Journal of Computing in Civil Engineering: Recent submissions
Now showing items 1441-1460 of 2320
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Computing Three-Axis Orientations of a Tunnel-Boring Machine through Surveying Observation Points
(American Society of Civil Engineers, 2011)This research aims to develop an alternative solution to computing the three-axis orientations of a tunnel-boring machine (TBM) during microtunneling and pipe-jacking operations. Comprehensive geometric foundations are ... -
Prediction of Sewer Condition Grade Using Support Vector Machines
(American Society of Civil Engineers, 2011)Assessing the condition of sewer networks is an important asset management approach. However, because of high inspection costs and limited budget, only a small proportion of sewer systems may be inspected. Tools are therefore ... -
Optimizing the Prediction Accuracy of Concrete Compressive Strength Based on a Comparison of Data-Mining Techniques
(American Society of Civil Engineers, 2011)This study attempts to optimize the prediction accuracy of the compressive strength of high-performance concrete (HPC) by comparing data-mining methods. Modeling the dynamics of HPC, which is a highly complex composite ... -
Ontology for Relating Risk and Vulnerability to Cost Overrun in International Projects
(American Society of Civil Engineers, 2011)Risk management is about identifying risks, assessing their impacts, and developing mitigation strategies to ensure project success. The difference between the expected and actual project outcomes is usually attributed to ... -
Integrated Model for Optimizing Strategic Overhaul Planning of Distributed Pump Stations
(American Society of Civil Engineers, 2011)An important part of the lifecycle costs for pump stations are the support costs associated with energy and preventive maintenance of the pumps. Both cost terms are interrelated because a trade-off exists between maintaining ... -
Approximation Techniques for Transportation Network Design Problem under Demand Uncertainty
(American Society of Civil Engineers, 2011)Conventional transportation network design problems treat origin-destination (OD) demand as fixed, which may not be true in reality. Some recent studies model fluctuations in OD demand by considering the first and the ... -
Use of GIS and Topology in the Identification and Resolution of Space Conflicts
(American Society of Civil Engineers, 2011)Construction activities need space on the jobsite for their execution. Workers, equipment, materials, temporary facilities, and the developing structure share the limited jobsite space during the construction period. ... -
Provision of Reinforcement in Concrete Solids Using the Generalized Genetic Algorithm
(American Society of Civil Engineers, 2011)A generalized genetic algorithm has been developed to find the global optimal reinforcement contents for a concrete solid structure subjected to a general three-dimensional (3D) stress field. Feasible solutions were examined ... -
Identification of Viscoelastic Functions for Hot-Mix Asphalt Mixtures Using a Modified Harmony Search Algorithm
(American Society of Civil Engineers, 2011)This study proposes a modified harmony search (MHS) algorithm for determining the time-domain viscoelastic function of hot-mix asphalt (HMA) concrete materials. This MHS technique, employing a global optimization technique ... -
Detection of Patterns in Water Distribution Pipe Breakage Using Spatial Scan Statistics for Point Events in a Physical Network
(American Society of Civil Engineers, 2011)Infrastructure systems of many U.S. cities are in poor condition, with many assets reaching the end of their service life and requiring significant capital investments. One primary requirement to optimize the allocation ... -
Metrics for Quantifying the Similarities and Differences between IFC Files
(American Society of Civil Engineers, 2011)Recently, several papers reported problems in data exchange using industry foundation classes (IFC). However, most comparisons were made based on a visual check, a manual count, and observation of properties that were ... -
Electimize: New Evolutionary Algorithm for Optimization with Application in Construction Engineering
(American Society of Civil Engineers, 2011)In nonlinear construction optimization problems, the capability of current optimization algorithms to find an optimal solution is usually limited by their inability to evaluate the effects of changing the value of each ... -
Military Facility Cost Estimation System Using Case-Based Reasoning in Korea
(American Society of Civil Engineers, 2011)Numerous cost estimations are made repetitively in the initial stages of construction projects in response to ongoing scope changes and often need to be recalculated frequently. In practice, the square foot method, considered ... -
Generalized Image Recognition Algorithm for Sign Inventory
(American Society of Civil Engineers, 2011)Image detection and recognition algorithms are crucial for developing an intelligent sign inventory system using video log images. The technical challenge is to detect and recognize more than 670 different types of signs ... -
Graphical User Interface for Guided Acoustic Waves
(American Society of Civil Engineers, 2011)This paper presents -
Integrated Sensor and Media Modeling Environment Developed and Applied to Ground-Penetrating Radar Investigation of Bridge Decks
(American Society of Civil Engineers, 2011)Integrated sensor and media modeling environment has been developed to simulate subsurface sensing systems and environmental parameters relevant to the subsurface sensing modalities. The modeling environment is designed ... -
Invitation to Submit Scholarly Articles Using Agent-Based Simulation to Tackle Challenging Civil Engineering Problems
(American Society of Civil Engineers, 2010) -
Integrated Decision Support for Roadway Safety Analysis
(American Society of Civil Engineers, 2011)This paper presents an integrated decision-support framework that helps public agencies identify high-crash locations and develop cost-effective safety improvement projects. State-of-the-art safety concepts, such as safety ... -
Characterization of Laser Scanners and Algorithms for Detecting Flatness Defects on Concrete Surfaces
(American Society of Civil Engineers, 2011)In many construction and infrastructure management projects, it is important to ensure the flatness of concrete surfaces. Inspectors assess the quality of flat surface construction by checking whether a surface deviates ... -
Multiobjective Evolutionary Finance-Based Scheduling: Entire Projects’ Portfolio
(American Society of Civil Engineers, 2011)A strength Pareto evolutionary algorithm (SPEA) is proposed and was modified by incorporating logic-preserving crossover and mutation operators and employed to devise a set of optimum finance-based schedules of multiple ...