An Accurate modeling approach for calculating the vibration characteristics of steel framed structures with semi rigid connections

2015-07-01
Özel, Halil Fırat
Sarıtaş, Afşin
Vibration characteristics of steel framed structures are affected by the presence of semi-rigid connections. In this study, a mixed formulation frame finite element is developed from force method, where the variational form of the element bases on the use of three-fields Hu-Washizu-Barr principle. Consistent mass matrix of the element is obtained such that determination of vibration frequencies of members with varying geometry and material distribution as well as the presence of semi-rigid connections at any section on the element is accurately captured without any need for specification of different displacement shape functions for each individual case. The element response does not necessitate further discretization due to the presence of semi-rigid connections. Benchmark numerical examples for a steel I-beam verifies the accuracy of proposed element with and without semi-rigid connections
Citation Formats
H. F. Özel and A. Sarıtaş, “An Accurate modeling approach for calculating the vibration characteristics of steel framed structures with semi rigid connections,” presented at the 8th International Conference on Behaviour of Steel Structures in Seismis Areas STESSA 2015, Shanghai, China, 2015, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/80847.