Unified Code Provisions for Concrete Bridges
Provisions on limiting the flexural reinforcement adopted in the new AASHTO LRFD Specification for Bridge Design are summarized (1). They address minimum and maximum levels of reinforcement...
Site Effects on Strong Shaking and Seismic Risk: Recent Developments and Their Impact on Seismic Design Codes and Practice
The very strong influence of localized poor or 'adverse' geological/geotechnical foundation conditions on patterns and concentrations of damage during a number of recent earthquakes (e.g.:...
Guide for the Design of Prestressed Concrete Poles
With the aim of providing engineers with some basic tools and guidelines for the design of structures, the committee prepares code and policy changes, and to expand input of manufacturers...
Assessment and Upgrade of an Older Transmission Line
This paper discusses the various tools and procedures which have been used to assess and upgrade an older 130 kv tower line. The purpose of the assessment was to determine the line compliance...
Consequential Fire Loads on Structures
Much less consideration has been given to the performance of modern structural and architectural systems during fires and to the minimization of damage that threatens the integrity of...
Wind Loads on Low Rise Structures: A Survey
Because of the large investment, high rise buildings are usually tested in a wind tunnel to provide the best wind loading information possible. Since low rise structures each represent...
Seismic Issues in Structural Engineering Codes and Practice
It is necessary that we view the seismic events in an overall probabilistic mode and determine the criteria for acceptable damage at various levels of service in the building. We need...
Development of Hardwood Glulam Timber Bridge Standards
Design standards and specification for 5.5 to 27.4 m(18 to 90 ft.) clear span hardwood glued laminated (glulam) highway bridges have been developed and are available from the Pennsylvania...
Evaluation of Cast Iron Columns for Safety and Reliability
Cast iron columns exist in numerous vintage buildings. Alterations to these buildings often require analysis and modification of the structural system. This paper identifies codes that...
Messeturm Tower: Frankfurt, Germany
A 256 meter (840 feet)tall office tower, currently the tallest building in Europe, has been constructed in Frankfurt Germany. The 7- story structure with 85500 square meter (920,000 square...
Some Aspects of Compression Member Design in Australia
The paper summarizes and elucidates the provisions of the Australian Standard AS4100-1990, Steel Structures, for the design of compression members. Emphasis is placed on those aspects...
A Design for a Football Stadium Roof Enabling Growth of a Natural Grass Playing Surface: Sydney Football Stadium - Australia
This paper discusses the development of a design for a stadium roof which will provide conditions allowing the growth of a wearable natural grass surface suitable for sports including...
AWS versus AIJ Tubular K-Connection Design Rules
Among various existing design rules for circular tubular connections, the AWS rules are compared with the AIJ rules because of differences between the two. Subjects of discussion include...
Optimization of Space Lattice Structures with Multimodal Frequency Constraints
The paper presents an optimization algorithm for the design of space trusses subjected to constant value constraint. The goal of the optimization is a structure of the highest multiple...
Storage Tanks: Going Above Ground
Until just a few years ago, the traditional replacement for a leaking underground storage tank was a new UST. But in September 1988, EPA finalized new regulations for UST systems containing...
The Development of a Wave Data Analysis Standard for a National Wave Measurement Program
The Field Wave Gaging Program (FWGP) at the U.S. Army Corps of Engineers' Coastal Engineering Research Center (CERC) collects and analyzes wave data from around the U.S. coastline to contribute...
Site Characterization by Artificial Neural Networks
Recently, an optimal groundwater management model has been developed to treat groundwater remediation problems at Lawrence Livermore National Laboratory (LLNL). The objective of the model...
Monitoring Water Quality and Use in Colorado
This paper presents the results of a two year study on the impact of irrigation water use on water quality near Greeley, CO. Data on irrigation application efficiency, deep percolation,...
Convergence and Divergence Between Regulated Riparian and Prior Appropriation Provisions in the ASCE Model State Water Rights Code
Although there are two major American water rights systems-- riparian and prior appropriation--there are mixed systems and variations within each major type. The ASCE Model State Water...
Balancing Water Allocation and Water Quality: The Model State Water Code
The Model State Water Code (hereafter called the 'Code') currently being developed by an ASCE task committee is intended to provide a source of legal norms of water allocation for use...
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