Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Steel and Composite Structures Volume 18, Number 3, March 2015 , pages 641-657 DOI: https://doi.org/10.12989/scs.2015.18.3.641 |
|
|
|
Effect of local web buckling on the cyclic behavior of reduced web beam sections (RWBS) |
||
Vahid Akrami and Saeed Erfani
|
||
| Abstract | ||
| Application of reduced web beam section (RWBS) as a sacrificial fuse element has become a popular research field in recent years. Weakening of beam web in these connections may cause local web buckling around the opening area which can affect cyclic behavior of connection including: maximum load carrying capacity, strength degradation rate, dissipated energy, rotation capacity, etc. In this research, effect of local web buckling on the cyclic behavior of RWBS connections is investigated using finite element modeling (FEM). For this purpose, a T-shaped moment connection which has been tested under cyclic loading by another author is used as the reference model. Fracture initiation in models is simulated using Cyclic Void Growth Model (CVGM) which is based on micro-void growth and coalescence. Included in the results are: effect of opening corner radii, opening dimensions, beam web thickness and opening reinforcement. Based on the results, local web buckling around the opening area plays a significant role on the cyclic behavior of connection and hence any parameter affecting the local web buckling will affect entire connection behavior. | ||
| Key Words | ||
| moment resisting frames; reduced web beam section; cyclic loading; local web buckling | ||
| Address | ||
| Civil Engineering Department, Amirkabir University of Technology, Tehran, Iran. | ||