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2010

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Articles 511 - 517 of 517

Full-Text Articles in Architecture

High-Strength Selfconsolidating Concrete Girders Subjected To Elevated Compressive Fiber Stresses, Part 1: Prestress Loss And Camber Behavior, Jared E. Brewe, John J. Myers Jan 2010

High-Strength Selfconsolidating Concrete Girders Subjected To Elevated Compressive Fiber Stresses, Part 1: Prestress Loss And Camber Behavior, Jared E. Brewe, John J. Myers

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The design of prestressed concrete members is restricted by the requirement that the extreme compressive fiber stress at midspan of simply supported members be less than 60% of the concrete compressive strength at release of prestressing. the purported purpose of this limit is to address serviceability performance, but it places unnecessary limits on the capability of the materials. for this research program, six prestressed concrete girders were produced with high-strength self-consolidating concrete and subjected to compressive fiber stress levels ranging from 65% to 84% of the concrete compressive strength at release of prestressing. Time dependent concrete surface strains were measured …

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Special Issue On Modeling In Geotechnical Engineering For Design And Materials, R. A. Tarefder, D. H. Chen, Y. N. Ge Jan 2010

Special Issue On Modeling In Geotechnical Engineering For Design And Materials, R. A. Tarefder, D. H. Chen, Y. N. Ge

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

No abstract provided.

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Finite Element Modeling Of A Field-Scale Shored Mechanically Stabilized Earth Wall, Cheng Chen, Louis Ge, Jia Sheng Zhang Jan 2010

Finite Element Modeling Of A Field-Scale Shored Mechanically Stabilized Earth Wall, Cheng Chen, Louis Ge, Jia Sheng Zhang

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

The shored mechanically stabilized earth (SMSE) walls are typically used in steep terrain to allow construction of a new road or widening of an existing narrow-road by constructing the wall on the outboard of the roadway. the state-of-practice suggests a minimum bench width and MSE reinforcement length equivalent to seventy percent of the design height of the MSE wall. It has been shown recently that shorter reinforcement length is sufficient when the SMSE wall system is constructed, and the retaining benefits provided by the shoring component should be taken into consideration. in this paper, a finite element analysis is performed …

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Simulation Prototyping Of An Experimental Solar House, Anna Osborne, Stuart Baur, Katie Grantham Jan 2010

Simulation Prototyping Of An Experimental Solar House, Anna Osborne, Stuart Baur, Katie Grantham

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This paper presents a comparative analysis between an energy simulation model and an actual solar home. the case study used was the Team Missouri's 2009 Solar Decathlon entry. the home was evaluated using the predicted data developed with the use of Energy-10 Version 1.8. the software simulates the energy use performance of building strategies ranging from building envelope and system efficiency options. the performance data used was collected during the 2009 Solar Decathlon competition. Results comparing energy efficient strategies, consumption and generation are explored with future implications discussed. © 2010 by the authors.

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Re-Designing The 'Great Australian Dream': Creating A More Sustainable Housing Future, Eko Pam Jan 2010

Re-Designing The 'Great Australian Dream': Creating A More Sustainable Housing Future, Eko Pam

Theses : Honours

Sustainable design is a buzzword in the field of architecture, yet very few houses built in Western Australia last year had an environmentally friendly focus. Through much debate and research, designers now have a thorough understanding of the environmental impact ofhousing (Kibert, 2005; Roaf, 2001; Yeang, 1995). The result is that architects worldwide are now offering a more sustainable housing model. These houses are expensive and look very different to the popular project homes. Despite this environmental awareness, the homes Western Australians build appear to be growing larger, with little regard for their future sustainability. There is reluctance among Australians …

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Diapycnal Diffusivities In Homogeneous Stratified Turbulence, D. D. Stretch, S. K. Venayagamoorthy Jan 2010

Diapycnal Diffusivities In Homogeneous Stratified Turbulence, D. D. Stretch, S. K. Venayagamoorthy

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Quantifying diapycnal mixing in stably stratified turbulence is fundamental to the understanding and modeling of geophysical flows. Data of diapycnal mixing from direct numerical simulations of homogeneous stratified turbulence and from grid turbulence experiments, are analyzed to investigate the scaling of the diapycnal diffusivity. In these homogeneous flows the instantaneous diapycnal diffusivity is given exactly by Kd= ∈ρ/ (∂ ρ /∂z)2where ∈ρ is the dissipation rate of density fluctuations, and ∂ ρ /∂z is the mean density gradient. The diffusivity Kd may be expressed in terms of the large-scale properties of the turbulence as K d = γLE …

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Modeling Permanent Deformation Of Unbound Granular Materials Under Repeated Loads, Cheng Chen, Louis Ge, Jiansheng Zhang Jan 2010

Modeling Permanent Deformation Of Unbound Granular Materials Under Repeated Loads, Cheng Chen, Louis Ge, Jiansheng Zhang

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Finite-element analysis on a pavement structure under traffic loads has been a viable option for researchers and designers in highway pavement design and analysis. Most of the constitutive drivers used were nonlinear elastic models defined by empirical resilient modulus equations. Few isotropic/kinematic hardening elastoplastic models were used but applying thousands of repeated load cycles became computationally expensive. in this paper, a cyclic plasticity model based on fuzzy plasticity theory is presented to model the long-term behavior of unbound granular materials under repeated loads. the discussion focuses on the model parameters that control long-term behavior such as elastic shakedown. the performance …

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