木材热湿物性参数测试与比较  

Test and Comparison of Hygrothermal Properties of Wooden Materials

作　　者：陆江[1] 徐婉清 薛育聪 徐旭[4] LU Jiang;XU Wanqing;XUE Yucong;XU Xu(Zhejiang University of Science and Technology,Hangzhou 310023,Zhejiang,China;College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310058,Zhejiang,China;Center of Balance Architecture,Zhejiang University,Hangzhou 310063,Zhejiang,China;China Jiliang University,Hangzhou 310018,Zhejiang,China)

机构地区：[1]浙江科技学院,浙江杭州310023 [2]浙江大学建筑工程学院,浙江杭州310058 [3]浙江大学平衡建筑研究中心,浙江杭州310063 [4]中国计量大学,浙江杭州310018

出　　处：《建筑科学》2023年第8期160-167,共8页Building Science

基　　金：国家自然科学基金项目“夏热冬冷地区现代木结构建筑围护结构热湿耦合传递与室内环境热湿响应特性研究”(51978623)。

摘　　要：由于木结构建筑具有节能减碳的优点,近年来其在世界各地得到大力推广。在木结构建筑的使用过程中,其围护结构构成材料-木材的热湿物理性质参数将显著地影响围护结构的热工性能及霉菌生长情况。因此,准确的物性参数数据能帮助学者科学地进行相关研究与构造优化,进而促进木结构体系的推广。然而,目前国内缺少成体系的相关参数数据库作为支撑。本文参照国内外材料热湿物理性质参数测试标准,对市场上常见的几种木材料进行了实验测试,并与建筑热湿模拟软件WUFI数据库中的相似材料参数进行了对比,总结了材料的热湿物性特征以及不同材料之间的差异。研究结果表明,热湿传递方向与纤维束方向的关系、树木性质的差异、材料的加工工艺以及处理方法等均会对木材的热湿参数造成影响,且这些因素对热湿传递相关性质的影响相比热湿储存性质更为显著。本文测试的参数可为后人的研究与运用提供参考。As wooden structure buildings can effectively reduce carbon emissions and save energy,they have been promoted across the world in recent years.During the application stage,the hygrothermal parameters of wooden materials would apparently influence the thermal performance and mould growth rate of the wooden building envelope.So accurate data of the hygrothermal parameters can help researchers conduct related studies and structure optimization and further promote the wooden structure buildings.However,there is a lack of a systematic database on hygrothermal parameters as the underpinning in China.In this study,selected wooden materials commonly seen in the market were tested with the reference of international and Chinese standards.And the results were also compared with the data in the database of WUFI,a software for hygrothermal simulation.Then the hygrothermal characteristics of wood were summarized as well as the differences between different materials.The research showed that the included angle between the direction of heat and moisture transfer and the grain,the difference between characteristics of various trees,and the processing methods would all have an influence on the hygrothermal parameters of materials.Besides,these factors have a more significant impact on parameters for heat and moisture transfer compared with parameters for heat and moisture storage,thus providing a reference for future research and application.

关 键 词：热湿物性参数 实验研究 木材 各向异性 热湿传递 

分 类 号：TU531.1[建筑科学—建筑技术科学]