Comparative study of wind-induced accelerations in tall timber buildings according to four methods
2021 (English)In: World Conference on Timber Engineering 2021, WCTE 2021, World Conference on Timber Engineering (WCTE) , 2021Conference paper, Published paper (Refereed)
Abstract [en]
The height and the market share of multi-story timber buildings are both rising. During the last two decades, the Architectural and Engineering Construction industry has developed new reliable solutions to provide strength, structural integrity, fire safety and robustness for timber structures used in the mid- and high-rise sectors. According to long-time survey and lab experiments, motion sickness and sopite syndrome are the main adverse effects on the occupants of a wind sensitive building. For tall timber buildings, wind-induced vibrations seem to be a new critical design aspect at much lower heights than for traditional steel-concrete buildings. To guarantee good comfort, the horizontal accelerations at the top of tall timber buildings must be limited. Two methods in the Eurocode for wind actions (EN1991-1-4), procedure 1 in Annex B (EC-B) and procedure 2 in Annex C (EC-C), provide formulas to estimate the along-wind accelerations. The Swedish code advises to follow a method specified in the National Annex to the Eurocode (EKS) and the American ASCE 7-2016 recommend another method. This study gives an overview on the background of the different methods for the evaluation of along-wind accelerations for buildings. Estimated accelerations of several tall timber buildings evaluated according to the different methods are compared and discussed. The scatter of the accelerations estimated with different codes is big and increases the design uncertainty of wind induced response at the top of tall timber buildings
Place, publisher, year, edition, pages
World Conference on Timber Engineering (WCTE) , 2021.
Keywords [en]
Along-wind peak acceleration, Building code, Comfort, Dynamical response, Serviceability, Tall timber buildings, Wind loads, Wind-induced vibrations, Accident prevention, Codes (standards), Competition, Construction industry, Housing, Timber, Uncertainty analysis, Vibrations (mechanical), Comparatives studies, Eurocodes, Peak acceleration, Wind induced vibrations, Wind load, Wind-induced acceleration, Acceleration
National Category
Building Technologies
Identifiers
URN: urn:nbn:se:ri:diva-57965Scopus ID: 2-s2.0-85120725506OAI: oai:DiVA.org:ri-57965DiVA, id: diva2:1626970
Conference
World Conference on Timber Engineering 2021, WCTE 2021, 9 August 2021 through 12 August 2021
Note
Funding text 1: The research leading to these results has received funding from the ForestValue Research Programme which is a transnational research, development and innovation programme jointly funded by national funding organisations within the framework of the ERA-NET Cofund ‘ForestValue – Innovating forest-based bioeconomy.
2022-01-122022-01-122025-09-23Bibliographically approved