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RISEffective Monitoring of the Concrete Pouring Operation in an RFID-Based Environment
Publisher: American Society of Civil Engineers
Abstract: A ubiquitous sensing and communications environment, recently introduced to the construction industry, requires not only the development of a Web-based system, but also the integration of this system with hardware devices. ...
Stochastic Forecast of Construction Cost Index Using a Cointegrated Vector Autoregression Model
Publisher: American Society of Civil Engineers
Abstract: The construction cost index (CCI) has been widely used to measure the cost trend in the construction industry. The index is used as an important input when estimating construction budgets and assessing risks in resource ...
Stochastic Revenue and Cost Model for Determining a BOT Concession Period under Multiple Project Constraints
Publisher: American Society of Civil Engineers
Abstract: The concession period is an important issue in the contractual arrangement of build-operate-transfer (BOT) projects, such as highways, bridges, and tunnels. In determining the concession period, it is predominantly the ...
Vision-Based Interactive Path Planning for Robotic Bridge Paint Removal
Publisher: American Society of Civil Engineers
Abstract: Since the 1970s, the toxic lead content in old paints has become a significant health concern. The common approach used in removing corroded paint for bridge paint maintenance relies on manual operation of blast nozzles ...
Graphic-Based Human-Machine Interface for Construction Manipulator Control
Publisher: American Society of Civil Engineers
Abstract: Large-scale construction manipulators are important to productivity and safety on the construction site. Traditionally, manipulators are controlled by an operator, who pulls and pushes levers, which open and close hydraulic ...
Utilization of Prior Information in Neural Network Training for Improving 28-Day Concrete Strength Prediction
Publisher: ASCE
Abstract: A concrete mix design aims to obtain the optimal proportions of concrete ingredients, including cement, water, sand, coarse aggregates, and admixtures. Neural networks (NNs) have been widely applied in research to predict ...
USN-Based Data Acquisition for Increasing Safety in the Concrete Formwork Operation
Publisher: American Society of Civil Engineers
Abstract: The construction operation is usually executed in a dynamic environment. The operation needs to be constantly monitored to prevent any structural failures. Data acquisition should provide information on whether the operation ...
Structured Idea Creation for Improving the Value of Construction Design
Publisher: American Society of Civil Engineers
Abstract: Value engineering (VE) is an effort to increase the value of a system through a creative and organized approach. Idea generation is the most important part in a VE job plan. Although the experts in a VE team can evaluate ...
Creation of Robust Design Alternatives for Temporary Construction in Value Engineering
Publisher: American Society of Civil Engineers
Abstract: A temporary structure serves mainly to protect permanent building structures from the natural environment during the construction operation. When exposed to the natural environment, a temporary structure should effectively ...