Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 28 for “"Seismic Vulnerability"”.
-
Seismic Vulnerability Analysis of Scoured Bridge Systems
… of multi-hazard earthquake and scour on the seismic performance of river-crossing bridges. The general objective of this dissertation is to assess the seismic vulnerability of bridge structures considering flooding-induced scour in a general multi-hazard context. To meet this objective, five …
-
Semplified seismic Vulnerability Assessment of Masonry Arch Bridges
This study concerns seismic vulnerability assessment of masonry arch bridges with common typologies in Europe. Bridges are, in most cases, the most vulnerable elements in the transportation network during an earthquake; therefore, their seismic vulnerability assessment is necessary for a proper …
-
Seismic vulnerability of historical structures with the discrete element method
… number of important monuments are exposed to seismic hazard, there is a growing interest for the problem of strengthening such structures in order to reduce their seismic vulnerability, while preserving their original architectural integrity. However the seismic vulnerability assessment of …
-
Seismic Vulnerability Assessment of As-Built and Retrofitted Multi-Frame Box-Girder Bridges
… In this case, deck unseating is expected if the seismically induced displacements are excessively large. The second case occurs when the two adjacent frames move towards each other. In this case the span pounding can cause localized damage and collisions between two adjacent frames and also …
-
Seismic vulnerability assessment of off-ramp structures of the Las Vegas downtown viaduct
… to a strong earthquake were determined using the seismic provisions of the current bridge design codes. In the third stage, non-linear three dimensional finite element models of the off ramp bridges were used to simulate the seismic response of the off-ramp structures to the Sylmar and the ATC …
-
Assessing the Effectiveness of Reducing Seismic Vulnerability by a Program of Bridge Pier Wrapping
… of the bridge inventory in the New Madrid Seismic Zone as a whole and has characteristics that differ markedly from those for inventories of bridges in California seismic zones; (b) There is likely to be significant damage to multi-column bents of bridges on primary emergency routes if an …
-
Evaluation of seismic Vulnerability and Strengthening of heritage Buildings. Case Study: The Giralda of Seville
… of cultural heritage through by analysing the seismic behaviour of heritage buildings and their subsequent reinforcement. To achieve this goal, the study focuses on assessing the seismic vulnerability of the Giralda of Seville. The failure mechanisms and potential damage that the building could …
-
Macro-element nonlinear dynamic analysis for the assessment of the seismic vulnerability of masonry structures
… due to their weak performance when subjected to seismic actions. For instance, historic structures were built based on simple rules since seismic codes were not properly established at the time of their construction. On the other hand, many masonry structures, especially in developing countries, …
-
AN EQUIVALENT NON-UNIFORM INELASTIC BEAM-LIKE MODEL FOR THE SEISMIC VULNERABILITY ASSESSMENT OF BUILDINGS
… beam-like model has also been adopted for the seismic vulnerability assessment of new and existing buildings and it turned out to be a low computational tool to be effectively used for a reliable construction of fragility curves. It has been highlighted that the obtained results for the …
-
Assessment of the Seismic Vulnerability of Wall Pier Supported Highway Bridges on Priority Emergency Routes in Southern Illinois
Typical structural characteristics were determined from a sample of 22 southern Illinois priority emergency route wall pier supported bridges. A summary of these characteristics is given. These structural details were used to construct two sets of three-dimensional nonlinear numerical models, one …
-
Gesamtkonzept zur Ermittlung der seismischen Vulnerabilität von Bauwerken am Beispiel unterirdischer Rohrleitungen
… work an overall concept for evaluating the seismic vulnerability of structures exemplified through underground pipelines is developed. With it the following questions are to be answered: - How big is the seismic vulnerability of existing pipelines? The investigations necessary to answer this …
-
Probabilistic Assessment of Non-Ductile Reinforced Concrete Frames Susceptible to Mid-America Ground Motions
… region to be ignored until quite recently. The seismic performance of reinforced concrete (RC) frames in the CEUS, which have primarily been designed for gravity load effects, is expected to be deficient when subjected to earthquakes that are judged, in recent seismological research, as being …
-
Strategies for Seismic Assessment of Common Existing Reinforced Concrete Bridges Typologies
… and 2 are a sort of preliminary work before the seismic event occurs: the creation of a database to collect all information about bridges in specific road/railway networks (step 1) and the generation of fragility curves for each bridge (step 2): fragility curves are instruments describing the …
-
Probabilistic Seismic Assessment of Structure, Foundation, and Soil Interacting Systems
Seismic vulnerability curves of a highway overcrossing bridge in the Central and Eastern United States (CEUS) are derived employing the aforementioned methods with and without soil-structure interaction. Four different approaches of Soil-Structure Interaction (SSI) are tried: (a) Abutments and …
-
Seismic Response and Analytical Fragility Functions for Curved Concrete Box-Girder Bridges
… may lead to significantly different seismic response. Observations from past earthquakes highlighted the seismic vulnerability of these bridges due to this coupled response. The consequence of bridge damage on the performance of transportation system is commonly assessed through …
-
The dynamic behavior of the Basilica of San Francesco of Assisi
… are employed to show trends in the structure's seismic response given the changes in stiffness and mass of the roof over the centuries. The findings of the analytical model suggest that the roof interventions have had the eect of decreasing the structure's fundamental period, and therefore, …
-
Application of plastic design in steel table shelters
… can protect school children in areas of high seismic vulnerability by providing shelters in the form of lightweight steel-framed school desks. The investigation of the concise, plastic calculations used to design the Morrison Shelter serve as inspiration for replication in future applications …
-
Improved seismic analysis of unreinforced masonry buildings with flexible diaphragms
… challenge for the assessment of their seismic vulnerability. When diaphragms are flexible, different parts of a structure can interact with each other dynamically, in a way not typically encountered in modern structures with rigid diaphragms. As a result, the seismic analysis methods …
-
A data-driven framework to support resilient and sustainable early design
… buildings in Charleston, South Carolina, where seismic vulnerability and environmental performance are linked to topology and design parameters.
Page 1 of 2