| dc.description.abstract | Column base plate (CBP) connections are critical components in the overall design of a steel
structure. CBP connections are responsible for transferring the forces exerted on base columns
through a base plate and grout pad into the concrete foundation utilizing anchor rods. Exposedtype column bases are widely used in low-rise building construction all over the world, and
considerable research efforts have been made to identify the parameters that affect their strength
and serviceability. Current design codes and guidelines do not address the design of these
exposed base plate connections 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.
Practicing engineers often adopt complex finite element method or design them in two directions
separately, which often results in overly conservative design. A more direct approach to
designing CBP connections subjected to combined axial and lateral loading conditions would
help ensure column base connections perform as intended under extreme loading. The
inadequate design of a CBP connection will cause the failure of the connection before the
column can reach its peak design values. This configuration is known as a "Strong Column /
Weak Connection". This failure is initiated by the inelastic deformation of one or more of the
following components: anchor rods, concrete, grout, weld, or base plate. The design of all these
components will have a combined effect on the CBP connection's stiffness, strength, and
deformation capacity. [...] | en_US |
