Factors Affecting the Damping in a Lap Joint
The problem of the geometric and surface factors affecting the interface damping in a lap joint is considered, and leads to suggestions on dimensional arrangements and surface treatments...

Nonlinear Parameters of Vibrating Foundations
A critical review of theories considering vibrating footings on the elastic half-space, and the comparison of their results with the simple damped oscillator show a principal insufficiency...

Vibration Modulus of Normally Consolidated Clay
The resonant-column technique was used to measure the vibration shear modulus of a normally consolidated kaolinite under various anisotropic states of stress. The effects of the deviatoric...

Sheet-Pile Analysis by Distribution Theory
A distribution theory is introduced for the analysis of sheet-pile walls. It is valid for the case of linearly varying soil stiffness modulus. The upper part is assumed to be loaded by...

Stress History Effects on Dynamic Modulus of Clay
Remolded kaolinite and bentonite triaxial specimens were subjected to isotropic consolidation pressures of 10 psi to 100 psi and overconsolidation ratios of 1 through 10. Steady-state...

Contribution to the Analysis of Restraint in Soil
The restraint of power-line pylons, highway posts, and similar cantilever structures fixed in prismatic block foundations presents an interesting problem of combined action of horizontal...

Stresses and Displacements in Nonlinear Soil Media
A method is presented for determining the vertical stresses and displacements in semi-infinite nonlinear soil media under circular loaded areas. The soil is assumed to be incompressible...

Classification and Identification of Shales
Shale has been regarded as a notoriously troublesome and generally undesirable foundation material. However, all shales are not problem shales. A classification distinguishing the problem...

Movements in Pipe Conduits Under Earth Dams
Data from a field study of movements in pipe conduits under earth dams on compressible foundations are presented and analyzed. Based on the analysis, a tentative method for estimating...

Analysis of Embankment Stresses and Deformations
The finite element method is applied to the evaluation of embankment stresses and deformations. Construction sequence plays an important part in the deformations developed in earth embankments,...

Buckling of Soil-Surrounded Tubes
This paper describes a theoretical and experimental investigation of buckling of a tube surrounded by a soil in a circular symmetric configuration. The tube was failed by increasing the...

Sand Stiffness Under Various Triaxial Stresses
In many foundation vibration problems, such as the vibration of machine foundations, the supporting soil is first subjected to static stresses caused by the weight of the installation...

Fracture and Reliability of Filament-Wound Chambers
A comprehensive literature survey showed that the reliability of a filament-wound chamber depends on four primary factors: Materials, environment, fabrication, and time. A detailed investigation...

Stresses in a Uniformly Loaded Two-Layer Circular Plate
An exact solution is derived for the stresses in a uniformly loaded, simply supported circular plate, composed of two dissimilar layers of isotropic, elastic materials. Large errors in...

Flange Local Buckling in Wide-Flange Shapes
A requirement for a steel beam loaded into the inelastic range is that it be able to attain a fully yielded condition without prior local buckling. A beam will buckle locally if its fully...

The Nature of Damping in Sands
The problem of determining soil properties in the dynamic range of loading is discussed. Analytical solutions for two models, closely representing some of the systems that have been used...

Rigid and Stiff Airport Pavement
A logical testing and design approach for rigid airport paving is reported. A reasonable formulation, design, and testing procedure is developed for stiff airport paving or stiff subbase....

Development and Use of the Modpares Device: Report of the Research Council on Pipeline Crossing of Railroad & Highways, Pipeline Division
This report develops the modpares device for measuring the modulus of passive resistance of soil. In an attempt to determine the moduli of passive resistance of a wide range of types of...

Stress-Strain Modulus of Clay in Undrained Shear

Influence Functions for Beams on Elastic Foundations
Equations for beams on elastic foundations are summarized and simplified. Dimensionless influence functions are developed. Analysis of beams is reduced to simple evaluation of one-term...

 

 

 

 

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