جستجوی مقالات مرتبط با کلیدواژه « مقاومت آتش سوزی » در نشریات گروه « عمران »

The potential danger of fire is one of the important phenomena that may cause Irreparable damages the structure. Therefore, add fire protection is essential for columns as the main components of a structure that require sufficient fire resistance for increase in safety. In this study, the effect of expandable paint coating on the temperature distribution at the cross section and time of fire resistance of concrete-filled steel columns that are suitable for high seismic areas and tall buildings have been studied. For this purpose, in first step the finite element model of a steel column filled with concrete under ISO 834 standard fire was prepared and analyzed according to available laboratory data. After validation of the results from the finite element model in comparison with the laboratory data, various specimens of columns that protected with Intumescent Fire Coating and with circular, rectangular, square and oval sections, designed according to the Iranian Steel Code and has been modeled and analyzed by Abacus finite element software. The results show that the expandable paint coating increases the fire resistance of concrete-filled steel columns with circular, square, rectangular and oval cross sections by 2.2, 3.3, 4.14 and 3.36 equality has been afforded to those without protective cover.