Bridge Deck Management System with Integrated Life-Cycle Cost Optimization

2004 ◽  
Vol 1866 (1) ◽  
pp. 44-50 ◽  
Author(s):  
Tarek Hegazy ◽  
Emad Elbeltagi ◽  
Hatem El-Behairy
Keyword(s):  
Life Cycle ◽  
Management System ◽  
Life Cycle Cost ◽  
Bridge Deck ◽  
Cost Optimization

scholarly journals A Comprehensive Life-Cycle Cost Analysis Approach Developed for Steel Bridge Deck Pavement Schemes

Coatings ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 565
Author(s):  
Changbo Liu ◽  
Zhendong Qian ◽  
Yang Liao ◽  
Haisheng Ren
Keyword(s):  
Life Cycle ◽  
Life Cycle Cost ◽  
Bridge Deck ◽  
Analysis Approach ◽  
Steel Bridge ◽  
User Cost ◽  
Construction Quality ◽  
Concrete System ◽  
Traffic Conditions ◽  
Bridge Deck Pavement

This study aims to evaluate the economy of a steel bridge deck pavement scheme (SBDPS) using a comprehensive life-cycle cost (LCC) analysis approach. The SBDPS are divided into the “epoxy asphalt concrete system”(EA system) and“ Gussasphalt concrete system”(GA system) according to the difference in the material in the lower layer of the SBDPS. A targeted LCC checklist, including manager cost and user cost was proposed, and a Markov-based approach was applied to establish a life-cycle performance model with clear probability characteristics for SBDPS. Representative traffic conditions were designed using a uniform design method, and the LCC of SBDPS under representative traffic conditions and different credibility (construction quality as a random factor) was compared. The reliability of the LCC analysis approach was verified based on the uncertainty analysis method. Based on an expert-scoring approach, a user cost weight was obtained to ensure it is considered reasonably in the LCC analysis. Compared with the cumulative traffic volume, the cumulative equivalent single axle loads (CESAL) have a closer relationship with the LCC. The GA system has better LCC when the CESAL is less, while the EA system is just the opposite. The breaking point of CESAL for the LCC of the EA system and the GA system is 15 million times. The LCC analysis of SBDPS should consider the influence of random factors such as construction quality. The comprehensive LCC analysis approach in this paper can provide suggestions for bridge-management departments to make a reasonable selection on SBDPS.

Life cycle cost optimization of biofuel supply chains under uncertainties based on interval linear programming

2015 ◽  
Vol 187 ◽  
pp. 6-13 ◽  
Author(s):  
Jingzheng Ren ◽  
Liang Dong ◽  
Lu Sun ◽  
Michael Evan Goodsite ◽  
Shiyu Tan ◽  
...  
Keyword(s):  
Linear Programming ◽  
Life Cycle ◽  
Supply Chains ◽  
Life Cycle Cost ◽  
Cost Optimization ◽  
Interval Linear Programming ◽  
Interval Linear

FRP bridge deck life cycle cost analyzer

2008 ◽  
pp. 883-888
Author(s):  
Hota GangaRao ◽  
Robert Creese ◽  
Sidharta Sahirman
Keyword(s):  
Life Cycle ◽  
Life Cycle Cost ◽  
Bridge Deck ◽  
Frp Bridge Deck

An innovative Information System for Life Cycle Cost Optimization

2004 ◽  
Author(s):  
Giuseppe F. De Luca ◽  
Marco Giannetti ◽  
Ennio Guarino ◽  
Roberto Ibba
Keyword(s):  
Information System ◽  
Life Cycle ◽  
Life Cycle Cost ◽  
Cost Optimization

Reliability based life cycle cost optimization for underground pipeline networks

2014 ◽  
Vol 43 ◽  
pp. 32-40 ◽  
Author(s):  
Kong Fah Tee ◽  
Lutfor Rahman Khan ◽  
Hua Peng Chen ◽  
Amir M. Alani
Keyword(s):  
Life Cycle ◽  
Life Cycle Cost ◽  
Cost Optimization ◽  
Underground Pipeline ◽  
Pipeline Networks

The Influence of Engine Characteristics on Patrol Aircraft Life Cycle Cost Optimization

1982 ◽  
Author(s):  
A. J. Schuetz
Keyword(s):  
Life Cycle ◽  
Life Cycle Cost ◽  
High Speed ◽  
Cost Optimization ◽  
Life Cycle Costs ◽  
Design Constraints ◽  
Performance Requirements ◽  
Aircraft Performance ◽  
Antisubmarine Warfare ◽  
Flight Profile

A conceptual design study has been conducted for an all-new, land-based patrol aircraft for the U.S. Navy. The selected propulsion system was a conceptual high-speed turboprop. An antisubmarine warfare mission was chosen for the design flight profile. Probable peacetime utilization was postulated so that the engine duty cycle could be estimated. Aircraft designs were optimized for minimum takeoff gross weight (TOGW) and for minimum life cycle cost (LCC). It was shown that the aircraft performance requirements and design constraints bound the optimization process so tightly that the same point design is obtained for both TOGW and LCC criteria. The contribution of the engine costs to the overall life cycle costs was examined. The sensitivity of the aircraft optimization to the engine characteristics — specific fuel consumption (SFC), length, diameter, and cost — was analyzed. It was determined that SFC is the most significant engine characteristic.

Cost optimization of concrete bridge infrastructure

2003 ◽  
Vol 30 (5) ◽  
pp. 841-849 ◽  
Author(s):  
Mostafa A Hassanain ◽  
Robert E Loov
Keyword(s):  
Life Cycle ◽  
Life Cycle Cost ◽  
High Performance ◽  
High Performance Concrete ◽  
Cost Optimization ◽  
Concrete Bridges ◽  
Concrete Bridge ◽  
Analysis And Design ◽  
Prestressed Girders ◽  
Advanced Analysis

Recent surveys have indicated that between 30% and 40% of all bridges in North America are in various states of deterioration. Funding is limited owing to the existence of other deficient components of the transportation infrastructure. It is clear, therefore, that the return on the available funding needs to be maximized. This paper presents a review of publications on cost optimization of concrete bridge components and systems and then continues with a review of the state-of-the-art in life-cycle cost (LCC) analysis and design of concrete bridges. The main objective of the paper is to encourage bridge engineers to move towards the increased use of advanced analysis and design optimization methods.Key words: bridge, concrete, cost, high-performance concrete, infrastructure, life-cycle cost, optimization, prestressed girders, reliability.

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