基于频率变化率的全隐框玻璃幕墙损伤检测研究  

Study on Damage Detection of Full-scale Frame-concealed Glass Curtain-walls Based on Modal Curvature

作　　者：罗文奇[1] 方治华[1] 

机构地区：[1]内蒙古科技大学土木工程学院,内蒙古包头014010

出　　处：《建筑技术开发》2017年第7期1-2,共2页Building Technology Development

摘　　要：随着我国经济的快速发展,建筑幕墙需求量急剧增加,但各种高空坠落事故频发,因此应通过振动检测,及时查找损伤的幕墙玻璃并更换,从而预防安全事故发生。故以5种损伤模型为研究对象进行模态分析,以低阶频率变化率为损伤指标,分析研究其敏感程度;试验研究验证了该指标的敏感程度,达到了预期效果,可为今后的研究提供参考和借鉴。With the rapid development of China＇s economy, the demand for curtain walls has increased dramatically, but various high-altitude fall accident have been frequent. Therefore, it is necessary to detect the damaged curtain wall glass by vibration detection and prevent the safety accidents. Therefore, five kinds of damage models were used for modal analysis, and the low-order frequency change rate was used as the damage index to analyze the sensitivity degree. The experimental study verified the sensitivity of the index and achieved the expected effect, which could be used for future research Provide reference and reference.

关 键 词：全隐框玻璃幕墙 脱胶损伤 损伤识别 

分 类 号：TU746.2[建筑科学—建筑技术科学]