Premium
08.16: Static shear capacity of small‐scaled pin shear connectors
Author(s) -
Wolters Kevin,
Kopp Maik,
Feldmann Markus,
Claßen Martin,
Schäfer Johannes
Publication year - 2017
Publication title -
ce/papers
Language(s) - English
Resource type - Journals
ISSN - 2509-7075
DOI - 10.1002/cepa.241
Subject(s) - shear (geology) , materials science , structural engineering , composite material , geology , engineering
Through the use of high‐strength steel as well as high‐strength (HSC) and ultra‐high‐performance concrete (UHPC) in composite constructions slender, wide spanning and highly sustainable composite surface elements can be implemented for the use in architecturally sophisticated structures. Due to their favourable ratio of strength to weight, the high‐strength concrete and steel allow a significant reduction of the dimensions of load‐bearing elements compared to normal‐strength materials. Thus, for certain fields of application the theoretical thicknesses of concrete chords can be reduced to less than 30 mm. However, for such slender composite structures and concrete chords the applicability of conventional shear connectors like headed studs is no longer given. The systematic connection of the composite cross sections requires novel, small‐scale shear connectors transmitting anchorage and shear forces through the composite joint. Therefore, the focus of the paper is on the local static load‐bearing and slip capacity of the pin‐structures due to shear forces. The paper presents the experimental and numerical results as well as the engineering models with the resulting design equations.