Calibration of simplified safety formats for structural timber design. (15th October 2017)

• Record Type: Journal Article
• Authors: Baravalle, Michele; Mikoschek, Michael; Colling, François; Köhler, Jochen
• Is Part Of: Construction & building materials. Volume 152(2017)
• Page Start: 1051
• Page End: 1058
• Publication Date: 2017-10-15
• Subjects: Simplified safety formats -- Code-calibration -- Timber -- Reliability -- Load-duration effect; Building materials -- Periodicals; 624.18
• DOI: 10.1016/j.conbuildmat.2017.06.155
• Languages: English
• ISSNs: 0950-0618

Abstract

Highlights: A framework for calibrating simplified safety formats is proposed. The increase of construction costs is minimized, without reducing safety. Two simplified safety formats for design of timber structures are proposed. Different failure modes, materials, climates and load scenarios are considered. Safety levels, costs and design simplicity are compared with Eurocodes. Abstract: A framework for calibrating the reliability elements in simplified semi-probabilistic design safety formats is presented. The objective of calibration is to minimize the increase of construction costs, compared to the non-simplified safety format, without reducing the level of structural safety. The framework is utilized for calibrating two simplified safety formats which aim at reducing the number of load combinations relevant in structural timber design. In fact, the load-duration effect makes the design of timber structures more demanding since a larger number of load combinations need to be considered compared with other construction materials.