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Filtering by: Subject Harbors -- Earthquake effects Remove constraint Subject: Harbors -- Earthquake effects Contributor advisor sim Barbosa, Andre R. Remove constraint Contributor advisor sim: Barbosa, Andre R.

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  • Effect of subduction zone earthquakes on SDOF bridge models

    Creator:
    Long, Yicheng
    Abstract:
    Current bridge design codes do not account for the effects of duration of mega-thrust subduction zone earthquakes. Furthermore, codes and even recent performance-based design methodologies only make use of the peak response quantities (forces, displacements, and ductility demands) and do not account for the increased number of inelastic cycles that...
    Resource Type:
    Masters Thesis
    Full Text:
    subduction zone earthquake ground motions. The main goal of this research is to investigate the effect of

  • Seismic performance of reinforced concrete bridge columns constructed with grade 80 reinforcement

    Creator:
    Link, Tim B.
    Abstract:
    The research presented in this thesis assessed the use of high strength steel (HSS) reinforcement for use in reinforced concrete (RC) bridge columns. HSS is not currently allowed in reinforced concrete bridge columns due to a lack of information on the material characteristics and performance information when used in RC...
    Resource Type:
    Masters Thesis
    Full Text:
    grade of reinforcement, effect of the longitudinal reinforcement ratio, and the effect of the moment

  • Evaluation of seismic response directional combination rules for existing plan irregular reinforced concrete buildings

    Creator:
    Hussain, Syed Baqir
    Abstract:
    In this thesis, the effectiveness of the 100 percent + XX percent seismic response directional combination rule available in codes and standards is evaluated using simulated nonlinear seismic response of two existing multi-story reinforced concrete plan-irregular buildings. The 5-story and 8-story buildings were designed according to the 1975 seismic codes...
    Resource Type:
    Masters Thesis
    Full Text:
    and experienced the 1999 Ismit, Kocaeli, earthquake. Nonlinear structural models of the buildings

  • Seismic Performance of Square Reinforced Concrete Columns Retrofitted with Titanium Alloy Bars

    Creator:
    Lostra, Mackenzie M. W.
    Abstract:
    Large numbers of reinforced concrete (RC) bridges were built in the past that are now considered seismically deficient. The structural members most likely to be considered deficient are the supporting columns. Typical deficient columns contain inadequate transverse reinforcement and poorly detailed lap splice lengths above the foundation. Insufficient lap splice...
    Resource Type:
    Masters Thesis
    Full Text:
    .................................................................................... 78 Figure 4-16: Deformed column geometry for calculating P-Δ effect

  • Seismic performance of diagrid steel structures using single and double friction mass dampers

    Creator:
    Ramadhan, Garlan
    Abstract:
    The steel diagrid structural system is a recent load bearing and lateral resisting structural system for tall building structures that is relatively unexplored in the western United States. One possible reason for the little use of diagrid systems in earthquake prone regions is the lack of guidelines and application examples...
    Resource Type:
    Masters Thesis
    Full Text:
    United States. One possible reason for the little use of diagrid systems in earthquake prone regions is

  • Soil-bridge interaction during long-duration earthquake motions

    Creator:
    Romney, Kyle T.
    Abstract:
    Earthquake engineering analyses are often performed using shallow, crustal earthquake motions (e.g., 1940 El Centro). However, large areas of the world are subject to subduction zone earthquake motions (e.g., the Pacific Northwest). A subduction zone earthquake motion is characterized by its long duration (e.g., strong shaking lasts for more than...
    Resource Type:
    Masters Thesis
    Full Text:
    , California shallow, crustal earthquake (ACE-MRL, 2013). . . . . . . . . . . . . . . . . . 2 2.1 Effect of

  • Multi-hazard Damage and Loss Assessment of Bridge Networks

    Creator:
    Burns, Patrick O.
    Abstract:
    The overarching objective of this study is to examine and compare the vulnerabilities of bridges combining effects of earthquake-induced ground shaking, ground failure (e.g., landslides and lateral spreading), and tsunami inundation. A parametric study is performed to understand the sensitivity of economic loss and traffic capacity with respect to the...
    Resource Type:
    Masters Thesis
    Full Text:
    examine and compare the vulnerabilities of bridges combining effects of earthquake-induced ground

  • Multi-hazard framework and analysis of soil-bridge systems : long duration earthquake and tsunami loading

    Creator:
    Carey, Trevor J.
    Abstract:
    During the 2011 Great East Japan Earthquake and Tsunami, numerous bridge structures were damage or destroyed. The damage to bridge systems was caused by long duration strong ground shaking, tsunami inundation forces, or both. Long duration strong ground shaking from subduction zone earthquakes and the multi-hazard scenario of combined earthquake...
    Resource Type:
    Masters Thesis
    Full Text:
    loading. Furthermore, the preceding earthquake motion had little effect on the fluid-soil-bridge models