- 摘 要
-
胡萍1,杨伟军2,张振浩2,蒋耀华3(1 湖南巨星轻质建材有限公司,长沙 410011; 2 长沙理工大学,长沙 410076;3 中机国际工程设计研究院,长沙 410000)
[摘要]为准确掌握新型蜂巢芯空心楼盖的结构性能,进行了足尺九柱四区格蜂巢芯空心楼盖的破坏性静力加载试验研究。分区格进行了5种工况的加载试验,得到了楼盖结构的荷载-挠度曲线,测定了楼盖的整体极限承载能力。试验结果表明,蜂巢芯空心楼盖裂缝出现和分布情况与一般的实心板无梁楼盖基本相同,变形能力也与实心板楼盖类似。利用ANSYS软件对蜂巢芯空心楼盖在均布荷载下的受力进行了非线性有限元分析,并进行了计算开裂荷载、破坏荷载及荷载挠度曲线和实测值的对比,结果表明两者吻合良好。
[关键词]蜂巢芯空心楼盖;足尺试验;有限元分析;ANSYS
中图分类号:TU375文献标识码:A文章编号:1002-848X(2012)01-0085-06
Full-scale test study and finite element analysis on honeycombed-core hollow floor
Hu Ping1, Yang Weijun2, Zhang Zhenhao2, Jiang Yaohua3(1 Hunan Star Light Building Materials Co., Ltd., Changsha 410011, China; 2 Changsha University of Science and Technology, Changsha 410076, China; 3 International Engineering Design and Research Institute of Machine, Changsha 410000, China)
Abstract:In order to accurately grasp the structural behavior of the new honeycombed-core hollow floor, destructive static loading test study on full-scale honeycombed-core hollow floor of nine columns and four area grids was done.Through the loading test under five conditions,load-deflection curves of the floor were gained.And the ultimate bearing capacity of the floor was measured.The test results show that the cracks and their distribution of the honeycombed-core hollow floor are the same as the general floor slab. And the deformation capacity of honeycombed-core hollow floor and solid slabs is similar.Then,ANSYS was used to analyze the structural behavior of hollow floor under uniform load.Contrast on calculated cracking load, failure load and the load-deflection curves and the measured cracking load,failure load and the load-deflection curves were done.The contrast results show that the calculated values and measured values are in good agreement.
Keywords:honeycombed-core hollow floor; full-scale test; finite element analysis; ANSYS
作者简介:胡萍,学士,高级工程师,Email:965939356@qq.com。
参考文献
[1]倪江波,马克俭,张华刚.现浇轻质填芯钢筋混凝土板柱结构的试验研究[J].建筑结构学报,2003,24(2):70-75.
[2]高仲学,程文瀼,黄晓晖,等.无柱帽混凝土空心无梁楼盖的设计与研究[J].工业建筑,2003,33(2):34-37.
[3]WEIJUN YANG, ZHENHAO ZHANG, CHENWEI LIU, et al. Experimental study on simply supported slab of reinforced concrete stiffening ribbed hollow pipe girderless floor[C]//Proceedings of the Ninth International Symposium on Structural Engineering for Young Experts, 2006.
[4]GB 50152—92混凝土结构试验方法标准[S].北京:中国建筑工业出版社,1992.
[5]WEIJUN YANG, YAOHUA JIANG, BING HAN, et al. Experimental study on honeycombedcore reinforced concrete hollow floor with four edges simply supported[C]//Proceedings of the Ninth International Symposium on Structural Engineering for Young Experts, 2006.
[6]张汉平.正交异性现浇轻质填芯钢筋混凝土板柱结构的理论分析与试验研究[D].贵阳:贵州工业大学,2002.
[7]陈静茹,熊火清,彭少民.现浇钢筋混凝土空心无梁楼盖设计弯矩分析[J].武汉理工大学学报,2002,24(7):24-26.