The Effect of Sheathing Material on Racking Performance of Plywood Shear Wall/Utjecaj materijala za oblaganje na svojstva posmicnog zida od furnirske ploce

• Published in: Drvna industrija Vol. 73; no. 1; p. 25
• Main Authors: Demirkir, Cenk, Demir, Aydin, Ozturk, Hasan, Aydin, Ismail
• Format: Journal Article
• Language: English
• Published: Sveuciliste U Zagrebu 01.03.2022
• ISSN: 0012-6772
• DOI: 10.5552/drvind.2022.2039

Wooden buildings are intensely preferred especially in earthquake regions due to their many advantages such as lightness, durability, environmental friendliness, insulation and aesthetics. Shear walls provide the lateral resistance needed for light-frame wood structures to withstand earthquake loads. When sheathed with wooden structural panels such as plywood, shear walls can be strong, stiff, and ductile. This study focuses on the effects of production factors (wood species, thickness of panels) of plywood and fibre direction of sheathing material on the racking performance of the shear wall. The displacement at ultimate load decreased with increasing the thickness of plywood panels. It was also concluded that the black pine plywood panels were the best sheathing materials for the shear walls among wood species in terms of ductility. Scots pine plywood panels are the best sheathing materials for the shear walls among wood species in terms of load carrying capacity. Moreover, it was found that the wall formed perpendicular to fibre direction of sheathing materials could carry more load than the wall formed parallel to fibre direction. KEYWORDS: shear wall; structural plywood; racking performance, fibre direction U potresnim su podrucjima osobito zastupljene drvene gradevine zbog njihovih brojnih prednosti kao sto su lakoca, trajnost, ekoloska prihvatljivost, izolacija i estetika. Posmicni zidovi osiguravaju bocnu otpornost kako bi lagane drvene konstrukcije izdrzale potresna opterecenja. Kada su oblozeni drvenim strukturnim plocama kao sto je furnirska ploca, posmicni zidovi mogu biti jaki, kruti i duktilni. Ovo je istrazivanje fokusirano na ucinke proizvodnih cimbenika furnirske ploce (vrstu drva, debljinu ploce) te na smjer vlakanaca materijala za oblaganje na svojstva posmicnog zida. Pokazalo se da se s povecanjem debljine furnirske ploce smanjuje pomak pri krajnjem opterecenju. Takoder je zakljuceno da su sa stajalista duktilnosti furnirske ploce od drva crnog bora bolji izbor za oblaganje posmicnih zidova nego furnirske ploce od ostalih istrazivanih vrsta drva. Sa stajalista nosivosti, za oblaganje posmicnih zidova najboljima su se pokazale furnirske ploce od drva bijelog bora. Osim toga, utvrdeno je da zid for-miran okomito na smjer vlakanaca materijala za oblaganje moze nositi vece opterecenje nego zid formiran paralelno sa smjerom vlakanaca materijala za oblaganje. KLJUCNE RIJECI: posmicni zid; strukturna furnirska ploca; svojstva nosaca; smjer vlakanaca