Earthquake-Induced Deformations of Soft Clay Slopes
An existing one-dimensional, non-linear, degrading stress-strain soil model for horizontal sites is extended to mildly sloping sites and a practical procedure to analyze the earthquake-induced...

New Method for Tidal Current Computation
The computation of two-dimensional tidal currents using the Alternating Direction Implicit Method (ADI) can be subject to numerical attenuation, parasitic oscillations, and poor reproduction...

Lateral Stability of I-Beams with Partial Support
The lateral torsional buckling behavior of I beams with tension flange restraint is described. Tension flange restraint occurs frequently in continuous beams and indeterminate structures....

Scrubbing Odors from Wastewater Treatment
A pilot scrubber system using sodium hypochlorite and sodium hydroxide solutions was tested for its effectiveness and the optimal operation conditions when used for removing odors from...

Shearing Stress due to Prestress in Variable Depth Beam
General formulas to estimate shearing stress in prestressed concrete beams due to prestress force are given. These equations also can be used to calculate dead load and live load moment...

Effluent in Trickle Irrigation of Cotton in Arid Zones
A trickle system was installed in a cotton field to study the effects of effluent quality, emitter discharge and irrigation regime on the yield of cotton. The experiments were conducted...

Optimum Design of Reinforced Concrete Water Tanks
The conventional method of designing water tanks is irrational and leads to relatively thick walls with a substantial amount of reinforcement. Application of the limit state method results...

Application of Cost-Flow Forecasting Models
Cost-flow models are formulated for forecasting the cumulative cost-flow in housing and public buildings, as a function of total cost and construction period. This permits to estimate...

Graphical Method of Optimization: A Short Cut
Although optimization problems are usually solved by computer, argument is presented that simpler cases can be handled by non-computer methods. A new, graphical method based on triangular...

Hysteresis Models for Reinforced Concrete
Nonlinear dynamic response of a simple reinforced concrete specimen is studied using five different hysteresis models: the Takeda, elasto-plastic, bilinear, Clough, and the Q-hyst model....

Beam Idealization
For any given bemm with varying cross-section and material properties, it is easy to evaluate a number of parameters Qi and Di,...

Probability Based Load Criteria: Assessment of Current Design Practice
This is the first of two papers that describe a study conducted to develop probability-based load factors and load combinations suitable for use with the loads specified in American National...

Bayesian Approach to Prototype Testing
The strength of series-produced structures is uncertain because of modelling error and material parameter uncertainty. By testing of prototypes, information on both uncertainties is obtained....

Hydrodynamic Effects in Earthquake Response of Embankment Dams
Utilizing a recently developed analytical procedure, the significance of hydrodynamic effects in the earthquake response of embankment dams is evaluated. Effects of dam-fluid interaction,...

Models of Landfill Leaching: Moisture Flow and Inorganic Strength
Mathematical models are applied to the movement and inorganic contamination of moisture in sanitary landfills situated above the water table. The models are based on simple well-mixed...

Total Suspended Solids in Highway Runoff in Washington State
During the first year of full-time operation of ten highway runoff monitoring sites in the State of Washington, a total of 241 storms were sampled with a composite sampling system developed...

Highway Fiscal and Program Management for the 1980s
The 1980s are a time of rapid change to most transportation agencies in the country—change in a funding base, which has remained essentially stable for the last 60 years, and change in...

Water Yield Estimation in Western United States
The mean annual water yield of a watershed is used in the planning, design, and management of some watershed projects, especially those involving irrigation. A statistical analysis of...

Dilution Analysis for Undirectional Diffusers
The paper discusses the mixing mechanics of submerged, multi-port diffusers used to discharge heated water from steam-electric power plants into shallow receiving waters. An analysis for...

Managerial Decisions Under Inflation
The problems of managerial decision making under inflation are discussed, and some solutions are offered. The risk of estimating under inflation is explained, and a method to improve the...

 

 

 

 

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