{"type": "FeatureCollection", "features": [{"id": "10.1016/j.soildyn.2018.12.017", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:16:55Z", "type": "Journal Article", "created": "2019-01-09", "title": "Modeling of high damping rubber bearings under bidirectional shear loading", "description": "Abstract   The behavior of high damping rubber bearings is highly complex. The models that are currently available are generally limited to unidirectional motion and, in most cases, difficult to extend to general bidirectional loading. One of the major limitations is their inability to characterize the behavior of the bearings at different levels of shear deformation. In the present work, a set of bidirectional models are presented, obtained by combining relatively simple bi-dimensional formulations. The models are calibrated over a set of unidirectional test data and are shown to accurately describe the response of the bearings at low, intermediate and high strain levels using a single set of parameters. Validation is carried out using bidirectional displacement-controlled tests available in the literature and numerical simulations are performed of a base-isolated building subjected to free vibration and bidirectional earthquake excitation.", "keywords": ["ta212", "high damping rubber bearings (HDRB)", "mathematical modeling", "02 engineering and technology", "Seismic Isolation", "01 natural sciences", "0201 civil engineering", "0104 chemical sciences"]}, "links": [{"href": "https://doi.org/10.1016/j.soildyn.2018.12.017"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Dynamics%20and%20Earthquake%20Engineering", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.soildyn.2018.12.017", "name": "item", "description": "10.1016/j.soildyn.2018.12.017", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soildyn.2018.12.017"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2019-03-01T00:00:00Z"}}, {"id": "10.1016/j.soildyn.2019.105873", "type": "Feature", "geometry": null, "properties": {"updated": "2026-05-23T16:16:55Z", "type": "Journal Article", "created": "2019-09-30", "title": "Dynamic response of buried pipelines in randomly structured soil", "description": "Abstract   Buried pipelines in soil undergoing ground vibrations respond by simple kinematic interaction and essentially follow the motion of the surrounding ground. More specifically, the strains that develop in the soil are imparted to the outer surface of the pipeline, which is the celebrated Newmark assumption dating from the 1960's that appears in design codes for pipelines. Of course, this assumption is invalid if the pipeline has bends and other geometric discontinuities. Furthermore, there remains the basic question of modeling the surrounding soil, which is a complex, two-phase medium with an inhomogeneous and anisotropic composition. In this work, we examine the dynamic response of a continuous pipeline by employing the waveguide model from classical elastodynamics. This implies that the pipeline is a continuously supported, beam-type structural element with distributed mass undergoing both axial and flexural vibrations. In here, we retain the influence of the axial vibrations on the flexural vibrations and work with a coupled system of two partial differential equations. The end boundaries of the pipeline are assumed to be fixed at a large distance from its center. We first examine the eigenvalue problem and then focus on the transient vibrations of the pipeline to support motion. In order to account for the complex composition of the ground, the soil impedance is converted into a random variable. Assuming uniform, Gaussian and log-normal distributions, we use Monte Carlo simulations to generate sample values for the soil impedance and compute the statistics (mean, variance and skewness) for the eigenvalue problem. Once the statistics of the eigenproperties of the buried pipeline example are recovered, the validity of the assumption that the soil is a deterministic medium is discussed.", "keywords": ["ta212", "Buried pipelines", "Random soil", "Dynamic loads", "0211 other engineering and technologies", "02 engineering and technology", "Elastic waveguides", "Soil impedances", "0201 civil engineering"]}, "links": [{"href": "https://doi.org/10.1016/j.soildyn.2019.105873"}, {"rel": "related", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/Soil%20Dynamics%20and%20Earthquake%20Engineering", "name": "related record", "description": "related record", "type": "application/json"}, {"rel": "self", "type": "application/geo+json", "title": "10.1016/j.soildyn.2019.105873", "name": "item", "description": "10.1016/j.soildyn.2019.105873", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items/10.1016/j.soildyn.2019.105873"}, {"rel": "collection", "type": "application/json", "title": "Collection", "name": "collection", "description": "Collection", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main"}], "time": {"date": "2020-01-01T00:00:00Z"}}], "links": [{"rel": "self", "type": "application/geo+json", "title": "This document as GeoJSON", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=ta212&f=json", "hreflang": "en-US"}, {"rel": "alternate", "type": "text/html", "title": "This document as HTML", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=ta212&f=html", "hreflang": "en-US"}, {"rel": "collection", "type": "application/json", "title": "Collection URL", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main", "hreflang": "en-US"}, {"type": "application/geo+json", "rel": "first", "title": "items (first)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=ta212&", "hreflang": "en-US"}, {"rel": "last", "type": "application/geo+json", "title": "items (last)", "href": "https://repository.soilwise-he.eu/cat/collections/metadata:main/items?keywords=ta212&offset=2", "hreflang": "en-US"}], "numberMatched": 2, "numberReturned": 2, "distributedFeatures": [], "timeStamp": "2026-05-25T07:50:09.593166Z"}