- 目录
- 绿色建材
- 首页
预制夹心混凝土墙板连接件性能研究
作者：张佳阳，郭振雷，高志杰，段中剑
（北京建筑材料科学研究总院有限公司，北京 100041）
摘要：通过研究预制夹心混凝土墙板连接件不同间距、夹心保温层不同厚度的连接件末端挠度，分析连接件正常使用时受力极限状态下的变形情况，给出了连接件不同间距的夹心保温层的合理厚度。随着夹心保温层厚度的增加，连接件对墙板传热系数的影响逐渐提高；随着连接件间距的增加，连接件对墙板传热系数的影响逐渐降低。通过抗震试验，研究了满足北京80%居住建筑节能设计标准的夹心墙板连接件间距300 mm、夹心保温层厚度100 mm的抗震性能，结果表明，试件具有较好的整体工作性能，试件保温板与外叶板具有较好的整体性，试件滞回曲线均较为饱满，累计耗能随加载过程不断增大，具有较好的抗震耗能能力。
关键词：预制夹心混凝土墙板；连接件；传热系数；抗震性能
中图分类号：TU973 文献标识码：A 文章编号：1001-702X（2022）08-0065-05
Study on performance of concrete wallboard connectors with sandwich insulation
ZHANG Jiayang，GUO Zhenlei，GAO Zhijie，DUAN Zhongjian
（Beijing Building Materials Academy of Sciences Research，Beijing 100041，China）
Abstract：By studying the end deflection of connector with different spacing and different sandwich insulation layer，analyzing deformation of connector under force limit state by normally use，reasonable thickness of sandwich insulation layer with different connector spacing was given. The results showed that with the increase of the thickness of the sandwich insulation layer，the influence of the connector on the heat transfer coefficient of the insulation wallboard increases gradually，and with the increase in the spacing of connectors，the influence of the connector on the heat transfer coefficient of insulation wallboard gradually decreases. Through the seismic test，the seismic performance of sandwich wallboard connectors with 300 mm spacing and 100 mm thickness of sandwich insulation layer meeting the design standard for 80% energy efficiency of residential buildings in Beijing was studied. The results showed that the specimen had good working performance，and the insulation wallboard and outer leaf board of the specimen had good integrity. The hysteresis curves of specimens were full，and the accumulated energy dissipation increased with the loading process，which had good seismic energy dissipation capacity.
Key words：prefabricated concrete sandwich wallboard，connectors，heat transfer coefficient，earthquake resistant behavior