Modern construction projects such as high-rise buildings require increasingly lighter and stronger wood frame shear walls. The stress level of the edge zone in the sheathing panel is generally larger than that of the middle zone under lateral loading, and the mechanical properties of wood-based panels are positively related with density. A series of fast-growing poplar plywood with a marginal or overall densification were prepared in this study for use as wood shear wall sheathing panels. The plywood density was controlled to 550, 550 (edge, 650), 550 (edge, 840), and 650 kg$\cdot$m⁻³, then full-scaled walls sheathed with the samples were monotonically loaded and compared against a wall sheathed with 12mm OSB to determine the effects of densification. The elastic lateral stiffness of the densified plywood sheathing wall with marginal density of 650 and 840 kg$\cdot$m⁻³, relative to 550 kg$\cdot$m⁻³, increased by 39.8% and 47.8% as the ultimate bearing capacity was increased by 15.5% and 37%, which is better than the commonly-used OSB sheathing wall accompanied by slightly lower ductility. The lateral behavior of the plywood sheathing wall appears to increase as density increases. The marginal-densified plywood can substitute for overall densified material as it presents nearly identical lateral behavior when used as a wood shear wall sheathing panel. The wall with marginal density of 840 kg$\cdot$m⁻³ showed the best overall lateral performance in this experiment. Relative error was controlled within 10% using the rheological model proposed by Casagrande to theoretically verify the lateral bearing capacity and lateral displacement of the test wall.

高层建筑等现代建筑项目需要越来越轻、强度更高的木框架剪力墙。在横向荷载作用下，覆板边缘区的应力水平一般大于中间区，人造板的力学性能与密度呈正相关。在本研究中制备了一系列具有边缘或整体致密化的快速生长的杨树胶合板，用作木剪力墙护板。胶合板密度控制在550、550（边650）、550（边840）、650公斤$\cdot$m ^-3，然后单调加载覆盖有样品的全尺寸墙壁，并与覆盖有 12 毫米 OSB 的墙壁进行比较以确定致密化的影响。边际密度为650和840 kg的致密胶合板护套墙的弹性侧向刚度$\cdot$m ^-3，相对于 550 kg$\cdot$m ^-3，随着极限承载力分别提高15.5%和37%，分别提高了39.8%和47.8%，优于常用的OSB护套墙，但延性略低。随着密度的增加，胶合板外墙的横向行为似乎也增加了。边缘致密胶合板可以替代整体致密材料，因为当用作木材剪力墙护板时，它呈现出几乎相同的横向行为。边际密度为840公斤的墙$\cdot$m ^-3在该实验中表现出最佳的整体横向性能。利用Casagrande提出的流变模型将相对误差控制在10%以内，从理论上验证了试验墙的侧向承载力和侧向位移。