The Experts below are selected from a list of 41565 Experts worldwide ranked by ideXlab platform
Chungche Chou - One of the best experts on this subject based on the ideXlab platform.
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performance evaluation of shear links and orthotropic bridge deck panels for the new san francisco oakland bay bridge
Earthquake Engineering & Structural Dynamics, 2005Co-Authors: Chiaming Uang, Frieder Seible, Cole C Mcdaniel, Chungche ChouAbstract:This paper presents results from testing and the associated analytical studies of steel shear links and orthotropic bridge decks to support the design of the new East Span for the San Francisco-Oakland Bay Bridge. Cyclic testing of full-scale built-up links showed that the specimens were able to reach an inelastic rotation more than twice that which would be produced from a 1500-year Safety Evaluation Earthquake Event. Nevertheless, brittle fracture occurred before the inelastic design rotation capacity, as specified in the AISC Seismic Provisions, was developed. Based on a parametric study, a modification to the welding details was proposed, which proved to be effective in prEventing this type of fracture in a subsequent testing program. Monotonic testing of two reduced-scale orthotropic bridge deck panels, one stiffened with closed ribs and another one with open ribs, also showed that these specimens could develop a compression capacity greater than that which would be produced by the design Earthquake. The post-buckling behavior was associated with the buckling direction and the type of ribs.
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performance evaluation of shear links and orthotropic bridge deck panels for the new san francisco oakland bay bridge
Earthquake Engineering & Structural Dynamics, 2005Co-Authors: Chiaming Uang, Frieder Seible, Cole C Mcdaniel, Chungche ChouAbstract:This paper presents results from testing and the associated analytical studies of steel shear links and orthotropic bridge decks to support the design of the new East Span for the San Francisco–Oakland Bay Bridge. Cyclic testing of full-scale built-up links showed that the specimens were able to reach an inelastic rotation more than twice that which would be produced from a 1500-year Safety Evaluation Earthquake Event. Nevertheless, brittle fracture occurred before the inelastic design rotation capacity, as specified in the AISC Seismic Provisions, was developed. Based on a parametric study, a modification to the welding details was proposed, which proved to be effective in prEventing this type of fracture in a subsequent testing program. Monotonic testing of two reduced-scale orthotropic bridge deck panels, one stiffened with closed ribs and another one with open ribs, also showed that these specimens could develop a compression capacity greater than that which would be produced by the design Earthquake. The post-buckling behavior was associated with the buckling direction and the type of ribs. Copyright © 2005 John Wiley & Sons, Ltd.
Chiaming Uang - One of the best experts on this subject based on the ideXlab platform.
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performance evaluation of shear links and orthotropic bridge deck panels for the new san francisco oakland bay bridge
Earthquake Engineering & Structural Dynamics, 2005Co-Authors: Chiaming Uang, Frieder Seible, Cole C Mcdaniel, Chungche ChouAbstract:This paper presents results from testing and the associated analytical studies of steel shear links and orthotropic bridge decks to support the design of the new East Span for the San Francisco-Oakland Bay Bridge. Cyclic testing of full-scale built-up links showed that the specimens were able to reach an inelastic rotation more than twice that which would be produced from a 1500-year Safety Evaluation Earthquake Event. Nevertheless, brittle fracture occurred before the inelastic design rotation capacity, as specified in the AISC Seismic Provisions, was developed. Based on a parametric study, a modification to the welding details was proposed, which proved to be effective in prEventing this type of fracture in a subsequent testing program. Monotonic testing of two reduced-scale orthotropic bridge deck panels, one stiffened with closed ribs and another one with open ribs, also showed that these specimens could develop a compression capacity greater than that which would be produced by the design Earthquake. The post-buckling behavior was associated with the buckling direction and the type of ribs.
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performance evaluation of shear links and orthotropic bridge deck panels for the new san francisco oakland bay bridge
Earthquake Engineering & Structural Dynamics, 2005Co-Authors: Chiaming Uang, Frieder Seible, Cole C Mcdaniel, Chungche ChouAbstract:This paper presents results from testing and the associated analytical studies of steel shear links and orthotropic bridge decks to support the design of the new East Span for the San Francisco–Oakland Bay Bridge. Cyclic testing of full-scale built-up links showed that the specimens were able to reach an inelastic rotation more than twice that which would be produced from a 1500-year Safety Evaluation Earthquake Event. Nevertheless, brittle fracture occurred before the inelastic design rotation capacity, as specified in the AISC Seismic Provisions, was developed. Based on a parametric study, a modification to the welding details was proposed, which proved to be effective in prEventing this type of fracture in a subsequent testing program. Monotonic testing of two reduced-scale orthotropic bridge deck panels, one stiffened with closed ribs and another one with open ribs, also showed that these specimens could develop a compression capacity greater than that which would be produced by the design Earthquake. The post-buckling behavior was associated with the buckling direction and the type of ribs. Copyright © 2005 John Wiley & Sons, Ltd.
Cole C Mcdaniel - One of the best experts on this subject based on the ideXlab platform.
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performance evaluation of shear links and orthotropic bridge deck panels for the new san francisco oakland bay bridge
Earthquake Engineering & Structural Dynamics, 2005Co-Authors: Chiaming Uang, Frieder Seible, Cole C Mcdaniel, Chungche ChouAbstract:This paper presents results from testing and the associated analytical studies of steel shear links and orthotropic bridge decks to support the design of the new East Span for the San Francisco-Oakland Bay Bridge. Cyclic testing of full-scale built-up links showed that the specimens were able to reach an inelastic rotation more than twice that which would be produced from a 1500-year Safety Evaluation Earthquake Event. Nevertheless, brittle fracture occurred before the inelastic design rotation capacity, as specified in the AISC Seismic Provisions, was developed. Based on a parametric study, a modification to the welding details was proposed, which proved to be effective in prEventing this type of fracture in a subsequent testing program. Monotonic testing of two reduced-scale orthotropic bridge deck panels, one stiffened with closed ribs and another one with open ribs, also showed that these specimens could develop a compression capacity greater than that which would be produced by the design Earthquake. The post-buckling behavior was associated with the buckling direction and the type of ribs.
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performance evaluation of shear links and orthotropic bridge deck panels for the new san francisco oakland bay bridge
Earthquake Engineering & Structural Dynamics, 2005Co-Authors: Chiaming Uang, Frieder Seible, Cole C Mcdaniel, Chungche ChouAbstract:This paper presents results from testing and the associated analytical studies of steel shear links and orthotropic bridge decks to support the design of the new East Span for the San Francisco–Oakland Bay Bridge. Cyclic testing of full-scale built-up links showed that the specimens were able to reach an inelastic rotation more than twice that which would be produced from a 1500-year Safety Evaluation Earthquake Event. Nevertheless, brittle fracture occurred before the inelastic design rotation capacity, as specified in the AISC Seismic Provisions, was developed. Based on a parametric study, a modification to the welding details was proposed, which proved to be effective in prEventing this type of fracture in a subsequent testing program. Monotonic testing of two reduced-scale orthotropic bridge deck panels, one stiffened with closed ribs and another one with open ribs, also showed that these specimens could develop a compression capacity greater than that which would be produced by the design Earthquake. The post-buckling behavior was associated with the buckling direction and the type of ribs. Copyright © 2005 John Wiley & Sons, Ltd.
Frieder Seible - One of the best experts on this subject based on the ideXlab platform.
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performance evaluation of shear links and orthotropic bridge deck panels for the new san francisco oakland bay bridge
Earthquake Engineering & Structural Dynamics, 2005Co-Authors: Chiaming Uang, Frieder Seible, Cole C Mcdaniel, Chungche ChouAbstract:This paper presents results from testing and the associated analytical studies of steel shear links and orthotropic bridge decks to support the design of the new East Span for the San Francisco-Oakland Bay Bridge. Cyclic testing of full-scale built-up links showed that the specimens were able to reach an inelastic rotation more than twice that which would be produced from a 1500-year Safety Evaluation Earthquake Event. Nevertheless, brittle fracture occurred before the inelastic design rotation capacity, as specified in the AISC Seismic Provisions, was developed. Based on a parametric study, a modification to the welding details was proposed, which proved to be effective in prEventing this type of fracture in a subsequent testing program. Monotonic testing of two reduced-scale orthotropic bridge deck panels, one stiffened with closed ribs and another one with open ribs, also showed that these specimens could develop a compression capacity greater than that which would be produced by the design Earthquake. The post-buckling behavior was associated with the buckling direction and the type of ribs.
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performance evaluation of shear links and orthotropic bridge deck panels for the new san francisco oakland bay bridge
Earthquake Engineering & Structural Dynamics, 2005Co-Authors: Chiaming Uang, Frieder Seible, Cole C Mcdaniel, Chungche ChouAbstract:This paper presents results from testing and the associated analytical studies of steel shear links and orthotropic bridge decks to support the design of the new East Span for the San Francisco–Oakland Bay Bridge. Cyclic testing of full-scale built-up links showed that the specimens were able to reach an inelastic rotation more than twice that which would be produced from a 1500-year Safety Evaluation Earthquake Event. Nevertheless, brittle fracture occurred before the inelastic design rotation capacity, as specified in the AISC Seismic Provisions, was developed. Based on a parametric study, a modification to the welding details was proposed, which proved to be effective in prEventing this type of fracture in a subsequent testing program. Monotonic testing of two reduced-scale orthotropic bridge deck panels, one stiffened with closed ribs and another one with open ribs, also showed that these specimens could develop a compression capacity greater than that which would be produced by the design Earthquake. The post-buckling behavior was associated with the buckling direction and the type of ribs. Copyright © 2005 John Wiley & Sons, Ltd.
Alessandro Fasso - One of the best experts on this subject based on the ideXlab platform.
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a statistical approach to crowdsourced smartphone based Earthquake early warning systems
Stochastic Environmental Research and Risk Assessment, 2017Co-Authors: Francesco Finazzi, Alessandro FassoAbstract:The Earthquake Network research project implements a crowdsourced Earthquake early warning system based on smartphones. Smartphones, which are made available by the global population, exploit the Internet connection to report a signal to a central server every time a vibration is detected by the on-board accelerometer sensor. This paper introduces a statistical approach for the detection of Earthquakes from the data coming from the network of smartphones. The approach allows to handle a dynamic network in which the number of active nodes constantly changes and where nodes are heterogeneous in terms of sensor sensibility and transmission delay. Additionally, the approach allows to keep the probability of false alarm under control. The statistical approach is applied to the data collected by three subnetworks related to the cities of Santiago (Chile), Iquique (Chile) and Kathmandu (Nepal). The detection capabilities of the approach are discussed in terms of Earthquake magnitude and detection delay. A simulation study is carried out in order to link the probability of detection and the detection delay to the behaviour of the network under an Earthquake Event.
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a statistical approach to crowdsourced smartphone based Earthquake early warning systems
arXiv: Applications, 2015Co-Authors: Francesco Finazzi, Alessandro FassoAbstract:The Earthquake Network research project implements a crowdsourced Earthquake early warning system based on smartphones. Smartphones, which are made available by the global population, exploit the Internet connection to report a signal to a central server every time a vibration is detected by the on-board accelerometer sensor. This paper introduces a statistical approach for the detection of Earthquakes from the data coming from the network of smartphones. The approach allows to handle a dynamic network in which the number of active nodes constantly changes and where nodes are heterogeneous in terms of sensor sensibility and transmission delay. Additionally, the approach allows to keep the probability of false alarm under control. The statistical approach is applied to the data collected by three subnetworks related to the cities of Santiago de Chile, Iquique (Chile) and Kathmandu (Nepal). The detection capabilities of the approach are discussed in terms of Earthquake magnitude and detection delay. A simulation study is carried out in order to link the probability of detection and the detection delay to the behaviour of the network under an Earthquake Event.
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a statistical approach to crowdsourced smartphone based Earthquake early warning systems
arXiv: Applications, 2015Co-Authors: Francesco Finazzi, Alessandro FassoAbstract:The Earthquake Network research project implements a crowdsourced Earthquake early warning system based on smartphones. Smartphones, which are made available by the global population, exploit the Internet connection to report a signal to a central server every time a vibration is detected by the on-board accelerometer sensor. This paper introduces a statistical approach for the detection of Earthquakes from the data coming from the network of smartphones. The approach allows to handle a dynamic network in which the number of active nodes constantly changes and where nodes are heterogeneous in terms of sensor sensibility and transmission delay. Additionally, the approach allows to keep the probability of false alarm under control. The statistical approach is applied to the data collected by three subnetworks related to the cities of Santiago de Chile, Iquique (Chile) and Kathmandu (Nepal). The detection capabilities of the approach are discussed in terms of Earthquake magnitude and detection delay. A simulation study is carried out in order to link the probability of detection and the detection delay to the behaviour of the network under an Earthquake Event.
