caa a22 4500 463247116 CHVBK 20180405153329.0 cr unu---uuuuu 170326e20070201xx s 000 0 eng 10.1007/s10086-006-0818-z doi (NATIONALLICENCE)springer-10.1007/s10086-006-0818-z Effect of laminate configuration on the modulus of elasticity of glulam evaluated using a strain gauge method [Elektronische Daten] [Te-Hsin Yang, Song-Yung Wang, Cheng-Jung Lin, Ming-Jer Tsai, Far-Ching Lin] The purpose of this study was to measure the strain of glulam laminae by affixing a strain gauge at the central axis of the lateral face in order to determine the effect of the configuration of the glulam. Japanese cedar and southern pine were used in the study. The strain and stress of the laminae during the bending test were recorded, and the modulus of elasticity (MOE) was calculated. The influence of the MOE of the adhesive layers was also considered. Results showed that the MOE of the laminated elements increased as its specific gravity increased, although the specific gravity was not the only factor evaluated. The MOE of glulam (E bsg) measured by the strain gauge method was very close to the observed MOE of glulam (E b) and a significant linear relationship was identified. The MOE (e) of laminae measured by the strain gauge method was very close to that determined (E) under the "free condition” before bonding. The difference between the modified MOE (E bsa) and E bsg was not significant. The MOE of glulams made of heterogeneously graded lumbers were about 23% and 31% larger than the average MOE of their laminae for Japanese cedar and southern pine, respectively. The actual neutral axis was just below the longitudinal center line. It shifted slightly within the proportional limit range and moved downward when the load increased. The Japan Wood Research Society, 2006 Glulam nationallicence Configuration nationallicence Strain gauge nationallicence Lamination nationallicence Yang Te-Hsin School of Forest Resource and Conservation, College of Bio-Resource and Agriculture, National Taiwan University, Taipei, 106, Taiwan, ROC aut Wang Song-Yung School of Forest Resource and Conservation, College of Bio-Resource and Agriculture, National Taiwan University, Taipei, 106, Taiwan, ROC aut Lin Cheng-Jung Taiwan Forest Research Institute, Taipei, Taiwan, ROC aut Tsai Ming-Jer School of Forest Resource and Conservation, College of Bio-Resource and Agriculture, National Taiwan University, Taipei, 106, Taiwan, ROC aut Lin Far-Ching School of Forest Resource and Conservation, College of Bio-Resource and Agriculture, National Taiwan University, Taipei, 106, Taiwan, ROC aut Journal of Wood Science Springer-Verlag 53/1(2007-02-01), 31-39 1435-0211 53:1<31 2007 53 10086 https://doi.org/10.1007/s10086-006-0818-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10086-006-0818-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yang Te-Hsin School of Forest Resource and Conservation, College of Bio-Resource and Agriculture, National Taiwan University, Taipei, 106, Taiwan, ROC aut NATIONALLICENCE 700 1- Wang Song-Yung School of Forest Resource and Conservation, College of Bio-Resource and Agriculture, National Taiwan University, Taipei, 106, Taiwan, ROC aut NATIONALLICENCE 700 1- Lin Cheng-Jung Taiwan Forest Research Institute, Taipei, Taiwan, ROC aut NATIONALLICENCE 700 1- Tsai Ming-Jer School of Forest Resource and Conservation, College of Bio-Resource and Agriculture, National Taiwan University, Taipei, 106, Taiwan, ROC aut NATIONALLICENCE 700 1- Lin Far-Ching School of Forest Resource and Conservation, College of Bio-Resource and Agriculture, National Taiwan University, Taipei, 106, Taiwan, ROC aut NATIONALLICENCE 773 0- Journal of Wood Science Springer-Verlag 53/1(2007-02-01), 31-39 1435-0211 53:1<31 2007 53 10086 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer