Galagurya E. Stress-strained state of steel-concrete pillars under the different load distribution

Object - steel-concrete and steel pillars of the square-wave section; the purpose - a development of the methods of the calculation steel-concrete, different image loaded, pillars of the square-wave section with provision for particularities of misshapen concrete and cartridge clips; methods - analytical, experimental, crossbar-iteration; Novelty - is designed methods of the calculation by different image loaded (on one butt end, within length and others) steel-concrete pillars of the square-wave section on externally compression, taking into account: functioning the concrete in three-dimensional stress state; variable acerbity steel-concrete pillars and his curvatures before values characterizing limiting condition; the function, linking longitudal loads and sagging; nonlinear misshapen concrete; the contact interaction between concrete kernel and steel cartridge clip; they are organized experimental studies and are received given: about work hollow and filled by concrete of the pillars at axial andexternally compression: is shown mutual influence of the cartridge clip and kernel on tense-deformed condition steel-concrete pillars; the designed algorithm and program of the calculation steel-concrete pillars on computer; the results - a concrete kernel enlarges the carryinging ability steel-concrete pillars in contrast with hollow: at axial compression before 14% in short pillars and before 15% in long pillars; under externally compression before 31% in short pillars and before 22% in long pillars; the sphere of the use - a designing, reconstruction reinforcement.