6 documents found, page 1 of 1
Shake-table experimental testing and performance of topped and untopped cross-l...
Barbosa, Andre R.; Rodrigues, Leonardo Filipe Guilherme; Sinha, Arijit; Higgins, Christopher; Zimmerman, Reid B.; Breneman, Scott; Pei, ShilingThis paper presents the behavior of floor diaphragms of a shake-table experiment of a full-scale two-story mass-timber building structure. The structure consists of glued-laminated timber beams and columns, while floors and walls were designed and built making use of cross-laminated timber panels. Two different floor systems were designed, where the roof consists of a topped CLT-concrete composite system, while...
Experimentally validated numerical models to assess tsunami hydrodynamic force ...
Reis, Cláudia; Clain, Stéphane; Figueiredo, Jorge; Barbosa, Andre R.; Baptista, Maria Ana Carvalho Viana; Lopes, MárioRecently, the North American and Japanese authorities began combining the tsunami forces with other loads in their structural design guidelines. Nonetheless, due to the infrequent nature of tsunamis, the provisions may benefit from complementary insights on the qualitative and quantitative characterization of the extreme phenomena and their interaction with coastal structures. The goal of this paper is to explo...
Numerical modeling of CLT diaphragms tested on a shake-table experiment
Barbosa, Andre R.; Rodrigues, Leonardo; Sinha, Arijit; Higgins, Christopher; Zimmerman, Reid B.; Breneman, Scott; Pei, Shiling; Van De Lindt, JohnCurrent standards and existing literature provide very limited information regarding the design of cross-laminated timber (CLT) floor diaphragms. In addition, limited procedures exist to develop analytical models to estimate the deformation response of CLT floor diaphragms. This paper presents a modelling approach that captures the response of CLT timber diaphragms, with a special focus on CLT spline panel-to-p...
Fragility analysis of a mass-timber frame structure with ring-doweled moment-re...
Rodrigues, Leonardo; Neves, Luís Armando Canhoto; Barbosa, Andre R.; Branco, Jorge M.© WCTE 2018 Committee. The nonlinear behaviour of connections between structural elements is critical to the performance of mass-timber structures under seismic loads. However, limited work has been developed in nonlinear modelling and fragility assessment of mass-timber structures. To improve the accuracy of this approach, in particular when considering structures with ring-doweled moment-resisting connections...
Seismic assessment of a heavy-timber frame structure with ring-doweled moment-r...
Rodrigues, Leonardo; Branco, Jorge M.; Neves, Luís A. C.; Barbosa, Andre R.The performance of heavy-timber structures in earthquakes depends strongly on the inelastic behavior of the mechanical connections. Nevertheless, the nonlinear behavior of timber structures is only considered in the design phase indirectly through the use of an R-factor or a q-factor, which reduces the seismic elastic response spectrum. To improve the estimation of this, the seismic performance of a three-story...
Performance of Medium-to-High Rise Reinforced Concrete Frame Buildings with Mas...
Barbosa, Andre R.; Fahnestock, Larry A.; Fick, Damon R.; Gautam, Dipendra; Soti, Rajendra; Wood, Richard; Moaveni, Babak; Stavridis, AndreasFollowing the 25 April 2015 M<jats:sub>w</jats:sub> 7.8 Gorkha, Nepal, earthquake and subsequent aftershocks, field surveys were conducted on medium-to-high rise reinforced concrete (RC) frame buildings with masonry infill located in the Kathmandu Valley. Rapid visual assessment, ambient vibration testing, and ground-based lidar (GBL) showed that these buildings suffered damage ranging from light to severe, whe...