Structural Mechanics of Engineering Constructions and BuildingsStructural Mechanics of Engineering Constructions and BuildingsСтроительная механика инженерных конструкций и сооружений1815-52352587-8700Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)2618710.22363/1815-5235-2021-17-1-63-73Analytical and numerical methods of analysis of structuresАналитические и численные методы расчета конструкцийResearch ArticleCommon irregularities and its effects on reinforced concrete building responseРаспространенные дефекты и их влияние на характеристики железобетонного зданияGhimireKrishnaГимиреКришна

student of the School of Engineering, Master of Science in Structural Engineering

студент Инженерной школы, магистр в области строительного проектирования

hchaulagain@gmail.comChaulagainHemchandraЧаулагейнХемчандра

Assistant Professor of the School of Engineering

доцент Инженерной школы

hchaulagain@gmail.comPokhara UniversityУниверситет Покхары02042021171VOL 17, NO1 (2021)ТОМ 17, №1 (2021)637302042021Copyright ©; 2021, Ghimire K., Chaulagain H.Copyright ©; 2021, Гимире К., Чаулагейн Х.2021Ghimire K., Chaulagain H.Гимире К., Чаулагейн Х.http://creativecommons.org/licenses/by/4.0https://journals.rudn.ru/structural-mechanics/article/view/26187

In most of the countries, the irregular building construction is popular for fulfilling both aesthetic and functional requirements. However, the evidence of past earthquakes in Nepal and the globe demonstrated the higher level of seismic vulnerability of the buildings due to irregularities. Considering this fact, the present study highlighted the common irregularities and its effect on reinforced concrete building response. The effect of structural irregularities was studied through numerical analysis. The geometrical, mass and stiffness irregularities were created by removing bays in different floor levels and removing the columns at different sections respectively. In this study, the numerical models were created in finite element program SAP2000. The structural performance was studied using both non-linear static pushover and dynamic time history analysis. The results indicate that the level of irregularities significantly influenced the behavior of structures.

Во многих странах погрешности в проектировании зданий часто сказываются не только на их эстетическом виде, но и на техническом состоянии. Череда землетрясений, произошедших как в Непале, так и во всем мире, продемонстрировала высокий уровень сейсмической уязвимости зданий из-за погрешностей их проектирования и возведения. Принимая во внимание этот факт, в настоящем исследовании освещаются общие дефекты и их влияние на характеристики железобетонных зданий. Влияние конструктивных погрешностей изучено с помощью численного анализа. Геометрические погрешности и погрешности в характеристиках материала конструкций и жесткостей их сечений моделировались путем удаления пролетов в различных уровнях пола и удаления колонн в различных местах соответственно. В процессе численного исследования были созданы конечно-элементные модели в системе SAP2000. Характеристики конструкции изучались с использованием нелинейного статического прогона и динамического расчета изменений во времени. Результаты показали, что количество дефектов существенно влияет на поведение конструкций.

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