scholarly journals Motion-based design approach for a novel variable friction cladding connection used in wind hazard mitigation

2019 ◽  
Vol 181 ◽  
pp. 397-412 ◽  
Author(s):  
Yongqiang Gong ◽  
Liang Cao ◽  
Simon Laflamme ◽  
James Ricles ◽  
Spencer Quiel ◽  
...  
Keyword(s):  
Hazard Mitigation ◽  
Design Approach ◽  
Wind Hazard ◽  
Variable Friction ◽  
Friction Cladding

What is the Economics of Wind Hazard Mitigation?

2016 ◽  
Vol 11 (1) ◽  
Author(s):  
Pataya Scott ◽  
Daan Liang
Keyword(s):  
United States ◽  
Hazard Mitigation ◽  
The United States ◽  
Economic Losses ◽  
Policy Makers ◽  
Loss Of Life ◽  
Peace Of Mind ◽  
Wind Hazard ◽  
Extreme Winds

AbstractTornadoes, hurricanes, and other extreme winds cause deaths, injuries, and millions, if not billions, of dollars in damages every year in the United States. Mitigation is necessary to reduce the loss of life, anxiety and suffering, and economic losses. But how much are people willing to invest in their peace of mind? Policy makers typically use the range of $1 million to $10 million per life saved to determine whether a policy that would save lives should be implemented. Individuals have shown that they are willing to pay more for homes with upgrades for mitigation and safety even though they would have no insurance incentive and it is likely that the added cost only affords them peace of mind.

scholarly journals Numerical verification of variable friction cladding connection for multihazard mitigation

2020 ◽  
pp. 107754632092393
Author(s):  
Yongqiang Gong ◽  
Liang Cao ◽  
Simon Laflamme ◽  
James Ricles ◽  
Spencer Quiel ◽  
...  
Keyword(s):  
Sliding Friction ◽  
Design Procedure ◽  
Design Parameters ◽  
Numerical Verification ◽  
Structural System ◽  
Passive Energy Dissipation ◽  
Variable Friction ◽  
Friction Cladding ◽  
And Performance ◽  
Selection Of

The motion of cladding systems can be leveraged to mitigate natural and man-made hazards. The literature counts various examples of connections enhanced with passive energy dissipation capabilities at connections. However, because such devices are passive, their mitigation performance is typically limited to specific excitations. The authors have recently proposed a novel variable friction cladding connection capable of mitigating hazards semi-actively. The variable friction cladding connection is engineered to transfer lateral forces from the cladding element to the structural system. Its variation in friction force is generated by a toggle-actuated variable normal force applied onto sliding friction plates. In this study, a multiobjective motion-based design methodology integrating results from the previous work is proposed to leverage the variable friction cladding connection for nonsimultaneous wind, seismic, and blast hazard mitigation. The procedure starts with the quantification of each hazard and performance objectives. It is followed by the selection of dynamic parameters enabling prescribed performance under wind and seismic loads, after which an impact rubber bumper is designed to satisfy motion requirements under blast. Last, the peak building responses are computed and iterations conducted on the design parameters on the satisfaction of the motion objectives. The motion-based design procedure is verified through numerical simulations on two example buildings subjected to the three nonsimultaneous hazards. The performance of the variable friction cladding connection is also assessed and compared against different control cases. Results show that the motion-based design procedure yields a conservative design approach in meeting all of the motion requirements and that the variable friction cladding connection performs significantly well at mitigating vibrations.

Risk Assessment and Wind Hazard Mitigation of Power Distribution Poles

2014 ◽  
pp. 407-428
Author(s):  
Yue Li ◽  
Mark G. Stewart ◽  
Sigridur Bjarnadottir
Keyword(s):  
Risk Assessment ◽  
Power Distribution ◽  
Hazard Mitigation ◽  
Wind Hazard

scholarly journals Analytical Framework for Homeowner-Focused Computational Cost-Benefit Mitigation Decision Making

2021 ◽  
Vol 6 ◽  
Author(s):  
Fatemeh Orooji ◽  
Carol J. Friedland
Keyword(s):  
Decision Making ◽  
Hazard Mitigation ◽  
Cost Benefit ◽  
The United States ◽  
Economic Benefits ◽  
Decision Making Process ◽  
Economic Decision Making ◽  
Wind Hazard ◽  
Building Characteristics

As a result of increasing windstorm losses in the United States over the past 50 years, a variety of residential wind hazard mitigation strategies have been recommended. Wind hazard mitigation undoubtedly reduces windstorm losses; however, little customized information is available to support the economic decision-making process for individual stakeholders, especially at the consumer level. Therefore, there is a need for decision support tools to calculate, evaluate, and present the economic benefits of mitigation over variable decision-making time horizons for unique building characteristics in specific geographical locations. This paper presents a cost-benefit computational decision-making recommendation framework that evaluates and presents the cost effectiveness of mitigation, customized based on location, years of interest, and building characteristics. The decision-making framework consists of two cores. The user-independent core and user-dependent core which consists of eight steps, divided into four subprocesses: (1) data acquisition, (2) data evaluation, (3) cost-benefit calculation, and (4) results comparison and decision making. To demonstrate the framework, a wood-framed single-family home in light suburban terrain in Golden Meadow, Louisiana, is used as a case study, considering retrofit mitigation with a $15,000 budget and a decision-making time horizon of 30 years. The case study provides six mitigation options, with cost ranging between approximately $2,000 and $15,000 and net benefit/cost ratios ranging from 2.4 to 13. Once fully implemented in a decision making information tool, the developed mitigation recommendation framework will provide valuable information that can be used by home designers, builders, owners, and other stakeholders to better understand the economic facets of wind hazard mitigation, providing critical information as part of the overall decision-making process.

scholarly journals Proposal for wind hazard mitigation

2005 ◽  
Vol 2005 (105) ◽  
pp. 423-424 ◽  
Author(s):  
Yukio TAMURA
Keyword(s):  
Hazard Mitigation ◽  
Wind Hazard

Variable friction cladding connection for seismic mitigation

2019 ◽  
Vol 189 ◽  
pp. 243-259 ◽  
Author(s):  
Yongqiang Gong ◽  
Liang Cao ◽  
Simon Laflamme ◽  
James Ricles ◽  
Spencer Quiel ◽  
...  
Keyword(s):  
Variable Friction ◽  
Friction Cladding ◽  
Seismic Mitigation
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