Dirk Proske – författare

This monograph provides a comparative study between failure probabilities and collapse frequencies in structural bridge engineering. The book includes available data and case studies and thus presents patterns to identify potential weaknesses and challenges in bridge maintenance.

This volume presents the proceedings of the 18th International Probabilistic Workshop (IPW), which was held in Guimarães, Portugal in May 2021. Probabilistic methods are currently of crucial importance for research and developments in the field of engineering, which face challenges presented by new materials and technologies and rapidly changing societal needs and values. Contemporary needs related to, for example, performance-based design, service-life design, life-cycle analysis, product optimization, assessment of existing structures and structural robustness give rise to new developments as well as accurate and practically applicable probabilistic and statistical engineering methods to support these developments. These proceedings are a valuable resource for anyone interested in contemporary developments in the field of probabilistic engineering applications.

This volume presents the proceedings of the 18th International Probabilistic Workshop (IPW), which was held in Guimarães, Portugal in May 2021. Probabilistic methods are currently of crucial importance for research and developments in the field of engineering, which face challenges presented by new materials and technologies and rapidly changing societal needs and values. Contemporary needs related to, for example, performance-based design, service-life design, life-cycle analysis, product optimization, assessment of existing structures and structural robustness give rise to new developments as well as accurate and practically applicable probabilistic and statistical engineering methods to support these developments. These proceedings are a valuable resource for anyone interested in contemporary developments in the field of probabilistic engineering applications.

The mathematical verification of the safety of structures can be done by determining the probability of failure or by using safety elements.

The mathematical verification of the safety of structures can be done by determining the probability of failure or by using safety elements. Observed damages and collapses are usually assessed within the framework of expert reports, which seems reasonable due to the large number of unique structures in the construction industry. However, there should also be an examination of observed safety across all structures. Therefore, in this book the collapse frequencies are determined for different types of structures, such as bridges, dams, tunnels, retaining structures and buildings. The collapse frequency, like the failure probability, belongs to stochasticity. Therefore, the observed mean collapse frequencies and the calculated mean failure probabilities are compared. This comparison shows that the collapse frequencies are usually lower than the calculated failure probabilities. In addition, core damage frequencies and probabilities are given to extend the comparison to another technical product.

This volume presents the proceedings of the 20th International Probabilistic Workshop (IPW), which was held in Guimarães, Portugal on May 8-10, 2024. Probabilistic methods are currently of crucial importance for research and developments in the field of engineering, which face challenges presented by new materials and technologies and rapidly changing societal needs and values. Contemporary needs related to, for example, performance-based design, service-life design, life-cycle analysis, product optimization, assessment of existing structures and structural robustness give rise to new developments as well as accurate and practically applicable probabilistic and statistical engineering methods to support these developments. These proceedings are a valuable resource for anyone interested in contemporary developments in the field of probabilistic engineering applications.

This volume presents the proceedings of the 20th International Probabilistic Workshop (IPW), which was held in Guimarães, Portugal on May 8-10, 2024. Probabilistic methods are currently of crucial importance for research and developments in the field of engineering, which face challenges presented by new materials and technologies and rapidly changing societal needs and values. Contemporary needs related to, for example, performance-based design, service-life design, life-cycle analysis, product optimization, assessment of existing structures and structural robustness give rise to new developments as well as accurate and practically applicable probabilistic and statistical engineering methods to support these developments. These proceedings are a valuable resource for anyone interested in contemporary developments in the field of probabilistic engineering applications.

This book presents the proceedings of the 14th International Probabilistic Workshop that was held in Ghent, Belgium in December 2016. Probabilistic methods are currently of crucial importance for research and developments in the field of engineering, which face challenges presented by new materials and technologies and rapidly changing societal needs and values. Contemporary needs related to, for example, performance-based design, service-life design, life-cycle analysis, product optimization, assessment of existing structures and structural robustness give rise to new developments as well as accurate and practically applicable probabilistic and statistical engineering methods to support these developments. These proceedings are a valuable resource for anyone interested in contemporary developments in the field of probabilistic engineering applications.

This monograph provides a comparative study between failure probabilities and collapse frequencies in structural bridge engineering. The book includes available data and case studies and thus presents patterns to identify potential weaknesses and challenges in bridge maintenance.

Historical stone arch bridges are still a major part of the infrastructure in many countries. Although this type of bridge has proven to be an efficient construction type, it often poses the problem of insufficient numerical models of the load bearing behavior. Therefore the book introduces methods to adapt life loads and introduces different types of numerical models of the load resistance respectively. The book continues with the introduction of specific damages and strengthening techniques. The book particularly focuses on the probabilistic safety assessment of historical arch bridges, for which often only limited material and structural data is available.

Since the German edition of this book, the topic of risk has experienced even greater attention, not only in the world of science but also in other fields, such as economics and politics. Therefore, many new publications have evolved. To keep with the idea of an encyclopedia for the topic of risk, this book has been completely reworked. Not only are many updated examples included in chapter “Risks and disasters” but also new chapters have been introduced, such as the chapter “Indetermination and risk”. This new chapter was developed since the question “Is it possible for risks to be completely eliminated, and if not why?” has become a major point of c- cern. Therefore, especially in this chapter, the focus of the book has - tended from a simple mathematical or engineering point of view to include much broader concepts. Here, not only aspects of system theory have to be considered, but also some general philosophical questions start to inf- ence the considerations of the topic of risk.The main goal of this edition, however, is not only the extension and revision of the book, but also the translation into the English language to allow more readers access to the ideas of the book. The author deeply hopes that the success the book made in the German edition continues and that readers experience a major gain from reading the book.

Since the German edition of this book, the topic of risk has experienced even greater attention, not only in the world of science but also in other fields, such as economics and politics. Therefore, many new publications have evolved. To keep with the idea of an encyclopedia for the topic of risk, this book has been completely reworked. Not only are many updated examples included in chapter “Risks and disasters” but also new chapters have been introduced, such as the chapter “Indetermination and risk”. This new chapter was developed since the question “Is it possible for risks to be completely eliminated, and if not why?” has become a major point of c- cern. Therefore, especially in this chapter, the focus of the book has - tended from a simple mathematical or engineering point of view to include much broader concepts. Here, not only aspects of system theory have to be considered, but also some general philosophical questions start to inf- ence the considerations of the topic of risk.The main goal of this edition, however, is not only the extension and revision of the book, but also the translation into the English language to allow more readers access to the ideas of the book. The author deeply hopes that the success the book made in the German edition continues and that readers experience a major gain from reading the book.

Historical stone arch bridges are still a major part of the infrastructure in many countries. Although this type of bridge has proven to be an efficient construction type, it often poses the problem of insufficient numerical models of the load bearing behavior. Therefore the book introduces methods to adapt life loads and introduces different types of numerical models of the load resistance respectively. The book continues with the introduction of specific damages and strengthening techniques. The book particularly focuses on the probabilistic safety assessment of historical arch bridges, for which often only limited material and structural data is available.

Die Schweiz gilt nicht umsonst als ein innovatives Zentrum des weltweiten Brückenbaus. Verschiedene Schweizer Brückenbauer, wie Christan Menn oder Robert Maillart sind weit über die Grenzen der Schweiz bekannt. Dieser kleine Brückenführer Schweiz stellt knapp 20 interessante Brückenkonstruktionen in der Schweiz vor. Dabei handelt es sich nicht ausschließlich um sehr berühmte Bauwerke, aber alle vorgestellten Brückenbauwerke sind auf ihre Art einzigartig und interessant. Der Brückenführer gibt damit einen schönen Überblick über Vielfalt der Brückenkonstruktionen in der Schweiz.

Dieses Lehrbuch ist ein Einstieg in die Baudynamik, welcher sowohl schnell anwendbares Wissen beinhaltet als auch einen breiten Überblick gibt. Jedes Thema baut dabei auf einem vorangegangenen Thema auf, bei thematischen Sprüngen wird auf das Kapitel verwiesen, in dem sich die Vorüberlegungen finden. Zu jedem Thema gibt es ein oder mehrere Beispiele. Wo immer möglich, werden die Zusammenhänge in Skizzen und Grafiken gezeigt. So lässt sich z.B. die Überführung aus dem Zeitbereich in den Frequenzbereich sehr schön bildlich darstellen.Es werden auch Hintergründe zu mathematischen Verfahren gegeben, die eigentlich Grundlage sein sollten, wie z.B. die Partialbruchzerlegung, Ableitungen etc.

Der rechnerische Nachweis der Sicherheit von Bauwerken kann über die Bestimmung der Versagenswahrscheinlichkeit oder unter Verwendung von Sicherheitselementen erfolgen. Beobachtete Schäden und Einstürze werden meistens im Rahmen von Gutachten bewertet, was auf Grund der großen Anzahl Unikate im Bauwesen sinnvoll erscheint. Allerding sollte es auch eine Prüfung der beobachteten Sicherheit über alle Bauwerke geben.Deshalb werden in diesem Buch die Einsturzhäufigkeiten für verschiedene Bauwerkstypen, wie Brücken, Dämme, Tunnel, Stützbauwerke und Hochbauten, ermittelt. Die Einsturzhäufigkeit gehört wie die Versagenswahrscheinlichkeit zur Stochastik. Daher werden die beobachteten mittleren Einsturzhäufigkeiten und die berechneten mittleren Versagenswahrscheinlichkeiten verglichen. Bei diesem Vergleich zeigt sich, dass die Einsturzhäufigkeiten in der Regel niedriger sind als die berechneten Versagenswahrscheinlichkeiten. Zusätzlich werden Kernschadenshäufigkeiten und -wahrscheinlichkeiten angegeben, um den Vergleich auf ein anderes technisches Erzeugnis auszuweiten.

Die Risikolehre bewertet basierend auf empirischen Daten die potenziell negativen Konsequenzen von Entwicklungen und Handlungen. Sie stellt einen wichtigen Bestandteil der Entscheidungstheorie dar. Neben der Quantifizierung der negativen Konsequenzen gibt die Risikolehre auch die Unsicherheit der Bewertung an. Das Buch beginnt deshalb mit der Diskussion der Begriffe Unbestimmtheit, Komplexität, Katastrophe, Sicherheit und Risiko. Im zweiten Kapitel werden Risiken in natürliche, technische, gesundheitliche und soziale Risiken eingeteilt und zahlreiche Beispiele vorgestellt. Im dritten Kapitel werden verschiedene Risikoparameter eingeführt. Dabei wird der Entwicklung von einfachen Risikoparametern zu komplexeren Parametern gefolgt. Im vierten Kapitel wird die subjektive Risikobewertung behandelt. Im fünften Kapitel werden Lebensqualitätsparameter als höchste Form der Risikoparameter erläutert. Dieser Parameter ermöglicht den eleganten Vergleich der Effizienz von Sicherheitsmaßnahmen. Abschließend werden kurz juristische Grundlagen der Risikobewertung umrissen und Anwendungsbeispiele der Lebensqualitätsparameter diskutiert. Das Buch umfasst eine große Zahl von Bildern und Tabellen, die die Zusammenhänge verdeutlichen sollen. Das Buch besitzt daher den Charakter eines Kataloges.