（内蒙古科技大学土木工程学院， 包头 014010）

［摘要］蒙古包的竖向荷载主要来自雪荷载。在参考蒙古包原型尺寸的基础上，利用建模软件SOLID WORKS及ABAQUS构建了蒙古包结构骨架模型，研究了传统蒙古包结构在里围绳作用下，结构各部件在满布雪荷载和半分布雪荷载时的受力机理与受力形态。研究结果表明，传统蒙古包结构在雪荷载作用下，套脑起到了乌尼的支座效果，在向下位移过程中与乌尼相互支撑，达到平衡状态；乌尼呈现出简支梁均布荷载作用下受弯的特点；哈那均匀地分散了上部结构传递的荷载；里围绳可阻止哈那上部外张，起到了维护结构整体性的重要作用。

［关键词］传统蒙古包结构； 受力机理； 雪荷载满布； 雪荷载半分布

中图分类号：TU366-2文献标识码：A文章编号：1002-848X(2019)24-0054-06

Mechanical behavior analysis of traditional Mongolian yurt structure under snow load

Niu Jiangang， Zhao Mengmeng， Zhong Chonglei

(School of Civil Engineering， Inner Mongolia University of Science and Technology， Baotou 014010， China)

Abstract:The vertical load of Mongolia yurt mainly comes from snow load. Based on the reference of the original size of the Mongolian yurt, the framework model of the Mongolian yurt structure was constructed by using the modeling software SOLID WORKS and ABAQUS. The mechanical behavior and form of the components of the traditional Mongolian yurt structure under the action of the inner ring rope under the full snow load distribution and the half snow load distribution were studied. The research results show that under the action of snow load, Taonao of traditional Mongolian yurt structure has the bearing effect of Unni, and it supports each other with Unni in the process of downward displacement to reach the balance state; Unni presents the bending characteristics under the uniform load of simply supported beam; Hana evenly disperses the load transmitted by the upper structure; the inner ring rope can prevent the upper part of Hana from stretching out and maintain the important role of construction integrity.

Keywords:traditional Mongolian yurt structure; mechanical behavior; full snow load distribution; half snow load distribution

*内蒙古自然科学基金(2016MS0517)，西部绿色建筑国家重点实验室培育基地开放研究基金(LSKF201708)，内蒙古自治区青年科技英才支持计划（NJYT-18-A06）资助。

作者简介：牛建刚，博士，教授，硕士生导师，Email：niujiangang@imust.edu.cn。