Жорсткість залізобетонних конструкцій на ділянках з похилими тріщинами

Abstract

Диссертационная работа посвящена разработке способа расчета жесткости железобетонных конструкций на участках с наклонными трещинами, основанного на традиционных предпосылках теории железобетона, механики твердого деформируемого тела, который позволяет существенно откорректировать параметры жесткости.

The thesis is devoted to developing the method of calculating the rigidity of reinforced concrete constructions in areas with inclined cracks based on traditional assumptions of the theory of reinforced concrete, mechanics of solid deformable body, which can significantly edit the rigidity of concrete constructions. Experimental studies and new data parameters: deflections (displacements), the width of the crack opening at the level of the longitudinal axis of the armature and stretched along the crack profile, changing the distance between the cracks and crack length per degree increase in load, working strain reinforcement and concrete along the axis of the working reinforcement between cracks that enable verification of the proposed settlement apparatus and basic premises and assumptions. Numerical and comparative analysis of the changes in a wide range spans “cut” with various schemes of reinforcement, concrete class , shape and size of the cross section, transverse strength values prestressing and changing the distance from the axis of the reinforcement and stretched verge of items that showed sufficient accuracy of results, obtained by the method developed and used as the basis of prerequisites and assumptions.