ENGINEERING
INVESTIGATION OF
STRUCTURAL FAILURES
Glenn R. Bell, P.E
.


INTRODUCTION 6.2
Purposes of Structural Failure Investigations 6.2
Technical versus Procedural Causes of Failure 6.3
Scope of This Chapter 6.3
PROJECT INITIATION 6.4
Project Objective and Scope 6.4
Conflicts of Interest 6.4
Agreements 6.5
Establishing the Investigative Plan 6.5
ESTABLISHING THE INVESTIGATIVE TEAM 6.6
Qualifications of the Investigator 6.6
Available Guides 6.8
Sources of Failure Information 6.9
Team Organization 6.9
Cooperative Efforts with Other Investigators 6.11
GENERAL INVESTIGATIVE PROCESS 6.11
Analysis versus Synthesis 6.11
Development and Analysis of Failure Hypotheses 6.11
Establishing the Loads on the Structure 6.12
Establishing the Capacity of the Structure 6.12
Advancement of Failure Hypotheses 6.14
DOCUMENT REVIEW 6.15
FIELD INVESTIGATION 6.18
Access to and Control of the Site 6.18
Site Safety 6.18
Samples 6.18
Field Observations and Documentation 6.19
Field Tests 6.22
Eyewitness Accounts 6.23
LABORATORY ANALYSIS 6.23
Materials Testing 6.23
Component Testing 6.23
STRUCTURAL ANALYSIS 6.24
Methods 6.24
Precision and Sensitivity Analysis 6.26

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