Uniform Element Modeling of Tapered Frame Members
Prismatic members of structural frameworks are conventionally analysed by using a simplified model supplied by the engineering beam theory. The paper considers the possibility of extending that model to...

Improved Mobility for Elderly and Handicapped Persons
The mobility of elderly and handicapped persons can be improved in an economical manner by using existing resources more efficiently. Techniques such as coordination of social agency transportatiion and...

Swell of Wyoming Montmorillonite and Sand Mixtures
Eight blends of silica sand and Wyoming montmorillonite clay (volclay) at varying proportions by weight were tested at three different temperatures (24°C, 38°C, and 66°C) to investigate their swell characteristics....

Performance of Cable Trusses under Static Loads
Tensioned cable structures are becoming increasingly popular for covering large column free areas. Among the various forms of cable roof systems used, the truss form is the most popular because of its...

Design of Filters for Clay Cores of Dams
The clay core of the Balderhead Dam Suffered cracking and internal erosion in 1967. Segregation of the eroded debris was observed and the filter failed to retain the finer particles that reached it. This...

Laterally Loaded Pile Behavior
An analysis of laterally loaded piles is presented in which the pile is treated as an elastic beam supported on non-linear, shear coupled, horizontal springs. The edge forces which act along the pile length...

Design of Pedestrian Space in Airport Terminals
A method to determine the required width of corriders and size of passenger staging areas in airport terminals is presented. It introduces two novel elements into the planning process for terminals. First,...

Des Moines Skywalk System
A method is proposed for estimating pedestrian traffic on a proposed skywalk system in Des Moines, Iowa. Factors that influence usage are identified. Two mathematical models are presented to predict savings...

Lapped Tensile Reinforcement Splices
The bond action between concrete and deformed bars in lap splices is analysed in its different working stages. The principal tensile stress generated by bond stress cracks the concrete after which bond...

Equivalent Hydraulic Pipe for Parallel Pipes
Methods are defined for reducing two or more parallel pipes to a single hydraulically equivalent pipe for analysis using the Darcy-Weisbach equation that allows the friction factor to depend upon the flow...

Flood Probability Estimation
A procedure is developed for estimating design floods in situations where data are insufficient for a conventional frequency analysis. It involves the use of a compound distribution which is a weighted...

A Moral Appraisal of Cost-Benefit Analysis
A cost-benefit analysis is one in which the engineer weighs the possible positive consequences, or benefits, of a given action against the negative consequences, or costs, of that same action. An ethical...

If You're an Engineer, You're Probably a Utilitarian
The nature of utilitarianism is described and discussed in regard to engineers' preference of utilitarianism over other ethical theories. The advantages and disadvantages of this attitude are discussed....

The Engineer as Moral Agent
The ways in which engineers fail to act as moral agents are examined. Discussions and studies show that the self-image frequently found among engineers is that of a rational calculator. Although engineers...

Conflicts of Roles in Engineering Ethics
An examination of how ethical dilemmas are created is presented and applied to engineering practice. Cases which are most typical of such conflicts are whistleblowing cases in which the engineer is torn...

Economic Evaluation of Development Projects on Transportation ROW
The development and application of a computer model for testing the feasibility of multiple agency development projects at proposed transit stations is described. Given a development strategy, the model...

Residual Stresses and Strains and Fatigue Cracking
A mechano-lattice analysis is used for simulating one million traverses of a wheel load along an asphaltic pavement. It is shown in the example presented that the accumulation of residual stresses and...

Application of Screw Plate to Stiff Clays
The screw plate load test application to stiff clays has been further developed to provide more accurate results with greater efficiency in testing. From the results of this test direct calculation may...

Tapered Inlet Design Using Specific Energy Curves
Design charts to simplify the hydraulic design of tapered inlet culverts for both rectangular and circular sections are presented. The use of these design charts greatly reduces the opportunity for error...

In-Plane Stability of Parabolic Arches
Studies are reported of the response to uniformly distributed loading of parabolic arches of rise equal to a fourth of the span. Base conditions are both fixed and pinned. The distributed loading varies...

 

 

 

 

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