Parametric Study on Reverse Channel Connection Against Progressive Collapse
The connection between beam column nodes is a critical location for building structures to resist continuous collapse.A three-dimensional finite element model of a reverse channel steel connection specimen was established using the explicit dynamics program ANSYS/LS-DYNA for a relatively new type of reverse channel steel connection.The anti continuous collapse performance of the reverse channel steel connection under the condition of removing the center column was analyzed parametrically,and the influence of steel beam span to height ratio and end plate construction form on the anti continuous collapse performance of the reverse channel steel connection was studied.The results show that the ultimate bearing capacity of the reverse channel connection decreases with the increase of the span-depth ratio,while the contribution of the catenary effect to the total bearing capacity increases;The inverted channel steel connection has better resistance to continuous collapse by adopting the construction form of extending the end plate.
万方数据
维普
