Considerations for Pipeline Crossings of Rivers
The criteria and procedures deemed necessary in the preparation of safe and economical pipeline river and stream crossing design are presented. Background data on the effect of industry...

Soil-Structural Interaction and Concrete Tie Design
Experimental data and theoretical argument are presented to show that the optimum length for a concrete tie of uniform cross section is 1.67 to 1.71 times the distance between the two...

Circumferential Diffusion in Pipe Mixing
A method is presented and used for evaluating an average circumferential mass diffusivity for steady, uniform, turbulent pipe flow. The method is based on the analytical solution of the...

Direct Solution to Problems of Open Channel Transitions
Existing methods of solving problems of open channel transitions involve trials-and-error solution of higher degree equations and no direct solutions are available in technical literature....

Three-Dimensional Open Channel Flow
An open channel flow is usually three-dimensional consisting of the primary and secondary flows. The primary flow is defined herein as the flow component in the longitudinal direction...

Forced Plumes in a Stratified Reservoir
A comprehensive two or three-dimensional model for a forced plume is described in which there are no restrictions necessary in the choice of cross-sectional velocity or density profiles,...

Effect of Channel Meanders on Flood Stage in Valley
Results of this study indicate that for a meandering channel in a valley there is an interaction between the channel flow and valley flow. The nature of the interaction varies with stage,...

Experiments on Surface Buoyant Jet
An experimental investigation of a surface buoyant jet is presented. The densimetric Froude number and the Reynolds number of the discharge channel were 3.6 and 33,000, respectively. Longitudinal...

Inelastic Section Response by Tangent Stiffness

Cross-Sectional Imperfections and Column Stability
A method to determine the elastic buckling strength of imperfect closed polygon columns has been developed. A set of eight equilibrium equations was developed but was reduced to a set...

Large Displacement Inelastic Analysis of Beam-Columns
The formulation of a variational virtual work equation for describing internal work for an arbitrary thin-walled beam of open cross section subjected to large displacements is reviewed....

Lower Bound Limit Design of Concrete Structures
A lower bound method has been developed for the limit design of indeterminate concrete structures subjected to torsion. In this method, a stress resultant field that satisfied all the...

Inelastic Response of Restrained Steel Tubes
Eighteen specimens made from 1 in. (25-mm) square tubes with welded gusset plates were tested under repeated axial loading. Length of the specimens varied from 20 in. to 54 in. (510mm...

Effect of Side Slopes on Concrete Bearing Strength
The problem of large forces acting over limited contact areas of concrete is one of frequent occurrence in engineering deign. In three earlier papers, the effect of several important variables...

Axial Hysteresis Behavior with End Restraints
Parametric study of axially loaded steel members with symmetrical rotational end springs (connections) was performed. The main parameters are the connection flexural strength, the effective...

Hydrodynamic Pressure in Semicylindrical Reservoir
Solutions are presented for modal analysis of hydrodynamic pressures generated by the three translational seismic components — longitudinal, vertical, and transverse — on a dam limiting...

Static Behavior of Wire Rope
A method for determing the static response of a wire rope with a cross section consisting of wire strands has been developed. The method is an extension of previous work and requires the...

Plastic Analysis under Combined Stresses
Based on matrix algebra, decomposition, and linear programming techniques, a general mathematical model is developed for rigid-plastic analysis of discrete elements and structures under...

Effect of Sediment Load on Stable Sand Canal Dimensions
An experimental study was taken up by the writers with the object of providing a clear picture of the effect of sediment load on the dimensions of stable canals. These experiments were...

Fault Movement Effects on Buried Oil Pipeline
In earthquake zones pipeline crossings of major active faults are often unavoidable, and movements of these faults can have serious consequences for the pipeline. The ability of a large...

 

 

 

 

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