Optimisation reinforced concrete slab with risk analysis according to the criterion of minimum cost

21st International Scientific Conference on Advanced in Civil Engineering "Construction - The Formation of Living Environment"

土木建筑工程

Filimonova, Ekaterina^1

Moscow State University of Civil Engineering, Yaroslavskoe Shosse 26, Moscow

129337, Russia^1

关键词: Accident conditions;    Engineering structures;    Method of calculation;    Non-linear constraints;    Nonlinear objective functions;    Objective functions;    Random search algorithm;    Structure parameter;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/365/5/052022/pdf
DOI  :  10.1088/1757-899X/365/5/052022

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

The safety strategy based on the principles of forecasting and preventing technology related accidents and structural failures is gaining momentum at the present time. In this context it cant be argued that estimation and accounting for the risk of structural failure in design is becoming more and more relevant. The method of calculation and optimisation of engineering structures can be significantly improved by wider application of risk analysis.Usage of probabilistic apparatus allows to define quantitatively the structure safety level and to design them by minimum cost criteria.To achieve this goal objective function is formed, taking as inputs all the costs and damage from possible accident conditions. Optimal design of reinforced concrete structures is characterised by non-linear objective function and some number of local extremums. Random search algorithm is used to solve similar problems. Suggested improved searching method allows to solve the optimisation choice of structure parameters problem both with non-linear constraints and non-linear objective function.