Risk-Based Optimization of Design Load on Membrane Structures with Predetermined Service Life
![Thumbnail](/themes/edepositireland/images/white_rectangle.jpeg)
File Type:
PDFItem Type:
Conference PaperDate:
2023Access:
openAccessCitation:
Shono Suzuki, Ryoya Sato, Yasuhiro Mori, Risk-Based Optimization of Design Load on Membrane Structures with Predetermined Service Life, 14th International Conference on Applications of Statistics and Probability in Civil Engineering (ICASP14), Dublin, Ireland, 2023.Download Item:
Abstract:
In recent years, the social needs of buildings with limited service-lives have been increasing for the purpose of efficient use of land leasehold, experimental verification of new construction methods, etc. However, in the current Building Standards Act of Japan, a building with a service life longer than a year is designed in principle as an ordinary building. In order to meet such social needs, a モKigen-tsuki Building,ヤ a building designed with a predetermined service life and conditions of use, and, in principle, disassembled after the expiration of the period of the predetermined service life, has been proposed and Recommendations for design of such buildings was published (AIJ, 2013). Because the possibility that a building with a service life shorter than that of an ordinary building encounters a rare event during its service life is lower, the design load could be reduced as long as the safety level equivalent to that of the ordinary building can be achieved. One of the ideas to achieve the safety level is to execute preliminary preventive cares such as installation of temporary supports against wind and/or snow load on the basis of well-developed weather forecast.
モA membrane structureヤ can be a good candidate of a モKigen-tsuki building,ヤ because its dominant design load is wind or snow. The object of this research is to discuss the merit of designing a membrane structure as aモKigen-tsuki buildingヤ. To achieve this objective, we first constructed a probabilistic model of membrane materials. As the strength of membrane materials generally deteriorate with time, the strength tests have been conducted after several years of installation on buildings, and probabilistic deterioration functions of the membrane material strength are modeled on the basis of the test results. Then we design membrane structures using the analysis software (MAGESTIC) considering the probabilistic model of membrane materials created above; the weight of the steel frame can be reduced by shortening the service lives. Finally, we investigate the cost advantage in terms of expected total lifecycle cost and the optimal time length for the use of membrane material before its replacement.
Description:
PUBLISHEDOther Titles:
14th International Conference on Applications of Statistics and Probability in Civil Engineering(ICASP14)Type of material:
Conference PaperCollections
Series/Report no:
14th International Conference on Applications of Statistics and Probability in Civil Engineering(ICASP14)Availability:
Full text availableMetadata
Show full item recordLicences: