The load factor in bolted timber joints under external tensile loads
Abstract These experiments sought to empirically determine how the initial tightening force influences the ratio of the axial bolt force to the tensile load (load factor) and the load required to separate the joint interface (interface separation load) in tensile bolted joints of glued laminated tim...
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Online Access: | https://doi.org/10.1186/s10086-020-01857-4 |
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doaj-01b8c8b26e514c84a5c6b5e4513220292021-02-21T12:28:14ZengSpringerOpenJournal of Wood Science1435-02111611-46632020-02-016611710.1186/s10086-020-01857-4The load factor in bolted timber joints under external tensile loadsDoppo Matsubara0Yoshiaki Wakashima1Hidemaru Shimizu2Akihisa Kitamori3Tokyo Metropolitan Industrial Technology Research InstituteToyama Prefectural Agricultural, Forestry & Fisheries Research CenterSugiyama Jogakuen UniversityResearch Institute for Sustainable Humanosphere, Kyoto UniversityAbstract These experiments sought to empirically determine how the initial tightening force influences the ratio of the axial bolt force to the tensile load (load factor) and the load required to separate the joint interface (interface separation load) in tensile bolted joints of glued laminated timber. Load factor decreases with increasing initial tightening force; however, this tendency is reduced the greater the washer–member-end distance. In addition, tensile stiffness increases with decreasing load factor, and the interface separation load increases with increasing initial tightening force. However, in actual testing, the joint interface separated at a lower load that predicted mathematically based on the load factor and initial tightening force.https://doi.org/10.1186/s10086-020-01857-4Load factorBolted timber jointsGlued laminated timberTightening force |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Doppo Matsubara Yoshiaki Wakashima Hidemaru Shimizu Akihisa Kitamori |
spellingShingle |
Doppo Matsubara Yoshiaki Wakashima Hidemaru Shimizu Akihisa Kitamori The load factor in bolted timber joints under external tensile loads Journal of Wood Science Load factor Bolted timber joints Glued laminated timber Tightening force |
author_facet |
Doppo Matsubara Yoshiaki Wakashima Hidemaru Shimizu Akihisa Kitamori |
author_sort |
Doppo Matsubara |
title |
The load factor in bolted timber joints under external tensile loads |
title_short |
The load factor in bolted timber joints under external tensile loads |
title_full |
The load factor in bolted timber joints under external tensile loads |
title_fullStr |
The load factor in bolted timber joints under external tensile loads |
title_full_unstemmed |
The load factor in bolted timber joints under external tensile loads |
title_sort |
load factor in bolted timber joints under external tensile loads |
publisher |
SpringerOpen |
series |
Journal of Wood Science |
issn |
1435-0211 1611-4663 |
publishDate |
2020-02-01 |
description |
Abstract These experiments sought to empirically determine how the initial tightening force influences the ratio of the axial bolt force to the tensile load (load factor) and the load required to separate the joint interface (interface separation load) in tensile bolted joints of glued laminated timber. Load factor decreases with increasing initial tightening force; however, this tendency is reduced the greater the washer–member-end distance. In addition, tensile stiffness increases with decreasing load factor, and the interface separation load increases with increasing initial tightening force. However, in actual testing, the joint interface separated at a lower load that predicted mathematically based on the load factor and initial tightening force. |
topic |
Load factor Bolted timber joints Glued laminated timber Tightening force |
url |
https://doi.org/10.1186/s10086-020-01857-4 |
work_keys_str_mv |
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