Truss Model Example - Mestyanek Squat Wall

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Example prepared by: Yuan Lu, UC Berkeley and Marios Panagiotou, UC Berkeley

This example describes the Opensees implementation of a nonlinear truss model for a squat shear critical wall subject to static cyclic loading. The response of Unit 1.0 from Mestyanek (1986) is studied in this example and the experimental and computed response will be compared in the results.

See the video of the simulation here!


Model Description

Results

Figure 2. Experimental and computed force-displacement response for Unit 1.0, along with comparison of experimental damage state and computed strain contours.


References

[1] Mestyanek, J. M. (1986). "The earthquake resistance of reinforced concrete structural walls of limited ductility." ME thesis. University of Canterbury.

[2] Panagiotou, M., Restrepo, J.I., Schoettler, M., and Kim G. (2012). "Nonlinear cyclic truss model for reinforced concrete walls." ACI Structural Journal, 109(2), 205-214.

[3] Lu, Y., and Panagiotou, M. (2013). “Three-Dimensional Nonlinear Cyclic Beam-Truss Model for Reinforced Concrete Non-Planar Walls.” Journal of Structural Engineering, published online.

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