面层强化型发泡陶瓷板平面外受力性能试验研究  

Experimental study on the outer plane force performance of surface-reinforced foamed ceramic plates

作　　者：曹万林[1] 刘策 刘思媛 杨兆源 刘亦斌 陈玉宝 CAO Wanlin;LIU Ce;LIU Siyuan;YANG Zhaoyuan;LIU Yibin;CHEN Yubao(Faculty of Architecture,Civil and Transportation Engineering,Beijing University of Technology,Beijing 100124,China;Inner Mongolia Jianneng Xinghui Ceramics Co.,Ltd.,Ordos 017000,China)

机构地区：[1]北京工业大学城市建设学部,北京100124 [2]内蒙古建能兴辉陶瓷有限公司,内蒙古鄂尔多斯017000

出　　处：《自然灾害学报》2023年第5期126-138,共13页Journal of Natural Disasters

基　　金：国家重点研发计划项目(2018YFD1100903);北京市博士后工作经费资助项目(Q6001012202202)。

摘　　要：研发了一种面层强化型发泡陶瓷板,它由发泡陶瓷板复合高性能砂浆面层而成。进行了9个不同设计参数的发泡陶瓷板及面层强化型发泡陶瓷板平面外受力性能试验,设计参数包括:发泡陶瓷板是否嵌入钢筋网;钢筋网分布间距以及嵌入深度;发泡陶瓷板是否复合高性能砂浆面层;复合高性能砂浆面层是单面复合还是双面复合。试件宽1200 mm、厚80 mm,施加垂直于板面的集中荷载,力作用方向通过试件形心。对比分析了各试件的破坏特征、承载力、刚度、应变。结果表明:内嵌钢筋网可克服发泡陶瓷板脆性破坏,发泡陶瓷板开槽并嵌入钢筋网后采用灌浆料粘结可保证钢筋网与发泡陶瓷板共同工作;与普通发泡陶瓷板相比,面层强化型发泡陶瓷板的承载力、刚度和变形能力显著提升。提出了面层强化型发泡陶瓷板平面外承载力简化计算公式,并进行了有限元模拟,计算及模拟结果与实测符合较好。An innovative surface layer-enhanced foamed ceramic(LEFC)board was proposed in this paper.The LEFC board composed of foamed ceramic board and high-performance mortar laver surface.Nine difference LEFC specimens was designed and manufactured to test the out-of-plane behavior.Experimental variables included:steel reinforcement mesh(with or without),steel reinforcement spacing,buried depth of steel reinforcement,high-performance mortar surface(with or without),and the layers of high-performance mortar surfaces.The width,and thickness of specimens were 1200 mm and 80 mm,respectively.Unidirectional loading force perpendicular to the plate surface was adopted,and the load action axis passed through the plate centroid.The failure characteristics,bearing capacity,stiffness,degradation,and strain of LEFC specimens were analyzed.The results show that the steel mesh could restrain the brittle failure of foamed ceramic,and the grouting material enhanced the joint working ability of steel mesh and foam ceramic board.Compared with the foamed ceramic board,the bearing capacity,stiffness,and deformation capacity of the LEFC board were improved significantly.The simplified calculation method of out-of-plane bearing capacity for LEFC specimen was proposed.At the same time,the finite element simulation for LEFC specimens was carried out.And the calculation and simulation results were in good agreement with the experimental results.

关 键 词：发泡陶瓷板 高性能砂浆面层 平面外受力性能 试验研究 承载力计算 

分 类 号：TU398[建筑科学—结构工程]