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Journal of Structural and Construction Engineering 2018年第753期83卷 1647-1654页

作者： Yamashita, Tetsuo Oyobe, Hiroyuki Miyazawa, Ryosuke School of Architecture Kogakuin University Japan Completed Master's Program in Graduate School Kogakuin University Japan

This paper finds and discusses the features of buckling and inelastic response on steel hexagonally latticed plates for cyclic shear deformation. Cyclic tests of four steel latticed plates with various hexagonal shapes were performed. The elastic rigidity, yield strength and strain concentration at hinges specified in the tests, can be evaluated theoretically. The various buckling behavior is explained by introducing the generalized slenderness calculated using FE linear buckling analysis. The shear strain at the onset of out-of-plane buckling is approximated by a similar function of generalized slenderness, which was originally proposed for steel panel dampers. © 2018 Architectural Institute of Japan. All rights reserved.

关键词： Shear deformation

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Outline of experimental study and observation on slide bearings : Study on failure and strength in earthquake response of bearings of steel spatial roofs on RC lower frames (Part 1)

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AIJ Journal of Technology and Design 2015年第49期21卷 1001-1005页

作者： Yamashita, Tetsuo Shiratori, Kazuki School of Architecture Kogakuin Univ Japan Completed Master Course of Architectural Program in Kogakuin Univ Japan

The present study experimentally simulates and analyzes the damage of bearings in steel large roofs that was observed after the 2011 off the Pacific coast of Tohoku Earthquake. In this study, cyclic shear force is given to three models of slide bearings and four models semi-fixed bearings. In the slide bearing tests, mobility is the first interest and in the semi-fixed bearing tests, damage and crush of base mortar are focused and the shear strength is evaluated according to the AIJ recommendation. In the Part1, the overview of the experiment and the behavior of slide bearings is described.

关键词： Mortar

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ZAHA HADID 1950-2016

ARTFORUM INTERNATIONAL

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ARTFORUM INTERNATIONAL 2016年第10期54卷 76-+页

作者： Wigley, Mark Vidler, Anthony Libeskind, Daniel Rabbat, Nasser Tschumi, Bernard Gehry, Frank PROFESSOR AND DEAN EMERITUS AT COLUMBIA UNIVERSITY GRADUATE SCHOOL OF ARCHITECTURE PLANNING AND PRESERVATION DEAN AND PROFESSOR OF THE IRWIN S. CHANIN SCHOOL OF ARCHITECTURE AT THE COOPER UNION NEW YORK FOUNDER OF STUDIO LIBESKIND WHICH HAS COMPLETED MAJOR PROJECTS AROUND THE WORLD INCLUDING THE JEWISH MUSEUM IN BERLIN AND THE MASTER PLAN FOR THE WORLD TRADE CENTER SITE IN NEW YORK AGA KHAN PROFESSOR AND THE DIRECTOR OFTHE AGA KHAN PROGRAM FOR ISLAMIC ARCHITECTURE AT THE MASSACHUSETTS INSTITUTE OF TECHNOLOGY ARCHITECT AND THE FOUNDER OF BERNARD TSCHUMI ARCHITECTS NEW YORK AND PARIS FOUNDER OF GEHRY PARTNERS AN INTERNATIONALLY RECOGNIZED ARCHITECTURE STUDIO BASED IN LOS ANGELES

The article presents an obituary for architect Zaha Hadid.

关键词： WOMEN architects

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Cyclic shear tests of steel latticed plates composed of equilateral triangular grids

Journal of Structural and Construction Engineering

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Journal of Structural and Construction Engineering 2013年第694期78卷 2153-2161页

作者： Yamashita, Tetsuo Takeuchi, Ryota Shiratori, Kazuki Sato, Harushige School of Architecture Kogakuin University Japan Completed Architecture Program Graduate School Kogakuin University Japan

The present paper demonstrates and discusses a potential of steel latticed plates to use as seismic walls, through experimental study. Cyclic shear load tests of five steel latticed plates, composed of equilateral triangular grids, were conducted to investigate buckling and post-buckling strength and ductility. Three of five plates yield out-of-plane overall buckling and the rest in-plane member buckling as predicted. The buckling and post-buckling strengths can be approximated using the generalized slenderness calculated by linear buckling analysis and its function for inelastic strength, regardless to the buckling mode. Moreover, these latticed plates show good ductility and energy dissipation capacity But a disadvantage that the buckling deformation is too observable is also exposed.

关键词： Ductility

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Elastic buckling characteristics of single layer latticed shells composed of hexagonal grids

Journal of Structural and Construction Engineering

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Journal of Structural and Construction Engineering 2013年第694期78卷 2143-2151页

作者： Yamashita, Tetsuo Senba, Yuta School of Architecture Kogakuin University Japan Maeda Corporation Japan Completed Architecture Program Graduate School Kogakuin University Japan

The present paper demonstrates and discusses elastic bucking characteristics of single layer latticed shells composed of hexagonal grids. A conventional method to calculate linear buckling loads, based on continuum analogy is found to be also effective like other grid patterns. The bucking mode yields long overall buckling waves and is found to be non-extensional. The range of knockdown factors, the ratios of an elastic buckling load where the analysis considers geometric nonlinear effect to the linear buckling, is also investigated by nonlinear FE analysis. The lowest value is reduced to slightly above 0.5 even without geometric imperfection. The knockdown factor and its reduction due to geometric imperfection are mainly affected by the geometry and slenderness. After all, the range of knockdown factors is found to be above 0.5, based on the elastic nonlinear FE analyses in which the maximum imperfection amplitude is set to 1/500 of the span. The knockdown factors are also compared with the calculations by the reduced stiffness buckling theory.

关键词： Buckling

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Design Joins the Battle Against Sickle-cell Disease

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Design management review 2013年第2期24卷 48-53页

作者： Lori E Crosby Naomi E Joffe Linda A Dunseath Rachel Lee Pediatric psychologist at Cincinnati Children's Hospital Medical Center. She is also co‐director of Innovations in Community Research and Program Evaluation and the director of training for the Community Engagement Core of the Cincinnati Center for Clinical and Translational Science and Training. As a director and collaborator on more than 15 federal grants Crosby has emerged as a leader in conducting research to transform the healthcare system for adolescents and young adults with sickle cell disease. In 2012 she was elected as Fellow of the American Psychological Association Division 54 for her work with individuals affected by sickle cell disease. She holds a doctorate from Wright State University School of Professional Psychology (Dayton Ohio). Doctorate in clinical psychology and completed her residency and fellowship in pediatric psychology at Cincinnati Children's Hospital Medical Center (CCHMC). Joffe stayed on at CCHMC and is now clinical faculty within the Division of Behavioral Medicine serving hematology patients within the Cancer and Blood Diseases Institute. Her research focuses on diverse pediatric populations within the context of chronic illness and she has examined factors related to adherence self‐management pain and coping. She earned her bachelor's degree from Indiana University and her doctorate from Georgia State University. Executive director of the Live Well Collaborative (LWC) an innovation incubator that partners with the University of Cincinnati (UC) and member organizations to develop products and services to meet the growing needs of the 50+ population. Since joining LWC in 2007 she has worked with industry partners and UC to plan 37 projects that have exposed more than 500 students and 30 faculty to multidisciplinary teamwork using design‐thinking tools. She holds a BS in business (marketing) from Miami University. Graphic communication design student at the College of Design Architecture Art and Planning at the University of Cincinnati. She has participated in two cooper

A design‐thinking approach at Cincinnati Children's Hospital Medical Center helps kids with sickle‐cell disease transition into managing their disease as adults.

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Cybernetic Guerrilla Warfare Revisited: From Klein Worms to Relational Circuits

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GREY ROOM 2011年第44期44卷 114-133页

作者： Ryan, Paul Scott, Felicity D. Wasiuta, Mark Paul Ryan is an artist author and teacher. Radical Software published his seminal writings on video and NASA published his Earthscore Notational System. An Associate Professor at the New School he also authored Video Mind Earth Mind (Peter Lang 1993) and The Three Person Solution (Purdue University Press 2009). The Smithsonian Institution has acquired his archives. He is participating in Documenta 13. Felicity D. Scott is director of the program in Critical Curatorial and Conceptual Practices in Architecture (CCCP) at the Graduate School of Architecture Planning and Preservation Columbia University. She is the author of Architecture or Techno-Utopia: Politics After Modernism (MIT Press 2007) and Living Archive 7: Ant Farm (ACTAR 2008). She recently completed the manuscript for a book titled “Cartographies of Drift: Bernard Rudofsky's Encounters with Modernity.” Mark Wasiuta teaches at Columbia University's Graduate School of Architecture Planning and Preservation where he is also Director of Exhibitions and Director of Global Experiments in Art and Architecture. His research is focused on the turn to theories of environment and environmental design in postwar architecture and he is currently working on a history of Los Angeles air its pollution and other contaminants.

The article presents an interview with video artist and art theoretician Paul Ryan. He chronicles the events that led to his working with artist Marshall McLuhan at Fordham University during the 1960s. He discusses his efforts to get the New York State Council on the Arts to increase grant funding for video as an art form in the 1970s. He also comments on his work within the cybernetic art movement.

关键词： VIDEO art -- History CYBERNETIC art

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Operating speed profiles and the ship design cycle

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NAVAL ENGINEERS JOURNAL 2005年第3期117卷 79-85页

作者： Surko, S Osborne, M CDR. Stephen W. Surko USN (ret.) is serving as a principal member of the technical staff of Noesis Inc. He graduated with distinction from the United States Naval Academy in 1982 with a bachelor of science in ocean engineering. Serving as a division officer aboard USS Elliot (DD 967) he enjoyed two WESTPAC deployments and qualified as a surface warfare officer. He completed postgraduate studies at the Massachusetts Institute of Technology in 1988 receiving master of science degrees in naval architecture and marine engineering and mechanical engineering. He earned his professional engineer's license in 1989. Subsequent tours of duty have included: personnel exchange program with Canada's Directorate General Maritime Engineering and Maintenance Philadelphia Naval Shipyard Naval Surface Warfare Center Carderock Division Ship Systems Engineering Station Naval Sea Systems Command Chief of Naval Operations Land Attack Warfare Division and Naval Surface Warfare Center Carderock Division. Steve Surko is an active member of the U.S. Naval Institute and ASNE

One key, but little documented and empirically supported, input in the ship design cycle is the expected operating speed profile. This real-world constraint affects many decisions regarding bull form and power systems, from fuel tanks to main propulsion and ship's service machinery selection and operation. These decisions, in turn, ripple through the design of a ship in ways that are often bard to discern, but clearly impact acquisition and life cycle costs. Recent studies of DDG 51 operating speed profiles demonstrate that the Navy regularly operates with speed profiles considerably different than used to design the ship. In general, warships operate in standard engine order telegraph increments (e.g., Ahead 2/3) and at lower speeds than designed for.

关键词： Ships

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Acquisition of the enhanced Maritime Prepositioning Force, MPF(E), Ship

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NAVAL ENGINEERS JOURNAL 1999年第1期111卷 15-26页

作者： Mazumdar, T Sandison, J DuFlocq, R Thpan Mazurndar:is a Deputy Ship Design Manager from Naval Surface Warfare Center Carderock Division. He was the Design Manager for the Engineering and Design Phase ofthe Enhanced Maritime Prepositioning Fme Ship (MPF(E)). Cuwently Mt: M2.zumdar is Deputy Ship Design Manager in NAVSEA 030 for the LHD and LSD classes of ships. Mr. Mazumdar was awarded a BSE in Naval Architecture and Marine Engineering from the University of Michigan in 1981 and an MS in Computer Science fiom Virginia Tech in 1988. He also possesses an International ChiejEngineer License (Motot unlimited). Mr. Mancmdar has been an Associate Member of WAME since 1981. James C. Sandison:is a Senior Ship Design Manager (SDM) for surface ships in the Nawl Sea Systems Command (NAVSEA03D3C). He has a long tem practical background in design construction and testing of surface ships. Starting in NAVSEC as a diving and salvage systems engineer for the Bathyscaph TRIESTE he has been involved with most ofthe Nays Mine Warfare and Auxiliary ships from naval architect to the present Senior Ship Design Manager for the Strategic Sealift Program. Mr: Sandison entered the U.S. Navy in 1956 in the (diesel) Submarine Service. Afterward he “went to sea in sailing ships and completed an apprenticeship as a wooden shipbuildex. In 1971 he graduated from the University of Michigan with a BSE in Naval Architecture and Marine Engineering and was employed by NAVSEC. His latest additional duties have been as engineering coordinator on board the USS CONSTITUTION for her 200th anniversary sail. Mr. Sandison is a member of SNAME ASNE and the U.S. Naval Institute. Rick DuFlocq has over 24 years of combined project management mechanical system and general awangmmt design and design documentation experience the last 14 years urith Advance Marine Enterprises (AME). He has fmjmned this wurk on a wide variety of ships and auxiliary crafl including submarines primarily for the U.S. Navy and the Military Sealift Command (MSC). He has worked for both shiprards and marine eng

The paper will describe the streamlined acquisition process involved in the procurement, and conversion, of the first two of three Enhanced Maritime Prepositioning Force (MPF(E)) ships. This program was one of the first programs undertaken within the Government's new policy of Acquisition Reform, which resulted in the development of "performance based" requirements for these ships. This program is notable in that one prime contractor is responsible for the accomplishment of all phases, and that the contractors participating were not shipyards as is usually the fashion for Government ship acquisition programs. Also of note, was that after the conversion contracts were awarded, responsibility for the conduct of detail design, conversion, and operation and maintenance of the ship was transferred from the NAVSEA Sealift program Office (PMS 385) to the Military Sealift Command (MSC). The first part of the paper will describe the basic mission of the MPF(E) ships, and a description of the origin of the program requirements. The second part of the paper will chronicle in detail the portions of the engineering design and specification development process, which will include descriptions of the unique digital data recording and tracking systems developed by the Government MPF(E) Design Support Team to support the acquisition phases of the procurement. The third and final part of the paper will elaborate on the conversion contract awards and the transition of the program from PMS 385 to MSC.

关键词： Naval vessels

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Definition of evaluation criteria for system development acquisition modeling and simulation

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NAVAL ENGINEERS JOURNAL 1999年第1期111卷 55-64页

作者： Leite, MJ Mensh, DR Michael J. Leite:is a Principal Engineer with PRC Inc. a division of Litton Industries. He supports combat system engineering for theater air and missile defense. His other tasks have included the command and control for the AEGIS shipbuilding program systems engineering for the 21st Century Surface Combatant combat system survivability and the development of NATO standardization agreements for naval ordnance. He was previously a Senior Engineer with San Diego Gas & Electric with responsibility for its energy application and lighting programs. Prior to joining SDG&E Mr. Leite was a commissioned officer in the U.S. Navy where he served in operations and engineering assignments. Following active duty he accepted a Naval Reserve commission and has retired with the rank of Captain. His assignments included command operational and engineering tours. Mr. Leite has also served as an expert witness in admiralty and engineering matters. He is a gradate of the University of California Berkeley with a Bachelor of Science Degree in Engineering and also holds a Masters Degree in Business Administration from National University in San Diego. Mr. Leite is a Registered Professional Engineer in the States of California and Minnesota. Mr. Leite is a member of ASNE ASCE MORS the Illuminating Engineering Society and the U.S. Naval institute. Dennis Roy Mensh:is a Senior Engineer with PRC Inc. a division of Litton Industries in Crystal City VA where he supports modeling and simulation tasking for combat systems. He received BS and MS degrees in applied Physics from Lopola College in Baltimore MD and the American University in Washington DC. He has also completed the course work towards a Ph.D. degree in computer science specializing in the fields of Operations Reseurch Anabsis Systems Analysis and Computer Modeling and Simulation. Previously he was employed at the White Oak Laboratory of the Naval Surface Warfare Carter in Silver Spring MD where he worked in the areas of naval sensor and weapon system analysis

This paper defines, develops and examines a set of generic analysis tools that can be applied to Models and Simulations at the Systems Engineering level of fidelity. The tools examine the performance and effectiveness of Sensors;Weapons;and Battle Management, Command, Control, Communications, Computers, and Intelligence ((BMCI)-I-4) systems and equipment. The Measures of Performance (MOPs), Measures of Effectiveness (MOEs) and Measures of Force Effectiveness (MOFEs) were extracted from the Modular Command and Control Structure Paradigm which was developed at the Naval Postgraduate School. The paradigm provides for the development of evaluation criteria (MOPs, MOEs, and MOFEs) in a framework that ensures the traceability of system performance and effectiveness to the system operational requirements as specified in the Operational Requirements Document (ORD). Also, the analysis tools provide insight and valid estimates of numerical measures of the defined system functionality threads, which represent the system's operational requirements as specified in the ORD. The tools are directly transferrable and applicable to test and evaluation exercise events which are conducted in support of the development and acquisition of systems and equipment. Once the levels of system performance have been defined, the Paradigm generates a quantitative database that becomes a useful tool in system tradeoffs and selection. Once the alternative system suites have been defined, the suites can be analyzed in terms of system functionality threads and their corresponding performance capabilities versus cost.

关键词： Naval vessels

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