by Applied Element Method | Feb 8, 2018 | Journals
Significant research effort has been devoted in recent years to the evaluation of the capacity of steel frame structures to resist progressive collapse after sudden column loss. Due to the complex load-structure interaction and material behaviour, it can be very difficult to evaluate the ultimate capacity of structural components using current analytical methods. Therefore considerable research effort has been directed to experimental testing and sophisticated numerical simulations. Although sudden column loss is a dynamic process, most experimental studies on fullscale or scaled down specimens were performed under quasi-static loads. This paper presents the results of a study devoted to the evaluation of steel frame response following the loss of a column. Advanced numerical models are calibrated using experimental test results and dynamic increase factors are studied. Several full-scale structures are investigated for a sudden column loss scenario.
by Applied Element Method | Jul 25, 2017 | Journals
When subjected to blast loading, fragments ejected by concrete or masonry structures present a number of potential hazards. Airborne fragments pose a high risk of injury and secondary damage, with the resulting debris field causing major obstructions. The capability...
by Applied Element Method | Apr 8, 2017 | Conferences
A new methodology to design against disproportionate collapse is proposed for critical building that must be operational after a terrorist attack. The disproportionate collapse analysis uses the alternate path method where the structure must be designed to support the...
by Applied Element Method | Apr 7, 2017 | Conferences
Alternative Load Path Analysis (ALPA) is becoming the most common technique for performance based design of structures to resist disproportionate collapse. This has coincided with an increased ability of high fidelity numerical analysis tools validated by experimental...
by Applied Element Method | Apr 6, 2017 | Conferences
A three-dimensional nonlinear dynamic analysis is performed for a single well observation platform. The structure consists of a single level service deck supported by three driven piles and a bracing frame. Extreme Loading® for Structures (ELS) software was used. The...
