Damping Effect of Floating Breakwater
The results of experimental studies are presented concerning the mechanism of attenuation of waves and the damping effect of the floating breakwater to which the system of phase difference...

Circular and Logarithmic Spiral Slip Surfaces
A method of analysis of embankment stability is described which applies equally to slip surfaces having a cross section either in the form of a circular arc or a logarithmic spiral arc....

Aeroelastic Galloping of Prismatic Bodies
Galloping oscillations of long prismatic bodies with aerodynamically unstable cross sections in the direction normal to that of the acting steady wind are analyzed. Principally, the steady...

Elastic Buckling in Two-Component Columns
The initial buckling loads of two-component columns with four different end conditions are investigated. The two components of a column are assumed to be rigidly connected with one component...

Base Moment for a Class of Linear Systems
Contributions of the second and higher modes to the overturning moment at the base of any classical linear system whose fundamental mode is given by a straight line are shown to vanish...

Approximate Yield Surface Equations
A procedure is presented for deriving approximate lower bound yield surface equations in terms of axial force, torsional moment and two flexural moments. Yield surface equations are tabulated...

Elasto-Plastic Deflection of Tubular Beams
A method of analysis is presented along with charts and tables for simplified computations of elasto-plastic deflections of beams of tubular cross sections at different stages of yield...

Biaxial Moment Thrust Curvature Relations
A method for computing moment-thrust-curvature relations for reinforced concrete column sections in biaxial bending is described. The cross section is partitioned by a rectangular grid...

Rotation Capacity of Beams Under Moment Gradient
This investigation attempts to relate the flange slenderness ratio to the rotation capacity of steel wide-flange beams subjected to a moment gradient. The steel used was CSA G 40.12, a...

Nonuniform Torsion of Composite Beams
The general expressions governing the behavior of a beam of composite, open, thin-walled cross section subjected to nonuniform torsion are developed. These expressions are rewritten in...

Tangent Stiffness Matrix for Space Frame Members
This presentation is concerned with the derivation of a 12 by 12 tangent stiffness matrix for a space frame member with constant cross-section. At first, the member end forces are expressed...

Box Girder Model Studies
An experimental study of the stresses in a box girder subjected to concentric and torsional loading configurations is described. Tests were conducted on a plexiglas model to examine the...

Torsion of Thick Walled Rectangular Bars
This note presents the development of an approximate formula for the calculation of the maximum torsional sharing stress in bars with hollow rectangular cross sections....

Wave Transformation in an Open Channel Transition
Theoretical development and an experimental investigation are considered of the transformation of water-wave characteristics in the reflection transmission processes through a channel...

Dominant Discharges at Platte-Missouri Confluence
Principal objectives of river regulation are (1) to secure a stable alinement; (2) to develop a cross section adequate for flood flows; and (3) to maintain a better and deeper channel...

On the Accuracy of Timoshenko's Beam Theory
The deflection and rotation which appear in Timoshenko's beam theory may be defined either (a) in terms of the deflection and rotation of the centroidal element of a cross-section...

Added Mass of Equilateral-Triangular Cylinders
The added mass of a moving cylindrical body due to the acceleration of the surrounding fluid may be evaluated theoretically by determining the kinetic energy of the fluid surrounding the...

Elastic Stability of Tapered Beam-Columns
The behavior of axially loaded columns and beam-columns of uniform cross sections has been extensively investigated in both the elastic and inelastic ranges. In various practical situations,...

Lateral Stability of Welded Light Trusses
An analysis based on the work energy principle is presented for the elastic lateral stability of light continuous chord trusses supported laterally at equidistant points along both chords....

Curved Beam Stiffness Coefficients
A three-dimensional stiffness coefficient matrix for constant cross section curved beams is derived. This matrix relates the beam end point rotations and translations to the internal moments,...

 

 

 

 

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