Improved engineering method for calculating the strength of the supporting areas of reinforced concrete elementsOlena Krantovska, Mykola Petrov, Liubov Ksonshkevych, Sergii Synii and Pavlo SunakMATEC Web Conf., 230 (2018) 02014DOI: https://doi.org/10.1051/matecconf/201823002014