Reliability-based optimization of plant precast concrete building systems

Koskisto, O (1997) Reliability-based optimization of plant precast concrete building systems. PhD thesis, Johns Hopkins University, USA.

Abstract

A building is an investment made by owners in anticipation of some return on the investment. There are many trade-offs among initial manufacturing and construction costs, costs of recurring operations and maintenance, and building performance. The building process consists of several stages: planning, design, manufacturing, construction, and utilization. All stages should be considered in evaluating a building investment to obtain a result that is optimal for the entire process. In principle, decisions about a building's design, manufacturing, construction, operation, and maintenance ought to be made in such a way that the building meets all performance requirements over its service life and the total costs incurred over its life cycle are minimized. The completed building must have sufficient reliability against ultimate and serviceability limit states that are specified by the code. There is no assurance that current or proposed limit states design requirements are optimal from a minimum overall cost viewpoint. An improved basis for structural design would be obtained by relating safety and serviceability checking procedures to quality assurance programs for the building process so as to minimize the life cycle cost of structural components or systems. Realistic real life cycle cost data of plant precast concrete building systems are collected and analyzed in this research. Reliability-based life cycle cost analysis is used to assemble the existing information in a rational framework and to utilize it to improve design procedures for precast concrete elements. The decision model gives a more rational basis to the set of safety and serviceability checking requirements used in building design that result in minimum expected life cycle cost, subject to structural reliability and performance constraints.

Item Type: Thesis (Doctoral)
Uncontrolled Keywords: building design; building performance; building process; cost analysis; investment; life cycle; life cycle cost; manufacturing; optimization; precast concrete; quality assurance; reliability; safety; service life; structural design
Index terms: owner, quality assurance program, structural design, structural reliability, cost analysis, service life, building design, life cycle, precast concrete, building system, building process, life cycle cost analysis, quality assurance, construction cost, building performance, life cycle cost, building investment
Subjects: architectural engineering, asset management, economics, building materials, architectural design, quality assurance, financial and cost management, value management, building construction, sociology, research methods, engineering systems, reliability engineering
Topics: Engineering Principles, Cost Management, Business Strategy, Construction Materials, Quality Management, Research Practice, Stakeholder Management, Design Practice, Site Management, Project Management
Descriptive scope: 3 PCA

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