Papers by Keyword: Forensic Engineering

Abstract: For a correct interpretation of the results of the risk analysis are necessary correct input data. Acquisition of data can be different. For logical and numerical methods the expert risk analysis can we ensure data through questionnaires. This can serve as questionnaires experts. Acquisition of data can also be combined with methods for probabilistic analysis.

Abstract: The paper introduces an alternative method for damage pricing on buildings in consequence of defects, failures and collapses. This alternative method operates with time-independent price of the structure and follows damage on the construction. By using the risk analysis method the price of construction can be reduced depending on the technical conditions of the structure and the construction assessment can be made with compare of structures health.

Abstract: For questions of the accident investigation of bridge，forensic engineering system of bridge is presented to find out the cause of collapse。New framework is proposed for forensic engineering system of bridge，including conception、principle、 independent investigation、member of investigation group、time limit of investigation and legal status of investigation conclusion.

Abstract: Engineering design must be cost-effective over its complete life cycle and this necessitates a statistical approach to product and service reliability. A particular design therefore has a finite probability of failure during its lifetime and this has implications in terms of ensuring that design procedures, management of design, and operation and inspection are appropriate, effective and sufficient. Sophisticated expert system software packages have enabled wide access to rapid development to prototype and production stages. The expert knowledge encapsulated in such systems may be inadvertently used outside its intended application envelope, leading to unexpected and unwelcome failures. This paper highlights the role of failure analysis and fractography in the context of product reliability. It will present case studies illustrating typical structural reliability problems that highlight issues connected with the ‘reliability’ of experts in assessing the reasons for failure.

Abstract: Concrete runways are subject to material deterioration or structural problems, which lead to surface cracks and scaling of a concrete pavement. In this study, seismic techniques including the SASW method, the impact-echo method and the impulse-response method were integrated into a systematic nondestructive approach, which is designed for the assessment of structural integrity of concrete runway pavements. Numerical simulation of the employed seismic methods was performed to verify the validity. For feasibility, the integrated approach was applied to a concrete runway which has surface cracks at pavement segments not subject to airplane loading. The approach verified that the surface cracks were attributed to reduced subgrade stiffness, which may not be detected by conventional pavement tests. The validity of the integrated approach was also proven in lieu of forensic engineering for concrete runway pavements.