Abstract The construction industry, which accounts for almost 20% of Australia’s carbon emissions, is responding to climate change by increasing the demand for sustainable and environmentally friendly materials. Cross-laminated timber (CLT) is an innovative eco-friendly engineering material that can satisfy this demand due to its excellent properties, including fire and seismic resilience, natural insulation and lightweight, to name a few. This study presents the results of 8 blast tests, which were conducted on two types of Radiata pine CLT panels sourced in Australia. The CLT panels were subjected to simulated blast loads from a shock tube apparatus. The dynamic increase factor (DIFE) of the panels was quantified by comparing their stiffness in the dynamic and static loading regimes. Single degree of freedom (SDOF) and numerical models were developed to predict the elastic response of the CLT panels. Interestingly, the SDOF model predicted DIFE from 1.12 to 1.57 whilst the numerical model predicted DIFE from 1.05 to 1.43 . The experimental and analytical results can supplement the development of design guidelines for predicting the behavior of Australian Radiata pine CLT panels under blast loading.

中文翻译：

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辐射松 CLT 板在模拟平面外爆炸载荷作用下的动态增加系数

摘要 占澳大利亚碳排放量近 20% 的建筑业正在通过增加对可持续和环保材料的需求来应对气候变化。交叉层压木材 (CLT) 是一种创新的环保工程材料，可以满足这一需求，因为它具有出色的性能，包括防火和抗震、天然绝缘和轻质等。本研究展示了 8 次爆炸试验的结果，这些试验是在澳大利亚采购的两种辐射松 CLT 面板上进行的。CLT 面板承受来自冲击管装置的模拟爆炸载荷。面板的动态增加系数 (DIFE) 通过比较它们在动态和静态加载状态下的刚度来量化。开发了单自由度 (SDOF) 和数值模型来预测 CLT 面板的弹性响应。有趣的是，SDOF 模型预测 DIFE 为 1.12 至 1.57，而数值模型预测 DIFE 为 1.05 至 1.43。实验和分析结果可以补充设计指南的制定，以预测澳大利亚辐射松 CLT 板在爆炸载荷下的行为。