摘要
为了提升村镇低矮木结构建筑围护墙风雨致腐耐久性,对围护墙风驱雨效应进行了数值模拟。考虑风驱雨单向耦合效应,建立欧拉多相流模型,与文献的试验数据和模拟结果进行对比,验证了模型的正确性。分析不同风向角下,双坡屋面、四坡屋面、平面矩形、L形、凹形、凸形和立面L形建筑外墙立面风驱雨抓取率分布规律和累积面积抓取率,评估风驱雨对村镇木结构建筑的影响,给出了减缓风驱雨效应的措施。
To promote the anti-corrosion and durability of rural timber structure building, this paper carried out numerical simulation research on external wall wind-driven rain effect of timber structure building. Considering the unidirectional coupling effect of wind-driven rain, multiphase Eulerian model was built to compare documentary testing result and simulation result and to verify correctness of the model. It analyzed wind-driven rain catch rate distribution law and accumulated area catch rate on external wall fa?ade of double-slope roof, four-slope roof, plane rectangular, concave, convex and L-shape,and evaluated the influence of wind-driven rain on rural timber structure building, proposing measures for reducing the wind-driven rain effect.
作者
周华樟
蔡荣
ZHOU Hua–zhang;CAI Rong(Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education,Harbin Institute of Technology,150090,Harbin,China;Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters of the Ministry of Industry and Information Technology,Harbin Institute of Technology,150090,Harbin,China)
出处
《建筑技术》
2022年第3期298-302,共5页
Architecture Technology
基金
国家重点研发计划项目(2019YFD1101001)。
关键词
木结构
风驱雨
欧拉多相流
抓取率
防腐耐久性
timber structure
wind-driven rain
Eulerian multiphase
catch rate
anti-corrosion and durability
