Dynamic Impact Load Tests of a Bridge Guardrail System

Dynamic Impact Load Tests of a Bridge Guardrail System PDF Author: Richard M. Gutkowski
Publisher:
ISBN:
Category : Bridge railings
Languages : en
Pages : 52

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Dynamic Impact Load Tests of a Bridge Guardrail System

Dynamic Impact Load Tests of a Bridge Guardrail System PDF Author: Richard M. Gutkowski
Publisher:
ISBN:
Category : Bridge railings
Languages : en
Pages : 52

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Deformation and Destruction of Materials and Structures Under Quasi-static and Impulse Loading

Deformation and Destruction of Materials and Structures Under Quasi-static and Impulse Loading PDF Author: Holm Altenbach
Publisher: Springer Nature
ISBN: 3031220935
Category : Technology & Engineering
Languages : en
Pages : 261

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Book Description
This book presents the theoretical and experimental foundations of quasi-static deformation of elastoplastic and viscoplastic materials and structural elements made of them. Experimental studies of deformation and fracture of materials under complex loading under impulse influences are described and discussed. A short introduction of theoretical and numerical methods for studying the stress–strain state of elastoplastic structural elements under dynamic, impulse loading and their interaction with other media is given.

Springer Handbook of Wood Science and Technology

Springer Handbook of Wood Science and Technology PDF Author: Peter Niemz
Publisher: Springer Nature
ISBN: 3030813150
Category : Technology & Engineering
Languages : en
Pages : 2064

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Book Description
This handbook provides an overview on wood science and technology of unparalleled comprehensiveness and international validity. It describes the fundamental wood biology, chemistry and physics, as well as structure-property relations of wood and wood-based materials. The different aspects and steps of wood processing are presented in detail from both a fundamental technological perspective and their realisation in industrial contexts. The discussed industrial processes extend beyond sawmilling and the manufacturing of adhesively bonded wood products to the processing of the various wood-based materials, including pulp and paper, natural fibre materials and aspects of bio-refinery. Core concepts of wood applications, quality and life cycle assessment of this important natural resource are presented. The book concludes with a useful compilation of fundamental material parameters and data as well as a glossary of terms in accordance with the most important industry standards. Written and edited by a truly international team of experts from academia, research institutes and industry, thoroughly reviewed by external colleagues, this handbook is well-attuned to educational demands, as well as providing a summary of state-of-the-art research trends and industrial requirements. It is an invaluable resource for all professionals in research and development, and engineers in practise in the field of wood science and technology.

Dynamic Full Scale Impact Tests of Bridge Barrier Rails

Dynamic Full Scale Impact Tests of Bridge Barrier Rails PDF Author: California. Division of Highways
Publisher:
ISBN:
Category : Bridge railings
Languages : en
Pages : 62

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Design of Roadside Barrier Systems Placed on MSE Retaining Walls

Design of Roadside Barrier Systems Placed on MSE Retaining Walls PDF Author: Roger P. Bligh
Publisher: Transportation Research Board
ISBN: 0309154995
Category : Technology & Engineering
Languages : en
Pages : 195

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Book Description
TRB's National Cooperative Highway Research Program (NCHRP) Report 663: Design of Roadside Barrier Systems Placed on MSE Retaining Walls explores a design procedure for roadside barrier systems mounted on the edge of a mechanically stabilized earth (MSE) wall. The procedures were developed following American Association of State Highway and Transportation Officials Load and Resistant Factor Design (LRFD) practices. Appendices A through H to NCHRP Report 663 are available online. Titles of Appendices A through H are as follows: Appendix A: Design of MSE Wall; Appendix B: State-of-Practice Survey; Appendix C: Detailed Drawing of MSE Wall for Bogie Test; Appendix D: Bogie Test MSE Wall Construction Procedure; Appendix E: Detailed Drawing of MSE Wall for TL-3 Test; Appendix F: TL-3 MSE Wall Construction Procedure; Appendix G: Crash Test Vehicle Properties and Information; Appendix H: Crash Test Sequential Photographs--

Restoration of Forests

Restoration of Forests PDF Author: R.M. Gutkowski
Publisher: Springer Science & Business Media
ISBN: 9401155488
Category : Technology & Engineering
Languages : en
Pages : 447

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Book Description
In the conflict between logging as a material resource and preservation the forests are becoming depleted throughout the world and this depletion is aggravated by the effects of air pollution. The concept of utilization is thus now being expanded to include vital societal values. These issues are nowhere more acute than in Central and Eastern Europe, where obsolete, poorly maintained industrial plant is common. Air pollutant levels are so high that one area has been called the Black Triangle. Timber is required in this region as a building material and logging for fuelwood is practised, giving rise to a complex linkage between industry, energy supply, deforestation, agriculture, value-added forestry products and economic development. This book presents current information on national and regional issues relating to environmental threats to forest land, focusing on: ecology, environment and science; forest ownership and management; forest product utilization; government and public agency roles. The recommendations, action items and the human network needed for regional-level implementation are detailed in `situation', `position' and `state of the art' papers. The final objective is to develop a plan of action to help abate the negative impacts while sustaining or expanding the forests, the economy and the energy sufficiency of the region.

Dynamic Impact Testing of S76x8.5 (S3x5.7) Steel Posts for Use in Cable Guardrail Systems

Dynamic Impact Testing of S76x8.5 (S3x5.7) Steel Posts for Use in Cable Guardrail Systems PDF Author: Cody S. Stolle
Publisher:
ISBN:
Category : Roads
Languages : en
Pages : 0

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Guidelines for the Supplementary Load Testing of Bridges

Guidelines for the Supplementary Load Testing of Bridges PDF Author: Institution of Civil Engineers (Great Britain). National Steering Committee for the Load Testing of Bridges
Publisher: Thomas Telford
ISBN: 9780727727374
Category : Bridges
Languages : en
Pages : 88

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Book Description
Bridge authorities in the UK are currently facing a large programme of bridge assessment and strengthening. This has been caused, in part, by the necessity of ensuring that the European Union deadline for allowing 40-tonne lorries on to UK roads can be met. Many bridges have failed theoretical assessments and some bridge owners, frustrated by the fact that many failed structures are apparently in good condition and showing no signs of distress, have resorted to load testing their bridges to try to provide additional information. A National Steering Committee for the Load Testing of Bridges was set up to examine the role of bridge load testing as a tool for assisting the assessment process. The National Steering Committee consists of representatives from all major bridge owners including the Highways Agency, the County Surveyors Society, the London Bridges Engineering Group, Railtrack and the British Waterways Board. It also includes representatives from consulting engineers and universities and has the support of the Institution of Civil Engineers. The overall objective of the National Steering Committee was to produce authoritative guidance on load-testing techniques; which could be used by the practising engineer to determine capacities of existing bridges/structures that are safe, prudent and minimize levels of restriction to the transport infrastructure. In June 1995 the committee appointed Rendel Palmer & Tritton in association with Peter Lindsell & Associates and supported by Professors Bakht, Clark and Harding as consultants to carry out a preliminary study of all the available information on bridge load testing. They were to recommend a detailed methodology which would form the basis of a brief to consultants appointed to produce authoritative guidelines for the load testing of bridges. Their report concluded that there is a place for load testing in the evaluation of bridges and other structures and that load testing is a valid tool for bridge managers. They also concluded that there was enough information and experience available to permit safe and effective guidelines to be written. As a result of the preliminary study the National Steering Committee decided to divide the second stage work and restrict the scope of this document to guidelines for supplementary load testing. Work on proof and proving load testing is being carried out by others under the auspices of the Highways Agency. The guidelines contained in this document were not drafted in a prescriptive form, but seek to provide advice on the appropriate use of supplementary load testing as an aid to assessment by calculation. The guidelines have been written to enable engineers to determine: when it is appropriate to consider the use of supplementary load testing; the level of risk, both public safety and economic, associated with load testing; how to plan and carry out a load test including the level of expertise necessary, the appropriate loading methods and the type and quantity of instrumentation required. In addition, the document is intended to be a source of information on load testing, measuring equipment and specialist techniques that engineers can use for reference.

Highway Safety Literature

Highway Safety Literature PDF Author:
Publisher:
ISBN:
Category : Highway research
Languages : en
Pages : 820

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A Guide for the Field Testing of Bridges

A Guide for the Field Testing of Bridges PDF Author: American Society of Civil Engineers. Committee on Safety of Bridges
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 86

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Book Description