(1 同济大学土木工程防灾国家重点实验室， 上海 200092； 2 黑龙江大学建筑工程学院， 哈尔滨 150086)

［摘要］雪荷载是低矮屋盖的重要设计荷载，风雪的联合作用对结构的破坏较为严重。对地面及典型屋盖表面的雪密度进行实测研究，具体考察了温度、雪厚度、沉积时间等因素对雪密度的影响规律，并对各影响因素进行了详细分析。此外，对平屋盖、拱形屋盖上雪荷载的沉积和分布特征进行实测，并与中国、美国、欧洲等国家荷载规范中相关条款对比分析，为雪荷载实用计算方法的确定提供依据。

［关键词］雪密度; 实测; 低矮屋盖; 分布特征; 荷载规范

中图分类号：TU312      文献标识码：A      文章编号：1002-848X(2014)17-0095-06

Field measurement study of the snow load

Zhou Xuanyi 1, Li Fanghui2, Gu Ming 1, Meng Fan2

 (1 State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China; 2 Heilongjiang University, School of Architectural Engineering, Harbin 150086, China)

Abstract: The snow load is an important design load for the low-rise roof, and the structures are seriously destroyed under the coupled action of wind and snow loads. The field measurement studies were carried out on the snow densities on the ground and typical roof. The effect laws of temperature, snow depth and depositing time on the snow density were observed and analyzed in detail. In addition, depositions and distribution characteristics of snow loads on the flat and arched roofs were measured and compared with relevant provisions of the load codes in China, USA and European countries, which provided basis for the determination of the practical calculating method of the snow load.

Keywords: snow density; field measurement; low-rise roof; distribution characteristics; load code

*国家自然科学基金项目(50608060)。

作者简介：周晅毅，博士生导师，Email:zhouxytj@mail.tongji.edu.cn。

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