Lateral Performance of Cross-laminated Timber Shear Walls: Analytical and Numerical Investigations

Modular and Offsite Construction (MOC) Summit Proceedings ◽

10.29173/mocs96 ◽

2019 ◽

pp. 213-218

Author(s):

Md Shahnewaz ◽

Thomas Tannert ◽

Marjan Popovski

Keyword(s):

Parametric Study ◽

Experimental Validation ◽

Analytical Procedure ◽

Shear Walls ◽

Finite Element Models ◽

Seismic Loads ◽

Viable Option ◽

Cross Laminated Timber ◽

Type Construction ◽

Timber Shear Walls

Cross-laminated timber (CLT) is becoming a viable option for mid-rise buildings in North America. CLT walls are very effective in resisting lateral forces resulting from wind and seismic loads, yet no standard provisions are available to estimate the resistance of CLT shear walls under lateral loading. The present research investigated CLT shear wall’s performance by evaluating the preferred kinematic rocking behaviour. An analytical procedure was proposed to estimate the resistance of CLT shear walls in a platform type construction. Finite element models of CLT shear with various brackets and hold-downs connections were developed. The models were validated against experimental results. Furthermore, a parametric study on CLT shear walls with the variation of type and number of connectors was conducted. The resistance estimated from parametric study and against analytical were compared. The proposed formulas can be useful tool for the design of CLT platform-type buildings, however, require further experimental validation.

Deflection of cross-laminated timber shear walls for platform-type construction

Engineering Structures ◽

10.1016/j.engstruct.2020.111091 ◽

2020 ◽

Vol 221 ◽

pp. 111091

Author(s):

Md Shahnewaz ◽

Marjan Popovski ◽

Thomas Tannert

Keyword(s):

Shear Walls ◽

Cross Laminated Timber ◽

Type Construction ◽

Timber Shear Walls

Resistance of Cross-Laminated Timber Shear Walls for Platform-Type Construction

Journal of Structural Engineering ◽

10.1061/(asce)st.1943-541x.0002413 ◽

2019 ◽

Vol 145 (12) ◽

pp. 04019149 ◽

Cited By ~ 6

Author(s):

Md Shahnewaz ◽

Marjan Popovski ◽

Thomas Tannert

Keyword(s):

Shear Walls ◽

Cross Laminated Timber ◽

Type Construction ◽

Timber Shear Walls

Dissipation in sheathing-to-framing connections of light-frame timber shear walls under seismic loads

Engineering Structures ◽

10.1016/j.engstruct.2020.110246 ◽

2020 ◽

Vol 208 ◽

pp. 110246 ◽

Cited By ~ 1

Author(s):

Giorgia Di Gangi ◽

Cristoforo Demartino ◽

Giuseppe Quaranta ◽

Giorgio Monti

Keyword(s):

Shear Walls ◽

Seismic Loads ◽

Timber Shear Walls

Reliability-based overstrength factors of cross-laminated timber shear walls for seismic design

Engineering Structures ◽

10.1016/j.engstruct.2020.111547 ◽

2021 ◽

Vol 228 ◽

pp. 111547

Author(s):

Angelo Aloisio ◽

Massimo Fragiacomo

Keyword(s):

Seismic Design ◽

Shear Walls ◽

Cross Laminated Timber ◽

Timber Shear Walls

Rocking Behavior of High-Aspect-Ratio Cross-Laminated Timber Shear Walls: Experimental and Numerical Investigation

Journal of Architectural Engineering ◽

10.1061/(asce)ae.1943-5568.0000473 ◽

2021 ◽

Vol 27 (3) ◽

Author(s):

M. Omar Amini ◽

John W. van de Lindt ◽

Douglas Rammer ◽

Shiling Pei

Keyword(s):

Aspect Ratio ◽

Numerical Investigation ◽

High Aspect Ratio ◽

Shear Walls ◽

Cross Laminated Timber ◽

Timber Shear Walls ◽

Rocking Behavior

In-Plane Strength and Stiffness of Cross-Laminated Timber Shear Walls

Buildings ◽

10.3390/buildings8080100 ◽

2018 ◽

Vol 8 (8) ◽

pp. 100 ◽

Cited By ~ 13

Author(s):

Md Shahnewaz ◽

Shahria Alam ◽

Thomas Tannert

Keyword(s):

Energy Dissipation ◽

Peak Load ◽

Shear Walls ◽

Experimental Tests ◽

Shear Loading ◽

Peak Displacement ◽

Cross Laminated Timber ◽

Type Construction ◽

Strength And Stiffness ◽

Single Shear

The research presented herein investigated the in-plane performance of cross-laminated timber (CLT) shear walls for platform-type buildings under lateral loading. Finite element models of CLT connections (i.e., brackets, hold-downs and self-tapping screws) were developed in OpenSees and calibrated against experimental tests to represent the connections’ hysteresis behaviour under cyclic tension and shear loading. The results were incorporated into models of CLT single and coupled shear walls. The results in terms of peak displacement, peak load and energy dissipation were in good agreement when compared to full-scale shear wall tests. Subsequently, a parametric study of 56 single and 40 coupled CLT shear walls was conducted with varying numbers and types of connectors (wall-to-floor and wall-to-wall) for evaluating their seismic performance. It was found that the strength, stiffness and energy dissipation of the single and coupled CLT shear walls increased with an increase in the number of connectors. Single shear walls with hold-downs and brackets performed better under seismic loading compared to walls with brackets only. Similarly, coupled shear walls with four hold-downs performed better compared to walls with two hold-downs. Finally, ductility of coupled shear walls was found to be 31% higher compared to that of single shear walls. The findings from this research are useful for engineers to efficiently design CLT shear walls in platform-type construction.

Experimental study on lateral performance of glued-laminated timber frame infilled with cross-laminated timber shear walls

Engineering Structures ◽

10.1016/j.engstruct.2021.112354 ◽

2021 ◽

Vol 239 ◽

pp. 112354

Author(s):

Jianyang Xue ◽

Guoqi Ren ◽

Liangjie Qi ◽

Chenwei Wu ◽

Zhen Yuan

Keyword(s):

Experimental Study ◽

Shear Walls ◽

Cross Laminated Timber ◽

Timber Frame ◽

Glued Laminated Timber ◽

Timber Shear Walls

Proposal of an analytical procedure and a simplified numerical model for elastic response of single-storey timber shear-walls

Construction and Building Materials ◽

10.1016/j.conbuildmat.2014.12.114 ◽

2016 ◽

Vol 102 ◽

pp. 1101-1112 ◽

Cited By ~ 35

Author(s):

Daniele Casagrande ◽

Simone Rossi ◽

Tiziano Sartori ◽

Roberto Tomasi

Keyword(s):

Numerical Model ◽

Analytical Procedure ◽

Shear Walls ◽

Elastic Response ◽

Timber Shear Walls

Experimental and numerical evaluation of hold-down connections on radiata pine Cross-Laminated-Timber shear walls: a case study in Chile

European Journal of Wood and Wood Products ◽

10.1007/s00107-018-1365-1 ◽

2018 ◽

Vol 77 (1) ◽

pp. 79-92 ◽

Cited By ~ 2

Author(s):

F. Benedetti ◽

V. Rosales ◽

A. Opazo-Vega ◽

J. Norambuena-Contreras ◽

A. Jara-Cisterna

Keyword(s):

Numerical Evaluation ◽

Shear Walls ◽

Radiata Pine ◽

Cross Laminated Timber ◽

Timber Shear Walls

Hyperelastic hold-down for cross-laminated timber shear walls

10.24124/2020/59102 ◽

2020 ◽

Author(s):

◽

Hosein Asgari

Keyword(s):

Experimental Studies ◽

Residual Deformation ◽

Tall Buildings ◽

Shear Walls ◽

High Strength ◽

Cyclic Tests ◽

Cross Laminated Timber ◽

High Rise ◽

Strength And Deformation ◽

Timber Shear Walls

Cross-laminated Timber (CLT) is increasingly being used in tall buildings. However, there are some challenges when designing high-rise CLT structures, amongst them the need for novel hold-downs (HD), for shear walls. While commonly used HDs behave as a dissipative connection, the current Canadian Standard for Engineering Design in Wood recommends designing HDs as a non-dissipative connection. As hyperelastic material, an elastomer (rubber) is capable to carry high loads without inelastic deformation. This thesis presents experimental studies at material- and component-levels using a hyperelastic rubber HD solution for CLT walls. A total of 53 quasi-static monotonic and cyclic tests were performed. The HDs exhibited high strength and deformation capacity without any residual deformation after unloading. The shape factor and loaded area of rubber layers were found as the main effective factors on the rubber HD’s response, and an empirical load-displacement relation was also developed based on these parameters.