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  • Response of equipment in resilient-friction base isolated structures subjected to ground motion

    Creator:
    Lei, Kai-ming
    Abstract:
    The response of lightweight equipment in structures supported on resilient-friction-base isolators (R-FBI) subjected to harmonic ground motion and various earthquake ground motions is examined. The equipment-structure base system is modeled as a three degree-of-freedom discrete system (SDOF subsystems). An efficient semi-analytical numerical solution procedure for the determination of equipment response...
    Resource Type:
    Dissertation
    Full Text:
    . INTRODUCTION The design of earthquake resistant structures has become more and more important in recent years

  • Dynamic response of flexible rotating machines subjected to ground motions

    Creator:
    Su, Wen-Chyi
    Abstract:
    Rotating machine play an important role in modern technology. Compressors in ventilating and cooling systems, pumps in power generation facilities, as well as high speed computer are all examples of flexible rotating machinery that must remain functional during and after a sever earthquake. Recent earthquakes have demonstrated that an aseismically...
    Resource Type:
    Masters Thesis
    Full Text:
    must remain functional during and after a sever earthquake. Recent earthquakes have demonstrated that

  • Dynamic behavior of metal-plate-connected wood truss joints

    Creator:
    Kent, Scott M.
    Abstract:
    The objectives of this research were to evaluate the behavior of actual metal-plate-connected (MPC) tension-splice and heel wood truss joints under seismic loads from the Northridge earthquake (tension-splice joints only) and under loads from a large artificial earthquake (1.0 g's and 0.67 g's maximum horizontal and vertical accelerations, respectively). A...
    Resource Type:
    Masters Thesis

  • Seismic protection of flexible rotating machines using base isolators

    Creator:
    Su, Wen-Chyi
    Abstract:
    Base isolation is an alternative seismic design strategy in which the primary structures and their internal components are uncoupled from the potentially damaging horizontal components of an earthquake by base isolators which attenuate the transmission of horizontal acceleration into the system. Rotating machines are among the key internal components of...
    Resource Type:
    Dissertation
    Full Text:
    earthquake. One of the more difficult issues to address from conventional design viewpoint is that of

  • Development of a seismic rehabilitation master plan for the Oregon State University campus

    Creator:
    Trautwein, Steven R.
    Abstract:
    The recent increase in awareness of the seismic hazards in Oregon has led to a concern regarding the safety of Oregon State University buildings. While the decision has been made to initiate the seismic rehabilitation of campus facilities, the question of which buildings pose the greatest hazards, and are therefore...
    Resource Type:
    Masters Thesis

  • Deformation-based seismic design models for waterfront structures

    Creator:
    Yang, Dong-Shan
    Abstract:
    Recent experience demonstrates that waterfront structures are vulnerable to earthquake damage. The poor seismic performance of these facilities has been primarily due to liquefaction of backfill and/or foundation soils and the lack of seismic design standards for waterfront structures. The seismic performance of waterfront structures is a key issue in...
    Resource Type:
    Dissertation
    Full Text:
    insure the serviceability of the waterfront components after a design-level earthquake. This research

  • Slotted-bolted friction damper as a seismic energy dissipator in a braced timber frame

    Creator:
    Tjahyadi, Alfred
    Abstract:
    Friction dampers have been used successfully to dissipate seismic energy in steel and concrete structures. The application is new to timber structures. The objectives of this research were to design a slotted bolted connection (SBC) and evaluate its potential as a passive energy damper in timber brace. The research was...
    Resource Type:
    Masters Thesis
    Full Text:
    typical dynamic test is the dynamic shake table test (earthquake simulator). For testing slotted bolt

  • Steel confined yielding damper for earthquake resistant design

    Creator:
    Newell, James D.
    Abstract:
    An experimental study of a passive energy dissipation tension-compression yielding brace or buckling restrained brace has been conducted. The Confined Yielding Damper (CYD) consists of a steel yielding core confined within a tube filled with non-cohesive media. The external tube and confined non-cohesive media provide lateral stability to the core...
    Resource Type:
    Masters Thesis
    Full Text:
    Earthquake Resistant Design by James D. Newell A THESIS submitted to Oregon State University in partial

  • Nonlinear dynamic analysis of heavy timber frame structures including passive damping devices

    Creator:
    Eiden, Claudia M. T.
    Abstract:
    Engineering analysis of heavy timber structures under dynamic loads is generally lacking. Some literature suggests that heavy timber structures are stiffer than expected, but popular engineering opinion is to the contrary. In addition, prior research has shown that passive friction dampers can be used in timber structures for the intended...
    Resource Type:
    Masters Thesis

  • The seismic geotechnical modeling, performance, and analysis of pile-supported wharves

    Creator:
    McCullough, Nason J.
    Abstract:
    This dissertation presents the results of a research effort conducted to better understand the seismic performance and analysis of pile-supported wharves. Given the limited number of well-documented field case histories, the seismic performance of pile-supported wharves has been poorly quantified, and the analysis methods commonly employed in engineering practice have...
    Resource Type:
    Dissertation
    Full Text:
    undergraduate studies, and Scott Schlechter, a good friend and graduate colleague, who helped design, construct