Engineering Commons^™

Structural Behavior Of Members Consisting Of Flat And Curved Elements, M. Brad Parks

Doctoral Dissertations

"Local buckling of stiffened and unstiffened curved elements has been investigated both experimentally and analytically. Stiffened curved elements are supported on all four edges while unstiffened curved elements are supported along three edges with one longitudinal edge free.

A series of stub column, beam, and shear tests have been performed for sections containing curved elements. The tested specimens were formed from sheet steels with yield strengths ranging from 27 to 88 ksi. The radius-to-thickness, R/t, values of the curved elements varied from 12 to 438 whereas the arc length-to-thickness, bit, ratios ranged from 23 to 218.

As a result of …

Groundwater Recharge Planning Using Resolvent Discrete Kernels, Richard C. Peralta, Krzyzstof G. Kowalski, H. J. Morel-Seytoux

Civil and Environmental Engineering Faculty Publications

No abstract provided.

Decision Support For Optimal Regional Groundwater Management Strategy Modification, Richard C. Peralta, Paul J. Killian

Civil and Environmental Engineering Faculty Publications

An interactive decision support program is presented for the rapid modification of optimal regional multiobjective groundwater planning strategies. This capability is important for water managers seeking to select the most satisfactory groundwater management strategies for their areas. The program guides decision maker(s) in refining numerically optimal regional strategies into strategies that may be socially or politically more acceptable. Strategy refinements are made by informed modification of constraining conditions on regional objectives or local variables. Application is illustrated by. modifying a bi criterion, sustained groundwater Withdrawal strategy for minimizing the cost of meeting regional water demand on the Arkansas Grand Prairie, …

Development Of Design Criteria For Ferritic Stainless Steel Cold-Formed Structural Members And Connections, Pieter Van Der Merwe

Doctoral Dissertations

"This dissertation describes the development of the basic criteria needed for the design of structural members cold-formed from certain ferritic stainless steels. The Allowable Stress Design method as well as the Load and Resistance Factor Design method receive attention. The ferritic stainless steels under consideration are: Types AISI 409 and 430 as well as a modified Type 409 steel, designated 3CR12 steel, developed and produced by the speciality steel producing company, Middelburg Steel and Alloys in South Africa.

The mechanical properties needed for structural design are established. It is shown through an experimental study that the design provisions for the …

Bear River Water Quality: Phosphorus Control And The Impacts Of Exchanging Water With Willard Reservoir, Darwin L. Sorensen, Craig Caupp, Kenneth W. Barker, Jean M. Ihnat

Reports

No abstract provided.

Expected Water Surface Levels For The Great Salt Lake, L. Douglas James

Reports

Flooding at the Great Slat Lake could become a major disaster through the high cost of coping with the rising level, sudden collapse of protective levees, failure of pumping to the West Desert to induce increased evaporation, or, fiscally, by a rapid drop in the lake level just after a large protective decision making in the private sector, provide for the design of hydrologically safe levees, and optimize pumping schemes for moving water within a partitioned lake. Doing so will require crossing major theoretical frontiers in the study of basin scale hydrology in an arid climate and for forecasting extreme …

Engineering Treatment Of Hazardous Wastewaters Utilizing Dye-Sensitized Photooxidation, Betty-Ann Naeger, R. Ryan Dupont, William M. Moore

Reports

Studies were conducted to determine the applicability of photooxidation for the degradation of selected hazardous and refractory organic compounds. These photochemical oxidation reactions occur through the transfer of energy from electronically excited sensitizer molecules which attain excited states by absorbing visible light energy. Optimum conditions for photooxidation were established based on sensitizer concentration and reaction pH for four polynuclear aromatic pollutants. The rate of photooxidation was found to be independent of the initial substrate concentration for methylene blue-sensitized reactions, and dependent on substrate concentration for solutions without a sensitizing dye. Photolysis of substrate mixtures established acridine and anthracene as photochemically …

Groundwater Resources Of The Virgin River Basin In Utah, Calvin G. Clyde

Reports

The Division of Water Resources is conducting a study of further water development in the Virgin River Basin. This report examines the effects of groundwater development as a part of the overall study. The study area includes about 1000 square miles in the Central Virgin River Basin east of the Hurricane Fault. The deeply incised Virgin River has cut a youthful drainage network with deep canyons and steep escarpments and drains out of southwest Utah across Arizona to Lake Mead in Nevada. A basin-wide geologic map emphasizing groundwater features has been prepared from available reports. Outcrops of the principal sedimentary …

Soil-Shrinkage Induced Structural Failure, David Newton Richardson, Richard Wesley Stephenson, Daniel Molloy

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This Paper Describes an Investigation into the Causes of Structural Damage to a Retirement Home and the Subsequent Rehabilitation Project. the Investigation Revealed that the Damage Was Caused by Shrinkage of the Soils Beneath the Structure's Foundation as a Result of Dry Weather, Shrinkage-Prone Characteristics of the soils, Deviation from the Original Design, and Poor Construction Techniques. the Structure Was Subsequently Underpinned to Rock using the Inclined Drilled Pier Method. Interaction between Design and Construction Professionals is Also Presented. © ASCE.

High Temperature Reactions Of 1,2-Dichloroethane With Water Vapor In A Tubular Reactor, Charles E. Anderson

Theses

This study examines the reaction of l,2-dichloroethane with water vapor. The linear-flow method is utilized, assuming plug flow without axial diffusion. Normal operation is at atmospheric pressure and the reactor is a quartz tube in a thermal region 45 cm in length. Two reactor diameters of 0.4 cm and l.05 cm are used. Water and l,2-dichloroethane enter the system in liquid phase via syringe pumps. After vaporizing in heated tubing, they are combined with argon, the reactor carrier gas. The molar ratio of water to l,2-dichloroethane is 55:l and varied residence times are achieved by changing the argon flowrate. Reactor …

Elastic-Plastic Analysis Of Axisymmetrically Loaded Isotropic Circular And Annular Plates Undergoing Large Deflections, Aiman Raji Akileh

Dissertations and Theses

The concept of load analogy is used in the elastic and elastic-plastic analysis of isotropic circular and annular plates undergoing moderately large deflection. The effects of the nonlinear terms of lateral displacement and the plastic strains are considered as additional fictitious lateral loads, edge moments, and in-plane forces acting on the plate. The solution of an elastic or elastic-plastic Von Karman type plate is hence reduced to a set of two equivalent elastic plate problems with small displacements, namely, a plane problem in elasticity and a linear elastic plate bending problem. The method of finite element is employed to solve …

Managing Artificial Groundwater Recharge, Richard C. Peralta, K. G. Kowalski, H. J. Morel-Seytoux

Civil and Environmental Engineering Faculty Publications

Increase in maximum groundwater mining resulting from recharge basin usage in the Grand Prairie is reported. Management model incorporates new influence coefficients that describe effect on groundwater levels of simultaneously' occurring basin/aquifer interflow and groundwater extraction.

Electric Power Transmission & Purchases : Report Of A Study By The Joint Standing Committee On Utilities, 112th Maine Legislature, Maine. Legislature. Joint Standing Committee On Utilities

Maine Collection

Electric Power Transmission & Purchases : Report Of a Study By the Joint Standing Committee on Utilities, 112th Maine Legislature

Maine Legislature. Joint Standing Committee on Utilities.

Augusta, Maine (December 2, 1986).

Contents: Introduction / Issues & Recommendations / Review of 1986 Legislation / Maine's Electric Power Picture / Technical Analysis of Transmission & Wheeling / Economic Implications of Transmission & Wheeling /. Legals Analysis of Transmission & Wheeling / Proposed Legislation / Appendices / Tables & Figures

Status Report For Selected Projects Containing Experimental Features, Kentucky Transportation Research Program

Kentucky Transportation Center Research Report

Projects containing experimental features or innovative concepts were selected for long-term monitoring and are reported herein. Certain projects are recommended for more intensive investigation under other appropriate ongoing studies.

A Checklist And Sample Specifications For Single And/Or Tandem Axle Dump Trucks, Herpicc

Indiana Local Technical Assistance Program (LTAP) Publications

This publication is a revision to the February 1983 publication of the same title and contains a checklist and sample specifications to assist Indiana's Local Public Agencies in the procurement of dump trucks for use in the maintenance of local roads and streets. Most LPA's do not purchase such equipment in large numbers, hence many do not have highly qualified and experienced staff to assist in the development of the specifications for purchasing new equipment.

This checklist and the sample specifications provide for individual preferences. They are not intended to dictate decisions or restrict bidding. If followed, they will assure …

Optimal Groundwater Mining Methods, Richard C. Peralta, Krzysztof G. Kowalski

Civil and Environmental Engineering Faculty Publications

No abstract provided.

The New European Recommendations For The Design Of Light Gauge Steel Members, Per O. Thomasson

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.

Post-Yielding Strength Of Cold-Formed Steel Flexural Members, Muzaffer Yener

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.

Composite Slabs Subjected To Repeated Point Loading, R. M. Schuster, Ramadan E. Suleiman

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.

Cold-Formed Steel Compression Members Embedded In Grain, Ahmed Sabry, George Abdel-Sayed

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.

Web Crippling Strength Of High Strength Steel Beams, Chiravut Santaputra, M. Brad Parks, Wei-Wen Yu

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.

Earthquake Response Of Locally Buckled Frames, George E. Blandford, Gordon C. Glass

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.

Flexural-Torsional Buckling Of Storage Rack Columns, O. Roos, Gregory J. Hancock

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.

Methods For Predicting Strength In Composite Slabs, Larry D. Luttrell

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.

Aluminum-Zinc Alloy Coated Steel For Composite Slabs, Paul G. Schurter, R. M. Schuster

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.

Reformatting The Aisi Cold-Formed Steel Design Specification, Clarkson W. Pinkham

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.

Mbma's New Low-Rise Building Systems Manual, Dale C. Perry, Joe N. Nunnery

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.

Current Research On Cold-Formed Steel Structures, Asadul H. Chowdhury

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.

Literature Survey Of Cold-Formed Structures, Roger A. Laboube

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.

Aisi's 1986 Cold-Formed Steel Design Specification -- An Overview, Albert L. Johnson

CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018)

No abstract provided.