Pin Piles Save Silos
The United Grain Corp. annually ships about 200 million bushels of wheat and other grains to destinations around the world from its leased facility on the Columbia River at Vancouver,...

Drilling with Direction
Norfolk, Va.'s 48 in. diameter raw water main crosses three rivers in its 52,000 ft route. At the Elizabeth River, an aerial or subaqueous crossing was not feasible, so a...

Hassle-Free Bridge Rehab
Engineers involved in Cleveland's Main Bridge rehab invoked whatever was necessary to keep area traffic moving and the bridge closure period to a minimum. They helped change...

Traversing the Terminals
When it opens this December, the Denver International airport will rely on an $89 million automated-people-mover, (APM) system as the primary means of transporting passengers between the...

Trenchless Track Record
Ottawa is a leading user of trenchless technology for sewer rehabilitation projects. The municipality has nearly a decade's worth of experience with at least nine different...

In Search of Better Load Ratings
Typically, engineers must make a number of subjective assumptions regarding loading and response behavior when they develop a load rating for civil structures. As a result, many unknowns...

All Dressed Up
Its location at 660 Madison Avenue will put the new home of clothier Barneys New York in the heart of Manhattan's exclusive midtown shopping district, but the $120 million...

Speedy Backfilling for Old Mines
In November 1992, the U.S. Bureau of Mines, in cooperation with the Office of Surface Mining (OSM), used two recently-developed pneumatic backfilling devices to completely fill an abandoned...

Haunted by the Past
Given the legacy of the construction of the Missouri Valley Water Tunnel in the 1920s�eight deaths and numerous injuries�it's no wonder that safety was foremost in the minds...

Finite Element Analysis of Reinforced Concrete in Japan and US: Introduction and Overview
The finite element method of analysis now provides the engineer with the capability to analyze very complex structural systems in a much more realistic manner including geometry and support...

Constitutive models
The constitutive models used in the finite element analysis of reinforced concrete structures are presented from a number of different perspectives. The first part of this chapter presents...

Fracture Mechanics
This brief report, prepared by ACl 447 Subcommittee 2, reviews recent advances in finite element modeling of fracture and damage in concrete structures. The fundamentals of the fracture...

Reinforced Concrete
Recent developments and procedures used to model reinforced concrete using finite element analysis are summarized. Special emphasis is placed on the results of a survey of papers published...

Time-Dependent Behavior
This paper is a report of the material presented at the International Workshop on Finite Element Analysis of Reinforced Concrete, Session 4 - Time Dependent Behavior, held at Columbia...

Dynamic Loading
This chapter deals with those problems of finite element analysis of concrete structures, which arise from the dynamic nature of loadings. Following a short enumeration of the dynamic...

Computational Aspects
In the past, two distinctly different approaches - smeared and discrete failure models have been adopted to describe failure mechanisms in plain and reinforced concrete structures. Although...

Generic Problems
Generic Problems are basic problems in structural mechanics that recur frequently, have been investigated experimentally and involve the behavior of elements or components found in many...

Specific Applications
In recent years, practicing engineers have begun to use nonlinear finite element methods to design and evaluate increasingly complex concrete structures. This chapter presents several...

Finite-Element Analysis as a Design Tool
This chapter covers the role of finite-element analysis in professional structural design. Past and present usage is covered lightly, with practice in a reputed design office as example....

Seismic Design of Multi-Story, Wood-Framed Buildings
The seismic design and analysis of wood-framed structures is relatively simple; however, the challenges that present themselves within this design medium are shear and overturning force...

 

 

 

 

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