Experimentally determination of strength of timber beam elements

The timber structures are deformed in time due to different factors such as chemical, physical, biological and human-induced. Also, the timber structures that are damaged largely due to static and dynamic loads, fail to satisfy under excessive loads. In order to increase of strength of timber structure elements, to protect them and to hand down the next generations in safe, the timber elements need to be reinforced. Within the scope of this study, bending tests of 8x20x20 cm pine solid, pine attached, spruce solid, spruce attached and spruce mixed attached timber beam elements under two point loads have been performed. Timber elements have been manufactured by ALANYALI ENTEGRE AHŞAP SAN. İNŞ.NAKL.TURZ.İHR.TİC. A.Ş. Keeping to TS 5497 EN 408 Standard, the experiments which are subject to the test apparatus in accordance with the method of determination of flexibility modulus in the global bending have been applied to the beam elements. The loads allowed by the standards have been applied and the load-displacement and moment-curvature graphs have been plotted. As a result of the tests, the failure loads, average failure loads, maximum displacements, moments and curvature values occurring under failure loads have been measured. According to this, which timber element has high strength has been determined comparatively.