Optimization Method for Railroad Curve Alinement
Realignment of existing railroad curves is cast in terms of a quadratic optimization problem and a method of minimizing the objective function is developed. Geometry relating track curvature and movement...

Intra-CBD Secondary Travel Patterns of Downtown Workers
Previous Downtown People Mover (DPM) feasibility studies have shown that the majority of the average daily DPM trips will be made by downtown workers during their travel to and from the downtown (Primary...

External Pressure and Sectional Behavior of Fabricated Tubes
The effect of external hydrostatic pressure on the cross sectional behavior of fabricated tubular columns is studied analytically using tangent stiffness approach. The moment-curvature behavior of a short...

Cracks in Concrete Subject to Shear
Shear tests on push-off specimens are carried out in order to study the strength and deformation behaviour of normal and lightweight concrete. Two types of specimen are used, one with embedded reinforcing...

Bridge Rehabilitation: An Alternate Approach
The presentation of rehabilitation plans for bridge structures requires engineering analyses of various strengthening schemes. The use of scale models as an alternate approach to conceiving and evaluating...

Tests of Composite Beams with Web Openings
An experimental investigation to study composite beams with rectangular web openings is presented. Six composite beams and one steel beam were tested. W14 × 34, W18 × 45 and W18 × 46 sections were used....

Fatigue Reliability: Variable Amplitude Loading
Models which designers use to predict fatigue under variable amplitude and random loading are summarized. Basic terminology associated with random process theory is presented. Models for computing fatigue...

Trends in Engineer Registration, Sunset Review: How to survive?
Thirty-one states have legislated periodic review of licensing and regulatory functions, including professional registration or licensure of engineers, land surveyors, and related professionals, to determine...

Regulation of Engineers in California
State-administered certification programs for the engineering profession are unjustified and should be eliminated. The reasons for this conclusion have nothing to do with the peculiarities of any particular...

Sand Liquefaction: Inelastic Effective Stress Model
An effective stress numerical model for soil liquefaction, which provides interaction between shearing deformation and transient pore-water pressure development, is presented. Some attractive features...

Welded and Bolted Beam-to-Column Connections
For many years research on welded and bolted beam-to-column connections has been carried out in The Netherlands, with particular emphasis on those connections which cannot transmit the full plastic moment....

Pressure Distribution Design for Septic Tank Systems
Pressure distribution of septic tank effluent in subsurface soil absorption systems is gaining in popularity. This method of effluent distribution has the advantage over other methods of providing dosing...

Creep of Pipes Under Axial Force and Twisting Moment
The load-deformational behavior of twisting of pipes in the presence of axial force is examined. Based on the small deformation theory, charts and curves, which relate the twisting moment, axial force,...

Large Deflections of Beams with Combined Loads
Closed-form solutions are presented for the problem of large deflection of a cantilever beam with a couple and a concentrated load acting simultaneously at the free end. Dimensionless charts are provided...

Creep of Pipes Under Axial Force and Bending Moment
The load-deformational behaviour of a thin-walled circular cylinder in the presence of axial force is studied. Based on the small deformation theory, an exact analysis is presented for the bending of the...

Stresses on Rapidly Sheared Fluid-Solid Mixtures
Constitutive equations were derived describing the stress in a rapidly sheared mixture of granular cohesionless solids and a Newtonian fluid. These equations are considered to describe the flow of mixtures...

Finite Element Method for Interface Problems
A method for incorporating interface discontinuities in a finite element analysis of discontinuous media is presented. For computational purposes the procedure is implemented into the nonlinear structural...

Short Line Change Estimates Neat Oarai, Japan
To estimate the shoreline changes near the Port of Oarai when the groin was built, the field observations were done and the characteristics of the coast were investigated. A present shoreline in nature...

Ultimate Strength of Gapped Joints in RHS Trusses
A theoretical and empirical analysis is presented for the ultimate static strength of gapped joints in welded Rectangular Hollow Section trusses having one compression bracing member and one tension bracing...

Nature of Wave Attenuation in Open Channel Flow
The identification of the term or group of terms which will cause a free-surface flow to dissipate is investigated. It is shown that wave attenuation is caused by the interaction of the kinematic term...

 

 

 

 

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