Download or read book Rebar Cage Construction and Safety written by Michael J. Casey and published by Amer Society of Civil Engineers. This book was released on 2012-09-01 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rebar Cage Construction and Safety: Best Practices presents guidelines for the safe handling of steel reinforcing-bar (rebar) cages throughout the design, fabrication, and erection process. The focus is on rebar cages used for large, cast-in-place concrete columns in a variety of settings, including bridge piers, elevated highway sections, and high-rise buildings. These cages are inherently unstable, usually held together by tie-wire alone. They are challenging to fabricate, to lift from the horizontal to the vertical position, and to support in the temporary condition until concrete is cast. Engineered temporary support systems, such as bracing or cable-guy systems, can mitigate the instability of standing rebar cages and resist lateral loads, ensuring better safety for the iron workers tasked with climbing the cages. Topics include: overview of rebar cages; organisational management for rebar cages; construction engineering; checklists of best practices for construction; and summary, conclusions, and recommendations. This volume describes best practices for construction engineering and construction practice regarding rebar cages.It will be useful to construction engineers working with large columns for the first time as well as construction contractors looking to establish policies and procedures related to rebar column safety.
Download or read book Stability of Bridge Column Rebar Cages During Construction written by Juan C. Builes Mejia and published by . This book was released on 2010 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: The lateral behavior and stability of bridge column rebar cages were investigated to reduce the potential of failure and collapse during construction. Rebar cages are temporary structures made of longitudinal and transverse reinforcing bars that are connected by tie wire connections. Recent collapses during construction exposed the vulnerabilities of these temporary structures to accidental loads that may occur at this stage. Therefore, experimental and analytical investigations were conducted to understand the lateral behavior of bridge column rebar cages. Experimental work was performed on individual components of rebar cages, such as tie wire connections and reinforcing bars, under various types of loading. Two full-scale bridge column rebar cages were subjected to incremental loading to determine the lateral behavior, identify failure modes, and calibrate the analytical models. Using the results from the experimental study, nonlinear finite element analyses were developed to determine the effect of critical parameters on the lateral behavior of column rebar cages. The investigated parameters were: tie wire connections, internal braces, column diameter, longitudinal and transverse reinforcement ratios, and column height. The results of these analyses showed that the internal braces have a significant effect on the lateral behavior and failure mode of bridge column rebar cages. Guidelines for determining the lateral stiffness and improving the bridge column rebar cage stability are proposed.
Download or read book Reinforcing Rodworkers Health and Safety Manual written by Construction Safety Association of Ontario and published by Etobicoke, Ont. : Construction Safety Association of Ontario. This book was released on 1997 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Current and Future Trends in Bridge Design Construction and Maintenance 2 Safety Economy Sustainability and Aesthetics written by Institute of Civil Engineers and published by Thomas Telford. This book was released on 2001-12-14 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Institution of Civil Engineers has organised a series of conferences to celebrate, at the start of the New Millennium, the enormous achievements made in the field of bridge engineering in recent years. This volume of papers from the second of these conferences, held in Hong Kong, encompasses the state-of-the-art in bridge design, construction, maintenance and safety assessment. It includes papers on major bridge schemes, both completed and under construction, and on innovative approaches used in various parts of the world. It also looks at local and regional projects and bridge related issues. The wealth of information contained in this publication will be of interest to bridge consultants and contractors, practising engineers, researchers and bridge owners, both local and international.
Download or read book Temporary Structure Design written by Christopher Souder and published by John Wiley & Sons. This book was released on 2014-11-10 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive guide to temporary structures in construction projects Temporary Structure Design is the first book of its kind, presenting students and professionals with authoritative coverage of the major concepts in designing temporary construction structures. Beginning with a review of statistics, it presents the core topics needed to fully comprehend the design of temporary structures: strength of materials; types of loads on temporary structures; scaffolding design; soil properties and soil loading; soldier beam, lagging, and tiebacks; sheet piling and strutting; pressure and forces on formwork and falsework; concrete formwork design; falsework; bracing and guying; trestles and equipment bridges; and the support of existing structures. Temporary structures during construction include scaffolding, formwork, shoring, ramps, platforms, earth-retaining structures, and other construction structures that are not part of the permanent installation. These structures are less regulated and monitored than most other parts of the construction process, even though they are often supporting tons of steel or concrete—and the safety of all workers on the site depends on these structures to perform as designed. Unfortunately, most tragic failures occur during construction and are usually the result of improperly designed, constructed, and/or maintained temporary structures. Temporary Structure Design fills an important need in the literature by providing a trusted, comprehensive guide to designing temporary construction structures. Serves as the first book to provide a design-oriented approach to the design of temporary structures Includes coverage of the various safety considerations inherent in temporary structure design and construction Provides information on estimating cost and schedules for these specialized structures Covers formwork and falsework, as well as personnel protection, production support, environmental protection, and foundational structures If you're a student or a professional working in the field of construction or structural engineering, Temporary Structure Design is a must-have resource you'll turn to again and again.
Download or read book Structural Safety of Bridge Decks with Variable Rebar Cover written by Prem Egade and published by . This book was released on 2019 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt: Construction defects are common and are difficult to avoid completely. This arises due to improper workmanship, inspection, drawing and specification. On bridge decks, achieving the desired cover is necessary since inadequacy can cause accelerated corrosion in steel and for the most part spalling and delamination which ultimately led to failure. Tolerance provided by different standards and specification also restrict the amount of rebar. So, construction is more focused on increasing cover undermining the loss of strength as consequence. The objective of this research is to check the safety of decks by analyzing bridges for reduction in capacity due to cover variation. The investigation was conducted on two old and two new bridges using Ground Penetration Radar (GPR) for possible rebar cover variation. Data were collected with ground coupled high-frequency 2.6GHz antenna for high accuracy. The dielectric constant for depth calculation was estimated using migration and ground truth method with minimum error. The hyperbolic signatures were detected and plotted in form of contours and percent distribution was calculated. For 0.5 in. (13mm) and 1 in. (25.4mm) increase in rebar cover, the deck capacity is reduced by 9% and 18%, respectively for 8.5 in. (216mm) thickness of the slab. It was found that on average the rebar cover distribution of 40% and 77% varied +1/2 inch and +1 inch, respectively. The reduced negative moment capacity followed by decreased effective depth is compared with design moments. Finally, the load on rebar cage is modeled and deflection and stresses are calculated different bar sizes and distance of rebar supports. The smaller size rebar with less spacing deflected more than larger size rebars.
Download or read book Drilled Shaft Design and Construction Guidelines Manual written by Lymon C. Reese and published by . This book was released on 1977 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Drilled Shaft Design and Construction Guidelines Manual Reese L C and Allen J D Structural analysis and design for lateral loading written by Lymon C. Reese and published by . This book was released on 1977 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Drilled Shaft Design and Construction Guidelines Manual Construction procedures and design for axial loading written by Lymon C. Reese and published by . This book was released on 1977 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Drilled Shaft Design and Construction Guidelines Manual written by Lymon C. Reese and published by . This book was released on 1977 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Principles of Construction Safety written by Allan St John Holt and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: The construction industry has not had a good record on health and safety and faces tough legal and financial penalties for breaches of the law. This book provides a unique resource for all those who construct or procure the construction of projects of all sizes and in all countries and for clients who need to keep abreast of their own and their contractors' responsibilities. It gives practical guidance on best practice, including: measuring performance and recording information developing a safety policy and method statements assessing risk training and understanding people the basics of the construction/environment interface The book addresses several topics not found in other reference works, discussing techniques of health and safety and basic environmental management as applied to the industry. It uniquely provides 50 quick reference guides setting out solutions to common problems. These include falls, manual and mechanical handling, work with asbestos and noise. It also summarises the main UK legal requirements on construction safety and health and includes a number of useful checklists and model forms. Written by a very experienced health and safety practitioner, who is also author of the highly successful IOSH book Principles of Health and Safety at Work, this book will be welcomed by all responsible for health and safety. It will also provide an excellent text for the NEBOSH (National Examination Board in Occupational Safety and Health) Construction Safety and Health national certificate.
Download or read book Cal OSHA Pocket Guide for the Construction Industry written by and published by . This book was released on 2015-01-05 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Cal/OSHA Pocket Guide for the Construction Industry is a handy guide for workers, employers, supervisors, and safety personnel. This latest 2011 edition is a quick field reference that summarizes selected safety standards from the California Code of Regulations. The major subject headings are alphabetized and cross-referenced within the text, and it has a detailed index. Spiral bound, 8.5 x 5.5"
Download or read book Drilled Shaft Manual Construction procedures and design for axial loading written by Lymon C. Reese and published by . This book was released on 1977 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drilled shafts have been used on a limited scale for many years as an alternative to driven piles in a variety of foundation problems. However, uncertainty about the behavior of the drilled shaft has forestalled widespread adoption. The subject package, by Dr. Lymon C. Reese of the University of Texas, is intended for use by bridge engineers, geotechnical engineers, and builders of pile foundations. The manual contains rational procedures and practical guidelines for the design and construction of drilled shaft foundations. Volume I presents a rational design procedure for drilled shafts under axial loading and includes guidelines on construction methods, inspection, load testing, specifications, and cost estimates. Volume II presents alternative methods for computing the response of the shaft to lateral loading and presents the structural design of the shaft for axial and/or lateral loading.
Download or read book A Practical Guide to the Safety Profession written by Jason A. Maldonado and published by CRC Press. This book was released on 2019-08-15 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Practical Guide to the Safety Profession: The Relentless Pursuit will help reshape the way we talk about safety, prompt action, and engage workers from all levels of an organization. The book includes real-life experiences and characters that are relatable to anyone who has worked in the safety and health field for any amount of time. It will provide answers for every safety professional who has ever asked: "Is this actually making people safer?" It shines a light on ineffective practices that drive a wedge between the safety professional and the people they support and then provides meaningful alternative practices. Features Provides a streamlined process for eliminating high impact hazards Emphasizes concepts that are immediately actionable with little to no investment costs Includes real-life studies and examples
Download or read book Construction Management JumpStart written by Barbara J. Jackson and published by John Wiley & Sons. This book was released on 2006-09-18 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: Launch Your Construction Management Career—Quickly and Effectively Written by an experienced construction management specialist, Construction Management JumpStart provides all the core information you need, whether you're considering a new career or expanding your responsibilities: Understanding the functions of construction management Understanding the design and construction process Working with contracts documents Estimating project costs Administering contracts Managing the job site Creating and maintaining a project schedule Measuring project performance Controlling quality Ensuring project safety
Download or read book Safety Insights written by Nektarios Karanikas and published by CRC Press. This book was released on 2020-09-29 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: Public safety, as well as the safety of products and services, is of paramount importance and interest to individuals, organisations and society. Safety successes are achieved every second, but we take them for granted and we do not appreciate the challenges professionals meet to make the world as safe as possible. Safety failures are less frequent but become focal points of stakeholders and the public with a tendency to blame and not comprehend the context and the hard decisions professionals have to make when balancing safety with competing goals. This edited book includes case studies from industry practitioners exactly as they experience them without relying on the understanding of researchers who conduct studies and try to map the overall situation per case based on multiple interviews, observations and questionnaires. Included are case studies from the aviation, construction, oil and gas, telecommunications, transportation, health and public safety industries. They are stories told by frontline practitioners who work to keep the public safe. In each chapter, the author, based on his/her professional experience, shares two real cases, one "success" and one "failure", explaining the background and approach, and critically reflecting why his/her initiatives and activities worked or didn’t work. They are descriptive of the case, context and tools, techniques, methods and approaches followed and include the valuable safety lesson learned. This book is a forum for professionals to express and share with others their knowledge and experience usually found implicitly or hidden under formal and informal practices.
Download or read book State Magazine written by and published by . This book was released on 2009 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: