Abstract
Abstract. Wooden structure restorationwork in historical buildings requires substitution and/or reparation of structural elements. The aim of this investigation is to compare the density, wave velocity, dynamic module, and quality factor intest pieces of solid wood, laminated wood and a multimaterial of P. pseudostrobus. The work hypothesis proposes that dynamic modules of laminated wood and multimaterial laminated wood reinforced with stainless steel mesh are, at least, equal to solid wood. Small dimension test pieces made of solid wood, laminated wood, and multimaterial wood elaborated with the species P. pseudostrobus were prepared. Humidity content and apparent density of wood were determined. Ultrasound tests in radial, tangential, and longitudinal direction were doneand wave velocity, dynamic module, and quality factor were determined. Empiric evidence indicates that wave velocity, dynamic module, and quality factors are different with the three kinds of test pieces. Laminated wood and multimaterial wood characteristics are similar to P. pseudostrobus solid wood; so that the two compound material have good expectations to substitute some pieces that work as resistance elements in wooden structures.
Highlights
Wooden structure restoration work in buildings with historical and cultural value requires the reparation and/or, eventually, the substitution of structural elements such as beams, columns,girdersand the components of roof truss, walls, floors and stairways. (Van Roy et al, 2018) In order to respect the wooden historical structures preservation principles of the International Council on Monuments and Sites (ICOMOS, 1999), it is necessary to substitute some pieces of wood which are deteriorated by new elements of the same species and with technological quality equivalent to the wood in service (Cruz et al, 2015)
The dynamic module was calculated with the equation (1)
Laminated wood density decreases 1% and multimaterial density decreases 0.5% comparing both with solid wood density. (Table 1). These results suggest that laminated treatment and multimaterial fabrication do not modify in a significant way the density of specimens made only with solid wood
Summary
Wooden structure restoration work in buildings with historical and cultural value requires the reparation and/or, eventually, the substitution of structural elements such as beams, columns,girdersand the components of roof truss, walls, floors and stairways. (Van Roy et al, 2018) In order to respect the wooden historical structures preservation principles of the International Council on Monuments and Sites (ICOMOS, 1999), it is necessary to substitute some pieces of wood which are deteriorated by new elements of the same species and with technological quality equivalent to the wood in service (Cruz et al, 2015). Wooden structure restoration work in buildings with historical and cultural value requires the reparation and/or, eventually, the substitution of structural elements such as beams, columns,girdersand the components of roof truss, walls, floors and stairways. Some elements made of wood, such as recycled beams used to support flexion charges, have been submitted for replacement or reinforcement with classical techniques which involve the use of common construction materialsuch as concrete or steel Working in historical buildings, Nowak et al (2013) added CFRP to reinforce Pinus Sylvestris beams in order to restore charge capacity in wooden beams. Rescalvo et al (2017) and Rescalvo et al (2018) use different configurations of CFRP to reinforce Pinus Sylvestris old wood, and to analyze the increment in mechanical resistance
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
