@misc{Schwedler2009, type = {Master Thesis}, author = {Schwedler, Michael}, title = {Untersuchungen adaptiver Modellanpassungen f{\"u}r Probleme dynamischer Bauwerks-Bodeninteraktion}, doi = {10.25643/bauhaus-universitaet.1405}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20091022-14896}, school = {Bauhaus-Universit{\"a}t Weimar}, year = {2009}, abstract = {Die Eigenschaften des Baugrunds k{\"o}nnen das dynamische Verhalten eines Bauwerks in erheblichem Maße beeinflussen. Um daraus resultierende Ver{\"a}nderungen der Tragwerksbeanspruchung ermitteln zu k{\"o}nnen, muss der Boden in den Berechnungsmodellen zur Bestimmung der Tragwerksbeanspruchung ber{\"u}cksichtigt werden. Die m{\"o}glichen Modellierungsvarianten unterscheiden sich in ihrer Komplexit{\"a}t erheblich. Im Rahmen dieser Arbeit wird das dynamische Verhalten eines konkreten Bauwerks, der Millikan Library, an einem numerischen Modell untersucht. W{\"a}hrend das Partialmodell Bauwerk w{\"a}hrend der Untersuchungen unver{\"a}ndert bleibt, werden f{\"u}r den Boden verschiedene Modellierungsvarianten verwendet. Allen Bodenmodellen gemein ist, dass sie auf einfachen, gekoppelten Feder-D{\"a}mpferelementen beruhen. Die mit den unterschiedlichen Modellierungsvarianten des Bodens erzielten Ergebnisse werden einander gegen{\"u}ber gestellt und mit dem, im Rahmen anderer Arbeiten experimentell bestimmten, dynamischen Verhalten des untersuchten Bauwerks verglichen.}, subject = {Boden-Bauwerk-Wechselwirkung}, language = {de} } @article{StrukeljSkrinar1997, author = {Strukelj, A. and Skrinar, Matjaz}, title = {The Evaluation of the Dynamical Soil-Bridge Interaction}, doi = {10.25643/bauhaus-universitaet.539}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-5397}, year = {1997}, abstract = {In the design of a structure, the implementation of reliable soil-foundation-structure interaction into the analysis process plays a very important role. The paper presents a determination of parameters of a suitably chosen soil-foundation model and their influence on the structure response. Since the mechanical data for the structure can be determined with satisfactory accuracy, the properties of the soil-foundation model were identified using measured dynamic response of the real structure. A simple model describing soil-foundation structure was incorporated into the classical 3-D finite element analysis of the structure with commercial software. Results obtained from the measured data on the pier were afterwards compared with those obtained with the finite model of the pier-foundation-soil structure. On the basis of this comparison the coefficients describing the properties in the soil-foundation model were adjusted until the calculated dynamic response coincided with the measured ones. In this way, the difference between both results was reduced to 1\%. Full-scale tests measuring eigenmotion of the bridge were performed through all erection stages of the new bridge in Maribor. In this way an effective and experimentally verified 3-D model for a complex dynamic analysis of the bridge under the earthquake loading was obtained. The significant advantage of the obtained model is that it was updated on the basis of the dynamic measurements thus improving the model on the basis of in-situ geomechanical measurements. The model is very accurate in describing the upper structure and economical in describing the soil mass thus representing an optimal solution regarding computational efforts.}, subject = {Boden-Bauwerk-Wechselwirkung}, language = {en} } @article{BapirAbrahamczykWichtmannetal., author = {Bapir, Baban and Abrahamczyk, Lars and Wichtmann, Torsten and Prada-Sarmiento, Luis Felipe}, title = {Soil-structure interaction: A state-of-the-art review of modeling techniques and studies on seismic response of building structures}, series = {Frontiers in Built Environment}, volume = {2023}, journal = {Frontiers in Built Environment}, number = {Volume 9}, editor = {Ozturk, Baki}, publisher = {Frontiers Media}, address = {Lausanne}, doi = {10.3389/fbuil.2023.1120351}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20230206-49190}, pages = {1 -- 17}, abstract = {The present article aims to provide an overview of the consequences of dynamic soil-structure interaction (SSI) on building structures and the available modelling techniques to resolve SSI problems. The role of SSI has been traditionally considered beneficial to the response of structures. However, contemporary studies and evidence from past earthquakes showed detrimental effects of SSI in certain conditions. An overview of the related investigations and findings is presented and discussed in this article. Additionally, the main approaches to evaluate seismic soil-structure interaction problems with the commonly used modelling techniques and computational methods are highlighted. The strength, limitations, and application cases of each model are also discussed and compared. Moreover, the role of SSI in various design codes and global guidelines is summarized. Finally, the advancements and recent findings on the SSI effects on the seismic response of buildings with different structural systems and foundation types are presented. In addition, with the aim of helping new researchers to improve previous findings, the research gaps and future research tendencies in the SSI field are pointed out.}, subject = {Boden-Bauwerk-Wechselwirkung}, language = {en} } @phdthesis{Nasser, author = {Nasser, Mourad}, title = {Quality Assessment of Dynamic Soil-Structure Interaction Models Using Energy Measures}, publisher = {Verlag der Bauhaus-Universit{\"a}t}, address = {Weimar}, isbn = {978-3-86068-494-8}, doi = {10.25643/bauhaus-universitaet.1854}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20130220-18542}, school = {Bauhaus-Universit{\"a}t Weimar}, pages = {132}, abstract = {In this research work, an energy approach is employed for assessing quality in dynamic soil-structure interaction (SSI) models, and energy measures are introduced and investigated as general indicators of structural response. Dynamic SSI models with various abstraction levels are then investigated according to different coupling scenarios for soil and structure models. The hypothesis of increasing model uncertainty with decreasing complexity is investigated and a mathematical framework is provided for the treatment of model uncertainty. This framework is applied to a case study involving alternative models for incorporating dynamic SSI effects. In the evaluation process, energy measures are used within the framework of the \textit{adjustment factor} approach in order to quantitatively assess the uncertainty associated with SSI models. Two primary types of uncertainty are considered, namely the uncertainty in the model framework and the uncertainty in the model input parameters. Investigations on model framework uncertainty show that the more complex three-dimensional FE model has the best quality of the models investigated, whereas the Wolf SSI model produces the lowest model uncertainty of the simpler models. The fixed-base model produces the highest estimated uncertainty and accordingly the worst quality of all models investigated. These results confirm the hypothesis of increasing model uncertainty with decreasing complexity only when the assessment is based on the ratio of structural hysteretic energy to input energy as a response indicator.}, subject = {Boden-Bauwerk-Wechselwirkung}, language = {en} } @inproceedings{LaemmerMeissnerRuben2003, author = {L{\"a}mmer, Lutz and Meißner, Udo F. and Ruben, Jochen}, title = {Modellierung von Baugrund-Tragwerk-Systemen f{\"u}r die parallele numerische Simulation unter Ber{\"u}cksichtigung dynamischer Aspekte}, doi = {10.25643/bauhaus-universitaet.327}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-3276}, year = {2003}, abstract = {Bei der Gr{\"u}ndung von schweren Bauwerken (z.B. Hochh{\"a}usern auf Gr{\"u}ndungsplatten und pf{\"a}hlen) wird der Lastabtrag in den Baugrund durch eine starke Interaktion zwischen Bauwerk und Baugrund bestimmt. Der Baugrund kann ph{\"a}nomenologisch als Mehrphasenkontinuum beschrieben werden, bei dem die Phasen Feststoff, Fl{\"u}ssigkeit und Gas in mechanische Wechselwirkung treten. Die Wechselwirkung zwischen der Deformation des Feststoffes und der Str{\"o}mung des Porenwassers spielt unter der Lasteinwirkung des Bauwerks und unter dynamischer Erregung eine zentrale Rolle. Bei komplexen Gr{\"u}ndungsverh{\"a}ltnissen k{\"o}nnen die Deformations- und Spannungszust{\"a}nde realit{\"a}tsnah nur durch dreidimensionale Modelle erfasst werden. Je nach Baufortschritt stellen sich die Probleme dabei unterschiedlich dar. Der vorliegende Beitrag besch{\"a}ftigt sich mit der f{\"u}r die mit der Simulation mit der Methode der finiten Elemente notwendigen Modellierung und der rechnergest{\"u}tzten Netzgenerierung f{\"u}r die Baugrund-Tragwerk-Strukturen. Bei komplexen dreidimensionalen Gr{\"u}ndungskonstruktionen ist eine solche rechnergest{\"u}tzte Diskretisierung mit finiten Elementen zweckm{\"a}ßig, die das geotechnische System und dessen Randbedingungen und Lasten umfassend beschreiben und verwalten kann. Daf{\"u}r werden geeignete Software-Werkzeuge vorgestellt, mit denen sich dreidimensionale, zeitabh{\"a}ngige Systeme modellieren und diskretisieren lassen. Die Kontaktproblematik zwischen Baugrund und Tragwerk und die Besonderheiten des Mehrphasenkontinuums stellen besondere Anspr{\"u}che an die Diskretisierung. Zudem werden Methoden vorgestellt, die das akkumulierte Gr{\"u}ndungsmodell, das sich {\"u}ber den Bauablauf ergibt, verwalten und die verschiedenen Bauzust{\"a}nde in einem dynamischen Modell bereitstellen.}, subject = {Boden-Bauwerk-Wechselwirkung}, language = {de} } @inproceedings{BoykoKoepplerKirichuk2000, author = {Boyko, Igor P. and K{\"o}ppler, H. and Kirichuk, A.}, title = {INTERACTION OF SPATIAL THIN-WALLED STRUCTURES WITH FLUID-SATURATED SOIL}, doi = {10.25643/bauhaus-universitaet.574}, url = {http://nbn-resolving.de/urn:nbn:de:gbv:wim2-20111215-5748}, year = {2000}, abstract = {Thin-walled spatial structures are broadly used in the modern technician and building. In fuel industry for long-term keeping of oil and gas are used reservoirs of various capacity, which on technological reasons can be shipped under the soil. Shells of reservoirs combine in itself high toughness and low specific consumption of materials. At the same time, being under the soil, they feel steady-state and dynamic loads from ambiance, which particularly in the event, when reservoir is empty, can bring about the loss of stability of its form. On the other hand contact interactions of shell and soil greatly depend on features of ambiance and its saturating of liquid. For building generalized porous springy ambiance models, saturated by the liquid, it is possible to use Bio equations of motion for displacement of hard and fluid phases. Elaboration of mathematical specified interaction models and theirs realization by means of modern computing software allows to study behaviour of spatial thin-walled designs on base of geometric nonlinear theory of shells}, subject = {Raumtragwerk}, language = {en} }