Friction Energy Dissippation Mechanism And Mechanics Model Test On Tradition Wooden Structure Joint Region

Based on the traditional wooden structure node area as the research object, by using experimental method, the friction mechanism of traditional wood structure joints and mechanical model parameters, this paper mainly completes the following work:1.This paper measured the properties of hemlock used in test, including density, moisture content, compressive elastic modulus, shear modulus, Poisson’s ratio, it can provides a basis for the numerical simulation in the future.2.In this paper, it also measured the static friction and dynamic friction of wood grain and grain,grain and transverse, it can provide the basis for theoretical analysis.3.The model based on the traditional dwellings in Yunnan "a printed" and "YingZaoFaShi" as the background, selects four types of nodes-through tenon, dovetail tenon, Fang under the through tenon,half tenon, in order to study the effect of friction on energy consumption, respectively divide the above four nodes contact surface into before and after with oil. Through the low reversed cyclic loading test in contrast to change contact surface of the moment-rotation hysteresis curves, skeleton curves, stiffness degradation curve, ductility coefficient and equivalent viscous damping coefficient, in order to study the friction factors effection to the energy consumption of wood structure joint region, through the data shows, the friction factor for energy consumption of wood joints ie very large.On the basis of the above test, Do the quantitative analysis for the effect of friction factors on wood joint, it can provide the basis for restoring force model of traditional wooden structure joints which considering the friction factor.