Hydrodynamic Effects in Earthquake Response of Embankment Dams
Utilizing a recently developed analytical procedure, the significance of hydrodynamic effects in the earthquake response of embankment dams is evaluated. Effects of dam-fluid interaction,...

SPT Hammer Energy Measurement
A field measurement system and procedure which measures the energy delivered by a drill rig system was developed and successfully used to study the factors which affect delivered energy....

Pulverized Coal Ash as Structural Fill
Untreated pulverized coal ash, consisting of fly ash with varying percentages of bottom ash, was used as a structural fill material to support the foundation of a new precipitator for...

Vertical Vibration of Pile Groups
An approximate theory for vertical vibration of pile groups is presented. The theory accounts for dynamic interaction of piles in a group, weakening of the soil around the pile due to...

Embankment Construction: New Melones Dam
New Melones Dam, located on the Stanislaus River in central California, is a zoned earth and rockfill structure with a maximum height above foundation at embankment centerline of 637 feet...

Dispersion in Tumbling Flow
Steep mountain streams are often in the tumbling flow regime, that is alternating sub- and super-critical flow with energy dissipation caused mainly by sudden changes in slope and cross...

Revised Rainfall Frequency Analysis for Houston
A statistical analysis of rainfall data for four Houston area stations is presented. A similar analysis was performed on the same stations in 1961 by the U.S. Weather Bureau. Both methods...

Flow Under Weir on Scoured Bed
An approximate analysis for seepage flow under a weir, resting on isotropic porous medium of infinite depth, with a vertical sheet pile at the toe and a segmental circular scour, is obtained...

Gumbel's Extreme Value I Distribution: A New Look
Many basic hydrologic textbooks, following Gumbel's original work, advocate use of frequency factors dependent on an integer m for estimation of event levels using the Extreme Value I...

Flow Resistance in Wide Rectangular Channels
Friction coefficients are determined for rectangular channels over a wide range of Reynolds number and a range of width-to-depth ratios of 35 to 1. Comparison with other investigators...

Bedload and Size Distribution in Paved Gravel-Bed Streams
Field data are used to study the size distribution of bedload in paved gravel-bed streams. Similarity analysis yields the results that all grain size ranges are of approximately equal...

Groundwater Contamination due to Continuous Sources
Analytical methods are described to predict the concentrations of effluents released in a two- or three-dimensional groundwater flowfield from a point, line, plane or parallel piped source....

Outfall Diffuser Behavior in Stratified Ambient Fluid
A method for the preparation of design charts for estimating the mixing behavior from outfall diffusers in stagnant stratified ambient fluids is presented. Numerical analyses by traditional...

Complete Triaxial Stress-Strain Curves for Concrete
A method to predict the ascending and the descending parts of stress-strain curve of concrete subjected to triaxial compressive stresses is presented. The proposed analytical stress-strain...

Finite Segment Method for Biaxially Loaded RC Columns
The finite segment method is applied here to solve biaxially loaded reinforced concrete columns. The column is treated as a space structure after segmentation. The sections are divided...

Numerical Bending Analysis of Bridges
Related numerical procedures are described for the elastic analysis of arches by large deflection, second order and classical theories. These procedures essentially consist of simple and...

Load Capacity of Concrete Bridge Decks
The behavior of two reduced-scale concrete bridge decks subjected to simulated wheel loads was evaluated in a series of tests. One slab was reinforced in accordance with AASHTO requirements;...

Effect of Abandoned Roles on Capacity of Wedge Bolts
Seventy, 5/8-in. diameter wedge anchors were tested in direct pull-out to determine the effect of various configurations of unused holes and different treatments of these holes on pull-out...

Concrete Members Under Combined Torsion and Shear
The behaviour of reinforced concrete members subjected to combined torsion and shear is studied in this investigation. An analysis is developed for predicting the deformations at all levels...

Application of Fracture Mechanics to Concrete Structures
Material properties (heterogeneity and non-linearity) and disturbing phenomena (slow crack growth and microcracking) cause several research-workers to be pessimistic about the applicability...

 

 

 

 

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