기둥-보에 SIP 패널을 설치한 복합구조의 개발 = Development of the Composite Structure of Post and Beam with SIP Panel

다국어 초록 (Multilingual Abstract)

This research was performed to develop highly insulated wall component for heavy timber post and beam structure to improve the energy efficiency and the shear resistance against lateral load. In this study, SIP panel composed of 11.1mm thick OSB face and back glued to a 90mm thick styrofoam at center was used as the component providing the shear-resistance. To attach the SIP panel to the post and beam structure, three different methods depending to the relative position of SIP to the post and beam were employed, which include the followings: outer attachment (E-SIP), middle attachment (P-SIP), inner attachment (N-SIP)
300mm long self tapping screws were used with two spacing of 150mm and 300mm to attach SIP panel to timber structure for the specimen types of E-SIP. in case of P-SIP, 180mm long self tapping screws were used with spacing of 150mm and 300mm to attach SIP panel to timber structure, which 90mm nails were used for the specimen type N-SIP. Specimens were tested under lateral-loads in accordance with KS F 2154. From the test results, the shear stiffness coefficient was calculated as 6.2kN/mm, 5.5kN/mm, 4.8kN/mm, 3.9kN/mm and 6.6kN/mm for E-SIP-150, E-SIP-300, P-SIP-150, P-SIP-300 and N-SIP-150, respectively. The naximum shear strength was obtained as 27.5N/mm, 21.1N/mm, 25.9N/mm, 26.6N/mm and 24.8N/mm for E-SIP-150, E-SIP-300, P-SIP-150, P-SIP-300 and N-SIP-150, respectively. When comparing the shear strength of the composite structure developed in this study with that of the light-frame shear wall, the composite structure showed about 3∼5 times higher strength than the light frame shear wall.