The paper presents a simple yet robust frame model to be used as an alternative to continuous 2D or 3D finite element models for the purpose of analyzing multi-storey cross-laminated timber (CLT) shearwalls with openings when subjected to lateral loads. The proposed model is applicable to monolithic CLT walls and takes into account the mechanical interaction between wall segments and lintel/parapet elements as well as the non-linear behaviour of the mechanical anchors, while the contribution of the vertical load is omitted. Pushover numerical analyses were conducted on the proposed equivalent frame model (EFM) and 2-D finite element model, and the results showed good agreement between the two models along the entire force-displacement curves. The failure conditions were found to be consistent in all cases, and the distribution of the internal forces were found to be reasonable. The proposed EFM was also compared with published test results on CLT shearwalls and the fit was deemed reasonable, with a slight tendency to underestimating the ultimate capacity of the shearwalls.

本文提出了一个简单而强大的框架模型，可用作连续 2D 或 3D 有限元模型的替代模型，用于分析在承受横向载荷时具有开口的多层交叉层压木材 (CLT) 剪力墙。所提出的模型适用于整体 CLT 墙，并考虑了墙段和门楣/栏杆元素之间的机械相互作用以及机械锚的非线性行为，同时忽略了垂直载荷的贡献。对提出的等效框架模型 (EFM) 和二维有限元模型进行 Pushover 数值分析，结果表明两种模型在整个力-位移曲线上具有良好的一致性。发现故障条件在所有情况下都是一致的，并且发现内力的分布是合理的。提议的 EFM 还与已公布的 CLT 剪力墙测试结果进行了比较，并且认为拟合合理，略有低估剪力墙极限承载力的趋势。