摘要
防火玻璃作为安全玻璃在建筑火灾中发挥重要的作用,通过对玻璃钢化过程、防火玻璃隔断受火过程的数值模拟,研究玻璃平面尺寸、厚度对玻璃钢化后残余应力的影响,模拟出玻璃钢化后的残余应力场,火灾中框架式防火玻璃隔断的温度场、应力场变化,以第一强度准则作为玻璃开裂破坏的判断标准,归纳出框架式防火玻璃隔断耐火性能与玻璃钢化过程参数之间的关系。
Fireproof glass as safety glass plays an important role in the building fire. Through the toughed process of glass and heating process of fireproof glass partition in the fire simulated by numerical method, the impact of surface size, width to thickness ratio of glass panel and cooling speeding to the residual stress distribution of toughed glass panel are researched. The quantitative relationship between fire resistance properties of fireproof glass partition and the parameters of glass toughed process are concluded according to the distribution of temperature and stress based on the first strength criterion.
出处
《土木工程》
2020年第10期1024-1037,共14页
Hans Journal of Civil Engineering
关键词
火灾
玻璃钢化
防火玻璃
隔断
耐火性能
Fire
Toughed Glass
Fireproof Glass
Partition
Fire Resistance Property
