Stress Intensity Factor of Reinforced Concrete Beams in Bending
نویسندگان
چکیده
The stress values at the crack tip in bending reinforced concrete beams are considered. state is analytically determined with an initial and propagating crack. Equations of equilibrium a part beam cut along line compiled. These equations reduced to system two nonlinear algebraic using plane-sections hypothesis. determine zone’s height nominal for length. rest parameters expressed regarding zone or same equation determines external moment starting from which length increases. analytical method determining intensity factor (SIF) growing bent proposed. based on assumption that size concentration by equality local stresses end this zone. value coincidence stress. problem solved three-dimensional formulation FE method, considering field’s peculiarities tip. calculation results coincide solutions.
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ژورنال
عنوان ژورنال: Buildings
سال: 2021
ISSN: ['2075-5309']
DOI: https://doi.org/10.3390/buildings11070287