Stayed Column with Initial Imperfection
The effect of an initial out-of-straightness on the buckling strength of a single-crossarm stayed column is investigated. A geometrical study of the stayed column is used to determine...

Nonlinear Analysis of R/C Structures in Practice
This paper addresses some of the questions facing the engineer who is charged with assessing the safety of concrete structures for which conventional linear analysis is deemed inadequate....

Real Time Simulation of Conductivity in River-Lake Systems
Conductivity is modeled in real time in a natural water system using the finite section method. Dispersion coefficients are estimated using methods available in the literature. Calibration...

One-Dimensional Dynamic Ground Response Analyses
The earthquake response analyses of six horizontally layered sites have been performed by means of the equivalent linear method of analysis and two non-linear methods using the method...

Unsteady Flow in China
This article summarizes some results of research on unsteady flow problems encountered in China. These results are in general little known to the world outside of China. The report is...

Slipforming of Reinforced Concrete Shield Building
The unique design and construction features of slipforming the heavily reinforced concrete cylindrical shield walls at the Satsop nuclear plant site are presented. It proved that, with...

Volume-Accuracy Relationship in Soil Moisture Sampling
The number of soil samples required to achieve a given level of accuracy of the mean value is directly proportional to the variance of the samples. Analysis of a set of soil samples of...

Application of Penman Equation Wind Function
The Penman equation for computing evapotranspiration is frequently applied as the basis of irrigation system design. It has seen widespread application when sufficient data are available...

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...

Nitrification Rates in Activated Sludge
By using biokinetic and stoichiometric equations it was possible to theoretically develop insight into factors that affect nitrification rate in activated sludge systems. From this study...

Stability of Slopes by Method of Characteristics
The method of characteristics with some simplifying assumptions is made applicable for analyzing a given straight slope. By assuming that the mobilized shear strength varies with depth,...

Simplified Testing of Hydrologic Regression Regions
The Wilsoxon Signed Ranks Test is suggested to test the statistical significance of homogenous hydrologic regions defined by subjectively drawing regional boundaries around regression...

Separation Angle Effect on Vortex Shedding Frequency
Vortex shedding frequencies were measured for a number of two-dimensional bluff bodies whose boundary layers separation angles ranged from 0°-90° to the oncoming flow. Strouhal numbers...

Computer Analysis of Settling Test Data
A method of fitting a simple approximating function to quiescent settling test data is given that can serve for either discrete or flocculant settling. The method can be used with the...

Prestandard Programs and United States System of Standards and Codes
A concise description of the United States system of codes and standards is given, with the objective of presenting highlights of the system of interest to the civil engineer and the introduction...

On Zero-Inertia and Kinematic Waves
Small perturbation analysis of the linearized open-channel flow equations leads to the conclusion that zero-inertia waves propagate in the downstream direction only with a speed equal...

Defects in Public Building Construction
From 1978 - 1980, The Special Commission concerning State and County Buildings in the Commonwealth of Massachusetts made a thorough investigation of maladministration and corruption in...

Separation of Hydraulic Flow over Topography
The hydraulic flow of either a single layer or multiple layers of fluid over a topographic feature is frequently employed in many areas of civil engineering, meteorology, and oceanography....

Contract Arrangements in the Third World
Standard contract provisions and communications may not be the most appropriate for all construction work in third world countries. The main criteria for appropriateness reflect, firstly,...

Groundwater Management in the Southeast
State groundwater management programs in the Southeast are reviewed and critiqued. Strengths and weaknesses of different programs are examined with attention focused on legal and administrative...

 

 

 

 

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