Abstract
This paper presents modelling of the progressive failure of steel moment frames subjected to localised fire. A finite element approach using the software ABAQUS has been developed to analyse the structure. An explicit-dynamic solution was adopted to solve the non-convergence problems caused by element buckling. A series of validation analyses were carried out to ensure that the results were within an acceptable level of accuracy. The analysis results are shown to match well with the previous experimental data and analysis. This modelling approach allows detailed insights to be obtained into the structural robustness of such frames in fire situations.
Highlights
Progressive collapse is typically triggered by the spread of initial local failure from element to element subsequently leading to the collapse of a whole structure or a large portion of it
This paper presents modelling of the progressive failure of steel moment frames subjected to localised fire
This study presents a modelling approach to simulate the progressive failure of a steel frame building exposed to localised fire
Summary
Progressive collapse is typically triggered by the spread of initial local failure from element to element subsequently leading to the collapse of a whole structure or a large portion of it. The UK Cardington tests[2,3,4] indicated that a composite steel frame had better fire resistance compared to those of single elements in the standard fire test. This shows the importance of investigating the complete structure to understand the behaviour of the building under fire conditions. Fullscale experiments of the global behaviour of the structure in fire conditions are very expensive and extremely time-consuming It seems that conducting a large number of such experiments is not feasible in the study the progressive collapse of buildings in a fire. The model adopted in this study is validated against experimental results and previous analysis
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IOP Conference Series: Earth and Environmental Science
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
