Ductile moment-resistant steel–timber connections

Andreolli, Mauro; Piazza, Maurizio; Tomasi, Roberto; Zandonini, Riccardo

doi:10.1680/stbu.9.00098

Cited by 42 publications

(31 citation statements)

References 7 publications

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“…References [22,23] contain linear regression studies providing average expressions V D /V E = a T F + b where coefficients a and b depend on ζ and μ. The hysteretic energy can be obtained after equivalence Equation (5). This seismic demand in terms of hysteretic energy can be coarsely compared with the requirements of the New Zealand code [56].…”

Section: Seismic Demandmentioning

confidence: 99%

A new steel framing system for seismic protection of timber platform frame buildings. Implementation with hysteretic energy dissipators

Almansa

Segués²,

Cantalapiedra

2014

Earthq Engng Struct Dyn

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SUMMARYThis paper describes a new seismic protection system for timber platform frame buildings, either for new construction or retrofit. The system consists in connecting the timber frame to a steel structure that includes hysteretic energy dissipators designed to absorb most of the seismic input energy thus protecting the timber frame and the other steel members; alternatively, the system might use other types of dissipative devices. The steel structure consists of four steel stacks (located at each of the four façades) and steel collectors embracing each slab; the stacks and the collectors are connected, at each floor level, through the energy dissipators. The steel structure is self-supporting, that is, the timber frame is not affected by horizontal actions and can be designed without accounting for any seismic provision; in turn, the steel members do not participate in the main load-carrying system. The timber-steel interface is designed to avoid any stress concentration in the transfer of horizontal forces and to guarantee that the yielding of the dissipators occurs prior to any timber failure. The energy dissipation capacity of the suggested system is discussed, and an application example on a six-story timber building is presented; this case corresponds to highly demanding conditions because of the relatively large building height and weight, the high local seismicity, and the soft soil condition. This research belongs to a wider project aiming to promote the structural use of timber by improving the seismic capacity of wooden buildings; this research includes experiments and advanced numerical simulation.

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Section: Seismic Demandmentioning

confidence: 99%

A new steel framing system for seismic protection of timber platform frame buildings. Implementation with hysteretic energy dissipators

Almansa

Segués²,

Cantalapiedra

2014

Earthq Engng Struct Dyn

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“…In dowel-type fasteners (e.g. nails, screws, dowels and bolts), ductility is achieved by means of the plastic deformation in metallic connectors [13]. In the current prevalent laminated timber beam-column system, the laminated timber beams and columns are often connected by slotted-in bolted joints, which is the type of connection presented in this study.…”

Section: Introductionmentioning

confidence: 99%

Theoretical Evaluation of Moment Resistance for Bolted Timber Connections

Guo

Shu

2019

MATEC Web Conf.

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Timber construction is nowadays becoming more and more favorable due to multiple advantages. In this paper, the connection type and material of timber building were first highlighted. Then, the bolted joints with slotted-in steel plates were systematically tested and analyzed. A typical slotted-in bolted glulam connection was simulated using the software Abaqus. Furthermore, a few important design variables were measured and used to numerically estimate the embedment strength, the shear force per plane, and the ultimate moment capacity of the connections. At last, multiple configurations of joint design were compared in the paper, and a parametric design was made. The results were systematically explained.

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“…Grouped into the category of improvement of moment resisting framed structures are works by: Andreolli et al (2011), Closen (2012), Humbert et al (2014, Komatsu et al (2014), Gohlich (2015 and Negrao et al (2016). Grouped into the category of improvement of braced framed structures are works by: Tjahyadi (2002), Andreolli et al (2011), andGilbert (2016). In both moment and braced framed systems, initial development was focused on either reducing seismic load on the SFRS or improving the brittle connections of heavy timber elements.…”

Section: Previous Combined Timber-steel and Timber-concrete Sfrsmentioning

confidence: 99%

Fragility Assessment of Combined Heavy Timber-Steel Bracing System Through Hybrid Simulation

Miller¹

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This study performs a fragility assessment of a combined heavy timber-steel friction braced framing system through hybrid testing. Hybrid simulation is an innovative testing method that combines analytical modeling with experimental testing utilizing the unique advantages that each has to offer. In a hybrid test a large portion of the structure is modeled analytically while critical structural elements, whose behaviour is expected to be highly nonlinear and thus difficult to capture analytically, are physically tested in the laboratory. In this study, one bottom storey bay of a 7 storey prototype structure is physically tested in the laboratory while the remaining lower bays and the upper 6 storeys are modeled numerically in OpenSees. One hundred and sixty five hybrid tests are performed through incremental dynamic analysis and fragility curves are developed to estimate the probability of damage at varying seismic intensities. The prototype structure is assessed at various performance levels including design and maximum credible hazard levels. The results from the hybrid test are compared with the results from the purely analytical simulation to assess the accuracy of the current finite element modeling techniques. Results show good agreement up to 2.0 percent maximum interstorey drift. The combined heavy-timber steel seismic force resisting system containing friction braces as the primary source of lateral resistance is an effective means of reducing seismic damage to this type of structure. The modeling system exhibits predictable behaviour and experimental results indicate the model is conservative.iii extend a special thanks to Josh Woods and Said Said for their countless hours of help in Carleton University's structures laboratory through the experimental program. iv 113 Research Council, 2011) limit is 2.5%. Based on the results presented, the structure had a 4% chance of reaching the collapse prevention performance category and an 87% chance of reaching the life safety performance category. Chapter 6 will compare results of the experimental IDA and it's fragility curves with these results.

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Ductile moment-resistant steel–timber connections

Cited by 42 publications

References 7 publications

A new steel framing system for seismic protection of timber platform frame buildings. Implementation with hysteretic energy dissipators

A new steel framing system for seismic protection of timber platform frame buildings. Implementation with hysteretic energy dissipators

Theoretical Evaluation of Moment Resistance for Bolted Timber Connections

Fragility Assessment of Combined Heavy Timber-Steel Bracing System Through Hybrid Simulation

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