RESPONSE TO: C. Higgins's and K. Kasai's Discussion of “The Dynamic Response of Wood-Frame Shear Walls with Viscoelastic Dampers”

1999 ◽  
Vol 15 (4) ◽  
pp. 841-844
Author(s):  
David W. Dinehart ◽  
Harry W. Shenton ◽  
Timothy E. Elliott
1999 ◽  
Vol 15 (4) ◽  
pp. 835-839
Author(s):  
Christopher Higgins ◽  
Kazuhiko Kasai

1999 ◽  
Vol 15 (1) ◽  
pp. 67-86 ◽  
Author(s):  
David W. Dinehart ◽  
Harry W. Shenton ◽  
Timothy E. Elliott

Results are presented of an experimental investigation, the objectives of which were to evaluate and compare the performance of conventional plywood shear walls with walls that include viscoelastic (VE) dampers. Cyclic tests were conducted on conventional walls and walls with VE dampers; five different damper configurations were tested. The walls with the VE dampers showed an increase in the total energy dissipation and an increase in the effective stiffness, relative to the conventional wall, with increases in energy dissipation as high as 59 percent. Tests demonstrated that the sheathing-to-stud and corner dampers can easily be installed within the confines of the wall and can be utilized without impacting the design, construction, or finishing of the shear wall. The results demonstrate that addition of the viscoelastic dampers significantly enhanced the dynamic performance of the walls by increasing the energy dissipation capacity and providing a constant source of energy dissipation.


2021 ◽  
Vol 240 ◽  
pp. 112298
Author(s):  
Paúl Orellana ◽  
Hernán Santa María ◽  
José Luis Almazán ◽  
Xavier Estrella

2011 ◽  
Vol 255-260 ◽  
pp. 350-354
Author(s):  
Liu Yan ◽  
Xiao Jin Zou ◽  
Chen Gang She

The performance of two types of Chinese screw nails in connections between sheathing and wood frame was assessed using ASTM-F1575-03. Specimens were tested in groups of 10, and both parallel-to-grain and perpendicular-to-grain specimens were tested in the case of ASTM-F1676-03. It was found that the type of nail had little effect on the performance of nail joints. Finally a modified model suitable to domestic nails in two directions was established on the basis of Foschi’s exponential model. The model provides useful data on the performance of sheathing-to-lumber connections.


2012 ◽  
Vol 138 (12) ◽  
pp. 1419-1426 ◽  
Author(s):  
Minghao Li ◽  
Frank Lam ◽  
Borjen Yeh ◽  
Tom Skaggs ◽  
Doug Rammer ◽  
...  

2012 ◽  
Vol 517 ◽  
pp. 164-170 ◽  
Author(s):  
Juan Francisco Correal ◽  
Sebastian Varela

Wood frame buildings have shown good performance on past earthquakes mainly because the lateral system of those buildings was able to dissipate energy without significant loss of lateral capacity. Typically, the lateral load resisting system is provided by wood shear walls, which consist of a wood frame sheathed with wood or wood-based composites, such as Plywood or OSB panels. Taking into account the increasing forest demand for wood, there is a global need to find alternative energy-efficient, renewable and eco-friendly construction materials. Giant bamboo like Guadua Angustifolia kunt emerges as an interesting construction material, since it has a fast growing rate (3 to 4 years), high strength to weight ratio and high carbon (CO2) capture capabilities. Results of a past study conducted at the Universidad de los Andes in Bogotá-Colombia reported that Glued Laminated Guadua Bamboo (GLG) has mechanical properties comparable to those of the best structural timbers in Colombia. Potential applications of GLG include not only laminated beams and columns, but also structural panels to be used as a sheathing material for wood frame shear walls. A comprehensive experimental study has been performed on GLG sheathed shear walls in order to find an alternative sheathing material for wood frame buildings as well as to explore their possible application for residential and/or commercial construction in Colombia. A series of tests were conducted on full-size shear wall specimens in order to study the influence of the wall aspect ratio and the edge nail spacing on the shear wall performance. Based on cyclic tests on shear walls, it was found that the stiffness and maximum load carrying capacity of the wall increases as edge nail spacing decreases. In contrast, the displacement ductility capacity decreases, since the rotation of the panels is restricted when the edge nail spacing is reduced. Experimental results also revealed that stiffness, maximum load capacity, and ductility of the GLG sheathed shear walls are not affected by the aspect ratio of the wall. The final stage of the present study included dynamic shake-table tests on full-size one and two-story housing units using GLG sheathed shear walls. Results showed that the units had similar performance characteristics to those of OSB and Plywood sheathed shear walls, and it was concluded that wood-GLG combination could be a viable construction alternative from a structural point of view.


2013 ◽  
Vol 139 (9) ◽  
pp. 1489-1497 ◽  
Author(s):  
S. Pei ◽  
J. W. van de Lindt ◽  
N. Wehbe ◽  
H. Liu

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