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  • Seismic performance and collapse assessments of reinforced concrete lateral- force resisting systems

    Creator:
    Buniya, Mustafa Kamil
    Abstract:
    Nonlinear response history analysis (NRHA) is increasingly becoming more accessible and prevalent in research and practice. As the accuracy of the NRHA results depends on the ground motion characteristics and the robustness of the numerical model, research has focused on the development of guidance for performance-based seismic design and assessment...
    Resource Type:
    Dissertation
    Full Text:
    analysis. In the first part, the seismic performance of the reinforced concrete special moment frame

  • Evaluation of finite element techniques for soil reinforcement applications

    Creator:
    Berg, Ryan Robert
    Abstract:
    A literature review and a computer study are conducted to identify the requirements of finite element programs for the specific use of discrete analyses of reinforced soil structures. The utility of six commercially available programs are appraised with respect to the identified requirements. The results of the study are directed...
    Resource Type:
    Masters Thesis
    Full Text:
    structures and choose to utilize an available program for the analyses, instead of writing a special finite

  • 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:
    response quantities of special interest such as sliding displacement, residual displacement, cumulative

  • Requirements for successful irrigation systems in the Senegal River Basin (Mauritania)

    Creator:
    Abba, Fatima Zahra
    Abstract:
    Implementation of a small-scale irrigation project in southern Mauritania is analyzed in this report. The main objective is to demonstrate that small-scale irrigation farming is the best suited solution for Mauritania's agriculture. To reach this objective different steps are taken in this study. The first step highlights the different aspects...
    Resource Type:
    Masters Thesis
    Full Text:
    report. The main objective is to demonstrate that small-scale irrigation farming is the best suited

  • Evaluation of polymer modified asphalt in hot mix pavements

    Creator:
    Ifft, Charles
    Abstract:
    Polymer modified asphalts have recently been the focus of much attention in the U.S. due to claims that polymer additives will lengthen the life of an asphalt pavement. Much of the published research on this topic has been concentrated on the effects of polymer modifiers on binder and mixture properties....
    Resource Type:
    Masters Thesis
    Full Text:
    tests. These con ventional binder tests do not fully address the special character istics of polymer

  • Sand pumping efficiency of a water ejector apparatus

    Creator:
    Saguanwongse, Suvat
    Abstract:
    The purpose of this investigation is to study the effect of the solid transport capacity in pumping operation: A special type of jet apparatus was investigated which emits a water jet downward counter current to delivery flow, from inside of the suction pipe toward sediment to be excavated. Two sizes...
    Resource Type:
    Masters Thesis
    Full Text:
    solid transport capacity in pumping operation: A special type of jet apparatus was investigated which

  • The Effects of Construction Practices on Concrete Construction Joint Performance

    Creator:
    Panduranga Setty, Shreyas
    Abstract:
    Concrete is the most widely used construction material in the world. When constructing large concrete structures, concrete may have to be placed in multiple lifts. In these cases, fresh concrete is placed on hardened concrete. The interface that is formed between these two lifts of concrete is known as a...
    Resource Type:
    Masters Thesis
    Full Text:
    their strength and durability. State Highway Agencies (SHAs) require special treatment of these

  • Cyclic performance of connections used in hybrid cross-laminated timber

    Creator:
    Mahdavifar, Vahid
    Abstract:
    One of the recent additions to the panoply of engineered wood products is cross-laminated timber (CLT). CLT is a prefabricated, large-scale, solid wood panel that consists of multiple layers of lumbers stacked together, with each layer arranged perpendicular to the next layer, glued with structural grade adhesives, and pressed. The...
    Resource Type:
    Dissertation
    Full Text:
    expected that as the CLT market will continue to mature, more diversified grades and special CLT products

  • Lateral Load Path Analysis : Practical Methods for Light-Frame Modular Structures

    Creator:
    Huynh, Thanh Q.
    Abstract:
    The objectives of this study are to use SAP2000 to investigate lateral load paths and system behavior in a modular, light-frame wood structure by investigating different foundation configurations and to further develop and validate existing modeling techniques of shear wall elements based on the Perforated Shear Wall Method. The modeling...
    Resource Type:
    Masters Thesis
    Full Text:
    within limits similar to those provided by the Special Design Provisions for Wind and Seismic Design

  • Ambient current effects on vertical selective flow withdrawal in a two layer reservoir system

    Creator:
    Charbeneau, Randall Jay
    Abstract:
    Withdrawal from a two-layer flow field is examined in terms of the degree of selectivity of the withdrawal flow and its dependence on an ambient current. Selectivity is defined as the bias of withdrawing one layer more strongly than the other; the extreme' case is complete selective withdrawal, where one...
    Resource Type:
    Masters Thesis
    Full Text:
    -linear function of the separating height. Of special interest is the observation that the degree of