Seismic Performance of Timber–Steel Hybrid Structures. I: Subassembly Testing and Numerical Modeling

Li, Zheng; Wang, Xijun; He, Minjuan; Dong, Wenchen; Dong, Hanlin

doi:10.1061/(asce)st.1943-541x.0002395

Cited by 21 publications

(13 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Studies have shown that under steady uniform pressure, the behavior of the NAO material friction pad to hot‐rolled steel interface exhibited good frictional properties without any significant strength degradation. [ 9,15 ] Two shallow recesses were prefabricated on the contact surface of the outer plate for embedment of the friction pads. Because the arrangement of the recesses already made it hard to peel off the friction pads during sliding, only a small amount of epoxy resin was required to fix the friction pads to the steel plates.…”

Section: Load‐resisting Mechanism Of Sc‐sthsw Systemmentioning

confidence: 99%

“…The results obtained from previous research on the STHSW system indicates that the story shear is simultaneously carried by the steel frame and the infill wood shear walls. [ 2,9 ] Then, the base shear demand of the structure can be expressed by Equation 2:

V_{BaseShear} = \sum_{i = 1}^{n} ((), V_{frame, i} + V_{wall, i}) .

where n is the total story number, V frame, i is the story shear carried by the steel frame, and V wall, i is the story shear carried by the wood shear walls. As the wood shear walls are connected in series with the friction dampers, when the dampers slide, the sum of the shear forces in the wood shear walls is equal to the sum of the shear forces in the dampers.…”

Section: Mechanics Theoretical Analysismentioning

confidence: 99%

“…[ 8,33,34 ] The simulation of friction dampers was done by coupling the uniaxial bilinear material Steel01 and ElasticMultiLinear material in parallel, which could reasonably simulate the four main features of the dampers, that is, initial stiffness, activation point, device locking point, and post‐locking stiffness. [ 9 ] Two twoNodeLink elements were connected in series between the steel beam and the foundation to simulate the friction dampers and the wood walls, respectively. A twoNodeLink element is defined by two nodes having zero or nonzero length.…”

Section: Numerical Modelingmentioning

confidence: 99%

“…[ 5 ] The slotted slip joints were geared with embedded brake lining pads on its inner face, which dissipates energy via friction and motion caused by the shear wall deformation. Subsequently, validation of structural performance for systems with such friction damping devices has been established and improved based on numerical and experimental studies by other researchers such as Loo et al [ 6,7 ] and Li et al [ 8 ] Furthermore, a kind of slip friction damper was used to upgrade the earthquake energy dissipation capacity of the STHSW system by Li et al [ 9 ] and Sun et al [ 10 ] Experimental results showed that the friction damper was very effective in dissipating seismic energy as well as in mitigating the earthquake‐induced damage within the main structural members.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Self‐centering steel–timber hybrid shear wall with slip friction dampers: Theoretical analysis and experimental investigation

Cui

Shu

Zhou

et al. 2020

Structural Design Tall Build

Self Cite

View full text Add to dashboard Cite

Summary An innovative self‐centering steel–timber hybrid shear wall (SC‐STHSW) system is proposed as a promising structural solution for earthquake‐resilient buildings. The SC‐STHSW is composed of posttensioned (PT) steel rocking frame and infill light‐frame wood shear wall. The PT steel frame provides self‐centering capability, whereas the infill wood shear wall improves the lateral stiffness and the load resistance. Meanwhile, friction dampers are assembled into the connections between the steel frame and the infill wall to provide energy dissipation. Theoretical analysis and cyclic loading test were conducted to comprehend the load‐resisting behavior of the proposed SC‐STHSW system, and closed‐form solutions of the moment, shear, and axial force distribution along the length of the steel beam were formulated. Moreover, a nonlinear finite element model was developed, and the model was further used to verify the derived theoretical formulas. Results showed that the SC‐STHSW system was able to undergo large interstory drift without the development of plastic zones in the steel frame members, which resulted in very small residual deformation. The presented experimental and numerical results aim to provide a practical structural solution for high‐performance earthquake‐resilient buildings.

show abstract

Section: Load‐resisting Mechanism Of Sc‐sthsw Systemmentioning

confidence: 99%

V_{BaseShear} = \sum_{i = 1}^{n} ((), V_{frame, i} + V_{wall, i}) .

Section: Mechanics Theoretical Analysismentioning

confidence: 99%

Section: Numerical Modelingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Self‐centering steel–timber hybrid shear wall with slip friction dampers: Theoretical analysis and experimental investigation

Cui

Shu

Zhou

et al. 2020

Structural Design Tall Build

Self Cite

View full text Add to dashboard Cite

show abstract

“…Without sufficient supplementary damping, the timber structures are generally vulnerable to different levels of damages . Experimental results evidenced that the performance of wood structures is highly degraded due to the accumulated damages.…”

Section: The Numerical Model With the Accumulated Damagesmentioning

confidence: 99%

Estimating inelastic drift demands for wood portal frame systems considering accumulated damages

Shu

2017

Structural Design Tall Build

Self Cite

View full text Add to dashboard Cite

Summary As one key to the implementation of the performance‐based design methodologies for wood structures, the performance objectives and their corresponding limit state criteria are usually correlated with the peak (maximum) interstory drift demands. This paper evaluates the inelastic drift demands including the peak drift and the residual drift for the prototype timber portal frame structural elements. Analytical 2D‐framed model representative of the study‐case were subjected to a suite of 50 pulse‐type earthquake ground motions. In addition, an accumulated damage index is added to the inputs of the nonlinear analyses to account for the damage caused by the previous ground excitations. Larger accumulated damages lead to larger inelastic drifts. Strong correlation is revealed among the drift demands, the peak ground accelerations, and the variables characterizing the nonlinear system behavior. Finally, estimation formulas for the peak and residual drift demands are proposed and validated with the simulated results from nonlinear time‐history analyses. Based on the presented formulas, the resilience ratio and the effective elastic drift are further derived to comprehend the nonlinear behavior of such timber made structures.

show abstract

Numerical investigation of lateral behaviour of steel‐timber hybrid frames

Offerman,

Bompa

2023

ce papers

View full text Add to dashboard Cite

This paper examines the response of steel‐timber hybrid (STH) lateral stability systems for medium‐rise buildings. A ten‐storey baseline STH structure was designed to codified procedures and compared with a steel‐concrete composite structure. Detailed numerical models were constructed in which specific constitutive representations were assigned to steel‐timber and timber‐timber connections. Parametric investigations on the STH structure were carried out in which the cross laminated timber panel layups, timber shear wall length, and connection characteristics were modified. The study indicated that the STH structure had larger lateral deformations compared to the steel‐concrete structure, both within code limits. For the same design loads, the reduction in self‐weight from the steel‐concrete structure to the STH structure was 73.1%, whilst the floor depth was reduced by 17.2%, respectively. Parametric studies showed that the lateral response of STHs is generally improved with the effective thickness of the timber infill panel and is influenced by the panel layup. Increasing the shear wall length generally enhances the lateral stiffness, yet the overall performance is reduced with the increase of panel connections. The reduction in self‐weight, member sizes and replacement of the concrete with timber led to a reduction in embodied carbon of more than 32.7% whilst achieving similar structural performance.

show abstract

Seismic Performance of Timber–Steel Hybrid Structures. I: Subassembly Testing and Numerical Modeling

Cited by 21 publications

References 18 publications

Self‐centering steel–timber hybrid shear wall with slip friction dampers: Theoretical analysis and experimental investigation

Self‐centering steel–timber hybrid shear wall with slip friction dampers: Theoretical analysis and experimental investigation

Estimating inelastic drift demands for wood portal frame systems considering accumulated damages

Numerical investigation of lateral behaviour of steel‐timber hybrid frames

Contact Info

Product

Resources

About