چکیده مقاله
The structural assessment of historical masonry buildings particularly those featuring vaulted arches presents significant challenges due to their complex geometries and the high computational demands associated with detailed numerical simulations While micro modeling approaches offer high fidelity representations of local failure mechanisms, they are often impractical for large scale heritage structures This study evaluates the effectiveness and accuracy of macro scale modeling as a computationally efficient alternative for simulating the seismic and mechanical behavior of unreinforced masonry arches Two experimental case studies are analyzed: a one third scale adobe vault subjected to vertical displacement and a full scale clay brick barrel vault tested under dynamic loading using a shaking table Numerical simulations were conducted using the ABAQUS finite element platform, incorporating the Concrete Damage Plasticity CDP model to capture the nonlinear behavior of masonry The results demonstrate strong agreement between numerical and experimental data with respect to global failure mechanisms, load displacement responses, and dynamic characteristics such as natural frequencies and acceleration histories at control points The peak load prediction error was less than 0 2%, and displacement deviations remained below 15% Although fine crack patterns were not fully replicated, the overall structural response was captured with high accuracy These findings validate the application of macro modeling as a practical and reliable approach for the seismic evaluation and conservation planning of large scale historical vaulted masonry structures
کلیدواژهها
نویسندگان
Mohammad Hosein Momenian
Ph D Candidate, Dept of Civil Engineering, Semnan University, Semnan, Iran
Mohammad Ali Kafi
Associate Professor, Dept of Civil Engineering, Semnan University, Semnan, Iran
Omid Rezaifar
Professor, Dept of Civil Engineering, Semnan University, Semnan, Iran
شیوه ارجاع
Momenian, Mohammad Hosein and Kafi, Mohammad Ali and Rezaifar, Omid,1404,Validation of Macro model-Based Numerical Simulation for Unreinforced Brick Masonry Arches,14th International Congress on Civil Engineering,Tehran
ارائهشده در
مجموعه مقالات چهاردهمین کنگره بین المللی مهندسی عمران29 مهر 1404 · تهران