Preview

Author(s):	Podrou ek, Jan; Strauss, Alfred; Bergmeister, Konrad
Title:	Robustness-based performance assessment of a prestressed concrete bridge
Abstract:	Life-cycle civil engineering addresses, among other things, the growing number of deteriorating bridges and the associated economic challenges. As a consequence, government bodies, infrastructure and bridge owners as well as industry request objective and rational performance indicators for classification and intervention planning in structural engineering. This paper focuses on a methodology for analysing the damage-based robustness margins of bridge systems under traffic loading. In particular, a series of emergent deterioration-based damage scenarios are compared with the actual or virgin state in terms of loadbearing capacity and serviceability. Non-linear finite element analysis based on a detailed 3D model has a high potential for capturing the available bridge capacity for different degradation phenomena and levels, serving as an input for further reliability-based performance indicators. Notwithstanding, costs associated with fully probabilistic assessment measures are still prohibitive despite technological advances and new methods of reducing the sample size in Monte Carlo computations. In addition, considering the large uncertainties and imprecision involved, it is imperative that probabilistic schemes are preferred over deterministic assessments. The objective of this article is to present strategies for robustness-based performance assessment using non-linear modelling and to discuss relevant reliability-based quantities and performance indicators in relation to structural damage using the example of specific degradation events in an existing prestressed box girder bridge. Furthermore, some strategies are developed on the basis of the new approach for general complex engineering structures.
Source:	Structural Concrete 15 (2014), No. 2
Page/s:	248-257
Language of Publication:	English

I would like to buy the article

You can download this article for 25 € as a PDF file (0.76 MB).
The PDF file can be read, printed and saved.
Duplication and forwarding to third parties is not allowed.

Please enter your email address now to start the order process.
The link for the download will be sent to the email address stated after the
order process has been completed.

Your email address

I am an online subscriber

As an online subscriber of the journal "Structural Concrete" you can access this article via Wiley Online Library.

I would like to order "Structural Concrete"

This article has been published in the journal "Structural Concrete". If you would like to learn more about the journal, you can order a free sample copy or find out more information on our website.

Prices include VAT and postage. Prices for 2017/2018.
€ Prices apply to Germany only. Subject to alterations, errors excepted.