Subproject D3

Model-Based Risk Analysis for Heterogeneous Existing Structures


Overview

Subproject D3 vitally aims to assess potential damages on structures along entire tunnel alignments due to settlements induced by mechanized tunnelling. Essential is to develop and apply a sound multi-level concept to idealize and compute structures subjected to settlements as well as to identify and strictly include relevant uncertainties in damage prognoses and risk assessments derived thereof. Efficient idealisation is achieved primarily by pattern recognition techniques able to detect external structural characteristics reliably.

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Detection rates exemplified on two façades (left), comparison of computed damages employing detected and exact opening ratios (right)


Modular process of risk assessment for buildings on-site (left); Sensitivity of results due to choice of combination for assessment (right).


Results of a risk assessment; Uncertain risk-profile (left); Visualisation of worst and best case structural damages (right)