Date

5-1-2019

Document Type

Thesis

Degree

Master of Science

Department

Civil Engineering

First Adviser

Paolo Bocchini

Abstract

The author presents a detailed procedure to model a pre-stressed concrete beam in ATENA Engineering and ABAQUS, considering a series of load cases. One of the main purposes of the thesis is to investigate the time effort required and the additional knowledge gained by modeling techniques of increasing accuracy, and based on different software packages. The two software packages differ in several substantial ways: mechanical models available, visualization, time costs, primary fields of application, and models for concrete cracking. This effort is part of a larger initiative with contributors from the USA and Europe to study the value of advanced modeling within the life-cycle cost of a major structure. Moreover, the thesis focuses on numerical problems arising from independent meshing of the multiple parts of the beam. Sensitivity analyses are performed to evaluate the effect of misalignment of the various local meshes on the global failure modes of the beam.

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