摘要
江苏园博园未来花园有机玻璃水幕是目前我国建筑领域罕见的超大型有机玻璃项目,对其进行施工及运营过程健康监测具有重要的意义。采用应变片对有机玻璃水幕施工阶段退火过程进行了应变监测,监测结果表明:在退火过程中,板底和肋底均出现拉应变,其值与温度正相关,退火完成后,伞面残余应变值较低。采用振弦应变计对有机玻璃水幕运营阶段进行了应变监测。监测结果表明:运营阶段,有机玻璃水幕中应力波动主要受到温度的影响,但波动范围较小,运营期间未出现明显蠕变现象,所有测点的应力分布在0~5.0MPa之间,应力值较低,结构安全。
The acrylic water curtain in Jiangsu Garden EXPO Park Future Garden is currently rare super large acrylic project in Chinese building sector,and it is of great significance for the health monitoring of its construction and operation process.Strain gauges were used to monitor the strain of the annealing process during the construction process of acrylic water curtain.The monitoring results show that during the annealing process,tensile strain which is positively correlated with temperature appears on the bottom of the plate and ribs,and the residual strain on the surface of the umbrella is low when the annealing process was completed.The strain monitoring of the acrylic water curtain during the operation process was carried out using vibrating wire strain gauges.The monitoring results show that during the operation process,the stress fluctuation in the acrylic water curtain is mainly affected by temperature,while the fluctuation range is small.There is no significant creep during the operation process.The stress level of all the measuring points is low,which was between 0MPa and 5MPa,and the safety of the structure is ensured.
作者
舒赣平
孙洲
李全伟
谢军
李磊
郑宝锋
SHU Ganping;SUN Zhou;LI Quanwei;XIE Jun;LI Lei;ZHENG Baofeng(School of Civil Engineering,Southeast University,Nanjing 210096,China;China Architecture Design and Research Institute Co.,Ltd.,Beijing 100044,China;Tongzheng Construction Technology Group,Shanghai 201100,China;Jiangsu Kedi Construction Engineering Quality Inspection Co.,Ltd.,Nanjing 211124,China;Jiangsu Donchamp New Materials Technology Co.,Ltd.,Taixing 225542,China)
出处
《建筑结构》
北大核心
2023年第8期7-11,共5页
Building Structure
基金
住房和城乡建设部研究开发项目“有机玻璃在建筑与结构领域的应用技术研究”(K20200452)。
关键词
江苏园博园未来花园
有机玻璃
热聚合
施工及运营
健康监测
Jiangsu Garden EXPO Park Future Garden
acrylic
thermal polymerization
construction and operation
health monitoring
