Life-cycle reliability estimation of deteriorating RC structures by stochastic interpolation of spatial random fields

2021 ◽  
pp. 140-145
Author(s):  
S. Srivaranun ◽  
K. Masuda ◽  
M. Akiyama ◽  
D. M. Frangopol ◽  
O. Maruyama
Keyword(s):  
Life Cycle ◽  
Random Fields ◽  
Reliability Estimation ◽  
Rc Structures ◽  
Stochastic Interpolation

Seismic Resilience of Deteriorating RC Bridges and Road Networks under Climate Change

2019 ◽  
Author(s):  
Luca Capacci ◽  
Fabio Biondini
Keyword(s):  
Climate Change ◽  
Life Cycle ◽  
Transportation Network ◽  
Road Networks ◽  
Progressive Increase ◽  
Seismic Capacity ◽  
Physical Damage ◽  
Rc Structures ◽  
Deterioration Rate ◽  
Seismic Resilience

<p>This paper investigates the life-cycle seismic resilience of aging road networks with reinforced concrete (RC) bridges under the effects of climate change. The physical damage suffered by the exposed bridges is related to traffic limitations implemented over the network. A probabilistic framework is proposed to aggregate the time-variant seismic capacity assessment of RC structures exposed to chloride-induced corrosion with the traffic response of the transportation network. The life-cycle seismic resilience of a simple road network is evaluated based on the restoration of the network functionality guaranteed by the post-event recovery of the damaged bridge. The results highlight the detrimental effects of the progressive increase in the deterioration rate induced by climate change, impairing the seismic capacity of single bridges and, in turn, the seismic resilience of the overall transportation system.</p>

scholarly journals COMPUTER AIDED SAFETY ANALYSIS OF RAILWAY CONTROL SYSTEMS / KOMPUTEROWE WSPOMAGANIE ANALIZY BEZPIECZEŃSTWA W SYSTEMACH STEROWANIA RUCHEM KOLEJOWYM

2013 ◽  
Vol 26 (1) ◽  
pp. 137-150 ◽  
Author(s):  
Andrzej Lewiński ◽  
Tomasz Perzyński ◽  
Lucyna Bester
Keyword(s):  
Control System ◽  
Life Cycle ◽  
Control Systems ◽  
Electrical Engineering ◽  
Safety Analysis ◽  
Reliability Estimation ◽  
Computer Support ◽  
Final Report ◽  
Simulation Methods ◽  
Computer Aided

Abstract The paper deals with computer support of safety analysis of railway control system corresponding to each stage of its life cycle, especially design, testing and maintenance. It is related to the reliability estimation of actually designed, manufactured or exploited from several years railway control systems. But is possible to analyze with computer support the occurrence of critical situations using FTA method, estimation of probability connected with such situations and verification of obtained results using simulation methods. The paper is final report of research works realized in Electronics&Diagnostics Department in Faculty of Transport and Electrical Engineering UTH in Radom.

scholarly journals Life Cycle Analysis of Strengthening Existing RC Structures with R-PE-UHPFRC

2019 ◽  
Vol 11 (24) ◽  
pp. 6923 ◽  
Author(s):  
Amir Hajiesmaeili ◽  
Francesco Pittau ◽  
Emmanuel Denarié ◽  
Guillaume Habert
Keyword(s):  
Life Cycle ◽  
Reinforced Concrete ◽  
Environmental Impact ◽  
Energy Demand ◽  
High Performance ◽  
Fiber Reinforced Concrete ◽  
Cumulative Energy ◽  
Cumulative Energy Demand ◽  
Rc Structures ◽  
Structural Applications

(PE)-UHPFRC, a novel strain hardening ultra high-performance fiber reinforced concrete (UHPFRC) with low clinker content, using Ultra-High Molecular Weight Polyethylene (UHMW-PE) fibers, was developed for structural applications of rehabilitation. A comprehensive life cycle assessment (LCA) was carried out to study the environmental impact of interventions on an existing bridge using PE-UHPFRC compared with conventional UHPFRC and post-tensioned reinforced concrete methods in three categories of global warming potential (GWP), cumulative energy demand (CED), and ecological scarcity (UBP). The results showed 55% and 29% decreases in the environmental impact of the PE-UHPFRC compared with reinforced concrete and conventional UHPFRC methods, respectively, which highlighted the effectiveness of this material for the rehabilitation/strengthening of structures from the viewpoint of environmental impact.

Sign in / Sign up

Export Citation Format

Share Document