Markov Decision Processes in Structural Optimization
Initial structural design and its associated inspection and maintenance policies are modelled as a Markov Decision Process. This approach attempts to realistically capture the dynamics...

Reliability-Based Optimization Using Sequential Quadratic Programming
This paper proposes a method for reliability-based optimization of large structures using the Stochastic Finite Element Method, including both component and system reliabilities. In SFEM,...

Optimal Configuration for Fiber Reinforced Composites under Uncertainties of Material Properties and Loadings
Fiber reinforced composite structures could be designed by selecting proper fiber orientation in structures to suit specified desires for strength, stiffness or other mechanical properties....

Structural System Design under Uncertainty Via Pareto Optimization
Structural systems are generally designed under safety, serviceability and economy requirements. The single objective optimal design problem of both deterministic and nondeterministic...

An Exact Expression for the Distribution of Linear Combinations of Uniform Random Variables
Structural dynamic analysis have often in the past relied on the assumption that the system under consideration is well known ahd have been associated the unpredictability of the response...

Reliability Analysis of Plates with Initial Deflection by Entropy Model
Reliability analysis of postbuckling strength is discussed on rectangular plates with initial deflections whose statistical mechanism is estimated by the maximum entropy criteria. Assuming...

Pre-Test Selection of Static Force and Displacement Measurement Locations for Damage Assessment
An incomplete set of static force and displacement measurements are used for parameter identification of linear elastic structures at the element level. Measurement locations and the level...

Parameter Estimation in Complex Linear Structures
We present a new parameter estimation method which simultaneously computes element constitutive parameters and unmeasured displacements of finite element models from measured static responses....

Bridge Overloading Criteria
Considerable concern is being expressed by the public and government agencies over the deteriorating state of the country's infrastructure. At the same time, there is a general feedling...

A Multiple Presence Load Model for Bridges
This paper utilises weigh-in-motion data to simulate multi-lane traffic crossing short span multiple-lane bridges. In this manner the reduction factors for a multiple lane bridge are derived....

What Makes a Quality Paper?
A good paper is one that is easy for members of the intended audience to read and understand. It must contain an informative abstract. The introduction should include information on why...

Stabilizing Drop Structure by Drainage Modifications
East Drain Terminal Drop Structure is located in East Drain, an open toe drain of Palmetto Bend Dam, in the tide water area of south Texas. The drop structure was threatened by piping...

Case Study: Design of Groundwater Quality Monitoring Systems
This paper demonstrates the fundamental aspects of the design an implementation of state-of-the-art groundwater monitoring system, using conventional design principles. Based on experiences...

Ecuador?The Lower Guayas Flood Control and Drainage Project?A Case Study
The Government of Ecuador (GOE) invited the World Bank in 1975 for a general review of the rural development in the country. One of the main findings of a Bank mission was the importance...

Operation of the Tennessee Valley Authority Water Control System Under Extreme Drought Conditions
The Tennessee Valley region recently suffered through the most severe drought of record. As increasing demands were placed on the reservoir system, operating priorities were modified to...

Retention Parameter Estimates for Curve Number Runoff Procedure
A technique is developed for computing estimates and associated probabilities of the retention parameter S in the Soil Conservation Service curve number runoff procedure. This technique...

Expert System for Agricultural and Water Quality Management
Agricultural activities occur in an open environment where uncontrollable climatic events influence both agricultural productivity and water quality. A decision support system is described...

Calculation of Runoff from Rainfall Using NURP Data
Peak runoff flows and flood hydrographs are important elements in the design of drainage and flood-protection structures. The validity of methods for predicting peak flow from rainfall...

ET from Shallow Groundwater Maintained by Controlled-Drainage/Subirrigation System
Soil-water management by maintaining a shallow groundwater level (watertable) via a dual purpose subdrainage-subirrigation system, is becoming popular in humid regions of the United States...

Design of Latticed Steel Transmission Structures
This standard, Design of Latticed Steel Transmission Structures (ASCE 10-90), provides requirements for the design of guyed and self-supporting...

 

 

 

 

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