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Joint Consideration of Pipe Breakage and Pipe Flow Probabilities
Two issues of distribution network reliability, namely, probability of pipe failure and probability of the design flow being exceeded have been discussed. Expressions containing measures...

Water Distribution System Design by Chance-Constrained Model
The objective of this paper is to present an optimization model for the design of water distribution systems considering the uncertainty in required demands, required pressures, and pipe...

Model for the Optimal Rehabilitation and Replacement of Water Distribution System Components
The objective of the model presented is to determine the minimum cost solution, given the nonlinear nature of the equations required to describe the cost and the hydraulics of a water...

Design of Overtopping Protection for Small Dams
Many existing small embankment dams in the United States cannot safely pass current design floods without overtopping. In the past several years, embankment overtopping protection has...

Spring Creek Dam is Ready for the PMF: A Case History
Spring Creek Dam is the first earth embankment dam in Colorado, with inadequate spillway capacity, to be modified utilizing roller compacted concrete (RCC). With a structural height of...

Embankment Overtopping?Case Histories
Because many existing dams are subject to overtopping, there is a need to understand embankment behavior during an overtopping event. Understanding of this behavior will allow evaluation...

Pipe Network Analysis on a Microcomputer
This paper reports on experience gained with the use of commercially available software for pipe network analysis. This information may be helpful to water system managers and consulting...

Input Programs for Engineering Applications
This paper discusses several input program types and the data structures associated with them. Two input programs were designed for KYPIPEF to demonstrate the use of files of records and...

Subsurface Drainage System for the Klamath Project
The U. S. Bureau of Reclamation's Klamath Project was authorized in 1905 for irrigation purposes. A subsurface drainage system was constructed in the public lands within the...

Rehabilitation of the SF Calawah River Bridge
The failure of a 4-span reinforced concrete bridge in Washington State initiated a study that ultimately led to a unique method of bridge rehabilitation. Severe scour resulted in settlement...

The Design of Stays for Cable Stayed Bridges
Much of the R & D work done in the development of details for the modernized form of stayed girder bridges has been contributed by those practicing in the field of prestressed...

Innovative Approaches to Bridge Pier Foundation Design
As a part of a Value Engineering change proposal the pier foundations for the US-31 bridge over the St. Joseph River and floodplain near Niles, Michigan were re-designed. The varying soil...

Evaluation and Surveillance of Concrete Bridge Structures
A number of cost-effective techniques are available for evaluation and surveillance of concrete bridge structures. The methods covered in this paper include: long-term bridge instrumentation,...

Dynamic Behavior of Three J.S. Cable Stayed Bridges
Dynamic considerations in the design of three recently designed cable stayed bridges are discussed. The presentation includes analysis for eigenfrequencies and eigenmodes, assessment of...

Cracking of a Tilt-Up Structure Due to Dynamic Loads
The extensive cracking of a tilt-up reinforced concrete structure is discussed. The site investigation revealed horizontal cracks at two feet to seven feet above a mezzanine level which...

Dynamic Behavior of R/C Buildings in Vi? del Mar, Chile
The Chilean earthquake of 3 March 1985 resulted in an effective peak acceleration of 0. 36g in the coastal city of Vina del Mar. The city had an inventory of over 400 reinforced concrete...

Cyclic Behavior of Concrete-Filled Tubes
This paper presents the results of tests on hollow and concrete-filled rectangular tubes subjected to cyclic bending and buckling. It is shown that concrete infill greatly improves the...

Time-Domain Dam-Reservoir-Interaction Analysis Based on Boundary Elements
For a reservoir with an arbitrary shape of the upstream face and of the bottom including an adjacent regular part of constant depth extending to infinity, the hydrodynamic-stiffness matrix...

Wind Forces Measured on a Tall R.C. Chimney
This paper describes some aspects of an analysis performed on measurements of a variety of parameters relating to the wind, wind forces on and the response of a tall chimney. The results...

Improved Design Procedure for Shallow-Buried Structures to Resist Airblast Loading
Both conventional and nuclear weapons generate airblast loads of sufficient magnitude that structure survival at acceptable cost favors below grade construction. The design of shallow-buried...

 

 

 

 

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