Assessment of Web Panel Zone in Built-up Box Columns Subjected to Bidirectional Cyclic Loads

The behavior of the web panel zone has a direct effect on cyclic performance steel moment connections. While mechanisms failure are known under load, little is about bidirectional loads in bolted Using experimental tests and calibrated numerical models, this research evaluated unidirectional loads. results showed that load can modify stress strain distribution zone. Moreover, increasing width-to-thickness ratio column influences mechanism joint configuration increases plastic incursion column. These data demonstrate effects improve