Stiffness of Reinforced Concrete Plates
A general formulation for the in-plane and flexural stiffnesses of isotropically and nonisotropically reinforced concrete plates is presented. The stiffness of plates is related quantitatively...

Absolute Orientation of Photogrammetric Model
An iterative approach by linearized equations is employed to tackle the problem of absolute orientation. As the space model is similar to the photographed object, the scale determination...

Onset of Instability of Power-Law Fluid in Couette Flow
The critical Reynolds numbers at the onset of instability of a Newtonian and a power-law fluid, respectively, in the annulus between two coaxial cylinders, with the inner cylinder rotating...

Structure-Ground Interaction in Earthquakes
A method of analysis is presented for determining elastic structure-ground interaction effects of single-story structures under earthquake loads. The method derives an equivalent SDF model...

Radial Flow between Porous and Solid Disks
In preparation for an experimental investigation for the case in which the solid disk rotates while the porous disk remains stationary, theoretical calculations similar to Dorfman's...

Vibrator for Soil Testing
Herein, a two degree-of-freedom mechanical vibrator is proposed which is capable of generating sufficient forces at low frequencies without requiring a change of rotating weights, and...

Properties of Circulation in Stratified Lakes
An approximate method is presented to display some features of wind-driven circulation in a stratified lake. Rotation of the earth is included, but the effects of bottom topography and...

Optical Current Meter Use in Southern California
The optical current meter is a stroboscopic device with which an operator may visually follow and gage the velocity of particles moving on the water surface. From early prototypes the...

Collapse Load Analysis using Linear Programming
A kinematic approach to the collapse load analysis of plane structures is presented. Beginning with the inelastic rotation parameters and external work constants for a readily identifiable...

Dynamic Analysis of Multibay Multistory Frames
A computer program has been developed to analyze steel frames with or without shear walls which are subjected either to blast loads or to earthquake motions. Equivalent rotational springs...

Sliding-Rocking Vibration of Body on Elastic Medium
The dynamic response in coupled horizontal translation and rocking rotation of a rigid mass with circular base attached to the top of a homogeneous, isotropic, linearly elastic half-space...

Behavior of Laterally Loaded Piles: I-Single Piles
An analysis is presented for the horizontal displacement and rotation of a vertical pile subjected to lateral loading and moment, and situated in an ideal elastic mass. Influence factors...

Behavior of Laterally Loaded Piles: II-Pile Groups
An elastic analysis is presented for the horizontal displacement and rotation of a laterally loaded pile group and the distribution of horizontal forces within the group. The interaction...

Wall Effect on a Sphere in a Rotating Viscous Fluid
Experiments were carried out to study the wall effect on the slow motion of a sphere along the axis of a rotating cylinder of viscous liquid. In comparison to Stokes flow of a sphere along...

Effect of Helix Angle on Flow in Corrugated Pipes
New measurements of the Darcy friction factor in helical corrugated pipes are combined with earlier measurements to show general trends. These indicate that for a given pipe diameter,...

Barge-Coal Handling at A. S. King Generating Plant
Generating plant fuel demands and climatic factors required unusually large barge-coal unloading rates. Selection of unloading equipment was also influenced substantially by considerations...

Spandrel-Slab Interaction
The twisting moments in a spandrel and the bending moments in a slab, butting into it and uniformly loaded, are relaxed by the rotation and the horizontal and vertical displacements of...

Free Vibration of Two-Dimensional Frameworks
A set of three partial difference equations is derived which describes exactly the in-plane free vibrational motion of the joints of a regular, orthogonal, two-dimensional framework having...

Torsionally Stiff Columns under Eccentric Loads
A computer program was developed to predict the strength of hollow rectangular tubular columns with ends pinned and free to rotate in any direction for various load eccentricities with...

Vibrations of Timoshenko Beams and Frameworks
A general matrix formulation suitable for a use of the digital computer is presented for dynamic analysis of frameworks composed of prismatic members. The dynamic stiffness coefficients...

 

 

 

 

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