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Civil Engineering

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Articles 10501 - 10530 of 11805

Full-Text Articles in Civil and Environmental Engineering

Three-Dimensional Slope Stability Analysis, Rong-Her Jimmy Chen Jan 1981

Three-Dimensional Slope Stability Analysis, Rong-Her Jimmy Chen

JTRP Technical Reports

No abstract provided.


Development Of A System For The Evaluation Of Pavements In Indiana : Summary Report, Eldon J. Yoder Jan 1981

Development Of A System For The Evaluation Of Pavements In Indiana : Summary Report, Eldon J. Yoder

JTRP Technical Reports

No abstract provided.


H & V News Jan 1981

H & V News

Building Services Engineering

No abstract provided.


Compressibility Of Field Compacted Clay : Interim Report, Ping-Sien Lin, C. W. Lovell Jan 1981

Compressibility Of Field Compacted Clay : Interim Report, Ping-Sien Lin, C. W. Lovell

JTRP Technical Reports

No abstract provided.


Prediction And Control Of Field Swell Pressures Of Compacted Medium Plastic Clay : Interim Report, Gregory Matthew Terdich Jan 1981

Prediction And Control Of Field Swell Pressures Of Compacted Medium Plastic Clay : Interim Report, Gregory Matthew Terdich

JTRP Technical Reports

No abstract provided.


A Rockwell Hardness Test For Portland Cement Concrete, Douglas Windslow Jan 1981

A Rockwell Hardness Test For Portland Cement Concrete, Douglas Windslow

JTRP Technical Reports

No abstract provided.


Load And Resistance Factor Design Of Cold-Formed Steel Structural Members, Boonsong Supornsilaphachai Jan 1981

Load And Resistance Factor Design Of Cold-Formed Steel Structural Members, Boonsong Supornsilaphachai

Doctoral Dissertations

"In a traditional design, the Allowable Stress method has long been used for the design of cold-formed steel structures. In this design approach, the allowable stress is always used to prevent the possible structural failure by using an appropriate factor of safety selected primarily on the basis of engineering judgment and long-time experience.

Recently, the concepts of risk and reliability analysis have been successfully applied to many fields of engineering. By applying the theories of probability and statistics, the load and resistance design criteria for steel structures have been developed for the design of hot-rolled steel shapes and built-up members. …


Treatment Of Sanitary Wastes At Interstate Rest Areas, James E. Etzel Jan 1981

Treatment Of Sanitary Wastes At Interstate Rest Areas, James E. Etzel

JTRP Technical Reports

No abstract provided.


Pore Size Distribution Of Sandy Soils And The Prediction Of Permeability : Interim Report, Charng-Hsein Juang Jan 1981

Pore Size Distribution Of Sandy Soils And The Prediction Of Permeability : Interim Report, Charng-Hsein Juang

JTRP Technical Reports

No abstract provided.


An Investigation Of The Dynamic Response Of The Activated Sludge Process, Tin-Bai Pan Dec 1980

An Investigation Of The Dynamic Response Of The Activated Sludge Process, Tin-Bai Pan

Dissertations

A new mathematical model, derived from first principles of mass balance, is proposed for describing the mass transfer response of an activated sludge aeration tank in terms of a fluidized bed. The operational data to verify the proposed model were taken from an existing conventional wastewater treatment plant and a bench scale pilot plant.

The mass transfer rate, (KdAs), was presented by an empirical dimensionless group function as follows:

((KdAs)Dp/Dv) = fAc (uDp/ν)a ((ν/Dν)(MLSS))b

Or

Sh = f(Ac/As ) …


H & V News Dec 1980

H & V News

Building Services Engineering

No abstract provided.


H & V News Nov 1980

H & V News

Building Services Engineering

No abstract provided.


H & V News Oct 1980

H & V News

Building Services Engineering

No abstract provided.


H & V News Sep 1980

H & V News

Building Services Engineering

No abstract provided.


H & V News Aug 1980

H & V News

Building Services Engineering

No abstract provided.


H & V News Jul 1980

H & V News

Building Services Engineering

No abstract provided.


H & V News Jun 1980

H & V News

Building Services Engineering

No abstract provided.


H & V News Plus Hevac 80 Exhibition Preview May 1980

H & V News Plus Hevac 80 Exhibition Preview

Building Services Engineering

No abstract provided.


H & V News Apr 1980

H & V News

Building Services Engineering

No abstract provided.


H & V News Mar 1980

H & V News

Building Services Engineering

No abstract provided.


The Effect Of Residual Stress Distribution On The Ultimate Strength Of Tubular Beam-Columns, Steven L. Barrett Feb 1980

The Effect Of Residual Stress Distribution On The Ultimate Strength Of Tubular Beam-Columns, Steven L. Barrett

Dissertations and Theses

Using data for the longitudinal residual stress distribution in welded steel tubes, curves describing these distributions are selected for study. Each of these curves are checked for static balance across the tube cross section. The curves that exhibit an imbalance are adjusted by a combination of a simplified model for each and the use of a computer program that is developed to calculate the resulting forces and moments on the cross section. The residual stress in the area of the tube wall opposite the longitudinal weld is found to be the most important in the adjustment to obtain exact equilibrium. …


H & V News Feb 1980

H & V News

Building Services Engineering

No abstract provided.


Annotated Biobliography Of Remote Sensing For Highway Planning And Natural Resources, An, Daniel L. Civco, William C. Kennard, Michael Wm. Lefor Jan 1980

Annotated Biobliography Of Remote Sensing For Highway Planning And Natural Resources, An, Daniel L. Civco, William C. Kennard, Michael Wm. Lefor

Storrs Agricultural Experiment Station

No abstract provided.


Ozonation Of A Municipal Groundwater Supply To Reduce Iron, Manganese, And Trihalomethane Formation, Richard Alan Stoebner Jan 1980

Ozonation Of A Municipal Groundwater Supply To Reduce Iron, Manganese, And Trihalomethane Formation, Richard Alan Stoebner

Electronic Theses and Dissertations

The purpose of this investigation was to determine the feasibility of using ozonation followed by filtration for removal of iron and manganese and prevention of trihalomethane formation. To avoid disruption of the treatment plant operation, pilot-scale units were used in the investigation. The filter media and filtering rates employed during the pilot studies were identical to those used at the East Water Treatment Plant.


Traffic Speed Report No. 111 : Interim Report, Richard Philip Guenthner, George K. Stafford Jan 1980

Traffic Speed Report No. 111 : Interim Report, Richard Philip Guenthner, George K. Stafford

JTRP Technical Reports

No abstract provided.


Determination Of Contract Time Durations For Ishc Highway Construction Projects, James E. Rowings Jan 1980

Determination Of Contract Time Durations For Ishc Highway Construction Projects, James E. Rowings

JTRP Technical Reports

No abstract provided.


A Cost Effectiveness Approach For The Evaluation Of Highway Safety Improvements In The State Of Indiana, Taro Kaji Jan 1980

A Cost Effectiveness Approach For The Evaluation Of Highway Safety Improvements In The State Of Indiana, Taro Kaji

JTRP Technical Reports

No abstract provided.


Thin, Applied Surfacing For Improving Skid Resistance Of Concrete Pavements, Charles F. Scholer Jan 1980

Thin, Applied Surfacing For Improving Skid Resistance Of Concrete Pavements, Charles F. Scholer

JTRP Technical Reports

No abstract provided.


A Study Of Mechanical Degradation Of A Coarse Aggregate Subject To Repeated Loading, Mark Alan Roenfeldt Jan 1980

A Study Of Mechanical Degradation Of A Coarse Aggregate Subject To Repeated Loading, Mark Alan Roenfeldt

Masters Theses

"This investigation concerns itself with the problem of mechanical degradation of a coarse aggregate and specifically as it is used as railroad ballast. Laboratory tests were used to study the aggregate with respect to its plastic deformation characteristics, the amount of degradation, changes in gradation, and the rate of change of degradation as a function of the number of load cycles.

The repeated load triaxial tests were used to study how degradation occurs with respect to aggregate gradation, relative density, and the number of load applications. The Los Angeles abrasion test was also used to determine the degradation of the …


Analysis Of Hardened Concrete For Admixture Content, William Lee Dolch Jan 1980

Analysis Of Hardened Concrete For Admixture Content, William Lee Dolch

JTRP Technical Reports

No abstract provided.