Heavy Laminated Timber Frames with Rigid Three-Dimensional Beam-to-Column Connections

Kasal, Bohumil; Guindos, Pablo; Polocoșer, Tiberiu; Heiduschke, Andreas; Urushadze, Shota; Pospı́šil, Stanislav

doi:10.1061/(asce)cf.1943-5509.0000594

Cited by 27 publications

(9 citation statements)

References 12 publications

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“…The test results showed that the reinforced and retrofitted connections increased capacity by 1.70-and 1.53-fold, respectively, compared with the regular connections under reverse cyclic loading. Kasal et al (2014) reinforced beamto-column connections using self-tapping screws and used hardwood blocks to support the beams. The moment-rotation characteristics of the connections were measured by applying static cyclic loads, and highly linear behavior was observed.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Lateral Resistance of Reinforced Glued-Laminated Timber Post and Beam Structures

Xiong

Liu

Ya³

et al. 2017

Journal of Asian Architecture and Building Engineering

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Nine cyclic tests were conducted on full-scale one-story, one-bay timber post and beam construction specimens to study the lateral resistance of reinforced glued-laminated timber post and beam structures. Two reinforcement methods, wrapping fiber-reinforced polymer (FRP) and implanting self-tapping screws, and two structural systems, simple frame and knee-braced frame, were considered in the experimental tests. Based on the observed experimental phenomena and the test results, the feasibility of the reinforcement was discussed; the contributions of different methods were evaluated; and the seismic performance of the specimens were studied. The results indicated that both reinforcement methods could limit the crack development and improve the strength, stiffness and energy dissipation capacity. The results also showed that the lateral resistance could be significantly improved by retrofitting a failed simple frame with joint reinforcement and a knee-brace, demonstrating that this approach can be applied in engineering practice.

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Section: Introductionmentioning

confidence: 99%

Experimental Study on the Lateral Resistance of Reinforced Glued-Laminated Timber Post and Beam Structures

Xiong

Liu

Ya³

et al. 2017

Journal of Asian Architecture and Building Engineering

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“…Comparing the maximum rotations in the beam-to-column testing, the rotation that was measured in the frames was Ref. [16] investigated the seismic performance of a timber frame with three-dimensional (3D) rigid connections made with inclined self-tapping screws and beech hardwood block at the top and bottom of the beam. To assess the seismic performance, a full-scale one-story frame using these developed connections was tested.…”

Section: Performance Of Moment-resisting Joints In Timber Framesmentioning

confidence: 99%

“…Ref. [16] emphasized that comparisons between the frame testing and the connection tested had to be made carefully because the measurement of these rotations was with slight uncertainty due to variations in the pivot point (center point of rotation).…”

Section: Performance Of Moment-resisting Joints In Timber Framesmentioning

confidence: 99%

Ductile Moment-Resisting Timber Connections: A Review

et al. 2022

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In the last two decades, high-rise timber buildings have been built using the glulam truss system, even with limited openings. Moment-resisting timber frames (MRTF) with semi-rigid beam-to-column connections can be an architecture-friendly way to provide a load-carrying system to vertical and horizontal loads for timber buildings. In these structures, connections of adequate ductility are crucial to ensure robustness and energy dissipation. This paper presents a review of the main types of timber beam–column moment connections with improved ductility and proposes to carry out a ductility assessment of these connections based on the most relevant ductility factors. Joints have a significant influence on the global performance of MRTF, and the application of ductile connections have improved the mechanical parameters of the timber frame. The reinforced bolted slotted-in steel plate and glued-in rods connections have similar mechanical performance, with high rotation capacity and good ultimate moment, but exhibited different failure modes under cyclic loading. The connections were classified within ductility classes. In general, the glued-in steel rods presented better results because of the high influence of steel profiles in the connection yielding. Despite the excellent mechanical behavior, the reinforced bolted slotted-in steel plate connections presented medium ductility values.

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“…The test results showed that the bolted timber connections were able to carry moment load, and the application of the self-tapping screws could improve the ductility of the connection. Kasal et al [5] reinforced beamto-column connections using self-tapping screws and used hardwood blocks to support the beams. The study aimed to seek a solution of a rigid timber joint connection.…”

Section: Introductionmentioning

confidence: 99%

Lateral performance of a semi-rigid timber frame structure: theoretical analysis and experimental study

Liu

Xiong

2018

J Wood Sci

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Semi-rigidness of the joint connections is one of the main characteristics of timber structures. The pin-joint assumption for the semi-rigid joint connections might be not conservative in the timber structural design. In this paper, structural analysis was conducted on a semi-rigid timber portal frame; the formulas were derived in terms of the internal force and the lateral stiffness, and the influence of the semi-rigid connections was discussed. Moreover, experimental tests were performed on three full-scale timber portal frames and five bolted timber connections to study the lateral performance of the frames and the moment resistance of the connections. For consistency, the connections from the portal frames and the connections for bending tests were of the same configuration. Finally, a calculation flowchart of the lateral performance on a semi-rigid frame was presented to verify the derived formulas and to show a framework of the lateral structural design process.

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Heavy Laminated Timber Frames with Rigid Three-Dimensional Beam-to-Column Connections

Cited by 27 publications

References 12 publications

Experimental Study on the Lateral Resistance of Reinforced Glued-Laminated Timber Post and Beam Structures

Experimental Study on the Lateral Resistance of Reinforced Glued-Laminated Timber Post and Beam Structures

Ductile Moment-Resisting Timber Connections: A Review

Lateral performance of a semi-rigid timber frame structure: theoretical analysis and experimental study

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