Ductility aspects of reinforced and non-reinforced timber joints

Blaß, Hans Joachim; Schädle, Patrick

doi:10.1016/j.engstruct.2011.02.001

Cited by 102 publications

(44 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, the building response and energy dissipation occurring before the near-collapse state is not considered applying Equation (1). Furthermore, the building response and energy dissipation occurring before the near-collapse state is not considered applying Equation (1).…”

Section: Preparative Full-scale Test On Three-storey Buildingmentioning

confidence: 99%

See 1 more Smart Citation

SOFIE project – 3D shaking table test on a seven‐storey full‐scale cross‐laminated timber building

Ceccotti

Sandhaas

Okabe³

et al. 2013

Earthq Engng Struct Dyn

307

View full text Add to dashboard Cite

SUMMARY Multi‐storey buildings made of cross‐laminated timber panels (X‐lam) are becoming a stronger and economically valid alternative in Europe compared with traditional masonry or concrete buildings. During the design process of these multi‐storey buildings, also their earthquake behaviour has to be addressed, especially in seismic‐prone areas such as Italy. However, limited knowledge on the seismic performance is available for this innovative massive timber product. On the basis of extensive testing series comprising monotonic and reversed cyclic tests on X‐lam panels, a pseudodynamic test on a one‐storey X‐lam specimen and 1D shaking table tests on a full‐scale three‐storey specimen, a full‐scale seven‐storey building was designed according to the European seismic standard Eurocode 8 and subjected to earthquake loading on a 3D shaking table. The building was designed with a preliminary action reduction factor of three that had been derived from the experimental results on the three‐storey building. The outcomes of this comprehensive research project called ‘SOFIE – Sistema Costruttivo Fiemme’ proved the suitability of multi‐storey X‐lam structures for earthquake‐prone regions. The buildings demonstrated self‐centring capabilities and high stiffness combined with sufficient ductility to avoid brittle failures. The tests provided useful information for the seismic design with force‐based methods as defined in Eurocode 8, that is, a preliminary experimentally based action reduction factor of three was confirmed. Valid, ductile joint assemblies were developed, and their importance for the energy dissipation in buildings with rigid X‐lam panels became evident. The seven‐storey building showed relatively high accelerations in the upper storeys, which could lead to secondary damage and which have to be addressed in future research. Copyright © 2013 John Wiley & Sons, Ltd.

show abstract

Section: Preparative Full-scale Test On Three-storey Buildingmentioning

confidence: 99%

“…[1]). Furthermore, ductility of timber structures can be obtained through a proper design of the joints with mechanical fasteners (e.g.…”

Section: Introductionmentioning

confidence: 99%

SOFIE project – 3D shaking table test on a seven‐storey full‐scale cross‐laminated timber building

Ceccotti

Sandhaas

Okabe³

et al. 2013

Earthq Engng Struct Dyn

307

View full text Add to dashboard Cite

show abstract

“…These joints have high energy absorption capacity, and they are expected to delay or avoid their brittle failure. Many researchers have tried to develop new ductile joints [1][2][3][4]. The ductility can also be found in traditional timber joints.…”

Section: Introductionmentioning

confidence: 99%

Theoretical modeling and experimental study of Japanese “Watari-ago” joints

2015

View full text Add to dashboard Cite

Timber joints used in traditional Japanese constructions have no metal plates or fasteners. Because these joints resist external force by embedment to each member, they show high ductility. The ductile joints get much attention recently. Japanese ''Watari-ago'' joint used in horizontal structure is one such ductile joint. The joint consists of two beams with interlocking notches, which build resistance against in-plane shear forces. In this paper, the mechanical behavior of ''Watari-ago'' joints is studied experimentally and theoretically. Experimental results show that ''Watari-ago'' joints can retain resistance after reaching their yield strength and that mechanical behavior varies depending upon notch shape and size. In theoretical research, a predicting model of mechanical behavior of the joint is developed by applying wooden embedment theory. The model proposed in this study also identifies the size that gives optimal mechanical performance. By numerical calculation on the basis of the model, the authors find it quantitatively that the increase of the sizes of beam width and notch depth has greatly effect on the moment resistance.

show abstract

“…The dependence of the connection ductility from the experimental test may be also inferred from Table 3, where are collected the ductility ratios experimentally obtained for different timber connections [44,48,[51][52]54]. Table 3 may be quite convenient to have an idea of the ductile capacity of timber connections, although the data herein provided should be compared with care, owing to the different specimens, test setups and loading protocols involved in the tests (the reader is referred to the papers quoted in the table for any detail).…”

Section: Influence Of the Load History On The Ductile Behavior Of Conmentioning

confidence: 99%

“…Dowel-type connectors can be used alone or in combination with metal predrilled plates. Joints with dowel-type fasteners are expected to be ductile due to the highly nonlinear behavior of the wood under embedding stresses and the plastic behavior of the steel fasteners in bending [44]. Nevertheless, they can sometimes be affected by sudden and brittle failures like block shear or splitting [45].…”

Section: Crucial Role Of Connectionsmentioning

confidence: 99%

Ductile Behavior of Timber Structures under Strong Dynamic Loads

Porcu¹

2017

Wood in Civil Engineering

View full text Add to dashboard Cite

Due to their comparatively low mass that implies reduced horizontal dynamic loads even during strong earthquakes, wood-made buildings might be a good choice in seismic prone regions. To meet the modern design philosophy requirements, however, such structures should be able to behave in a ductile way under exceptional events. By presenting a brief review of the latest developments in the field, this chapter investigates on when and to what extent historical and modern timber buildings may exhibit a ductile and dissipative behavior. A special focus is given to the crucial role of connections and to the difficulties involved by their mechanical model when carrying out codebased non-linear dynamic analyses. Although a ductile behavior is typically required under strong earthquakes, it is to note that a well-designed ductile structure may also be able to withstand other exceptional events as, for instance, tornadoes or blasts.

show abstract

Ductility aspects of reinforced and non-reinforced timber joints

Cited by 102 publications

References 1 publication

SOFIE project – 3D shaking table test on a seven‐storey full‐scale cross‐laminated timber building

SOFIE project – 3D shaking table test on a seven‐storey full‐scale cross‐laminated timber building

Theoretical modeling and experimental study of Japanese “Watari-ago” joints

Ductile Behavior of Timber Structures under Strong Dynamic Loads

Contact Info

Product

Resources

About