Seismically Induced Fluid Forces on Elevated Tanks
Seismically induced fluid forces on elevated liquid storage tanks and their supporting systems are evaluated. X-braced as well as pedestal towers are analyzed. The interaction between...

The Microcomputer in C.E. Education: A Survey
What is the state of microcomputers in civil engineering education? Which microcomputers are being used? Are program developers willing to exchange programs? The survey conducted by the...

Response of Semi-Submersibles in Ice Environment
The dynamic response of moored semi-submersibles to forces imposed on them by ice floes and bergy-bit/growler impacts is studied. Ice forces on the vertical columns of the semi-submersibles...

Heavy Oil Mining—An Overview
Heavy oil mining is a promising technology that may increase ultimate oil recovery from existing reservoirs from 35–40% to 90% of the original oil in place. If successful, mining for heavy...

Data Acquisition Systems: Do It Yourself
Elementary theory and practical advice are combined in this paper to enable anyone to construct their own computerized data acquisition system from commercially available components. The...

Axial, Bending and Torsional Behavior of Pipelines
Axial pull-out, bending and torque-rotation stiffness and capacity data and equations for underground torsional behavior are provided for utility pipelines using rubber gasket joints....

Nonlinear Behavior of Ductile Iron Pipeline Joints
Experiments were performed on 4 in. (100 mm), 6 in. (150 mm), 8 in. (200 mm), and 10 in. (250 mm) pipelines with rubber gasket joints to determine their structural and stiffness characteristics...

Introduction to Relational Databases Using Structural Engineering Examples
An introduction to the basic issues of database management and to the concepts of the relational database model is presented. Structural engineering examples are used to describe the principal...

Changes in Strength of Silt Due to Freeze-Thaw
A laboratory test program was conducted to determine the effect of water content on strength of a Manchester silt subjected to freeze-thaw. Samples were prepared at 10% and 20% moisture...

Ground Motion of Mississippi Valley Earthquakes
Three methods are used to estimate the dependence of strong ground motion on epicentral distance and magnitude for Mississippi Valley earthquakes. The first utilizes earthquake intensity...

Mining Geothermal Energy From Hot Dry Rock
Geothermal energy is commonly considered to be available only in areas characterized by hot springs and geysers. However, the rock of the earth is hot at accessible depths everywhere,...

Bridge Dynamic Tests: Implications for Seismic Design
A five span, 400 ft (120m) long, reinforced concrete box girder bridge supported on single column piers, which are pile founded, was subjected to extensive dynamic tests. The pullback...

Behavior of Unanchored Oil Storage Tanks: Imperial Valley Earthquake
The performance of ground-based liquid storage tanks during past earthquakes revealed a more complex behavior than was implied by design assumptions. However, the analysis of damage was...

LISP-A CAD System Programming Language
It is suggested that the LISP programming language has many advantages and few disadvantages for use in developing complex engineering application programs. This paper attempts to explore...

Design, Programming and Maintenance of HSPF
The Hydrological Simulation Program - FORTRAN (HSPF) is a comprehensive model for simulation of watershed hydrology and water quality, sponsored by the EPA. HSPF evolved from several earlier...

Intermountain Power Project Seismic Criteria
Four 750 MWe coal-fueled electric generation units of the Intermountain Power Project are being constructed in an earthquake-prone area of Utah (UBC Zone 3). This paper reviews the seismic...

Reliability Analysis of Lifeline Systems
Considering that most of the lifeline systems are composed of a few kinds of many structures, the reliability of the system is represented by the use of two functions, one pertaining to...

Niagara River Ice Boom: Effects on Environment
Two approaches are described for examining the possible effect of an ice boom on the air and water temperatures. The first approach utilizes a mathematical model for the ice dissipation...

Simulation and Analysis of Construction Operations
This paper summarizes a recent research project which brings together work from four diverse fields: (1) Time-lapse photographic documentation of unit operations such as those found on...

Better Government—Can the Young Engineer Help Make it Happen?
With increasing repetition, decisions concerning complex engineering issues are being made along purely political lines. To counteract this trend, the engineer must actively become involved...

 

 

 

 

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