苏州混凝土水泥制品研究院有限公司

头部文案

发布时间:2020-01-06 00:00:00
全国建材科技期刊
全国中文核心期刊
中国科技论文统计源期刊
万方数据-数字化期刊群入网期刊
中国学术期刊(光盘版)全文收录期刊
华东地区优秀科技期刊
江苏省期刊方阵“双效期刊”
中国期刊网全文收录期刊
中国科技期刊数据库全文收录期刊
预制高强硅酸盐墙板力学性能试验研究
Experimental Study on Mechanical Properties of Prefabricated High-strength Silicate Wallboards
2021年第5期
高强硅酸盐墙板;力学性能;应力-应变全曲线;破坏形态;脆性破坏
High-strength silicate wallboard; Mechanical property; Stress-strain curve; Failure mode; Brittle failure
2021年第5期
10.19761/j.1000-4637.2021.05.071.05
国家自然科学基金项目(51968009);贵州省科技计划项目(黔科合支撑[2018]2816、黔科合[2020]1Y244)。
谢国庆,任 虎,罗 双,付汝宾,孔德文
贵州大学 土木工程学院,贵州 贵阳 550025

谢国庆,任 虎,罗 双,付汝宾,孔德文

谢国庆,任虎,罗双,等.预制高强硅酸盐墙板力学性能试验研究[J].混凝土与水泥制品,2021(5):71-75.

XIE G Q,REN H,LUO S,et al.Experimental Study on Mechanical Properties of Prefabricated High-strength Silicate Wallboards[J].CHINA CONCRETE AND CEMENT

浏览量:
1000
摘   要:研究了高强硅酸盐墙板的抗压性能及破坏形态,提出了标准试块受压应力-应变本构方程,通过ABAQUS有限元软件进行了数值模拟,并与试验结果进行了对比。结果表明:标准试块受压应力-应变全过程曲线的形状和普通混凝土相似,峰值应力前曲线接近直线,达到峰值应力后,应力迅速跌落;可采用二段式曲线拟合高强硅酸盐墙板标准试块的单轴受压应力-应变关系,得出其本构模型;试件的破坏形态为脆性破坏,延性较差,抗压试件破坏时两板面出现竖向裂缝,两孔间肋出现竖向裂缝和斜裂缝;试件承载力较高,满足现有规范对建筑用隔墙条板的强度要求。 Abstract: The compressive properties and failure mode of high-strength silicate wallboards were studied, and the stress-strain constitutive equation of the standard test block was put forward. The numerical simulation was carried out by ABAQUS finite element software, and the results were compared with the experimental results. The result shows that the shape of the compressive stress-strain entire process curve of the standard test block is similar to that of ordinary concrete, and it increases approximately linearly before reaching the peak stress, and drops rapidly after reaching the peak stress. The two-section curve can be used to fit the uniaxial compressive stress-strain relationship of the standard test block of the wallboard, and its constitutive model is given. The failure mode of the specimen is brittle failure with poor ductility, and when the compressive specimen is damaged, vertical cracks appear on the two plates, and vertical cracks and oblique cracks appear on the ribs between the two hole ribs. The bearing capacity of the specimen is high, which can meet the strength requirements of the existing codes for artition board used in buildings.
英文名 : Experimental Study on Mechanical Properties of Prefabricated High-strength Silicate Wallboards
刊期 : 2021年第5期
关键词 : 高强硅酸盐墙板;力学性能;应力-应变全曲线;破坏形态;脆性破坏
Key words : High-strength silicate wallboard; Mechanical property; Stress-strain curve; Failure mode; Brittle failure
刊期 : 2021年第5期
DOI : 10.19761/j.1000-4637.2021.05.071.05
文章编号 :
基金项目 : 国家自然科学基金项目(51968009);贵州省科技计划项目(黔科合支撑[2018]2816、黔科合[2020]1Y244)。
作者 : 谢国庆,任 虎,罗 双,付汝宾,孔德文
单位 : 贵州大学 土木工程学院,贵州 贵阳 550025

谢国庆,任 虎,罗 双,付汝宾,孔德文

谢国庆,任虎,罗双,等.预制高强硅酸盐墙板力学性能试验研究[J].混凝土与水泥制品,2021(5):71-75.

XIE G Q,REN H,LUO S,et al.Experimental Study on Mechanical Properties of Prefabricated High-strength Silicate Wallboards[J].CHINA CONCRETE AND CEMENT

摘要
参数
结论
参考文献
引用本文

摘   要:研究了高强硅酸盐墙板的抗压性能及破坏形态,提出了标准试块受压应力-应变本构方程,通过ABAQUS有限元软件进行了数值模拟,并与试验结果进行了对比。结果表明:标准试块受压应力-应变全过程曲线的形状和普通混凝土相似,峰值应力前曲线接近直线,达到峰值应力后,应力迅速跌落;可采用二段式曲线拟合高强硅酸盐墙板标准试块的单轴受压应力-应变关系,得出其本构模型;试件的破坏形态为脆性破坏,延性较差,抗压试件破坏时两板面出现竖向裂缝,两孔间肋出现竖向裂缝和斜裂缝;试件承载力较高,满足现有规范对建筑用隔墙条板的强度要求。

Abstract: The compressive properties and failure mode of high-strength silicate wallboards were studied, and the stress-strain constitutive equation of the standard test block was put forward. The numerical simulation was carried out by ABAQUS finite element software, and the results were compared with the experimental results. The result shows that the shape of the compressive stress-strain entire process curve of the standard test block is similar to that of ordinary concrete, and it increases approximately linearly before reaching the peak stress, and drops rapidly after reaching the peak stress. The two-section curve can be used to fit the uniaxial compressive stress-strain relationship of the standard test block of the wallboard, and its constitutive model is given. The failure mode of the specimen is brittle failure with poor ductility, and when the compressive specimen is damaged, vertical cracks appear on the two plates, and vertical cracks and oblique cracks appear on the ribs between the two hole ribs. The bearing capacity of the specimen is high, which can meet the strength requirements of the existing codes for artition board used in buildings.

扫二维码用手机看
未找到相应参数组,请于后台属性模板中添加

(1)采用轴心受压试验测得高强硅酸盐墙板标准试块的轴心受压极限荷载为169.3 kN,抗压强度标准值为40.0 MPa,弹性模量为11 149 MPa,为同等级普通混凝土强度等级的34%。
(2)试件破坏为孔薄壁处的劈裂破坏,受压性能较好,但延性较差,属于脆性破坏。
(3)硅酸盐墙板的应力-应变关系在峰值应力之前接近于直线,峰值应力后急剧下降,表现出较大的脆性。

[1] 王俊,赵基达,胡宗羽.我国建筑工业化发展现状与思考[C]//中国土木工程学会.《土木工程学报》——2017“论坛”汇编.北京:中国土木工程学会,2017:25-47.
[2] 董晶,范力.预制轻混凝土墙板轴心受压性能试验研究[J].工业建筑,2019,49(3):86-91
[3] 中华人民共和国建设部.建筑隔墙用轻质条板.建筑隔墙用轻质条板通用技术要求:JG/T 169—2016[S].北京:中国标准出版社,2005.
[4] 程从密,邓法,朱玉生,等.孔对墙材抗压强度影响的探讨[J].广东建材,2013(11):9-11. 
[5] 陶秋旺,施楚贤.孔洞对多孔砖砌体抗压强度的影响及抗压强度取值[J].建筑结构,2005,35(9):20-23.
[6] 中华人民共和国住房和城乡建设部.混凝土强度检验评定标准:GB/T 50107-2010[S].北京:中国建筑工业出版社,2010.
[7] 谭彬.活性粉末混凝土受压应力应变全曲线的研究[D].长沙:湖南大学,2007.
[8] DESAYI P,KRISHNAN S.Equation for the Stress-strain Curve of Concrete[J].Journal of the American Concrete Institute,1964,61(3):345-350.
[9] 祖汉松,张厚江,贺昌勇,等.人造板弹性模量检测方法及其研究现状[J].林业机械与木工设备,2014,42(1):13-16.
[10] 王海朝.夹芯结构板力学性能的试验研究[D].唐山:河北联合大学,2013.
[11] 徐朝阳.木质复合蜂窝夹芯材料性能的研究[D].南京:南京林业大学,2007.
[12] 田融昕.陶粒混凝土超长内隔墙板力学性能研究[D].扬州:扬州大学,2019.
[13] MANDER J B,PRIESTLEY M J N,PARK R.Theoretical stress-strain model for confined concrete [J].Journal of Structural Engineering,1988,114(8):1804-1826.
[14] 董晶.竖向荷载作用下预制轻混凝土墙板力学性能研究[D].徐州:中国矿业大学,2016.
[15] 吴海燕.水平拼缝部位采用强连接的叠合板式剪力墙抗震性能研究[D].合肥:合肥工业大学,2014.

谢国庆,任虎,罗双,.预制高强硅酸盐墙板力学性能试验研究[J].混凝土与水泥制品,2021(5):71-75.

XIE G Q,REN H,LUO S,et al.Experimental Study on Mechanical Properties of Prefabricated High-strength Silicate Wallboards[J].CHINA CONCRETE AND CEMENT

相关文件

暂时没有内容信息显示
请先在网站后台添加数据记录。

关注《混凝土与水泥制品》

总访问量 468,401   网站统计

官方微信公众号关闭
苏州混凝土水泥制品研究院有限公司

关于我们    |    联系我们    |    订购杂志    |    回到顶部

版权所有:中国混凝土与水泥制品网  苏ICP备10086386号   网站建设:中企动力 苏州

版权所有:中国混凝土与水泥制品网

苏ICP备10086386号

网站建设:中企动力 苏州