New Jersey Earthquakes
... of structure that were the major determining factors in the performance of each building. Newer structures, built to the latest construction standards, appeared to perform relatively well, generally ensuring the life safety of occupants. New Jersey's building code has some provisions for earthquake- ...
... of structure that were the major determining factors in the performance of each building. Newer structures, built to the latest construction standards, appeared to perform relatively well, generally ensuring the life safety of occupants. New Jersey's building code has some provisions for earthquake- ...
Earthquakes: Do we ever cause them?
... That might sound a little hard to believe. We’ve all felt the ground shake under our feet when a train goes past, or a heavy truck rushes down a highway, but that is very different from a real earthquake, which can bring buildings crashing down and kill thousands of people. The latest research by sc ...
... That might sound a little hard to believe. We’ve all felt the ground shake under our feet when a train goes past, or a heavy truck rushes down a highway, but that is very different from a real earthquake, which can bring buildings crashing down and kill thousands of people. The latest research by sc ...
What is an earthquake?
... shake low buildings more. • Low frequency surface waves shake high buildings more. • Intensity of shaking also depends on type of subsurface material. • Unconsolidated materials (sand, mud) amplify shaking more than rocks do. • Fine-grained, sensitive materials can lose strength when shaken. ...
... shake low buildings more. • Low frequency surface waves shake high buildings more. • Intensity of shaking also depends on type of subsurface material. • Unconsolidated materials (sand, mud) amplify shaking more than rocks do. • Fine-grained, sensitive materials can lose strength when shaken. ...
Seismological evidence of simultaneous mountain-building and crust-thickening 7.6)
... Three-dimensional P- and S-wave velocity structures in by the Central Weather Bureau in Taipei. A typical seismic the central Taiwan area were inverted by using a tomographic velocity structure across the major part of the study area is method with a circular ray tracing (Lin and Roecker, 1997; pres ...
... Three-dimensional P- and S-wave velocity structures in by the Central Weather Bureau in Taipei. A typical seismic the central Taiwan area were inverted by using a tomographic velocity structure across the major part of the study area is method with a circular ray tracing (Lin and Roecker, 1997; pres ...
(Wed) Locating Earthquakes
... you would want to measure. b) Would you want one or more than one lander? c) If you could only have an orbiter mission to Mars (no landers), what measurements would you want it to make to help you determine whether or not Mars has a molten metal core. [Hint: the measurement will not be the reflected ...
... you would want to measure. b) Would you want one or more than one lander? c) If you could only have an orbiter mission to Mars (no landers), what measurements would you want it to make to help you determine whether or not Mars has a molten metal core. [Hint: the measurement will not be the reflected ...
the world trade center and 9/11
... Findings and Recommendations The most important finding is an admission that no structure could have been reasonably expected to withstand the terrorist attack, and the building’s robustness allowed for a large number of occupants to escape and survive. “The structural damage sustained by each of th ...
... Findings and Recommendations The most important finding is an admission that no structure could have been reasonably expected to withstand the terrorist attack, and the building’s robustness allowed for a large number of occupants to escape and survive. “The structural damage sustained by each of th ...
BAM EARTHQUAKE, IRAN: LESSONS ON THE SEISMIC
... The most dominant structural systems in the Bam region are: • Adobe buildings: built from adobe materials and unfired mud bricks. Most with a vaulted roof system. • Masonry buildings: built from fired bricks or concrete blockwork as the main load bearing system and normally combined with a jack-arch ...
... The most dominant structural systems in the Bam region are: • Adobe buildings: built from adobe materials and unfired mud bricks. Most with a vaulted roof system. • Masonry buildings: built from fired bricks or concrete blockwork as the main load bearing system and normally combined with a jack-arch ...
WESTERN STATES SEISMIC POLICY COUNCIL
... another useful tool for addressing the earthquake hazard. Earthquakes are often described as hazards without warnings, but seismic-network-based early warning systems could provide an alert with sufficient time to implement life safety actions, infrastructure protection, and rapid mitigation of pote ...
... another useful tool for addressing the earthquake hazard. Earthquakes are often described as hazards without warnings, but seismic-network-based early warning systems could provide an alert with sufficient time to implement life safety actions, infrastructure protection, and rapid mitigation of pote ...
Global earthquake prediction experiments
... completely different properties: mean, standard deviation, coefficient of correlation either does not exist or behaves erratically. The stable distributions theory started to be developed only 20 years ago and there are not enough statisticians who sufficiently know it. Zaliapin, Kagan, Schoenberg, ...
... completely different properties: mean, standard deviation, coefficient of correlation either does not exist or behaves erratically. The stable distributions theory started to be developed only 20 years ago and there are not enough statisticians who sufficiently know it. Zaliapin, Kagan, Schoenberg, ...
12660004_COMPDYN_Final.doc (374Kb)
... Conventional capacity design strategy relies on the philosophy of “dissipation with degradation” as seismic energy is dissipated by inelastic deformation. Due to the reliance of this philosophy on inelastic deformations, this incurs heavy damage to the parent structure making it non-functional after ...
... Conventional capacity design strategy relies on the philosophy of “dissipation with degradation” as seismic energy is dissipated by inelastic deformation. Due to the reliance of this philosophy on inelastic deformations, this incurs heavy damage to the parent structure making it non-functional after ...
What is an earthquake?
... Regions within 20 to 50 kilometers of the epicenter will experience about the same intensity of ground shaking However, destruction varies considerably mainly due to the nature of the ground on which the structures are built ...
... Regions within 20 to 50 kilometers of the epicenter will experience about the same intensity of ground shaking However, destruction varies considerably mainly due to the nature of the ground on which the structures are built ...
Experimental Seismic Performance Evaluation of Unreinforced Brick
... Modern seismic codes can improve new and existing buildings through the evaluation of their dynamic response and mechanical performance. Improper design and detailing can make buildings vulnerable to earthquakes. The enormous losses inflicted by the Kashmir earthquake were mainly due to the fact tha ...
... Modern seismic codes can improve new and existing buildings through the evaluation of their dynamic response and mechanical performance. Improper design and detailing can make buildings vulnerable to earthquakes. The enormous losses inflicted by the Kashmir earthquake were mainly due to the fact tha ...
Response of Republic Plaza to Sumatra-Andaman
... recent earthquake were also reported felt in several areas of Singapore. A local newspaper reported that the areas where the tremors were felt are Tanjung Rhu, Marine Parade, Toa Payoh, Siglap and Meyer Road (Today, December 27, 2004). At these locations, the tremors caused no damage. 2. Republic Pl ...
... recent earthquake were also reported felt in several areas of Singapore. A local newspaper reported that the areas where the tremors were felt are Tanjung Rhu, Marine Parade, Toa Payoh, Siglap and Meyer Road (Today, December 27, 2004). At these locations, the tremors caused no damage. 2. Republic Pl ...
Advances in Natural and Applied Sciences
... the region requires knowledge and understanding of both the seismicity and ground motion during earthquakes (Ghosh and Mahajan, 2013). Many factors such as the use of inappropriate placement, construction, and improper construction and inadequate infrastructure, urban design, urban settlements are a ...
... the region requires knowledge and understanding of both the seismicity and ground motion during earthquakes (Ghosh and Mahajan, 2013). Many factors such as the use of inappropriate placement, construction, and improper construction and inadequate infrastructure, urban design, urban settlements are a ...
MS in Structural Engineering Brochure
... covered in undergraduate steel design courses. Topics to be covered in this course include detailed composite deck design, connection design and advanced steel lateral bracing systems. ...
... covered in undergraduate steel design courses. Topics to be covered in this course include detailed composite deck design, connection design and advanced steel lateral bracing systems. ...
Seismic retrofit
Seismic retrofitting is the modification of existing structures to make them more resistant to seismic activity, ground motion, or soil failure due to earthquakes. With better understanding of seismic demand on structures and with our recent experiences with large earthquakes near urban centers, the need of seismic retrofitting is well acknowledged. Prior to the introduction of modern seismic codes in the late 1960s for developed countries (US, Japan etc.) and late 1970s for many other parts of the world (Turkey, China etc.), many structures were designed without adequate detailing and reinforcement for seismic protection. In view of the imminent problem, various research work has been carried out. State-of-the-art technical guidelines for seismic assessment, retrofit and rehabilitation have been published around the world - such as the ASCE-SEI 41 and the New Zealand Society for Earthquake Engineering (NZSEE)'s guidelines. These codes must be regularly updated; the 1994 Northridge earthquake brought to light the brittleness of welded steel frames, for example.The retrofit techniques outlined here are also applicable for other natural hazards such as tropical cyclones, tornadoes, and severe winds from thunderstorms. Whilst current practice of seismic retrofitting is predominantly concerned with structural improvements to reduce the seismic hazard of using the structures, it is similarly essential to reduce the hazards and losses from non-structural elements. It is also important to keep in mind that there is no such thing as an earthquake-proof structure, although seismic performance can be greatly enhanced through proper initial design or subsequent modifications.