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Showing 1 to 20 of 56 for “"Bridge construction"”.
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A Heuristic Model for Predicting Bridge Construction Requirements
Made available in DSpace on 2014-12-10T22:22:13Z (GMT). No. of bitstreams: 1 7500418.pdf: 3798625 bytes, checksum: f7e79f855786e7ea7edafc2957bbd78e (MD5) Previous issue date: 1974
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Guideline for Implementing Accelerated Bridge Construction in South Dakota
… to investigate the implementation of accelerated bridge construction (ABC) in South Dakota. Accelerated bridge construction is defined as construction practices that employ innovative techniques to reduce on-site construction time and interruption to traffic. Less interruption to traffic also …
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Categorizing Accelerated Bridge Construction Projects for Improving Decision-Making
Accelerated Bridge Construction, also known as ABC, is a methodology that seeks to improve project development of bridges by reducing the overall project schedule and the impact on the traveling public by implementing innovative technologies and strategies in any phase of project development. …
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An economic evaluation on FRP for bridge construction in South African coastal areas
… However, the use of FRP composites for bridge construction is faced with challenges. These challenges arise from uncertainties regarding the high material and initial construction costs. Additionally, there is limited research available on the costs involved when incorporating the fibres …
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Seismic Performance of Bridge Column-Pile-Shaft Pin Connections for Application in Accelerated Bridge Construction
Bridges with integral superstructures are common in high-seismic regions. The superstructure and substructure are connected using rigid connections in these bridges. However, hinge or "pin" connections may be used to connect columns to pile-shafts to reduce the overall force demand in the integral …
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Effects of weather-related disasters on U.S. highway, street and bridge construction sector labor markets
… Hundreds of miles of highways, streets and bridges are damaged every year due to severe storm events and are particularly vulnerable to flood damage. The urgency to repair and reconstruct these road networks after disasters creates a sudden demand shock for construction industry services and …
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Integrating Risk Assessment Techniques into Building Information Modelling (BIM) Environment for Enhanced Risk Management in Bridge Construction
The architecture, engineering, and construction (AEC) sectors recognise the risks in complex structures and new building methods, emphasising the need for effective risk management. Traditionally, managing these risks faces challenges in the real world. Information and Communications Technology …
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Characterization of UHPFRC Materials for Bridge Construction: An Opportunity to Offset the Need for Prestressing in Bridge Decks
… an increasing number of reinforced concrete bridge structures are deemed to be in need of repair either due to the short durability lifetime of the materials of their original design, or due to climatic extremes that cause the concrete materials to fail (Mermigas 2018). This is especially …
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Development and optimization of ultra-high performance concrete using local materials
Accelerated Bridge Construction (ABC) is a set of design principles that allow for the rapid construction of bridges. In accelerated bridge construction, a material known as ultra-high performance concrete (UHPC) is often used to join structural elements of the bridge together. While the material …
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Refinement of the Inverted T-Beam Bridge System for Virginia
The inverted T-beam bridge system is a bridge construction technique that follows accelerated bridge construction processes. The system was discovered in France and first adopted in the U.S. by the Minnesota Department of Transportation. In 2012 the system was modified and adopted by Virginia, with …
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Design Manual Development for a Hybrid, FRP Double-Web Beam and Characterization of Shear Stiffness in FRP Composite Beams
… are being considered for structural members in bridge construction as lighter, more durable alternatives to steel and concrete. Extensive testing and analysis of a pultruded, hybrid double web beam (DWB) developed for use in bridge construction has been conducted at Virginia Tech. A primary …
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Acoustic emission evaluation of FRP composite specimens in tension and bending
… Polymer composites are relatively new to the bridge construction industry. One of the challenges to greater usage is the lack of a nondestructive method to accurately evaluate them. Nondestructive evaluation of FRP composite structures using Acoustic Emissions was conducted. Seven tension …
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Cost-Savings of Implementing Site-Specific Ground Motion Response Analysis in Design of Mississippi Embayment Bridges
… response analysis (SSGMRA) were conducted for a bridge site in Monette, Arkansas. The SSGMRA indicated the design acceleration response spectrum determined using the American Association of State Highway and Transportation Officials (AASHTO) general seismic procedure could be reduced by 1/3 for …
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Transverse Sub-Assemblage Testing of the Inverted-T Bridge System
The inverted-T bridge system is a rapid bridge construction technique that consists of precast inverted-T girders placed adjacent to one another and covered with a cast-in-place deck. This system was first implemented in the U.S. by the Minnesota Department of Transportation (Mn/DOT). This research …
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Carbon nanotubes and their application to very long span bridges
Spanning long distances in bridge construction relies mainly on the structure's efficiency and materials used. Whereas structural design for high rise building is fast-expanding, the overall design of long span bridges has not progressed significantly, and the increase in span chiefly depends of …
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Neural networks applications in estimating construction costs
… application of neural networks technology to construction cost estimating problems. This is done by developing neural networks applications for a number of case studies constructed from the historical cost data of actual construction projects. Parameter-based cost estimating applications, …
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Investigation of the Time-Dependent Longitudinal Flexural Behavior of the Varina-Enon Bridge
… combination of steel and concrete allows for the construction of lighter and stiffer structures. Post-tensioned concrete is widely utilized throughout the United States highway system and bridge construction. Over time, the force in the prestressing strands is reduced by delayed strains in the …
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Rehabilitation of Longitudinal Joints in Double-Tee Girder Bridges
<p>Prefabricated bridge elements have become an essential part of accelerated bridge construction (ABC), which is an emerging technology to expedite bridge construction. Among several bridge girder types, precast double-tee girders are common on county bridges in South Dakota because of the ease of …
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