Lateral shear performance of sheathed post-and-beam wooden structures with small panels  

作　　者：Weiguo LONG Wenfan LU Yifeng LIU Qiuji LI Jiajia OU Peng PAN 

机构地区：[1]China Southwest Architectural Design and Research Institute Co.Ltd.,Chengdu 610042,China [2]Civil Engineering Department,Tsinghua University,Beijing 100084,China

出　　处：《Frontiers of Structural and Civil Engineering》2023年第7期1117-1131,共15页结构与土木工程前沿（英文版）

基　　金：supporting this study with a research grant(No.2019YFD1101001).

摘　　要：Sheathed post-and-beam wooden structures are distinct from light-wood structures.They allow for using sheathing panels that are smaller(0.91 m×1.82 m)than standard-sized panels(1.22 m×2.44 m or 2.44 m×2.44 m).Evidence indicates that nail spacing and panel thickness determine the lateral capacity of the wood frame shear walls.To verify the lateral shear performance of wood frame shear walls with smaller panels,we subjected 13 shear walls,measuring 0.91 m in width and 2.925 m in height,to a low-cycle cyclic loading test with three kinds of nail spacing and three panel thicknesses.A nonlinear numerical simulation analysis of the wall was conducted using ABAQUS finite element(FE)software,where a custom nonlinear spring element was used to simulate the sheathing-frame connection.The results indicate that the hysteretic performance of the walls was mainly determined by the hysteretic performance of the sheathing-frame connection.When same nail specifications were adopted,the stiffness and bearing capacity of the walls were inversely related to the nail spacing and directly related to the panel thickness.The shear wall remained in the elastic stage when the drift was 1/250 rad and ductility coefficients were all greater than 2.5,which satisfied the deformation requirements of residential structures.Based on the test and FE analysis results,the shear strength of the post-and-beam wooden structures with sheathed walls was determined.

关 键 词：post-and-beam wooden structures with sheathed walls low reversed cyclic loading bearing capacity STIFFNESS numerical simulation 

分 类 号：TG1[金属学及工艺—金属学]