Due to the characteristics of orthogonal layup, CLT is more likely to occur time-dependent deformation. The creep behavior of hybrid CLT (HCLT) together with normal CLT specimens was analyzed under different constant-loading conditions (shear and bending) lasting for 90 days. The results showed that the long-term creep performance of these specimens was significantly affected by different loading conditions and layup. The values of relative creep of CLT and HCLT were 62% and 286% higher than those under bending, respectively. The variation of humidity had a certain influence on the long-term creep performance of CLT and HCLT, and the frequent change of relative humidity would accelerate the creep rate of these specimens. Besides, it has been found that the power law model and five-parameter model had the similar prediction for 10-year creep coefficient. Compared with five-parameter model, the power law model exhibited a less diversity between bending and shear specimens with regarding to the prediction of 50-year creep coefficient.

中文翻译：

---

用木材和 OSB 制造的混合 CLT 的长期蠕变性能

由于正交铺层的特点，CLT更容易发生随时间变化的变形。在持续 90 天的不同恒定载荷条件（剪切和弯曲）下，分析了混合 CLT (HCLT) 与普通 CLT 样本的蠕变行为。结果表明，这些试件的长期蠕变性能受到不同加载条件和铺层的显着影响。CLT和HCLT的相对蠕变值分别比弯曲条件下高62%和286%。湿度的变化对CLT和HCLT的长期蠕变性能有一定的影响，相对湿度的频繁变化会加速这些试件的蠕变速率。此外，还发现幂律模型和五参数模型对10年蠕变系数的预测相似。与五参数模型相比，幂律模型在预测 50 年蠕变系数方面，弯曲和剪切试件之间的差异较小。