Том 58. бр. 3.
Резюме на бълг. ез.
DOI: 10.71167/uaceg.2025.580309
Анотация
" The beam-column connection is a particularly vulnerable element of frame structures and is often responsible for damage to buildings during seismic events. A good understanding of the forces passing through the frame connections in the beam-beam and column-column directions would allow for their adequate calculation in new buildings and their verification in existing buildings without the need for experimental studies. In the design standards of a number of countries, the shear force is determined by a capacitive method, taking into account only the area of the longitudinal reinforcement of the beam passing through the joint. This method shows us how much shear force the reinforcement of the beam can withstand, but not what the actual magnitude of the forces is as a result of the acting loads. Furthermore, the contribution of the concrete to the total magnitude of the shear force is not taken into account. The proposed mathematical model for calculating the forces entering the joint after leaving the beam takes into account the full dimensions of its cross-section. The properties of the materials and the shape of the cross-section are also taken into account. The determining factor for the magnitude of the forces is the load acting on the beam. This paper summarizes the results of calculations for several types of loads. The calculations are based on Menabrea's theorem for determining hyperstatic unknowns. The results of the proposed method for the beams under consideration show that the magnitude of the shear force differs from that accepted in the literature by 6,06 % to 16,89 %, depending on the stage of crack development. Meanwhile, the comparison with the recommended Eurocode method is in the range of -33,36 % to 32,99 % for the accepted beams."
Дойчева, А., Боева, Б. Определяне на срязващата сила във вътрешен стоманобетонен рамков възел,
УАСГ, 2025, с. 439 - 460.
Дойчева, А., Боева, Б. .
Определяне на срязващата сила във вътрешен стоманобетонен рамков възел.
София: УАСГ, 2025, с. 439 - 460.
Дойчева, А., Боева, Б. (2025)
Определяне на срязващата сила във вътрешен стоманобетонен рамков възел,
София: УАСГ, с. 439 - 460
Дойчева, А., & Боева, Б.
(2025).
Определяне на срязващата сила във вътрешен стоманобетонен рамков възел. Годишник на Университета по архитектура, строителство и геодезия - УАСГ. София: УАСГ, 58 (бр. 3), с. 439 - 460.
