About the authors
| First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address. | Lizunova N.S. – assistant E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kazan State University of Architecture and Engineering The organization address: 420023, Russia, Kazan, Zelenaya st., 1 |
| Title of the article | Computer modeling of the stress-strain state of plug joints reinforced concrete columns under shear |
| Abstract. | The article presents the results of computer modeling of the stress-strain state of socket joints of precast concrete columns under shear forces. To study the stress-strain state interface (SSS) at all stages, including limit state, formed the model of physically nonlinear elements. The study was conducted using a PC «Lira SAPR-2013». Analysis of joints and their analogs, showed that the shear yielding of the joints affected by the following factors, which are directed to the study of computer simulation: a seam mark solution and its thickness; ratio of the thickness of the solution to a thickness of the contact surfaces (keeping the adhesion and cohesion properties), mechanical properties of the solution to be filled well; longitudinal reinforcement, the diameters of the valve; the strength characteristics of the reinforcement. The results of the computer simulations were obtained values of the shear displacement, strain diagrams and data on the distribution of shear and normal stresses in the contact area «solution-concrete», «solution-valves» in the crushing of concrete under the reinforcement bars. Performed numerical studies of design decisions joints allowed to specify the parameters of structural elements involved in the joint, and optimize the program of physical experiment. |
| Keywords. | Shear compliance, plug joint, experimental studies, the compound columns, strain diagrams, fracture mechanism, linear displacement, solution embedment. |
| For citations: | Lizunova N.S. Computer modeling of the stress-strain state of plug joints reinforced concrete columns under shear // Izvestiya KGASU. 2014. №3(29) P.56-61. |
