木质胶合梁弯曲特性的理论分析

采用复合材料力学的方法 ,将木质胶合梁的三维空间问题简化为广义平面应力问题 ,分析了不同载荷作用下胶合梁的应力场分布 ,以及木材各向异性产生的附加应力场。用极值法求出最大应力的位置和大小 ,为木材和人造板在建筑上的应用提供理论依据。

Theoretical Analysis on Bending Characteristics of Glued Wood Based Beam

Using the compound material mechanics, the three dimensional space problem of glued wood based beam was modified to general plane problem, the stress field distribution of the beam under different loading and additional stress generated by anisotropy property of wood was analyzed. With limit value method, the paper has evaluated the largest stress and its site, and supplied theoretical basis for use of wood based material in architectural engineering.