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,...

Inelastic Deflections of Beams
Design techniques for determining inelastic deflections of beams made from gradual-yielding materials are investigated. New as well as existing methods are presented and evaluated. Factors...

BED Analogy for Analysis of Box Girders
An analysis for a box girder cell with deformable cross section and flexible interior diaphragms is developed using an analogy to the theory of beams on elastic foundations. The analogy...

Shear Buckling of Unstiffened Hybrid Beams
An investigation of the web buckling strength of hybrid beams was conducted with the specific objective of determining the maximum web slenderness ratio for unstiffened webs to prevent...

Analysis of Box Girders with Diaphragms
Analyses based on thin-walled beam theory are presented for multicell box girders of deformable cross section. The influence of flexible interior diaphragms on stresses arising from deformation...

Inelastic H-Columns Under Biaxial Bending
A numerical procedure is presented for determining the displacements of an isolated H-column loaded eccentrically with respect to both principal axes of the end cross sections. The procedure...

Simplifications in Minimal Design of Frames
A new method of minimum volume design of frames with continuously varying cross-sectional area is introduced. It relies exclusively on statical considerations and does not involve kinematical...

Uncased Pipeline Crossings of Railroads and Highways

Control Point in a Lateral Spillway Channel
To calculate the water surface profile in a lateral spillway channel, it is necessary to determine a control point. The control may be located downstream, with subcritical flow everywhere...

Profiles of the Round Turbulent Jet in A Cross Flow
The shape of a jet issuing normal to a uniform cross wind has been studied experimentally for a large range of jet-to-wind velocity ratios, R,...

The Mechanics of Dispersion in Natural Streams
A method is given for predicting longitudinal dispersion coefficients in natural streams. The analysis is based on recognition that transverse velocity gradients (rather than the previously...

Pipeline Failures Guide Highway Crossing Practice
A Federal Power Commission survey and report on failures of natural gas transmission pipelines, and their causes is discussed. Its findings on safety regulations of the States and proposed...

Arch Dam Layout Facilitated By Use of Computer
Computer application is used to simplify the layout of a variable thickness arch dam of double curvature. With prescribed, though flexible, relationships given for the angles subtended,...

Shallow Water Waves in Canals of Variable Section
New theoretical solutions are derived for shallow water small amplitude waves in rectangular cross-sectional channels that have their depth and their width varying in the form of a polynomial....

Earthquake Response of Earth Dams
The widely used shear wedge approach for earthquake analysis of earth dams is compared with a two-dimensional dynamic stress analysis technique which uses the finite element concept. Natural...

Stability of a Bar Under Eccentric Follower Force
A uniform cantilevered bar subjected at the free end to an eccentric, compressive follower force is considered. It is shown that, for cross sections having two axes of symmetry and vanishing...

Effects of Cold-Forming on Light-Gage Steel Members
Cold-forming causes significant changes in the mechanical properties of certain light-gage steel members. The average yield strength in a cold-formed section may be as much as 70% larger...

Model for Compression of Elastic-Plastic Cylinders
The post-buckling behavior of a circular thin-walled cylinder under axial load is analyzed with the aid of a geometric model which takes into account the undistorted ends. The analysis,...

 

 

 

 

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