HRB500级钢筋,钢筋混凝土梁,数值模拟,裂缝,黏结滑移," /> HRB500级钢筋,钢筋混凝土梁,数值模拟,裂缝,黏结滑移,"/> HRB500级钢筋混凝土梁受弯性能分析
Please wait a minute...
浙江大学学报(工学版)
J4  2013, Vol. 47 Issue (9): 1566-1572    DOI: 10.3785/j.issn.1008-973X.2013.09.008
土木工程、工程力学     
HRB500级钢筋混凝土梁受弯性能分析
蒋遨宇,陈驹,金伟良
浙江大学 结构工程研究所,浙江 杭州 310058
Flexural behaviour analysis of HRB500 reinforced concrete beams
JIANG Ao-yu, CHEN Ju, JIN Wei-liang
Institute of Structural Engineering, Zhejiang University, Hangzhou 310058, China
 全文: PDF 
摘要：

为了研究HRB500钢筋在混凝土梁中的受力性能,进行了7根HRB500钢筋混凝土梁的受弯性能试验,建立了HRB500级钢筋混凝土梁受弯的数值模型.模型以梁截面上的纵向力、截面力矩、钢筋微元力等平衡方程为基础,通过求解任意弯矩作用下任意截面上的平衡方程,确定整根梁的受力响应,得到挠度、曲率、应变等随荷载的变化情况,以及混凝土裂缝宽度的发展情况.模型考虑钢筋与混凝土之间的黏结滑移和裂缝的影响,以及裂缝之间受拉区混凝土的影响,计算结果与7根试验梁结果相比较,验证了模型的准确性.利用建立的数值模型分析了HRB500级钢筋混凝土梁内钢筋与混凝土的协同工作,研究了相邻２条裂缝之间相对滑移、黏结力、混凝土和钢筋应变等的变化情况.对多因素进行参数分析,分析表明:采用高强度的混凝土能够较好地利用HRB500钢筋的高强度；随着梁截面高度的增加,裂缝宽度值成为限制梁承载力发挥的制约条件；增加保护层厚度不利于梁承载力的发挥,但影响很小可忽略.
关键词： HRB500级钢筋')" href="#">HRB500级钢筋;  钢筋混凝土梁;  数值模拟;  裂缝;  黏结滑移    
Abstract:

In order to investigate the mechanical performance of HRB500 rebar in concrete beams, a test program of 7 reinforced concrete beams using HRB500 rebar was performed and a corresponding numerical model was established. Based on the axial force and bending moment equilibrium equation on beam section, as well as the translational equilibrium equations of the bar, the numerical model was developed. By solving these equilibrium equations, the response of any beam section under any load condition could be obtained, and the development of deflection, curvature, strain, width of cracks and so on also could be obtained. The effects of initial crack, bond-slip behaviour between rebar and concrete, and the contribution of the concrete in tension between adjacent cracks were taken into consideration in the model. The numerical results were verified against the results of seven tested beams. Based on the developed numerical model, cooperation of rebar and concrete in the bending process, distribution of slip, bonding stress, strain of rebar and so on between adjacent cracks were investigated. In addition, a parametric study was conducted to investigate the influence of several factors on the flexural behaviour of HRB500 reinforced concrete beams. It is shown that utilization of the high strength of HRB500 rebar increases with the increasing concrete strength. The crack  width becomes the controlling factor on the bending capacity while the height of beam cross section increases. The bending capacity of beams decreases with the increasing concrete cover depth, but the effect is negligible．
Key words:  HRB500 rebar    reinforced concrete beams    numerical simulation    crack    bond-slip behaviour
出版日期: 2013-09-17
:  TU 317  
基金资助:

 国家科技支撑计划资助项目(2006BAJ03A02 )；浙江省建设厅科研推广资助项目
通讯作者: 陈驹，男，副教授.     E-mail: cecj@zju.edu.cn
作者简介: 蒋遨宇（1987-），男，博士生，从事结构工程研究.E-mail：civiljay@gmail.com
服务　　
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章　　

引用本文:

蒋遨宇,陈驹,金伟良. HRB500级钢筋混凝土梁受弯性能分析[J]. J4, 2013, 47(9): 1566-1572.

JIANG Ao-yu, CHEN Ju, JIN Wei-liang. Flexural behaviour analysis of HRB500 reinforced concrete beams. J4, 2013, 47(9): 1566-1572.

链接本文:

http://www.zjujournals.com/xueshu/eng/CN/10.3785/j.issn.1008-973X.2013.09.008    或    http://www.zjujournals.com/xueshu/eng/CN/Y2013/V47/I9/1566

［1］ 毛达岭,刘立新,范丽. HRB500钢筋黏结锚固性能及设计建议［J］. 郑州大学学报:工学版,2004,25(2):54-58．
MAO Da-lin, LIU Li-xin, FAN Li. Bond-ancorage properties and proposed design of HRB500 steel bars in concrete［J］. Journal of Zhengzhou University：Engineering Science,2004,25(2):54-58．
［2］ 王全凤,刘凤谊,杨勇新,等. HRB 500级钢筋混凝土简支梁受弯试验［J］. 华侨大学学报：自然科学版,2007,28(3):300-303．
WANG Quan-feng,LIU Feng-yi,YANG Yong-xin, et al. Experimental investigation on flexural behavior of simple supported RC beams with grade HRB 500 reinforcement［J］. Journal of Huaqiao University：Natural Science, 2007,28(3):300303．
［3］ 王全凤,刘凤谊,杨勇新,等.HRB500级钢筋混凝土连续梁抗弯试验研究［J］. 四川建筑科学研究,2008,34(3):14-17．
WANG Quan-feng,LIU Fi-yeng,YANG Yong-xin, et al. Experimental study of bending characteristics of continuous RC beams with grade HRB500 reinforcement［J］. Sichuan Building Science, 2008,34(3):14-17．
［4］ 丁振坤,邱洪兴,胡涛,等. HRB500级钢筋混凝土梁受弯刚度试验［J］. 建筑科学与工程学报,2009,26(1):115-120．
DING Zhen-kun,QIU Hong-xin,HU Tao, et al. Experiment on flexural stiffness of reinforced concrete beams with HRB500 reinforcement bars［J］. Journal of Architecture and Civil Engineering, 2009,26(1):115-120．
［5］ 蒋永生,梁书亭,卢建峰等. 高强钢筋高强混凝土受弯构件的变形性能试验研究［J］. 建筑结构学报, 1998,19(2):37-43．
JIANG Yong-sheng, LIANG Shu-ting, LU Jian-feng, et al. Experimental research for deformation behavior of high-strength concrete flexural member with high strength rebars［J］. Journal of Building Structures, 1998,19(2):37-43．
［6］ RASHID M A, MANSUR M A. Reinforced High-Strength Concrete Beams in Flexure［J］. ACI Structural Journal, 2005,102(3):462-471．
［7］ HONGNESTAD E, HANSON N W, MCHENRY D. Concrete stress distribution in ultimate strength design［J］. ACI Structural Journal,1955,52(4):455-479．
［8］ BALAKRISHNAN S, MURRAY D W. Concrete constitutive model for NLFE analysis of structures［J］. Journal of Structural Engineering， 1988,114(7):1449-1466．
［9］ CEB-FIP Model Code 1990［S］. London：Thomas Telford Services Ltd., 1998.
［10］ GAETANO M, MARISA P. A refined R.C. beam element including bond-slip relationship for the analysis of continuous beams［J］. Computers and Structures,1998,69:53-62．
［11］ OLIVEIRA R S, RAMALHO M A, CORREA M R S. A layered finite element for reinforced concrete beams with bond-slip effects［J］. Cement and Concrete Composites, 2008,30:245-252.
[1] 蔡自伟, 陆洲导, 李凌志, 苏磊, 林闯. 梁侧锚固钢板加固混凝土梁受剪性能试验[J]. 浙江大学学报(工学版), 2018, 52(1): 82-88.
[2] 戴理朝, 王磊, 张建仁, 羊日华. 钢绞线锈蚀产物填充及裂缝宽度预测[J]. 浙江大学学报(工学版), 2018, 52(1): 97-105.
[3] 刘瑞媚, 刘玉坤, 王智化, 刘颖祖, 胡利华,邵哲如, 岑可法. 垃圾焚烧炉排炉二次风配风的CFD优化模拟[J]. 浙江大学学报(工学版), 2017, 51(3): 500-507.
[4] 韩运动, 姚松. 高速列车气动性能的尺度效应分析[J]. 浙江大学学报(工学版), 2017, 51(12): 2383-2391.
[5] 张晓涛,谭翀,陆愈实. 传统控烟设施对空气幕阻烟性能的影响[J]. 浙江大学学报(工学版), 2016, 50(9): 1738-1745.
[6] 徐铨彪,陈刚,贺景峰,龚顺风. 复合配筋混凝土预制方桩抗弯性能试验[J]. 浙江大学学报(工学版), 2016, 50(9): 1768-1776.
[7] 高航, 付有志, 王宣平, 彭灿. 螺旋面磨料流光整加工仿真与试验[J]. 浙江大学学报(工学版), 2016, 50(5): 920-926.
[8] 李正昊,楼文娟,章李刚,卞荣,段志勇. 地貌因素对垭口内风速影响的数值模拟[J]. 浙江大学学报(工学版), 2016, 50(5): 848-855.
[9] 刘海龙, 周家伟, 陈云敏, 李育超, 詹良通. 城市生活垃圾填埋场稳定化评估[J]. 浙江大学学报(工学版), 2016, 50(12): 2336-2342.
[10] 林呈祥,凌道盛,钟世英. 颗粒流数值模拟在月壤岩土问题研究中的应用概况[J]. 浙江大学学报(工学版), 2015, 49(9): 1679-1691.
[11] 张井志, 李蔚. 微小管径圆管气-液Taylor流动数值模拟[J]. 浙江大学学报(工学版), 2015, 49(8): 1572-1576.
[12] 谢阳,姚子澍,麻剑,罗麒元,许沧粟. 柴油温度对喷孔内流动特性影响的仿真分析[J]. 浙江大学学报(工学版), 2015, 49(5): 938-943.
[13] 曹晓萌, 顾正华. 3种非淹没双体丁坝作用尺度划分准则及比较[J]. 浙江大学学报(工学版), 2015, 49(2): 200-207.
[14] 胡友瑞,刘彦,汪洋,刘建忠,周俊虎,胡巍,李洪伟. 高湿氢氧喷注器数值分析与正交设计[J]. 浙江大学学报(工学版), 2015, 49(12): 2403-2409.
[15] 葛倩如,黄志义,王金昌,张晨旭. BFRP连续配筋复合式路面配筋设计[J]. 浙江大学学报(工学版), 2015, 49(1): 186-192.