轻钢骨架发泡水泥粉煤灰墙板抗震性能试验研究  

Experimental study on seismic performance of light steel skeleton foamed cement fly ash wallboard

作　　者：蒋欣利 周立超[1] 白羽[1] 苏何先[1] 柏文峰 JIANG Xinli;ZHOU Lichao;BAI Yu;SU Hexian;BAI Wenfeng(Faculty of Civil Engineering and Mechanics,Kunming University of Science and Technology,Kunming Yunnan 650500,China;不详)

机构地区：[1]昆明理工大学建筑工程学院,云南昆明650500 [2]昆明理工大学建筑与城市规划学院,云南昆明650500

出　　处：《工业安全与环保》2023年第2期31-35,共5页Industrial Safety and Environmental Protection

基　　金：云南省科技厅重点研发计划项目(202003AC100001)。

摘　　要：为了研究轻钢骨架发泡水泥粉煤灰墙板的抗震性能,对立柱数量不同的两块足尺墙板进行水平低周反复加载试验,研究各自受力机理以及立柱数量对墙板抗震性能的影响。试验结果表明:轻钢骨架发泡水泥粉煤灰墙板破坏后墙板仍能保证较好的整体性,满足安全性要求;2根立柱的轻钢骨架发泡水泥粉煤灰墙板产生脆性破坏,轻钢和发泡水泥板协同工作较差,其抗震性能较差;3根立柱墙板由于在墙板中部多设置一根立柱阻断了发泡水泥粉煤灰的裂缝开展,改变了墙体的受力机理,使墙板的抗震性能提高,与2根立柱的墙板相比其延性提高了144%,抗剪强度提高了4.9%,耗能能力提高了365%。In order to study the seismic performance of light steel skeleton foamed cement fly ash wallboards,two fullscale wallboards with different numbers of columns were subjected to horizontal low-cycle repeated loading tests to study the stress mechanism and the effect of the number of columns on the seismic performance of the wallboards.The test results show that after the light steel skeleton foamed cement fly ash wallboard is damaged,the wallboard can still ensure good integrity and meet the safety requirements;the light steel skeleton foamed cement fly ash wallboard with two columns produces brittleness damage,the light steel and foamed cement board work poorly together,and their seismic performance is poor;the three-column wallboard has an extra column in the middle of the wallboard to block the development of cracks in foamed cement and fly ash,changing the wall.Compared with the two-column wallboard,its ductility is increased by 144%,the shear strength is increased by 4.9%,and the energy dissipation capacity is increased by 365%.

关 键 词：轻质浆料 发泡水泥粉煤灰 轻钢骨架组合墙板 抗震性能 

分 类 号：TU352.11[建筑科学—结构工程] TU392.5