Prestress and Cracking Problems in Concrete Structural Components of an Elevated Rail Transit Guideway System
In 1983 the Department of Transportation evaluated the quality of construction of selected structural components on the Dade County Transportation Administration METRORAIL elevated guideways....
Investigation of Catastrophic Failure of a Premium-Alloy Railroad Rail
In November 1983 an Amtrak train derailed at a speed of 72 mph (115 kph) at Woodlawn, Texas (in the vicinity of Marshall, Texas), resulting in four fatalities and twenty-four serious injuries....
Damage Tolerance Assessment of Commercial Airframes
The regulatory authorities now require that commercial transport aircraft structural design be based on a damage tolerance philosophy. A brief history of the development of the regulations...
Continuum Modeling of Periodic Truss Structures
Procedures for deriving equivalent stiffnesses for an extended Timoshenko beam used to represent truss beams are presented. A typical substructure of a truss is used to calculate these...
Continuum Modeling of Discrete Structures with Geometric Nonlinearities
The modeling of geometrically non-linear discrete structures by an equivalent continuum is presented. The discrete-continuum analogy is developed by first isolating a unit cell of the...
General Continuum Models for Discrete Structures
New knowledge is presented about the structural behavior of a variety of large repetitive lattice configurations of the type appropriate for utilization in cosmic space. Focus is placed...
Use of Computer Graphics in the Analysis of Large Space Structures
This paper illustrates how interactive computer graphics can provide a useful tool in setting up analytical models of structural latticeworks comprised of large numbers of degrees of freedom...
Damage Detection in Periodic Structures
Nondestructive damage detection in periodic structures using continuum analogues of the discrete structure is studied. Algebraic equations relating changes in eigenfrequencies to the fractional...
Uplift Behavior of Shallow Soil Anchors?An Overview
An overview is presented of the static uplift (tensile) behavior of shallow anchors used for foundations in soil. Basic anchor types are described, and their general installation and behavioral...
Uplift Capacity of Shallow Offshore Foundations
Soil failure under upward loading is investigated by experimental laboratory tests. The problem of uplift capacity is considered in terms of effective stresses in soil skeleton and pore...
New Cables for Old
In an eingineering first, the main suspension cables will be replaced on New York City's Williamsburg Bridge without closing it to traffic at any time. According to the design...
Construction Cost Control
The second edition of
Hurricane Alicia
One Year Later
In the pre-dawn hours of August 28, 2983, Hurricane Alicia ripped its way ashore at the western tip of Galveston Island and moved northward to the Greater Houston area. This storm caused...
Environmental Engineering
The purpose of the annual Conference on environmental engineering is to pursue scientific knowledge and promote sound engineering judgement and practice in the solution of environmental...
Composite and Mixed Construction
Steel and reinforced concrete are frequently combined in composite or mixed structural systems. This combination generally results isn greater economy and safety than could be achieved...
Coastal Zone '85
Coastal Zone '85 was a multidisciplinary conference for professionals, interested citizens, and decision-makers to exchange information and views. Coastal zone management...
Project Management Software: What Is in the Future?
This paper predicts the future of project management software and provides a discussion of the assumptions made to develop these predictions. It provides a flexible framework for future...
Computer Management Concepts for Student Engineering
This paper presents many of the principles and concepts being taught to engineers of the future concerning their use of computer related activities. For example, from the cost/risk/benefit...
Computers on the Project Team
This paper presents the utilization of various computer technologies as an integral part of the project team at a large multi-discipline Architectural/Engineering firm. Technologies discussed...
Painless Method of Using Computers in A/E Firms
There is now an efficient and economical method of using computer technology in a small A/E firm. The recent advances in microcomputer technology have made it possible to take advantage...
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