Channel Siltation Determined with Side-Scan Radar
Of the new electronic means to measure water depth, side-scan sonar is unusual in that it gives not just a cross-section of the bottom but a semi-3-D picture of the bottom surface. Experienced...

Torsional Vibrations of Pile Foundations
Figures are presented to facilitate this application and the response of various representative footings to torsional excitation is also shown. For a pile group the contribution of pile...

Principles of Graphical Gradually Varied Flow Model
Any gradually varied flow computation requires the solution of the energy and continuity equations. To this end, many techniques are available. For prismatic channels, the Direct Step...

Finite Element Approach to Waves Due to Landslides
The finite element method based on the weighted residuals principle is used for the description of the generation and the unidirectional propagation of waves in a channel due to the temporal...

Transverse Mixing in Partially Stratified Flow
The paper reports the results of a laboratory study on the rate of transverse mixing in oscillatory estuary-type flow with density gradients typical of those found in real estuaries. Two...

Prediction of Hysteresis of Reinforced Concrete Members
The endochronic theory for inelasticity and failure, previously established, is used to predict the response of reinforced concrete beams in cyclic bending at large strains. Cross sections...

Complex Infinite Beams on Elastic Foundation
Simple infinite beams on an elastic foundation have presented few problems, in fact they are usually easier to solve than beams of finite length. For some time it has been possible to...

Columns Braced in Nonprincipal Directions
This note is concerned with the flexural buckling of a prismatic column having a single brace not parallel to either of the principal axes of the column cross section. One way is which...

Rationalizations of Sections Properties Tables
Round-off to nearest (and usually larger) available standard cross section involves a component of waste in design that, together with other relevant costs, should be minimum. Commonly...

Torsion and Flexure of Closed Thin-Walled Beams
In Ref. 2, a method of determining the stress and deformation of curved thin-walled beams having general loading and geometry was presented. This method considered the effects of warping...

Buckling of Axially Loaded Open Shells
This paper describes an experimental investigation of the buckling behavior of axially-loaded thin open cylindrical shells. The results of experiments with 36 aluminum shell specimens...

Earthwork Volumes by Contour Method
A new method for the computation of earthwork volumes in massive hillside grading projects is developed which increases the accuracy and vastly reduces the time and cost of calculations....

Longitudinal Dispersion Coefficients for Streams
A simplified method is presented to predict the longitudinal dispersion coefficient for natural streams. A dimensionless parameter, β, which is the function of the shape of the channel...

End Effects in Long Curved Beam
Eigenfunction solutions of the biharmonic equation have been used to investigate the Saint-Venant boundary region in a long curved beam of rectangular cross section. The participation...

Ethics: Wisconsin Section Sparks Timely Discussion
Eight case studies of ethical questions were debated in an audience participation panel format, at the 1975 Wisconsin Section ASCE Annual Meeting. The program was judged successful for...

Hydraulic Representation of Flow Cross Sections
Herein, the writers will show that the conveyance of the channel section calculated by multiple section representations is never less than that by a single section representation. Also,...

Experimental Investigation of Flow Over Side Weirs
Observations at numerous cross sections in a side weir channel showed that the total energy of flow decreases substantially along the channel, contrary to the assumption that has frequently...

Hydraulics of Surface Buoyant Jet
The spreading of a jet discharge horizontally at the surface of a quiescent receiving water of slightly larger density is investigated, assuming that the bulk Richardson number is moderate....

Axial Hysteretic Behavior of Steel Members
A procedure for predicting the force-deformation behavior of axially-loaded members with intermediate slenderness ratios is developed for use in computer-aided inelastic dynamic analyses...

Beam Analog for Plate Elements
A beam-analog to continuously attached elements has been established as a method for the analysis of a continuum. Although the analog grid is composed only of orthogonally connected beams,...

 

 

 

 

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