Influence of various parameters on the fire performance of concealed shear tap connections between steel columns and a timber beam using full scale tests and finite element modelling
The use of wood as a construction material dates back to the early days of mankind. It has been used successfully for thousands of years as a building construction material. The use of wood however, because is combustible, has been restricted as a construction material by the National Building Code of Canada (NBC) and other building codes around the world. This study is part of PhD project that investigate the behaviour of three different types of connections. Exposed shear tab, Concealed shear tab and Seated connections. In this paper the influence of various parameters on the fire performance of the concealed shear tab connection are presented. A series of fire-resistance tests was conducted to study the influence of various parameters governing the fire performance of hybrid connections between steel columns and a glulam beam. The tests were done by exposing the test specimens to the standard time-temperature curve defined by CAN/ULC-S101. The test assembly consisted of two pin-pin steel columns and a glulam beam loaded using two point loads at midsection. Test results showed that the fire resistance of the connections depends on the load ratio, and the number and size of the bolts used. An empirical correlation was developed to calculate the failure time of concealed connections.
|Keywords||Finite element model, Fire resistance, Full-scale fire tests, Hybrid connections, Timber connections|
|Conference||2016 World Conference on Timber Engineering, WCTE 2016|
Ali, S. (Sabah), & Hadjisophocleous, G. (2016). Influence of various parameters on the fire performance of concealed shear tap connections between steel columns and a timber beam using full scale tests and finite element modelling. In WCTE 2016 - World Conference on Timber Engineering.