection details and structural protection, was monitored at 18 different measuring points (n = 3) by use of resistance-type moisture sensors for a period of a year. The effects of detail design are studied by comparing the moisture content of various details to that of a freely exposed beam. As expected, the design of the details was clearly reflected by their moisture content. Efforts to protect the wood were... (More)
In performance-based durability design, relating the in-use conditions of wooden members to their moisture content is an important step. In the present study, the effects of detail design on the wood moisture content of glulam members are investigated experimentally. The moisture content of glulam members, designed with various connection details and structural protection, was monitored at 18 different measuring points (n = 3) by use of resistance-type moisture sensors for a period of a year. The effects of detail design are studied by comparing the moisture content of various details to that of a freely exposed beam. As expected, the design of the details was clearly reflected by their moisture content. Efforts to protect the wood were favourable in most cases, although only complete shelter kept the moisture content consistently below the level critical for the occurrence of decay. In order to relate the effects of moisture traps to the climate, a three-parameter empirical model was constructed and fitted to the experimental results. The model was able to capture the main features of the measurements and was used in order to characterize the performance of details in terms of their response to weather. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
epub
subject
in
Wood Material Science and Engineering
pages
12 pages
publisher
Taylor & Francis
external identifiers
  • scopus:85031501083
ISSN
1748-0272
DOI
10.1080/17480272.2017.1384758
language
English
LU publication?
yes
id
32eb6b90-eca4-46c3-9ddf-8c7f25de628a
date added to LUP
2017-08-18 17:28:03
date last changed
2018-01-07 12:15:15
@article{32eb6b90-eca4-46c3-9ddf-8c7f25de628a,
  abstract     = {In performance-based durability design, relating the in-use conditions of wooden members to their moisture content is an important step. In the present study, the effects of detail design on the wood moisture content of glulam members are investigated experimentally. The moisture content of glulam members, designed with various connection details and structural protection, was monitored at 18 different measuring points (n = 3) by use of resistance-type moisture sensors for a period of a year. The effects of detail design are studied by comparing the moisture content of various details to that of a freely exposed beam. As expected, the design of the details was clearly reflected by their moisture content. Efforts to protect the wood were favourable in most cases, although only complete shelter kept the moisture content consistently below the level critical for the occurrence of decay. In order to relate the effects of moisture traps to the climate, a three-parameter empirical model was constructed and fitted to the experimental results. The model was able to capture the main features of the measurements and was used in order to characterize the performance of details in terms of their response to weather.},
  author       = {Niklewski, Jonas and Isaksson, Tord and Frühwald Hansson, Eva and Thelandersson, Sven},
  issn         = {1748-0272},
  language     = {eng},
  month        = {10},
  pages        = {12},
  publisher    = {Taylor & Francis},
  series       = {Wood Material Science and Engineering},
  title        = {Moisture conditions of rain-exposed glue laminated timber members: the effect of different detailing : the effect of different detailing},
  url          = {http://dx.doi.org/10.1080/17480272.2017.1384758},
  year         = {2017},
}