Numerical Analysis of Reinforced Concrete Frames Subjected To Fire Under Loading

摘要：

Research over the last decade has shown that composite floor structures can have a significantly greater fire resistance than is suggested by conventional tests on isolated elements, this is largely due to the interaction between the beams and floor slabs and beams-column connections in the fire compartment and the restraint afforded by the surrounding structure. This research was carried out to investigate the effect of fire on the behavior of reinforced concrete frames especially the connection between beam and column, where a special model for a fire furnace was designed in HBRC in order to investigate the aim of the current research. An experimental program consisted of thirteen statically independent two hinged reinforced concrete frames is designed to study the deformational behavior of RC frames subjected to fire under short term loading in terms of deflection and strain distribution, temperatures distribution along the critical cross sections at different limit states with the following variables: fire durations (1,2 and 3 hours), and fire temperatures (300,600 and 800℃) with concrete strength (250 and 600 kg/cm2). Modes of failure, ultimate capacity, deflection and strain of steel reinforcement and concrete at critical sections were examined experimentally and theoretically. The nonlinear finite element analysis for reinforced concrete structure is largely dependant on the stress-strain relationships, failure criteria used, simulation of steel reinforcement and interaction

关键词： Reinforced concrete Frames fire duration fire temperature compressive strength finite analysis

作者: Gouda M. Ghanem Mohamed M. Ebd-EIRazek Sayed M. Abd El-bakey Ahmed Ali Hassan Esraa Emam Ali

作者单位: Materials Civil Engineering Department,Faculty of Engineering Helwan University,Egypt,Cairo Building Physics and Environment Control,Housing & Building National Research Centre,Egypt,Cairo Materials,Housing & Building National Research Centre,Egypt,Cairo Building Materials and Quality Control Institute,Housing & Building National Research Centre,Egypt,C

会议类型: 国际会议

会议名称: the 2011 International Conference on Key Engineering Materials(ICKEM 2011)(2011关键工程材料国际会议)

会议地点: 三亚

会议语种:英文

页码: 637-640

在线出版日期: 2011-03-25（万方平台首次上网日期，不代表论文的发表时间）