Free Torsional Vibrations of Suspension Bridges
A generalized theory of free torsional vibration for a wide class of suspension bridges with double lateral systems is developed, taking into account warping of the bridge deck cross section...

Meridional Imperfection in Cooling Tower
A detailed study of the effect of axisymmetric meridional imperfection in hyperbolic cooling towers is presented. The imperfection is represented by two conical frustrums connected at...

Cable Spring Constants for Guyed Tower Analysis
In current procedures for the structural analysis of guyed towers the effects of the guys on the tower displacements are estimated by determining the guy force on the tower with the tower...

Meridionally Imperfect Cooling Towers
With the recent collapse of a cooling tower in Scotland having been attributed to the presence of imperfections in the positioning of the shell surface, the influences on the linear elastic...

Buckling of Stiffened Hyperboloidal Cooling Towers
With increasing dimensions of the cooling towers built of reinforced concrete, the buckling behavior becomes crucial in the proportioning of the shell. Ring stiffeners prove to be most...

Hyperbolic Cooling Tower Dynamic Response to Wind
The dynamic response of a hyperbolic cooling tower experiencing a wind loading is determined by a finite element method of analysis using a step-by-step numerical method of timewise integration....

Wet Cooling Tower Backfitting Economics
Following enactment of legislation designed to reduce thermal discharge to the environment, the electric utility industry is faced with the prospect of backfitting their existing installations...

Vibration of Towers Due to Galloping of Iced Cables
Wind tunnel experiments were conducted with stationary and vibrating models whose cross sections were similar to those of some ice formations observed. Aerodynamic data established for...

Power Development and Water Allocation in Ohio River Basin
Widespread adoption of evaporative cooling towers will significantly increase water consumption by power plants over the coming decades. The analysis presented includes consideration of...

Finite Element Instability Analysis of Hyperbolic Cooling Towers

Treatment of Cooling Tower Blowdown
Cooling tower blowdown can contain zinc and chromates which must be removed prior to discharge into the environment. Treatment alternatives include chemical reduction, ion exchange, and...

EPA's Cooling Tower Plume Research
A comprehensive review is made of EPA's cooling tower plume research program with particular attention to plume modeling. The research began in 1969 with a modest effort to define the...

Pasco-Kenneewick Bridge — The Longest Cable-Stayed Bridge in North America
This 2503-ft long structure, built in an earthquake zone, is only the second of its kind to be constructed in the U.S. It boasts a continuous concrete girder, supported from steel cables...

Dry-Wet Tower Evaporation and Fog Psychometrics
To determine the adequacy of existing dry-wet tower configurations and to evaluate proposed combinations of dry-wet towers with regard to various environmental consequences, it is necessary...

Thermodynamic Models of Dry-Wet Cooling Towers
The basic thermodynamic models, which are necessary for a comprehensive consideration of all cooling system costs, are outlined herein for the combination dry-wet cooling tower. The various...

Gust Factors for Hyperbolic Cooling Towers
The wind pressure distribution and dynamic behavior of hyperbolic cooling towers are significantly different from those of simple slender structures. Therefore, the gust response factors...

Optimum Structural Design by Dynamic Programming
Dynamic programming or recursive optimization is especially useful for multistage processes in which decisions taken at one stage do not effect the previous stages. Dynamic programming...

Fifty Years of Riveted, Bolted, and Welded Steel Construction
The last 50 yr have been a time of unprecedented structural developments with the advances in the structural fastening field playing an important part in these developments. Structural...

Economic factors of Dry-Wet Cooling Towers
Comtemporary dry-wet design efforts and economic studies are reviewed and promising configurations are delineated. The basic accounting scheme and all relevant parameters necessary for...

Mean Wind Loading on Rough-Walled Cooling Towers
Mean pressure distributions were measured on a cooling tower model in uniform wind for several longitudinal-rib configurations and two uniformly distributed roughnesses. The base pressure...

 

 

 

 

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