Fuzzy Discrete Multi-criteria Cost Optimization of Steel Structures

2006 ◽  
pp. 101-123
Keyword(s):  
Cost Optimization ◽  
Steel Structures

scholarly journals Risk-Cost Optimized Maintenance Strategy for Steel Bridge Subjected to Deterioration

2021 ◽  
Vol 14 (1) ◽  
pp. 436
Author(s):  
Le Li ◽  
Mojtaba Mahmoodian ◽  
Alireza Khaloo ◽  
Zhiyan Sun
Keyword(s):  
Failure Modes ◽  
Cost Optimization ◽  
Steel Structures ◽  
Steel Bridge ◽  
Maintenance Strategy ◽  
Total Risk ◽  
Chloride Attack ◽  
Risk Cost ◽  
Structural Engineers ◽  
Asset Managers

This paper aims to develop a deteriorated bridge maintenance strategy that ensures the safe operation of steel structures and minimizes the total risk. Five common failure modes are considered for the deteriorated bridge: flexure, shear, deflection, fatigue failure for girder, and chloride attack for the concrete deck. Time-dependent and system reliability analyses are carried out to find the probability of failure under these failure modes. Risk-cost optimization is then used to determine the maintenance strategy. This method was applied to a working example. It was found that the developed maintenance strategy can predict when, where, and what to maintain for a bridge to ensure its safe and serviceable operation during its lifespan. The proposed methodology can help structural engineers and asset managers repair and maintain bridges under deterioration.

Construction Cost Optimization of Buoyant Steel Structures

1985 ◽  
Vol 1 (04) ◽  
pp. 259-265
Author(s):  
David Baird ◽  
Ian E. Winkle
Keyword(s):  
Cost Estimation ◽  
Cost Optimization ◽  
Steel Structures ◽  
Construction Cost ◽  
Construction Time ◽  
General Method

The need for a rational means of comparing structures in terms of not only weight but also construction time and cost is established. This paper describes a database and methodology used at Glasgow University which is proposed as a general method for cost estimation and optimization. Examples are given to demonstrate the use and capabilities of the proposed method.

COST OPTIMIZATION OF STEEL STRUCTURES

2000 ◽  
Vol 32 (6) ◽  
pp. 777-802 ◽  
Author(s):  
KAMAL C. SARMA ◽  
HOJJAT ADELI
Keyword(s):  
Cost Optimization ◽  
Steel Structures

BIM-based time-cost optimization of a large-span spatial steel structure in an airport terminal building

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Jingyu Yu ◽  
Jingfeng Wang ◽  
Zhengmao Hua ◽  
Xingxing Wang
Keyword(s):  
Optimization Model ◽  
Cost Optimization ◽  
Steel Structure ◽  
Steel Structures ◽  
Information Modeling ◽  
Time Cost ◽  
Aesthetic Quality ◽  
Content Type ◽  
Large Span ◽  
Airport Terminal

Purpose Airports are booming in China, to enlarge their capacities and stimulate economic development. Large-span spatial steel structures are commonly used in the terminal buildings of airport projects. Their advantages include prefabrication, strength, usability, adaptability and aesthetic quality. To manage large-span spatial steel structure projects, building information modeling (BIM) is recommended. Although there are plenty of studies on BIM application in steel structure projects, it is still rare to apply BIM to optimize the schedule and cost of steel structures, especially for airport projects. Design/methodology/approach This paper aims to develop a framework in which BIM and a time-cost optimization model are integrated to optimize construction costs and the duration of large-span spatial steel structure projects. A real case study was conducted to verify the feasibility of the BIM-based time-cost optimization model in an airport terminal building, which was built with a large-span spatial steel structure. Findings The results preliminarily support the reliability of the proposed BIM-based time-cost optimization model. The BIM-based time-cost optimization model will benefit construction planning for professionals and enrich relevant research on the application of BIM in large-span spatial steel structure projects. Originality/value The steel structure is difficult to control budgets and progress. This paper is expected to be adopted for optimizing the time and cost plans for projects involving steel structures in airport terminal buildings.

Sign in / Sign up

Export Citation Format

Share Document