| Title |
A Study on the Bending Behavior Characteristics of a Glued-laminated Beam by the Small Size Thinning Timber |
| Authors |
Park Hak-Kil ; Han Jae-Su ; Hwang Sun-Woo |
| Keywords |
bending behavior characteristics ; thinning timber ; glued-laminated beam ; resistance performance ; strength and serviceability ; practicability ; ultimate strength ; limit state |
| Abstract |
The purpose of this study is to examine the bending behavior characteristics for the glued-laminated beam by the small size thinning timber. We have studied on the subject through full size bending test by the static loading, and verified the results analytically to the same models with the energy method. The size of the 4 test specimens is 15cm×30cm with 3.6m length. Test results have been well corresponded with the analytical results. Especially, the energy method is remarkably efficient to verify the relationship of the load-large deflection to this test model. The ultimate strength of the bending capacity has been shown over 10.3 t·m for each test specimen, and the maximum deflection is above l/120 (3.0cm), which is almost twice of a allowable serviceability limit state requirement. Load-deflection curve has been conserved almost elastic state until the strength reached the ultimate strength. These mean that the test samples have a good reliability on the both side of the strength and the serviceability for the purpose of the practicability of the glued-laminated beam which was made of the korean thinning timber with small size diameter. |