![]() Practicing engineers often adopt complex finite element methods, or design them in the two directions separately, which often results in overly conservative design.Ĭurrently, there exists a gap in the research to develop a design guideline for exposed column base plate connection under combined axial load and bi-axial bending. Although, the columns are designed and checked under combined axial load and bi-axial bending, when it comes to the base plate connection, only the axial load and major axis bending are considered. ![]() Current design codes and guidelines do not address the design of these exposed base plate connections under axial load and bi-axial bending. However, very often these base plates are subjected to bidirectional bending moment from lateral loads such as wind and earthquake. Most of the previous studies and design guidelines are focused on base plate design under axial load and uniaxial bending moment (typically major axis). As a result, the design of a column base connection presents several issues, which is not limited to characterization of force and deformation demands, characterization of deformation capacities of the connection components and failure mechanisms, and development of desirable hierarchies of failure modes (Gomez et al., 2010). In comparison, limited experimental and numerical investigations were devoted to study the behavior of column base connections. However, a significant amount of effort has been dedicated to the steel beam-column connections under seismic loading. After the 1994 Northridge Earthquake, design of steel connections has been significantly revamped across north America. Failure of these base plate connections can result in the collapse of the entire frame as it affects the ductility demand and force distribution in the structure (Grauvilardell et al., 2005). This base connection is one of the most important structural components which acts as a transfer medium for all the forces and moments from the entire building into the foundation. Removal of U.S Steel Tariffs & SafeguardsĪssistant Professor, Department of Civil Engineering, Lakehead UniversityĬolumn base plate connections, typically consisting of a steel member welded to a steel base plate connected to the concrete base via anchor rods and grout, are commonly found in building and non-building structures.AISC Anti-Dumping & Countervailing Duty Trade Case. ![]() Steel Detailing Technician (Certificate).CSSBI Steel Product Certified Directory.CISC Steel Structures Certified Directory.CISC / CSSBI Members & Associates Directory. ![]()
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