Optimal design of reinforced concrete structures taking into account the particular calculation for progressive destruction

• Main Authors: Tampazyan Ashot, Zubareva Svetlana
• Format: Article
• Language: English
• Published: EDP Sciences 2017-01-01
• Series: MATEC Web of Conferences
• Subjects: Optimization, objective function; constraint system; risk analysis; search method; progressive destruction; fire effects; dynamic impact; dynamic coefficient; beamless slab
• Online Access: https://doi.org/10.1051/matecconf/201711700163

The problems of optimization of reinforced concrete structures are considered taking into account their properties and features under fire impacts and dynamic loading. Experimental data on the dynamic strength of concrete and reinforcement under fire impacts and their approximation in analytical form are presented. It is shown that the dynamic strength of materials at temperatures above 3500С leads to their sharp decrease, which adversely affects the resistance of buildings to progressive destruction. To resist the progressive destruction of buildings and structures, they require a high cost of providing them, which in most cases is inefficient. The search method is proposed, which allows taking into account a set of constraints, and the objective function, including the risk of collapse, to find the optimal solution. On the example of a reinforced concrete bezel plate of overlap, its optimum parameters are found.