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Articles 421 - 450 of 902
Full-Text Articles in Engineering
Spotlight On Construction: Expansion And Renovation Of Georgia Southern University’S Henderson Library Spurred By Quintupling Of Student Body, Ann Hamilton, Mark Holland
Spotlight On Construction: Expansion And Renovation Of Georgia Southern University’S Henderson Library Spurred By Quintupling Of Student Body, Ann Hamilton, Mark Holland
Georgia Library Quarterly
The article reports on the expansion and renovation of Georgia Southern University's Henderson Library. The Zach S. Henderson Library has been the hub of academic life at Georgia Southern University for more than 30 years. The library has been the focus of an extensive expansion and renovation to help meet the needs of the university's growing student body. The first phase of the $22.75 million project opened on October 1, 2006. The original building included 109,515 square feet of space. The additional building will feature seating on the first, second and third floors and a balcony on the fourth floor …
Proposal For A Construction Industry Digital Competency Centre For Ireland, Alan V. Hore
Proposal For A Construction Industry Digital Competency Centre For Ireland, Alan V. Hore
Conference papers
The Irish construction industry is facing a series of fundamental challenges that is affecting every player in the AEC lifecycle from architects to owners to tenants. Despite technology advances in recent years, the Irish construction industry lags behind other industries in respect to Information Communications Technology (ICT) investments. Despite a pressing need for innovation, procurement and tendering procedures in Ireland largely discourages new ideas and puts further pressure on wafer-thin margins that characterise the construction sector. This paper will reflect on the deliverables of the Construction Information Technology Alliance (CITA) in Ireland, which was formed in partnership between the Technological …
Implementing Ecommerce In The Irish Construction Industry, Alan V. Hore, Roger West
Implementing Ecommerce In The Irish Construction Industry, Alan V. Hore, Roger West
Conference papers
The current methods of ordering, delivering and invoicing of materials in the construction in-dustry is enormously inefficient, with vast quantities of paperwork, duplication of effort, scanning, re-keying and resolving mismatches between invoices, delivery dockets and purchase orders. The objective of this pa-per is to set out the progress that is being made by the Construction IT Alliance (CITA) in Ireland to support the implementation of eCommerce in the Irish construction industry. The authors will present the result of a pilot project in 2006 which demonstrated that the technology necessary for implementing an electronic supply chain exists and could be deployed …
Citax: A Collaborative Ict Standards Model For The Irish Construction Industry, Alan V. Hore, Roger West
Citax: A Collaborative Ict Standards Model For The Irish Construction Industry, Alan V. Hore, Roger West
Conference papers
The Irish construction industry is facing a series of fundamental challenges that is affecting every player in the AEC lifecycle, from architects to engineers to quantity surveyors to owners to tenants. Despite technological advances in recent years, the Irish construction industry lags behind other industries in respect to ICT investments. Although there is a pressing need for innovation, existing procurement and tendering procedures in Ireland largely discourage new ideas and put further pressure on thin margins that characterise the competitiveness of the construction sector. The low level of inter-company ICT connectivity reflects the general fragmented and adversarial nature of the …
A Computer-Aided-Learning Tool For Teaching Construction Engineering Decision Making: An Excavation Stage Educational Game, Hosnachah Ahmed Refaat Mekkawi
A Computer-Aided-Learning Tool For Teaching Construction Engineering Decision Making: An Excavation Stage Educational Game, Hosnachah Ahmed Refaat Mekkawi
Archived Theses and Dissertations
No abstract provided.
Post-Tensioned Steel Structure, Purdue Ect Team
Post-Tensioned Steel Structure, Purdue Ect Team
ECT Fact Sheets Archive
Welded steel Moment-Resisting Frames (MRFs) were long considered as one the most earthquake-resistant types of structures. Recently, the idea of applying the post-tensioning technology to achieve moment resistant structural systems has been investigated at the University of California, San Diego. Since 1996, moment-resisting connections using post-tensioning concepts have been developed and tested for precast concrete beam-to-column connections, and concrete shear walls.
Ehydraulic Pneumatic Fracturing, Purdue Ect Team
Ehydraulic Pneumatic Fracturing, Purdue Ect Team
ECT Fact Sheets Archive
The technology is an enhancement process designed for integration with primary in-situ treatment technologies such as vapor extraction, bioremediation, thermal treatment, and 'pump and treat'. Fractures in dense soils are created, using hydraulic or pneumatic methods, making existing fractures larger to get at contaminants and allowing a more effective distribution of the extractive air throughout the soil. Pneumatic Fracturing was jointly developed by Accutech Remedial Systems Inc. and the New Jersey Institute of Technology. It involves the injection of air (or another gas) into a contaminated geologic formation at sufficient pressure and flow rate to create artificial fractures or to …
Electro Osmotic Pulse Technology For Prevention Of Water Intrusion In Concrete Structure, Purdue Ect Team
Electro Osmotic Pulse Technology For Prevention Of Water Intrusion In Concrete Structure, Purdue Ect Team
ECT Fact Sheets Archive
Groundwater intrusion into a building can cause serious structural degradation, corrosion of expensive mechanical equipment. ElectroOsmotic Pulse (EOP) technology is based on the concept of electroosmosis; the movement of an electrically charged ion in a liquid under the influence of an external electric field. EOP not only eliminates water-seepage problems from the interior of the structure without excavation, but it further mitigates corrosion damage to mechanical equipment and reduces the interior relative humidity of the basements.
Soundprint: Continuous Acoustic Monitoring For Structure, Purdue Ect Team
Soundprint: Continuous Acoustic Monitoring For Structure, Purdue Ect Team
ECT Fact Sheets Archive
The effective evaluation and management of corrosion in unbonded post-tensioned tendons requires an understanding of the causes of corrosion as well as an appreciation of the measures required to mitigate future corrosion. Present evaluation methods have been unsuccessful in accurately assessing the existing condition of post-tensioned structures. Continuous monitoring technology allows engineers to locate future failures so that property owners can implement cost-effective management strategies. An acoustic monitoring system, SoundPrint® has been developed which allows continuous monitoring of entire structures.
Arcagent – Weld Process Quality Monitoring System, Purdue Ect Team
Arcagent – Weld Process Quality Monitoring System, Purdue Ect Team
ECT Fact Sheets Archive
The ARCAgent 2000 is a real-time monitoring and alarming unit for automated and semi-automated arc welding (GMAW, GTAW, FCAW, SAW, SMAW) applications. The ruggedized ARCAgent 2000 uses an embedded microprocessor for high speed analysis of arc current, supply voltage, gas flow, wire feed speed, and an additional 4-20 mA sensor to verify the weld process parameters. When process problems are detected, context specific diagnostics information is displayed directly to the operator for corrective action.
Alternative Material Dowel Bars For Rigid Pavement Joints, Purdue Ect Team
Alternative Material Dowel Bars For Rigid Pavement Joints, Purdue Ect Team
ECT Fact Sheets Archive
Over the last thirty to forty years, dowel support of the joint in Rigid Joint Pavement (RJP) has been widely used. The problem of deterioration of concrete pavement joints has resulted in the search for alternate solutions. Fiber-reinforced polymer (FRP) and stainless steel represent corrosion resistant alternatives to conventional galvanized steel in this application. The recently study by the FHWA of Alternative Materials for Highway Construction demonstrated that even with extended wet-dry cycles of exposure to fluids of high chloride content, at various temperatures and PH levels, stainless steel had corrosion resistance hundreds and in many cases thousands of times …
Encapco Emulsified Treated Base Product, Purdue Ect Team
Encapco Emulsified Treated Base Product, Purdue Ect Team
ECT Fact Sheets Archive
Encapco’s organic-based asphalt emulsion is used to immobilize lead in contaminated soil. Unlike other fixation or stabilization technologies, which physically bind contaminants in the soil matrix, Encapco’s emulsion is capable of chemically fixating lead. The Encapco process employs a chemical binding reaction in addition to encapsulation to meet regulatory leaching tests. The Encapco process has been evaluated on a number of contaminated materials ranging from silty sand from a quarry site, contaminated sand from a steel mill, and a foundry sand.
Acoustic Wave Sensors, Purdue Ect Team
Acoustic Wave Sensors, Purdue Ect Team
ECT Fact Sheets Archive
Modern office buildings are generally considered safe and healthful working environments. However, energy conservation measures have minimized the infiltration of outside air and contributed to the buildup of indoor air contaminants. Three products manufactured by Microsensor Systems Inc. are introduced: HAZMATCAD, CW Sentry Plus, MiniCAD MKII.
Fiber Optic Sensor : Monitoring Precast Beams, Purdue Ect Team
Fiber Optic Sensor : Monitoring Precast Beams, Purdue Ect Team
ECT Fact Sheets Archive
A new bridge over the Rio Puerco river, west of Albuquerque will be the first of its kind in the nation with built-in fiber-optic sensors to monitor stress in the bridge's girders. Known as "smart bridge" technology, the self-monitoring system offers many advantages over methods that rely largely on visual inspections.
Precast Concrete Beam-To-Column Connection System, Purdue Ect Team
Precast Concrete Beam-To-Column Connection System, Purdue Ect Team
ECT Fact Sheets Archive
Compared to conventional concrete constructions, precast concrete is a better option which is more cost-effective for production, transport, and erection when columns and beams can be fabricated independently. The BSF connection is a hidden beam and connection for gravity loads that eliminates the need for projecting column corbels. From a steel box cast into the concrete beam end, a sliding steel “knife” plate with a safety notch is cantilevered into a steel box that has been cast into the concrete column.
Tru-Frame Steel Truss, Purdue Ect Team
Tru-Frame Steel Truss, Purdue Ect Team
ECT Fact Sheets Archive
After earthquakes, repair and replacement of structural elements is time consuming and expensive. This new truss system contains several diagonal elements designed to absorb seismic energy and yield at prescribed levels. Standard moment frame design requires 100% visual inspection and ultrasonic testing which is eliminated when using the Tru-Frame system. Since all Tru-Frame connections are single pass fillet welds and tension control bolts, they can be visually inspected any time after completion without need for additional testing. This allows subsequent trades to start their work sooner.
Attachment Of Steel Decking Using Mechanical Fasteners And Powder Actuated Or Pneumatic Tools, Purdue Ect Team
Attachment Of Steel Decking Using Mechanical Fasteners And Powder Actuated Or Pneumatic Tools, Purdue Ect Team
ECT Fact Sheets Archive
An alternative method of attaching steel metal decks onto open web bar joist or structural steel beams. Erectors require a fast, reliable, efficient fastening method that can be used independent of weather conditions, and is easy, cost effective and verifiable. Attachment of the deck panels has historically been performed using puddle welding, with self-drilling screws used only when necessary. Today, special nails, driven either by powder propellant (powder actuated tools) or by compressed air (pneumatic tools), are experiencing ever-increasing usage due to the speed, versatility and cost-effectiveness benefits derived by the installer and owner.
Pipeman:Safety In Trenches, Purdue Ect Team
Pipeman:Safety In Trenches, Purdue Ect Team
ECT Fact Sheets Archive
Even though heavy construction equipment such as a crane or backhoe excavator, is used to perform the task of pipe laying in the trench, workers are required to be inside the trench to guide the excavation, pipe laying, and final alignment. Work place safety has become a major concern in the construction industry over the past few decades, and trench cave-ins have caused serious and often fatal injuries to workers in the United States. The Construction Automation and Robotics Laboratory(CARL) at North Carolina State University has developed an alternative which involves advanced new technology: the prototype robotic excavation and pipe …
Smart Sewer Assessment Systems, Purdue Ect Team
Smart Sewer Assessment Systems, Purdue Ect Team
ECT Fact Sheets Archive
The need for accurate preventive assessment of sewer conditions is increasing world wide. The new method utilizes qualified inspection systems that are automated and that utilize artificial intelligence to assess whether or not a crack in the surface of the pipe exists. The KARO system is one example. Developed by the German Federal Ministry of Education, Science, Research, and Technology (BMBF) and four partners from both industry and research institutions. This system is composed of a mobile control and surveillance station, and a mobile robot.