Search results for: Earthquake%20engineering

• Bulletin of Earthquake Engineering

  Journals

  ISSN: 1570-761X , eISSN: 1573-1456

• SOIL DYNAMICS AND EARTHQUAKE ENGINEERING

  Journals

  ISSN: 0267-7261 , eISSN: 1879-341X

• Earthquake

  Journals

  ISSN: 1000-3274

• World Information on Earthquake Engineering

  Journals

  ISSN: 1007-6069

• Earthquake Science

  Journals

  ISSN: 1674-4519 , eISSN: 1867-8777

• International Journal of Geotechnical Earthquake Engineering

  Journals

  ISSN: 1947-8488 , eISSN: 1947-8496

• Earthquake-Induced Structural Pounding

  Publication

  • R. Jankowski
  • S. Mahmoud

  - GeoPlanet: Earth and Planetary Sciences - Year 2015

  Earthquake-induced structural pounding between insufficiently separated build-ings, or bridge segments, has been repeatedly observed during ground motions. The reports after earthquakes indicate that it may lead to some local damage in the case of moderate seismic events or may result in considerable destruction or even collapse of colliding structures during severe ground motions. Pounding in build-ings is usually caused by the...

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• Earthquakes and Structures

  Journals

  ISSN: 2092-7614 , eISSN: 2092-7622

• Bulletin of the New Zealand Society for Earthquake Engineering

  Journals

  ISSN: 1174-9857 , eISSN: 2324-1543

• Bulletin of the International Institute of Seismology and Earthquake Engineering

  Journals

  ISSN: 0074-655X

• EARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS

  Journals

  ISSN: 0098-8847 , eISSN: 1096-9845

• PLANNING AND ANALYSIS OF EARTHQUAKE DISASTER RELIEF WORK IN ETHIOPIA

  Publication

  • p. h. Gökçekuş
  • y. getachew

  - Year 2019

  This paper addresses dynamic planning and analysis of earthquake disaster relief work by analysis the disaster throughout the technical and procedural method. And combine this analysis as continues assessment for better input to investigating planning disaster for discontinuous economic growth. This implemented, considering the vulnerability and hazard analysis as a procedural analysis disaster to estimating acceptance risk leveling...

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• Earthquake-induced pounding between asymmetric steel buildings

  Publication

  • B. Sołtysik
  • R. Jankowski

  - Year 2014

  Earthquake-induced pounding between buildings has been the subject of numerous numerical and experimental studies in the resent years. The phe-nomenon may cause severe damage to structural elements as well as may also lead to the total collapse of colliding structures. A major reason leading to pounding between adjacent, insufficiently separated buildings results from the differences in their dynamic properties. The aim of this...

• Pounding force response spectrum under earthquake excitation

  Publication

  • R. Jankowski

  - ENGINEERING STRUCTURES - Year 2006

  W artykule przedstawiono możliwość wykorzystania spektrum siły zderzenia jako zaproponowanego przez autora narzędzia pomocnego przy projektowaniu budynków narażonych na zderzenia podczas trzęsień ziemi. Przedstawione wykresy spektrów pokazały, iż właściwy dobór parametrów budowli, takich jak szerokość przerwy pomiędzy budynkami, okres drgań własnych konstrukcji, liczba tłumienia, masa, współczynnik ciągliwości, czy też przesunięcie...

• Earthquake-Induced Pounding Between Asymmetric Steel Buildings

  Publication

  • B. Sołtysik
  • R. Jankowski

  - Year 2016

  Earthquake-induced pounding between buildings has been the subject of numerous numerical and experimental studies in the resent years. The phenomenon may cause severe damage to structural elements as well as may also lead to the total collapse of colliding structures. A major reason leading to pounding between adjacent, insufficiently separated buildings results from the differences in their dynamic properties. The aim of this...

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• Nonlinear modelling of eathquake induced pounding.

  Publication

  • R. Jankowski

  - Year 2003

  Zaprezentowano nieliniowy model lepkosprężysty siły zderzenia w czasie kontaktu między konstrukcjami podczas trzęsień ziemi. Efektywność modelu sprawdzono przez porównanie wyników analizy numerycznej z wynikami eksperymentalnymi. Wyniki badań pokazują, iż rozważany model najdokładniej symuluje siłę zderzenia w czasie.

• Modified linear viscoelastic model of earthquake-induced structural pounding

  Publication

  • S. Mahmoud
  • R. Jankowski

  - Iranian Journal of Science and Technology Transaction A-Science - Year 2011

  In recent times, earthquake-induced structural pounding has been intensively studied through the use of different impact force models. The numerical results obtained from the previous studies indicate that the linear viscoelastic model is relatively simple and accurate in modeling pounding-involved behavior of structures during earthquakes. The only shortcoming of the model is a negative value of the pounding force occurring just...

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• Simulations of impact force spectrum for earthquake-induced structural pounding.

  Publication

  • R. Jankowski

  - Year 2004

  Celem artykułu jest analiza możliwości zastosowanie tzw. spektrum siły zderzenia przy projektowaniu sąsiadujących ze sobą konstrukcji budowlanych na terenach sejsmicznych, w przypadku zbyt małej przerwy dylatacyjnej między nimi. W artykule przedstawiono wyniki symulacji numerycznych przeprowadzonych dla różnych wartości parametrów dynamicznych konstrukcji.

• Non-linear viscoelastic modelling of earthquake-induced structural pounding

  Publication

  • R. Jankowski

  - Year 2005

  Celem artykułu jest analiza nieliniowego lepko-sprężystego modelu siły zderzenia, który ma zastosowanie do symulacji zderzeń pomiędzy konstrukcjami budowlanymi podczas trzęsień ziemi. Efektywność modelu sprawdzono poprzez porównanie wyników symulacji numerycznych z wynikami eksperymentalnymi. Wyniki pracy pokazują, iż w stosunku do innych modeli zderzeń, nieliniowy model lepko-sprężysty umożliwia najdokładniejszą symulację siły...

• Experimental study on earthquake-induced pounding between steel structures

  Publication

  • B. Sołtysik
  • R. Jankowski

  - ce/papers - Year 2023

  Pounding between adjacent structures has been repeatedly observed during major earthquakes. The phenomenon may cause some local damage at the points of interactions, it may also lead to substantial destruction, permanent deformations or total collapse of colliding structures. The effects of earthquake-induced structural pounding have been studied for more than three decades now. However, most of the studies concerned masonry as...

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• Earthquake-induced pounding between superstructure segments of isolated bridge

  Publication

  • R. Jankowski

  - Year 2015

  The use of seismic isolation in bridges is considered as one of the most promising advanced technologies to enhance the structural safety during earthquakes. However, the method results in larger displacements of superstructure segments increasing the probability of pounding between them. Reports after severe ground motions show that the earthquake-induced structural pounding may lead to significant damage in isolated bridges....

• EARTHQUAKE SPECTRA

  Journals

  ISSN: 8755-2930 , eISSN: 1944-8201

• Procedia Engineering

  Journals

  ISSN: 1877-7058

• Problems of collisions between adjacent steel structures under earthquake excitation

  Publication

  • B. Sołtysik
  • R. Jankowski

  - Year 2014

  Nowadays, the high level of urbanization forces the designers to design closely-separated structures and to take into account many factors influencing the response of these structures, which may collide due to insufficient separation distance during moderate to strong ground motions. Recent observations as well as numerical and experimental investigations have confirmed that the interactions between structures may lead to significant...

• Prefabricated structures under earthquake excitation: damage and failure of connection joints

  Publication

  • P. Piotrowski
  • R. Jankowski

  - Year 2008

  Celem artykułu jest analiza zachowania się złączy pomiędzy elementami belkowymi a słupami w konstrukcjach prefabrykowanych poddanych obciążeniom dynamicznym powstającym podczas trzęsień ziemi. Wyniki przedstawione w pracy, uzyskane na podstawie badań numerycznych przeprowadzonych dla wybranego modelu konstrukcji, pokazują, iż złącza są najsłabszym elementem wymagającym zwrócenia szczególnej uwagi przy projektowaniu konstrukcji...

• Impact force spectrum for damage assessment of earthquake-induced structural pounding

  Publication

  • R. Jankowski

  - Year 2005

  Celem artykułu jest zastosowanie spektrum siły zderzenia do szacowania zniszczeń powstałych na skutek zderzeń pomiędzy konstrukcjami budowlanymi, do których dochodzi podczas trzęsień ziemi. Wyniki analizy wskazują, iż spektrum takie może być przydatnym narzędziem przy projektowaniu konstrukcji podatnych na zderzenia. Przykłady spektrów odpowiedzi pokazują, iż zapewnienie odpowiedniej przerwy dylatacyjnej lub zgranie parametrów...

• Stochastic modelling of spatiotemporal earthquake fields for large cylindrical shell tanks

  Publication

  • R. Jankowski

  - Year 2005

  Celem artykułu jest analiza metody warunkowego modelowania stochastycznego pola losowego trzęsienia ziemi dla dużych cylindrycznych zbiorników powłokowych wykorzystując przestrzenno-czasową funkcję korelacji. Metoda została zastosowana do generacji historii czasowych przyspieszeń w różnych punktach pola. Następnie wygenerowane historie czasowe zostały wykorzystane do analizy dynamicznej odpowiedzi zbiornika powłokowego. Wyniki...

• Earthquake-Induced Pounding of Medium-to-High-Rise Base-Isolated Buildings

  Publication

  • H. Naderpour
  • P. Danaeifard
  • D. Burkacki
  • R. Jankowski

  - Applied Sciences-Basel - Year 2019

  During earthquakes, out-of-phase vibrations in adjacent buildings with limited distance may cause pounding between them. In recent years, the use of seismic isolation has expanded considerably as an effective approach to reduce seismic damage. However, the isolated building experiences large displacements during earthquakes, and there is a possibility of collisions with adjacent structures. The research on earthquake-induced pounding...

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• PROBLEMS OF COLLISIONS BETWEEN ADJACENT STEEL STRUCTURES UNDER EARTHQUAKE EXCITATION

  Publication

  • B. Sołtysik
  • R. Jankowski

  - Civil and Environmental Engineering Reports - Year 2016

  Nowadays, the high level of urbanization forces the engineers to design closely-separated structures and to take into account many factors influencing their response, including collisions between them due to insufficient separation distance during moderate to strong ground motions. Recent observations as well as experimental and numerical investigations have confirmed that interactions...

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• Building damage due to structural pounding during earthquakes

  Publication

  • B. Sołtysik
  • R. Jankowski

  - Journal of Physics : Conference Series - Year 2015

  Earthquake-induced pounding between adjacent buildings has been identified as one of the reasons for substantial damage or even total collapse of colliding structures. A major reason leading to interactions in buildings results from the differences in their dynamic parameters and also from insufficient distance between the structures. Although the research on structural pounding has been much advanced, the studies have mainly been...

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• JOURNAL OF EARTHQUAKE ENGINEERING

  Journals

  ISSN: 1363-2469 , eISSN: 1559-808X

• EXPERIMENTAL AND NUMERICAL STUDY ON COLLISIONS BETWEEN STEEL STRUCTURES UNDER EARTHQUAKE EXCITATION

  Publication

  • B. Sołtysik
  • R. Jankowski

  - Year 2014

  In the time of high urbanization, the need to build closely-spaced structures forces the designers to take into account earthquake-induced collisions between adjacent buildings and their effects on the response of structures. Past and recent investigations confirmed that interactions between adjacent buildings during earthquakes may cause serious damages to the structural elements and may even lead to total collapse of the structure....

• Pounding-involved response of isolated and non-isolated buildings under earthquake excitation

  Publication

  • S. Mahmoud
  • R. Jankowski

  - Earthquakes and Structures - Year 2010

  Celem artykułu jest dokładna analiza zachowania się kolidujących ze sobą dwóch budynków z wibroizolacją i bez wibroizolacji poddanych obciążeniom dynamicznym podczas trzęsień ziemi. W analizie rozważno przypadki kiedy oba budynki mają wibroizolację, kiedy tylko jeden budynek ma wibroizolację oraz kiedy żaden z budynków nie ma wibroizolacji. Wyniki badań pokazują, iż budynki z wibroizolacją są bardziej podatne na zderzenia podczas...

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• Experimental study on steel columns subjected to impact load under earthquake conditions

  Publication

  • W. Migda
  • R. Jankowski

  - Year 2011

  Earthquakes affecting urbanized regions cause exceptional loads to load bearing structural elements such as columns. Such a boost in the load conditions can lead to severe damages which, in a worst case scenario, can lead to a total collapse of a building. This boost is caused by the horizontal ground movement generating a rise in the internal forces due to considerable large displacement between the top and bottom support of columns....

• Comparison of numerical models of impact force for simulation of earthquake-induced structural pounding

  Publication

  • R. Jankowski

  - Year 2008

  W artykule przedstawiono porównanie trzech modeli numerycznych służących do symulacji siły zderzenia w czasie kontaktu pomiędzy konstrukcjami budowlanymi podczas trzęsień ziemi. Efektywność każdego z modeli zbadano porównując wyniki analiz numerycznych z wynikami badań eksperymentalnych. Wyniki pracy pokazują, iż nieliniowy model lepkosprężysty najdokładniej symuluje przebieg czasowy siły zderzenia w czasie kontaktu.

• Numerical simulations of transverse pounding-involved response of buildings due to earthquake excitation.

  Publication

  • R. Jankowski

  - Year 2004

  Celem artykułu jest analiza (w kierunku poprzecznym) zachowania się uderzających o siebie budynków podczas trzęsienia ziemi. W analizie tej obie konstrukcje modelowane są przy użyciu dyskretnego, sprężysto-plastycznego modelu o skupionych masach, zaś do symulacji zderzeń zastosowano nieliniowy model lepko-sprężysty. Wyniki analizy pokazują, iż zderzanie prowadzi do znacznego wzrostu odpowiedzi w kierunku poprzecznym dla konstrukcji...

• Influence of separation gap on the structural response of colliding structures under earthquake excitation

  Publication

  • B. Sołtysik
  • R. Jankowski

  - Year 2015

  The high level of urbanization in the XXIst century forces the designers to design closely-separated structures and to take into account many factors influencing their response during seismic excitation, which are the most unpredictable loads which can affect civil engineering structures. Interactions between insufficiently adjacent buildings, known as the earthquake-induced structural pounding, may cause serious damage to the structures,...

• Earthquake–induced pounding on response of adjacent structures in series: experimental and numerical study

  Publication

  • S. El-Khoriby
  • A. Seleemah
  • H. Elwardany
  • R. Jankowski

  - Year 2015

  Pounding between structures in series during earthquakes may cause serious damage in the structur-al elements. The aim of this paper is to show the results of an experimental and numerical study that is focused on pounding between more than two structures which may be called "structures in series". In this study, the shaking table experiments, as well as the numerical analyses, were performed using three tower models including...

• Numerical study on pounding between two adjacent buildings under earthquake excitation

  Publication

  • H. Naderpour
  • R. Barros
  • S. M. Khatami
  • R. Jankowski

  - SHOCK AND VIBRATION - Year 2016

  Seismic excitation, which results in large horizontal relative displacements, may cause collisions between two adjacent structures due to insufficient separation distance between them. Such collisions, known as earthquake-induced structural pounding, may induce severe damages. In this paper, the case of pounding between two adjacent buildings is studied by the application of single degree-of-freedom structural models. Impact is...

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• Elastic and inelastic multi-storey buildings under earthquake excitation with the effect of pounding

  Publication

  • S. Mahmoud
  • R. Jankowski

  - Journal of Applied Sciences - Year 2009

  W artykule przeprowadzono analizę różnic w liniowym i nieliniowym zachowaniu się budynków wielokondygnacyjnych podczas trzęsień ziemi z uwzględnieniem efektu zderzeń pomiędzy nimi. Analizę numeryczną przeprowadzono dla różnych wartości ekstremalnych przyspieszeń gruntu. Wyniki pokazują, iż zaimplementowanie nieliniowego modelu zachowania się budowli jest bardzo istotne w celu uzyskania dokładnej odpowiedzi konstrukcji.

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• Nonlinear numerical simulation of earthquake-induced pounding between timber frame buildings

  Publication

  • W. Migda
  • M. Szczepański
  • N. Lasowicz
  • A. Jakubczyk-Gałczyńska
  • R. Jankowski

  - AIP Conference Proceedings - Year 2020

  Earthquakes may induce serious dynamic loads acting on buildings, which can lead to damage or even destruction of the whole structure. In densely populated areas, it is quite common that buildings are located very close one to another which can result in pounding between them during ground motions. Due to the environmental awareness, multi-story timber frame buildings are gaining popularity and therefore there is a need to investigate...

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• Highly Dissipative Materials for Damage Protection against Earthquake-Induced Structural Pounding

  Publication

  • A. M. Stręk
  • N. Lasowicz
  • A. Kwiecień
  • B. Zając
  • R. Jankowski

  - Materials - Year 2021

  It is a common situation that seismic excitations may lead to collisions between adjacent civil engineering structures. This phenomenon, called earthquake-induced structural pounding, may result in serious damage or even the total collapse of the colliding structures. Filling the gap between two buildings erected close to one another by using visco-elastic materials can be considered to be one of the most effective methods to avoid...

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• Effective Formula for Impact Damping Ratio for Simulation of Earthquake-induced Structural Pounding

  Publication

  • S. Khatami
  • H. Naderpour
  • R. Barros
  • A. Jakubczyk-Gałczyńska
  • R. Jankowski

  - Geosciences - Year 2019

  Structural pounding during earthquakes may cause substantial damage to colliding structures. The phenomenon is numerically studied using different models of collisions. The aim of the present paper is to propose an effective formula for the impact damping ratio, as a parameter of the impact force model used to study different problems of structural pounding under seismic excitations. Its accuracy has been verified by four various...

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• Earthquake Engineering and Engineering Vibration

  Journals

  ISSN: 1671-3664 , eISSN: 1993-503X

• OCEAN ENGINEERING

  Journals

  ISSN: 0029-8018

• Shaking table experimental study on structural pounding during earthquakes

  Publication

  • R. Jankowski

  - Year 2008

  Artykuł przedstawia wyniki badań eksperymentalnych przeprowadzonych na stole wstrząsowym dotyczące zachowania się kolidujących ze sobą modeli konstrukcji podczas trzęsień ziemi. Wyniki te pokazują, iż zderzenia mogą prowadzić do znacznego wzrostu odpowiedzi konstrukcji, ale mogą mieć również pozytywny wpływ i częściowo wytłumić drgania. Ponadto, wyniki badań wskazują na istotny wpływ rodzaju materiału, z którego wykonane są elementy...

• Experimental Study on Pounding between Structures during Damaging Earthquakes

  Publication

  • R. Jankowski
  • A. Seleemah
  • S. El-Khoriby
  • H. Elwardany

  - Key Engineering Materials - Year 2015

  Mutual pounding between structures during earthquakes may cause serious structural damage. The aim of this paper is to show the results of a shaking table experimental study focused on pounding between structures in series under several earthquake excitations. The experiments were performed using three tower models with different configurations and different gap distances between them. In the first stage of the study, one rigid...

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• Inelastic damage-involved response of colliding buildings during earthquakes

  Publication

  • S. Mahmoud
  • R. Jankowski

  - Key Engineering Materials - Year 2010

  W artykule poddano analizie nieliniowe zachowanie się kolidujących ze sobą budynków powodujące ich uszkodzenie podczas trzęsień ziemi. Analiza dotyczy zderzeń pomiędzy dwoma sąsiednimi budynkami czterokondygnacyjnymi. Badania pokazują, iż zastosowanie nieliniowego modelu numerycznego zachowania się obu budowli podczas trzęsień ziemi ma duże znaczenia dla dokładności wyników.

• Simulation of the response of base-isolated buildings under earthquake excitations considering soil flexibility

  Publication

  • S. Mahmoud
  • P. Austrell
  • R. Jankowski

  - Earthquake Engineering and Engineering Vibration - Year 2012

  The accurate analysis of the seismic response of isolated structures requires the incorporation of the flexibility of supporting soil. However, it is often customary to idealize the soil as rigid during the analysis of such structures. In the present paper, seismic response time history analyses of base-isolated buildings modelled as single degree-of-freedom (SDOF) and multi degree-of-freedom (MDOF) systems with linear and nonlinear...

• Non-linear strain rate analysis of earthquake-induced pounding between steel buildings

  Publication

  • B. Sołtysik
  • R. Jankowski

  - International Journal of Earth Sciences and Engineering - Year 2013

  Past and recent earthquakes have shown that ground motions may cause severe structural damage to civil engineering structures. Earthquake-induced pounding between adjacent buildings has been identified as one of the reasons which intensifies damages. The aim of this paper is to show the results of the detailed nonlinear FEM analysis of earthquake-induced pounding between two steel buildings. The elastic – perfectly plastic material...