Abstract
In this study, the effect of span length on progressive collapse resistance capacity of Welded Unreinforced Flange-Bolted web (WUF-B) connections was investigated by using the alternate path method as per Unified Facilities Criteria (UFC). Towards this aim, several nonlinear analyses were performed for three generic moment resisting frames with WUF-B connections considering various span lengths. In order to reduce the simulation time, a macro-element, or component-based model is introduced and verified against the NIST test results. The analysis results revealed that for a certain frame length, by decreasing the span length (increasing the number of spans) as an indirect approach, it is possible to enhance the alternate path capacity of WUF-B connections and decrease the risk of progressive collapse occurrence. For example, for the cases studied here, it was shown that by decreasing the span length to half the failure overload factor of the frame increases more than twice.
| Original language | English |
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| Title of host publication | Insights and Innovations in Structural Engineering, Mechanics and Computation: Proceedings of the Sixth International Conference on Structural Engineering, Mechanics and Computation (SEMC 2016), 5-7 September 2016, Cape Town, South Africa |
| Publisher | CRC Press/Balkema |
| Pages | 1259-1264 |
| Number of pages | 6 |
| ISBN (Print) | 9781138029279 |
| Publication status | Published - 2016 |
| Event | International Conference on Structural Engineering_Mechanics and Computation - Duration: 5 Sept 2016 → … |
Conference
| Conference | International Conference on Structural Engineering_Mechanics and Computation |
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| Period | 5/09/16 → … |
Keywords
- anchorage (structural engineering)
- risk assessment
- steel, structural
- structural design
- welding