Reliability analysis of a glulam beam

The present case study is an example of the use of reliability analysis to asses the failure probability of a tapered glulam beam. This beam is part of a true structure built for a super market in the town of Kokemaki in Finland. The reliability analysis is carried out using the snow load statistics available from the site and on material strength information available from previous experiments. The Eurocode 5 and the Finnish building code are used as the deterministic methods to which the probabilistic method is compared to. The calculations show that the effect of the strength variation is not significant, when the coefficient of variation of the strength is around 15% as usually assumed for glulam. The probability of failure resulting from a deterministic design based on Eurocode 5 is low compared to the target values and lower sections are possible if applying a probabilistic design method. In fire design, if a 60 min resistance is required, this is not the case according to Eurocode 5 design procedures, a higher section would be required. However, a probabilistic based fire analysis results in bounds for the yearly probability of failure which are comparable to the target value and to the values obtained from the normal probabilistic based design. (C) 2006 Elsevier Ltd. All rights reserved

Quality of timber construction:Guidance for buildings and load bearing structures

This study describes briefl y the main contents on aspects for controlling the quality for timber construction regarding the manufacture, the design, the building process and the maintenance process. As this topic is very wide, only some crucial parts are dealt with here. It is a main theme throughout this work that correctly timed decisions at different phases of a building project together with the flowof information is crucial for quality. Guidelines for this decision making are given in templates

Quality of timber construction:Guidance for buildings and load bearing structures

This study describes briefl y the main contents on aspects for controlling the quality for timber construction regarding the manufacture, the design, the building process and the maintenance process. As this topic is very wide, only some crucial parts are dealt with here. It is a main theme throughout this work that correctly timed decisions at different phases of a building project together with the flowof information is crucial for quality. Guidelines for this decision making are given in templates