Comparison of Control Experiments with Field Case Studies- Testing Snow Load Parameters

本项目将研究影响屋顶积雪沉积的各种因素，重点是雪荷载对结构的热效应和滑动效应。此外，还将研究结构的固有特性对积雪分布、密度和深度的影响。这项工作将分为两项任务：调查建筑热损失对屋顶积雪的影响；并在随后的两个冬季（1983 -84年）继续进行雪滑实地研究。还将进行一些实验室模拟。本项目的主要目的是增加PI在上述因素上开发的数据库，并扩展现有的预测结构雪荷载的基础知识，以用于未来结构的设计。

This project will examine various factors affecting the deposition of snow on roofs, with emphasis on the thermal and sliding effects of snow loads on structures. The influence of the intrinsic properties of the structures on snow distribution, density, and depth will be studied as well. The work will be divided into two tasks: investigation of the effects of building heat loss on roof snow cover; and continuation of snow sliding field studies carried out during two subsequent winters (l983-84). Some laboratory simulation will also be conducted. The primary purpose of the project is to increase the data base developed by the PI on the above mentioned factors, and to extend the existing basic knowledge for predicting snow loads on structures to be used in the design of future structures.