کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4965743 1448463 2017 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Reformulation and extension of the thrust network analysis
ترجمه فارسی عنوان
اصلاح و گسترش تجزیه و تحلیل شبکه محوری
کلمات کلیدی
تجزیه و تحلیل شبکه محرک واحدهای مصالح ساختمانی، چند ضلعی کانن
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
چکیده انگلیسی
We address the Thrust Network Analysis (TNA), i.e. the methodology for modeling masonry vaults as a discrete network of forces in equilibrium with gravitational loads, first contributed by O'Dwyer and fully developed by Block and coworkers. Reducing the bias by the quoted authors in favor of a graphical interpretation of the method, we reformulate the original version of the TNA by discarding the dual grid and focusing only on the primal grid, thus significantly enhancing the computational performances. The proposed reformulation of the TNA is also extended by including horizontal forces in the analysis as well as holes or free edges in the vault. Furthermore, the coefficient matrices entering the solution scheme are obtained by assembling the separate contribution of each branch, thus avoiding the ad hoc node numbering and branch orientation required by alternative implementations. Numerical examples, some of which referred to vaults having a particularly complex geometry, show the effectiveness and robustness of the proposed approach in assessing the safety conditions of existing masonry vaults or in designing new ones.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Structures - Volume 182, 1 April 2017, Pages 104-118
نویسندگان
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