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Seismic Evaluation And Rehabilitation Of Low Rise Reinforced Masonry Buildings With Flexible Diaphragms
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Book Synopsis Seismic Evaluation and Rehabilitation of Low-rise Reinforced Masonry Buildings with Flexible Diaphragms by : Gregory L. Cohen
Download or read book Seismic Evaluation and Rehabilitation of Low-rise Reinforced Masonry Buildings with Flexible Diaphragms written by Gregory L. Cohen and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seismic Evaluation of Low-Rise Reinforced Masonry Buildings with Flexible Diaphragms by : Steven C. Sweeney
Download or read book Seismic Evaluation of Low-Rise Reinforced Masonry Buildings with Flexible Diaphragms written by Steven C. Sweeney and published by . This book was released on 2008 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper provides an integrated approach to the seismic evaluation of low-rise reinforced masonry buildings with flexible roof diaphragms. The paper is divided into four phases. In Phase 1 (Behavior), results from shaking-table testing, quasi-static testing, and analytical predictions are integrated to provide a coherent description of the seismic response of low-rise reinforced masonry buildings with flexible roof diaphragms. Two half-scale, low-rise reinforced masonry buildings with flexible roof diaphragms are subjected to earthquake ground motions on the Tri-axial Earthquake and Shock Simulator at the United States Army Construction Engineering Research Laboratory, Engineer Research and Development Center. Following the shaking-table tests, diaphragms and top four courses of attached masonry walls are salvaged from the half-scale structures and tested quasi-statically in their own plane. A new index, the diaphragm drift ratio, is introduced to describe the potential for diaphragm damage. In Phase 2 (Analysis), coordinated analytical modeling is developed and implemented to corroborate and extend the results of that experimental work, and to examine the efficacy and accuracy of different analytical modeling approaches. Linear elastic finite-element models, simplified two-degree-of-freedom models, and nonlinear lumped-parameter models are developed; all agree well with measured responses. In Phase 3 (Seismic Evaluation), the first two phases are used to develop and verify a simple extension to FEMA 310, the predominant seismic evaluation methodology for low-rise reinforced masonry buildings with flexible diaphragms. In Phase 4 (Application and Verification), the proposed extension, applied to four existing buildings, is shown to be simple, useful, and necessary.
Book Synopsis Seismic Evaluation of Low-rise Reinforced Masonry Buildings with Flexible Diaphragms by :
Download or read book Seismic Evaluation of Low-rise Reinforced Masonry Buildings with Flexible Diaphragms written by and published by . This book was released on 2004 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seismic Evaluation of Low-rise Reinforced Masonry Buildings with Flexible Diaphragms by : Gregory L. Cohen
Download or read book Seismic Evaluation of Low-rise Reinforced Masonry Buildings with Flexible Diaphragms written by Gregory L. Cohen and published by . This book was released on 2006 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Guidelines for Seismic Evaluation and Rehabilitation of Tilt-up Buildings and Other Rigid Wall/flexible Diaphragm Structures by :
Download or read book Guidelines for Seismic Evaluation and Rehabilitation of Tilt-up Buildings and Other Rigid Wall/flexible Diaphragm Structures written by and published by . This book was released on 2001 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Seismic Strengthening of Low-rise Unreinforced Masonry Structures with Flexible Diaphragms by : Franklin Lehr Moon
Download or read book Seismic Strengthening of Low-rise Unreinforced Masonry Structures with Flexible Diaphragms written by Franklin Lehr Moon and published by . This book was released on 2003 with total page 1298 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a capstone to several Mid-America Earthquake Center (MAE Center) projects, a full-scale two story unreinforced masonry (URM) building was tested following the application of several retrofit techniques, which included the use of fiber reinforced polymer (FRP) overlays, near surface mounted (NSM) rods, vertical unbonded post-tensioning, and joist anchors. The test structure was composed of four URM walls, flexible timber diaphragms and interior stud walls, and was designed and built following construction practices consistent with those used in Mid-America prior to 1950. Initial testing subjected both the roof diaphragm and in-plane walls to slowly applied lateral load reversals in an unreinforced sate. Following this series of tests, each in-plane wall was retrofit and retested. Experimental results indicated that global issues such as flange participation and the effects of overturning moment substantially impacted the response of primary components both before and after retrofit. FRP retrofit techniques resulted in strength increases up to 32% and displayed a pseudo-ductile response caused by progressive debonding. For cases where such retrofits forced sliding failures, large increases in energy dissipation resulted. The use of vertical unbonded post-tensioning resulted in strength increases between 40%-60%; however, piers displayed a tendency to switch from a ductile rocking/sliding mode to a more brittle diagonal tension mode. In addition, results highlighted the need for retrofit schemes to employ both horizontal and vertical reinforcement to prevent progressive crack opening that can decrease wall displacement capacity. Based on the experimental results, the model implied by the "Prestandard for the Rehabilitation of Existing Structures," FEMA 356, for the analysis of in-plane URM walls was modified and extended to (1) include the effect of FRP pier retrofits and (2) consider the global effects of URM structures. The resulting model displayed reasonable estimates of measured response both before and after retrofit, with an average error of 14%. In addition, the proposed model displayed improvements over the current model from 14% to 66%. Based on the results of sensitivity analyses this improved accuracy was primarily attributed to the consideration of global effects.
Book Synopsis Hydro-Environmental Analysis by : James L. Martin
Download or read book Hydro-Environmental Analysis written by James L. Martin and published by CRC Press. This book was released on 2013-12-04 with total page 5742 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focusing on fundamental principles, Hydro-Environmental Analysis: Freshwater Environments presents in-depth information about freshwater environments and how they are influenced by regulation. It provides a holistic approach, exploring the factors that impact water quality and quantity, and the regulations, policy and management methods that are necessary to maintain this vital resource. It offers a historical viewpoint as well as an overview and foundation of the physical, chemical, and biological characteristics affecting the management of freshwater environments. The book concentrates on broad and general concepts, providing an interdisciplinary foundation. The author covers the methods of measurement and classification; chemical, physical, and biological characteristics; indicators of ecological health; and management and restoration. He also considers common indicators of environmental health; characteristics and operations of regulatory control structures; applicable laws and regulations; and restoration methods. The text delves into rivers and streams in the first half and lakes and reservoirs in the second half. Each section centers on the characteristics of those systems and methods of classification, and then moves on to discuss the physical, chemical, and biological characteristics of each. In the section on lakes and reservoirs, it examines the characteristics and operations of regulatory structures, and presents the methods commonly used to assess the environmental health or integrity of these water bodies. It also introduces considerations for restoration, and presents two unique aquatic environments: wetlands and reservoir tailwaters. Written from an engineering perspective, the book is an ideal introduction to the aquatic and limnological sciences for students of environmental science, as well as students of environmental engineering. It also serves as a reference for engineers and scientists involved in the management, regulation, or restoration of freshwater environments.
Book Synopsis Safety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures by : George Deodatis
Download or read book Safety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures written by George Deodatis and published by CRC Press. This book was released on 2014-02-10 with total page 1112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Safety, Reliability, Risk and Life-Cycle Performance of Structures and Infrastructures contains the plenary lectures and papers presented at the 11th International Conference on STRUCTURAL SAFETY AND RELIABILITY (ICOSSAR2013, New York, NY, USA, 16-20 June 2013), and covers major aspects of safety, reliability, risk and life-cycle performance of str
Book Synopsis Seismic Response of Low-Rise Masonry Buildings With Flexible Roof Diaphragms by : Gregory L. Cohen
Download or read book Seismic Response of Low-Rise Masonry Buildings With Flexible Roof Diaphragms written by Gregory L. Cohen and published by . This book was released on 2001 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study compares the responses from shaking-table testing and analytical predictions evaluated in the context of geometric scaling, to provide a coherent description of the seismic response of low-rise masonry buildings with flexible roof diaphragms. Two half-scale, low-rise reinforced masonry buildings with flexible roof diaphragms are subjected to carefully selected earthquake ground motion on the Tri-axial Earthquake and Shock Simulator at the Construction Engineering Research Laboratory. Damage to the half-scale specimens is assessed using published protocols. Geometric scaling analysis relates response and damage of the half-scale specimens to those of the full-scale prototype structures. Linear elastic modeling is simplified to a generalized two-degrees-of-freedom idealization. Response-spectrum analysis of such an idealization is accurate and justified for prediction of dynamic response of the half-scale specimens and the corresponding full-scale prototype. It is shown that low-rise masonry buildings with flexible roof diaphragms can be designed for seismic loads as single-degree-of- freedom systems, using the degree of freedom associated with the in-plane response of the diaphragm in the building's transverse direction, rather than the degree of freedom associated with the in-plane responses of the shear walls.
Book Synopsis Seismic Assessment and Rehabilitation of Existing Buildings by : S. Tanvir Wasti
Download or read book Seismic Assessment and Rehabilitation of Existing Buildings written by S. Tanvir Wasti and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present volume contains a total of 23 papers centred on the research area of Seismic Assessment and Rehabilitation of Existing Buildings. This subject also forms the core of Project SfP977231, sponsored by the NATO Science for Peace Office and supported by the Scientific and Technical Research Council of Turkey [ TUBIT AK ]. Most of these papers were presented by the authors at a NATO Science for Peace Workshop held in Izmir on 13 - 14 May, 2003 and reflect a part of their latest work conducted within the general confines of the title of the NATO Project. Middle East Technical University, Ankara, Turkey serves as the hub of Project SfP977231 and coordinates research under the project with universities within Turkey, e. g. Istanbul Technical University and Kocaeli University, and with partner institutions in Greece and the Former Yugoslav Republic of Macedonia: A few articles have also been contributed by invited experts, who are all noted researchers in the field. Altogether, the contents of the volume deal with a vast array of problems in Seismic Assessment and Rehabilitation and cover a wide range of possible solutions, techniques and proposals. It is intended to touch upon many of these aspects separately below. Earthquakes constitute possibly the most widely spread and also the most feared of natural hazards. Recent earthquakes within the first six months of 2003, such as the Bingol Earthquake in Turkey and the Algerian earthquake, have caused both loss of life and severe damage to property.
Book Synopsis Techniques for the Seismic Rehabilitation of Existing Buildings by :
Download or read book Techniques for the Seismic Rehabilitation of Existing Buildings written by and published by FEMA. This book was released on 2006 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rapid Visual Screening of Buildings for Potential Seismic Hazards: Supporting Documentation by :
Download or read book Rapid Visual Screening of Buildings for Potential Seismic Hazards: Supporting Documentation written by and published by Government Printing Office. This book was released on 2015 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Rapid Visual Screening (RVS) handbook can be used by trained personnel to identify, inventory, and screen buildings that are potentially seismically vulnerable. The RVS procedure comprises a method and several forms that help users to quickly identify, inventory, and score buildings according to their risk of collapse if hit by major earthquakes. The RVS handbook describes how to identify the structural type and key weakness characteristics, how to complete the screening forms, and how to manage a successful RVS program.
Book Synopsis Handbook of Structural Engineering by : W.F. Chen
Download or read book Handbook of Structural Engineering written by W.F. Chen and published by CRC Press. This book was released on 2005-02-28 with total page 1765 pages. Available in PDF, EPUB and Kindle. Book excerpt: Continuing the best-selling tradition of the Handbook of Structural Engineering, this second edition is a comprehensive reference to the broad spectrum of structural engineering, encapsulating the theoretical, practical, and computational aspects of the field. The contributors cover traditional and innovative approaches to analysis, design, and rehabilitation. New topics include: fundamental theories of structural dynamics; advanced analysis; wind- and earthquake-resistant design; design of prestressed structures; high-performance steel, concrete, and fiber-reinforced polymers; semirigid frame structures; structural bracing; and structural design for fire safety.
Download or read book Earthquake Spectra written by and published by . This book was released on 2006 with total page 962 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Masonry written by Brian Trimble and published by ASTM International. This book was released on 2008 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Papers from a June 2006 symposium report on recent work in cement, lime, mortars for unit masonry, and manutactured masonry units. Some specific topics covered include investigation and repair of glazed brick cladding, the benefits and problems of ASTM C 1324 for analyzing hardened masonry mortars, time-of-cooling effects on mortar joint color, and the selection and use of natural and manufactured stone adhered veneer. Other subjects examined include defection criteria for masonry beams, the effect of void area on brick masonry performance, seismic evaluation of low-rise reinforced masonry buildings with flexible diaphragms, and greening of mortars. B&w photos and illustrations are included. Trimble is affiliated with the Brick Industry Association. Brisch is affiliated with Rockwell Lime Company. There is no subject index.
Book Synopsis NEHRP Guidelines for the Seismic Rehabilitation of Buildings by :
Download or read book NEHRP Guidelines for the Seismic Rehabilitation of Buildings written by and published by . This book was released on 1997 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Principles of Structural Design by : W.F. Chen
Download or read book Principles of Structural Design written by W.F. Chen and published by CRC Press. This book was released on 2005-10-31 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many important advances in designing modern structures have occurred over the last several years. Structural engineers need an authoritative source of information that thoroughly and concisely covers the foundational principles of the field. Comprising chapters selected from the second edition of the best-selling Handbook of Structural Engineering,
