Fire resistance tests on timber beam-to-column shear connections. (14th March 2016)

• Record Type: Journal Article
• Authors: Palma, Pedro; Frangi, Andrea; Hugi, Erich; Cachim, Paulo; Cruz, Helena
• Is Part Of: Journal of structural fire engineering. Volume 7:Number 1(2016)
• Page Start: 41
• Page End: 57
• Publication Date: 2016-03-14
• Subjects: Fire resistance -- Shear -- Connections -- Tests -- Timber -- Beam-to-column; Fire protection engineering -- Periodicals; 628.92205
• DOI: 10.1108/JSFE-03-2016-004
• Languages: English
• ISSNs: 2040-2317

Abstract

Abstract : Purpose: This paper aims to present the results of an extensive experimental programme on the fire behaviour of timber beam-to-column shear connections, loaded perpendicularly to the grain. Design/methodology/approach: The experimental programme comprised tests at normal temperature and loaded fire resistance tests on beam-to-column connections in shear. Twenty-four full-scale tests at normal temperature were performed covering nine different connection typologies, and 19 loaded fire resistance tests were conducted including 11 connections typologies. Findings: The results of the fire resistance tests show that the tested typologies of steel-to-timber dowelled connections reached more than 30 and even 60 minutes of fire resistance. However, aspects such as a wider gap between the beam and the column, reduced dowel spacing, and the presence of reinforcement with self-drilling screws all have a negative influence on the fire resistance. Originality/value: The experimental programme addressed the fire behaviour of timber beam-to-column shear connections loaded perpendicularly to the grain in a systematic way testing a wide range of common connection typologies significantly enlarging their experimental background.