Practices for Permitting Superheavy Load Movements on Highway Pavements PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Practices for Permitting Superheavy Load Movements on Highway Pavements PDF full book. Access full book title Practices for Permitting Superheavy Load Movements on Highway Pavements by A. T. Papagiannakis. Download full books in PDF and EPUB format.
Author: A. T. Papagiannakis
Publisher:
ISBN: 9780309271783
Category : Pavements
Languages : en
Pages : 42
Get Book Here
Book Description
"TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 476: Practices for Permitting Superheavy Load Movements on Highway Pavements documents the practices followed in issuing permits for overweight and superheavy commercial vehicles (SHCVs) or 'superloads.' Superloads are trucks that exceed the thresholds set for overweight vehicles, but are allowed to operate with annual permits throughout state highway networks." --
Author: A. T. Papagiannakis
Publisher:
ISBN: 9780309271783
Category : Pavements
Languages : en
Pages : 42
Get Book Here
Book Description
"TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 476: Practices for Permitting Superheavy Load Movements on Highway Pavements documents the practices followed in issuing permits for overweight and superheavy commercial vehicles (SHCVs) or 'superloads.' Superloads are trucks that exceed the thresholds set for overweight vehicles, but are allowed to operate with annual permits throughout state highway networks." --
Author: Hiroshi Yokota
Publisher: CRC Press
ISBN: 1000173755
Category : Technology & Engineering
Languages : en
Pages : 926
Get Book Here
Book Description
Bridge Maintenance, Safety, Management, Life-Cycle Sustainability and Innovations contains lectures and papers presented at the Tenth International Conference on Bridge Maintenance, Safety and Management (IABMAS 2020), held in Sapporo, Hokkaido, Japan, April 11–15, 2021. This volume consists of a book of extended abstracts and a USB card containing the full papers of 571 contributions presented at IABMAS 2020, including the T.Y. Lin Lecture, 9 Keynote Lectures, and 561 technical papers from 40 countries. The contributions presented at IABMAS 2020 deal with the state of the art as well as emerging concepts and innovative applications related to the main aspects of maintenance, safety, management, life-cycle sustainability and technological innovations of bridges. Major topics include: advanced bridge design, construction and maintenance approaches, safety, reliability and risk evaluation, life-cycle management, life-cycle sustainability, standardization, analytical models, bridge management systems, service life prediction, maintenance and management strategies, structural health monitoring, non-destructive testing and field testing, safety, resilience, robustness and redundancy, durability enhancement, repair and rehabilitation, fatigue and corrosion, extreme loads, and application of information and computer technology and artificial intelligence for bridges, among others. This volume provides both an up-to-date overview of the field of bridge engineering and significant contributions to the process of making more rational decisions on maintenance, safety, management, life-cycle sustainability and technological innovations of bridges for the purpose of enhancing the welfare of society. The Editors hope that these Proceedings will serve as a valuable reference to all concerned with bridge structure and infrastructure systems, including engineers, researchers, academics and students from all areas of bridge engineering.
Author:
Publisher:
ISBN:
Category : Highway research
Languages : en
Pages : 310
Get Book Here
Book Description
Author: Mohamed Nimeri
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 99
Get Book Here
Book Description
The movement of superheavy loads (SHLs) has become more common over the years since it is a vital necessity for many important industries, such as chemical, oil, electrical, and defense. SHL hauling units are much larger in size and weight compared to standard trucks. SHL vehicles’ gross vehicle weights may be in excess of a few million pounds, so they often require specialized trailers and components with nonstandard spacing between tires and axles. Accommodating SHL movements requires the determination of whether the pavement is structurally adequate and involves the analysis of the likelihood of instantaneous or rapid load-induced shear failure. As part of the Federal Highway Administration project, Analysis Procedures for Evaluating Superheavy Load Movement on Flexible Pavements, a comprehensive experimental program was designed and conducted to verify and calibrate multiple theoretical approaches for the SHL analysis methodology. This experimental program included five different large-scale experiments with different objectives and characteristics using a large-scale box. The first two experiments consisted of a subgrade (SG) layer (experiment number (No.) 1) and an SG with a crushed-aggregate base layer on top (experiment No. 2). The subsequent three experiments consisted of a full pavement structure (experiment No. 3), a full pavement structure with a sloped shoulder (experiment No. 4), and a full pavement structure with a flexible and a rigid buried utility embedded in the SG layer (experiment No. 5). This report details each experiment’s objectives, materials characterization, and construction techniques. It also presents the experimental measurements.
Author: Hadi Nabizadeh
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 25
Get Book Here
Book Description
The movement of superheavy loads (SHLs) has become more common over the years, since it is a vital necessity for many important industries, such as chemical, oil, electrical, and defense. SHL hauling units are much larger in size and weight compared to standard trucks. SHL vehicles’ gross vehicle weights may be in excess of a few million pounds, so they often require specialized trailers and components with nonstandard spacing between the tires and axles. Accommodating SHL movement requires the determination of whether the pavement is structurally adequate and involves the analysis of the likelihood of instantaneous or rapid load-induced shear failure. As part of this Federal Highway Administration project, Analysis Procedures for Evaluating Superheavy Load Movement on Flexible Pavements, procedures for characterizing properties of the existing pavement layers were developed. This report describes the material characterization required to predict pavement responses (stresses, strains, and deflections) within the pavement structure when subjected to SHL-vehicle movement. An overall step-by-step procedure is presented for determining the damaged dynamic modulus master curve for the asphalt-concrete layer. An analogous procedure is also presented for determining the resilient modulus of unbound materials as a function of the state of stresses based on falling weight deflectometer measurements.
Author:
Publisher:
ISBN:
Category : Highway research
Languages : en
Pages : 44
Get Book Here
Book Description
Author: Fritz J. Jooste
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 100
Get Book Here
Book Description
The Texas Department of Transportation (TxDOT) has been issuing an increasing number of permits for movement of superheavy loads. The effect of superheavy loads on pavements is not well established at the present time. To address this problem, TxDOT has funded a research project with the Texas Transportation Institute (TTI) with the objective of developing a procedure to evaluate the potential for pavement damage on a proposed superheavy load route, as well as to determine whether temporary strengthening measures are needed. During the study a number of superheavy loads will be monitored. This report describes the data collection and analysis results for a superheavy load move which took place in Victoria during December, 1992. The move involved the transport of two superheavy loads. A Multi-Depth Deflectometer measured pavement deflection under the superheavy loads. The study used the deflection data to evaluate the applicability of linear elastic layered theory to predict pavement response under the loading. Predicted displacement from the theory compared favorably with corresponding measurements. To evaluate the effects of multiple wheel loads, an analysis was done to establish how predicted pavement response varies with distance from a given load and with different load configurations. The results indicate that stresses based on a single-axle model yield conservative estimates of the potential for pavement damage. This analysis showed that the road had adequate structural capacity to sustain the superheavy loads without developing visible distress.
Author: Ronald L. Terrell
Publisher: Transportation Research Board National Research
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 116
Get Book Here
Book Description
This synthesis will be of interest to pavement designers, highway administrators, and others concerned with pavement design, permit issuance and fees for overloaded trucks, and enforcement of truck weight laws. Information is presented on the effects that overloads have on pavements and on the methods of accommodating or controlling overloads. Highway pavements are designed for legal axle loads, and loads above these will significantly shorten pavement life. This report of the Transportation Research Board describes the effects on pavements of loads greater than those used in design, gives information on permit issuance and fees for overloaded vehicles, and describes the difficulties in enforcing truck weight laws.
Author:
Publisher:
ISBN:
Category : Highway engineering
Languages : en
Pages : 1006
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 148
Get Book Here
Book Description
