Title:
Seismic and Damage Analysis of Reinforced Concrete Wall Building Systems using the BTM-Shell Method
Author(s):
Koutromanos
Publication:
Web Session
Volume:
ws_S24_Koutromanos.pdf
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
3/23/2024
Abstract:
We will present our results from recent seismic analysis studies of both new and existing reinforced concrete (RC) wall building systems using the beam-truss model (BTM) methodology as developed in the program FE-Multiphys. The BTM is a method extensively validated, using experimental test data, in peer reviewed research which efficiently captures all the important aspects of response and behavior of RC walls, slabs and other components including all critical damage and failure modes. The first case study presents the seismic analysis of a modern 14-story core wall building in Los Angeles while the second case study the seismic assessment of an existing 8-story tall RC wall building representing construction in the 1960’s in California. Both case studies consider the significant effects of flexure-shear interaction of RC walls as well as the nonlinear behavior of the floor slabs and their coupling with the walls and the columns. Dynamic analysis is conducted at both the design earthquake as well as the MCER seismic intensity levels. How the BTM method overcomes the significant limitations of current system level nonlinear analysis practice is discussed.