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A platform for research: civil engineering, architecture and urbanism
Reversed cyclic testing of high-capacity light wood frame shear walls with two and three rows of nails
Abstract As the building height limit for light wood-frame construction has been increased from four to six stories in 2015 National Building Code of Canada, stronger shear wall systems have been facing higher demands, especially for mid-rise wood-frame buildings located in high seismic zones. In collaboration with FPInnovations, a new high-capacity shear wall system with two or three rows of nails has been developed and tested since 2020. This paper presents the latest test results of shear wall specimens with two and three rows of nails conducted in 2022. A total of 7 specimens (with two standard shear wall specimens as a reference) were tested under reversed cyclic loading. Test results show that the lateral load resistance of a shear wall is proportional to the number of rows of nails with the same sheathing thickness, nail diameter and nail spacing. The initial stiffness and ultimate displacement of the high-capacity shear wall are greater than that of the comparable standard shear wall. Seismic equivalency to standard shear walls in accordance with ASTM D7989 was also evaluated. Although shear walls with two and three rows of nails have twice and three times of lateral load capacities of a standard shear wall, lower design values are obtained in order to meet the ductility criteria in ASTM D7989.
Highlights Shear walls with two and three rows of nails were tested under reversed cyclic load. Lateral load resistance is proportional to number of row of nails. New construction details are effective in preventing separation between studs and plates. Seismic equivalency of high-capacity walls was evaluated according to ASTM D7989.
Reversed cyclic testing of high-capacity light wood frame shear walls with two and three rows of nails
Abstract As the building height limit for light wood-frame construction has been increased from four to six stories in 2015 National Building Code of Canada, stronger shear wall systems have been facing higher demands, especially for mid-rise wood-frame buildings located in high seismic zones. In collaboration with FPInnovations, a new high-capacity shear wall system with two or three rows of nails has been developed and tested since 2020. This paper presents the latest test results of shear wall specimens with two and three rows of nails conducted in 2022. A total of 7 specimens (with two standard shear wall specimens as a reference) were tested under reversed cyclic loading. Test results show that the lateral load resistance of a shear wall is proportional to the number of rows of nails with the same sheathing thickness, nail diameter and nail spacing. The initial stiffness and ultimate displacement of the high-capacity shear wall are greater than that of the comparable standard shear wall. Seismic equivalency to standard shear walls in accordance with ASTM D7989 was also evaluated. Although shear walls with two and three rows of nails have twice and three times of lateral load capacities of a standard shear wall, lower design values are obtained in order to meet the ductility criteria in ASTM D7989.
Highlights Shear walls with two and three rows of nails were tested under reversed cyclic load. Lateral load resistance is proportional to number of row of nails. New construction details are effective in preventing separation between studs and plates. Seismic equivalency of high-capacity walls was evaluated according to ASTM D7989.
Reversed cyclic testing of high-capacity light wood frame shear walls with two and three rows of nails
Qiang, Ruite (author) / Zhou, Lina (author) / Ni, Chun (author) / Huang, Dongsheng (author)
Engineering Structures ; 304
2024-01-27
Article (Journal)
Electronic Resource
English
Fully Reversed Cyclic Loading of Shear Walls Fastened with Engineered Nails
| Online Contents | 2009
Fully Reversed Cyclic Loading of Shear Walls Fastened with Engineered Nails
| British Library Online Contents | 2009