Tohoku, Japan, Earthquake and Tsunami of 2011: Performance of Structures under Tsunami Loads
Author(s)/Editor(s): Gary Chock, Ian Robertson, David Kriebel, Mathew Francis, Ioan Nistor | Size: 51 MB | Format:PDF | Quality:Original preprint | Publisher: the American Society of Civil Engineers | Year: 2013 | pages: 366 | ISBN: 0784412499
On March 11, 2011, at 2:46 p.m. local time, the Great East Japan Earthquake with moment magnitude 9.0 generated a tsunami of unprecedented height and spatial extent along the northeast coast of the main island of Honshu. The Japanese government estimated that more than 250,000 buildings either collapsed or partially collapsed predominantly from the tsunami. The tsunami spread destruction inland for several kilometres, inundating an area of 525 square kilometres, or 207 square miles. About a month after the tsunami, ASCE’s Structural Engineering Institute sent a Tsunami Reconnaissance Team to Tohoku, Japan, to investigate and document the performance of buildings and other structures affected by the tsunami. For more than two weeks, the team examined nearly every town and city that suffered significant tsunami damage, focusing on buildings, bridges, and coastal protective structures within the inundation zone along the northeast coast region of Honshu. This report presents the sequence of tsunami warning and evacuation, tsunami flow velocities, and debris loading. The authors describe the performance, types of failure, and scour effects for a variety of structures: Additional chapters analyse failure modes utilising detailed field data collection and describe economic impacts and initial recovery efforts. Each chapter is plentifully illustrated with photographs and contains a summary of findings.For structural engineers, the observations and analysis in this report provide critical information for designing buildings, bridges, and other structures that can withstand the effects of tsunami inundation.
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Tohoku, Japan, Earthquake and Tsunami of 2011: Survey of Coastal Structures
Author(s)/Editor(s): Lesley Ewing, P.E., D.CE and Shigeo Takahashi | Size: 7.5 MB | Format:PDF | Quality:Original preprint | Publisher: the American Society of Civil Engineers | Year: 2013 | pages: 116 | ISBN: 0784412693
On March 11, 2011, a magnitude 9.0 earthquake rumbled off the east coast of Japan, followed by a tsunami that generated waves more than 18 meters high. The earthquake and tsunami caused devastation throughout the Tohoku and Sendai regions of Japan, killing nearly 16,000 people and causing damage estimated at more than US$126 billion.
For seven days in May 2011, an ASCE/COPRI Coastal Structures Team investigated the earthquake and tsunami effects specific to engineered coastal structures, coastal landforms, and coastal processes in northeast Japan. Joined by colleagues from Japan's Port and Airport Research Institute, the survey team observed five categories of coastal protection structures: coastal dikes, tsunami seawalls, floodwater gates, breakwaters, and vegetated greenbelts. This report provides background to the field investigation, including an event summary, the tectonic and geologic setting, and the generation, propagation, and runup of the tsunami. It then describes 11 mechanisms causing damage or failure and includes photographs illustrating the effects of each mechanism. Finally, the report presents lessons learned regarding what worked and what didn't and how this knowledge can be used to engineer against future natural disasters. For coastal engineers, structural engineers, geotechnical engineers, and disaster risk managers, the observations and analysis in this report provide critical information for engineering infrastructure that withstands major earthquake and tsunami events.
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Tohoku, Japan, Earthquake and Tsunami of 2011: Survey of Port and Harbor Facilities, Northern Region
Author(s)/Editor(s): Marc Percher | Size: 81 MB | Format:PDF | Quality:Original preprint | Publisher: the American Society of Civil Engineers | Year: 2014 | pages: 416 | ISBN: 0784413185
On March 11, 2011, the largest earthquake ever recorded in Japan struck off the coast of the Tohoku region. This 9.0 magnitude earthquake induced shaking and tsunamis along more than 2000 km of Japanese coastline and damaged port and harbor facilities from metropolitan Tokyo to the northern extent of Honshu. In May 2011, the ASCE-COPRI Port and Harbor Facilities Field Survey Team worked closely with Japan's Ports and Airports Research Institute to conduct extensive field reconnaissance examining the tsunami and earthquake effects specific to port waterfront structures and ancillary components, such as cargo cranes, conveyance systems, and piping equipment. This investigation focused on the design and construction of these structures with an emphasis on the lessons learned from both failures and successes. Information from on-site observations and interviews with facility owners, eyewitnesses, researchers, and government officials are incorporated into this report. The broad area covered, from Soma to Hachinohe in the northern prefectures of Aomori, Iwate, Miyagi, and Fukushima, facilitated the interpretation of damage patterns across the region affected by the earthquake, with a primary goal of distinguishing port damage due to strong ground shaking from that caused by subsequent and significant tsunami inundation. This report highlights field observations and initiates efforts to develop an extensive collection of geotechnical, structural, coastal, and seismological data. Port engineers, structural engineers, and disaster risk managers will find the field observations helpful in highlighting the most prevalent port vulnerabilities and the recommendations useful in improving the seismic performance of port facilities and protecting the lives of port personnel.
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Article/eBook Full Name: Rotation Capacity Evaluation of Column-Tree Type Steel Moment Connection with Bolt-Slip
Author(s): Lee, Kyungkoo; Chae, Bong Su; Kim, Seonwoong;
Publish Date: 2015
Published By: koreascience
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France has become the principal destination for people interested in contemporary architecture. Unashamedly modern buildings have evolved, particularly in historic areas, and have been accepted as contributions to the continuing evolution of city areas. No other European country has achieved such successful integration of the modern and historic.
Modern Architecture in Historic Cities explores the factors which contribute to the presence of contemporary architecture in historic areas. The author focuses on central topics, including: the crucial involvement of professional bodies, such as the Architectes des Bâtiments de France, and their relationship with elected representatives; the resources available in historic areas; mechanisms for design control; the ideological role of heritage and contemporary architecture as symbols of culture and progressiveness; and the public sector’s input in decisionmaking and its commitment to both conservation and the promotion of new architecture.
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The portfolio is the single most important part of every architectural student's education. This book is a complete guide to preparing, compiling and presenting this crucial element of the architecture course.The experienced author team gives practical advice for the creation of the portfolio covering issues including size, storage, layout and order. They go on to guide the student through the various forms a portfolio can take: the Electronic Portfolio, the Academy Portfolio and the Professional Portfolio suggesting different approaches and different media to use in order to create the strongest portfolio possible. The team also presents the best examples from international student portfolios to show the reader their recommendations in practice.
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