Search for: [Abstract = "The paper presents the theory of cracking in reinforced concrete and steel\-concrete composite members \(according to the codes\), view of crack pattern on the surface of the slabs and a comparison of the tests results and the code calculations. It was observed, that some factors influencing on crack widths are not taken in Eurocode 4 \(which is based on Eurocode 2 with taking into account the phenomenon called \"tension stiffening\"\)."]