This example demonstrates how to perform a dynamic analysis in OpenSees using a 2-story, 1-bay steel moment resisting frame. The structure is subjected to the Canoga Park record from the 1994 Northridge earthquake. The nonlinear behavior is represented using the concentrated plasticity concept with rotational springs. The rotational behavior of the plastic regions follows a bilinear hysteretic response based on the Modified Ibarra Krawinkler Deterioration Model (Ibarra et al. 2005, Lignos and Krawinkler 2009, 2010)....

Thermal expansion of a beam

Restrained Steel beam subjected to uniform temperature on half of the member.

A 6m long beam has a uniform applied load of 10 kN/m. With the loading sustained, the beam is heated to a target temperature of 1180 ° C.

A 6 m x 3.5 m single bay frame with a 2 kN/m distributed load is subjected to a non-linear fire curve.

A multi-bay reinforced concrete frame is investigated.

A two-bay frame that measures 2.4 m x 1.18 m with a 60 N/m distributed load and column point loads is subjected to a fire in one of the bays. The heated bay is heated linearly to a target temperature of 550 ° C.

A three-dimensional reinforced concrete rigid frame, is subjected to bi-directional earthquake ground motion.