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现代木结构抗火研究进展
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作者 刘鹏飞 张永旺 王璐 《南京工业大学学报(自然科学版)》 CAS 北大核心 2024年第4期407-425,463,共20页
现代木结构抗火性能研究因其材质的易燃性、火灾预测的复杂性以及影响因素的多样性而极具挑战性。本文以火灾作用下木材热性能为出发点,再到构件和节点分析,进而扩展到结构,对整个现代木结构抗火所涉及的相关研究成果进行较为全面的回... 现代木结构抗火性能研究因其材质的易燃性、火灾预测的复杂性以及影响因素的多样性而极具挑战性。本文以火灾作用下木材热性能为出发点,再到构件和节点分析,进而扩展到结构,对整个现代木结构抗火所涉及的相关研究成果进行较为全面的回顾。主要内容包括:木材着火、热解以及炭化,木构件和节点抗火,木结构抗火。已有研究结果表明:对于火灾作用下木材燃烧机制、构件抗火性能、节点连接性能以及结构火灾性能方面已有较为清晰的认识,也开发了木材着火、热解及炭化预测模型,明确了结构设计与消防安全的基本概念。为满足现代木结构整体火灾安全设计需求,应致力于发展精确的火灾模型、先进的热模型及结构模型,重点关注自然火灾下建筑全过程结构行为;未来尚应在研究内容上聚焦高大型空间木结构火灾温度效应与结构整体受火性能,在研究方法上以性能化火灾安全设计为目标,从而推动现代木结构向高层、大空间及大跨度方向发展。 展开更多
关键词 现代木结构 木材热性能 结构构件 连接节点 抗火性能 火灾模型
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Heat-treated wood and its development in Europe 被引量:15
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作者 谢延军 刘一星 孙耀星 《Journal of Forestry Research》 SCIE CAS CSCD 2002年第3期224-230,252,共7页
Efficient use of timber is a vital concern problem, especially in these regions where the forestry coverage ratio is decreasing. Studies on physical modification of wood have been taken more attention due to the incre... Efficient use of timber is a vital concern problem, especially in these regions where the forestry coverage ratio is decreasing. Studies on physical modification of wood have been taken more attention due to the increasing attentions on environmental protection. Thermal modification is emphasized and developed quickly in developing countries, especially in European countries. A large number of researches have been conducted and some industrial production plants have been built. This paper reviewed the history of heat treatment, exemplifies the industrial developments in several European countries, summarized the basic principle of heat treatment and describes the environmental characteristics. The properties of heat-treated wood and its usage are also summed up. 展开更多
关键词 Heat-treated wood DURABILITY Dimension stability Mechanical characteristics Industrial production
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