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Актуальность работы обусловлена широким применением большепролетных оболочечных конструкций в современном строительстве и необходимостью оптимизации их геометрических параметров. Исследование выполнено с использованием программного комплекса «ЛИРА-САПР» на основе метода конечных элементов (МКЭ). Рассмотрено влияние трех ключевых геометрических параметров: величины пролета, стрелы подъема и количества лепестков. Установлены закономерности изменения изгибающих моментов и усилий в оболочке. Выявлено, что увеличение пролета приводит к росту сжимающих усилий до 70%, увеличение стрелы подъема снижает сжимающие напряжения Nx, но увеличивает Ny, а рост количества лепестков существенно повышает значения растягивающих напряжений в зонах их сопряжения. Полученные результаты позволяют рекомендовать наиболее рациональные конструктивные схемы для проектирования большепролетных покрытий.