| Title |
Scenario-based Analysis of Construction Cost and Duration for Structural Timber Work in Mid- to High-rise Mass Timber Buildings |
| Authors |
배상무(Bae, Sangmu) ; 최경석(Choi, Gyeong-Seok) ; 강도훈(Kang, Do-Hun) ; 최현중(Choi, Hyun-Jung) |
| DOI |
https://doi.org/10.5659/JAIK.2026.42.5.387 |
| Keywords |
Mass Timber Building; Structural Timber Work; Engineered Wood; Construction Cost; Construction Duration |
| Abstract |
Engineered wood supply directly affects the construction cost and duration of structural timber work in mid- to high-rise mass timber
buildings. This study quantitatively analyzes these impacts under different supply scenarios. A BIM-based model is used to calculate the
volumetric quantities of engineered wood structural members, followed by comparative analysis under domestic and overseas supply
conditions. The results show that the unit cost is 7.55 million KRW per cubic meter for domestic supply and 4.55 million KRW per cubic
meter for overseas supply including maritime transport, representing a 39.8 percent reduction. In terms of construction duration, the domestic
supply scenario requires 895 days, while the overseas supply scenario requires 127 days including shipping time, resulting in an 85.8 percent
reduction. These findings indicate that construction cost and duration are strongly influenced by the scale and maturity of engineered wood
industrial infrastructure. Given the early stage of domestic industry development, the complementary use of overseas infrastructure offers a
practical approach to support the adoption of mid- to high-rise mass timber buildings. The derived indicators also support preliminary cost
and schedule estimation during early planning stages. |