Finite-element modelling of connectors to achieve ductile connections in wood structures

• Mechanical connections in wood structures typically consist of structural members connected with combination of thin-walled steel angle brackets and fasteners in forms of nails or screws. Design of these steel connectors is typically based on short-term load bearing capacities. Observations from experimental testing indicate that both the angle bracket and the fasteners possess properties such the connections can be designed to behave in a ductile manner. This paper presents numerical simulations of ductile angle bracket connections calibrated against experimental results and subsequently validated. Special focus is on single nail behaviour when the jointed timber members are subjected to cyclic loading. Simulations of global behaviour of connections show that acceptable match between the simulation and the experimental results can be achieved despite relatively simple nail model is used for both loading and unloading behaviour.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Samhällsbyggnadsteknik -- Husbyggnad (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Civil Engineering -- Building Technologies (hsv//eng)

Nyckelord

Angle brackets

Full-scale tests

Numerical simulation

Python scripting

Ring nails

Timber connections

Computer software

Fasteners

Finite element method

Numerical models

Thin walled structures

Timber

Unloading

Wooden buildings

Angle bracket

Ductile connection

Full scale tests

Mechanical connections

Ring nail

Steel angle

Thin-walled steels

Wood structure

Python

Byggteknik

Civil engineering

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