GLC硅质轻型墙板轴心受压试验研究  

Experimental research on axial compression of GLC siliceous light wallboard

作　　者：焦红[1] 马海程 王松岩[1] 刘学光 姜晓雯 JIAO Hong;MA Haicheng;WANG Songyan;LIU Xueguang;JIANG Xiaowen(School of Civil Engineering,Shandong Jianzhu University,Jinan 250101,China)

机构地区：[1]山东建筑大学土木工程学院,山东济南250101

出　　处：《山东建筑大学学报》2022年第5期11-19,共9页Journal of Shandong Jianzhu University

摘　　要：为研究GLC硅质轻型墙板的轴心受压性能,开展了5组不同高厚比的墙板试件在轴心荷载作用下的试验,通过研究其破坏过程和破坏模式,分析了不同高厚比对墙板试件的承载能力、裂缝开展、刚度及延性的影响,并基于压杆稳定理论计算了高厚比限值。结果表明:随着高厚比的增加,墙板试件的承载力呈非线性降低趋势,且在高厚比>37.5时,试件的承载力会显著下降;高厚比限值的理论计算值为35,通过与试验结果比较,发现二者吻合较好,验证了高厚比限值的合理性和适用性。在此基础上,建立了适用于GLC硅质轻型墙板的轴心受压承载力计算公式。In order to study the axial compressive property of GLC siliceous light wallboard,five groups of wallboard specimens with different height-thickness ratios were tested under axial load.By studying its failure process and failure mode,we analyzed the effects of different height-thickness ratios on the bearing capacity,crack development,stiffness and ductility of wallboard specimens,and calculated the limit value of height-thickness ratio based on column buckling theory.The results show that the bearing capacity of the wallboard specimens decreases nonlinearly with the increase of the height-thickness ratio,and the bearing capacity of the specimens decreases significantly when the height-thickness ratio is greater than 37.5.In addition,the theoretical value of limit value of height-thickness ratio is 35.The comparison with the experimental results shows that the two are in good agreement,which verifies the rationality and applicability of the limit value of height-thickness ratio.On this basis,the formula for calculating the bearing capacity of GLC siliceous light wallboard under axial compression is established.

关 键 词：GLC硅质轻型墙板 轴心受压 破坏模式 高厚比 承载力计算 

分 类 号：TU317.1[建筑科学—结构工程]