轻型门式刚架房屋灾害破坏及防灾减灾问题分析

发布时间：2018-12-12 11:28

【摘要】：门式刚架轻型房屋在我国低层大开间建筑中应用广泛.近年来,我国灾害频发,门式刚架房屋受损较严重,给国民经济造成巨大损失.分析原因:一方面作为一种轻钢结构,抗灾害能力较弱;另一方面,人们对门式刚架房屋的防灾减灾意识不强.针对上述情况,本文系统总结了雪灾、风灾、火灾以及地震对该种结构的破坏形式,分析了破坏原因,并提出了具体的设计对策,针对灾害破坏下门式刚架规范的修订及安全问题进行总结分析.同时,提出了"门式刚架屋面抗火性能及防护措施"和"门式刚架房屋局部倒塌引起的连续倒塌机制及防连续倒塌设计"两个新安全问题,希望引起相关人员的重视,进而推动门式刚架房屋防灾减灾工作的发展.
[Abstract]:Portal frame light buildings are widely used in low-rise open-room buildings in our country. In recent years, disasters occur frequently in China, and the damage of portal frame buildings is serious, which causes huge losses to the national economy. On the one hand, as a light steel structure, the ability to resist disasters is relatively weak; on the other hand, the awareness of disaster prevention and mitigation of portal frame buildings is not strong. In view of the above situation, this paper systematically summarizes the damage form of snow disaster, wind disaster, fire and earthquake to this kind of structure, analyzes the damage reason, and puts forward the concrete design countermeasure. This paper summarizes and analyzes the revision and safety problems of portal frame code under disaster damage. At the same time, two new safety problems, such as "fire resistance and protection measures of portal frame roof" and "continuous collapse mechanism and design of continuous collapse caused by local collapse of portal frame buildings", are put forward, which are hoped to arouse the attention of relevant personnel. And then promote the development of portal frame housing disaster prevention and mitigation work.
【作者单位】：陕西师范大学基建处;西安理工大学土木建筑工程学院;西安建筑科技大学土木工程学院;
【基金】：陕西省科技厅自然科学基础研究基金资助(2015JQ5166) 陕西省教育厅专项科学研究计划项目基金资助(15JK1534) 西安市建设科技计划项目基金资助(SJW2014012、SJW2015011)
【分类号】：TU392.5

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