“…Studies have been done on how the characteristics of glulam are affected by the reinforcement materials, such as steel bars, flax fiber, carbon fiber, etc. [ 5 , 7 , [10] , [11] , [12] , [13] , [14] , [15] ], finger joint [ 2 , 16 ], glue line [ 17 ], number of layers [ 18 ], and assembly pattern [ 9 , 19 ].…”