Hollow-core polygonal masonry pagodas are vulnerable to seismic bending failure along inter-story or near-inter-story sections, yet simplified methods for identifying governing fracture interfaces and evaluating cumulative cracking are limited. This study develops a simplified variable-cross-section cantilever model considering geometric tapering, hollow-core, and height-dependent seismic amplification. Unidirectional seismic response and the El Centro record are assumed. The governing interface is identified using maximum tensile stress, and cumulative cracking using fracture energy and a safety factor. Application to a seven-story octagonal hollow-core pagoda locates the governing interface at the bottom of the second story, consistent with previous numerical and experimental observations. Seismic acceleration, superstructure mass, and hollow-core geometry primarily control cumulative cracking, while increasing masonry elastic modulus provides limited mitigation under strong earthquakes. The method suits preliminary screening of vulnerable interfaces in hollow-core polygonal masonry pagodas with few openings, but not rectangular-section pagodas or refined analyses involving fatigue and nonlinear cyclic damage.
The construction of concrete shell roofs in Mexico has declined owing to seismic vulnerability and slenderness effects. Traditional form-finding guarantees static equilibrium under self-weight alone and remains inadequate under seismic demand, where stiffness degradation and stress reversal govern the response. Three f...
J. Vega, Orlando Susarrey Huerta, Héctor Aureliano Sánchez Sánchez· Research on Engineering Stru...· 0 citations
Short reinforced concrete (RC) columns in multistory structures are frequently subjected to
combined axial load and biaxial bending arising from wind, seismic actions, and construction
eccentricities. Accurate prediction of their nonlinear response remains challenging due to complex
stress interactions and limitatio...
Eyaramuonan Charles Arogo· International Journal of Eng...· 0 citations
Masonry infill walls are widely used in reinforced concrete (RC) buildings, but their seismic behavior is often studied using fixed-base models without fully considering soil–structure interaction. This study investigates the seismic response of a ten-story, one-bay RC frame with 0%, 30%, and 50% infill openings, with...
B. Shilpa, G. Narayana, B. Narendra· Research on Engineering Stru...· 0 citations
The longitudinal seismic response of a high-pier long-span stiff-skeleton arch bridge is spatially asymmetric because unequal pier heights, the fixed–movable bearing arrangement, and arch–pier interaction create nonuniform force transfer paths, even when the installed fluid viscous dampers (FVDs) obey a symmetric veloc...
Roadway cross-sectional geometry dominates surrounding rock deformation and failure, yet most existing numerical studies adopt oversimplified ideal cavities rather than practical coal mine roadway profiles, lacking systematic comparisons of real engineering section shapes. This work aims to reveal how practical cavity...
This paper investigates the seismic response and stress-strain state of a two-span reinforced concrete highway bridge subjected to real earthquake records using advanced numerical modeling. A three-dimensional model of a 48 m long bridge was developed considering structural characteristics, support conditions, and soil...
D. Bekmirzaev, M. Berdibaev, Р. Аъзамов· E3S Web of Conferences· 0 citations
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